Control device for direct injection engine, has injection valve and spark plug, which are arranged in combustion chamber and combustion mode change unit changes radiation guided combustion mode to other combustion mode

摘要

The control device (80) has an injection valve (30)and a spark plug (40), which are arranged in the combustion chamber (22). The combustion mode change unit (87) changes the radiation guided combustion mode to the other combustion mode in correlation with the combustion stability. The fuel is injected from the injection valve in fuel injection time control in the other combustion mode, which differs from fuel injection time controls in the radiation guided combustion mode.