Patent 9975598 was granted and assigned to ZF Friedrichshafen on May, 2018 by the United States Patent and Trademark Office.
A suspension system includes a spring support for a vehicle support spring. A spring collar supporting the vehicle support spring is selectively adjustable with respect to position by a pressurized-medium supply with the aim of adjusting the level of a vehicle body. The spring support is constructed as a hydropneumatic spring having a hydraulic volume, which can likewise be adjusted relative to a pneumatic storage element.