Abstract: A motor vehicle hydraulic pump (1) is provided comprising a gerotor rotor set or planetary rotor set and at least two output stages. A first output stage (10) of the hydraulic plump (1) is connected to a lubricant, in particular, a clutch lubricant. A second output stage (11) of the hydraulic pump (1) is connected to at least one clutch (2) of the actuation thereof. The invention also provides a method for actuating at least one clutch which is arranged in the motor vehicle by means of a motor vehicle hydraulic pump, whereby an inter-connection of a volume flow outlet of the first step (10) and the second step (11) of the hydraulic pump (1) takes place according to requirements for actuating the clutch.

Abstract: A drive module (5, 6) for a variable torque distribution in the driveline of a motor vehicle. The drive module (5, 6) has a first shaft (19) rotatably supported relative to a stationary housing (18); a second shaft (22) which is drivingly connected to the first shaft (19); and a transmission stage (25) arranged in the torque flow between the first and second shafts (19, 22). The transmission stage (25) has at least one planetary gear (27) and a rotating carrier element (32). A coupling (37) serves to couple the carrier element (32) relative to the housing (18). When coupled, torque transmission occurs from one of the first or second shaft (19, 22), to the other one of the two shafts. The housing (18), the first shaft (19), the second shaft (22), the transmission stage (25) and the coupling (37) form part of a unit adapted to attach to a drive (3).

Abstract: A drive assembly (1) includes a differential (3) with a differential carrier (7) and two output shafts (19) connected to the differential carrier (7) via a differential gear set (10). The assembly includes at least one transmission stage (25) with a first sun gear (26) connected to the differential carrier (7), and a second sun gear (28) connected to one of the two output shafts (19), and at least one parallel planetary gear (27) which engages the sun gears (26, 28) and which is rotatably held in a carrier element (32) which can be coupled to a stationary housing (18). The two sun gears have profile-displaced teeth with different numbers of teeth and are arranged at the same axial distance (C) from the at least one planetary gear (27). The planetary gear (27) has two toothed portions (29, 30) with corresponding teeth.

Abstract: A differential assembly with a first differential drive (15) having a differential cage (14) rotatingly drivable around an axis of rotation (A), a plurality of differential spur gears (17) rotating with the differential cage (14), and crown gears (18, 19) coaxial with the axis of rotation (A) and engaging the spur gears (17). A second differential drive (16) is arranged inside the first differential drive (15), and has a differential carrier (20), a plurality of differential gears (26) rotating jointly with the differential carrier (20), and sideshaft gears (27, 28) coaxial with the axis of rotation (A) and engaging the differential gears (26). The first crown gear (18) is connected in respect of drive to the differential carrier (20) of the second differential drive (16) and the second crown gear (19) is connected in respect of drive to a hollow shaft (22) extending coaxially relative to the axis of rotation (A).

Abstract: An axial setting device for actuating a multi-plate coupling (2) in the driveline of a motor vehicle, comprising a housing (3), a cylinder unit (15) and a hydraulic system. In the housing (3), two parts (4, 5) are supported so as to be coaxially rotatable relative to one another and can be coupled to one another by a set of coupling plates (10) which are axially arranged between a supporting disc (9) and a pressure disc (11). The cylinder unit (15) comprises a hydraulic chamber (22) and a piston (21) axially displaceably arranged therein for actuating the multi-plate coupling (10) via the pressure disc (11). The hydraulic system for actuating the piston (21) comprises a quantity of oil jointly contained in the housing (3) and in the hydraulic chamber (22), as well as a pump (18) which has a first connection (23) connected to the housing (3) and a second connection (24) connected to the hydraulic chamber (22).

Abstract: An assembly for measuring force at a friction coupling, more particularly in the driveline of a motor vehicle. The assembly includes an outer plate carrier (6) at which outer plates (7) are held so as to be rotationally secured and in a way so as to be axially displaceable, wherein at least one of the outer plates (7) comprises an outer cam (12); an inner plate carrier (8) at which inner plates (9) are held in a rotationally fast way and in a way so as to be axially displaceable; wherein the outer plates (7) and the inner plates (9) are arranged so as to alternate in the axial direction, while jointly forming a plate package (10); a force measuring device arranged in such a way that, upon actuation of the friction coupling (3), it is loaded by the cam (12) in an operating direction extending at a distance from, and transversely to, the longitudinal axis (A).

