Toyota Jidosha Kabushiki Kaisha

Akiyoshi Negishi

Yoshiyasu Ito

Ryo Suzuki

Shinichi Takeuchi

Katsuya Kobayashi

Kazuya Kibe

Yusuke Saigo

Takeshi Kaino

Shin Okada

A vehicle engine control device stopping fuel injection if a predetermined fuel cut condition is satisfied, is provided, during running with the fuel injection stopped, when inertia of a power transmission system rotating with the engine has a smaller rate of inertia of the power transmission system acting on rotation of an output shaft of the engine, the fuel injection being started at a lower engine rotation speed as compared to the case of a larger rate of inertia of the power transmission system acting on rotation of the output shaft of the engine, a clutch capable of connecting and interrupting power transmission between the engine and the power transmission system being interposed between the engine and the power transmission system, a rate of inertia of the power transmission system acting on rotation of the output shaft of the engine being configured to decrease as a clutch stroke of the clutch that is an operation amount of a clutch pedal increases, and an engine rotation speed for starting the fuel injection being set to a lower value as the clutch stroke increases.

Vehicle engine control device

An intake air pressure Pand a target control value Sunder the condition that the internal combustion engine is in a steady operating state and the condition that the turbocharger has its supercharging efficiency set to a ratio according to the engine operating state are estimated based on engine parameters, and an intake air pressure Pand a target control value Sunder the condition that the internal combustion engine is in the steady operating state and the condition without supercharging by the turbocharger are estimated based on the engine parameters. A target control value Sassociated with an actual intake air pressure Punder the condition that the internal combustion engine is in a transient operating state is calculated by performing interpolation on the target control values S, Sbased on a relation between the intake air pressures P, Pand the actual intake air pressure P

Control apparatus for internal combustion engine

Growing community of inventors

Aichi, Japan

Akiyoshi Negishi