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:
Oct. 03, 1989
Filed:
Jul. 13, 1988
Applicant:
Inventor:
Akihiko Araki, Gunma, JP;
Assignee:
Japan Electronic Control Systems Company, Limited, Isezaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123422 ; 123417 ;
Abstract
A spark ignition control system distinguishes engine operating condition between low engine load range where acceleration shock tends to be created and high engine load range where acceleration shock to be created is small and better acceleration characteristics is required. The spark ignition timing control system performs spark advance retarding control while the engine is in the low engine load range and in response to acceleration demand. On the other hand, the spark advance retarding control is disabled in the high engine load range.