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Wabco Gmbh patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "W" | Wabco Gmbh-related inventors


Method and device for electronic control of a vehicle deceleration of a brake slip-controlled vehicle

A method for electronically controlling a vehicle deceleration of a brake slip-controlled vehicle comprising a pneumatic braking system includes detecting that at least one wheel of the vehicle has a brake slip that exceeds a setpoint brake slip; in response to detecting that at least one of the wheels of the vehicle has a brake slip that exceeds the setpoint brake slip, brake slip-controlling the at least one wheel in order to prevent a lockup of the at least one wheel; determining a braking effect caused by wheel brakes on the wheels of the vehicle; and adjusting brake pressures output at the wheel brakes of one or more non-brake slip-controlled wheels in order to adjust the induced braking effect. The brake pressures at the wheel brakes of all non-brake slip-controlled wheels are adjusted.. ... Wabco Gmbh

Disc brake, more particularly for commercial vehicles

A disk brake includes a brake disc, a brake shaft having a rotation axis that lies parallel to a main plane of the brake disc, a brake pad lying on a same side as the brake shaft relative to the brake disc, a pressure piece disposed between the brake shaft and the brake pad, a first limiting device configured to limit, to a predefined first extent, the displaceability of the pressure piece relative to the brake disc in a direction parallel to the rotation axis of the brake shaft, and a second limiting device configured to limit, to a predefined second extent, the displaceability of the brake shaft relative to the brake disc in a direction parallel to the rotation axis of the brake shaft, the second limiting device comprising a first stop on the pressure piece and a second stop on the brake shaft.. . ... Wabco Gmbh

Method for controlling an own vehicle to participate in a platoon

A method for controlling an own vehicle to participate in platoon with at least one other vehicle, wherein the own vehicle and the at least one other vehicle each having communication devices configured to wirelessly transmit dsrc-signals over a vehicle-to-vehicle communication link between each other. The method includes checking initiation conditions to determine if the own vehicle is ready for platooning, identifying at least one other vehicle in signal-transmittal-range to determine if the at least one other vehicle is ready for platooning and the at least one other vehicle is a valid platooning partner, and requesting to an adaptive cruise control system to hold a following-distance between the own vehicle and the at least one other vehicle to form a platoon if the at least other vehicle is ready for platooning and is a valid platooning partner and if the own vehicle is assigned as a following vehicle.. ... Wabco Gmbh

Plug-in connection arrangement and method for preparing a plug-in connection arrangement

A plug-in connection arrangement for a component includes a first portion having a first groove contour in a first annular groove arranged in the first portion, and a second portion having a second groove contour in a second annular groove arranged in the second portion. Via a resilient connection arrangement element arranged between the first portion and the second portion in the second annular groove, the first portion and the second portion can have a retention position relative to each other in a first position and which can be moved in an axial direction into a second position which is provided for operation. ... Wabco Gmbh

Method and device for electronically controlling a vehicle deceleration in an abs braking system

A method for controlling a vehicle deceleration in a vehicle comprising an abs braking system includes detecting a setpoint vehicle deceleration predetermined by a driver; establishing a maximum deceleration and a minimum deceleration, in each case as a function of the detected setpoint vehicle deceleration; detecting an actual vehicle deceleration; and controlling a brake pressure at wheel brakes of a vehicle axle to be controlled as a function of the detected actual vehicle deceleration by controlling abs brake valves. Controlling the brake pressure at the wheel brakes of the vehicle axle as a function of the detected actual vehicle deceleration comprises: increasing the brake pressure at the wheel brakes when the actual vehicle deceleration is less than the minimum deceleration, and limiting the brake pressure at the wheel brakes when the actual vehicle deceleration is greater than the maximum deceleration.. ... Wabco Gmbh

Method and device for electronically controlling a vehicle deceleration in an abs braking system

A method for controlling a vehicle deceleration in a vehicle with an abs brake system. The method includes detecting a target vehicle deceleration specified by a driver; defining a maximum deceleration and a minimum deceleration, each depending on the detected target vehicle deceleration; detecting an actual vehicle deceleration; and controlling a braking pressure on wheel brakes of a first vehicle axle and a second vehicle axle depending on the detected actual vehicle deceleration by actuation of abs brake valves. ... Wabco Gmbh

