| 摘要 |
PROBLEM TO BE SOLVED: To prevent deterioration of an air/fuel ratio condition at starting time and just after starting of an engine adopting a hydraulic throttle actuator, improve startability and stability just after starting, and properly obtain a fuel injection amount and a throttle valve opening corresponding to a target intake air amount. SOLUTION: Based on an engine speed and intake pipe pressure, an actual stroke intake air amount Ga per 1 cylinder 1 intake stroke is set, a required stroke intake air amount MGa1 corresponding to a required output by a driver is set, also an idle required stroke intake air amount MGa2 is set. During the time a throttle opening is larger than a preset value in a value smaller than a degree, by the Ga, a fuel injection amount and a throttle opening control amount are set to a target stroke intake air amount MGa3 (S125), after the throttle opening is decreased to the preset value or less, by an integrated target stroke intake air amount A (S113) adding the MGa1/MGa2, the fuel injection amount and the throttle opening control amount are set to the target stroke intake air amount. |
