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:
Apr. 14, 1981
Filed:
Jun. 11, 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 of and apparatus for controlling ignition timing of an internal-combustion engine in accordance with the degree of knocking, the apparatus comprising a knock detector for detecting a vibration corresponding to knocking of the internal-combustion engine, a knock detector circuit responsive to output from the knock detector for detecting the knocking of the internal-combustion engine, and corrective advance computing circuit responsive to an output signal from the knock detector circuit for controlling ignition timing of the engine, wherein the corrective advance computing circuit counts the number of knocks detected during a period of predetermined combustion cycles, compares the number of knocks with a predetermined number, and controls ignition to advance or delay it in accordance with the result of comparison.