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Electrically heated particulate filter diagnostic systems and methods

  • US 7,594,940 B2
  • Filed: 06/08/2007
  • Issued: 09/29/2009
  • Est. Priority Date: 06/08/2007
  • Status: Expired due to Fees
First Claim
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1. A system comprising:

  • a grid module that diagnoses a fault of a resistive grid that heats a particulate filter of an exhaust system of a vehicle based on a voltage signal of the resistive grid; and

    a diagnostic module that at least one of sets a fault status and generates a warning signal based on the fault.

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