A clutch mechanism is configured to be driven in rotation about an axis and includes two assemblies. Each assembly includes: an outer disk carrier externally delimiting a cavity; a clutch including a stack of coupling disks and friction disks, the stack being housed in the cavity and configured to be driven in rotation about the axis; and a reaction member of the outer disk carrier configured to enable compression of the coupling disks against the friction disks in a clutch engaged position of the corresponding clutch. The clutch mechanism includes at least one device for assembling the two assemblies to one another.

This clutch control apparatus includes: a clutch device that connects and disconnects a power transmission between an engine and a drive wheel; a clutch actuator that drives the clutch device and changes a clutch capacity; a driven mechanism that is arranged between the clutch actuator and the clutch device, is operated by a drive of the clutch actuator, and operates the clutch device; a control part that calculates a control target value of the clutch capacity; and a temperature sensor that measures a temperature of the driven mechanism, wherein the control part corrects the control target value based on the temperature measured by the temperature sensor.

A drive force transfer device includes a multi-plate clutch that transfers a drive force using a friction force generated between a plurality of clutch plates; a housing that houses the multi-plate clutch; a piston that presses the multi-plate clutch using a hydraulic pressure of operating oil supplied to a hydraulic chamber provided in the housing; a hydraulic unit configured to supply the operating oil to the hydraulic chamber; and a control device configured to control the hydraulic unit, the control device being configured to correct a control amount for the hydraulic unit based on a result of a temperature estimation based on operation of the hydraulic unit.

A coupling arrangement is provided and includes a first component, a second component, a press-on element, and an actuating unit, such that the second component can be displaced from a first position to a second position. The actuating unit includes an actuator and a lever rotatably mounted in the second component about an axis of rotation perpendicular to a longitudinal axis and having a contact surface to contact a fixed mating surface. The contact surface and/or the mating surface has a convex curvature, and the actuator and the lever cooperate such that the movement of the actuator along the longitudinal axis is converted into movement of the lever on the mating surface, and such that the second component is displaced along the longitudinal axis in the second position.

The present invention relates to a triple clutch device (2) for arrangement in a drivetrain of a motor vehicle having a double clutch device comprising a first disk clutch (40) for selective torque transmission between a first input-side disk carrier (52) and a first output-side disk carrier (54) and a second disk clutch (42) for selective torque transmission between a second input-side disk carrier (56), which is connected rotationally fixed to the first input-side disk carrier (52), and a second output-side disk carrier (58), and having a separating clutch device comprising a third disk clutch (44) for selective torque transmission between a third input-side disk carrier (60) and a third output-side disk carrier (62), wherein the first input-side disk carrier (52) is connected rotationally fixed to the third output-side disk carrier (62), and a first disk set (46) of the first disk clutch (40) and a third disk set (50) of the third disk clutch (44) are arranged nested in the radial directions (8, 10). The third disk set (50) is arranged within the first disk set (46) in the radial direction (10). The present invention additionally relates to a drivetrain of a motor vehicle comprising such a triple clutch device (2).

A clutch mechanism that is configured to be driven in rotation about an axis and includes two assemblies, each assembly including at least an outer disc carrier externally delimiting a cavity, a clutch comprising a stack of coupling discs, and friction discs, the stack being housed in the cavity and configured to be driven in rotation about the axis, a reaction member configured to allow compression of the coupling discs against the friction discs in an engaged position of the clutch, the clutch mechanism comprising at least one device for assembling the two assemblies, the clutch mechanism including at least one device for adjusting an axial distance between the two clutches.

A torque transmission arrangement includes a cylindrical friction element carrier and a snap-ring, the friction element carrier carries a pressing plate and a reaction plate of an outer friction-based torque-transmission mechanism rotationally secured to an outer surface and a pressing plate and a reaction plate of an inner friction-based torque-transmission mechanism rotationally secured to an inner surface. The friction element carrier includes through-holes distributed around the circumference of the friction element carrier. The snap-ring includes radial projections distributed around the inner or outer circumference of the snap-ring and configured to extend through said through-holes when the snap-ring is mounted on the friction element carrier, such that the snap-ring protrudes in a radial direction beyond both the inner and outer surfaces of the friction element carrier for retaining the inner and outer reaction plates of the inner and outer friction-based torque-transmission mechanisms on the friction element carrier.

An improved twin clutch, two-speed disconnect secondary drive unit, which may be configured as a rear drive unit (RDU) for an all wheel drive vehicle is provided. The RDU is driven through an input shaft, which is connected to a vehicle drive source such as a motor, and includes a twin clutch assembly, which is connected to the drive shaft and is selectively actuated to drive left and right main shafts, which drive respective wheels of the vehicle. The RDU further includes a modular a shift assembly mountable to one or both of said main shafts to drive output shafts, wherein each shift assembly is selectively operable between the hi-range and lo-range modes to shift driving operation of the output shafts between hi-speed and lo-speed operation. The shift assembly may be controlled by improved mono-stable or bi-stable actuators.

A secondary drive unit (SDU) for the secondary axis of an all wheel drive vehicle consists of an SDU housing defining a first section for receiving a main shaft which is connected to a drive source and a second section for enclosing a twin clutch assembly. The twin clutch assembly has a common clutch housing connected to the main shaft, a left clutch for selectively connecting a left output shaft and the clutch housing, a right clutch for selectively connecting a right output shaft and the clutch housing, and a rigid center plate separating the left and right clutches. The twin clutch assembly may be activated by a dual action piston assembly to decrease all wheel drive synchronization and connection response times.

A launch device for rotationally coupling a prime mover to a transmission. The launch device includes a front and rear cover cooperating to define a chamber into which a plurality of blades extend forming an impeller. Located in the chamber and fluidically coupled to and rotationally driven by the impeller is a turbine. One or more roller bearings support the turbine and the rear cover for rotation about a central axis. The bearings include inner and outer members supporting the roller elements. A retention feature is further provided to aid in installation and retention of a support component with the bearing. The retention feature allows relative movement in an axial direction of assembly until the bearing and support components are fully engaged, but inhibits relative movement of the bearing and support components in an opposing axial direction.