| 摘要 |
PURPOSE:To prevent fuel injection quantity from reduction and alternator capacity from increase by forecasting the output voltage drop of the alternator during a period from the beginning of current supply to an ignition coil to the ignition and correcting the ineffective injection time of a fuel injection valve by the voltage drop when the injection starting period overlaps this voltage drop period. CONSTITUTION:When fuel in a combustion chamber will be fired by an ignition plug 4, current is supplied to an ignition coil 6 just before the ignition to accumu late ignition energy. Here, when a period from the beginning of current supply to the ignition coil 6 to the ignition coincides with the injection period of an injector, ineffective injection time of the injector is corrected by the voltage drop during the current supply period. Thus, the fuel injection quantity is prevented from reduction and the capacity of an alternator is prevented from increase.
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