Method and apparatus for determining slip thresholds for a propulsion slip control system of a motor vehicle

US4999778A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Thomas Ruhl · Bischofswerda, DE
• Armin Muller · Freiberg, DE
• Wolfgang Hinrichs · Echterdingen, DE

Key dates

• Filing date: Dec 5, 1988
• Grant date: Mar 12, 1991
• Expiry date: Dec 5, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2552/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Method of and apparatus for determining slip thresholds for a propulsion slip control system of a motor vehicle, whereby the instantaneously effective coefficient of friction between vehicle and road is determined from the measured values of vehicle speed and of the vehicle longitudinal acceleration and a slip value is associated therewith as a threshold value for the propulsion slip control system.