Method and device for electronically controlling a vehicle deceleration in dependence on a differential slip between two vehicle axles

A method for controlling a vehicle deceleration depending on a differential slip between two vehicle axles in a vehicle with an abs brake system includes detecting at least one of a target vehicle deceleration specified by the driver and an actual vehicle deceleration; and controlling a braking pressure on wheel brakes of a vehicle axle to be controlled by actuation of abs brake valves in such a way that the braking pressure on the wheel brakes of the vehicle axle to be controlled is controlled depending on a detected actual differential slip, so that the actual differential slip corresponds to a target differential slip. The actual differential slip indicates a difference in a rotational behavior of the vehicle axle to be controlled relative to a further vehicle axle. ... Wabco Gmbh

Method for monitoring a brake for motor vehicles, brake system for implementing the method, and motor vehicle comprising same

A method monitoring a pneumatically actuatable brake for motor vehicles, wherein an air gap of the brake is ascertained using measured position values provided by a brake wear sensor, includes ascertaining a reference position value of the brake wear sensor during unbraked travel, determining multiple value pairs of discrete position values and a current brake pressure p at a same point in time during a braking procedure, ascertaining a characteristic function interpolating the value pairs, determining a characteristic position value according to the characteristic function for a selected brake pressure, and determining an actual value of the air gap by subtracting the reference position value from the characteristic position value.. . ... Wabco Gmbh

Hydraulic braking system

An external force-supported hydraulic braking system of a wheeled vehicle includes two brake circuits each having a main brake line configured to be connected to a pressure-carrying supply line or to a pressureless return line via a brake valve and further having a number of wheel brake lines branching from the main brake line and including a valve assembly of a tcs system. The valve assembly of the tcs system has a single tcs control valve formed as a 6/2-way magnetic switching valve configured to, in a non-actuated state, block a pressure-carrying main pressure line against two bypass lines each leading directly to a respective main brake line, and connect the two return lines to a pressureless collective line, and further configured to, in the actuated state, connect the main pressure line to the two bypass lines and block the two return lines against the collective line.. ... Wabco Gmbh

Valve assembly for an antilock system of a brake system of a vehicle

A valve assembly for an antilock system of a brake system of a vehicle includes a cylindrical rotary valve rotatably mounted in a valve block and configured to be activated by a step motor, configured to occupy at least two shifting positions, and having one input and one output. In one of the shifting positions, at least one duct leading to a wheel brake cylinder can be acted upon with a pressurizing medium via the input. ... Wabco Gmbh

Sensor unit, sensing and analysis device with such a sensor unit and motor vehicle or trailer therewith and method for protecting an analyzer

A sensor unit (2) for a motor vehicle or trailer is disclosed. The sensor unit comprises a sensor measuring arrangement (16) for sensing at least one physical variable, a sensor housing (12) partly or fully enclosing the sensor measuring arrangement (16) and at least two connecting lines (18). ... Wabco Gmbh

Brake modulator for a compressed air braking system of a vehicle

A brake modulator (1) for a compressed air braking system (80) of a vehicle is disclosed. The brake modulator (1) has a main housing (8) and two relay valves (2, 3) each relay valve is configured with a delivery valve seat (31, 131) and a vent valve seat (30, 130) and a vent position, wherein compressed air inlets (2d, 3d) are connected via a transverse bore (27) to a common compressed air inlet port (25, 26), and a delivery duct (12a, 112a) extends in the axial direction (a) in each relay valve (2, 3) the relay valves (2, 3) have guide body inserts (12, 112) which are inserted into a longitudinal bore (29) of the main housing (8), which longitudinal bore (29) extends in the axial direction (a), and the relay valves (2, 3) in each case have the delivery duct (12a, 112a).. ... Wabco Gmbh

Compact, highly integrated, oil lubricated electric vacuum compressor

An electrically driven positive displacement compressor includes an electric drive motor configured to drive the compressor, the electric drive motor including a ring shaped electric stator and an electric rotor arranged inside the ring shaped electric stator and defining a cavity within the electric rotor. The compressor also includes a working chamber having an inlet and an outlet, the working chamber being arranged at least partially inside the cavity of the electric rotor. ... Wabco Gmbh

