Abstract: Fluid filter arrangement for a motor vehicle drive train. The filter arrangement comprises a filter housing, which has a fluid inlet and a fluid outlet, allowing fluid to flow in one flow direction from the fluid inlet to the fluid outlet. A filter insert is arranged in the filter housing and divides an interior of the filter housing into an inlet region connected to the fluid inlet and an outlet region connected to the fluid outlet. The filter insert has a filter medium for filtering fluid. The filter insert has a perforated plate having a plurality of holes. The holes are arranged ahead of the filter medium in the flow direction. The size of at least some of the holes is adapted so that fluid impinges upon the filter medium at an increased flow velocity.

Abstract: A gearbox for a motor vehicle. The gearbox comprises at least one fluid supply system. The fluid supply system comprises at least one pump. The fluid supply system comprises at least one fluid sump. The fluid supply system comprises at least one fluid reservoir. The fluid reservoir comprises at least a first fluid outflow leading into the fluid sump. The first fluid outflow can be controlled as a function of a state variable.

Abstract: A drive train cooling arrangement for motor vehicles has a first cooling circuit and a second cooling circuit and has a pump arrangement, by means of which coolant can be fed to the first and the second cooling circuit. The pump arrangement has a bidirectional pump, which has a first pump port and a second pump port and which can be driven by a pump electric motor. The first pump port is connected to the first cooling circuit, wherein the second pump port is connected to the second cooling circuit. A coolant volume flow which is provided for at least one of the first and the second cooling circuit can be adjusted by changing the rotational speed of the pump electric motor.

Abstract: A drive train for a motor vehicle, having a drive unit which comprises a prime mover, a multi-step transmission and a power-splitting device which distributes the driving power between a first and a second drive shaft of a driven axle. The transmission comprises a transmission input and a first sub-transmission and a second sub-transmission. The prime mover is directly connected to the transmission input, wherein each of the two drive shafts is assigned a first and a second friction clutch. The first friction clutches connect the respective drive shaft to the first sub-transmission. The second friction clutches connect the respective drive shaft to the second sub-transmission. The first friction clutches and the second friction clutches form the power-splitting device.

Abstract: A parking mechanism arrangement for a motor vehicle transmission has a housing and a shaft supported so that it can rotate in relation to the housing. A parking mechanism gear is rotationally fixed to the shaft and comprises a parking mechanism tooth system. A parking mechanism pawl is supported so that it can pivot about a pawl axis in relation to the housing and comprises a pawl tooth, which is capable of engaging in a tooth space of the parking mechanism tooth system in order to establish a locked position. An actuating mechanism comprises an actuating element, which acts upon an actuating portion of the parking mechanism pawl in order to pivot the parking mechanism pawl from a release position into the locked position. The actuating element is embodied as a cam ring, which is arranged concentrically with the shaft and which comprises a cam portion, which acts on the actuating portion in order to establish the locked position.

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: Spring pack for a clutch arrangement of a motor vehicle drivetrain. The spring pack has a first ring element, has a second ring element and has a multiplicity of individual springs which are coupled to the first and the second ring elements such that the first and the second ring elements are movable relative to one another in an axial direction in a manner coupled by the springs. The first and the second ring elements each have an inner circumferential section and an outer circumferential section. At least one of the first and the second ring elements has, in the region of at least one of its inner circumferential section and its outer circumferential section, a multiplicity of radially deformable elements which are designed so as to enable the spring pack to be centered in relation to a ring surface or so as to enable the spring pack to be mounted captively on the ring surface.

Abstract: A parking lock arrangement for a motor vehicle transmission has a housing. A parking lock wheel is connectable to a shaft of the motor vehicle transmission. A parking lock pawl is pivotable between a parking lock position and a release position about a pawl axis mounted on the housing. In the parking lock position, the parking lock pawl is in engagement with the parking lock wheel and prevents the rotation thereof. The parking lock arrangement comprises an actuating mechanism for the parking lock pawl and an actuator arrangement for the actuating mechanism. The actuator arrangement has a control member which is movable between a home position and a parking position and is coupled to the actuating mechanism. An actuating member is coupled to the control member via a releasable coupling device and to the actuating mechanism, wherein the actuating member is furthermore mechanically preloaded in one direction in order, via the actuating mechanism, to press the parking lock pawl into the parking lock position.

Abstract: Nozzle arrangement for fluid applications, in particular for a hydraulic circuit of a motor vehicle drive train. A nozzle body has a first longitudinal end and a second longitudinal end. The nozzle body has a first longitudinal section having a cylindrical outer circumference, which has a first outside diameter. The nozzle body has a blind hole starting from the first longitudinal end. In the region of the second longitudinal end, the nozzle body has a second longitudinal section having a second outside diameter, which is smaller than the first outside diameter. A third longitudinal section is formed between the first longitudinal section and the second longitudinal section. A substantially radially aligned nozzle bore connects the outer circumference of the third longitudinal section to the blind hole.

Abstract: Shift arrangement for a motor vehicle transmission. At least one gear stage can be engaged and disengaged by means of an associated shift clutch. A spindle which is aligned along a spindle axis, has a spindle thread and is rotatably mounted on a housing. A nut has a nut thread, which is in engagement with the spindle thread. A shift finger is formed on the nut. At least one shift rod is mounted movably on the housing and can be coupled to the shift clutch. Provided on the housing are a radial groove, in which the shift finger engages in an axial base position of the nut and within which the shift finger can be turned, and an axial guide, which axially adjoins the radial groove and in which the shift finger can engage in order to hold the nut in the circumferential direction, thus ensuring that said nut is moved axially in a first axial direction when the spindle is rotated.

