Method for the damping force adjustment of motor vehicles as a function of output signals of a transmitter arranged at the vehicle body

US4821189A · kind A · utility

Assignee

• Bayerische Motoren Werke A.G. · DE

Inventors

• Dieter Hennecke · Pfaffenhofen an der Ilm, DE
• Eugen Herb · Ditzingen, DE
• Udo Ochner · Munich, DE
• Bernd Jordan · Munich, DE

Key dates

• Filing date: Sep 25, 1987
• Grant date: Apr 11, 1989
• Expiry date: Sep 25, 2007

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G17/018
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a method for the damping force adjustment of motor vehicles in dependence of output signals of a transmitter arranged at the vehicle body which are processed and are compared with a predetermined threshold value and which produce a signal for changing the damping force when exceeding/dropping below this threshold value, the changes of these output signals are added at equal intervals with respect to time and determined over a measuring period which is considerably larger than the natural period (reciprocal resonance frequency) of the vehicle wheels and are compared with a threshold value which is dependent on the load of the vehicle. A drift-free indication about the damping force adjustment to be selected becomes possible therewith without frequency analysis.