IGNITION DEVICE FOR ENGINE

摘要

PURPOSE:To certainly prevent knocking while preventing deterioration of combustibility in a device furnished with a plural number of ignition plugs. CONSTITUTION:A plural number of ignition plugs 17-20 and an ignition control part 23 to control their ignition are provided. Additionally, a knock sensor 24 to detect generation of knocking is provided. Additionally, an ignition stop control part 28 to stop only ignition of the ignition plugs which are part in a plural number of the plugs 17-20 and are in a region where air-fuel ratio distribution of air-fuel mixture in a combustion chamber relatively comes to be on the lean side.