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Zf Friedrichshafen Ag patents (2015 archive)


Recent patent applications related to Zf Friedrichshafen Ag. Zf Friedrichshafen Ag is listed as an Agent/Assignee. Note: Zf Friedrichshafen Ag may have other listings under different names/spellings. We're not affiliated with Zf Friedrichshafen Ag, we're just tracking patents.

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12/31/15 / #20150377325

Multi-stage planetary transmission

A multi-speed transmission in planetary design for a vehicle with a housing (9) is proposed, whereas a first shaft (1) is provided as a drive (an) and a second shaft (2) is provided as an output (ab) that is arranged in a manner axially parallel to the drive, whereas three planetary gear sets (rs1, rs2, rs3) and additional shafts (3, 4, 5, 6, 7, 8, 9) along with six shifting elements (k1, k2, k3, k4, b1, b2) are provided, through which the actuation of several gears can be realized, and whereas machine elements (st1, st2) are provided for the transfer of torque between the drive (an) and the output (ab). In accordance with the invention, the first shaft (1) is connectable, as drive (an), to the ring gear (hr3) of the third planetary gear set (rs3), to the sun gear (sri) of the first planetary gear set (rs1), to the sun gear (sr3) of the third planetary gear set (rs3), to the planetary gear carrier (pt1) of the first planetary gear set (rs1) and to the first machine element (st1), and the second shaft (2) is connected or connectable, as output (ab), to the first machine element (st1) and to the second machine element (st2).. ... Zf Friedrichshafen Ag

12/31/15 / #20150377321

Torsional vibration damping arrangement for the drive train of a vehicle

A torsional vibration damping arrangement for the drivetrain of a vehicle has an input region driven in rotation around an axis of rotation a and an output region. A first torque transmission path and a second torque transmission path parallel thereto proceed from the input region. ... Zf Friedrichshafen Ag

12/31/15 / #20150375736

Method for operating a drive unit for a hybrid vehicle

Method for operating a drive unit for a hybrid vehicle, whereas the drive unit comprises a drive assembly (3) with an internal combustion engine (1) and an electric motor (2) and a transmission (5) featuring several sub-transmissions (6, 7) shifting between the drive assembly (3) and an output (4), whereas, through a planetary transmission (10), the electric motor (2) is coupled to an input shaft (8) of a first sub-transmission (6) and an input shaft (9) of a second sub-transmission (7) shifted in parallel to the first sub-transmission (6), whereas, through a frictional-locking separating clutch (11), the internal combustion engine (1) is able to be coupled to the input shaft (8) of the first sub-transmission (6) and, if the separating clutch (11) is locked, is coupled to the same element (15) of the planetary transmission (10) together with the input shaft (8) of the first sub-transmission (8), and whereas, for the coupling of the internal combustion engine (1) at the output (4) coming out of all-electric driving, the torque provided by the internal combustion engine (1) is transferred through the slip-controlled separating clutch (11), in order to, upon all-electric driving, unload the previously locked shift element and disengage it in the unloaded state.. . ... Zf Friedrichshafen Ag

12/24/15 / #20150369341

Multi-speed gearbox

The multi-speed transmission comprises four planetary gear sets eight rotatable shafts and six shifting elements. The sun gear of the first planetary gear set is connected to the fifth shaft, which is attachable to the housing through a third brake. ... Zf Friedrichshafen Ag

12/24/15 / #20150369333

Torsional vibration damping arrangement for the drivetrain of a vehicle

A torsional vibration damping arrangement for a drivetrain of a vehicle has an input region driven in rotation around an axis of rotation a, an output region, a first torque transmission path and parallel thereto a second torque transmission path that each proceed from the input region, a coupling arrangement communicating with the output region for superposing the torques guided via the torque transmission paths, and a phase shifter arrangement for the first torque transmission path for generating a phase shift of rotational irregularities guided via the first torque transmission path relative to rotational irregularities guided via the second torque transmission path. An output element of the phase shifter arrangement forms a planet gear carrier of the coupling arrangement, at least one planet gear being rotatably supported thereon.. ... Zf Friedrichshafen Ag

12/24/15 / #20150369332

Vibration damper assembly, in particular for the power train of a vehicle

A vibration damping arrangement includes a first torsional vibration damper coupable to a drive member for transmitting torque and with a first secondary side which is rotatable with respect to the first primary side against the return action of a first damper element arrangement and a second torsional vibration damper with a second primary side connected to the first secondary side and with a second secondary side which is rotatable with respect to the second primary side against the return action of a second damper element arrangement and which is couplable to an output member, a deflection mass pendulum arrangement comprising at least one deflection mass; wherein the first damper element arrangement comprises a plurality of first damper element units acting parallel to one another and/or in that the second damper element arrangement comprises a plurality of second damper element units acting parallel to one another.. . ... Zf Friedrichshafen Ag

12/24/15 / #20150369299

Structural unit for a hybrid powertrain

A constructional unit for a hybrid powertrain of a motor vehicle includes: an electric machine with a stator and a rotor, wherein the rotor is configured to transmit a torque to the powertrain; a clutch arrangement with at least one clutch actuation unit, wherein the clutch arrangement is configured to decouple an internal combustion engine from the powertrain, the internal combustion engine being provided parallel to the electric machine for transmitting a torque; and a vibration absorber apparatus configured to reduce vibrations in the powertrain. The clutch actuation unit is arranged axially substantially radially within the vibration absorber apparatus.. ... Zf Friedrichshafen Ag

12/24/15 / #20150369298

Structural unit for a drive train of a motor vehicle

A constructional unit for a drivetrain of a motor vehicle includes: at least one clutch arrangement configured to decouple an internal combustion engine from the drivetrain, the at least one clutch arrangement having at least one clutch element; a speed-adaptive vibration absorber apparatus, configured to reduce vibrations in the drivetrain with at least one damper mass deflectable along a deflection path; and a limiting device configured to exert a force on the at least one damper mass that limits the movement of the damper mass. The limiting device is further configured, for limiting the movement of the at least one damper mass, to be actuatable by the at least one clutch element.. ... Zf Friedrichshafen Ag

12/17/15 / #20150362008

Joint device for a motor vehicle

A joint device (1) having an axially extending pivot pin (3), in particular a so-termed claw, and an elastically deformable layer (5) that wholly or partially surrounds the pivot pin radially. The deformable layer is at least partially in contact on its radially outer side (6) with a housing (2) and is connected, such as by vulcanization at least at one axial end, with an annular body (7). ... Zf Friedrichshafen Ag

12/10/15 / #20150354991

Coil arrangement having two coils

A cod arrangement, in particular for a position sensor, has a first coil (1) and a second coil (2) which are electrically connected to one another and disposed substantially coaxially relative to one another. The first coil (1) has a winding density that increases in the longitudinal direction (x) of the coil arrangement, and the second coil (2) has a winding density that decreases in the longitudinal direction (x) of the coil arrangement. ... Zf Friedrichshafen Ag

12/10/15 / #20150354681

Range-change transmission of a motor vehicle

A group transmission of a motor vehicle having a main transmission and a downstream range group. The range group has two gear steps for different speed ranges and a reversing step for reverse driving. ... Zf Friedrichshafen Ag

12/10/15 / #20150354669

Gearbox for an adjustable vehicle stabilizer, and vehicle stabilizer

A gearbox (8) for an adjustable vehicle stabilizer (1) with two stabilizer sections (2a, 2b) that can be twisted relative to one another and comprise a first planetary gear stage (p1) which has at least a sun gear (p11), a ring gear (p12), a planetary carrier (p13). Planetary gears (p14) are rotatably positioned on rotating axles (d) of the planetary carrier (p13) whereby the planetary gears (p14) mesh with the sun gear (p11) and the ring gear (p12). ... Zf Friedrichshafen Ag

12/10/15 / #20150354661

Cylinder unit having an adhesive bond

A cylinder unit includes a cylinder which is closed at one end by a base, wherein an adhesive joint is formed between the cylinder and the base, characterized in that the adhesive joining of the base is carried out in an annular space filled with adhesive, wherein the cylinder or the base is wetted with adhesive in the annular space at an inner wall and at an outer wall so that there are two gluing surfaces separated by the wall.. . ... Zf Friedrichshafen Ag

12/10/15 / #20150353135

Support structure and method of producing a support structure

A support structure (1), in particular an axle support for a motor vehicle, which is made as a single-shell or multi-shell frame element (7) of fiber-reinforced plastic. The frame element (7) has at least one elastic connection point (9, 9′, 9″, 9′″) for connection to an aggregate such that the at least one elastic connection point (9, 9′, 9″, 9′″) is formed integrally with the frame element (7). ... Zf Friedrichshafen Ag

12/10/15 / #20150352942

Drive unit for a hybrid vehicle and method for operating the same

Drive unit for a hybrid vehicle, whereas the drive unit comprises a drive assembly (3) with an internal combustion engine (1) and an electric motor (2) and a transmission (5) featuring several sub-transmissions (6, 7) shifting between the drive assembly (3) and an output (4), whereas, through a planetary transmission (10), the electric motor (2) is coupled to an input shaft (8) of a first sub-transmission (6) and an input shaft (9) of a second sub-transmission (7) shifted in parallel to the first sub-transmission (6), whereas, through a separating clutch (11), the internal combustion engine (1) is able to be coupled to the input shaft (8) of the first sub-transmission (6) and, if the separating clutch (11) is locked, is coupled to the same element of the planetary transmission (10) together with the input shaft (8) of the first sub-transmission (6), whereas a bypass shift element (12) works together with the planetary transmission (10) in such a manner that, with a locked bypass shift element (12), a torque-proof connection between the electric motor (2), the input shaft (8) of the first sub-transmission (6) and the input shaft (9) of the second sub-transmission (7) and thus a mandatory equality of rotational speed between the same, exist, while, with an open bypass shift element (12), this torque-proof connection between the electric motor (2) and the two input shafts (8, 9) of the two sub-transmissions (6, 7), and thus the mandatory equality of rotational speed, do not exist, whereas the separating clutch (11) is formed as a frictional-locking or positive-locking separating clutch, and whereas the bypass shift element (12) is formed as a frictional-locking bypass shift element (12).. . ... Zf Friedrichshafen Ag

12/03/15 / #20150345625

Gear change lever device for a vehicle gearing, evaluation device for a gear change lever device and method for electronic activation of a vehicle device

A gear change lever device for a vehicle transmission with a holder, a gear change lever movably arranged on a holder and comprising a gripping surface, wherein the gear change lever can be moved to pre-determined positions (p, r, n, d), a sensor device, by which the current position of the gear change lever can be detected, an evaluation device coupled to the sensor device for the control of transmission, by means of which in cooperation with the sensor device a change in the gear change lever position can be recognized, and at least one touch sensor coupled to the evaluation device and arranged on the gear change lever in the area of the grip surface, by means of which a human touch of the grip surface can be detected and information about the touch state of the gripping surface can be sent to evaluation device.. . ... Zf Friedrichshafen Ag

12/03/15 / #20150345603

Transmission for a motor vehicle

A motor vehicle transmission having at least two sub-transmissions, each with at least one input shaft. The input shafts are arranged on an input side on an input axis. ... Zf Friedrichshafen Ag