Compressed air-supply-system for a pneumatic system, housing for the compressed air-supply-system, method for manufacturing a housing, method for operating a compressed air supply, control-unit and vehicle

A compressed air supply system for supplying compressed air to a pneumatic system is disclosed. The compressed air supply system comprises a compressed air input port, a compressed air output port and a vent port, a pneumatic main pipe arranged between the compressed air input port and the compressed air output port, a pneumatic vent pipe arranged between the compressed air output port and the vent port and connected to the pneumatic main pipe, a purge valve arranged in the pneumatic vent pipe for venting the compressed air supply system, a regeneration valve for controlling a regeneration flow of compressed air through an air dryer arranged in the main pipe, a governor valve for generating a pressure signal, and a first and a second pneumatic control pipe.. ... Wabco Gmbh

12/21/17 / #20170361665

Tyre pressure regulating device

A tyre pressure regulating device for adjusting, while driving, the tyre pressures of vehicle wheels of a plurality of vehicle axles of a motor vehicle with pneumatic tyres includes at least one switchover valve arranged on the vehicle chassis that can be controlled in an electromagnetic/pneumatic manner, a plurality of axle valves, each axle valve being arranged on the vehicle chassis for each vehicle axle and being controllable in an electromagnetic/pneumatic manner, a plurality of pressure-controlled wheel valves, each pressure-controlled wheel valve being arranged at a respective vehicle wheel, a pilot control valve arranged on the vehicle chassis and being controllable in a purely electromagnetic manner or in an electromagnetic/pneumatic manner, and a plurality of two-channel rotary couplings arranged between the vehicle axles and associated vehicle wheels and provided with switchable seals.. . ... Wabco Gmbh

11/23/17 / #20170334491

Rear spoiler device for a vehicle

A rear spoiler device (8) for a vehicle comprises an air-guiding element (9, 19), which can be moved between a retracted base position and a driving position and has a guiding surface (9d) for aerodynamically extending the contour of an exterior surface (4, 3) of the vehicle in the driving position. The air-guiding element (9) has a contact edge (9c) extending in a lateral direction (y) for contacting the exterior surface (4) of the vehicle (1) in the driving position, wherein the rear spoiler device (8) can be mounted completely on a rear door of the vehicle, the air-guiding element (9, 19) being designed in a multi-layer manner.. ... Wabco Gmbh

11/09/17 / #20170321680

Compressor

A compressor (10) for compressing air for a compressed air system of a motor vehicle has a cylinder housing (14) and a cylinder head (16) connected thereto. A compressor piston is moveable in oscillation up and down in a cylinder in the cylinder housing (14). ... Wabco Gmbh

10/26/17 / #20170307035

Disc brake with adjustment mechanism having a thread device

A disk brake includes a brake disk, a brake caliper, at least one application device lying within the brake caliper on one side of the brake disk, an axially movable device configured to move a brake pad axially toward the brake disk by way of at least one actuating spindle when the brake is actuated, and an adjustment mechanism configured to rotate the actuating spindle because of a rotational coupling acting in the direction of rotation. The adjustment mechanism comprises a thread device, which, at least in the case of rotation in a second direction of rotation opposite a direction of rotation, is configured to mesh with an external thread of the actuating spindle and is configured to screw the adjustment mechanism in relation to the actuating spindle.. ... Wabco Gmbh

10/26/17 / #20170307032

Pneumatically or electromechanically actuated disk brake for utility vehicles

A pneumatically or electromechanically actuated disk brake includes a brake disk having a preferred direction of rotation in forward travel, a brake carrier extending around the brake disk, a brake caliper extending around the brake disk, a fastening-side brake pad with a friction material, an application device having a pressure-exerting device on one side of the brake disk, and a rim-side brake pad with friction material. A fastening-side line of gravity, in the rest state of the brake, is arranged with a predetermined first offset with respect to a central axis in the direction of the entry side of the brake disk in the preferred direction of rotation. ... Wabco Gmbh

