| 摘要 |
PURPOSE:To keep the air fuel ratio at a transient time of a desired value by increasing an injection quantity from the operation of a supercharger till a defined time has elapsed, at the time of low load when the opening of a throttle valve is small on operating said supercharger. CONSTITUTION:A supercharger 1 which is controlled in its operation via a supercharger operating means 3 in accordance with an engine speed detected by an engine speed detecting means 2, is provided in an intake pipe. The quantity of intake air which passes through this intake pipe is detected by an intake air quantity detecting means 5 and the feeding quantity of fuel is set in accordance with the detected signal by a setting means 6, to control a fuel feeding means 4. And, when a supercharger operation detecting means 7 for detecting the supercharger 1 immediately after entering an operating area by means of engine speed, has detected the operation of the supercharger while the load detected by a load detecting means 8 is low load, a fuel feed setting quantity in the setting means 6 is increased in accordance with the output of a quantity increasing means 9.
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