| 摘要 |
Hydraulic system for a vehicle, having a hydraulic, load-carrying assembly which has a movable structural element, and a hydraulic device ( 4 ) for actuating the structural element, said hydraulic system having a primary circuit having a servo device ( 1 ), a stationary hydraulic pump ( 2 ), a directional valve ( 3 ), and said hydraulic device, which are arranged in order to operate the assembly. According to the invention, the hydraulic system has a supplementary circuit, being connected to the primary circuit and including a variable hydraulic pump ( 6 ) which is arranged in order to supply an adjustable addition of hydraulic oil to the hydraulic device, and a proportional valve ( 7 ) being arranged between the variable hydraulic pump and the hydraulic device in order to regulate the flow of hydraulic oil to the hydraulic device as a function of a received flow signal. The variable hydraulic pump having a load detecting regulator ( 8 ) which is arranged for detecting the load on the hydraulic device when the variable hydraulic pump is in operation. Furthermore, the invention relates to a vehicle including such a hydraulic system, and to a supplementary unit for such a vehicle.
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