Nissan Motor Company Limited

Takatoshi Saitou

Tadaki Mano

Kazuyuki Kogiso

Kunpei Tomioka

Nobuyuki Edamatsu

Kohei Kubota

Daisei Nagaoka

Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.

Growing community of inventors

Kanagawa, Japan

Takatoshi Saitou