| 摘要 |
<p>PROBLEM TO BE SOLVED: To optimize a lag amount of an ignition timing in lag correction of the ignition timing for suppressing vibration of a vehicle.SOLUTION: A variation amount per unit time is estimated from a measured value of an engine speed. An engine speed is estimated from a measurement value of a vehicle speed, a dynamic load radius of a wheel, and a transmission gear ratio of a driving system, and a variation amount per unit time of the estimation value of the engine speed is calculated. Based on the former variation amount and the latter variation amount, a lag correction amount of an ignition timing in an acceleration period in which the engine speed increases is determined.</p> |
