Hydropneumatic suspension for vehicles with highly varying axle loads

The hydropneumatic suspension has hydraulic spring cylinders (1,2) coupled to a hydraulic medium supply pump via feed lines containing a pressure regulating valve (65) with a proportional regulation characteristic, having an electric setting motor (67) controlled by a pressure sensor (68) detecting the pressure in the lines (13) leading to the piston spaces (3,4) of the hydraulic spring cylinders.