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Scania Cv Ab patents


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

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Method and system for detection of torque deviations of an engine in a vehicle

A method and a system for detection of torque deviations of an engine (101) in a vehicle (100). A measurement (201) is made of actual measured values dact related to a behavior of at least one parameter which is related to an actual torque meng_act delivered by the engine (101). ... Scania Cv Ab

A method and a system for evaluating an effective component content of a reducing agent

A method for evaluating an effective component content (c) of a reducing agent for engine exhaust gas processing arranged in a container (205) in which a heat transfer provision arrangement (240) is provided, including steps of: determining (s410; s420) a prevailing volume (v) and temperature (t1) of the reducing agent in the container (205); determining (s430) a prevailing temperature (t2) of the heat transfer provision arrangement (240); determining (s440) a prevailing temperature (t3) of a medium surrounding the container (205); for a predetermined time period, determining (s450) a mean temperature change rate (tprim) for the reducing agent; and determining (s460) the effective component content (c) of the reducing agent on the basis of the above determined parameters.. . ... Scania Cv Ab

Method for controlling an actual speed of a motor vehicle

A method is provided for controlling an actual speed of a motor vehicle. The method comprising the steps of: based on a vehicle configuration of the present vehicle, setting a threshold speed for the vehicle; obtaining a set speed of the vehicle; comparing the set speed to the threshold speed; if the set speed is below the threshold speed; determining a desired reference speed of the vehicle between the set speed and the threshold speed; and adjusting the actual speed of the vehicle toward the reference speed.. ... Scania Cv Ab

A method and a system for providing an auxiliary unit control profile for controlling an auxiliary unit in a motor vehicle

A method and a system (200) for providing an auxiliary unit control profile for controlling an auxiliary unit (201) in a motor vehicle (202) including receiving travelling route data relating to a travelling route of the motor vehicle and based thereon, identifying an expected future travelling route. Based on the expected future travelling route and on auxiliary unit operation data, an auxiliary unit control profile for controlling the auxiliary unit during travel along the expected future travelling route is determined in a processing unit (204). ... Scania Cv Ab

A method and a system for determining a composition of a gas mix in a vehicle

The invention relates to a method, system, and computer program product for determining a composition of a gas mix in a vehicle, said method comprising the steps of: exposing the gas mix with light; measuring data relating to a light absorption of the gas mix at at least two different pressures of the gas mix; and determining the composition of the gas mix based on said measured data. The invention relates also to a vehicle equipped with said system.. ... Scania Cv Ab

Method and control unit for avoiding an accident at a crosswalk

Method and control unit in a vehicle for avoiding an accident at an unattended crosswalk. The method comprises: detecting an approaching crosswalk; detecting a vulnerable road user (vru) in the vicinity of the crosswalk; determining that the detected vru is going to walk across the road; determining a distance between the vehicle and the crosswalk; estimating a velocity of the vru; determining a deceleration capacity of the vehicle, based on deceleration sensitivity of passengers on the vehicle, weight of the vehicle, and/or estimated friction between vehicle tires and the road; and determining a recommended action to be made by the vehicle.. ... Scania Cv Ab

Method and system for controlling a catalytic converter system

The invention relates to methods, systems, and computer program products for controlling a catalytic converter system in a vehicle. The method comprises predicting the temperature of at least one element of the catalytic converter system based on at least a model of the catalytic converter and on an expected driving of the vehicle. ... Scania Cv Ab

System and method for preventing undesired movements of a motor vehicle combination

A method for preventing undesired movements of a motor vehicle combination (100) including a tractor vehicle (110) and a towed vehicle (112), where the tractor vehicle (110) has a parking brake system (280), the vehicle combination (100) has at least one electronically activable service brake system (270; 275) and is provided with movement detectors (210, 220, 230, 240, 250) and the parking brake system (280) is activated during desired standstills of the vehicle combination (100). The method includes the steps of:—continuously detecting (s320) movements of the vehicle combination (100) relative to a running surface on which the vehicle combination (100) is at the time; and—responding to detected movements of the vehicle combination by automatically activating (s330) service brake action of the electronically activable service brake system (270; 275). ... Scania Cv Ab

Lubrication system and a method for controlling the lubrication system

The invention relates to a lubrication system and method for controlling the lubrication system. The lubrication system comprises a bypass line by which it is possible to lead a part of the oil flow in the oil line past a component to be lubricated and back to the oil sump, a first valve configured to regulate the oil flow through the bypass line and a control unit. ... Scania Cv Ab

A method and a system for determining a flow resistance across a particulate filter

A method of determining a flow resistance across a particulate filter located downstream of an internal combustion engine in an exhaust system. The method comprises measuring a first differential pressure across the particulate filter, measuring a second differential pressure downstream of the particulate filter, determining a pressure ratio of the first differential pressure and the second differential pressure, and from said pressure ratio, determining a flow resistance across the particulate filter. ... Scania Cv Ab

Device and method at an exhaust afterteatment system for an engine

A method at an exhaust gas cleaning system for an engine (235) in which a reducing agent is added to a passage (290) for exhaust gases from the engine (235) for cleaning the exhaust gases. The exhaust gas cleaning system includes arrangements (270) that require a certain temperature level (tmax) in order to achieve catalytic exhaust gas cleaning. ... Scania Cv Ab

Door locking device for locking a vehicle door

The invention refers to a door locking device for manually/physically locking a vehicle door from inside a vehicle, especially a cab door of a truck, comprising a housing including locking members movable between an unlocked position and a locked position. A first lever arm is partly rotatable connected to the housing and a second lever arm is partly rotatable connected to the other end of the first lever arms. ... Scania Cv Ab

Device, method and system for an autonomous vehicle

A device, a system and a method for an autonomous vehicle capable of independently travelling along a road and to communicate in a wireless way. The device is configured to determine a route for the autonomous vehicle, and to determine presence of any risk segment along the route. ... Scania Cv Ab

