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Exhaust system having temperature sensor verification

  • US 20090143953A1
  • Filed: 11/30/2007
  • Published: 06/04/2009
  • Est. Priority Date: 11/30/2007
  • Status: Active Grant
First Claim
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1. An exhaust system, comprising:

  • a first sensor disposed to sense a first temperature of an exhaust flow;

    a second sensor disposed to sense a second temperature of the exhaust flow;

    a controller in communication to receive from the first and second sensors signals indicative of the first and second temperatures, the controller being configured to;

    compare the signals indicative of the first and second temperatures during exhaust system thermal equilibrium;

    determine whether at least one of the signals indicative of the first and second temperatures is inaccurate based on the comparison; and

    affect a system reaction if it is determined that at least one of the signals indicative of the first and second temperatures is inaccurate.

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