| 摘要 |
PURPOSE:To enable to inject fuel exactly and at a proper rate, by detecting the supply voltage of a fuel injection control means, and prohibiting main fuel injection or executing starting fuel injection according to the detected supply voltage of the fuel injection control means. CONSTITUTION:The titled apparatus controls a fuel injection means M3 by calculating the injection quantity of fuel from the output of an operational-condition detecting means M3 and comprises a fuel injection control means M4 for effecting main fuel injection in synchronism with rotation of an internal combustion engine M1. Here, the apparatus comprises further a first supply voltage monitoring means M5 for detecting that the supply voltage has exceeded a first monitoring voltage V1 higher than the lowermost operation voltage of said means M4 and a second supply voltage monitoring means M6 for detecting that the supply voltage has exceeded a second monitoring voltage V2 a predetermined value higher than the first monitoring voltage V1. With such an arrangement, main fuel injection is prohibited by a main fuel injection prohibiting means M7 during the while when the supply voltage is lower than V1 but higher than V2. On the other hand, when the supply voltage is raised from under the voltage V1 to a level higher than V1, starting fuel injection is effected by a starting fuel injection means M8.
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