A brake arrangement for an upshift process in a gearbox

A brake arrangement for a gearbox is provided, where the gearbox comprises an input shaft, a counter shaft, a main shaft and a plurality of gear wheels pairs which each comprises a primary gear wheel arranged on the counter shaft and a secondary gear wheel arranged on the main shaft. The brake arrangement further comprises at least two brake units each configured to act with a braking torque on the counter shaft or a component connected to the counter shaft, and a control unit configured to control the activation of the brake units. ... Scania Cv Ab

02/01/18 / #20180029600

Method and control system for charging a hybrid vehicle

A hybrid vehicle comprising an internal combustion engine, a hybrid system, a parking brake, a gear box and an electronic control system is provided. A method for controlling the method comprises charging the hybrid vehicle by receiving and storing electric energy, which enables a safe way of starting the internal combustion engine during the charging. ... Scania Cv Ab

02/01/18 / #20180029488

Method and control system for charging a vehicle

A method for controlling charging of a hybrid vehicle, a control system for charging of a hybrid vehicle and a hybrid vehicle comprising the control system is described. The hybrid vehicle comprises a fuel engine, a parking brake, an electronically controllable operating brake, and a hybrid system comprising a charging unit, an energy storage, and an electric motor system. ... Scania Cv Ab

01/25/18 / #20180022226

Method and control system for charging a vehicle

A hybrid vehicle and a method of controlling a hybrid vehicle is provided. The hybrid vehicle comprises an electronic control system configured to perform a first mode of controlling the selective opening and closing of a blocking mechanism of a connector socket, which connector socket is provided for connection of a charging cable to the hybrid vehicle. ... Scania Cv Ab

12/21/17 / #20170361706

Gearbox with a pto clutch with integrated shaft brake

The present invention relates to a device for a gearbox which comprises a main shaft, a counter shaft, a plurality of gearwheel pairs each comprises a primary gearwheel arranged on the counter shaft and a secondary gearwheel arranged on the main shaft and a pto shaft. The device comprises a switch mechanism movably arranged to a first position in which the pto shaft is disconnected from the counter shaft in a non-rotatable state, to a second position in which the pto shaft is rotationally fixedly connected to the counter shaft, and to a neutral position in which the pto shaft is in a rotatable state and disconnected from the counter shaft. ... Scania Cv Ab

12/07/17 / #20170349177

Method and control unit for adjusting a time gap

A method (400) and a control unit (310) in a vehicle (100) having an acc system (500) for adjusting a variable time gap (t) to be kept to a preceding vehicle (110), based on a road slope (α). In the method (400): determining (401) geographical position of the vehicle (100); determining (402) driving direction (105) of the vehicle (100); determining (403) the road slope (α) of the road (120) in front of the vehicle (100) in the determined (402) driving direction (105); and adjusting (408) the variable time gap (t) based on the determined (403) road slope (α) of the road (120) in front of the vehicle (100) by: increasing the variable time gap (t) when the road slope (α) is negative, indicating downhill; or decreasing the variable time gap (t) when the road slope (α) is positive, indicating uphill.. ... Scania Cv Ab

10/26/17 / #20170306806

A cooling arrangement for a whr-system

A cooling arrangement for a whr-system in a vehicle, includes a first cooling circuit including a first radiator (9) in which a circulating coolant is cooled, and a second cooling circuit including a second radiator (14) in which a coolant is cooled to a lower temperature than the coolant in the first radiator (9). A condenser inlet line (17, 38) directs coolant from one of the cooling circuits to a condenser (19) of the whr-system, and a cooling adjusting device (13, 16, 24, 38) for adjusting the temperature of the coolant in the inlet line (17, 38) to the condenser (19) by the coolant in the other cooling circuit. ... Scania Cv Ab

10/26/17 / #20170305256

Hybrid powertrain, method for controlling such a hybrid powertrain, vehicle comprising such a hybrid powertrain, computer program for controlling such a hybrid powertrain, and a computer program product comprising program code

The present invention relates to a hybrid powertrain and method of controlling same, the hybrid powertrain comprising an internal combustion engine; a gearbox with an input and an output shaft; a range gearbox connected to the output shaft; a first planetary gear connected to the input shaft; a second planetary gear connected to the first planetary gear; a first electrical machine connected to the first planetary gear; a second electrical machine connected to the second planetary gear; one gear pair connected with the first planetary gear and the output shaft; and one gear pair connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft. The range gearbox comprises a third planetary gear with a third sun wheel and a third planetary wheel carrier and a fourth clutch device arranged to connect and disconnect the third sun wheel with/from the third planetary wheel carrier.. ... Scania Cv Ab

10/12/17 / #20170291610

Method to control a hybrid powertrain, vehicle comprising such a hybrid powertrain, computer program for controlling such a hybrid powertrain, and a computer program product comprising program code

A method is provided to control a hybrid powertrain comprising an internal combustion engine; a gearbox with input and output shafts; a range gearbox, connected to the output shaft; a first planetary gear, connected to the input shaft; a second planetary gear, connected to the first planetary gear; a first electrical machine, connected to the first planetary gear; a second electrical machine, connected to the second planetary gear; at least one gear pair, connected with the first planetary gear and the output shaft; and at least one gear pair, connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft. The method comprises the steps: a) engaging a gear by way of connecting two rotatable components in the first planetary gear; b) connecting the at least one gear pair, connected with the second planetary gear and the output shaft; c) connecting a sixth gear pair, arranged between a countershaft and the range gearbox with the countershaft, so that the countershaft is connected with the output shaft via the range gearbox; d) controlling the range gearbox from a low range position to a neutral state, in which no torque transmission occurs through the range gearbox; e) controlling two rotatable components in the range gearbox towards achieving a synchronized rotational speed with the assistance of the first electrical machine; f) connecting the rotatable components with the use of a shiftable third clutch device; and g) engaging a gear by way of connecting two rotatable components in the second planetary gear.. ... Scania Cv Ab

