| 摘要 |
PURPOSE:To improve the fuel consumption rate by decreasing and correcting the fuel feed quantity based on the preset correction value when an engine is in a non-idling state after warm-up and the engine rotation is in a normal rotation area in a region not applied with full-scale supercharging. CONSTITUTION:When a vehicle is running, if a microcomputer 9 judges that an engine 1 is in a non-idling state based on the output of an idle switch 11, next it judges whether an economy switch 21 is on or not. If it judges that the economy mode is selected, it judges whether the engine is in a warm-up completion state or not based on the output signal of a water temperature sensor 12. If it judges a yes, it then judges whether the intake air is supercharged on a full scale or not based on the output signal of an intake air pressure sensor 13. In case of a yes, the fuel injection through an injector 8 is decreased and corrected based on the predetermined correction value, provided that the engine rotation is in the normal rotation area.
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