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:
Dec. 17, 1991
Filed:
Jan. 19, 1990
Kazuhide Togai, Takatsuki, JP;
Yoshiaki Danno, Kyoto, JP;
Masato Yoshida, Kyoto, JP;
Makoto Shimada, Kyoto, JP;
Katsunori Ueda, Kyoto, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A slip value of a driving wheel is calculated on the basis of driving and driven wheel velocities detected by wheel velocity sensors, a target engine output of a vehicle is set in accordance with the slip value of the driving wheel, a target intake air amount to the engine is set in accordance with the target engine output, a target opening of a throttle valve is set based on the target intake air amount, an opening correction value of the throttle valve is calculated in accordance with a deviation between the target intake air amount and an actual intake air amount detected by an air flow sensor, the opening of the throttle valve is controlled to attain an opening as a sum of the target opening and the opening correction value when the air flow sensor is in a normal state, and the throttle valve opening is controlled to a basic target opening when a malfunction occurs in the air flow sensor, thereby achieving engine output control by a traction controller even when a malfunction occurs in the air flow sensor.