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

• Current Assignee: Pioneer Corporation, Pioneer System Technologies Corp (Pioneer Corporation)
• Original Assignee: Pioneer Corporation, Pioneer System Technologies Corp (Pioneer Corporation)
• Inventors: Suzuki, Masayoshi, Shimamura, Tetsuro, Kashio, Shota, Shirakawa, Yuya
• Application Number:
  US13/394,451
• Publication Number:
  US 20120191334A1
• Time in Patent Office: Days
• US Class Current: 701/123
• CPC Class Codes: G01F 9/001 with electric, electro-mechanic or electronic means G01F9/008 and G01F9/02 take precedence
• CPC Class Codes: G07C 5/0825 using optical means

Abstract

A fuel efficiency display device includes a past average fuel efficiency (AFE) calculating unit, a present AFE calculating unit, an AFE comparison unit, and a display unit. The past AFE calculating unit calculates AFE from a start time of use of the fuel efficiency display device to a finish time of a last driving operation as a past AFE. The present AFE calculating unit calculates an AFE at constant time intervals or at constant intervals of running distance as a present AFE since a start time of a present driving operation. The AFE comparison unit makes a comparison between the present AFE and the past AFE. The display unit displays a proportion of a number of times that the present AFE is more efficient than the past AFE to a total number of the comparisons between the present AFE and the past AFE.

Claims

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.

2. The fuel efficiency display device according to claim 1,

wherein the display unit updates the display of the proportion at predetermined time intervals.

3. The fuel efficiency display device according to claim 1,

wherein the fuel efficiency display device is connected to a navigation device guiding a route of the vehicle;

wherein the present average fuel efficiency calculating unit sets the start time of the present driving operation to a start time of the route guide of the vehicle executed by the navigation device; and

wherein the display unit displays the proportion at a finish time of the route guide of the vehicle executed by the navigation.

6. The fuel efficiency display device according to claim 2,

wherein the fuel efficiency display device is connected to a navigation device guiding a route of the vehicle;

wherein the present average fuel efficiency calculating unit sets the start time of the present driving operation to a start time of the route guide of the vehicle executed by the navigation device; and

wherein the display unit displays the proportion at a finish time of the route guide of the vehicle executed by the navigation.

4. A fuel efficiency display method executed by a fuel efficiency display device which displays an evaluation of a fuel efficiency of a vehicle, comprising:

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

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

a display process 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.

5. A fuel efficiency display program stored on a non-transitory storage medium and executed by a fuel efficiency display device which displays an evaluation of a fuel efficiency of a vehicle, making the fuel efficiency display device function as:

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 intervals of a constant time or at intervals of a constant running distance as a present average fuel efficiency since a start time of driving 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.