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Engine air-fuel control for an engine with valves that may be deactivated

  • US 20050205074A1
  • Filed: 03/19/2004
  • Published: 09/22/2005
  • Est. Priority Date: 03/19/2004
  • Status: Active Grant
First Claim
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1. A method to control air-fuel ratios in individual cylinders of an internal combustion engine with electrically actuated valves, the method comprising:

  • operating at least an electrically actuated valve in each cylinder combusting an air-fuel mixture during a cycle of said engine; and

    correcting an air and fuel mixture supplied to each cylinder combusting an air-fuel mixture based on a desired air-fuel mixture in said each cylinder combusting an air-fuel mixture.

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