Transmission Device having a Hydraulic System

摘要

A hydraulic system (1) of a transmission device (2) is connected to a hydraulic pump (43) that can be driven by the transmission input shaft and to an additional hydraulic pump (44) that can be driven by the transmission output shaft, and forwards hydraulic fluid volumes conveyed by the hydraulic pumps (43, 44) to transmission components. Transmission components can be subjected to hydraulic fluid by means of a primary pressure circuit (46) and by means of a secondary pressure circuit (54). A pressure side (45) of the hydraulic pump (43) is coupled directly with the primary pressure circuit (46) and is connectable to the secondary pressure circuit (54) by means of the system pressure valve (47). A pressure side (64) of the additional hydraulic pump (44) is in direct connection with the secondary pressure circuit (54). The pressure side (45) of the hydraulic pump (44) in the area of the secondary pressure circuit (54) can be connected, by means of a valve device (48), to a transmission component designed as a gear set and to a transmission component designed as a dual-clutch system (56) and to a suction area (69) of the hydraulic pumps (43, 44). The pressure side (64) of the additional hydraulic pump (44) is in connection with the gear set and can be coupled with the dual-clutch system (56) by means of the valve device (48).

主权项

1. Transmission device (2) with a hydraulic system (1) that is connected to a hydraulic pump (43) that can be driven by the transmission input shaft and to an additional hydraulic pump (44) that can be driven by the transmission output shaft and, depending on the operating state, forwards hydraulic fluid volumes conveyed by the hydraulic pumps (43, 44) to transmission components, whereas one part of the transmission components can be subjected to hydraulic fluid by means of the primary pressure circuit (46) and an additional part of the transmission components can be subjected to hydraulic fluid by means of a secondary pressure circuit (54) of the hydraulic system that is connectable to the primary pressure circuit (46) by means of a system pressure valve (47), whereas a pressure side (45) of the hydraulic pump (43) is coupled directly with the primary pressure circuit (46) and is connectable to the secondary pressure circuit (54) by means of the system pressure valve (47), while a pressure side (64) of the additional hydraulic pump (44) is in direct connection with the secondary pressure circuit (54), characterized in that the pressure side (45) of the hydraulic pump (44) in the area of the secondary pressure circuit (54) can be connected, by means of a valve device (48), to a transmission component designed as a gear set, to a transmission component designed as a dual-clutch system (56) and to a suction area (69) of the hydraulic pumps (43, 44) and the pressure side (64) of the additional hydraulic pump (44) is in connection with the gear set and can be coupled with the dual-clutch system (56) by means of the valve device (48).