| 摘要 |
PURPOSE:To improve operation performance and acceleration performance by always obtaining optimum air fuel ratio by installing a control circuit which mainly receives the signal read as timing control value and the engine revolving speed, etc. and calculates the demanded fuel quantity. CONSTITUTION:In S3, preengagement state is judged, and if the judgement is YES, the AD conversion for the suction flow-rate signals of an air flow meter is carried-out in S32, and in S33, the AD conversion value is stored as the intake flow rate Qa. The fundamental injection quantity Tp is calculated in S36, and a variety of correction coefficients COEF are calculated in S37, and the ineffective driving pulse width Ts is calculated in S38, and the injection applied pulse width Ti is calculated in S39. Therefore, the always optimum air fuel ratio can be obtained, and drivability and acceleration performance can be improved.
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