Yamaha Hatsudoki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Fumitoshi Sugiyama

Masanao Idogawa

Seiji Hirowatari

Masahiko Teraoka

Sadao Nogi

Mamoru Yoneyama

Dai Takida

An engine ECU executes a program including: the step of outputting a fuel-cut instruction when conditions that an accelerator position PA is not higher than a threshold value and a rate of increase DNE of engine speed NE is not lower than a determination value DNE() are satisfied; the step of fully closing throttle opening; and the step of suspending ignition of air-fuel mixture by a spark plug.

Internal combustion engine controller

An induction control system for an internal combustion engine and an operator for controlling the control valve. The system operates so as to move the control valve between an unrestricted flow position and another position wherein the flow velocity or direction is changed. The valve is moved between these positions at varying rates depending upon the engine running condition so as to provide quicker response under some conditions than others.

Engine control

Growing community of inventors

Hamamatsu, Japan

Fumitoshi Sugiyama