| 摘要 |
PURPOSE:To prevent the occurrence of knocking during quick acceleration, and to prevent overlagging of an ignition timing after detection of the precise flow rate of the intake air. CONSTITUTION:At step 72, a rapid increase in the opening of a throttle valve is detected. In the case of YES, a lag angle correcting amount thetaac is set to about 8 deg. at step 73. Processes at steps 77-82 are carried out by interruption effected every 4m/sec or so. At step 80, the correcting amount of a lag angle is advanced by about 0.1 deg. at one time every 4m/sec or so. At step 81, a correcting amount of a lag angle thetaac is prevented from advancing by more than about 0 deg.. This permits prevention of overlagging of an ignition timing. |
