Twin-clutch transmission, having at least one pump, one of the pump is connected downstream of the volume of expensive valve, one of the pump downstream cooler and a cooler downstream switching valve

摘要

Dual-clutch transmission (2) for a motor vehicle, with at least one pump (7,9) in order to convey a hydraulic medium stream from a the hydraulic medium which provides the tank (3), with one of the pump (7,9) downstream cooler (183) for cooling of the conveyed hydraulic medium current and with any one of the pump (7,9) downstream volume expensive valve (185) for adjusting the hydraulic medium current for at least one of the clutches (k1, k2) of the twin-clutch transmission (2) associated cooling (221,223), characterized in that the volume expensive valve (185) the hydraulic medium current in a first area state of a first cooling (221) of a first clutch (k1) and in a second area state of a second cooling (223) of a second clutch (k2), and that a switching valve (229) in at least a first switching state of the hydraulic medium current the volume expensive valve (185) and in at least one second switching state of the tank (3), the cooler (183) is connected downstream.