12/03/15 / #20150345518

Device for varying the volumes of a first hydraulic machine and a second hydraulic machine

A device for varying the swept volumes of first and second hydraulic machines, whose swept volumes depends upon pivoting positions of adjustable axes thereof which can be connected to one another by first and second lines. The axes can be coupled to a piston-cylinder device which is adjustable by a control valve unit for pivoting the axes. ... Zf Friedrichshafen Ag

12/03/15 / #20150344107

Marine hull and marine vessel

A marine hull including a hull plate manufactured from metal, a set of longitudinal reinforcements and a set of transverse reinforcements, at least one longitudinal reinforcement of the set of longitudinal reinforcements being arranged between the hull plate and at least one transverse reinforcement of the set of transverse reinforcements, and being connected to an inside of the hull plate. The marine hull is characterized in that the hull plate has a thickness that is less than 10 mm, and that the at least one longitudinal reinforcement is manufactured from the same metal as the hull plate and comprises at least one resilient segment arranged to spring in the direction transverse to the thickness of the hull plate, and that the resilient segment is arranged to bottom upon a compression that is more than 10 mm and less than 50 mm.. ... Zf Friedrichshafen Ag

11/26/15 / #20150340938

Induction generator and method for producing an induction generator

An induction generator (100) for a remote switch which comprises a u-shaped magnetic diverter (102) with first and second limbs as well as a coil core (104) with an induction coil (106) arranged between the limbs. A movable magnetic element (110) is provided for switching the induction generator (100). ... Zf Friedrichshafen Ag

11/26/15 / #20150337892

Ball joint

A ball joint, in particular, an axial joint, having a ball stud, which is enclosed in a ball socket. The ball socket is enclosed in a joint housing and is integrally formed having at least one spring element in a region of the ball socket that faces away from the opening of the joint housing. ... Zf Friedrichshafen Ag

11/19/15 / #20150330506

Gear shifting system and gear shifting element for a gear shifting system

A gear shifting device is provided, by which an axial shift movement of a shift element into a shift position through interaction of a shift pin with an associated groove-like shift gate that is changeable in an axial direction. The shift element features, on an inner diameter and/or an outer diameter, the associated shift gate, while the respective shift pin is arranged in a radially opposite and displaceable manner on a transmission component adjacent to the shift element. ... Zf Friedrichshafen Ag

11/19/15 / #20150328946

Linkage device for a motor vehicle

A joint device (6) including an axially extending pivot pin (8) and a housing (11) that surrounds the pivot pin radially, wholly or partially, such that the pivot pin (8) and the housing (11) can move relative to one another at least by pivoting. A separate retaining element (12; 13), for the housing (11), is associated with the joint device (6). ... Zf Friedrichshafen Ag

11/12/15 / #20150323061

Planetary gearset

. . A planetary gear set has a sun gear, multiple planetary gears mounted on a planetary carrier, and a ring gear enclosing the planetary gears, which is designed in split form perpendicular to its axis of rotation and is formed from two ring gear parts arranged coaxially to each other. An adapter component that, for the purpose of a torque-transferring or torque-supporting operative connection of the planetary carrier, is connected in a torque-proof manner to an additional component in a mounted state with the planetary carrier, and is guided, viewed radially, outward by the ring gear parts.. ... Zf Friedrichshafen Ag

11/12/15 / #20150323045

Multistep-automatic-transmission

The invention relates to an automatic transmission with nine rotatable shafts (1 to 9) and four planetary gear sets (rs1 to rs4), each with a first, second and third element. For the shifting of multiple forward gears and one reverse gear, seven shift elements (a to g) are provided. ... Zf Friedrichshafen Ag

11/12/15 / #20150322999

Joint device for a motor vehicle

A joint device (6) having an axially extending joint pin (8) and a housing (11) that radially surrounds the pin, either wholly or partially. The joint pin (8) and the housing (11) can move relative to one another at least by pivoting or rotating, and a gap (13) between the two components is closed by a sealing device (14) which is effective in any position of the components (8; 11) relative to one another. ... Zf Friedrichshafen Ag

11/05/15 / #20150316124

Torsional vibration damper

A torsional vibration damper is provided with a damper mass carrier at which is received at least one damper mass that is movable relative to the damper mass carrier and at least one stop. The at least one stop is associated with each stop side of the at least one damper mass. ... Zf Friedrichshafen Ag

11/05/15 / #20150316123

Torsional vibration damper assembly

A torsional vibration damping arrangement for a drivetrain of a vehicle, having a carrier arrangement which is rotatable around an axis of rotation, a deflection mass movable in circumferential direction relative to the carrier arrangement, carrier arrangement and the deflection mass are coupled to be rotatable relative to one another via restoring elements arranged in circumferential direction that extend from the deflection mass in direction of the carrier arrangement. A restoring element is deformable around a force application point which is movable in radial direction under centrifugal force and which is associated with the restoring element. ... Zf Friedrichshafen Ag

10/29/15 / #20150308540

Torsional vibration damping arrangement for said powertrain of a vehicle

A torsional vibration damping arrangement (10) for the drivetrain of a vehicle comprises an input region (50) to be driven in rotation around an axis of rotation a and an output region (55), and a first torque transmission path (47) and parallel thereto a second torque transmission path (48) which proceed from the input region, and a coupling arrangement (41) for superposing the torques guided via the two torque transmission paths, which coupling arrangement (41) communicates with the output region, and a phase shifter arrangement (43) for the first torque transmission path for generating a phase shift of rotational irregularities guided via the first torque transmission path relative to rotational irregularities guided via the second torque transmission path. The phase shifter arrangement comprises at least one spring set (40) with a curved spring (90).. ... Zf Friedrichshafen Ag

10/22/15 / #20150300488

Gear shifting system and gear shifting element for a gear shifting system

A gear shifting device, by which an axial shift movement of a shift element into a shift position is triggered through interaction of a shift pin with an associated groove-like shift gate that changes in an axial direction. The shift element features the associated shift gate, while the respective shift pin is arranged in a radially displaceable manner on a transmission component adjacent to the shift element.. ... Zf Friedrichshafen Ag

10/22/15 / #20150300460

Multi-speed gearbox

A multi-speed transmission has four planetary gear sets, eight rotatable shafts and six shifting elements. The sun gear of the first planetary gear set is connected to the third shaft, which is detachably connectable to the input shaft through a first coupling and is attachable to the housing through a first brake. ... Zf Friedrichshafen Ag

10/22/15 / #20150300459

Transmission for a motor vehicle

A transmission for motor vehicles includes a drive shaft; an output shaft; a housing (ge); six shift elements in the form of a first brake (b1) and a second brake (b2) along with a first clutch (k1), a second clutch (k2, k2′, k2″, k2″′, k2″″, k2″″′), a third clutch (k3) and a fourth clutch (k4, k4′); a first planetary gear set (pr1), a second planetary gear set (pr2) and a third planetary gear set (pr3). The shift elements are selectively actuated, by which ten forward gears and one reverse gear can be realized through different transmission ratio relationships between the drive shaft and the drive shaft. ... Zf Friedrichshafen Ag

10/22/15 / #20150300458

9-speed planetary gearbox

A transmission includes a drive shaft (1), an output shaft (2), a housing (g), a first planetary gear set (pr1), a second planetary gear set (pr2) and a third planetary gear set (pr3), as well as six shift elements, comprising a first brake (b1), a second brake (b2), a first clutch (k1), a second clutch (k2, k2′), a third clutch (k3, k3′, k3″) and a fourth clutch (k4, k4′). The shift elements are selectively actuated, by which nine forward gears and one reverse gear are realized through different transmission ratio relationships between the drive shaft (1) and the output shaft (2). ... Zf Friedrichshafen Ag

10/22/15 / #20150300457

9-speed planetary gearbox

A transmission has one drive shaft, one output shaft, one housing, a first planetary gear set, a second planetary gear set, and a third planetary gear set, six shift elements, including a first brake, a second brake, a first clutch, a second clutch, a third clutch, and a fourth clutch. The shift elements selectively actuated, by which nine forward gears and one reverse gear are realized through different transmission ratio relationships between the drive shaft and the output shaft. ... Zf Friedrichshafen Ag

10/22/15 / #20150298768

Hull with opening in the floor for a boat drive

A boat hull (1) for a boat, with a boat drive (2) which extends through a hull opening (3) in the bottom of the boat hull (1). The boat drive (2) is connected to the boat hull (1) by at least one fastening member (4). ... Zf Friedrichshafen Ag

10/22/15 / #20150298533

Hybrid drive module and powertrain

A hybrid drive module (110) which is constructed to transmit a torque from an input side (120) to an output side (130)includes a torsional vibration damper (180) which is coupled to the input side (120) and which works at least partially on the principle of power splitting, a disconnect clutch (280) which is coupled to the torsional vibration damper (180) and to the output side (130) and which is constructed to interrupt a torque flow from the input side (120) to the output side (130), and an electric drive component (320) which is coupled to the output side (130) and which is arranged so as to introduce a torque component provided by the electric drive component (320) into the torque flow downstream of the disconnect clutch (280).. . ... Zf Friedrichshafen Ag

10/01/15 / #20150276002

Damping valve arrangement with a multistage damping force characteristic

A damping valve arrangement for a vibration damper has a main valve body, a first auxiliary valve body and a second auxiliary valve body with at least two through-flow channels connected hydraulically in parallel for a flow direction of a damping medium. Outlet cross sections of the at least two through-flow channels are influenced by at least one valve disk. ... Zf Friedrichshafen Ag

09/24/15 / #20150267810

Powershift transmission and method for operation thereof

A powershift transmission with a dual-clutch main transmission and a downstream planetary gearset transmission. The main transmission has first and second partial transmissions. ... Zf Friedrichshafen Ag

09/24/15 / #20150267809

Powershift transmission and method for operation thereof

A powershift transmission with a dual-clutch main transmission and a downstream planetary gearset. The main transmission includes two partial transmissions and corresponding input shafts and clutches and a common output shaft. ... Zf Friedrichshafen Ag

09/24/15 / #20150267782

Multi-stage transmission

The multi-speed transmission comprises four planetary gear sets (p1, p2, p3, p4), eight rotating shafts (1, 2, 3, 4, 5, 6, 7, 8) and six shifting elements (03, 04, 05, 15, 17, 48), whereas the sun gear of the first planetary gear set (p1) is connected to the fifth shaft (5), which is connectable to the input shaft (1) through a first clutch (15) and is attachable to the housing (g) through a third brake (05), whereas the drive shaft (1) is, through a second clutch (17), connectable to the seventh shaft (7) connected to the bar of the fourth planetary gear set (p4) and the ring gear of the third planetary gear set (p3) and is connected to the sun gear of the second planetary gear set (p2), whereas the sixth shaft (6) is connected to the ring gear of the first planetary gear set (p1), the bar of the second planetary gear set (p2) and the ring gear of the fourth planetary gear set (p4) and the third shaft (3) is connected to the sun gear of the third planetary gear set (p3) and the sun gear of the fourth planetary gear set (p4), and is attachable to the housing (g) through a first brake (03), whereas the fourth shaft (4) is connected to the bar of the first planetary gear set (p1), is attachable to the housing (g) through a second brake (04) and, through a third clutch (48), is detachably connectable to the eighth shaft (8) connected to the ring gear of the second planetary gear set (p2) and whereas the output shaft (2) of the transmission is connected to the bar of the third planetary gear set (p3).. . ... Zf Friedrichshafen Ag

