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:
Dec. 23, 1986
Filed:
Dec. 04, 1981
Applicant:
Inventors:
Mikio Suzuki, Zushi, JP;
Masafumi Yamazaki, Yokohama, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama City, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123425 ; 123418 ; 123421 ; 74860 ;
Abstract
A spark ignition timing control system for an automotive vehicle internal combustion engine utilizes a first sensor for detecting engine speed, a second sensor for detecting engine knocking and a third sensor for detecting transmission upshifting. The control system operates in response to the first, second and third signals to retard the spark advance angle to reduce knocking due to change in engine speed upon engine upshift.