Abstract: A torsional vibration damping arrangement for a drivetrain of a vehicle comprises a rotational mass arrangement which is rotatable around a rotational axis A and a damping arrangement fixed with respect to rotation relative to the rotational axis A. A displacer unit is operatively connected to the primary inertia element on the one side and to the secondary inertia element on the other side. The damping arrangement includes a slave cylinder with a working chamber having a volume V2, and the working chamber of the slave cylinder is operatively connected to the working chamber of the displacer unit. The damping arrangement includes a stiffness arrangement and a damper mass, and the slave cylinder of the damping arrangement is operatively connected to the damper mass by a stiffness arrangement.

Abstract: A method for operating a drive train includes determining target torques for prime movers (1, 2) at least depending on a driver-demanded output torque. When a form-locking shift element (9) is disengaged for a gearchange, the shift element (9) to be disengaged is relieved of load, via an actuation of the prime movers depending on the target torques. The shift element (9) to be disengaged is already actuated with a defined actuating pressure in the direction of disengagement before a theoretical relief from load depending on the target torques, and monitoring determines whether and at which actual torques the shift element (9) to be disengaged begins to move. The actual torques of the prime movers (1, 2), at which the shift element (9) to be disengaged begins to move, are determined as actual torques at which the shift element (9) to be disengaged is actually relieved of load.

Abstract: A torsional vibration damping arrangement for a drivetrain of a vehicle comprises a rotational mass arrangement which is rotatable around a rotational axis A and a damping arrangement fixed with respect to rotation relative to the rotational axis A. A displacer unit is operatively connected to the primary inertia element on the one side and to the secondary inertia element on the other side. The damping arrangement includes a slave cylinder with a working chamber having a volume V2, and the working chamber of the slave cylinder is operatively connected to the working chamber of the displacer unit. The damping arrangement includes a stiffness arrangement and a damper mass, and the slave cylinder of the damping arrangement is operatively connected to the damper mass by a stiffness arrangement.

Abstract: A torsional vibration damping arrangement for a drivetrain of a vehicle includes a rotational mass arrangement which is rotatable around a rotational axis. The rotational mass arrangement includes a primary inertia element which is rotatable around rotational axis A and a secondary inertia element which is rotatable relative to the primary inertia element against the action of an energy storage and further includes a displacer unit with a working chamber. The displacer unit is operatively connected to the primary inertia element or to the secondary inertia element on one side and to a damper mass on the other side.

Abstract: A transmission includes a first shaft connected to a differential transmission by a differential carrier. The differential transmission includes a first and a second differential shaft, wherein the second differential shaft is an output shaft. A shift element that includes a sliding element is used to couple the first differential shaft to the output shaft. The sliding element is connected in a torque-proof manner to the differential carrier and is axially movable relative to the differential carrier by a spring to produce a positive-locking connection between the first differential shaft and the output shaft. The first differential shaft has a movable area that moves axially with the shift element into a positive-locking connection with an area of the output shaft. The movable area of the first differential shaft is rotatable relative to the sliding element.

Abstract: A vehicle drive train and a transmission device (11) with a differential transmission device (13), which is in operative connection with a first shaft in the area of a differential cage (15), and with two differential shafts (12), of which one is able to be coupled with an output shaft (14) through a shifting element (16) that is able to be actuated through an actuator device (17) is described, In accordance with the invention, one shifting element half (18) of the shifting element (16) features a sliding element (19) that is connected in a torque-proof manner to the differential cage (15) and is movable from the actuator device (17) axially in respect of the differential cage (15), through which, through the actuation on the side of the actuator device, a positive-locking connection is able to be produced between the differential shaft (12) and the output shaft (14) in the area between an area (20) of the differential shaft (12) that is axially movable together with the sliding element (19), which is connect