| 摘要 |
PURPOSE:To improve the responsiveness of ignition timing control during an acceleration detecting means detecting the acceleration operation of an engine and a means interrupting the averaging process for a predetermined time during the acceleration operation. CONSTITUTION:During a normal operation or a deceleration operation, the averaging-processed spark advance quantity is calculated at a step 103, and an ignition plug is driven based on this averaging-processed spark advance quantity. On the other hand, during an acceleration operation, the averaging process is interrupted for a preset time tauc of a cut counter. At a step 107, the spark advance quantity in response to the current operation condition is calculated, and the ignition timing is set based on the calculated spark advance quantity. Accordingly, the ignition timing control excellent in responsiveness can be performed during the acceleration operation. |
