Vibration damper with level control
AssigneeZF Friedrichshafen AG
InventorsBurkhard Bender, Holger Kirchner, Nobert Ackermann
Life of this patent
Estimating the term…
Abstract
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.
Claims14
A suspension system comprising:
- a vehicle support spring;
- a spring support configured as hydropneumatic spring having a hydraulic volume that can be adjusted relative to a pneumatic storage element and configured to support the vehicle support spring;
- and
- a spring collar supporting the vehicle support spring is selectively adjustable with respect to a position by a pressurized-medium supply to adjust a level of a vehicle body.
A method for the operation of a suspension system comprising including a vehicle support spring, a spring support configured as a hydropneumatic spring having a hydraulic volume that can be adjusted relative to a pneumatic storage element and configured to support the vehicle support spring and a spring collar supporting the vehicle support spring is selectively adjustable with respect to a position by a pressurized-medium supply to adjust a level of a vehicle body,
- adjusting the level of the vehicle body;
- and
- keeping the hydropneumatic spring constant with respect to a spring rate under constant load and changing driving situation.
Dependencies are inferred from the claim text.