Abstract: Actuator arrangement for a drive train, which has at least one friction clutch for transmitting drive torque and has a transmission. The friction clutch can be actuated by means of a hydraulic clutch cylinder, which is connected directly to a pump port of a pump driven by an electric motor in order to actuate the friction clutch, such that the friction clutch can be actuated by varying the speed of the pump. The actuator arrangement has a parking lock actuator device for actuating a parking lock arrangement of the drive train. The parking lock actuator device has at least one hydraulic parking lock cylinder, which can be connected to the pump, such that the parking lock arrangement can be actuated by varying at least one of the direction of rotation or the speed of the pump.

Abstract: A shaft arrangement for a transmission comprises a shaft having an axial bore connected to an oil supply system, at least one loose wheel rotatably supported on the shaft via a bearing, and a shift clutch arrangement which connects the loose wheel for rotation with the shaft. The shift clutch arrangement comprises a guide sleeve connected for rotation with the shaft via a tooth engagement. The axial bore supplies oil to the bearing and shift clutch arrangement via a transversal bore in an area of the tooth engagement between the guide sleeve and the shaft. A channel in at least one of an area of a toothing of the guide sleeve and an area of the toothing of the shaft, which, together with the guide sleeve toothing, forms the tooth engagement connects the transversal bore with an area between the guide sleeve and the bearing.

Abstract: A clutch arrangement for connecting two components, which can rotate relative to one another, of a motor vehicle drive train, in particular for connecting two shafts of a transmission or a shaft to an idler gear rotatably mounted on the shaft. The clutch arrangement has a clutch and an actuator arrangement. The clutch is opened in a first actuator position of an actuator section of the actuator arrangement. The clutch arrangement has a locking device for locking the actuator section in a locked position to keep the clutch closed. The locking device has a slotted-link guide with a first guide section and a second guide section for the actuator section, wherein the locked position can be reached from the first actuator position via the first guide section, and wherein the first actuator position can be reached from the locked position via the second guide section.

Abstract: Drive train for a motor vehicle, having an electric machine for providing motive power, and a transmission arrangement. The transmission arrangement has a transmission input shaft and a first and a second gear stage. The transmission input shaft is connected to the electric machine. The drive train has a differential, which is connected to an output of the transmission and is set up to distribute motive power to two drive shafts. The differential is connected to a helically toothed driving gear, which is in engagement with a helically toothed pinion of the transmission output. A pressure pad arrangement absorbs axial forces arising from the helical toothing.

Abstract: A shaft arrangement for a transmission comprises a shaft having an axial bore into which oil can be introduced via an oil supply system, at least one loose wheel which is rotatably supported on the shaft via a bearing, and a shift clutch arrangement which is arranged for connecting the loose wheel with the shaft in a rotationally fixed manner. The shift clutch arrangement comprises a guide sleeve which is connected with the shaft via a tooth engagement in a rotationally fixed manner. The axial bore is connected via at least one transversal bore with the outer circumference of the shaft, so as to supply oil to the bearing and to the shift clutch arrangement. The transversal bore is arranged in an area of the tooth engagement between the guide sleeve and the shaft. A channel is provided in at least one of an area of a toothing of the guide sleeve and an area of the toothing of the shaft, which, together with the guide sleeve toothing, forms the tooth engagement.

Abstract: An all-wheel drivetrain for a motor vehicle, which has at least two driven axles, comprising a characteristic torque converter transmission of longitudinal construction. To the input side of the transmission drive power is fed and the transmission serves for converting a characteristic of a drive engine. The output side of the transmission is connected to a transfer device, by means of which the drive power can be distributed to the two axles. The transmission has an output shaft which is connected to a first drive shaft for the first axle, and a countershaft parallel thereto. The output shaft and the countershaft are connected to one another by means of a first constant transmission ratio. The countershaft is connected by means of a second constant transmission ratio to a second drive shaft for the second axle. The transfer device is arranged coaxially with the second drive shaft.

