Gearbox control unit for a gearbox or gearboxes in an automotive vehicle, has hydraulic arrangement controlling the gear-change unit

摘要

The device has an electric motor (35) driving a hydraulic pump (36), this pump connected to the gear-change unit. The pump has two outlets (37,38), one of them feeding in the hydraulic energy for one direction of rotation of the pump and the other, feeding in the hydraulic energy for the opposite direction of rotation of the pump. The gear-change unit has a double-effect actuator (45) connected to two outlets of the pump.