| 摘要 |
PROBLEM TO BE SOLVED: To attain torque increase with good responsiveness without causing a racing phenomenon when an instant angular speed is rapidly reduced due to some factors during idling.SOLUTION: A flameout prediction instant peak angular speed R2 higher than a flameout prevention instant peak angular speed 1 is set, and when an instant peak angular speed is lower than the flameout prediction instant peak angular speed R2, an inflow air amount is increased at first, and ignition timing is retarded from a reference point. Thus, a standby state can be achieved without causing racing. The inflow air amount and the ignition timing are returned to the original state when the instant angular speed is returned to the original speed, and the ignition timing is advanced when the instant angular speed is decreased to the flameout prevention instant peak angular speed. The inflow air amount is increased, and therefore, torque can be instantly increased by advancing the ignition timing. Accordingly, an engine stall can be surely prevented while keeping idling engine speed as low as possible. |
