Patent ID: 6513496
Filing Date: 2003-02-04
Classification: F02D

Abstract:
A fuel control apparatus for controlling fuel injection of an engine having a plurality of cylinders, comprising:basic fuel calculation means for calculating a basic amount of fuel to be injected to respective cylinders of an engine in accordance with an engine running condition; adjustment deciding means for deciding a total amount of adjustment to be ultimately applied to the basic amount of fuel on the basis of an engine revolution speed deviation between the respective cylinders; adjustment necessity determination means for determining whether the adjustment is needed to the basic fuel on the basis of the engine running condition; and final fuel deciding means for deciding a total amount of fuel to be injected into the respective cylinders on the basis of the basic amount of fuel and a stepwise adjustment, which increases stepwise to or decreases stepwise from the total amount of adjustment, when the adjustment necessity determination means changes its determination.