| 摘要 |
PURPOSE:To permit cost cut for a controller by controlling the energizing time for each injection valve to each proper value by using a single counter, in the lap injection state in which fuel injection is carried out simultaneously between a plurality of cylinders. CONSTITUTION:During the operation of an engine 1, an ECU 5 calculates the fuel injection time (energizing time) on the basis of the output signals of an intake pipe absolute pressure sensor 8, engine revolution speed sensor 11, etc. A counter starts counting the energizing time for a fuel injection valve 6, and starts the energizing for the fuel injection valve 6. In this case, before an energizing starting instruction is outputted, the pressure of other injection valves 6 in energizing is detected. If 'presence' is detected, the count value at present on the counter is read and the difference from the calculated energizing time is obtained and memorized. When the counting on the counter is completed, and an interruption signal is generated, the above-described difference is set on the counter, and counting is restarted.
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