| 摘要 |
PROBLEM TO BE SOLVED: To prevent the accumulation of deposit by adjusting a control amount of an injector to lower a temperature of each injector nozzle part corresponding to an engine operating state in a fuel direct injection-type engine having cylinders different from each other in a length of an intake pipe or an exhaust pipe. SOLUTION: The fuel in a paper separator tank 29 is preloaded by a fuel preloading pump 30, pressurized by a high-pressure fuel pump 32, and then supplied to injectors 13 mounted on cylinders #1-#6 through a fuel supply rail 33. On this occasion, a basic map value Fnm of a control amount of each cylinder is determined on the basis of an engine rotational speed and a detected value of a throttle opening, and then an injector correction amount Cnm of a cylinder of which a temperature of a nozzle part of the injector 13 is high, is determined to control the injector 13 by an ECU 42. The operation of Fnm×Cnm is executed, and an injector control amount of a cylinder of which a temperature of the nozzle part of the injector is relatively low, is operated to control the fuel injection amount of each cylinder.
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