09/24/15 / #20150267779

Vehicle transmission in group construction

A motor vehicle transmission having main group and a range group that is connected downstream from the main group which has a planetary stage with transmission components. A first component couples an output shaft of the range group and a second component couples an output shaft of the main group. ... Zf Friedrichshafen Ag

09/24/15 / #20150266351

Mount for wheel suspensions of a motor vehicle

A mount for wheel suspensions in a motor vehicle is provided with a housing and a buffer element from elastic or resilient material, in particular rubber, arranged in the housing, wherein the housing comprises an upper portion connectable to the body of a vehicle, and a lower portion, wherein the buffer element is arranged between the upper portion and the lower portion, and the lower portion is attached to the upper portion through form fit or interference fit or snap fit.. . ... Zf Friedrichshafen Ag

09/17/15 / #20150260282

Method and control device thereto for operating a powertrain

Method for operating a drive train, which includes a drive unit (1), a converter (5) as the start-up element, an automatic transmission (2) and an output (3), whereas, after the start of the drive unit (1), the rotational speed of a turbine (7) of the converter (5) is monitored, whereas, if it is thereby determined that, within a defined first time frame after the start of the drive unit (1), the rotational speed of the turbine (7) of the converter (5) reaches or exceeds a first threshold value, a properly filled converter (5) is inferred, whereas, if, within the defined first time frame after the start of the drive unit (1), the rotational speed of the turbine (7) of the converter (5) does not reach or exceed a first threshold value, an improperly filled converter (5) or a converter that has run empty (5) is inferred.. . ... Zf Friedrichshafen Ag

09/17/15 / #20150260256

Torsional vibration damper and torsional vibration damping method

A torsional vibration damping arrangement has an input-side connection component, an output-side connection component, a first torque transmission path arranged between the input-side connection component and the output-side connection component, a second torque transmission path arranged parallel to the first torque transmission path between the input-side connection component and the output-side connection component ( ), a phase shifter arrangement and a torque adjusting arrangement ( ). The phase shifter arrangement is arranged in the first torque transmission path or second torque transmission path and is configured to generate a phase shift of rotational irregularities guided via the first torque transmission path relative to rotational irregularities guided via the second torque transmission path. ... Zf Friedrichshafen Ag

09/03/15 / #20150247551

Torsional vibration damping arrangement with power splitting

A torsional vibration damping arrangement for transmitting a rotation from an input side to an output side includes a first and second torque transmission path arranged between the input side and the output side. A coupling arrangement serves to superpose the first torque component and second torque component. ... Zf Friedrichshafen Ag

08/27/15 / #20150240790

Gearbox unit with gear carrier

A transmission unit (1), particularly for a wind power plant, which has a first planetary stage (2), on the drive input side, a second planetary stage (3) and a third planetary stage (4), on the drive output side, which are coupled with one another in such a manner that a torque from the drive input side can be divided between the first and the second planetary stages (2; 3) and recombined in the third planetary stage (4). The first, the second and the third planetary stages (2; 3; 4) have a common gearwheel carrier (20) which is mounted for rotation about a rotational axis of the transmission unit (1).. ... Zf Friedrichshafen Ag

08/20/15 / #20150233736

Measuring arrangement

A measurement assembly, in particular for a transmission, having a rotating assembly and having a sensor system that is stationary in relation to the rotating assembly, for detecting a direction of rotation and/or a rate of rotation and/or a rotational position and/or an axial position of the rotating assembly, wherein the rotating assembly has an encoding comprised of holes and/or projections on an axial end surface and/or on a radial circumferential surface, which moves in relation to the stationary sensor system when the rotating assembly rotates; and wherein the stationary sensor system has at least two sensor, disposed adjacently to one another, in which eddy currents can be induced, dependent on the rotational movement of the encoding thereon, wherein the direction of rotation and rate of rotation and the rotational position and the axial position of the rotating assembly can be determined from impulses of the measurement signals of the sensors, which are dependent on the induced eddy currents.. . ... Zf Friedrichshafen Ag

08/13/15 / #20150226324

Method for operation of a transmission unit

A method of operating a transmission unit, in particular a main transmission group of a dual-clutch transmission of multi-group design. The transmission unit has a first input shaft and at least one first shifting element, that is associated with the first input shaft, that can be disengaged and engaged for engaging a gear step, and a second input shaft and at least one second shifting element, that is associated with the second input shaft, that can be disengaged and engaged for engaging a gear step. ... Zf Friedrichshafen Ag

08/13/15 / #20150224994

Method for controlling a two-speed transmission with electric motor

A method for the control of a two-speed transmission with an electric machine in a vehicle that is operating in overdrive. The motor torque (m) produced by the electric machine is at first controlled independently of a driver's indication (f) in such manner that an approximately constant vehicle speed is reached.. ... Zf Friedrichshafen Ag

08/06/15 / #20150219478

Housing and housing part for a housing of a sensor for a vehicle transmission; sensor for a vehicle transmission; and method fot the production of a sensor for a vehicle transmission

A housing part for a sensor for a vehicle transmission is able to be connected at the sensor housing to an additional housing part along a joining area by means of a joining process. The housing part has at least one uniform wall thickness or adjusted optical material properties in the joining area.. ... Zf Friedrichshafen Ag

08/06/15 / #20150219211

Method and control device thereto for operating an automatic transmission

A method for operating an automatic transmission of a motor vehicle, whereas the automatic transmission features several interlockable shifting elements, involves determining, from the data made available from the driving operation of the motor vehicle, a change to consumption of the motor vehicle expected to be caused by an activated interlocking of the shifting elements and a change to the shifting dynamics of the motor vehicle expected to be caused by an activated interlocking of the shifting elements. The changes are evaluated such that, depending on the change to consumption and depending on the change to shifting dynamics, an interlocking of the shifting elements is permitted or not permitted.. ... Zf Friedrichshafen Ag

08/06/15 / #20150219193

Planetary gear and group transmission with planetary gear

Planetary gearsets (ps1, ps2) are coupled and arranged coaxially and radially offset relative to one another. Gearset (ps1) is arranged radially inside gearset (ps2) and each have a carrier on which planet gears (8, 12) respectively rotate. ... Zf Friedrichshafen Ag

08/06/15 / #20150217806

Crawler-type vehicle

A tracked vehicle (5) with a drive engine (1) for providing mechanical drive power, with a gearshift transmission (2) coupled to the drive engine (1) and with at least one steering gear system (6) coupled to the final drives (12, 12a) of each track (10, 10a). At least one pump (3) supplies hydraulic power to at least one hydraulic motor (4, 4a) of the steering gear system (6). ... Zf Friedrichshafen Ag

08/06/15 / #20150217774

Control device, drive train, method and program for reducing noise development in a drive train and/or for increasing inertia in an idle speed

A control device for a drivetrain of a vehicle, includes a drive engine, a starting element, and a coupling element. The coupling element brakes a secondary side when the control device receives an input signal indicating a switching off of the drive engine. ... Zf Friedrichshafen Ag

08/06/15 / #20150217533

Plastic component with a complex and bifurcated structure

A plastic component, with fiber reinforcement, for use in a motor vehicle. The plastic component comprises a number of fiber layers connected to one another by injection of plastic and by a pressing force. ... Zf Friedrichshafen Ag

07/30/15 / #20150211630

Method for improving the shifting quality at the start of the commissioning of a new automatic transmission or an automated transmission of a motor vehicle

Within of the method for improving the shifting quality at the start of the commissioning of a new automatic transmission or an automated transmission of a motor vehicle, a filling pressure adaptation is carried out by individual gearshifts. At least one adaptation counter is monitored, which indicates the number of the carried out filling pressure adaptations of at least one shifting element with one individual gearshift from the commissioning of the new automatic transmission or automated transmission. ... Zf Friedrichshafen Ag

07/30/15 / #20150211608

Gear unit for a compound transmission

A gear unit for a compound transmission has a planetary stage that couples an input and an output shaft for different transmission ratios. The planetary stage includes a sun gear, a ring gear and planet gears rotatably supported at a planet carrier. ... Zf Friedrichshafen Ag

07/30/15 / #20150211606

Adjustment mechanism

The invention relates to an adjustment mechanism that includes a set ring gears which are arranged coaxially towards a central axis and which each include a cylindrical toothing system, two eccentric wheels with beveloid gears which mesh with the cylindrical toothing systems of the ring gears, eccentric axes which are inclined at an angle towards the central axis, and a central shaft that is driven by a drive shaft onto which the eccentric wheels are mounted. The set of ring gears include a center ring gear that is circulating and two outer neighboring ring gears which are solidly fixed.. ... Zf Friedrichshafen Ag

07/23/15 / #20150208541

Arrangement of an electric control device on a circuit board

The present disclosure relates to a construction kit for a transmission element and an electric control device connected to the transmission element, wherein the electric control device comprises a circuit board equipped with electronic components, and a housing that at least partially encompasses the circuit board, wherein the transmission element has a recess, in which at least a portion of the housing for the electric control device engages.. . ... Zf Friedrichshafen Ag

07/09/15 / #20150192194

Start-up element with torsional vibration damper and vibration damper

A starting element has a torsional vibration damper coupleable with a drive with a drive-side input element rotatable against an action of a first spring element and a driven-side output component rotatable against the action of a second spring element arrangement around an axis of rotation. The driven-side output component is coupled with an output of the starting element. ... Zf Friedrichshafen Ag

07/09/15 / #20150192190

Rotational vibration damping arrangement for the drive train of a vehicle

A torsional vibration damping arrangement (10) for the drivetrain of a vehicle comprises an input region (50) to be driven in rotation around an axis of rotation (a) and an output region (55), and a first torque transmission path (47) and parallel thereto a second torque transmission path (48) which proceed from the input region, and a coupling arrangement (44) for superposing the torques guided via the torque transmission paths (47; 48), which coupling arrangement (44) communicates with the output region (55), and a phase shifter arrangement (43) for the first torque transmission path (47) for generating a phase shift of rotational irregularities guided via the first torque transmission path (47) relative to rotational irregularities guided via the second torque transmission path (48). The torsional vibration damping arrangement is formed with an axial distance between the phase shifter arrangement (43) and the coupling arrangement (44) to form a passage space for at least one driveshaft (39) of a vehicle.. ... Zf Friedrichshafen Ag

07/09/15 / #20150192114

Energy-recuperating fluid vibration damper

Energy-recuperating vibration damper having a cylinder in which a displacer executes a limited operating movement in a working chamber so that a pressurized fluid is supplied to a fluid motor which drives a generator. A compensation chamber compensates for a change in volume of the pressurized fluid. ... Zf Friedrichshafen Ag

