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Cylinder deactivation for an internal combustion engine

  • US 20050204727A1
  • 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 for determining the number of cylinders and valves to operate in an internal combustion engine with electrically actuated valves, the method comprising:

  • determining an operating condition of said internal combustion engine;

    selecting a number of cylinders in which to carry out combustion, based on said operating condition;

    determining a number of electrically actuated valves to operate in said selected cylinders; and

    operating said number of electrically actuated valves in said selected cylinders during a cycle of said internal combustion engine.

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