| 摘要 |
An apparatus for controlling an internal combustion engine controls an air amount bypassing a throttle valve of the engine. The air amount is decreased according to a difference between an actual rotational speed and a target rotational speed after a completion of a fuel-cut. Therefore, the rotational speed is quickly lowered. The decrease control is finished when the actual rotational speed reaches near a target rotational speed, simultaneously a feedback control is started. The feedback control accurately maintains the actual rotational speed at the target rotational speed. As a result, it is possible to improve fuel consumption and to prevent a stall and a vibration of the engine.
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