Dual-clutch transmission

摘要

A clutch transmission, in particular a dual-clutch transmission for a vehicle, such as a motor vehicle, includes at least one automatic transmission with a hydraulically actuatable clutch and at least one hydraulically actuatable gear actuator, and a hydraulic circuit having a tank supplying an unpressurized hydraulic medium and a pressure source supplying a pressurized hydraulic medium. For operating the respective clutch, a first pressure control valve and at least one second pressure control valve are arranged upstream of the respective coupling. At least one of the pressure control valves is connected with an upstream switching device which connects the at least one pressure control valve and a hydraulically actuatable parking lock either with the pressure source or with the tank.

主权项

1. A clutch transmission with at least one automatic transmission, comprising:
a hydraulically actuatable clutch, at least one hydraulically actuatable gear actuator, a hydraulic circuit comprising a tank providing an unpressurized hydraulic medium and a pressure source providing a pressurized hydraulic medium, a first pressure control valve arranged upstream of the hydraulically actuatable clutch for operating the clutch and at least one second pressure control valve arranged upstream of the at least one hydraulically actuatable gear actuator, a hydraulically actuatable parking lock, wherein at least one of the first pressure control valve and the at least one second pressure control valve is connected with an upstream switching device that connects the first pressure control valve and the at least one second pressure control valve and the hydraulically actuatable parking lock either with the pressure source or with the tank.