| 摘要 |
PURPOSE:To enable adequate injection timing to be continually controlled in no relation to deterioration or the like of an ignition sensor, by equipping an engine with two means, for detecting actual ignition timing of the engine, and changing a correction rate for correcting required ignition timing on the basis of a difference between detection results of these two means. CONSTITUTION:The captioned device detects actual ignition timing in a detecting means M3 from the period when a signal of an ignition sensor M2, additionally provided in an engine M1, exceeds a predetermined threshold value. And the device, in which required ignition timing obtained in a calculating means M5 from an output of an operative condition detecting means M4 is corrected in a correcting means M6 by a predetermined correction rate determined in accordance with said actual ignition timing, controls an ignition timing adjusting part M7 by the required ignition timing after it is corrected. Here the detecting means M3 is constituted of the first and second actual ignition timing detecting means M9, M10, and a difference of detection results of these means is calculated by a difference calculating means M11. And on the basis of this difference, the predetermined correction rate of the correcting means M6 is changed by a correction rate changing means M12. |
