Semi-active suspension control

US5189615A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Erich Rubel · Ludwigsburg, DE
• Karl Haegele · Schorndorf, DE
• Michael Panther · Rutesheim, DE
• Klaus Gatter · Winnenden, DE

Key dates

• Filing date: Feb 14, 1991
• Grant date: Feb 23, 1993
• Expiry date: Feb 14, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2600/604
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention concerns a method and a device for the suspension control of vehicles, in particular motorcars and commercial vehicles, with the following steps: Sensory ascertainment of the dynamic rolling condition and processing of the established rolling condition data, to generate a control signal for a semi-active damper, preferably one allocated to each wheel of the vehicle, the damping force of which is adjustable in certain situations which are dependent on the driving condition, to as small a value as possible. It is suggested that the semi-active damper, depending on the control signal and the actual value of the damper force is set in substitution for an active damper function which though desired with regard to the prevailing operating point, is not however achievable, this substitute setting being made with maximum hardness or maximum softness.