10/12/17 / #20170291607

Method to control a hybrid powertrain, vehicle comprising such a hybrid powertrain, computer program for controlling such a hybrid powertrain, and a computer program product comprising program code

Provided is a method to control a hybrid powertrain to achieve a reverse drive, wherein the hybrid powertrain comprises an internal combustion engine; a gearbox with an input and output shaft; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; one gear pair connected with the first main shaft and the output shaft; and one gear pair connected with the second main shaft and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft. The method comprises: ensuring that moveable component parts in the first planetary gear are disconnected from each other and/or that moveable component parts in the second planetary gear are disconnected from each other; ensuring that an output shaft in the internal combustion engine is prevented from rotating; and controlling the first electrical machine and/or second electrical machine to achieve a negative torque in the output shaft via the first main shaft and/or second main shaft.. ... Scania Cv Ab

10/05/17 / #20170282701

Method to control a hybrid powertrain, vehicle comprising such a hybrid powertrain, computer program to control such a hybrid powertrain, and a computer program product comprising program code

A method is provided to control a hybrid powertrain comprising an internal combustion engine; a gearbox with input and output shafts; a range gearbox connected to the output shaft; a first planetary gear, connected to the input shaft; a second planetary gear, connected to the first planetary gear; first and second electrical machines, respectivley connected to the first and second planetary gears; a gear pair connected with the first planetary gear and the output shaft; and a gear pair, connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected to the input shaft. The method comprises: a) engaging a gear by connecting two rotatable components in the first planetary gear; b) connecting the second or the fourth gear pair; c) connecting a sixth gear pair, arranged between a countershaft and the range gearbox to the countershaft, so that the countershaft is connected with the output shaft via the range gearbox; d) synchronising the rotational speed between two rotatable components in the range gearbox; e) connecting the rotatable components with a shiftable third clutch device; and f) engaging a gear by way of connecting two rotatable components in the second planetary gear.. ... Scania Cv Ab

10/05/17 / #20170282700

Hybrid powertrain and a vehicle with such a hybrid powertrain

The present invention relates to a hybrid powertrain, comprising an internal combustion engine; a gearbox with an input shaft and an output shaft; a first planetary gear, connected to the input shaft; a second planetary gear, connected to the first planetary gear; a first electrical machine, connected to the first planetary gear; a second electrical machine, connected to the second planetary gear; at least one gear pair, connected with the first planetary gear and the output shaft; and at least one gear pair, connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft, wherein a countershaft is arranged between the respective first and second planetary gears and the output shaft; and the countershaft is connected with the output shaft via a range gearbox.. . ... Scania Cv Ab

08/31/17 / #20170246987

System and method for safety improvement during operation of a motor vehicle

A method for safety improvement during operation of a motor vehicle (100) includes the steps of:—determining a prevailing speed of the vehicle (100); automatically activating a warning flasher function (275) on the basis of determined values pertaining to at least some combination of conditions based on: vehicle speed (v) and gradient (l) of the running surface on which the vehicle (100) is travelling, and the speed of the vehicle (100) compared with surrounding traffic and the gradient (l) of the running surface on which the vehicle (100) is travelling. Also a computer program product including program code (p) for a computer (200; 210) for implementing the method is disclosed. ... Scania Cv Ab

08/24/17 / #20170240152

System and method pertaining to braking of a vehicle combination which comprises a tractor vehicle with a towed vehicle

A method pertaining to braking of a vehicle combination (100) which combination comprises a tractor vehicle (110) with a towed vehicle (112), where both are configured to be braked. The tractor vehicle (110) is provided with a first control unit (200) having a function for regulation of coupling force between the tractor vehicle (110) and the towed vehicle (112). ... Scania Cv Ab

08/10/17 / #20170226977

High pressure fuel pump for a fuel system

The present invention relates to a high pressure fuel pump comprising an inlet channel in connection with a first chamber, through which inlet channel fuel is led to the first chamber, a second chamber arranged in connection with the first chamber, an outlet valve arranged in connection with the second chamber and an inlet valve comprising a piston, with a first end section and a second end section. The piston is moveably arranged with the first end section in a third chamber, and the second end section is moveably arranged between the first chamber and the second chamber. ... Scania Cv Ab

08/03/17 / #20170218829

Exhaust manifold for a multicylinder internal combustion engine

The present invention relates to a manifold for receiving exhausts from a multi-cylindrical internal combustion engine. The internal combustion engine has such a firing order that the riser in the manifold receives exhausts from two cylinders during an overlapping stage, simultaneously via an inlet opening arranged upstream and from an inlet opening arranged downstream in the riser. ... Scania Cv Ab

07/20/17 / #20170204794

Method and system for control of a forced induction system

In a method for the control of a supercharge system with several turbine wheels, each of which is arranged in an exhaust conduit from cylinders in a combustion engine, different from the cylinders in whose exhaust conduits the one or several other turbine wheels are arranged, wherein the turbine wheels are arranged to each operate a compressor wheel, arranged in an air inlet conduit to the combustion engine, a value for the rotational speed of the respective turbine wheels is determined, and the rotational speed of the respective turbine wheels is controlled by way of impacting the fuel injection into those cylinders, whose exhaust conduit is connected with the turbine wheel.. . ... Scania Cv Ab

07/13/17 / #20170198663

Pipe unit in a conduit for a gaseous medium

A pipe unit for arrangement in a conduit for a gaseous medium, comprising a pipe-shaped body, a pipe-shaped flexible sealing element, which is fixedly attached at a first end outside the pipe-shaped body and which comprises a flange element at a second end. The flange element is detachably attachable to a flange element in a connecting pipe in the conduit, in order to, when the flange elements are fixed to each other and the pipe unit is accordingly connected with the connecting pipe, to allow movement between the pipe-shaped body and the connecting pipe via the sealing element's flexibility. ... Scania Cv Ab

