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:
Jun. 25, 1996
Filed:
Jul. 14, 1994
Tetsuhiro Yamashita, Hiroshima, JP;
Koji Hirai, Hatsukaichi, JP;
Mazda Motor Corporation, Hiroshima-ken, JP;
Abstract
A traction control system for a motor vehicle has an engine with a catalytic converter in an exhaust path. The traction control system has wheel speed sensors for detecting wheel speeds of respective wheels, a slip amount detection device for calculating slip amounts in driven wheels based on the wheel speeds, an engine output controller for decreasing engine output based on predetermined engine output decreasing patterns which correspond to the slip amounts, and an octane number detection device for detecting a difference in octane numbers of fuel between fuel designated in the engine and fuel actually supplied to the engine. The engine output decreasing pattern is changed so as to decrease unburned hydrocarbons in the exhaust gas flown into the catalytic converter when the octane number of the actually supplied fuel is more than a predetermined number smaller than that of the designated fuel.