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:
Mar. 14, 1989
Filed:
Oct. 28, 1987
Makoto Shimada, Kyoto, JP;
Takashi Dogahara, Farmington Hills, MI (US);
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed herein is a device for controlling a vehicle engine by controlling a throttle valve by the drive-by-wire method. Using the fact that an acceleration is proportional to an excess torque, a target torque is determined in accordance with a predetermined functional equation by using as input information a target acceleration determined based on the degree of operation of a man-controlled member, the current running acceleration and the current output torque. A target throttle opening rate is set further from the target torque. The throttle valve is then controlled to achieve the target throttle opening rate to predictably control the acceleration, whereby high-accuracy engine control is materialized and drivability is improved.