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Vehicle fuel consumption calculator

  • US 8,340,925 B2
  • Filed: 06/10/2010
  • Issued: 12/25/2012
  • Est. Priority Date: 06/10/2010
  • Status: Active Grant
First Claim
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1. A computer-implemented method for calculating fuel consumption in an engine connected to an engine controller unit and using a type of fuel, the method comprising the computer-implemented steps of:

  • obtaining data relating to the engine from the engine controller unit;

    inferring the fuel type from the data;

    selecting an algorithm based on the fuel type, from a plurality of algorithms; and

    calculating the fuel consumption using the selected algorithm;

    wherein the data does not directly specify the fuel type;

    wherein the fuel type is inferred from data comprising one or more of;

    dwell time, injection pressure, absolute load value, short term trim and long term trim; and

    wherein the fuel type is inferred using fuzzy logic.

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