CONTROLLER OF INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER

摘要

A controller of an engine with a supercharger includes, for each of cylinders, fuel supply system and an ignition plug. The controller includes an electronic control unit that is configured to: (i) set a basic ignition timing depending on an operation state of the engine, (ii) detect, for each cycle, an abnormal combustion generation cylinder in which an abnormal combustion is generated in a supercharged region, (iii) execute a fuel cut to stop a fuel supply by the fuel supply system for the abnormal combustion generation cylinder, (iv) change an ignition timing of the abnormal combustion generation cylinder to expand a crank angle width between a compression top dead center and the basic ignition timing for several cycles after start of the fuel cut, and (v) execute an ignition cut that prohibits a spark from being generated by the ignition plug, further after elapse of the several cycles is executed.

主权项

1. A controller of an internal combustion engine with a supercharger, which includes, for each of cylinders, fuel supply system for supplying a fuel in the cylinder and an ignition plug, the controller comprising:
an electronic control unit configured to (i) set a basic ignition timing for generating a spark by the ignition plug depending on an operation state of the internal combustion engine; (ii) detect, for each cycle, an abnormal combustion generation cylinder in which an abnormal combustion is generated in a supercharged region; (iii) execute a fuel cut to stop a fuel supply by the fuel supply system for the abnormal combustion generation cylinder; and (iv) change an ignition timing to expand a crank angle width between a compression top dead center and the basic ignition timing for several cycles after start of the fuel cut, and (v) execute an ignition cut that prohibits the spark from being generated by the ignition plug, further after elapse of the several cycles, for the abnormal combustion generation cylinder.