A vehicle suspension has one or more hydraulic cylinders (22) connecting an axle to a frame of the vehicle (10) and each cylinder has a first and second chambers (24,26). The suspension operates in either a regeneration mode, in which a fluid path is provi...

A hydraulic circuit controls a doubling acting cylinder of a vehicle suspension to provide load leveling and shock absorption functions. A set of solenoid valves control the application of pressurized hydraulic fluid from a supply line to the cylinder and ...