07/13/17 / #20170198655

Control of an internal combustion engine in a vehicle

Methods and systems are provided for control of a combustion engine in a vehicle. In operation, at least one future speed profile for an actual speed of the vehicle is simulated during a road section ahead based on information about the road section and on knowledge that coasting with the combustion engine shut down will be applied during the road section. ... Scania Cv Ab

07/13/17 / #20170197629

Torque control of a vehicle powertrain based on a time derivative for a dynamic torque

A desired change of a time derivative of dynamic torque (tqfw), provided to an output shaft from an engine in a vehicle, from a current value to a new desired value is determined. A current rotational speed difference (Δωpres) is determined between a first end of the powertrain in a vehicle, which rotates with a first rotational speed (ω1), and a second end of the powertrain, which rotates with a second rotational speed. ... Scania Cv Ab

06/29/17 / #20170184039

Control of a torque demanded from an engine

A method and a system for control of a torque tqdemand requested from an engine in a vehicle, wherein the engine provides a dynamic torque tqfw in response to the torque tqdemand. Control of the requested torque tqdemand is performed such that the control provides a desired value tqfw_req for the dynamic torque and/or a desired derivative tqfw_req for the dynamic torque. ... Scania Cv Ab

06/29/17 / #20170183998

System and method for purification of an exhaust stream by use of two reduction catalysts

An exhaust treatment system comprising a first oxidation catalyst to oxidise nitrogen and/or carbon compounds in an exhaust stream and a first dosage device downstream of said first oxidation catalyst to supply a first additive. A first reduction catalyst device is arranged downstream of said first dosage device for reduction of nitrogen oxides using said first additive, and for the generation of heat, through at least one exothermal reaction with said exhaust stream. ... Scania Cv Ab

06/22/17 / #20170175652

Method for checking the function of a compression release brake system

Function of a compression release brake system of a compression ignited engine with a plurality of cylinders in a motor vehicle is checked by driving a crank shaft of the engine to rotate at a constant speed without injection of fuel into the cylinders while for each cylinder, for the compression release brake system in an inactive state and then in an active state, measuring the torque to be applied for maintaining said speed in a position of said crank shaft where the torque would be influenced by the behavior of that cylinder by a correctly functioning action of said compression release brake system in an active state. The torque values obtained for each cylinder for the compression release brake system in inactive and active state are compared, and the function of the compression release brake system for each individual cylinder of the engine is determined based on the comparison.. ... Scania Cv Ab

06/08/17 / #20170159593

Control of preparatory measures in a vehicle

The present invention presents a method and a system for the control of preparatory measures during a road section, for at least one system. First, one or several parts of a road section are identified, during which parts one or several engines comprised in the vehicle may be shut down. ... Scania Cv Ab

06/08/17 / #20170158204

Control of an combustion engine in a vehicle

Methods, systems, and computer program products are provided for control of a combustion engine in a vehicle. At least one future speed profile for an actual speed of the vehicle during a road section is simulated based on information about the road section, and that coasting will be applied during the road section. ... Scania Cv Ab

06/01/17 / #20170152780

Exhaust treatment system and method for treatment of an exhaust stream

An exhaust treatment system comprising: a first dosage device, arranged to supply a first additive into said exhaust stream; a first reduction catalyst device, downstream of said first dosage device arranged for reduction of nitrogen oxides in said exhaust stream through the use of said first additive; a particulate filter, at least partly comprising a catalytically oxidizing coating, which is downstream of said first reduction catalyst device to catch soot particles, and to oxidize one or several of nitrogen oxide and incompletely oxidized carbon compounds in said exhaust stream; a second dosage device, downstream of said particulate filter to supply a second additive into said exhaust stream; and a second reduction catalyst device, downstream of said second dosage device for a reduction of nitrogen oxides in said exhaust stream, with the use of at least one of said first and said second additive.. . ... Scania Cv Ab

05/11/17 / #20170130665

Fuel system for internal combustion engine and a method to lessen pressure fluctuations in a fuel filter device in a fuel system

A fuel system for an internal combustion engine is provided, which comprises a first fuel tank, a fuel filter device, arranged between a low pressure pump operated by an electric motor and a high pressure pump, a first fuel conduit, through which the low pressure pump is arranged to supply fuel to the fuel filter device, and a control device, arranged in connection with an electric motor operating the low pressure pump. An overflow conduit is arranged in connection with a deaeration outlet, arranged in the fuel filter device and the first fuel tank, and the control device is arranged to control the electric motor, in such a way that the low pressure pump is active when the internal combustion engine is turned off for a limited period, whereby fuel may flow from the fuel filter device via the deaeration outlet and the overflow conduit, back to the first fuel tank.. ... Scania Cv Ab

05/04/17 / #20170122177

System and method for the transfer of fluid in a vehicle

A system for the transfer of fluid in a vehicle includes a main tank (4), a secondary tank (5), a pump (6), a first valve arrangement (11) and a several fluid pathways (13, 15, 17). In response to a control signal, the system is placed into a first condition, in which the first valve arrangement (11) is in a first condition, in which the pump (6) transfers the fluid from the secondary tank (5) to the main tank (4) through the valve arrangement (11), or into a second condition, in which the first valve arrangement (11) is in a second condition and the fluid pathways are blown clean from fluid. ... Scania Cv Ab

05/04/17 / #20170122166

Device and method comprising double reducing devices and a catalytically coated particle filter for treatment of an exhaust stream

An exhaust treatment system comprising: a first oxidation catalyst to oxidize nitrogen compounds and/or hydrocarbon compounds in said exhaust stream; a first dosage device downstream of said first oxidation catalyst to supply a first additive into said exhaust stream; a first reduction catalyst device downstream of said first dosage device for reduction of nitrogen oxides in said exhaust stream using said first additive; a particulate filter, comprising a catalytically oxidizing coating downstream of said first reduction catalyst device to catch soot particles and oxidize one or several of nitrogen oxide and incompletely oxidized carbon compounds in said exhaust stream; a second dosage device downstream of said particulate filter to supply a second additive into said exhaust stream; and a second reduction catalyst device downstream of said second dosage device for a reduction of nitrogen oxides in said exhaust stream, using at least one of said first and second additive.. . ... Scania Cv Ab