07/02/15 / #20150184739

Method and device for actuating a shift element of an automatic transmission having a start-stop means

A method for actuating a shift element of an automatic transmission having a start-stop function and a pressure medium pump driven by an internal combustion engine. The shifting elements are clutches or brakes that can be actuated by a piston which is actuated for engagement via pressure supplied to a pressure space. ... Zf Friedrichshafen Ag

07/02/15 / #20150184725

Multi-speed gearbox

Multi-speed transmission comprising four planetary gear sets, eight rotatable shafts and six shifting elements, the sun gear of the first planetary gear set is connected to the third shaft, which is selectively coupleable or detachably connectable to the input shaft through a first clutch and is attachable to the transmission housing through a first brake, whereas the input shaft is, through a second clutch, selectively coupleable or detachably connectable to the fourth shaft connected to the bar of the third planetary gear set, which is attachable to the bar of the first planetary gear set through a second brake, which is coupled to the transmission housing, whereas the input shaft is connected to the sun gear of the fourth planetary gear set, whereas the eighth shaft is connected to the ring gear of the first planetary gear set, the sun gear of the second planetary gear set and the sun gear of the third planetary gear set, and the fifth shaft is connected to the bar of the second planetary gear set, the ring gear of the third planetary gear set and the ring gear of the fourth planetary gear set, whereas the sixth shaft is connected to the ring gear of the second planetary gear set and is, through a fourth clutch, selectively coupleable or detachably connectable to the output shaft of the transmission, which is, through a third clutch, selectively coupleable or detachably connectable to the seventh shaft connected to the bar of the fourth planetary gear set.. . ... Zf Friedrichshafen Ag

07/02/15 / #20150184724

Multi-speed gearbox

The multi-speed transmission comprises four planetary gear sets (p1, p2, p3, p4), eight rotatable shafts (1, 2, 3, 4, 5, 6, 7, 8) and six shifting elements (03, 04, 13, 14, 17, 26), whereas the sun gear of the first planetary gear set (p1) is connected to the third shaft (3), which is detachably connectable to the input shaft (1) through a first coupling (13) and is attachable to the housing (g) through a first brake (03), whereas the input shaft (1) is, through a second coupling (14), detachably connectable to the fourth shaft (4) connected to the bar of the third planetary gear set (p3), which is attachable to the bar of the first planetary gear set (p1) through a second brake (04), which is coupled to the housing (g), whereas the input shaft is (1) is, through a third coupling (17), detachably connectable to the seventh shaft (7) connected to the sun gear of the fourth planetary gear set (p4), whereas the eighth shaft (8) is connected to the ring gear of the first planetary gear set (p1), the sun gear of the second planetary gear set (p2) and the sun gear of the third planetary gear set (p3) and the fifth shaft (5) is connected to the bar of the second planetary gear set (p2), the ring gear of the third planetary gear set (p3) and the ring gear of the fourth planetary gear set (p4), whereas the sixth shaft (6) of the transmission is connected to the ring gear of the second planetary gear set (p2) and is, through a fourth coupling (26), detachably connectable to the output shaft (2) of the transmission connected to the bar of the fourth planetary gear set (p4).. . ... Zf Friedrichshafen Ag

07/02/15 / #20150184723

Multi-speed gearbox

Multi-speed transmission comprising four planetary gear sets eight rotatable shafts and six shifting elements, whereas the sun gear of the first planetary gear set is connected to the input shaft, which is connected to the sun gear of the third planetary gear set and, through a first clutch, is connectable to the eighth shaft connected to the carrier or bar of the fourth planetary gear set, whereas the eighth shaft is connectable to the third shaft through a second clutch, which is connected to the carrier or bar of the third planetary gear set and is attachable to the carrier or bar of the first planetary gear set through a first brake, which is coupled to the housing of the transmission, whereas the fourth shaft is connected to the sun gear of the second planetary gear set and is attachable to the carrier or bar of the first planetary gear set through a second brake, and the seventh shaft is connected to the ring gear of the first planetary gear set and, through a third clutch, is connectable to the fifth shaft connected to the ring gear of the second planetary gear set and the sun gear of the fourth planetary gear set, whereas the sixth shaft is connected to the carrier or bar of the second planetary gear set and the ring gear of the third planetary gear set, the output shaft is connected to the ring gear of the fourth planetary gear set and whereas a fourth, fifth or sixth clutch is provided, through the closing of which the second planetary gear set can be blocked.. . ... Zf Friedrichshafen Ag

07/02/15 / #20150183501

Boat drive

A boat drive (1) with an upper drive portion (3), arranged inside a hull (2) of the boat, and a pivoting lower drive portion (4), arranged outside the hull (2) of the boat. The boat drive (1) passes through an opening (6) in the bottom of the hull (2) of the boat, forming an annular gap (5) that surrounds a periphery of the boat drive, and a sealing arrangement (10) is arranged in the area of the annular gap (5). ... Zf Friedrichshafen Ag

06/25/15 / #20150180219

Apparatus and method for protecting a circuit of a vehicle and circuit

A device for protecting a circuit of a battery for a vehicle having an operating current direction, having a control device for providing a control signal, which represents a direction of the current flow through the circuit and a switching element that is designed to interrupt the circuit depending on the control signal in order to protect the circuit.. . ... Zf Friedrichshafen Ag

06/25/15 / #20150175206

Motor vehicle with a vehicle frame

A motor vehicle, in particular a utility vehicle (uv), with a vehicle frame and/or a sub-frame (2; 2a) that has contact surfaces (10; 10a) extending transversely and/or longitudinally relative to the driving direction (f) and are connection surfaces to other structural units (6; 7; 8; 12). The structural units are connected by connecting elements (11) that pass through the contact surfaces (10; 10a). ... Zf Friedrichshafen Ag

06/18/15 / #20150167838

Method for operating an automatic transmission

In a method for operating an automatic transmission (1), comprising multiple frictional-locking shifting elements (b, c, d, e) and at least one positive-locking shifting element (a, f), whereas, for the representation of a transmission ratio stage and thus a power flow through the automatic transmission (1), at least three shifting elements are closed, whereas, for a shifting process between two specified transmission ratio stages (“7” and “3”), at least two shifting elements (d, e) are opened and at least two shifting elements (b, f), including at least one positive-locking shifting element (f) and at least one frictional-locking shifting element (b), are closed, in the chronological sequence of the shifting process, the closing of the positive-locking shifting element (f) takes place only after all frictional-locking shifting elements (b) are closed.. . ... Zf Friedrichshafen Ag

06/18/15 / #20150167793

Multi-speed gearbox

The multi-speed transmission comprises four planetary gear sets (p1, p2, p3, p4), eight rotatable shafts (1, 2, 3, 4, 5, 6, 7, 8) and six shifting elements (03, 04, 37, 57, 58, 68), whereas the sun gear of the first planetary gear set (p1) is connected to the seventh shaft (7), which is connectable to the third shaft (3) through a first coupling (37), which is connected to the sun gear of the second planetary gear set (p2) and the bar of the third planetary gear set (p3), and is attachable to the housing (g) through a first brake (03), whereas the seventh shaft (7) is also connectable to the fifth shaft (5) through a second coupling (57), which is connected to the ring gear of the third planetary gear set (p3), and is connectable to the eighth shaft (8) connected to the bar of the second planetary gear set (p2) through a third coupling (58), which is, through a fourth coupling (68), connectable to the sixth shaft (6) connected to the sun gear of the third planetary gear set (p3) and the sun gear of the fourth planetary gear set (p4), whereas the input shaft (1) is connected to the bar of the first planetary gear set (p1) and the ring gear of the second planetary gear set (p2) and whereas the fourth shaft (4) connected to the ring gear of the fourth planetary gear set (p4) is attachable to the housing (g) through a second brake (04) and the output shaft (2) is connected to the ring gear of the first planetary gear set (p1) and the bar of the fourth planetary gear set (p4).. . ... Zf Friedrichshafen Ag

06/18/15 / #20150167789

Transmission

A transmission having a drive input shaft (an), a drive output shaft (ab), a housing (g), at least two planetary gearsets (pr1, pr2), and at least three shifting elements (a, b, c) whose selective engagement produces various transmission ratios between the drive input shaft (an) and the drive output shaft (ab), so that at least three gears can be obtained. To obtain a gear in each case, two shifting elements are engaged and a further shifting element is disengaged.. ... Zf Friedrichshafen Ag

06/18/15 / #20150167788

Transmission

A transmission which has drive input and output shafts, a housing, two planetary gearsets (pr1, pr2), and at least three shifting elements which produce three gears or ratios. A ring gear of the gearset (pr1) and the input shaft are connected for forming a first shaft, a carrier of gearset (pr1) and the output shaft are connected for forming a second shaft, a ring gear of gearset (pr2) forms a third shaft, sun gears of gearsets (pr1, pr2) are connected for forming a fourth shaft, and carrier of gearset (pr2) couples the housing. ... Zf Friedrichshafen Ag

06/11/15 / #20150159752

Device for actuating a locking mechanism

A device for actuating a locking mechanism, in particular for actuating a parking lock of a vehicle having an automatic transmission. The device comprises a piston which axially moves, a retaining device which is self-activating when the piston is in an axial position in which the locking mechanism is open to hold the piston in the axial position in which the locking mechanism is open, and an actuating device for actuating a release element, which deactivates the retaining device. ... Zf Friedrichshafen Ag

06/11/15 / #20150159750

Shifting lever device for actuating a vehicle gearbox

A gearshift lever assembly for actuating a vehicle transmission, having a mounting, a gearshift lever moveably supported on the mounting and which can be moved to predefined gearshift lever positions, a blocking device that can be moved to predefined blocking device positions, in which the gearshift lever can be locked to the mounting in a first gearshift lever position by means of the blocking device, a release mechanism, comprising a switch that responds to magnetic fields and a magnet, the spacing of which to one another can be varied by moving the blocking device such that, in the first gearshift lever position, the switch can be activated by the magnetic field of the magnet when the blocking device is in a first blocking device position, and at least one shielding element between the magnet and the switch can be placed in a positioned and removed from this position, by means of which the switch can be shielded from the magnetic field of the magnet in at least one other gearshift lever position of the predefined gearshift lever positions of the gearshift lever.. . ... Zf Friedrichshafen Ag

06/11/15 / #20150158440

Control device, auxiliary control device, and control system for a transmission of a vehicle, and method for assembling a control system for a transmission of a vehicle

A control device for a transmission in a vehicle comprises numerous connecting regions for electrically connecting transmission control elements to the control device. The control device is characterized in that a first connecting region of the numerous connecting regions is designed such that both a first connecting means for establishing an electrical connection to a vehicle-transmission interface can be connected to the first connecting region in an electrically functional manner, and, alternatively, a second connecting means for establishing an electrical connection to an accessory control device can be connected to the first connecting region in an electrically functional manner. ... Zf Friedrichshafen Ag

06/11/15 / #20150158361

Four-point link

A four-point link for the suspension of a rigid axle which has four bearing seats. Two bearing seats can be articulated on the axle and two can be articulated on the vehicle frame. ... Zf Friedrichshafen Ag

