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FUEL EFFICIENCY DISPLAY DEVICE, FUEL EFFICIENCY DISPLAY METHOD, AND FUEL EFFICIENCY DISPLAY PROGRAM

  • US 20120191334A1
  • Filed: 09/08/2009
  • Published: 07/26/2012
  • Est. Priority Date: 09/08/2009
  • Status: Abandoned Application
First Claim
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1. A fuel efficiency display device which displays an evaluation of a fuel efficiency of a vehicle, comprising:

  • a past average fuel efficiency calculating unit which calculates, based on a driving record of the vehicle, an average fuel efficiency from a start time of use of the fuel efficiency display device to a finish time of last driving operation as a past average fuel efficiency;

    a present average fuel efficiency calculating unit which calculates an average fuel efficiency at constant time intervals or at constant intervals of running distance as a present average fuel efficiency since a start time of present driving operation;

    an average fuel efficiency comparison unit which makes a comparison between the present average fuel efficiency and the past average fuel efficiency; and

    a display unit which displays a proportion of a number of times that the present average fuel efficiency is more efficient than the past average fuel efficiency to a total number of the comparisons.

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