| 摘要 |
PURPOSE:To permit the correction control for each cylinder by comparing the actual idle revolution speed and an aimed idle revolution speed for each cylinder by a comparing means and correcting the ignition timing by an ignitor towards the direction for reducing the above-described difference by an ignition- timing correcting means. CONSTITUTION:A judging means A judges a cylinder in ignition, and an idle revolution speed detecting means B detects the actual idle revolution speed in explosion cycle for each cylinder. The actual idle revolution speed and an aimed idle revolution speed for each cylinder are compared by a comparing means C, and the ignition timing by an ignitor E is correction-controlled towards the reduction of the above-described difference by an ignition-timing correction control means D. Thus, the idle revolution speed is feedback-controlled. Therefore, the response performance and control speed can be improved, and the variation of idle revolution can be absorbed, and the stability of idle revolution can be improved, by correction-controlling the ignition timing for each cylinder. |
