| 摘要 |
PURPOSE:To prevent deflection of air-fuel ratio due to the variation of lapse of time by varying in succession the injection timing each time when an engine repeats revolution and stop. CONSTITUTION:A CPU106 transmits a signal into a driving circuit 111 through an output interface 110. Said driving circuit 111 is equipped with a register for receiving the fuel injection timing, a counter which counts the clock signal CLK of a clock generating circuit 107 after receiving the fuel injection starting signal, and a comparator for comparing the value of the register and the value of the counter. Therefore, the comparator continues to transmit the injection pulse signals into a fuel injection valve 7 until two values accord after the fuel injection starting signal is supplied. Therefore, the fuel injection valve 7 is energized during the fuel injection time, and the fuel in the amount corresponding to the fuel injection time is supplied into the combustion chamber of an engine body 1. |