10/12/17 / #20170292576

Disc brake with adjustment mechanism having a thread device

A disk brake includes a brake disk, a brake caliper, at least one application device lying within the brake caliper on one side of the brake disk, an axially movable device configured to move a brake pad axially toward the brake disk, and an adjustment mechanism configured to be rotated about an rotation axis lying parallel to a rotation axis of the brake disk and which, in the case of rotation in a first direction of rotation bringing about adjustment, is configured to rotate the actuating spindle. The adjustment mechanism includes a thread device which, at least in a rotation in a second direction of rotation opposite the first direction of rotation, is configured to mesh with the external thread of the actuating spindle and to screw the adjustment mechanism in relation to the actuating spindle.. ... Wabco Gmbh

10/05/17 / #20170289254

Vehicle network and method for establishing a vehicle network

A vehicle network for a plurality of interconnected vehicles is disclosed. The network is in the form of a wlan and has at least two access points. ... Wabco Gmbh

09/14/17 / #20170261353

Support for a sensor element, assembly, and rotational speed sensor

Disclosed is a support (10) for a sensor element (11). The support (10) is for potting and manufacturing a rotational speed sensor. ... Wabco Gmbh

09/14/17 / #20170259794

Method and braking control device for stabilising a vehicle combination

A method for stabilizing a vehicle combination including a towing vehicle and at least one trailer vehicle includes determining wheel revolution rates of a driven axle of the towing vehicle and a vehicle speed of the towing vehicle, checking, as a first criterion, whether there is braking wheel slip at the driven axle of the towing vehicle without the operation of a wheel brake of the driven axle of the towing vehicle, and actuating, in response to the first criterion being met, at least one wheel brake of the trailer vehicle.. . ... Wabco Gmbh

09/07/17 / #the invention concerns a valve unit (1) for modulating pressure in a compressed air braking system, with a brake pressure input (3), a brake pressure output (4), and a purge output (5), an inlet valve (6) configured as a diaphragm valve, an outlet valve (7) configured as a diaphragm valve, and with, for each diaphragm valve (6, 7), respective precontrol valves (8, 9), which are each configured as a 3/2-way solenoid valve and are arranged in an elongate valve housing (2), which is divided by a division plane (10) that is largely horizontal in the installation position into a base housing (11) and a housing cover (12).

Wabco Gmbh

. . ... Wabco Gmbh

09/07/17 / #20170254332

Vacuum pump

An automotive vacuum pump includes a casing defining a cavity, the casing having an inlet and an outlet, wherein the cavity contains a rotor extending through a side of the casing to the exterior thereof and being provided with a coupling arrangement to couple the rotor to a drive member. The vacuum pump is provided with a lubrication conduit for the supply of lubricating fluid to the coupling arrangement from within the vacuum pump.. ... Wabco Gmbh

09/07/17 / #20170254322

Air compressor made of a light metal

Disclosed is an air compressor (10) for supplying compressed air to a pneumatic system in a motor vehicle. The air compressor (10) comprises a crankcase (46), a cylinder housing (14) connected to the crankcase, a cylinder head (20), a crankshaft (40) rotatably mounted in the crankcase, a cylindrical piston (12) that is connected to the crankshaft (40) by a connecting rod (42). ... Wabco Gmbh

09/07/17 / #20170253224

Valve unit for modulating the pressure in a pneumatic brake system

A valve unit (1, 1′) for modulating the pressure in a pneumatic brake system, has a brake pressure inlet (3), a brake pressure outlet (4) and a venting outlet (5), a pneumatically controllable main valve (6, 7) and a pilot valve (8, 9), embodied as a solenoid valve and assigned to the main valve (6, 7), which are arranged in a valve housing (2, 2′) subdivided by a plane of division (10), into a main housing (11, 11′) and a housing cover (12). Forfixing the housing cover (12) on the main housing (11, 11′) a bracket element (62.1) is fixed to the main housing (11, 11′) and bears with a largely planar pressure plate (63) generating an elastic prestressing force on a planar outside wall (64) of the housing cover (12) oriented parallel to the plane of division (10) of the valve housing (2, 2′).. ... Wabco Gmbh

