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Adaptable modification of cylinder deactivation threshold

  • US 20050016492A1
  • Filed: 07/24/2003
  • Published: 01/27/2005
  • Est. Priority Date: 07/24/2003
  • Status: Active Grant
First Claim
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1. An engine control system in a vehicle comprising:

  • a variable displacement internal combustion engine;

    a controller for controlling the displacement of said variable displacement internal combustion engine;

    wherein said controller adaptively determines a torque threshold used to switch the variable displacement internal combustion engine between a partially displaced operating mode and a fully displaced operating mode based on a time the variable displacement internal combustion engine operates in said partially displaced operating mode.

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