| 摘要 |
PURPOSE:To contrive a combustion controlling method which is less influenced by an ignition noise, by controlling an ignition device intermittently such that input data are taken only when a sparking is halted, whereas taking of ignition signal and the like are prohibitted while the sparking is produced continuously with the ignition controlled. CONSTITUTION:When a CPU1 begins a combustion control, a pilot electromagnetic valve 9 is opened and simultaneously an ignition signal (a) is output. The ignition signal is output as an ignition control signal (b), after a take-in of a logical multiply with an output (j) of frequency divider 6. An ignition device 2 causes a signal (b) to produce a time T2 of level ''H'' and a continuous spark signal (f), and stops sparking during a subsequent timing period T3. The spark stopping period timing T3 is taken an oscillating clock line (k) of oscillator 5 and a logical multiply, and is outputted as a latch clock signal of input data of latch circuit 7. In this way, the CUP I can take in noiseless input data which are produced while there is no continuous sparks developed with the ignition device 2 kept inoperative. |