08/31/17 / #20170246928

Compressed air supply installation and pneumatic system

A compressed air supply installation for operating an air suspension installation of a vehicle includes an air supply unit configured to supply air, an air compression unit configured to compress air, a bleeding line, and a compressed air supply line. The bleeding line includes a bleeding valve arrangement in the form of a controllable solenoid valve arrangement comprising a magnetic part and a pneumatic part actuatable directly via the magnetic part, and a bleeding port for bleeding air. ... Wabco Gmbh

08/24/17 / #20170245321

Method for setting up and operating a wireless vehicle network

Disclosed is a method for setting up and operating a wireless vehicle network with at least two stations which are also interconnected via a physical line. The stations can communicate with one another both wireles sly and via the physical line during the wireless network set-up. ... Wabco Gmbh

08/24/17 / #20170241495

Disc brake

A disc brake includes a brake pad, a retaining spring, and a retaining bracket. The retaining bracket pretensions the retaining spring radially inwardly relative to a rotation axis of a brake against the brake pad. ... Wabco Gmbh

08/17/17 / #20170234903

Method for identifying a sensor apparatus for measuring speed, sensor apparatus for measuring speed, and vehicle having at least one sensor apparatus for measuring speed

A sensor device (12) to measure the speed of a wheel of a vehicle is disclosed. The sensor device (12) is assigned an identifier (28, 30, 32) which can be contactlessly read. ... Wabco Gmbh

08/17/17 / #20170234386

Disc brake

A disc brake includes a brake caliper, a brake pad, a retaining spring holding the brake pad in a radial direction relative to a brake axis, a retaining bracket pretensioning the retaining spring in the radial direction, a first holder on the brake caliper configured to support the retaining bracket towards a radial outside, and a second holder on the brake caliper configured to support the retaining bracket radially towards the radial outside but not in an axial direction, the second holder comprising a stop. At least one of the first holder or the second holder has a stop acting in a first axial direction. ... Wabco Gmbh

08/10/17 / #20170225667

Electronic brake system for a vehicle

Disclosed is an electronic brake system for a vehicle, the electronic brake system including one or more electronic components, with at least one electronic control unit. The electronic brake system also includes one or more devices for establishing wireless communications. ... Wabco Gmbh

08/03/17 / #20170221281

Method for determining the duty factor of a pulse-width-modulated signal and vehicle control unit

The present invention provides a method for the redundant measurement of the duty factor of pulse-with-modulated signals 12 via a vehicle control unit. According to the method, a direct determination of the duty factor of the signal 12 is performed by way of periodic sampling.. ... Wabco Gmbh

08/03/17 / #20170219139

Rotatable axially securing and pressure-resistant line connection

A connection arrangement includes a first connection body and a second connection body for forming a pneumatic connection along a connection axis, and a sealing element configured to seal a sealing gap which surrounds the pneumatic connection and which has a longitudinal dimension which extends parallel to the connection axis. A pneumatic flow is able to travel through the first and second connection bodies along the connection axis. ... Wabco Gmbh

08/03/17 / #20170217412

Valve unit for modulating pressure in an air-brake system

A valve unit (1.1, 1.2, 1.3) for modulating pressure in a compressed air braking system has an inlet valve (6) configured as a diaphragm valve, an outlet valve (7) configured as a diaphragm valve, and respective precontrol valves (8, 9), which are each configured as a 3/2-way solenoid valve and are arranged in an elongate valve housing (2), which is divided by a division plane (10) that is largely horizontal in the installation position into a base housing (11) and a housing cover (12). The precontrol valves (8, 9) are arranged in the housing cover (12) in the longitudinal direction (13), and the housing cover (12) has a centrally arranged magnet module (20) and two air guide modules (23, 24) adjacent to the magnet module (20) in the longitudinal direction (13) and connected via a single connecting element (45) both to each other and to the base housing (11).. ... Wabco Gmbh

07/27/17 / #20170210365

Brake pressure modulator of an electronic braking system of a utility vehicle

A brake pressure modulator (1) of an electronic braking system of a utility vehicle includes pressure control circuits (13, 14) respectively associated with a braking circuit of a vehicle axle, each pressure control circuit (13, 14) comprises a compressed air supply system (4, 5), at least one redundancy control pressure path (21), at least one ventilation path (19, 19a) and a common electronic control unit (2). Said pressure control circuits (13, 14) can be controlled independently from each other by the electronic control unit (2). ... Wabco Gmbh

