| 摘要 |
A hydraulic system (1) for a transmission (2) having a plurality of pressure regulating valves (62 to 29) is described, in the region of which valves, an applied pressure (p_sys) can be adjusted to a pressure level to be set downstream as a function of a total force component engaging at each valve slider depending on the operating state. The total force component appears as a function of a pilot control force component applicable on each valve slider, an actuating force component, and a regulating force component dependent on the pressure level prevailing downstream. The pilot control force component and the actuating force component can each be applied on the valve slider in an equally acting way in the direction of a first end position of the valve slider of a pressure regulating valve (62 to 29), in which position the region upstream of the pressure regulating valve (62 to 29) is connected to the region downstream of the pressure regulating valve (62 to 29) via the pressure regulating valve, whereas the pressure downstream of the pressure regulating valve (62 to 29) can be applied on the valve slider, acting counter to the pilot control force component and the actuating force component, in the direction of a second end position of the valve slider, in which position the region downstream of the pressure regulating valve (62 to 29) is connected to a low pressure region (71). |
