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Methods for determining exhaust emissions and efficiency of a vehicle and a display

  • US 8,478,501 B1
  • Filed: 11/05/2012
  • Issued: 07/02/2013
  • Est. Priority Date: 11/13/2009
  • Status: Active Grant
First Claim
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1. A method for determining an emission flow rate of at least one CO2 equivalent gas from an exhaust system of an internal combustion engine of a vehicle, the engine powered by a fuel and the exhaust system comprising a catalytic converter, the method comprising:

  • collecting fuel data for the fuel;

    generating an emissions factor for the at least one CO2 equivalent gas;

    collecting engine data for the engine;

    collecting catalyst data for a catalyst;

    generating a combustion factor for the at least one CO2 equivalent gas; and

    generating the emission flow rate for the at least one CO2 equivalent gas based on a flow rate of the fuel to the engine and the respective emissions factor and the combustion factor.

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