| 摘要 |
The invention relates to a system (I, II) for controlling a hydraulic device of a vehicle, the hydraulic device comprising a hydraulic reservoir (100), a hydraulic pump (90), a pump drive unit (110) for driving the hydraulic pump (90), a pressure and a return line (C1, C2), and at least one consumer. The hydraulic pump (90) is arranged to pump hydraulic medium from the hydraulic reservoir (100) to the pressure line in order to pressurize the pressure line to provide pressurized pressure medium to said at least one consumer. Said consumer is connected to the pressure line (C1 ) in order to receive said pressurized hydraulic medium and to said return line (C2) in order to return said hydraulic medium to the hydraulic reservoir (100). The hydraulic pump is a fixed displacement pump. The pump drive unit is an electric motor (110) arranged to drive said hydraulic pump (90). Said electric motor (110) is arranged to control the motor speed of the hydraulic pump (90) in order to control pressure in the pressure line (C1 ). The invention also relates to a method for controlling a hydraulic device of a vehicle. The invention also relates to a motor vehicle. |
