A hybrid module configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine includes an electric motor including a rotor and a stator for driving the rotor, a torque converter downstream of the electric motor, and a rotor input clutch including a piston and at least one clutch plate. The piston is configured for being pressed in a first axial direction into the at least one clutch plate via a pressure increase of fluid in an apply chamber. The hybrid module also includes a compensation chamber assembly. The compensation chamber assembly and the piston define a compensation chamber radially offset from the apply chamber. The compensation chamber assembly is configured for applying a force on the piston in a second axial direction opposite the first axial direction via a pressure increase of fluid in the compensation chamber.

A method for operating an idling automatic transmission of a motor vehicle having a torque converter, wherein the torque converter comprises at least one pump wheel and a turbine wheel which are designed to transmit a torque hydrodynamically from one to the other. The method comprises at least the following steps: determinating (12) a rotation speed of the turbine wheel; determinating (14) a load on the motor of the motor vehicle; and recognizing (16) whether there is a blockage in the drive-train of the motor vehicle or whether the torque converter is running dry, as a function of the turbine rotation speed and the motor load detected. The invention also relates to a monitoring device (10).

A torque transmission apparatus for transmitting a torque between a first drive element and an output element, including a torque converter, having a torque converter input, which is rotatable about a rotation axis (A) and is coupled to the first drive element, and a torque converter output, which can be connected to the output element. A separating clutch arranged outside of the torque converter and effectively between the first drive element and the torque converter, having a clutch input and a clutch output, which can be connected thereto by the action of a clutch actuating apparatus. The clutch actuating apparatus having a pressure means chamber and a pressure means channel (K4) supplying said pressure means chamber with pressure means, and the separating clutch being dry-operated and the pressure means channel (K4) extending through the torque converter at least in portions.

A hybrid powertrain includes a torque converter including an impeller, a turbine, and a stator, wherein the impeller is configured to receive torque from the engine input shaft without utilizing a torque converter cover or shell. The hybrid powertrain includes an electric machine including a rotor and motor stator, wherein the electrical machine is configured to transfer torque to a transmission input via the rotor.

A hybrid drive system for a motor vehicle includes an input shaft, which introduces torques from an internal combustion engine into the hybrid drive system and which is mounted rotatably around an axis of rotation. An output shaft is arranged coaxially to the input shaft. The system also includes an electric machine having a stator and a rotor, and a hub non-rotatably connected to the rotor. The system further includes a wet clutch which has a first actuating piston. The hub is formed as a one-piece forged part and has a first running surface for the first actuating piston. The wet clutch is provided to non-rotatably connect the hub to the output shaft.

A vehicle includes an engine, an electric machine, a torque converter, a weldment, an engine disconnect clutch, and a torque converter lockup clutch. The engine has a crankshaft. The electric machine has a rotor. The torque converter has an impeller and a turbine. The weldment is configured to rotate about an axis and to transfer power from the crankshaft and the rotor to the impeller. The weldment has a first hub, a second hub, a torque converter cover, an impeller housing, and a third hub. The engine disconnect clutch is configured to rotatably connect and disconnect the crankshaft to and from the weldment. The torque converter lockup clutch is configured to rotatably connect and disconnect the turbine to and from the weldment.

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.

A hybrid module configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine includes an electric motor including a rotor and a stator for driving the rotor, a torque converter downstream of the electric motor, and a rotor input clutch selectively engageable and disengageable to drivingly connect the rotor to or disconnect the rotor from an output of an engine crankshaft. The rotor input clutch includes a piston and at least one clutch plate. The piston is configured for being pressed in a first axial direction into the at least one clutch plate to engage the rotor input clutch via a pressure increase of fluid in an apply chamber. The hybrid module also includes a compensation chamber assembly. The compensation chamber assembly and the piston define a compensation chamber radially offset from the apply chamber. The compensation chamber assembly is configured for applying a force on the piston in a second axial direction opposite the first axial direction via a pressure increase of fluid in the compensation chamber.

A hydrodynamic torque converter (1) with a pump wheel (3) and with a turbine wheel (4), and with a torsion damper (8) and with an intermediate space (12) located between the turbine wheel (4) and the torsion damper (8), and with a torus formed by the pump wheel (3) and the turbine wheel (4) for hydraulic fluid. A flow-guiding wall (14) is provided, which deflects a radially outward flow of hydraulic fluid coming from the torus, back radially inward to the intermediate space (12).

The disclosure relates to a torque transmission device between a first drive element and an output element, having a torque transmission unit; an input, which is rotatable about a rotation axis and can be coupled to the first drive element, and an output, which can be connected to the output element. A separating clutch is arranged outside of the torque transmission unit and the fluid chamber, and is designed for selective torque transmission between the first drive element and the torque transmission unit. The separating clutch has a clutch input and a clutch output that is selectively connectable via a clutch actuating device.