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Fuel injection controller of engine

  • US 20010050072A1
  • Filed: 06/01/2001
  • Published: 12/13/2001
  • Est. Priority Date: 06/07/2000
  • Status: Active Grant
First Claim
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1. 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.

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