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:
Apr. 16, 1985
Filed:
Feb. 08, 1984
Applicant:
Inventors:
Masakazu Ninomiya, Kariya, JP;
Toshi Suda, Nagoya, JP;
Norio Omori, Kariya, JP;
Susumu Akiyama, Kariya, JP;
Hiroyasu Fukaya, Nagoya, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ; F02D / ; G06F / ; F02P / ;
U.S. Cl.
CPC ...
123486 ; 123480 ; 123417 ; 123440 ;
Abstract
An ignition timing control method and an apparatus for internal combustion engines in which the ignition timing of the engine is calculated from a base value obtained by detecting a first operation state of the engine and from a learned correction value obtained in accordance with the record content of a nonvolatile memory, the ignition timing being corrected by rewriting the nonvolatile memory in accordance with the detection result of second and third driving states of the engine, as desired.