06/04/15 / #20150152960

Shift control method for an automated transmission

A shift control method for an automated transmission of a motor vehicle. The transmission has an input shaft that is connectable, via a separator clutch, to an engine driveshaft. ... Zf Friedrichshafen Ag

05/28/15 / #20150144454

Motor vehicle gearbox for a commercial vehicle

A motor vehicle transmission (2) for a commercial vehicle which has at least one transmission input shaft (8, 9) and at least one transmission stage, which on a drive output side serves to connect, in each case, a driveshaft (22) of an associated retarder (3) and can be linked into a force flow. To enable the at least one retarder (3) to be connected on the drive input side of the motor vehicle transmission (2), a drive input side of the at least one transmission stage is arranged on the at least one transmission input shaft (8, 9).. ... Zf Friedrichshafen Ag

05/21/15 / #20150141195

Multi-speed gearbox

Multi-stage transmission comprises four planetary gear sets, rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft which is connectable, via first clutch, to drive shaft and is couplable, via third brake, to housing. ... Zf Friedrichshafen Ag

05/21/15 / #20150135876

Transmission device with a hydraulic system including a pump device

A transmission device (2) with a hydraulic system (1)including a pump device (3) is described. A primary pressure circuit (7) and at least one additional pressure circuit (10) are able to be supplied with hydraulic fluid by the pump device (3). ... Zf Friedrichshafen Ag

05/07/15 / #20150127231

Method for executing of a gearshift

. . Method for executing a gearshift in an automatic transmission (1) with several shifting elements, whereas, upon the execution of the gearshift, a first frictional-locking shifting element (b, c, d, e) is open or switched off and a second positive-locking shifting element (a, f) is closed or switched on, whereas, if, upon the execution of the gearshift, an input torque of the automatic transmission is then smaller than a threshold value, in particular upon the execution of a coast downshift, after at least the partial opening of the frictional-locking shifting element (b, c, d, e) and after the release of the positive-locking shifting element (a, f), there is a monitoring of whether the positive-locking shifting element (a, f) is transferred into its end position, whereas, if it is then determined that the positive-locking shifting element (a, f) has not been transferred into its end position, a torque transferred by the previously at least partially open frictional-locking shifting element (b, c, d, e) initially increases, and thereby there is an additional monitoring of whether the positive-locking shifting element (a, f) is transferred into its end position, and whereas if it is then determined that, despite the increase in the torque transferred by the frictional-locking shifting element (b, c, d, e), the positive-locking shifting element (a, f) has not been transferred into its end position, the operating pressure of the positive-locking shifting element (a, f) is then increased.. . ... Zf Friedrichshafen Ag

05/07/15 / #20150126325

Multi-speed gearbox

A multi-stage transmission in which carrier of first gear set is connected to ring gear of fourth gear set, ring gear of first gear set and carrier of second gear set can be coupled to housing via first brake or to drive shaft via first clutch. Sun of first gear set and sun of second gear set can be coupled to housing via second brake. ... Zf Friedrichshafen Ag

05/07/15 / #20150126324

Multi-stage power-shift transmission

Power-shiftable multi-speed transmission in planetary design for a vehicle for an arrangement between an input shaft (an) and an output shaft (ab), characterized in that the multi-speed transmission features two parallel shaft trains (ws1, ws2), six shifting elements (k1, k2, k3, k4, b1, b2), at least two spur gear stages (sts1, sts2) and three planetary gear sets (ps1, ps2, ps3), each with one sun gear (so1, so2, so3), one ring gear (ho1, ho2, ho3) and one planetary carrier with several planetary gears, whereas the planetary carrier is consolidated into one bar (st1, st2, st3), and that the two shaft trains (ws1, ws2) are connectable to each other through at least two spur gear stages (sts1, sts2), whereas, through a selective intervening of the six shifting elements (k1, k2, k3, k4, b1, b2), different transmission ratio relationships can be brought out between the input shaft (an) and output shaft (ab), such that a multitude of forward gears, in particular nine forward gears, and at least one reverse gear, are able to be realized.. . ... Zf Friedrichshafen Ag

05/07/15 / #20150123366

Adjustment device for a vehicle chassis, comprising a sliding pad

An adjustment device (1) for a chassis of a vehicle. The adjustment device includes at least one spindle (2), at least one slide-block (3), an axial guide (5) for the slide-block (3) and at least one connecting element (4, 17). ... Zf Friedrichshafen Ag

05/07/15 / #20150122981

Selector lever arrangement for operating a transmission in a motor vehicle

A selector lever arrangement for operating a transmission in a motor vehicle with a mounting fixture, a selector lever which is mounted at the fixture in such a way that it can be moved into the designated selector lever positions and an optical detection device for the selector lever position, which includes a carrier, several optical sensors which are arranged on the carrier, an optical deflector, at least one self-luminous light source that is arranged on the carrier, by means of which light can be directed onto the sensors via the deflectors, and a coding element equipped with an optical coding that is arranged within the optical path, which can be shifted into the designated coding positions by means of moving the selector lever, whereby the coding element is intended to be allocated between the sensors and the deflector that is made in form of a light guiding element, which is arranged at the carrier.. . ... Zf Friedrichshafen Ag

05/07/15 / #20150122605

Rotary vibration damping arrangement

A torsional vibration damping arrangement, comprises at least one deflection mass pendulum unit with a rotatable carrier, a deflection mass, a deformable restoring element, a supporting element which provides the carrier supporting region, wherein a distance between the carrier supporting region and the deflection mass supporting region can be varied through movement of the supporting element at the carrier, and the supporting element is preloaded in direction of a radially inner base position and is displaceable radially outward against the preloading under centrifugal force action wherein that a radial distance of the supporting element from the base position increases degressively with increasing centrifugal force action at least in one rotational speed range and/or in that a spring stiffness of the restoring element increases progressively at least in one rotational speed range through centrifugal force-induced displacement of the supporting element.. . ... Zf Friedrichshafen Ag

04/30/15 / #20150120156

Method for controlling a dual clutch transmission

A method of controlling a dual-clutch transmission having two partial transmissions that can be connected to a drive engine such that a target gear, in a respective load-free partial transmission to be engaged following the currently active gear, can be preselected. To reduce the energy consumption caused by transmission losses, the method includes the steps of: determining a possible target gear, determining overall transmission losses for both when a target gear is preselected, and when a target gear is not preselected, determining whether the overall transmission loss is greater when a target gear is preselected or when no gear is preselected, deciding whether a target gear should or should not be preselected using the overall transmission loss determined as a criterion, and implementing measures that correspond to the decision reached.. ... Zf Friedrichshafen Ag

04/30/15 / #20150120114

Method and device for actuating a mobile work machine

A method of controlling a mobile work machine having a reversing gearbox. The driving direction reversal is initiated by detecting a driving direction reversal command. ... Zf Friedrichshafen Ag

04/30/15 / #20150119188

Multi-speed gearbox

A four-stage multi-stage transmission in which the carrier (12) of the first planetary gear set (1) is connected with a sun gear (41) of the fourth planetary set, a ring gear (43) of the fourth planetary gear set (4) is connected with the output shaft (71), a ring gear (13) of the first planetary gear set (1) and a carrier (22) of the second planetary gear set (2) can be coupled with the housing (72), via a first brake (51). A sun gear (11) of the first planetary gear set (1) can be coupled with the housing (72), via a second brake (52), and the ring gear (43) can be coupled with the sun gear (41), respectively, of the fourth planetary gear set (4) via a first clutch (61).. ... Zf Friedrichshafen Ag

04/30/15 / #20150119187

Multi-speed gearbox

Multi-stage transmission comprising four planetary gear sets, eight rotatable shafts and six shift elements. Sun of first set is connected to eighth shaft connected to sun of second set and is connectable, via third clutch, to drive shaft. ... Zf Friedrichshafen Ag

04/30/15 / #20150114788

Component, apparatus and method for calculating the axial position of the component and for calculating the rotational speed of the component

A component (2), in particular a shifting element of a transmission device, which rotates around a central axis (14) and is adjustable in an axial direction (y), with an encoder contour (5) revolving on the circumference of the component (2) and provided for interacting with a sensor device (4), is described. The encoder contour (5) features at least one area (7) provided for calculating the position of the component (2) in an axial direction (y), whereas a surface (11) of the first range (7) in an axial direction (y) is designed with a varying radial extension in respect of the central axis (14). ... Zf Friedrichshafen Ag

04/30/15 / #20150114497

Hydraulic system of a transmission device with a lubrication circuit

A hydraulic system (1) of a transmission device (2) with a lubrication circuit (4), which is able to be supplied with hydraulic fluid downstream of a cooling device (18) for cooling and lubrication, is described. One part of the volume flow of hydraulic fluid led through the cooling device (18) is able to be discharged downstream of the cooling device (18) and upstream of the lubrication circuit (4) in the direction of a hydraulic fluid reservoir (13). ... Zf Friedrichshafen Ag

04/23/15 / #20150112559

Method for executing interleaved gearshifts

Method for executing gearshifts interlaced into each other in an automatic transmission with several shifting elements, whereas, upon the execution of gearshifts interlaced into each other, first shifting elements are open or switched off, and second shifting elements are closed or switched on, namely in such a manner that, as a second shifting element, at least one positive-locking shifting element is closed, whereby, with the activation of a positive-locking shifting element to be closed, there is a monitoring of whether, within a time interval after the activation of the particular positive-locking shifting element to be closed, the transmission ratio of the automatic transmission is within the tolerance band and is thus constant, and/or whether an end position sensor of the particular positive-locking shifting element to be closed detects a completely engaged position of the positive-locking shifting element to be closed, whereby, if at least one of these conditions is met, a proper closing of the particular positive-locking shifting element to be closed is detected, whereby if none of these conditions is met, an improper closing of the particular positive-locking shifting element to be closed is detected, and a substitute measure is initiated.. . ... Zf Friedrichshafen Ag

04/23/15 / #20150111689

Multi-speed gearbox

A multi-speed transmission in which a sun gear of a fourth planetary gear set is connected with the housing in a non-rotatable manner, a ring gear of a first planetary gear set is permanently connected with a ring gear of the fourth planetary gear set, a sun gear of the first planetary gear set and a sun gear of a second planetary gear set can be coupled with the housing, via a first brake, a carrier of the first planetary gear set can be coupled with the housing, via a second brake, and the output shaft can be coupled with a carrier of the fourth planetary gear set, via a first clutch. Variations of other couplings within the multi-speed transmission forms a set of transmissions having similar properties.. ... Zf Friedrichshafen Ag

04/23/15 / #20150111688

Multi-speed gearbox

Nine-speed multi-stage transmission with four planetary gear sets, rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft which is couplable, via third brake, to housing and is connectable, via first clutch, to drive shaft which is connectable, via second clutch, to seventh shaft which is connected to ring of third set and carrier of second set. ... Zf Friedrichshafen Ag

04/23/15 / #20150111687

Multi-speed gearbox

Multi-stage transmission comprising four gear sets, eight rotatable shafts and six shift elements. Eighth shaft is connected to suns of first and second sets and is connectable, via third clutch, to drive shaft. ... Zf Friedrichshafen Ag

