FUEL INJECTION CONTROLLER

摘要

PROBLEM TO BE SOLVED: To provide a fuel injection controller capable of improving the accuracy for calculating an inter-cylinder variation of an injection amount.SOLUTION: A fuel injection controller comprises: an injection-time angular-velocity-difference-variation calculation unit 23 calculating an inter-cylinder variation of an angular velocity difference in a compression stroke or an expansion stroke during fuel injection, and calculating a deviation of this angular velocity difference; a non-injection-time angular-velocity-difference variation calculation unit 24 calculating an inter-cylinder variation of the angular velocity difference during non-injection and calculating a deviation of this angular velocity difference; and a final-injection-amount variation calculation unit 26 calculating an inter-cylinder variation of an injection amount on the basis of the deviation of the angular velocity difference during the injection and the deviation of the angular velocity difference during the non-injection, the injection amount of the injected fuel to each cylinder 2 being corrected on the basis of the injection-amount inter-cylinder variation calculated by the final-injection-amount-variation calculation unit 26.