03/30/17 / #20170089437

Gearbox for vehicles and vehicles comprising such a gearbox

The invention relates to a gearbox for vehicles, comprising a planetary gear with a ring gear a sun gear and a planet carrier on which at least one planet gear is rotatable mounted, which ring gear and sun gear engages with the at least one planet gear by teeth; and a gearbox housing surrounding the planetary gear. A first axially movable coupling sleeve is in a first gear position arranged to engage the ring gear with the gearbox housing in a second gear position arranged to engage the sun gear with the planet carrier and in a third gear position arranged to engage the planet carrier with the gearbox housing. ... Scania Cv Ab

03/30/17 / #20170089429

Gearbox for a vehicle and vehicle, comprising such a gearbox

A gearbox comprising a planetary gearbox with a ring gear, a sun wheel and a planetary wheel carrier, on which at least one planetary wheel is rotatably mounted, which ring gear and sun wheel engage with the at least one planetary wheel; and a first axially shiftable coupling sleeve, which in a first gear position disconnects an input shaft from the planetary wheel carrier, and in a second gear position disconnects the input shaft with the planetary wheel carrier. A second axially shiftable coupling sleeve arranged to connect a gearbox house with the ring gear in the first gear position, and to disconnect the gearbox house from the ring gear in the second gear position. ... Scania Cv Ab

03/23/17 / #20170082516

Internal combustion engine and method for detecting operating conditions of an internal combustion engine

A combustion engine with a device adapted to detect operating conditions in the engine, and which device has a device with at least one sensor element, arranged separately from a cylinder chamber on a cylinder head of a cylinder in the engine. The sensor element is adapted to detect propagated movements in the cylinder head or in parts adjacent thereto, generated by pressure changes in said cylinder chamber.. ... Scania Cv Ab

03/23/17 / #20170082054

Method and device for diagnosing performance of an internal combustion engine

A method and a device for diagnosis of performance during a combustion process in a combustion chamber in at least one cylinder in a combustion engine. The method comprises the steps: during a working cycle with combustion, detecting movements in a cylinder head belonging to said cylinder or in parts adjacent thereto in the engine, generated at pressure changes arising at the combustion in the combustion chamber, based upon the detected movements, calculating said pressure changes in the combustion chamber, and based upon the calculated pressure changes, determining whether the actual performance differs from the expected performance.. ... Scania Cv Ab

03/23/17 / #20170082003

Method and system for controlling nitrogen oxide emissions from a combustion engine

A treatment system for providing treatment of an exhaust stream comprising nitrogen oxides nox, in which nitrogen monoxide no and nitrogen dioxide no2 are comprised. When the exhaust stream passes through the treatment system, oxidation occurs of compounds comprising nitrogen, carbon and/or hydrogen. ... Scania Cv Ab

03/23/17 / #20170081992

Method and device for diagnose of valves of an internal combustion engine

A method for diagnosis of at least one valve in at least one cylinder in a combustion engine comprising the steps, at a movement of a piston in said cylinder, of detecting movements propagating in a cylinder head of the cylinder or of parts adjacent thereto in the engine, comparing values resulting from the detection step with at least one stored setpoint value, and determining the state of said at least one valve, based on the result of said comparison.. . ... Scania Cv Ab

03/23/17 / #20170080924

Method for starting a combustion engine in a hybrid driveline

The invention relates to a method to start a combustion engine in a hybrid powertrain by a) disconnecting rotatable components of a first planetary gear from each other, b) disconnecting rotatable components of a second planetary gear from each other, c) preventing rotation of at least one gear pair, which is connected with the first planetary gear and an output shaft and at least one gear pair, which is connected with the second planetary gear and the output shaft, prevent rotation of the output shaft, and e) activating a first electrical machine connected to the first planetary gear, and/or a second electrical machine connected to the second planetary gear, so that the combustion engine starts.. . ... Scania Cv Ab

03/16/17 / #20170074139

Exhaust treatment system and method for treatment of an exhaust stream

An exhaust treatment system is provided for treatment of an exhaust stream, where the system comprises a first dosage device, arranged to supply a first additive into said exhaust stream and a first reduction catalyst device, arranged downstream for reduction of nitrogen oxides in said exhaust stream through the use of said first additive, and for the generation of heat through at least one exothermal reaction with said exhaust stream. A particulate filter arranged downstream of said first reduction catalyst device to catch soot particles. ... Scania Cv Ab

03/16/17 / #20170072527

Method of grinding a workpiece and method for determining processing parameters

The present disclosure relates to a grinding method for grinding of non-circular workpieces with an improved productivity and quality of the resulting workpiece. The method comprises a first and a second stage. ... Scania Cv Ab

02/09/17 / #20170038466

Detection of an object by use of a 3d camera and a radar

A method (400) and a 3d camera (110) for a vehicle for detecting an object (130) in an area (140) for collecting (401) measurement data related to the area (140) by a sensor (310) in the 3d camera (110) using a first sensor setting, in addition, reception (402) of measurement data related to the area (140) from a radar (120), and detection (405) of the object (130) based on interpretation of collected (401) measurement data by the camera together with measurement data received (402) from the radar (120).. . ... Scania Cv Ab

02/09/17 / #20170036668

Method for starting a combustion engine in a hybrid driveline

A method is provided to start a combustion engine in a hybrid powertrain, comprising a gearbox with input shaft and output shaft; which combustion engine is connected to the input shaft; a first planetary gear connected to the input shaft; a second planetary gear connected to the first planetary gear; first and second electrical machines, respectively connected to the first and second planetary gears; at least one gear pair, connected with the first planetary gear and the output shaft; and at least one gear pair, connected with the second planetary gear and the output shaft. The method comprises connecting the rotatable components of the second planetary gear with each other by connecting, via a second coupling device, a second sun wheel arranged in the second planetary gear and a second planetary wheel carrier with each other, and activating the first and second electrical machines to start the combustion engine.. ... Scania Cv Ab

