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:
Feb. 07, 1989
Filed:
Oct. 14, 1986
Applicant:
Inventor:
Toshimi Abo, Kanagawa, JP;
Assignee:
Nissan Motor Company Limited, Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123425 ;
Abstract
A knocking control system and method for a multi-cylinder engine includes a limit value for a retardation angle correction amount which is derived separately for each engine cylinder and prevents inappropriate ignition timing resulting from malfunction of the knock detection system. Consequently, undue engine wear can be prevented.