Vehicle active suspension system - has gas springs with pressure control chamber whose volume is changed by bellows operated by piston

摘要

The active suspension system has gas springs between the vehicle superstructure and the wheel-carrying elements. Each gas spring has a compressible gas chamber connected by a pipe to a control chamber whose volume is adjustable using a control piston. The piston bears on a bellows arrangement on the end of the chamber, the rolling surface of the piston having a concave shape in cross-section and being circularly symmetric. The piston is designed so that the force used to increase or decrease the pressure in the chamber through corresponding volume increase or reduction is always constant. The piston can be displaced mechanically and/or pneumatically and/or hydraulically and/or electrically, esp. electronically. ADVANTAGE - Compact and effective design which can be adapted in many ways.