| 摘要 |
The invention relates to a controller of an internal combustion engine with a supercharger and intends to suppress an ignition request voltage from excessively rising and to improve a fuel consumption in the case where a fuel cut for suppressing an abnormal combustion from continuously occurring in a supercharged region is executed. The controller of an internal combustion engine with a supercharger includes, for each of cylinders, fuel supply means for supplying a fuel in the cylinder, and an ignition plug. A basic ignition timing for generating a spark by the ignition plug is set depending on an operation state of the internal combustion engine. For each cycle, an abnormal combustion generation cylinder in which an abnormal combustion is generated in a supercharged region is detected. A fuel cut is executed to stop a fuel supply by the fuel supply means for the abnormal combustion generation cylinder. An ignition timing of the abnormal combustion generation cylinder is changed such that a crank angle width between a compression top dead center and the basic ignition timing is expanded during several cycles after start of the fuel cut. Further after elapse of the several cycles, an ignition cut that prohibits a spark from being generated by the ignition plug is executed. |