Abstract: An actuator arrangement for a motor vehicle drivetrain, in particular for a dual-clutch arrangement. A first fluid cylinder is connected via a first fluid connection to a fluid supply device. A second fluid cylinder is connected via a second fluid connection to the fluid supply device. A pressure measuring arrangement has a single pressure sensor which is connected by means of a connecting arrangement to the first fluid connection and to the second fluid connection.

Abstract: A method for actuating a component of a drive train of a motor vehicle. The component is mechanically prestressed into a safe state. The method has the steps: sensing a fault state; sensing whether the fault state is a first or second type of fault state; immediate interruption of the actuation of the component so that the component is passively transferred into the safe state by the mechanical prestress if the fault state, is of the first type of fault state, or actuation of the component in such a way that the component is actively transferred into the safe state if the fault state is of the second type of fault state.

Abstract: A parking lock arrangement for a motor vehicle transmission has a blocking arrangement actuatable between a release position and a blocking position. The blocking arrangement is designed to immobilize a motor vehicle in the blocking position. The parking lock arrangement has an arrangement for actuating the blocking arrangement. The actuating arrangement has a cam disc supported on a housing and driveable for rotation and has an actuating cam portion that extends over a first circumferential region of the cam disc that is greater than 5° and less than 180°. The actuating arrangement has a lever supported pivotably on the housing and coupled to the blocking arrangement. The lever is connected to a driving feature that is coupled to the cam disc, such that, when the cam disc is rotated, the driving feature is taken along by the actuating cam portion in such a way that the lever is pivoted in order to actuate the blocking arrangement.

Abstract: A bearing arrangement is provided having an axial securing ring that inserts into a bearing-seat radial groove of a bearing carrier to secure an anti-friction bearing axially in relation to the bearing carrier. The axial securing ring is an open flat ring with an annular section. Radially projecting lugs are provided at each end of the annular section. The radial width of the annular section is substantially constant over the circumference of the annular section. The lugs are produced by bending the axial securing ring with respect to the annular section. The axial securing ring is plane-ground on its axial sides.

Abstract: A hybrid drivetrain for a motor vehicle has a first drive unit which has a first drive device by means of which first drive power can be provided. A second drive unit has a second drive device by means of which second drive power can be provided. A drive output device can be connected to driven wheels of the motor vehicle. A first gearbox arrangement has a first gearbox input and a first gearbox output. A second gearbox arrangement has a second gearbox input and a second gearbox output. The first drive device is connected to the first gearbox input and the second drive device is connected to the second gearbox input. The first and second gearbox outputs are connected to the drive output device. The first and second gearbox inputs can be connected to one another or separated from one another by means of a clutch.

Abstract: Shift arrangement for a motor vehicle gearbox. The shift arrangement has a shift element which can be connected or is connected to a shift member. The shift arrangement has a hydraulic actuator by means of which the shift element can be moved in a first shifting direction and in an opposing second shifting direction. The hydraulic actuator comprises a double-acting hydraulic cylinder which has a first cylinder port and a second cylinder port. The shift arrangement has a hydraulic circuit which has a pump and is connected to the first and second cylinder ports. The pump is connected to an electric motor as a pump drive and is embodied as a bidirectional rotational pump which has a first pump port which is directly connected to the first cylinder port, and which has a second pump port which is directly connected to the second cylinder port. The shift element can be moved by changing the rotational speed and/or the direction of rotation of the electric motor.

Abstract: A method for correcting an actuator characteristic of a clutch actuator for a friction clutch of a vehicle transmission after the commissioning of the vehicle. The actuator characteristic relates a first desired variable, such as a desired clutch pressure, to a second desired variable, such as an desired actuator current. The method includes approaching a quasi-steady-state operating point of the friction clutch. In addition, a deviation is detected between the first desired variable and an actual variable of the friction clutch. Also, a correction function is set up for the actuator characteristic according to the deviation.

Abstract: Parking lock arrangement, having a parking lock mechanism, which can be moved between a parking lock position and a release position, and having an operating device which is supported so that it can rotate about a first axis and which is designed, through rotation, to operate the parking lock mechanism. The parking lock arrangement further has an actuating mechanism and a coupling device which couples the operating device to the actuating mechanism. The actuating mechanism is supported so that it can rotate about a second axis relative to a drum, which is rotatable about the second axis via a drive.

Abstract: A drivetrain for a motor vehicle has a first electric machine provides drive power, wherein the first electric machine is connected to an electrical energy store. A differential can distribute drive power to two driven wheels or axles of the motor vehicle. A first transmission arrangement which connects the first electric machine to the differential. A second electric machine which is coupled to an internal combustion engine in order to charge the electrical energy store in a generator mode. A second transmission arrangement connects the internal combustion engine to the differential. The second transmission arrangement has a first gear stage and a second gear stage which can be alternately engaged, for the transmission of drive power from the internal combustion engine to the differential, by means of a clutch arrangement.

Abstract: Parking-lock arrangement for a motor-vehicle transmission. The parking-lock arrangement has a parking-lock wheel which is mounted such that it can be rotated about a first axis. The parking-lock arrangement has a parking-lock pawl which is mounted such that it can be moved between a locking position and a release position. The parking-lock arrangement has an actuating arrangement which actuates the parking-lock pawl and is mounted such that it can be rotated about a second axis over an angular range. The angular range has a first angular section, within which the parking-lock pawl can be actuated, and a second angular section, within which the parking-lock pawl is held in a position.