A constructional unit for a hybrid powertrain of a motor vehicle includes: an electric machine with a stator and a rotor, wherein the rotor is configured to transmit a torque to the powertrain; a clutch arrangement with at least one clutch actuation unit, wherein the clutch arrangement is configured to decouple an internal combustion engine from the powertrain, the internal combustion engine being provided parallel to the electric machine for transmitting a torque; and a vibration absorber apparatus configured to reduce vibrations in the powertrain. The clutch actuation unit is arranged axially substantially radially within the vibration absorber apparatus.

A constructional unit for a hybrid powertrain of a motor vehicle includes: an electric machine with a stator and a rotor, wherein the rotor is configured to transmit a torque to the powertrain; a clutch arrangement with at least one clutch actuation unit, wherein the clutch arrangement is configured to decouple an internal combustion engine from the powertrain, the internal combustion engine being provided parallel to the electric machine for transmitting a torque; and a vibration absorber apparatus configured to reduce vibrations in the powertrain. The clutch actuation unit is arranged axially substantially radially within the vibration absorber apparatus.

A pendulum damping device incorporated into a drive train of a motor vehicle, notably into a clutch, includes a support capable of rotational movement about an axis of rotation, a pendulum assembly of which the movement with respect to the support is guided by at least one rolling member, and an end-stop damping system borne directly by the pendulum assembly and able at least to damp the coming of said pendulum assembly into a position of abutment against the support of said pendulum assembly during the radial fall and/or saturation of this said pendulum assembly. The pendulum assembly also includes at least one radial protuberance designed to pass at least partially through an opening made in the end-stop damping system.

A method for operating a multi-cylinder internal combustion engine in which every active cylinder operates in a four-stroke mode and every deactivated cylinder filled with an approximately completed gas filling is compressed and expanded during the four-stroke operation of the activated cylinder. In a method in which excitations of a crankshaft speed are minimized, a limited number of even-numbered cylinders of a multi-cylinder internal combustion engine (2) having a maximum even number of cylinders (20, 21, 22, 23, 24, 25) are deactivated sequentially, the limited even number of cylinders being smaller than the maximum even number of cylinders (20, 21, 22, 23, 24, 25) of the multi-cylinder internal combustion engine (2).

An actuator arrangement for applying a torque to a shaft of a machine, in particular a reciprocating piston engine, includes: a) at least one actuator device for applying the torque; and b) at least one rotatable seismic mass coupled to the shaft. The at least one actuator device is designed to apply the torque to the shaft between the seismic mass and the shaft. A corresponding method is provided for active damping of torsional vibrations of the shaft having the actuator arrangement.

A lock-up device includes an input-side rotary member, an output-side rotary member, an outer peripheral side torsion spring, a restriction member and a float member. The restriction member is attached to the output-side rotary member. The restriction member includes a first restriction part. The first restriction part is disposed at an interval from the output-side rotary member in an axial direction. The float member is rotatable relatively to the input-side rotary member and the output-side rotary member. An inner peripheral end of the float member is disposed between the output-side rotary member and the first restriction part in the axial direction.

A lock-up device includes an input-side rotary member, an output-side rotary member, an outer peripheral side torsion spring, a restriction member and a float member. The restriction member is attached to the output-side rotary member. The restriction member includes a first restriction part. The first restriction part is disposed at an interval from the output-side rotary member in an axial direction. The float member is rotatable relatively to the input-side rotary member and the output-side rotary member. An inner peripheral end of the float member is disposed between the output-side rotary member and the first restriction part in the axial direction.

A vehicle transmission system component including a first subassembly having an input and an output, between which a torque can be transmitted. A second subassembly forms a pendulum-type damping device, and disposed outside the path of the torque transmitted by the first subassembly. The first and the second subassemblies are connected to one another by at least one connecting element capable of being elastically deformed circumferentially.

A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.

A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.