APPARATUS FOR DIAGNOSING DRIVING BEHAVIOR, METHOD FOR DIAGNOSING DRIVING BEHAVIOR, AND PROGRAM THEREOF

• US 20140350777A1
• Filed: 05/16/2014
• Published: 11/27/2014
• Est. Priority Date: 05/27/2013
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Kawai, Jun, Yano, Katsutoshi, Ando, Toshiaki
• Granted Patent: US 9,256,995 B2
• Time in Patent Office: Days
• US Class Current: 701/32.3
• CPC Class Codes: B60W 2552/20 Road profile, i.e. the change in elevation or curvature of a plurality of continuous road segments
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: B60W 50/08 Interaction between the driver and the control system
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

An apparatus for diagnosing driving behavior includes a storage unit that stores ideal running information defining a relationship between a vehicle speed and a vehicle position corresponding to a road situation, a generation unit that generates actual running information expressing a relationship between an actual vehicle speed and an actual position when a vehicle passes through a road, a condition identification unit that identifies a matching condition where the degree of correlation of the actual running information with the ideal running information exceeds a predetermined value, and a diagnosis unit that diagnoses a driving behavior of a driver of the vehicle, based on a degree of similarity between the ideal running information and the actual running information under the matching condition identified in the condition identification unit.

Claims

1. An apparatus for diagnosing driving behavior comprising:

a storage unit that stores ideal running information defining a relationship between a vehicle speed and a vehicle position corresponding to a road situation;

a generation unit that generates actual running information expressing a relationship between an actual vehicle speed and an actual position when a vehicle passes through a road;

a condition identification unit that identifies a matching condition where the degree of correlation of the actual running information with the ideal running information exceeds a predetermined value; and

a diagnosis unit that diagnoses a driving behavior of a driver of the vehicle, based on a degree of similarity between the ideal running information and the actual running information under the matching condition identified in the condition identification unit.

2. The apparatus for diagnosing driving behavior according to claim 1, wherein

the condition identification unit identifies, as the matching condition, the condition where the correlation with the ideal running information becomes highest when the actual position included in the actual running information is changed.

3. The apparatus for diagnosing driving behavior according to claim 1, further comprising:

a stop position identification unit that identifies a temporary stop position of the vehicle by comparing the ideal running information and the actual running information with each other under the matching condition identified in the condition identification unit, wherein

the diagnosis unit diagnoses the driving behavior, based on the degree of similarity at the temporary stop position identified in the stop position identification unit.

4. The apparatus for diagnosing driving behavior according to claim 3, further comprising:

a second storage unit that stores a diagnosis result based on the diagnosis unit with respect to each of kinds of the temporary stop position; and

a tendency diagnosis unit that diagnoses a tendency of the driving behavior with respect to the each of kinds, based on a relationship between the diagnosis result stored in the second storage unit and corresponding the each of kinds.

5. The apparatus for diagnosing driving behavior according to claim 3, further comprising:

a third storage unit that stores the diagnosis result in the diagnosis unit with associating the diagnosis result with the road relating to the diagnosis result; and

a second tendency diagnosis unit that diagnoses a tendency of the driving behavior in the road, based on a relationship between the diagnosis result stored in the third storage unit and the road.

6. The apparatus for diagnosing driving behavior according to claim 1, further comprising:

a second condition identification unit that corrects the matching condition, based on a position of a pavement marking or a fixed structure relative to the vehicle.

7. The apparatus for diagnosing driving behavior according to claim 1, further comprising:

an intersection identification unit that identifies an intersection through which the vehicle has passed among a plurality of intersections, wherein

the storage unit stores the ideal running information with respect to each intersection, and

the generation unit generates the actual running information at the intersection identified in the intersection identification unit.

8. The apparatus for diagnosing driving behavior according to claim 7, wherein

the storage unit stores the ideal running information with respect to each of a plurality of intersection patterns classified in accordance with visibility of a visual recognition target.

