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:
Jul. 20, 1982
Filed:
May. 21, 1980
Applicant:
Inventors:
Katsunori Oshiage, Yokosuka, JP;
Mitsuhiko Ezoe, Yokosuka, JP;
Assignee:
Nissan Motor Company, Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123425 ; 123435 ; 123415 ;
Abstract
A knocking sensor output signal of an ignition advance angle controlling device is subdivided in synchronism with the engine rotation into a knocking portion and a background portion. Both signal portions are rectified and averaged and the averaged portions are compared to derive a difference signal. The ignition advance angle is controlled to advance or to retard in response to said difference signal so as to obtain an optimum control of the advance angle in response to the amount of knocking.