Electric control device for vehicle suspension system

摘要

An electric vehicle-level control device is provided for controlling an electrically operated fluid pressure control device for a pneumatic, hydraulic or hydro-pneumatic suspension unit such as a hydro-pneumatic suspension strut of a self-levelling suspension system for an automotive vehicle. The control device comprises a timing or delay circuit adapted to deliver an output signal at a predetermined retarded timing following generation of (1) a signal responsive to a vehicle level higher or lower than a predetermined value, or (2) a signal responsive to shutdown of a power plant such as an internal combustion engine of an automotive vehicle.