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:
Aug. 20, 1991
Filed:
May. 22, 1990
Applicant:
Inventors:
Kazuyoshi Nakaki, Hiroshima, JP;
Masaaki Matsukado, Hiroshima, JP;
Yoshiharu Sugiyama, Hiroshima, JP;
Yuji Matsuno, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123422 ;
Abstract
A control system for controlling the timing for sparking an engine is adapted to retard a spark timing in a predetermined amount at the time of accelerating. An amount of retarding the spark timing at the time of accelerating is set to be gradually increased and then to be gradually decreased. The retarding amount at the time of accelerating is preferably changed in each spark cycle, namely, in each spark timing.