04/23/15 / #20150107954

Device for releasably connecting two component parts with at least one shaft

A device used to achieve a releasable connection between two components and at least one shaft on which the components are rotatably mounted. A switching element that is mounted on the shaft can be coupled to one of the components in a non-rotatable fashion by relative motion in the axial direction of the shaft between the components and the switching element. ... Zf Friedrichshafen Ag

04/23/15 / #20150107408

Hybrid drive for a vehicle

A hybrid drive of a motor vehicle includes a combustion engine, an electric machine, a gear box, and a superimposed transmission. The gearbox includes an input shaft, and first and second output shafts, and the input shaft is connected to the first and second output shafts via switchable spur gear stages. ... Zf Friedrichshafen Ag

04/16/15 / #20150105986

Method for detecting the origin position of a shift element

A method for recording an initial position of at least one positive-locking shifting element (a, f) of a transmission of a vehicle is proposed, whereas an initial position of the shifting element (a, f) is determined and assigned depending on a recorded operating pressure curve (iii) for the actuation of the shifting element (a, f).. . ... Zf Friedrichshafen Ag

04/16/15 / #20150104245

Securing element for securing an axial stop element on a shaft

The invention relates to a securing element for securing an axial stop element, in particular a c-clip, radially attached to a shaft. The securing element is designed in such a manner that it is attachable to the shaft and features at least one spring-elastic axle journal, which, in the attached state of the securing element, it exerts a radial holding force for securing the axial stop element (5). ... Zf Friedrichshafen Ag

04/16/15 / #20150101451

Torsional vibration deletion means as well as torsional vibration damper for a vehicle drive-line

The invention relates to a torsional vibration absorber, comprising a rotatable support disc and several pendulum masses, which are hinged in an oscillating manner on the support disc in particular and are thereby able to move relative to the support disc along the associated pendulum rails. In order to create a torsional vibration absorber, through which several excitation orders are able to be absorbed with a simultaneously compact structure, the pendulum masses combine at least one pair of pendulum masses, with which the two associated pendulum masses are coupled to each other through at least one intermediate spring element. ... Zf Friedrichshafen Ag

04/09/15 / #20150098749

Ball and socket joint for a vehicle

A ball joint for a vehicle, with a ball pin that has a joint ball, a joint housing that encloses the joint ball and is provided with a pin opening, in which the joint ball of the ball pin is fitted and able to move. The ball pin extends out of the joint housing through the pin opening. ... Zf Friedrichshafen Ag

04/09/15 / #20150098193

Covering device for a contacting portion of a printed circuit board, control system for a mechatronic module and method for assembling a control system

A cover device for a contact section of a printed circuit board for a mechatronics module is proposed. The printed circuit board includes a contact section which has at least one connection hole, for connecting an electrical connection element to the printed circuit board. ... Zf Friedrichshafen Ag

04/02/15 / #20150094923

Method to control the torque transfer rate of a clutch, clutch control unit for a clutch and transmission with such a control unit

The disclosure relates to a procedure for controlling torque transmission rate of a clutch. The clutch is in connection with a transmission and an electric machine, configured to receive torque from the electric machine by a couple half of the clutch, and configured to produce a torque guiding connection between a combustion engine and the transmission. ... Zf Friedrichshafen Ag

04/02/15 / #20150094920

Method for damping vehicle drive train vibrations

A method for assuring that a signal, for damping drive train vibrations, is overlaid during the same time period as the drive train vibration, and not delayed by one time period. The method comprises the steps of continuously calculating a correction torque for the vibration damping, determining, through a parallel signal path, whether the vibration damping is to be activated or deactivated, and overlaying the correction torque to the drive train vibration, if the necessity arises for activation of the vibration damping.. ... Zf Friedrichshafen Ag

04/02/15 / #20150094185

Multi-speed gearbox

A four-stage multi-stage transmission, in which a ring gear of a first planetary gear set is connected to a sun gear of a fourth planetary gear set, a ring gear of the fourth planetary gear set is connected to the output shaft, a sun gear of the first planetary gear set and a carrier of a second planetary gear set are couplable to the housing via a first brake, a carrier of the first planetary gear set is couplable to the housing via a second brake, the drive shaft is couplable to the carrier of the fourth planetary gear set via a first clutch, and a ring gear is couplable to the sun gear of the fourth planetary gear set via a second clutch. Adjustment of further couplings, within the multi-stage transmission, facilitates a set of gears having similar properties.. ... Zf Friedrichshafen Ag

03/26/15 / #20150087472

Multi-speed gearbox

Transmission comprising four planetary gear sets, shafts and six shift elements. Sun of first set is connected to fifth shaft, which is connected to sun of second set and is couplable to housing by second brake. ... Zf Friedrichshafen Ag

03/26/15 / #20150087471

Multi-speed gearbox

Nine gear transmission with four planetary gear sets, rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft connected to sun of second set and is couplable to housing by third brake. ... Zf Friedrichshafen Ag

03/26/15 / #20150087469

Multi-stage power-shift transmission

A power shiftable multi-stage transmission of a planetary design and disposed between an input drive shaft and an output shaft for a vehicle. The multi-stage transmission has two parallel shaft trains, six shift elements, at least two spur gear stages and three planetary gear sets. ... Zf Friedrichshafen Ag

03/26/15 / #20150087468

Multi-speed gearbox

Multi-stage transmission comprising four gear sets, shafts and shift elements. Sun of first set is connected to eighth shaft connected to sun of second set and is connectable, via third clutch, to drive shaft. ... Zf Friedrichshafen Ag

03/19/15 / #20150080180

Method for synchronizing a form-fitting shifting element in a gearshift in overrun operation with positive motor intervention or positive speed guidance

Within the framework of the method for implementing the synchronization of a positive-locking shifting element for a gearshift in thrust mode with a positive engine control intervention or a positive rotational speed control, the input signal for the transmission control for the traction-thrust detection is switched over to traction, such that the gearshift in the transmission control proceeds as a gearshift in traction mode.. . ... Zf Friedrichshafen Ag

03/19/15 / #20150080169

Powershift transmission

An automatic powershift transmission having a variable-speed transmission (2) with a transmission input shaft (4), a transmission output shaft (5). A plurality of gearsets (rs1, rs2, rs3) and a number of shifting elements (a, b, d, e, f). ... Zf Friedrichshafen Ag

03/19/15 / #20150080168

Multi-speed gearbox

A four-stage multi-stage transmission in which carrier of first gear set and ring gear of fourth gear set can be coupled to housing via first brake or to drive shaft via first clutch. Sun of first gear set can be coupled to housing via second brake. ... Zf Friedrichshafen Ag

03/19/15 / #20150080167

Transmission device and drive train of a vehicle

A vehicle drive train and a transmission device (11) with a differential transmission device (13), which is in operative connection with a first shaft in the area of a differential cage (15), and with two differential shafts (12), of which one is able to be coupled with an output shaft (14) through a shifting element (16) that is able to be actuated through an actuator device (17) is described, in accordance with the invention, one shifting element half (18) of the shifting element (16) features a sliding element (19) that is connected in a torque-proof manner to the differential cage (15) and is movable from the actuator device (17) axially in respect of the differential cage (15), through which, through the actuation on the side of the actuator device, a positive-locking connection is able to be produced between the differential shaft (12) and the output shaft (14) in the area between an area (20) of the differential shaft (12) that is axially movable together with the sliding element (19), which is connected in a torque-proof manner to the differential shaft (12), and an area (21) of the output shaft (14), whereas the movable area (20) of the differential shaft (12) is able to be twisted in respect of the sliding element (19).. . ... Zf Friedrichshafen Ag

03/19/15 / #20150080164

Multi-stage power-shift transmission

A power-shiftable multi-stage transmission in planetary design, between a drive shaft and an output shaft, in particular an automatic transmission for a vehicle. The multi-stage transmission has two parallel shaft sections, six shift elements, at least two spur-gear stages and three planetary gear sets, each of which has one sun gear, one ring gear, and one planet carrier having a plurality of planetary gears. ... Zf Friedrichshafen Ag

03/19/15 / #20150077146

Method and device to determine a resistance value of a plurality of operating devices and method and device to control a plurality of operating devices

A method for determining a resistance value of a plural number of actuating devices (310) is suggested. The method features a step of the application of a test current pulse at each of the plural number of actuating devices (310). ... Zf Friedrichshafen Ag

03/19/15 / #20150075324

Hybrid drive of a motor vehicle and method for operating same

A hybrid drive of a motor vehicle has an internal combustion engine, an electric machine, and a transmission. The transmission is a multi-stage shifting transmission including two subtransmissions, each of which has a separate input shaft and a common output shaft. ... Zf Friedrichshafen Ag

03/19/15 / #20150075307

Method and control device for resolving a tooth-on-tooth position

A method of eliminating a tooth-on-tooth position at an interlocking shifting element. The tooth-on-tooth position is eliminated by operating at least one actuator such that, during a first operating attempt the actuator is operated using a defined target parameter, after which it is checked whether as a result of the operation of the actuator the tooth-on-tooth position has been eliminated. ... Zf Friedrichshafen Ag

03/12/15 / #20150069688

Vibration damper for a motor vehicle

A vibration damper for a motor vehicle includes at least one cylinder tube with a longitudinal extension axis and a support spring, wherein the support spring has a first end portion and a second end portion, the support spring surrounds the cylinder tube in circumferential direction and is axially supported by the first end portion indirectly at a supporting device of the motor vehicle with respect to the longitudinal extension axis of the cylinder tube, and wherein the support spring is axially supported by its second end portion at the cylinder tube of the vibration damper. The cylinder tube has a spring disk which is formed integral with the cylinder tube, is formed out of the cylinder tube, and has a supporting surface for an end coil of the support spring.. ... Zf Friedrichshafen Ag

03/12/15 / #20150068344

Claw shifting element comprising a sliding sleeve for an automatic transmission of a motor vehicle

A claw shifting element (1) comprising a sliding sleeve (3), with which the sliding sleeve (3) is axially fixed in its two end positions by frictional locking, is proposed.. . ... Zf Friedrichshafen Ag

03/05/15 / #20150065294

Drive unit for a vehicle, and operating method therefor

A drive device for a vehicle having a combustion engine and a multistage manual transmission having first and second sub-transmissions, each of which has a separate input shaft. A first input shaft of the first sub-transmission couples, via a first clutch, the combustion engine or is assigned an electrical machine. ... Zf Friedrichshafen Ag

03/05/15 / #20150065290

Multi-stage transmission

A two-step multi-step transmission in which a first planetary gear set (1) has two radially nested transmission sub-assemblies. The first planetary gearset has an inner sun gear (11), inner planetary gears (12), an outer sun gear (14) which is rotationally fixed to the inner ring gear (13), outer planetary gears (15), an outer ring gear (16), and a carrier (17) on which the inner planetary gears (12) and the outer planetary gears (15) are mounted. ... Zf Friedrichshafen Ag

