| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of realizing excellent homogeneous combustion by suppressing dilution of engine oil along with adhesion of fuel to a cylinder bore and fully vaporizing injected fuel even when the engine speed is quite high, in a cylinder injection spark ignition internal combustion engine provided with a fuel injection valve for injecting the fuel to the cylinder bore so as to carry out the homogeneous combustion. SOLUTION: The fuel injection valve can carry out fuel injection at a first injection pressure and fuel injection at a second injection pressure higher than the first injection pressure. A first engine speed N1 and a second engine speed N2 higher than the first engine speed are set. When the engine speed is the first engine speed or lower, the fuel injection valve carries out the fuel injection at the first injection pressure by splitting the injection. When the engine speed is the second engine speed or higher, the fuel injection valve carries out the fuel injection at the second injection pressure without splitting the injection. COPYRIGHT: (C)2008,JPO&INPIT
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