07/20/17 / #20170203742

Method for operating a pneumatic system of a vehicle

A method for operating a pneumatic system of a vehicle is disclosed. The pneumatic system comprises an electronically and/or pneumatically controlled compressor which supplies compressed air during a normal mode and which is switched off or idles when not supplying compressed air. ... Wabco Gmbh

07/13/17 / #20170198695

Vacuum pump with eccentrically driven vane (eccentric pump design)

A rotating vane vacuum pump includes a housing defining a cavity having an inlet and an outlet, a drivable vane member for a rotary driven movement inside the cavity, a rotor inside the cavity, and a rotatable central shaft extending into the cavity. The vane member is coupled to the central shaft by an eccentric element on the central shaft and movably arranged in the rotor, the rotor being rotatable together with said vane member upon rotation of the vane member. ... Wabco Gmbh

06/22/17 / #20170174198

Method for the adaptive control of a driver operation-dependent actual vehicle deceleration

A method for the adaptive control of a driver operation-dependent actual vehicle deceleration in a commercial vehicle includes determining an operating variable that indicates a displacement of a brake pedal of a brake valve demanded by the driver as well as an assistance deceleration demand, providing a mass-dependent feeling curve that associates a driver's deceleration demand with the operating variable, adapting the mass-dependent feeling curve if there is no assistance deceleration demand so that the determined operating variable is associated with an actually prevailing actual vehicle deceleration, specifying a target vehicle deceleration depending on a driver operation-dependent driver's deceleration demand determined from the corresponding feeling curve and the assistance deceleration demand if there is an assistance deceleration demand, and actuating a brake pressure corresponding to the target vehicle deceleration for adaptively adjusted, driver operation-dependent control of the actual vehicle deceleration.. . ... Wabco Gmbh

06/15/17 / #20170166212

Method for actuating electric motors in serial hybrid vehicles or fully electric vehicles having at least two separately driven axles

A method includes ascertaining a first drive force and a second drive force for a first drive axle and a second drive axle of a vehicle, ascertaining a first slip value and a second slip value for the first drive axle and the second drive axle of the vehicle, determining a first slip measured value for the first drive axle from the first drive force and the first slip value and determining a second slip measured value for the second drive axle from the second drive force and the second slip value, determining a total torque that is to act altogether on the first drive axle and the second drive axle, and dividing the total torque into a first desired torque and a second desired torque in dependence upon the first slip measured value and the second slip measured value.. . ... Wabco Gmbh

06/01/17 / #20170156062

Establishing a wireless connection to a vehicle

A method for establishing a wireless connection between a mobile communication device and a communication module (14) of a vehicle (10) with an identifier (17) is disclosed. According to the method, access rights, namely links between vehicle identifiers (17) and user identifiers, as well as data required for establishing the wireless connection, are stored in a database server (16) outside of the mobile communication device. ... Wabco Gmbh

06/01/17 / #20170152875

Compressed-air supply installation, pneumatic system, and method for controlling a compressed-air supply installation

A compressed air supply installation for operation of an air spring installation of a vehicle includes an air feed with an air compressor configured to supply a compressed air feed with compressed air, a pneumatic main line with an air dryer and a compressed air connection for supplying the pneumatic installation with compressed air, a purge line branching from the pneumatic main line to the compressed air feed and comprising a purge valve connected in the purge line and a purge connection for releasing air to the environment, wherein the purge valve is part of a controllable valve assembly. The controllable valve assembly with the purge valve can be pneumatically loaded with a control pressure derived from the air compressor.. ... Wabco Gmbh

05/18/17 / #20170142600

Method for setting up and operating a wireless network

A method is disclosed for establishing and operating a wireless network with a first communication unit, a second communication unit and a mobile communication unit. The first and second communication units are configured in each case as a server and the mobile communication unit is configured as a client. ... Wabco Gmbh

05/11/17 / #20170129487

Method for operating an autonomous driving safety or driver assistance system of a motor vehicle

