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:
Jun. 23, 1981
Filed:
Jun. 12, 1979
Toshiharu Iwata, Aichi, JP;
Tadashi Hattori, Okazaki, JP;
Siniti Mukainakano, Okazaki, JP;
Kenji Goto, Susono, JP;
Daisaku Sawada, Susono, JP;
Nippon Soken, Inc., Nishio, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
A method for controlling the ignition timing of internal combustion engines in which the magnitude of knocking is detected for each of at least two different magnitude levels. A knocking signal representing the detected magnitude level of the knocking and produced in each combustion cycle of the engine is sampled for a predetermined number of combustion cycles of the engine, and an ignition timing correction signal is produced to effect either to retard or advance depending on whether the sampled number of the knocking signals is above or below a predetermined reference number.