| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel controller for an internal combustion engine capable of precisely estimating an intake air flow of the internal combustion engine having a bypass passage and air bypass valve for bypassing a compressor of a supercharger by suitably controlling an air-fuel ratio. SOLUTION: The fuel controller for an internal combustion engine determines whether or not the air bypass valve 7 remains open in response to supercharging pressure P3TC, intake pressure PBA, and atmospheric pressure PA, and calculates an intake air flow GAIRCYLN of a cylinder in response to the intake pressure PBA and the number NE of engine rotations when determining that the air bypass valve 7 remains open. When the air bypass valve 7 is not open, the intake air flow GAIRCYLN of a cylinder is calculated in response to an intake air flow sensor 22. A basic amount of fuel supplied to the engine is calculated in response to the intake air flow GAIRCYLN of a cylinder. COPYRIGHT: (C)2008,JPO&INPIT
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