03/05/15 / #20150065286

Driven axle for a motor vehicle

Drivable axle (1), in particular a rigid axle, for a motor vehicle, the axle (1) featuring one differential gear (2), at least one gear bearing, at least one axle tube (5, 6) and at least one axle shaft (5a, 6a), whereas the differential gear (2) features a volume (v1) for lubricant separate from the at least one axle tube (5, 6). Thereby, the differential gear (2) is sealed at the least one axle tube (5, 6) by using a gap-type seal (12).. ... Zf Friedrichshafen Ag

03/05/15 / #20150061647

Method for calibrating a measuring device for inspecting surfaces on the basis of barkhausen noises for a specified component geometry

A method for enhancing inspection of components of specific geometry based on barkhausen noises. The method includes specifying a first calibration curve that is independent of the component geometry, which describes the relationship between surface hardness values and measured barkhausen noise signals. ... Zf Friedrichshafen Ag

03/05/15 / #20150060219

Hydrodynamic retarder

A hydrodynamic retarder having a rotor (2) and a stator (1). The rotor (2) and the stator (1) are arranged radially relative to one another. ... Zf Friedrichshafen Ag

03/05/15 / #20150059523

Gearwheel set, in particular for a gyroplane

The present disclosure relates to a gear set, especially for a rotary-wing aircraft, with two intermeshing gear wheels, each mounted on a respective shaft. In particular, in a normal section, the gear wheels of the gear set have different pressure angles on a drive side from the pressure angles on a freewheel side at the beginning of an engagement.. ... Zf Friedrichshafen Ag

02/26/15 / #20150057900

Method for cutting off a gearshift in which at least one form-fitting shifting element is participating, in an automatic transmission of a motor vehicle

Within the framework of a method for terminating a gearshift for an automatic transmission for a motor vehicle, at which at least one positive-locking shifting element is involved, after the initiation of the gearshift, there is an evaluation of the continuous signals of at least one control unit of the vehicle, which affect the engine torque and thus the turbine speed gradient, whereas, based on the evaluation of the signals, an upcoming change to the turbine speed gradient that exceeds a first predetermined threshold value or falls short of a second predetermined threshold value is detected, and, upon the detection an upcoming change to the turbine speed gradient that exceeds the first predetermined threshold value or falls short of the second predetermined threshold value, the gearshift is terminated.. . ... Zf Friedrichshafen Ag

02/26/15 / #20150054501

Method for inspecting a component on the basis of barkhausen noises

A method of inspecting a component (1) on the basis of barkhausen noises in which a plurality of barkhausen noise signals are processed, which have been or are determined at measurement positions (ps1, ps2, . . ... Zf Friedrichshafen Ag

02/26/15 / #20150053522

Starter and retarder element, and method for operating a starter and retarder element

A start-up and retarder element having a hydrodynamic transfer element (5, 5′) and a planetary gear set (4). The hydrodynamic transfer element (5, 5′) has at least one first functional wheel (11, 11′) and one second functional wheel (12, 12′). ... Zf Friedrichshafen Ag

02/19/15 / #20150051044

Multi-speed gearbox

Transmission with four gear sets, shafts and six shift elements. Sun of first set is connected to fifth shaft, which is couplable to housing by second brake and connectable by first clutch to driveshaft, which is connectable to seventh shaft connected by second clutch to carrier of second set and is connectable by third clutch to eighth shaft connected to carrier of first set and to sun of second set. ... Zf Friedrichshafen Ag

02/19/15 / #20150051043

Multi-ratio transmission

A multi-stage transmission with eight forward and one reverse gear, including drive and output shafts, planetary gearsets, gear stage, shift elements and shafts. The drive shaft couples the carrier of gearset (p1) and can couple shaft (5) via clutch (15). ... Zf Friedrichshafen Ag

02/19/15 / #20150050153

Ship drive

A ship drive having a drive machine, a transmission, a propeller shaft that is driven by the transmission and a mounting arrangement by which the ship drive can be secured to a hull of a ship. The drive machine and the transmission are connected to one another by a connecting flange and are arranged inside the hull of the ship. ... Zf Friedrichshafen Ag

02/19/15 / #20150050148

Rotor blade control device

A rotor blade control device for a helicopter, comprising a swash-ring, said swash-ring comprising a non-rotating component of the swash-ring, coupled in a non-rotatable manner to the helicopter, a rotating component of the swash-ring, at least three actuators disposed around a rotor shaft axis of the helicopter, a coupling means between the actuators and the non-rotating component of the swash-ring. The coupling means can be adjusted in terms of its pitch, for changing the position of a swash-ring coupling point on the non-rotating component of the swash-ring along the rotor shaft axis by the actuator, by means of a control shaft, in order to adjust the rotor blades. ... Zf Friedrichshafen Ag

02/19/15 / #20150048573

Inwardly tensioning plain compression ring

An inwardly tensioning plain compression ring for sealing a rotating part with respect to a fixed part. The plain compression ring separates a positive pressure region from a low pressure area and has, in reference to the circumference, two opposite ends, designed as a joint or lock and which can be connected. ... Zf Friedrichshafen Ag

02/19/15 / #20150047731

Externally fitted control device and hydraulic control module for an externally fitted control device

The externally fitted control device includes an electronic control module (1), a hydraulic control module (2) and a common control enclosure (3). The hydraulic control module (2) has electromagnetic actuators (10) and control pistons (14) which are positioned on top of one another to result in a compact design which is safe to operate and can be manufactured economically.. ... Zf Friedrichshafen Ag

02/12/15 / #20150047016

Identification technique

. . A technique for user identification based on a user input. As to one aspect of the technique, a device (100) comprises a pattern generator (102), a user interface (104), and a transmitter (106). ... Zf Friedrichshafen Ag

02/12/15 / #20150046362

Delivery forecasting system

Described are a system and methods for forecasting a delivery time and updating the forecasted delivery time of an object when a delay occurs. The delay of delivery may be determined based on information of a delivery vehicle provided by an on-board device or delivery status of the object stored in a delivery server. ... Zf Friedrichshafen Ag

02/12/15 / #20150046048

Method for determination of at least a drag torque effective on the input side of an automatic motor vehicle transmission

A method of determining at least one drag torque acting on the input side of an automatic transmission, such that prior to the determination a separator clutch located between the transmission and an engine is disengaged. To be able to carry out the determination regardless of the type of transmission concerned, also prior to the determination, the transmission is shifted to neutral and subsequently the drag torque is calculated when the engine is deactivated. ... Zf Friedrichshafen Ag

02/12/15 / #20150046046

System for detecting vehicle driving mode and method of conducting the same

The present application is related to an vehicle driving mode detection system. The system may comprise a sensor interface and a processor. ... Zf Friedrichshafen Ag

02/12/15 / #20150045174

Multi-stage planetary vehicle transmission

A multi-gear transmission of a vehicle having a housing in which four planetary gearsets and a plurality of shafts and shifting elements are arranged. The drive input shaft can couple the sun gears of gearsets (rs1, rs3) and the carrier of gearset (rs1) and can be connected indirectly to the carrier of gearset (rs2). ... Zf Friedrichshafen Ag

02/12/15 / #20150045173

Multistage transmission

A four-stage multi-gear transmission in which the carrier of a fourth gearset (4) is connected in a rotationally fixed manner to a housing (72), a ring gear of a first gearset (1) is connected rotationally fixed to a sun gear (41) of the fourth gearset (4), a drive input (70) can couple, via a first clutch (61), a sun gear (11) of the first gearset (1), a ring gear (42) of the fourth gearset (4) can couple, via a second clutch (62), a drive output (71), a carrier (13) of the first gearset (1) can couple, via a first brake (51), a housing (72) and the sun gear (11) of the first gearset (1) can couple, via a second brake (52), the housing (72). Varying other couplings within the multi-gear transmission can provide a range of transmissions with similar properties.. ... Zf Friedrichshafen Ag

02/12/15 / #20150042482

Non-battery operated container alert system

A container alert system may include an actuator with a generator that creates electrical energy upon activation of the actuator. The system may utilize the electrical energy to transmit a signal to a receiver based on characteristics of the container, such as use of the container, volume of the material in the container, available capacity of the container, material being added to the container, and location of the container.. ... Zf Friedrichshafen Ag

02/12/15 / #20150042479

System and method for early weather alert

An early alert system may comprise a data processing unit and a plurality of monitoring units distributed in a defined area. Each of the plurality of monitoring units is configured to detect physical information associated with a fluid. ... Zf Friedrichshafen Ag

02/12/15 / #20150042472

Non-battery powered wireless security system

A non-battery powered wireless security system may include one or more sensors. Each sensor may include a switch and a generator that creates electrical energy upon activation or motion of the switch in response to a change in condition of the location of the sensor. ... Zf Friedrichshafen Ag

02/12/15 / #20150042470

Non-battery operated personal emergency response system

A personal emergency response system may include an actuator with a generator that creates electrical energy upon activation or motion of the switch. The system may utilize the electrical energy to transmit an emergency alert signal to a receiver based on characteristics of the switch, such as movement of the switch, location of the switch, and time of sending the signal.. ... Zf Friedrichshafen Ag

02/12/15 / #20150042059

Rubber bearing connection

A suspension arm (1) for a vehicle including a bearing (4) and a journal (2). The bearing (4) has at least one elastic sub-element (4c) and the bearing (4) is arranged on the journal (2) of the suspension arm (1) and encloses the journal (2). ... Zf Friedrichshafen Ag

02/12/15 / #20150040840

Non-battery powered animal tracking system

An animal tracking system may include an actuator with a generator that creates electrical energy upon motion of the actuator. The system may utilize the electrical energy to transmit a signal to determine the location of an animal. ... Zf Friedrichshafen Ag

02/12/15 / #20150040696

Drive converter device and axle transmission device with a drive converter device

A drive converter device (19) in accordance with the invention for converting a rotational drive of a drive device (20) into a translational actuation movement for a shifting element (18) of a transmission unit (8) with a cam disk (21) that is rotatable and adjustable in an axial direction is described. The cam disk (21) is formed with track areas (22, 23) with defined gradients, in the area of which the cam disk (21) is in operative connection with at least one fixed-housing element (24 to 26), such that the cam disk (21) is translationally adjustable in respect of the elements (24 to 26) through the rotational movement of the cam disk (21), depending on the gradients of the track areas (22, 23). ... Zf Friedrichshafen Ag

02/05/15 / #20150039182

Method for decoupling a power take-off of a motor vehicle transmission while driving a motor vehicle

A method of decoupling a power take-off drive of a motor vehicle transmission during travel of a motor vehicle in which a form-locking shift element of the power take-off drive is controlled for disengaging the power take-off drive. To implement reliable decoupling without interrupting travel of the motor vehicle, if disengagement of the shift element initially did not occur, control of the shift element is immediately implemented the next time a separating clutch, placed between the motor vehicle transmission and a drive engine of the motor vehicle, is actuated and/or a connection of the shift element toward an output side of the motor vehicle transmission is interrupted, over the course of a subsequent gear shift in the motor vehicle transmission. ... Zf Friedrichshafen Ag

