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:
Jan. 25, 1994
Filed:
Jun. 25, 1992
Makoto Kawamura, Hiroshima, JP;
Toshiaki Tsuyama, Higashihiroshima, JP;
Kazutoshi Nobumoto, Hiroshima, JP;
Haruki Okazaki, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A traction control system for a motor vehicle having driving wheels and driven wheels. The traction control system comprises sensors for detecting a speed of each of the driving wheels of the vehicle; sensors for detecting a speed of each of the driven wheels of the vehicle; and a mechanism for calculating a slip value of the driving wheels based on the detected speeds of the driving and driven wheels. The traction control system also includes an engine output control mechanism for controlling each of the driving wheels so that the slip value of each of the driving wheels is controlled to become equal to a predetermined first desired slip value when the slip value of each driving wheel is greater than the predetermined first desired slip value; and a brake force control mechanism for controlling each of the driving wheels so that the slip value of each of the driving wheels is controlled to become equal to a predetermined second desired slip value when the slip value of each driving wheel is greater than the predetermined second desired slip value. The control system also includes an engine control restriction mechanism for restricting the engine output control mechanism while the braking control is carried out.