Electrohydraulic device for height correction of the body of a motor vehicle with two axles

摘要

The device provides correction of the height of the vehicle body above the two axles (E1,E2) of the vehicle, using hydraulic cylinders associated with each of the axles. The cylinders are arranged to be connected either to a source (11) of pressurised liquid or to a reservoir (13). A single distributor (7) is associated with the two suspension devices (2) linked to the two axles. A further distribution device (5) connects the suspension cylinders (2) to one or other of the two axles. The distribution is controlled by electronically-controlled valves (EV1,EV2,EV3), with the connection such that the source and reservoir are connected in open circuit in the rest state of the system. A processor (16) controls the valves in response to signals from sensors on the axles.