Abstract: A drive machine coupling device for a motor vehicle with a hybrid drive is provided. The device includes an input shaft designed to receive the drive power provided by a first drive machine, an output shaft designed to output the drive power, and a first coupling device arranged between the input shaft and the output shaft. By way of the first coupling device, a torque can selectively be transmitted from the input shaft to the output shaft. The coupling device can be directly coupled to the output shaft. An additional coupling device is arranged between the input shaft and the output shaft, and can be directly coupled to the output shaft, such that a torque can selectively be transmitted from the input shaft to the output shaft. The additional coupling device is arranged parallel to the first coupling device with respect to the torque transmission.

Abstract: A hybrid drive for a hybrid vehicle is provided. The hybrid drive includes an internal combustion engine having a crankshaft, and an electric motor. The electric motor is coupled to the crankshaft of the internal combustion engine by way of an automatically shifting transmission.

Abstract: A parking brake system for a motor vehicle transmission is provided. The parking, brake system includes a brake cylinder having a brake piston movable between braking and locking positions, a piston lock provided to lock the brake piston in the locking position, a piston valve configured to activate the brake cylinder using a fluid, and a locking valve configured to activate the piston lock using a fluid. The piston valve can be connected, in a fluid-conducting manner on the downstream side facing away from the brake cylinder, to a supply pressure system, and the locking valve, on the side facing away from and downstream of the piston lock, can be connected in a fluid-conducting manner to the supply pressure system, such that the locking valve is arranged downstream of and parallel to the piston valve relative to the supply pressure system.

Abstract: A hydraulic controller for a vehicle gearbox is provided. The controller includes a hydraulic actuator which has an oil supply port, a high-pressure hydraulic pump for providing a feed to a high-pressure line, a low-pressure hydraulic pump for providing a feed to a low-pressure line, a hydraulic reservoir for receiving the hydraulic medium from a return line, and a hydraulic control valve. The control valve includes at least three control positions and at least four valve ports. In a first control position, the high-pressure line is fluidly connected to the oil supply port for the regulation of the actuating force of the hydraulic actuator. In a second control position, the low-pressure line is fluidly connected to the oil supply port for the pre-charging of the hydraulic actuator. In a third control position, the hydraulic actuator is fluidly connected to the return line for the return of the hydraulic medium.

Abstract: A hybrid drive for a hybrid vehicle is provided. The hybrid drive includes an internal combustion engine having a crankshaft, and an electric motor. The electric motor is coupled to the crankshaft of the internal combustion engine by way of an automatically shifting transmission.

Abstract: A drive machine coupling device for a motor vehicle with a hybrid drive is provided. The device includes an input shaft designed to receive the drive power provided by a first drive machine, an output shaft designed to output the drive power, and a first coupling device arranged between the input shaft and the output shaft. By way of the first coupling device, a torque can selectively be transmitted from the input shaft to the output shaft. The coupling device can be directly coupled to the output shaft. An additional coupling device is arranged between the input shaft and the output shaft, and can be directly coupled to the output shaft, such that a torque can selectively be transmitted from the input shaft to the output shaft. The additional coupling device is arranged parallel to the first coupling device with respect to the torque transmission.

Abstract: A parking brake system for a motor vehicle transmission is provided. The parking, brake system includes a brake cylinder having a brake piston movable between braking and locking positions, a piston lock provided to lock the brake piston in the locking position, a piston valve configured to activate the brake cylinder using a fluid, and a locking valve configured to activate the piston lock using a fluid. The piston valve can be connected, in a fluid-conducting manner on the downstream side facing away from the brake cylinder, to a supply pressure system, and the locking valve, on the side facing away from and downstream of the piston lock, can be connected in a fluid-conducting manner to the supply pressure system, such that the locking valve is arranged downstream of and parallel to the piston valve relative to the supply pressure system.

Abstract: A hydraulic controller for a vehicle gearbox is provided. The controller includes a hydraulic actuator which has an oil supply port, a high-pressure hydraulic pump for providing a feed to a high-pressure line, a low-pressure hydraulic pump for providing a feed to a low-pressure line, a hydraulic reservoir for receiving the hydraulic medium from a return line, and a hydraulic control valve. The control valve includes at least three control positions and at least four valve ports. In a first control position, the high-pressure line is fluidly connected to the oil supply port for the regulation of the actuating force of the hydraulic actuator. In a second control position, the low-pressure line is fluidly connected to the oil supply port for the pre-charging of the hydraulic actuator. In a third control position, the hydraulic actuator is fluidly connected to the return line for the return of the hydraulic medium.

Abstract: A driving coupling for the torque transmission in the transmission line of a motor vehicle includes a shaft-hub coupling provided with longitudinal toothings for the releasable coupling of a crankshaft with a coaxially arranged hydrodynamic torque converter. The longitudinal toothings of the shaft-hub coupling have tooth cross-sections which become larger and smaller respectively in the longitudinal direction of the teeth. An elastomer layer is situated at least between the tooth flanks of the shaft and the hub which transmit the torque.