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Fuel and method for evaluating fuel saving operation

  • US 7,274,987 B2
  • Filed: 04/25/2003
  • Issued: 09/25/2007
  • Est. Priority Date: 05/10/2002
  • Status: Active Grant
First Claim
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1. A fuel-efficient-driving evaluator comprising a vehicle-data detector for detecting vehicle data items corresponding to evaluation parameters for fuel-efficient driving;

  • a storage unit for storing the vehicle data items;

    an evaluating unit for evaluating each stored vehicle data item in view of fuel-efficient driving so as to give an evaluation score to the vehicle data item; and

    a totalizing unit for totalizing the evaluation scores in order to determine total scores,wherein the storage unit, the evaluating unit, and the totalizing unit respectively includes first to N-th storage portions, first to N-th evaluating portions, and first to N-th totalizing portions corresponding to first to N-th preliminarily-set traveling conditions,wherein the fuel-efficient-driving evaluator further comprises;

    a correction-coefficient providing unit which determines rates of fuel consumption based on the amounts of fuel consumed in the first to N-th traveling conditions and sends the rates as correction coefficients; and

    a correction totalizing unit which corrects each of the total scores determined by a corresponding one of the first to N-th totalizing portions based on the corresponding correction coefficient and determines a final score.

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