| 摘要 |
<p>A revolution number control system 40 comprises ignition timing delay controlling means for delaying ignition timing from the ignition advance amount n at a first prescribed value n2 when the engine revolution number NE is between the first prescribed value n2 and a clutch-on revolution number n4, where the first prescribed value n2 is a predetermined revolution number smaller than a preset revolution number and the clutch-on revolution number n4 is the preset revolution number, and the revolution number control system 40 controls the revolution number by operating the ignition timing delay controlling means when a throttle opening sensor does not detect a change in the throttle opening. <??>By delaying ignition timing from the ignition timing at the first prescribed value when the throttle opening sensor does not detect a change in the throttle opening and the engine revolution number is between the first prescribed value and the clutch-on revolution number, it is possible to prevent the engine revolution number from reaching the clutch-on revolution number, and to control the engine revolution number with high accuracy. <IMAGE></p> |