9. The apparatus for diagnosing driving behavior according to claim 1, wherein

the diagnosis unit diagnoses the driving behavior of the driver of the vehicle, based on a correlation or the degree of similarity between a graph of the ideal running information and a graph of the actual running information.

10. A method for diagnosing driving behavior on the basis of ideal running information defining a relationship between a vehicle speed and a vehicle position of a vehicle corresponding to a situation of a road, when the vehicle passes through an intersection, the method comprising:

generating actual running information expressing a relationship between an actual vehicle speed and an actual position when the vehicle passes through the road;

identifying a matching condition, using a computer, where a correlation with the ideal running information becomes highest when the actual position included in the actual running information is changed;

identifying a temporary stop position of the vehicle by comparing the ideal running information and the actual running information with each other under the matching condition; and

diagnosing the driving behavior at the identified temporary stop position on the basis of a degree of similarity between the ideal running information and the actual running information under the matching condition.

11. The method for diagnosing driving behavior according to claim 10, further comprising:

storing diagnosis result corresponding to the driving behavior diagnosed by the diagnosing with respect to corresponding a kind of the temporary stop position;

diagnosing a tendency of the driving behavior with respect to each the kind on the basis of a relationship between the diagnosis result stored and the kind;

storing the diagnosis result with associating a road relating to the diagnosing; and

diagnosing a tendency of the driving behavior in the road on the basis of a relationship between the diagnosis result stored and the road.

12. The method for diagnosing driving behavior according to claim 10, further comprising:

correcting the matching condition on the basis of a position of a pavement marking or a fixed structure relative to the vehicle.

13. The method for diagnosing driving behavior according to a claim 10, further comprising:

defining the ideal running information relating to an intersections;

identifying a specific intersection among a plurality of intersections, the vehicle having passed the specific intersection; and

generating actual running information at the specific intersection.

14. The method for diagnosing driving behavior according to claim 13, wherein

each of a plurality of intersection patterns classified in accordance with visibility of a visual recognition target is stored in the ideal running information.

15. A computer-readable recording medium having stored a control program for causing an apparatus for diagnosing driving behavior on the basis of ideal running information defining a relationship between a vehicle speed and a vehicle position corresponding to a road situation, the driving behavior being when the vehicle passes through an intersection, the control program causing the apparatus to execute processing, the processing comprising:

generating actual running information expressing a relationship between an actual vehicle speed and an actual position when the vehicle passes through a road;

identifying a matching condition where the degree of correlation of the actual running information with the ideal running information exceeds a predetermined value; and

diagnosing the driving behavior, based on the degree of similarity between the ideal running information and the actual running information under the matching condition.

16. The computer-readable recording medium according to claim 15, the control program further causing the apparatus to execute processing, the processing comprising:

storing diagnosis result corresponding to the driving behavior diagnosed by the diagnosing with respect to corresponding a kind of the temporary stop position;

diagnosing a tendency of the driving behavior with respect to each the kind on the basis of a relationship between the diagnosis result stored and the kind;

storing the diagnosis result with associating a road relating to the diagnosing; and

diagnosing a tendency of the driving behavior in the road on the basis of a relationship between the diagnosis result stored and the road.

17. The computer-readable recording medium according to claim 15, the control program further causing the apparatus to execute processing, the processing comprising:

correcting the matching condition on the based on a position of a pavement marking or a fixed structure relative to the vehicle.

18. The computer-readable recording medium according to claim 15, the control program further causing the apparatus to execute processing, the processing comprising:

defining the ideal running information relating to an intersections;

identifying a specific intersection among a plurality of intersections, the vehicle having passed the specific intersection; and

generating actual running information at the specific intersection.

19. The computer-readable recording medium according to claim 18, the control program further causing the apparatus to execute processing, the processing comprising:

each of a plurality of intersection patterns classified in accordance with visibility of a visual recognition target is stored in the ideal running information.