02/05/15 / #20150033905

Control pedal, in particular for a motor vehicle

The invention relates to a control pedal (1), in particular for a motor vehicle. The control pedal (1) is characterized by a pedal arm (3) which has in the lengthwise direction (5) at least one organo-sheet reinforcement part (7) with a cross-sectional area (17) that is open perpendicular to the lengthwise direction (5) of the pedal arm (3). ... Zf Friedrichshafen Ag

01/29/15 / #20150032346

Method for controlling an automated motor vehicle transmission

A method of controlling an automated motor vehicle transmission. A current driving resistance is taken into account when selecting a target gear to be engaged as part of a shifting process. ... Zf Friedrichshafen Ag

01/29/15 / #20150031502

Method for operating a drive train and control device

A method for operating a drive train of a hybrid vehicle with a hybrid drive comprising at least an electric machine and an internal combustion engine, wherein an automated manual transmission is connected between the internal combustion engine and an output, wherein the electric machine is coupled via a friction clutch to a shaft of the automated manual transmission. Wherein in the automated manual transmission, by interruption of the drive torque provided by the hybrid drive on the output, shifts are executed in such a way that in a first phase the drive torque provided at the output is first reduced, subsequently in a second phase the actual gear shift is executed and following that in a third phase drive torque is built up at the output. ... Zf Friedrichshafen Ag

01/29/15 / #20150031498

Multi-ratio transmission

A multistage transmission with eight forward and one reverse gear, including an input and output shafts, planetary gearsets, gear stages, shift elements and shafts. The input shaft couples the carrier of gearset (p1) and, via clutch (15), can couple shaft (5) that couples the sun gear of gearset (p3) and, via clutch (58), can couple shaft (8) connected to the ring gear of gearset (p2). ... Zf Friedrichshafen Ag

01/29/15 / #20150031497

Multi-ratio transmission

A multi-stage transmission with eight forward and one reverse gear, including input and output shafts, planetary gearsets, gear stages, shift elements and shafts. Input shaft couples the carrier of gearset (p1) and, via clutch (15), can couple shaft (5) that couples the ring and sun gears respectively of gearsets (p2, p3). ... Zf Friedrichshafen Ag

01/29/15 / #20150031495

Multi-ratio transmission

A multi-ratio transmission with nine forward and one reverse gear. Sun gears of first and third gearsets (p1, p3) are couplable, via brake (04), a housing. ... Zf Friedrichshafen Ag

01/29/15 / #20150031493

Multi-ratio transmission

A multi-stage transmission having eight forward and one reverse gear includes planetary gearsets, shafts and shift elements. The sun gear of gearset (p1) couples shaft (3), which can couple, via brake (03), the housing and couples the ring gear of gearset (p3). ... Zf Friedrichshafen Ag

01/22/15 / #20150025761

Magnetic field sensor, actuating device and method for determining a relative position

A magnetic field sensor consists of a transmitter device for producing a magnetic field and a detecting device for detecting the magnetic field. The transmitter device and the detecting device are arranged in such a way that they can move in relation to each other. ... Zf Friedrichshafen Ag

01/15/15 / #20150018166

Multi-speed planetary vehicle transmission

A multi-gear planetary transmission for a vehicle having four planetary gearsets (rs1, rs2, rs3, rs4), a plurality of shafts (i, ii iii, iv, v, vi, vii viii, ix) and six shifting elements (a, b, c, d, e, f) which can be actuated to obtain a plurality of gears. At least the fourth planetary gearset (rs4) is a plus planetary gearset, the first shaft (i) is the drive input (an) which is connected to the planetary carrier (pt1) of the first planetary gearset (rs1) and to the third shifting element (c). ... Zf Friedrichshafen Ag

01/15/15 / #20150018165

Multi-ratio transmission

A multistage transmission with eight forward and one reverse gear, including input and output shafts, planetary gearsets, gear stages, shift elements and shafts. The input shaft couples the carrier of gearset (p1) and, via clutch (15), can couple shaft (5) which couples, via clutch (59), shaft (9) which couples the sun gear of gearset (p3) and, via clutch (58), can couple shaft (8) and the ring gear of gearset (p2). ... Zf Friedrichshafen Ag

01/15/15 / #20150018164

Multi-ratio transmission

A multi-stage transmission with eight forward and one reverse gear, including input and output shafts, planetary gear sets, gear stages shift elements and shafts. The input shaft couples the carrier of gearset (p1) and, via clutch (15), can couple shaft (5), which couples the ring gear of gearset (p2) and which, via clutch (58), can couple shaft (8), which couples the sun gear of gearset (p3). ... Zf Friedrichshafen Ag

01/15/15 / #20150018162

Multi-ratio transmission

The transmission with nine forward and one reverse gear includes four planetary gearsets, eight shafts and six shifting elements, the sun gear of gearset (p1) couples shaft (4) which can couple brake (04) to the housing. The input shaft can couple, via clutch (13), shaft (03) which is couples the carrier of gearset (p1) and the ring gear of gearset (p4) and can couple, via brake (03), the housing. ... Zf Friedrichshafen Ag

01/15/15 / #20150018161

Multi-ratio transmission

A multi-stage transmission with nine forward and one reverse gear includes four planetary gearsets, shafts and shifting elements. The sun gear of gearset (p1) couples shaft (5) which can coupled, via brake (05), the housing. ... Zf Friedrichshafen Ag

01/15/15 / #20150018160

Multi-stage planetary vehicle transmission

A multi-gear transmission having a housing, planetary gearsets, shafts and shifting elements. Input shaft (1) is connected or can couple the sun gear of gearset (rs3), and can couple the sun gear of gearset (rs1) and the carrier of gearset (rs1) and can couple the sun gear of gearset (rs2). ... Zf Friedrichshafen Ag

01/15/15 / #20150018157

Multi-ratio transmission

A transmission with nine forward and one reverse gear having four planetary gearsets, eight shafts and six shifting elements. The sun gears of gearsets (p1, p3) couple shaft (5), and can couple the housing by brake (05). ... Zf Friedrichshafen Ag

01/15/15 / #20150014560

Electromagnetic actuator and fluid valve with such an actuator

An electromagnetic actuator with at least one solenoid coil, one armature, which is magnetically movable by means of the solenoid coil in an armature area and has a first and a second tapering, and a magnetic yoke. The yoke has a first dipping stage in which the first tapering of the armature is dipped upon a shifting of the armature in a direction of actuation, and a second dipping stage in which the second tapering of the armature is dipped upon a shifting of the armature in the direction of actuation. ... Zf Friedrichshafen Ag

01/15/15 / #20150014299

Proximity sensor and operator control panel formed therewith

A proximity sensor, in particular for use with a control panel, preferably a stove top, wherein the proximity sensor has at least one antenna, one frequency generator, and one power detector, wherein the at least one antenna is coupled to the frequency generator in order to supply it with power, wherein the power detector is supplied for determining a power level at the at least one antenna, which varies in relation to the radiated power, and wherein the power detector is further provided for emitting a signal relating to the determined power level.. . ... Zf Friedrichshafen Ag

01/15/15 / #20150013802

Pressure control valve with control element

The invention relates to a pressure control valve, composed of at least a valve component; situated between a control chamber and a return chamber, the valve component has an orifice, which a control element can close, partially close, or open, and the control element has at least one, at least truncated cone-like first control element region with a truncated cone angle and the orifice is formed by a through opening, which extends through the orifice element and at its end oriented toward the control element, has at least one cone-like, in particular first, orifice region with a cone angle; and the cone angle is greater than the truncated cone angle.. . ... Zf Friedrichshafen Ag

01/15/15 / #20150013800

Fluid valve for a vehicle transmission

A fluid valve, in particular a pressure control valve in a vehicle transmission, has at least one inlet opening and a first and a second outlet opening, which are connected to each other through two part valves that are mechanically coupled to each other. Whereas, by means of the first part valve, a fluid intake is adjustable from the inlet opening to the first and second outlet opening, and, by means of the second part valve, a fluid discharge is adjustable between the first and second outlet opening. ... Zf Friedrichshafen Ag

01/08/15 / #20150011352

Multi-ratio transmission

A multi-stage transmission with eight forward and one reverse gear including planetary gearsets, shafts, and shift elements. The sun gear of gearset (p1) couples shaft (3) and the ring gear of gearset (p4) and can couple the housing via brake (03). ... Zf Friedrichshafen Ag

01/01/15 / #20150006054

Device having a measuring apparatus for measuring forces and/or loads

A component of a machine. The component has a measuring fixture for measuring forces and at least one metallic, magnetic portion. ... Zf Friedrichshafen Ag

01/01/15 / #20150005133

Multi-ratio transmission

A multi-stage transmission having eight forward and one reverse gear, including planetary gearsets, shafts and shift elements. The sun gear of gearset (p1) is connected to shaft (3) and the ring gear of gearset (p3) and can couple the housing via brake (03). ... Zf Friedrichshafen Ag

01/01/15 / #20150005131

Gear device having at least one electrical variator for the continuous variation of a transmission and comprising power split

A transmission device with at least one electrical variator for the continuous variation of a transmission ratio and with power branching. A planetary gear unit is coupled to a transmission input shaft and to a shaft of the electrical variator, and also to a change-speed gearbox, in the area of which, in combination with the electrical variator, a number of transmission ratio ranges can be produced. ... Zf Friedrichshafen Ag

01/01/15 / #20150004852

Apparatus for mechanical and electrical connection of conductive cores of a cable with cable connectors of an electric module

A device for mechanical and electrical connection of line wires in a cable to line connectors in an electrical assembly for a motor vehicle, wherein each line wire of the cable is connected to one line connector of the electrical assembly in such a manner that a form-locking unit, comprising a contact stud and a contact socket, is mechanically attached to the respective line connector via the contact stud, and furthermore, the respective line wire is mechanically attached to the contact stud of the form-locking unit, specifically providing an electrical contact between the line wire, the contact socket, and the line connector.. . ... Zf Friedrichshafen Ag

01/01/15 / #20150000441

Vehicle transmission and method for its operation

A transmission having a plurality of shifting elements which are selectively engaged and disengaged when a gearshift is carried out, and a plurality of gearsets which, depending on the shifting position of the shifting elements produce a defined transmission ratio, and a shifting oil system which supplies the shifting elements with oil in order to operate them and a cooling and lubricating oil system which supplies assemblies of the transmission with oil for cooling and/or lubricating. From the shifting oil provided by the shifting oil system, a partial stream of oil can be tapped off for cooling and/or lubricating the shifting elements, such that a quantity of cooling and lubricating oil that is or can be supplied by the cooling and lubricating oil system can be reduced to the quantity required for cooling and/or lubricating those assemblies of the transmission which do not contain the shifting elements.. ... Zf Friedrichshafen Ag

01/01/15 / #20150000439

Method for operating a double clutch transmission

A method for the operation of a dual-clutch transmission wherein, through a clutch of a dual-clutch device, sub-transmissions are able to be switched on in the power flux of the dual-clutch transmission or are able to be switched off from the power flux. In the sub-transmissions, two different transmission ratios are able to be engaged or disengaged through the actuation of shifting elements. ... Zf Friedrichshafen Ag








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