Ignition device for internal combustion engines

摘要

In an internal combustion engine, an engine control device 40 judges based on a cooling water temperature of an engine in what state the engine is. When judged that the engine is in a cold state, the engine control device 40 produces an ignition signal to feed it to an igniter 6b so as to spark spark plugs 7 which are individually placed in cylinders at an exhaust stroke or expansion stroke.