INTERNAL COMBUSTION ENGINE CONTROLLER

摘要

PROBLEM TO BE SOLVED: To suppress the air-fuel ratio of an air-fuel mixture from becoming inappropriately lean in the fuel injection control over an internal combustion engine with a brake booster.SOLUTION: Provided is an internal combustion engine controller configured so that a fuel injection quantity is corrected in response to the magnitude of the difference between an estimated intake pressure based on an output signal from an air flow meter disposed upstream of a connected part of a brake booster in an intake passage and a measured intake pressure based on an output signal from an intake pressure sensor disposed closer to or downstream of the connected part or disposed in a surge tank, or that the fuel injection quantity is corrected in response to the magnitude of the difference between a measured intake flow rate based on the output signal from the air flow meter disposed upstream of the connected part of the brake booster in the intake passage and an estimated intake flow rate based on the output signal from the intake pressure sensor disposed closer to or downstream of the connected part or disposed in the surge tank.