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SYSTEM AND METHOD FOR CONTROLLING SPARK TIMING WHEN CYLINDERS OF AN ENGINE ARE DEACTIVATED TO REDUCE NOISE AND VIBRATION

  • US 20140053805A1
  • Filed: 03/13/2013
  • Published: 02/27/2014
  • Est. Priority Date: 08/24/2012
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a cylinder activation module that selectively deactivates and reactivates a cylinder of an engine based on a driver torque request; and

    a spark timing module that, when the cylinder is deactivated, selectively increases an amount by which spark timing of at least one active cylinder of the engine is retarded based on noise and vibration generated by the engine when the cylinder is deactivated.

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