02/02/17 / #20170030245

Method and system for monitoring of a physical quantity related to a particulate mass in at least one exhaust pipe

Methods and systems are provided to monitor a quantity relating to particulate mass m in at least one exhaust pipe arranged downstream of a combustion engine. A first determination device determines a reduction Δ of a pressure difference dp over at least one or several particulate filters, arranged downstream of the combustion engine. ... Scania Cv Ab

02/02/17 / #20170030235

Device and method for impacting the amount of nitrogen oxides in exhaust gases from an internal combustion engine

A method and an exhaust treatment system are provided for treatment of an exhaust stream that comprises nitrogen oxides nox. The method comprises using a first slip-catalyst sc1, arranged at a first device to create a first impact on a first amount of nitrogen oxides nox_1 an nox-storing catalyst may store nitrogen oxides nox. ... Scania Cv Ab

02/02/17 / #20170028982

Method for controlling a hybrid driveline for reducing electrical losses

A method is provided to control a hybrid powertrain, comprising: a) engaging a gear corresponding to either a gear pair connected with a first planetary gear in the gearbox or corresponding to a gear pair connected with a second planetary gear and an output shaft; b) selecting a gear by connecting two rotatable components in the first planetary gear with each other, via a first coupling device and/or connecting two rotatable components in the second planetary gear with each other, via a second coupling device; and c) controlling a switch such that a first electrical machine is set into a waiting state, if the second coupling device connects the two rotatable components of the second planetary gear with each other, and such that a second electrical machine is set into a waiting state, if the first coupling device connects the two rotatable components of the first planetary gear with each other.. . ... Scania Cv Ab

01/26/17 / #20170023105

Gearbox for vehicles and vehicle, comprising such a gearbox

A gearbox is provided comprising a planetary gearbox with a ring gear, sun wheel and planetary wheel carrier, on which at least one planetary wheel is mounted in a rotatable manner and is engaged via teeth with the ring gear and sun wheel; a first axially shiftable coupling sleeve, which in first gear position disconnects an input shaft to the gearbox from the planetary wheel carrier, and in a second gear position connects the input shaft with the planetary wheel carrier; and a second axially shiftable coupling sleeve, which in the first gear position connects a gearbox house surrounding the planetary gearbox with the ring gear, and in the second gear position disconnects the gearbox house from the ring gear. An axial stop, mounted on the planetary wheel carrier, abuts against and is connected with the ring gear and prevents the ring gear from shifting axially.. ... Scania Cv Ab

01/26/17 / #20170021819

Method for controlling a hybrid vehicle driveline

A method is provided to control a hybrid powertrain comprising engaging gears corresponding to a first gear pair connected with a first planetary gear in a gearbox with a first coupling device connecting two rotatable components in the first planetary gear; activating a second electrical machine to generate a propulsion torque on the output shaft via a second gear pair connected with a second planetary gear and the output shaft; disconnecting the first gear pair from the countershaft, by controlling the first electrical machine and a combustion engine connected with the first planetary gear to achieve a substantially zero torque state between the first gear pair; connecting the first gear pair to the countershaft, by controlling the combustion engine to achieve a synchronous rotational speed between the first gear pair; and activating the combustion engine and/or the first electrical machine to generate a propulsion torque on the output shaft.. . ... Scania Cv Ab

01/26/17 / #20170021818

Method for takeoff of a vehicle with a hybrid driveline

A method is provided for moving off of a vehicle with a hybrid drive line, comprising a combustion engine; a gearbox with input shaft connected to the combustion engine and output shaft; a first planetary gear, which is connected to the input shaft, a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; a first and second electrical machines respectively connected to the first and second planetary gears; a gear pair connected with the first main shaft; and a gear pair connected with the second main shaft. The method comprises: a) ensuring that the rotatable components of the first and second planetary gears are respectively disconnected from each other, b) ensuring that the corresponding gear pairs are engaged, and c) activating the first and second electrical machines so that a torque is generated in the output shaft.. ... Scania Cv Ab

01/19/17 / #20170015325

Method for takeoff of a vehicle comprising a hybrid driveline

A method is provided for moving off of a vehicle with a hybrid powertrain, comprising a combustion engine; a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears and capable of operating each other; one gear pair connected with the first planetary gear and output shaft; and one gear pair connected with the second planetary gear and output shaft. The method comprising, while the combustion engine is in operation: a) ensuring that the rotatable components of the first and second planetary gears are respectively disconnected from each other, b) ensuring that at least one gear is engaged, corresponding to the one gear pair connected with the first planetary gear, and/or the one gear pair connected with the second planetary gear, and c) activating the first and second electrical machines, where total power output from the electrical machines is zero, and so that a torque is generated in the output shaft.. ... Scania Cv Ab

01/19/17 / #20170015310

Method for starting a combustion engine in a hybrid driveline

A method is provided to start a combustion engine in a hybrid powertrain, comprising a gearbox with input and output shafts; a first planetary gear, connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; one gear pair connected with the first main shaft, and therefore with the first planetary gear and the output shaft; and one gear pair connected with the second main shaft. The method comprises: a) connecting an output shaft of the combustion engine with the input shaft of the gearbox, via a coupling device arranged between the output shaft and the input shaft; and b) controlling the first and second electrical machines to start the combustion engine.. ... Scania Cv Ab

01/19/17 / #20170015309

Method for starting a combustion engine in a hybrid driveline

Method is disclosed to start a combustion engine in a hybrid powertrain, comprising a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; a gear pair connected with the first main shaft, first planetary gear, and output shaft; and a gear pair connected with the second main shaft, second planetary gear and output shaft. The method comprises: determining a desired torque in the output shaft and a torque in a combustion engine output shaft required to start the combustion engine and controlling the first and second electrical machines such that the desired torque in the output shaft and the torque required in the combustion engine output shaft is achieved.. ... Scania Cv Ab

