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:
Aug. 11, 1992
Filed:
Jan. 21, 1992
Yoshiyuki Etoh, Kanagawa, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
A system and method for automatically controlling a vehicle speed to a desired cruise speed are disclosed in which a target opening angle of an engine throttle valve through which the vehicle can maintain a set cruise speed is derived in accordance with a prepared non-linear characteristic table and an opening angle of the throttle valve is controlled so that a detected vehicle speed coincides with the set cruise speed and a detected opening angle of the throttle valve coincides with the target opening angle. In addition, when the detected vehicle speed and detected opening angle are substantially constant for a predetermined time due to the vehicle being run on a flat road, average values of both detected vehicle speed and detected opening angle are derived and the above-described non-linear characteristic is corrected using both average values.