A method includes continuously recording, by the autonomous driving safety or driver assistance system, at least one of vehicle-related data and vehicle surroundings-related data, continuously repeatedly deciding, based on the recorded data, whether a driving safety or driver assistance system process is to be autonomously initiated or carried out, and carrying out a checking process, during which sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof. The checking process is carried out immediately following a start of travel of the motor vehicle. ... Wabco Gmbh

05/11/17 / #20170129300

Compressed-air supply system, pneumatic system and method for operating a compressed-air supply system

A compressed-air supply system for operating a pneumatic installation includes a reservoir, a number of bellows, a pressure-air feed to which a charging assembly having a compressor is connected on a pressure-medium feed side, a pressure-air connection to the pneumatic installation, a venting connection to the environment, a pneumatic main line between the pressure-air feed and the pressure-air connection, a vent line between the pressure-air feed and the venting connection and a changeover valve associated with the pressure-air feed and configured to be controlled by pressure air in such a way that the pressure-air feed is open or can be opened via the changeover valve to the main line. A flow pressure at the pressure-air feed can be generated by the charging assembly to the main line.. ... Wabco Gmbh

05/04/17 / #20170120711

Method for controlling the level of an air-suspended motor vehicle

A method for controlling the level of an air-suspended motor vehicle includes determining, by a sensor system, at least one of the speed of travel or the actuation state of a parking brake, measuring, if at least one of the speed of travel has undershot a minimum speed of travelor the parking brake has been actuated, the actual level in the region of each air spring bellows, comparing the measured values for the actual level with the predetermined setpoint level, determining an actual level value of an air spring bellows having the greatest deviation from the setpoint level, and expanding, for the air spring bellows having an actual level having the greatest deviation from the setpoint level, the tolerance band by at least one of increasing the upper tolerance limit thereof to a corrected upper tolerance limit or lowering the lower tolerance limit thereof to a corrected lower tolerance limit.. . ... Wabco Gmbh

04/27/17 / #20170113507

Method for controlling the traction of a pneumatically sprung vehicle and air suspension system for carrying out the method

In a pneumatically sprung vehicle (1) with a front steering axle (a), one rear drive axle (ta) and one trailing axle (sa), traction is controlled by an air suspension system (36), having a “pressure ratio control” mode maintaining a parametrised ratio of air pressures in supporting bellows (2, 4) of the drive axle (ta) compared to air pressures in supporting bellows (3, 5) of the trailing axle (sa); a “relieve loading of trailing axle” mode checking whether relieving of the loading of the trailing axle (sa) is possible without overloading the drive axle (ta); and an “optimum traction” control mode increasing the pressure in the supporting bellows (2, 4) of the drive axle (ta) and reducing the pressure in the supporting bellows (3, 5) of the trailing axle (sa) without exceeding the maximum permissible axle load of the drive axle (ta) while maintaining residual pressure of the trailing axle (sa).. . ... Wabco Gmbh

04/20/17 / #20170111798

Method for authorization in a wireless vehicle network

A method for authorization in a wireless vehicle network is disclosed. In particular, the method is for authorizing communication between a mobile communications unit and a vehicle-based communications unit assigned to a control unit in a vehicle, wherein there is an unauthorized connection between the mobile communications unit and the vehicle-based communications unit. ... Wabco Gmbh

04/20/17 / #20170106841

Method for operating an electronic brake system

A method for operating an electronic brake system in a vehicle having at least two tires on an axle, wherein the vehicle has a center of gravity (sp) with a height (hsp), is disclosed. According to the method, the height (hsp) of the center of gravity (sp) is calculated and used as a parameter by the electronic brake system. ... Wabco Gmbh

03/30/17 / #20170088104

Method for establishing a wireless connection

A method for establishing a wireless connection between a first transceiver in a trailer vehicle (12) having an electronic braking system and at least one second transceiver outside of the trailer vehicle (12) is disclosed. The first transceiver is assigned to an electronic control unit (14, 22) in the trailer vehicle (12), which is coupled to a tractor vehicle (10) and a wired connection (15, 16, 17) exists. ... Wabco Gmbh