Abstract: A friction coupling assembly includes: a ball ramp assembly (2) with two coaxial discs (6, 7), wherein the faces (8, 9) of the two discs (6, 7) each have ball grooves (12, 13) of increasing depth, wherein pairs of opposed ball grooves hold balls to axially support the two discs (6, 7); a plate package (3) arranged coaxially relative to the discs (6, 7) and having outer plates (24) for fixing to a coupling carrier (40) and inner plates (25) for fixing to a coupling hub (56); and a plate spring (5) for introducing force into the plate package (3), the plate spring (5) is arranged coaxially relative to the discs (6, 7), is axially pretensioned and, functionally, is arranged in series with the plate package (3).

Abstract: An axial setting device includes two discs which are centered on a common axis. One is axially supported and the other one is axially displaceable, and at least one is rotatingly drivable. The two discs on their end faces, each have a plurality of circumferential ball grooves. The ball grooves each comprise a depth which decreases in the same direction, and each pair of opposed ball grooves accommodates a ball. At least the ball grooves of one of the two discs, starting from the region of the greatest groove depth, comprise a first groove portion with a greater pitch and an adjoining second groove portion with a smaller pitch, wherein the first groove portion extends over a smaller circular-arch-shaped portion than the second groove portion.

Abstract: A transfer box with a housing, an input shaft, a first output shaft extending coaxially relative to said input shaft, and a second output shaft extending parallel to said two shafts, as well as with a differential gear assembly arranged between said shafts, wherein the input shaft carries a cross member with a plurality of radial bearing arms for the differential gears, wherein a first side gear is connected in a rotationally fast way to the first output shaft and wherein a second side gear is rotatably supported on the input shaft and drives the second output shaft, wherein the differential gears are spur gears and the side gears crown gears and wherein the teeth of the differential gears engage the teeth of the side gears.

Abstract: A method of determining the coupling moment in a friction coupling with an electro-mechanical actuator which comprises a supporting element axially supported in a housing and a displaceable setting element axially supported on said supporting element, wherein the supporting element is axially supported in the housing via an undisplaceably enclosed hydraulic medium and that the pressure in the hydraulic medium is measured and used by lookup tables of values for the actuator and for the friction coupling for the purpose of calculating the coupling moment in a central ECU.

Abstract: A differential drive having an input element (E) and three output elements (A1, A2, A3), which, relative to one another, have a differential effect, and wherein there exists a fixed ratio between the transmittable input torque and each of the output torques directly transmittable to the output elements and wherein one of the output elements (A3), via at least one coupling (K1, K2), can be connected to each of the two other output elements (A1, A2).

Abstract: A friction coupling for coupling and uncoupling two parts which are rotatable relative to one another, having a coupling carrier (11) which carries outer plates (31) of a plate package (29) and a coupling hub (12) which carries inner plates (32) of the plate package (29), as well as an axially displaceable piston (25) which is able to load, or remove the load from, the plate package (29) which is axially supported on the coupling carrier (11) or on the coupling hub (12). The piston (25), on one side, delimits an annular-cylindrical chamber (26) which rotates with the coupling carrier (11), and in which there rotates a rotor disc 27 which is connected to the coupling hub (12) and which comprises at least one displacer blade (29). The annular-cylindrical chamber (26) is filled with a magneto-rheological fluid and sealed towards the outside.

Abstract: A drive module (5, 6) for a variable torque distribution in the driveline of a motor vehicle. The drive module (5, 6) has a first shaft (19) rotatably supported relative to a stationary housing (18); a second shaft (22) which is drivingly connected to the first shaft (19); and a transmission stage (25) arranged in the torque flow between the first and second shafts (19, 22). The transmission stage (25) has at least one planetary gear (27) and a rotating carrier element (32). A coupling (37) serves to couple the carrier element (32) relative to the housing (18). When coupled, torque transmission occurs from one of the first or second shaft (19, 22), to the other one of the two shafts. The housing (18), the first shaft (19), the second shaft (22), the transmission stage (25) and the coupling (37) form part of a unit adapted to attach to a drive (3).

