Daimler-Benz Ag

Mercedes-Benz Aktiengesellschaft

Paul Schutzner

Martin Fritz

A system has pneumatic or hydropneumatic spring elements which are constructed in the form of displacement units and which are configured with a first pneumatic chamber, the volume of which changes according to the respective spring stroke, and a second pneumatic chamber having a constant volume. The two chambers can be connected to and isolated from one another by a valve arrangement. An appropriate control of the valve arrangement makes it possible to ensure that, in the reversal phase between the compression stage and extension stage of each of the spring elements, marked changes of the supporting forces occur and counteract vibrations of the sprung mass.

Motor vehicle spring support system with computer-assisted control

An adjustment for vehicle shock absorbers provides for a variable difference between a damping coefficient for the tension stroke and the damping coefficient for the compression stroke. In response to constant short-stroke oscillations of the wheels caused by unevenness of the road, a particular shock absorber generates a force on the vehicle body, the amount of which depends on the difference. By an appropriate control of the forces from the shock absorbers, pitching and rolling movements of the body can be counteracted.

Growing community of inventors

Esslingen, Germany

Paul Schutzner