Abstract: A dual clutch arrangement with an input shaft, with a first friction clutch, and with a second friction clutch. The input element of the first friction clutch is connected to the input shaft and the output element thereof is connected to a first output shaft. The input element of the second friction clutch is connected to the input shaft and the output element thereof is connected to a second output shaft. The output shafts are connectable to corresponding input shafts of a dual clutch transmission. An electric machine is connected to the first output shaft. The electric machine is arranged coaxially with the first friction clutch.

Abstract: A shaft arrangement for a transmission comprises a shaft having an axial bore into which oil can be introduced via an oil supply system, at least one loose wheel which is rotatably supported on the shaft via a bearing, and a shift clutch arrangement which is arranged for connecting the loose wheel with the shaft in a rotationally fixed manner. The shift clutch arrangement comprises a guide sleeve which is connected with the shaft via a tooth engagement in a rotationally fixed manner. The axial bore is connected via at least one transversal bore with the outer circumference of the shaft, so as to supply oil to the bearing and to the shift clutch arrangement. The transversal bore is arranged in an area of the tooth engagement between the guide sleeve and the shaft. A channel is provided in at least one of an area of a toothing of the guide sleeve and an area of the toothing of the shaft, which, together with the guide sleeve toothing, forms the tooth engagement.

Abstract: A transmission configuration includes an automated dual-clutch transmission having two transmission sections with respective input shafts, respective output shafts and respective motor clutches. The motor clutches are connected, on a motor side thereof, to a drive shaft and to a respective one of the input shafts on a transmission side thereof. A drive-side speed sensor unit is disposed at the drive shaft. An input-side speed sensor configuration includes sensor wheels connected, fixed against relative rotation, to respective ones of the input shafts, and pulse sensors disposed stationary with respect to a housing and within an effective range of the respective sensor wheels. The input-side speed sensor configuration is configured to detect a speed of the input shafts and a direction of rotation of at least one of the input shafts. A method for controlling an automated dual-clutch transmission is also provided.

Abstract: A transmission configuration includes an automated dual-clutch transmission having two transmission sections with respective input shafts, respective output shafts and respective motor clutches. The motor clutches are connected, on a motor side thereof, to a drive shaft and to a respective one of the input shafts on a transmission side thereof. A drive-side speed sensor unit is disposed at the drive shaft. An input-side speed sensor configuration includes sensor wheels connected, fixed against relative rotation, to respective ones of the input shafts, and pulse sensors disposed stationary with respect to a housing and within an effective range of the respective sensor wheels. The input-side speed sensor configuration is configured to detect a speed of the input shafts and a direction of rotation of at least one of the input shafts. A method for controlling an automated dual-clutch transmission is also provided.

Abstract: A method for controlling a hydraulic circuit for a twin-clutch transmission, wherein the hydraulic circuit comprises a first and a second clutch that can be hydraulically actuated, the pressures of said clutches being controlled with respective pressure control valves, and wherein a safety circuit substantially guarantees a safe state for the hydraulic circuit if a malfunction occurs. The safety circuit is configured such that if a partial malfunction affecting only one of the two clutches occurs, the affected clutch is disengaged and if a total malfunction affecting both clutches occurs, the clutch with the lower clutch pressure at the time of the total malfunction is disengaged and the other clutch with the higher clutch pressure at the time of the total malfunction remains engaged to maintain the transfer of torque via said clutch.

Abstract: What is proposed is a variator disk for a toroidal variator, in particular for a motor vehicle toroidal transmission. The variator disk has a curved running surface which is oriented coaxially with respect to a variator axis and on which rollers of the toroidal variator can roll. The variator disk having furthermore at least two partial disks which are designed as a traction disk, on which the running surface is formed, and as a supporting disk, respectively. The supporting disk is designed for supporting axial forces applied to the running surface. The traction disk is supported on the supporting disk in the radial direction to the variator axis.

