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PORTABLE VEHICLE EXHAUST FLOW SENSOR

  • US 20090211351A1
  • Filed: 05/08/2009
  • Published: 08/27/2009
  • Est. Priority Date: 05/24/2004
  • Status: Active Grant
First Claim
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1. A method for real-time determination of exhaust gas flow through an exhaust pipe of a vehicle, the method comprising:

  • measuring a pressure difference upstream and downstream of a thin screen;

    measuring exhaust gas temperature; and

    determining the exhaust gas flow based on the pressure difference and the temperature.

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