Patent ID: 7909341

Claim:
A suspension system for a vehicle, comprising: two hydraulic piston-cylinder units, arranged to act as suspension damper/activator modules, each comprising a first cylinder chamber and a second cylinder chamber, the respective cylinder chambers of each of said two hydraulic piston-cylinder units being connected with an electro-hydraulic roll control which is arranged to control the vehicle's roll behavior under electric control of a computer system of the vehicle, said electro-hydraulic roll control comprising a direction valve, a pump unit and a pressure control, wherein the direction valve is a hydraulically actuatable direction valve which comprises two first switching ports and two second switching ports which are mutually interconnectable in three positions, as well as two hydraulic control ports which are connected, either indirectly or directly, with said pump unit, and moreover, said pressure control comprises an electrically actuatable, uni-directional pressure control module which is under electric control of the computer system, and both second switching ports of the hydraulically actuatable direction valve are connected with said uni-directional pressure control valve.