Abstract: A drive assembly (1) includes a differential (3) with a differential carrier (7) and two output shafts (19) connected to the differential carrier (7) via a differential gear set (10). The assembly includes at least one transmission stage (25) with a first sun gear (26) connected to the differential carrier (7), and a second sun gear (28) connected to one of the two output shafts (19), and at least one parallel planetary gear (27) which engages the sun gears (26, 28) and which is rotatably held in a carrier element (32) which can be coupled to a stationary housing (18). The two sun gears have profile-displaced teeth with different numbers of teeth and are arranged at the same axial distance (C) from the at least one planetary gear (27). The planetary gear (27) has two toothed portions (29, 30) with corresponding teeth.

Abstract: A differential drive having an input element (E) and three output elements (A1, A2, A3), which, relative to one another, have a differential effect, and wherein there exists a fixed ratio between the transmittable input torque and each of the output torques directly transmittable to the output elements and wherein one of the output elements (A3), via at least one coupling (K1, K2), can be connected to each of the two other output elements (A1, A2).

Abstract: An all wheel drive system for use in a vehicle where that system includes a front axle having a front differential. The all wheel drive system also includes a center differential connected to the front differential via a prop shaft. The all wheel drive system also includes a rear axle having a rear differential wherein the rear differential is connected to the center differential. The rear differential having a reduction gear integrated therein.

Abstract: A differential drive for use on a vehicle to control the transfer of torque between the front and rear axles of a vehicle. The differential drive includes a rotatably driven differential housing supported in a housing. The differential drive also includes a differential gear set arranged and supporting in the differential housing. The differential gear set has at least two side shafts gears and at least two differential gears. The differential drive also includes a torque distribution device having a viscous transmission. The viscous transmission has an inner hub and an outer casing. The inner hub is connected to a first side shaft. The outer casing is connected to one of the side gears. The viscous transmission also connects the output of the first side shaft to one of the side shaft gears.

Abstract: An engagement mechanism for use in a vehicle includes a housing. The engagement mechanism also includes a first ball ramp disc engaging the housing on one side. The first ball ramp disc includes a first ramp on the side engaging the housing. The first ball ramp disc also includes a second ramp having a predetermined angle on the side opposite of the side engaging the housing. The engagement mechanism further includes a ball ramp disc adjacent to the first ball ramp disc on a side opposite of the side engaging the housing which is rotatably driven. The engagement mechanism also includes a spring element arranged between the first ball ramp disc and the second ball ramp disc. The engagement mechanism is used to engage a friction clutch pack of a vehicle drivetrain system.

Abstract: An axle module for use in an automotive vehicle. The axle module includes a housing and a shaft rotatably supported within that housing. The axle module also includes a ring gear connected to the shaft. The axle module also includes a clutch pack housing engaged with an end of shaft while a side shaft joint is arranged within the clutch pack housing. The side shaft joint is connected to a side shaft which is further connected to a wheel of the automotive vehicle. A plurality of plates extend from the clutch pack housing and from the side shaft joint such that they overlap in an alternating manner with one another. The axle module also includes a motor which is used to control the transfer of an axial torque through the clutch pack housing and plurality of plates.

Abstract: An axle module for use in an automotive vehicle. The axle module includes a housing and a shaft rotatably supported within that housing. The axle module also includes a ring gear connected to the shaft. The axle module also includes a clutch pack housing engaged with an end of shaft while a side shaft joint is arranged within the clutch pack housing. The side shaft joint is connected to a side shaft which is further connected to a wheel of the automotive vehicle. A plurality of plates extend from the clutch pack housing and from the side shaft joint such that they overlap in an alternating manner with one another. The axle module also includes a motor which is used to control the transfer of an axial torque through the clutch pack housing and plurality of plates.