01/19/17 / #20170015307

Method for controlling a hybrid vehicle driveline

A method is provided to control a hybrid powertrain, comprising a combustion engine; a gearbox with input and output shafts, which combustion engine is connected to the input shaft; a first planetary gear connected to the input shaft; a second planetary gear connected to the first planetary gear; first and second electrical machines respectfully connected to the first and second planetary gears; first gear pair connected with the first planetary gear and output shaft; and second gear pair connected with the second planetary gear and output shaft. The method comprises: a) engaging gears in the first and second gear pairs; and b) connecting two rotatable components in the second planetary gear with a second coupling device.. ... Scania Cv Ab

01/19/17 / #20170015306

Method for controlling a hybrid vehicle driveline

A method is provided to control a hybrid powertrain, comprising a combustion engine; a gearbox with an input shaft connected to the combustion engine and an output shaft; a first planetary gear connected to the input shaft a second planetary gear connected to the first planetary gear; first and second electrical machines respectively connected to the first and second planetary gears; first gear pair connected with the first planetary gear and the output shaft; and second gear pair connected with the second planetary gear and the output shaft. The method comprises: a) engaging gears corresponding to the first gear pair and to the second gear pair; and b) connecting a second sun wheel, arranged in the second planetary gear and a second planetary wheel carrier with each other, with the use of a second coupling device.. ... Scania Cv Ab

01/19/17 / #20170015305

Method for controlling a hybrid driveline

A method is provided to control a hybrid powertrain to achieve a desired engine speed in a combustion engine, said powertrain comprising: a gearbox with input and output shafts with the combustion engine connected to the input shaft; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectfully connected to the first and second planetary gears; first gear pair connected with the first main shaft; and second gear pair connected with the second main shaft. The method comprises a) ensuring that two rotatable components in the first planetary gear are connected; b) ensuring that all rotatable components in the second planetary gear are disconnected; c) ensuring that a gear is engaged in the first gear pair, d) ensuring that the second gear pair is disconnected; e) controlling the second electrical machine so that a desired torque is achieved in the output shaft; f) controlling the combustion engine to a desired engine speed; and g) controlling the first electrical machine so that a desired total power consumption for the first and the second electrical machines is achieved.. ... Scania Cv Ab

01/19/17 / #20170015304

Method for controlling a hybrid driveline

A method is provided for controlling a hybrid powertrain, comprising a combustion engine; a gearbox with input and output shafts; a first planetary gear connected to the input; a second planetary gear connected to the first planetary gear; first and second electrical machines capable of operating each other and respectively connected to the first planetary gear and to the second planetary gear; one gear pair connected with the first planetary gear and the output shaft; and one gear pair connected with the second planetary gear and the output shaft. The method comprising, while the combustion engine is operating: ensuring that gears are engaged in the one gear pair connected with the first planetary gear and the one gear pair connected with the second planetary gear, and activating the first and second electrical machines so that total emitted electrical power is zero and a torque is generated in the output shaft.. ... Scania Cv Ab

01/19/17 / #20170015303

Method for controlling a driveline in order to optimize fuel consumption

A method is provided to start a hybrid powertrain to optimize fuel consumption, wherein such hybrid powertrain comprises a combustion engine; a gearbox with input shaft and output shaft; a first planetary gear, connected to the input shaft and a first main shaft; a second planetary gear, connected to the first planetary gear and a second main shaft; first and second electrical machines respectively, connected to the first and second planetary gears; one gear pair connected with the first main shaft; and one gear pair connected with the second main shaft. The method comprising: ensuring that the moveable parts of each of the first and second planetary gears are respectively disconnected from each other; bringing the combustion engine to a predetermined engine speed (nice); and controlling the first and the second electrical machine in such a way that a desired torque (tdrv) is achieved in the output shaft.. ... Scania Cv Ab

01/19/17 / #20170015300

Method for controlling a hybrid driveline in order to achieve gear change without interruption of torque

A method is provided to control a hybrid powertrain to achieve gear shifts without torque interruption, comprising a gearbox with input shaft and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; a first gear pair and a third gear pair between the first main shaft and a countershaft; and a second gear pair between the second main shaft and the countershaft, which is connected with the output shaft via a fifth gear pair. The method comprises disconnecting the first gear pair; connecting the first planetary gear with the output shaft via a coupling mechanism connecting the first main shaft and output shaft; disconnecting the fifth gear pair; transferring torque generated from the combustion engine from the second planetary gear to the countershaft via the second gear pair; and transferring a torque from the countershaft to the output shaft via the third gear pair.. ... Scania Cv Ab

01/19/17 / #20170015299

Method for controlling a hybrid driveline in order to optimize torque from a combustion engine arranged at the driveline

A method is provided to control a hybrid powertrain that comprises: a combustion engine; a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear, connected to the first planetary gear and a second main shaft; first and second electrical machines, respectively connected to the first and second planetary gears; one gear pair connected with the first planetary gear and output shaft; and one gear pair connected with the second planetary gear and output shaft. The method comprises: disconnecting a first planetary wheel carrier and a first sun wheel or disconnecting a second planetary wheel carrier and a second sun wheel from each other; b) controlling the combustion engine to a predetermined engine speed; and c) controlling the first and second electrical machines so that a desired torque is achieved in the output shaft, while a requested total power consumption of the first and the second electrical machines is achieved.. ... Scania Cv Ab

01/05/17 / #20170002702

Combustion engine, vehicle comprising the combustion engine and method for controlling the combustion engine

A method to control a four-stroke combustion engine, comprising at least one cylinder; a piston arranged in each cylinder; at least one inlet valve arranged in each cylinder which is connected with an inlet system; at least one first camshaft which controls each inlet valve; at least one exhaust valve arranged in each cylinder which is connected with an exhaust system; at least one second camshaft which controls each exhaust valve; and a crankshaft which controls each camshaft. At least one phase-shifting device is arranged between the crankshaft and the second camshaft, to phase-shift the second camshaft in relation to the crankshaft to a state, where the exhaust valve is controlled in such a way, that it is opened during the expansion stroke of the engine and closed during the exhaust stroke of the engine, to achieve engine braking through compression in the cylinders during the exhaust stroke.. ... Scania Cv Ab

