| 摘要 |
PURPOSE:To prevent occurrence of knocking to eliminate a loss in output power, by providing an acceleration spark retarding amount compensating means for decreasing the amount of acceleration spark retardation by an acceleration spark retarding means as the degree of learning by a learning control means becomes high. CONSTITUTION:An electronic control device 40 is connected thereto with an air flowmeter 2, an air-fuel ratio sensor 15, a knock sensor 34, a crank angle sensor, a fuel injection valve 6 and an ignition coil 33. This electronic control device 40 also serves as a learning control means, an acceleration spark retarding means and an acceleration spark retarding amount compensating means. When a vehicle is accelerated, if the degree of the learning is low, the acceleration is sufficiently made. Further, if the degree of the learning becomes high, the amount of acceleration spark retardation is decreased to spark-retard more than necessity. thus, it is possible to prevent occurrence of knocking to eliminate a loss in output power. |
