| 摘要 |
PURPOSE:To obtain the stable state of operation constantly by operating an ignition plug in accordance with the ignition timing based on a computed result and the ignition timing based on the input time of the signal to detect a fixed angle position after the reference angle position of the above-said ignition timing. CONSTITUTION:A captioned device is provided with a digital computer 10 into which signals of position sensors 2 and 3 on the circumference of a disk 1 synchronized with the revolution of an engine and signals of a clock generator 6 and a latch circuit 9 are inputted. This computer 10 sends a control signal based on the ignition timing computed in accordance with the number of revolutions of the engine to an FF circuit 15 via register 11, 12, accord circuits 13 and 14, and controls an ignition coil 19. In this construction, a delay circuit 23 into which an output signal P2 of the position sensor 3 is inputted is provided for outputting a signal RE obtained by delaying the signal P2 by a fixed time. This signal RE and an output signal R of the accord circuit 14 is inputted into an OR gate 24, and the output signal Re thereof is inputted into a reset terminal of the FF circuit 15. |