01/05/17 / #20170001643

A method of braking a vehicle towards stop

Disclosed is a method for control of a vehicle with a drive system comprising a planetary gear and a first and second electrical machine, connected with their rotors to the components of the planetary gear, a braking of the vehicle towards stop occurs by way of a distribution of the desired braking torque between the first and the second electrical machines, and wherein such electrical machines are controlled to transmit a total torque to an output shaft of the planetary gear, which corresponds to the desired braking torque at least to one predetermined low speed limit, before the vehicle stops.. . ... Scania Cv Ab

01/05/17 / #20170001635

Propulsion system for a vehicle

A drive system for a vehicle comprises an electrical machine, arranged between a combustion engine and an input shaft to a gearbox. The rotor of the electrical machine is connected with a component of a planetary gear, and the input shaft of the gearbox is connected with another component of such planetary gear. ... Scania Cv Ab

01/05/17 / #20170001634

Propulsion system for a vehicle

A drive system for a vehicle comprises two electrical machines arranged between a combustion engine and an input shaft to a gearbox. The first machine rotor is connected with a planetary gear component, and the input shaft of the gearbox with another planetary gear component. ... Scania Cv Ab

01/05/17 / #20170001633

Propulsion system for a vehicle

A drive system for a vehicle comprises two electrical machines arranged between a combustion engine and an input shaft to a gearbox. The first electrical machine rotor is connected with a planetary gear component, and the input shaft of the gearbox is connected with another planetary gear component. ... Scania Cv Ab

01/05/17 / #20170001632

A method of starting a combustion engine of a driving vehicle

In a method for controlling a vehicle with a drive system comprising an output shaft of a combustion engine and a planetary gear with a first and a second electrical machine, connected via their rotors to the components of the planetary gear, the combustion engine is started while the vehicle is driven by ensuring that the rotor of the second electrical machine is connected with the output shaft of the combustion engine, and controlling such electrical machine's rotational speed towards the combustion engine's idling speed, whereupon fuel injection into the combustion engine is carried out to start the latter.. . ... Scania Cv Ab

01/05/17 / #20170001631

A method of supplying electrical appliances of a vehicle

Disclosed is a method for control of a vehicle with a drive system comprising an output shaft in a combustion engine and a planetary gear with a first and a second electrical machine connected via their rotors to the components in the planetary gear, a supply of electrical power to electrical auxiliary units and/or loads present in the vehicle is carried out, by way of the combustion engine being kept running with its output shaft connected with the second electrical machine's rotor, and the electrical auxiliary units and/or loads being supplied with electrical power via the first electrical machine and/or the second electrical machine.. . ... Scania Cv Ab

01/05/17 / #20170001630

A method of turning off a combustion engine of a driving vehicle

In a method for controlling a vehicle with a drive system comprising an output shaft in a combustion engine, a planetary gear and a first and second electrical machine connected to the planetary gear, the turning off of the combustion engine is achieved when the vehicle is driven with the combustion engine running, and a transition to operation of the vehicle with the electrical machines is achieved by ensuring that the second electrical machine's rotor is connected with the combustion engine's output shaft, that injection of fuel into the combustion engine is interrupted and that the second electrical machines rotational speed is controlled towards and until a standstill, whereupon the combustion engine's output shaft is disconnected from the second electrical machine and the planetary gear.. . ... Scania Cv Ab

01/05/17 / #20170001627

Method of unlocking a planetary gearing when driving a vehicle

In a method for controlling a vehicle with a drive system comprising a power unit configuration adapted to provide output for the vehicle's operation, and further comprising a planetary gear and a first and second electrical machine, connected to components in the planetary gear via their rotors, a locking means is moved from a locked position, in which two of the planetary gear's components are locked together, so that the three components of the planetary gear rotate with the same speed, to a release position, when the vehicle is driven with the locking means in a locked position, by carrying out the following method steps. The power unit configuration is controlled in order to achieve torque balance between the components that are locked together by the locking means, and such locking means are moved into a release position, when said torque balance prevails.. ... Scania Cv Ab

01/05/17 / #20170001626

A method of locking a planetary gearing when driving a vehicle

In a method for controlling a vehicle with a drive system comprising a power unit configuration adapted to provide power for the vehicle's operation, and further comprising a planetary gear and a first and second electrical machine, connected to components in the planetary gear via their rotors, a locking means is moved from a release position, in which the planetary gear's components are free to rotate independently of each other, to a locked position, in which two of the planetary gear's components are locked together, so that the three components in the planetary gear rotate with the same speed. The power unit configuration is controlled in order to achieve a synchronous, or substantially synchronous, rotational speed between the input and output shaft of the planetary gear, and the locking means are then moved to the locked position.. ... Scania Cv Ab

01/05/17 / #20170001621

Method of starting a vehicle with power balance

Disclosed is a method for control a vehicle with a drive system comprising an output shaft of a combustion engine and a planetary gear with a first and a second electrical machine, connected via their rotors to the components of the planetary gear, the vehicle is started by controlling the first electrical machine to achieve a torque thereof, so that the requested torque is transmitted to the planetary gear's output shaft, and controlling the second electrical machine to achieve a torque, so that the desired power to electrical auxiliary aggregates and/or loads in the vehicle, and/or electric energy storage means, if present in the vehicle, for exchange of electric energy with the first and second electrical machine is achieved.. . ... Scania Cv Ab

01/05/17 / #20170001620

A traction system for a vehicle

A drive system for a vehicle comprises two electrical machines arranged between a combustion engine and an input shaft to a gearbox. The first machine's rotor and the input shaft of the gearbox are each connected to a separate component of a planetary gear. ... Scania Cv Ab








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