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. 24, 1981
Filed:
Oct. 04, 1979
Masumi Kinugawa, Kariya, JP;
Hisamitsu Yamazoe, Kariya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An engine control system which controls the engine fuel injection amount and the ignition timing by being supplied with and processing the rotational speed signal produced on the basis of the output of a rotational speed sensor producing the rotational speed signal at every predetermined engine crank shaft angle and an intake air amount signal from an air amount sensor for detecting the intake air amount of the engine. At certain predetermined engine rotational angles, the rotational speed signal and the intake air amount signal are read and compared with the previously-read rotational speed signal and intake air amount signal respectively, thus detecting changes therein respectively. These changes and signal values are used to correct control signals for ignition timing and fuel injection amount.