Fuel injection amount control apparatus and method for internal combustion engine

摘要

An apparatus for controlling the amount of fuel injected into an internal combustion engine corrects the startup-time amount of air based on a required amount of air that is the amount of air needed to maintain a predetermined value of rotation speed of the engine during an idling operation after a warm-up of the engine, and computes a startup-time fuel injection amount based on a predetermined startup-time engine operation state that is other than the amount of air, and corrects the computed startup-time fuel injection amount based on the ratio between the present idling-time required amount of air and the idling-time required amount of air under a new-vehicle condition.