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Component vibration based cylinder deactivation control system and method

  • US 8,108,132 B2
  • Filed: 02/12/2008
  • Issued: 01/31/2012
  • Est. Priority Date: 01/04/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining a vehicle vibration limit based upon at least one of a vehicle speed (KPH), a coolant temperature of the engine and a signal from a user actuated economy switch, wherein the vibration limit is increased by a correction factor based on the signal;

    measuring a vehicle vibration level; and

    modifying an active cylinder count based on the vehicle vibration limit and the vehicle vibration level;

    wherein determining the vehicle vibration limit is based upon a signal from a user actuated economy switch, wherein the vibration limit is increased by a correction factor based on the signal.

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