Patent ID: 6669216
Filing Date: 2003-12-30
Classification: B60G

Abstract:
A hydropneumatic suspension system for a motor vehicle, comprising:at least one hydropneumatic support system, including: at least one hydropneumatic suspension cylinder having an upper suspension cylinder space and a lower suspension cylinder space unconnected to the upper suspension cylinder space; at least one hydropneumatic pressure reservoir; and at least one damping valve; and an automatic level control system cooperating with the at least one hydropneumatic suspension support system, the automatic level control system being configured to deliver hydraulic fluid from the at least one hydropneumatic pressure reservoir to the at least one hydropneumatic suspension cylinder and to return hydraulic fluid from the at least one hydropneumatic suspension cylinder to the at least one hydropneumatic pressure reservoir, the automatic level control system being connected to the upper suspension cylinder space and the lower suspension cylinder space, and configured to perform suspension and automatic level control operations in the upper suspension cylinder space, and a roll stabilization operation in the lower suspension cylinder space.