| 摘要 |
PURPOSE:To make the information of the amount of intake air accurate so as to effectuate the control of an injection amount, by correcting properly the discrepancy between the amount of the air and the calculated value of the injection amount based on a condition from the starting of the calculation of the injection amount till fuel and the air are streamed into a cylinder. CONSTITUTION:In a control unit 20, the condition of intake air which is taken into an engine 1 is detected by an intake air condition detecting means 18 comprising an air flow meter 8 and a pressure sensor 11. And a time which is needed for one stroke of the combustion cycle of the engine 1 is detected. Then, the amount of the air flow measured by the air flow meter 8 is corrected based on a time which is needed for an intake stroke, a retarding condition from the starting of the calculation of an injection amount till fuel is streamed into a cylinder, and a retarding condition till the intake air is streamed into the cylinder. And the amount of the air flow which is taken into the cylinder for the intake stroke of this time is presumed at the starting time of the calculation of the injection amount. The injection amount of the fuel necessary is calculated, based on this presumed amount of the air flow.
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