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:
May. 01, 1984
Filed:
Jun. 17, 1983
Applicant:
Inventor:
Kenji Ikeura, Yokosuka, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ; F02B / ;
U.S. Cl.
CPC ...
123416 ; 123417 ; 123418 ; 36443107 ;
Abstract
A method and apparatus for controlling ignition system spark timing. It is detected whether the engine is in operation with no load or in the remaining operating conditions. A digital processor is provided which uses a mathematical formula or table during no load engine operation to find value of spark advance, which mathematical formula or table is distinct from a mathematical formula or table to be used during the remaining engine operating conditions to find value of spark advance.