Nippondenso Co., Ltd.

Toyota Jidosha Kogyo Kabushiki Kaisha

Fumiyoshi Kubo

Takashi Yamada

Kunimasa Yoshimura

Teruyoshi Ito

Yukio Sakakibara

Kiyokane Kaji

Mitsuyuki Ugajin

Mitsuyuki Banno

Shosuke Suzuki

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.

Ignition timing control system for internal combustion engines

Growing community of inventors

Kawasaki, Japan

Fumiyoshi Kubo