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. 27, 1983
Filed:
Nov. 28, 1980
Applicant:
Inventor:
Mitsuhiko Ezoe, Yokosuka, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123424 ; 1231 / ; 123425 ;
Abstract
A combustion knock detection signal for retarding the ignition timing of the internal combustion engine is disabled upon detection of an unstable condition of the storage battery voltage level. Switching means is provided which is operative in response to the unstable condition of the voltage level of the storage battery to disable the knock detection signal, thereby eliminating the production of a false knock detection signal during the engine cranking operation or a certain period after the starting of the engine in which the engine speed is lower than a predetermined level.