Active running gear system for motor vehicle has hydraulic piston-cylinder unit, delivery pump that draws hydraulic medium from pressure regulating valve output, at least at known operating points

摘要

The system has a vehicle wheel supported on the vehicle structure via a piston-cylinder unit acting as a damper and auxiliary force introduction actuator. Each working chamber on either side of a piston has an associated hydraulic supply line supplying the same pressure or a lower pressure to the larger diameter chamber from a delivery pump drawing hydraulic medium from the output of a pressure regulating valve, at least at known operating points. The system has one vehicle wheel supported on the vehicle structure (16) via a hydraulic piston-cylinder unit (1) acting as a damper and as an auxiliary force introduction actuator. Each working chamber (1d,1e) on either side of the piston (1b) has a different diameter and an associated hydraulic supply line supplying the same pressure or a lower pressure to the larger diameter chamber from a delivery pump (5) that draws the hydraulic medium from the output of a pressure regulating valve (6), at least at known operating points.