| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection amount control device of an internal combustion engine, capable of properly determining the fuel amount to be injected even in a state before the complete warm-up. SOLUTION: This fuel injection amount control device determines the fuel injection amount fi to be injected by calculating the fuel amount to be used for the combustion in a combustion chamber based on the fuel deposition fw on an intake passage component, the in-space mixed fuel amount fmix which is mixed in engine oil interposed in the space between a cylinder and a piston, and the fuel amount fcr flowing into the combustion chamber again which is the amount of the fuel droplet fbi leaking in a crank case via a space from the combustion chamber and mixed in engine oil stored in the crank case, and evaporated, and re-flowing in the combustion chamber. Therefore, even if the internal combustion engine is in a state either before or after the complete warm-up, the fuel injection amount fi is determined to be adequate, and the air-fuel ratio of the engine is adjusted to a target value. COPYRIGHT: (C)2004,JPO
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