| 摘要 |
PURPOSE:To attempt enhancement of both drivability of an engine and emission of fuel by increasing or decreasing the basic fuel injection quantity by a certain rate, in the case of accelerating or decelerating an internal-combustion engine respectively. CONSTITUTION:It is judged in process 104, whether the amount of car speed variation DELTASPD/2sec is larger than zero (acceleration) of smaller than zero (deceleration). When the amount of car speed variation DELTASPD is positive, the basic fuel injection quantity TP is uniformly increased of a certain rate in process 105. When the car speed SPD is larger than 10km/h the basic injection quantity TP is uniformly decreased by a certain rate, in process 107. Thus, the responsiveness of feedback control of air fuel ratio during a transient operation of an engine can be improved so that enhancement of both drivability and emission can be well attempted.
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