03/23/17 / #20170080912

Valve arrangement

A valve arrangement for brake control of a vehicle braking system which is operated using pressure medium includes a relay valve arranged in a housing, and a solenoid valve configured for controlling the relay valve. The relay valve has an axially displaceable relay valve piston with a first annular sealing seat configured to be acted on with a control pressure which is directed into a control pressure chamber and which can be adjusted by the solenoid valve, having an axially displaceable plate valve having a radial sealing face, and having an insert secured to the housing which separates an operating chamber from a pressure chamber and which has a second annular sealing seat which is arranged coaxially relative to the first annular sealing seat of the relay valve piston. ... Wabco Gmbh

03/09/17 / #20170067571

Solenoid valve

A solenoid valve (10) comprises a coil core (15), a yoke (16), a valve chamber (13), an inlet armature (11) upstream of an inlet (17) of the valve chamber (13), an outlet armature (12) upstream of a first outlet (18) of the valve chamber (13), and second outlet (19) at the valve chamber (13), wherein the inlet armature (11) and outlet armature (12) can move and the inlet (17) and first outlet (18) lie opposite one another. In the solenoid valve (10), the inlet (17) and the second outlet (19) are connected to one another by way of an equalizing system having a non-return valve (25), wherein the non-return valve (25) is open towards the inlet (17).. ... Wabco Gmbh

03/02/17 / #20170058846

Vacuum pump and system of a vacuum pump and an engine

A vacuum pump suitable for mounting to an engine includes a casing, a cavity in the casing having with an inlet and an outlet, a moveable member arranged for rotation inside the cavity, wherein the movable member is movable to draw fluid into the cavity through the inlet and out of the cavity through the outlet so as to induce a reduction in pressure at the inlet, an oil supply conduit for supplying oil from a reservoir to the cavity, and a check valve having a check valve body arranged in the oil supply conduit. The check valve meters the oil flow to the cavity dependent on an oil pressure so that on exceeding an upper oil pressure threshold the supply of oil to the cavity is stopped by means of the check valve.. ... Wabco Gmbh

02/09/17 / #20170036655

Method for the temperature-dependent control of a pressure control valve and a control device therefore

A method for the temperature-dependent control of a pressure control valve of a vehicle comprising an inlet valve and an outlet valve includes detecting a predefined pressure difference to be controlled by the pressure control valve, determining a present valve body temperature, wherein, for this purpose, a temperature change proceeding from a starting temperature is considered depending on at least one detected valve body influencing variable, determining, depending on the pressure difference to be controlled and on the determined present valve body temperature, at least one of a temperature-adjusted pulse duration for the inlet valve and a temperature-adjusted pulse duration for the outlet valve, and controlling at least one of the inlet valve and the outlet valve of the pressure control valve via the particular temperature-adjusted pulse duration in order to effectuate the detected pressure difference at the determined valve body temperature.. . ... Wabco Gmbh

02/09/17 / #20170036654

Valve unit for modulating the pressure in a pneumatic brake system

The invention relates to a valve unit for modulating the pressure in a pneumatic brake system, comprising a brake pressure inlet, a brake pressure outlet, a vent outlet, a diaphragm inlet valve, a diaphragm outlet valve, and a pilot valve for each diaphragm valve, the pilot valves being arranged in an elongate valve housing (having a main housing and a housing cover. The inlet valve pilot valve and the outlet valve pilot valve are arranged substantially centrally above the diaphragms of the inlet valve and the outlet valve in the housing cover and with the actuation axes of the pilot valves running parallel to the parting plane, and the housing cover includes a central insert which has valve bores and control channels and into which the solenoids and the mechanical components of the pilot valves are inserted, the central insert being encapsulated with a plastic material.. ... Wabco Gmbh

01/26/17 / #20170021873

Rear spoiler device for a vehicle

A rear spoiler device for a vehicle with at least one rear door has a side air guiding element which can be adjusted between a retracted basic position and a travel position for contour extension and aerodynamic air guiding, a roof air guiding element which can be adjusted between a basic position and a travel position for contour extension and aerodynamic air guiding, and a coupling device for coupling the adjustment movements of the side air guiding element and the roof air guiding element. The coupling device is provided between a lower side of the roof air guiding element and an upper end of the side air guiding element. ... Wabco Gmbh








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