Toyota Jidosha Kabushiki Kaisha

Shoji Nakahara

Shizuo Sasaki

Kouji Yoshizaki

Hiroki Murata

Taro Aoyama

Yoshihiro Hotta

Kiyomi Nakakita

Kazuhisa Inagaki

Yoshiki Hashimoto

Nobuki Kobayashi

Cylinders of a diesel engineare provided with cylinder pressure sensorstofor detecting combustion chamber pressures. An electronic control unit (ECU)of the engine selects optimum combustion parameters in accordance with a fuel injection mode of fuel injectorstoof the engine and a combustion mode determined by the amount of EGR gas supplied from the EGR valvefrom among a plurality of types of combustion parameters expressing the combustion state of the engine calculated based on the cylinder pressure sensor output and feedback controls the fuel injection amount and fuel injection timing so that the values of the combustion parameters match target values determined in accordance with the engine operating conditions. Due to this, the engine combustion state is controlled to the optimum state at all times regardless of the fuel injection mode or combustion mode.

Control system for internal combustion engine

Growing community of inventors

Aichi-gun, Japan

Shoji Nakahara