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FILTERING FOR ROUGH ROAD DETECTION

  • US 20090120175A1
  • Filed: 05/09/2008
  • Published: 05/14/2009
  • Est. Priority Date: 11/09/2007
  • Status: Active Grant
First Claim
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1. An engine misfire system comprising:

  • a rough road detection module that selectively generates a rough road indicator based upon a transmission output speed of a vehicle; and

    a misfire detection module that selectively diagnoses engine misfire and that selectively generates a misfire indicator based on diagnosed engine misfire and said rough road indicator.

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