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:
Oct. 30, 1990
Filed:
Aug. 12, 1988
Applicant:
Inventor:
Glyn P Farr, Warwick, GB;
Assignee:
Lucas Industries public limited company, Birmingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
180197 ; 180244 ; 303103 ; 188355 ;
Abstract
A traction control system for the driven wheels of a road vehicle includes a modulation unit which controls fluid flow from a master cylinder actuated via a servo unit to supply fluid under pressure to a spinning driven wheel in order to reduce the degree of spin and increase the torque transmitted to the other driven wheel. The servo unit is actuatable independently and by itself when spin control is required, by way of a solenoid valve which causes a part of the normal output force of the servo to be applied to the master cylinder for the purpose of spin control.