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METHOD TO REDUCE ENGINE COMBUSTION AND HARMONIC NOISE FOR MISFIRE DETECTION

  • US 20140172279A1
  • Filed: 12/14/2012
  • Published: 06/19/2014
  • Est. Priority Date: 12/14/2012
  • Status: Active Grant
First Claim
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1. A method to Reduce Engine Combustion and Harmonic Noise for Misfire Detection on a sensor signal in a vehicle comprising the steps of:

  • determining combustion and harmonic noise correction factors for current operating conditions of an engine corresponding to the actual vehicle;

    applying the combustion and harmonic noise correction factors to a sensor signal, thereby removing engine combustion and harmonic noise from the sensor signal and leaving a misfire data signal in the sensor signal output.

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