The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 12, 1991

Filed:

Dec. 05, 1988
Applicant:
Inventors:

Thomas Ruhl, Waiblingen-Hegnach, DE;

Armin Muller, Backnang, DE;

Wolfgang Hinrichs, Stuttgart, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
36442602 ; 180197 ; 303100 ;
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.


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