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:
Jan. 24, 1984
Filed:
Nov. 18, 1981
Shosuke Suzuki, Kariya, JP;
Teruyoshi Ito, Kariya, JP;
Yukio Sakakibara, Aichi, JP;
Takashi Yamada, Nishio, JP;
Fumiyoshi Kubo, Kawasaki, JP;
Kunimasa Yoshimura, Mishima, JP;
Mitsuyuki Ugajin, Toyota, JP;
Kiyokane Kaji, Toyota, JP;
Mitsuyuki Banno, Toyota, JP;
Nippondenso Co., Ltd., Kariya, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
In response to the occurrence of knocking in an internal combustion engine, the basic ignition timing is corrected in a direction to retard it through the charging and discharging of an integrator circuit. The integrated current output of the integrator circuit is varied in accordance with a voltage corresponding to the speed of the engine so as to limit the maximum amount of ignition timing retard at low speeds or high speeds of the engine.