INTERNAL COMBUSTION ENGINE AIR/FUEL RATIO CONTROLLER

摘要

An air/fuel ratio controller wherein on the assumption that the in-cylinder intake air amount sucked into the combustion chamber is equal. Fbaset(=(abyfs(k)/abyfr(k)).Fi(k-M)) is determined from the relation that the product of the command final fuel injection amount Fi(K-M) and the detected air/fuel ratio abyfs(k) is equal to the product of the target command basic fuel injection amount Fabset for causing the actual air/fuel ratio of the engine to reach the target air/fuel ratio abyfr(k) and the target air/fuel ratio abyfr(k), the Fbaset is divided by the uncorrected command basic fuel injection amount Fbaseb(k) to determine the basic fuel injection amount correction coefficient KF(=Fbaset/Fbaseb(k)), the net uncorrected command basic fuel injecting amount Fbaseb is multiplied by the KF to correct the next uncorrected command basic fuel injection amount Fbaseb.