| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control method of an internal combustion engine capable of suppressing emission deterioration by securing prescribed fuel injection amount, and realizing optimization of temperature of exhaust gas and engine output. SOLUTION: The internal combustion engine is equipped with an injector 11 for cylinder injection injecting fuel toward the inside of the cylinder and an injector 12 for intake port injection injecting fuel toward inside of the intake port, and operation is performed by using only the injector for intake port injection in at least prescribed operation area. When the operation is performed by only the injector for intake port injection, deposit adhesion amount to the injector for the injection in the cylinder is calculated based on the value of the parameter involving the deposit adhesion amount. When the operation is shifted from only port injection to a direct injection operation, the fuel injection amount by the direct injection is adjusted according to the calculated deposit adhesion amount. COPYRIGHT: (C)2005,JPO&NCIPI
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