Abstract: A dual clutch arrangement with an input shaft, with a first friction clutch, and with a second friction clutch. The input element of the first friction clutch is connected to the input shaft and the output element thereof is connected to a first output shaft. The input element of the second friction clutch is connected to the input shaft and the output element thereof is connected to a second output shaft. The output shafts are connectable to corresponding input shafts of a dual clutch transmission. An electric machine is connected to the first output shaft. The electric machine is arranged coaxially with the first friction clutch.

Abstract: A method for controlling a hydraulic circuit for a twin-clutch transmission, wherein the hydraulic circuit comprises a first and a second clutch that can be hydraulically actuated, the pressures of said clutches being controlled with respective pressure control valves, and wherein a safety circuit substantially guarantees a safe state for the hydraulic circuit if a malfunction occurs. The safety circuit is configured such that if a partial malfunction affecting only one of the two clutches occurs, the affected clutch is disengaged and if a total malfunction affecting both clutches occurs, the clutch with the lower clutch pressure at the time of the total malfunction is disengaged and the other clutch with the higher clutch pressure at the time of the total malfunction remains engaged to maintain the transfer of torque via said clutch.

Abstract: What is proposed is a variator disk for a toroidal variator, in particular for a motor vehicle toroidal transmission. The variator disk has a curved running surface which is oriented coaxially with respect to a variator axis and on which rollers of the toroidal variator can roll. The variator disk having furthermore at least two partial disks which are designed as a traction disk, on which the running surface is formed, and as a supporting disk, respectively. The supporting disk is designed for supporting axial forces applied to the running surface. The traction disk is supported on the supporting disk in the radial direction to the variator axis.

Abstract: An automated drive train is provided for a motor vehicle comprising a single friction clutch, which is actuatable by a first actuator. A step transmission connected to the output side of the friction clutch comprises wheel sets to engage and disengage forward gears. A plurality of partial load positive gear shift clutches are provided which each include a synchronization means and which are actuatable by means of second actuators for engaging and disengaging the gears. A controller is provided for controlling the actuators such that the drive train is controlled to carry out a gear change under one of the three possible modes (A, B, C) depending on the conditions of the gear change to be made, wherein the three possible modes (A, B, C) of gear changes take place with an opened (C), a closed (B) or with a slipping (A) friction clutch.

Abstract: A differential gear for a motor vehicle, comprises a casing, an input shaft, two output shafts, and a differential supported within the casing. The casing comprises two casing parts connected to each other along a separation plane which is oriented perpendicular with respect to the output shafts. At least one of the two casing parts comprises a projection which serves as a hollow carrier. The projection comprises an attachment spot for attaching the casing to a body of the motor vehicle, and is arranged above a rest oil level within the casing, wherein a retaining element is arranged within the casing at the entrance of the projection. The retaining element limiting the flow of oil which has been thrown into the projection, back into the casing.

Abstract: A differential gear for a motor vehicle, comprising:

Abstract: A motor vehicle stepped transmission comprises a transmission input shaft ich is driven by an engine output shaft via a separating clutch. Further, it comprises a transmission output shaft arranged colinearly with the transmission input shaft. A countershaft is arranged parallel to the transmission output shaft. A plurality of gearwheel sets is provided for establishing forward and reverse gears within the transmission. A sub-plurality of the gearwheel sets each comprises a loose wheel. The loose wheels are rotatably arranged on a shaft and are adapted to be rigidly connected to the shaft by means of a gearshift clutch for shifting into one of a sub-plurality of the forward and reverse gears. Another of the gearwheel sets is associated to another of the forward and reverse gears and is adapted to be switched by means of a friction clutch. A toothed wheel within the other gearwheel set and associated to the other gear is arranged on an additional shaft extending parallel to the transmission output shaft.

Abstract: A change gear unit has an output shaft which can be engaged into a drive connection with a parallel input shaft. The output shaft can be engaged into the drive connection by at least three gear wheel stages in order to form forward gears. Also, the output shaft can be engaged with a vehicle axle differential gear unit by two gear wheel stages. The differential gear unit has output shafts that are parallel with respect to the central axis of the change gear unit.