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.
Patent No.:
Date of Patent:
Feb. 28, 1995
Filed:
Apr. 27, 1993
Applicant:
Inventor:
Barry J Bridgens, West Midlands, GB;
Assignee:
Lucas Industries public limited company, Solihull, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; B60T / ;
U.S. Cl.
CPC ...
36442601 ; 36442603 ; 180197 ; 3031132 ; 73-9 ;
Abstract
Measurements of wheel speed are compared to detect excessive wheel spin. An output of the wheel spin detector is supplied to a drive reducing device for reducing vehicle drive engine output in response to detection of excessive wheel spin. The reduced vehicle drive engine output is compared with a predetermined value by a subtracter. An estimate of surface friction is updated with a value dependent upon the output of the subtracter.