Apparatus for diagnosing driving behavior, method for diagnosing driving behavior, and program thereof

Patent metadata

Field	Value
Publication number	US-9256995-B2
Application number	US-201414279939-A
Country	US
Kind code	B2
Filing date	May 16, 2014
Priority date	May 27, 2013
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

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.

First claim

What is claimed is:

1. An apparatus for diagnosing driving behavior comprising:
a processor; and
a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute:
storing ideal running information in a first storage defining a relationship between a vehicle speed and a vehicle position corresponding to a road situation;
generating actual running information expressing a relationship between an actual vehicle speed and an actual position when a 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;
diagnosing 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 identified matching condition; and
identifying a temporary stop position of the vehicle by comparing the ideal running information and the actual running information with each other under the identified matching condition, wherein
the diagnosing diagnoses the driving behavior, based on the degree of similarity at the identified temporary stop position.

2. The apparatus for diagnosing driving behavior according to claim 1 , wherein
the identifying 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 , wherein the processor further executes:
storing a diagnosis result in a second storage based on the diagnosing with respect to each of kinds of the temporary stop position; and
diagnosing a tendency of the driving behavior with respect to the each of kinds, based on a relationship between the stored diagnosis result stored in the second storage and corresponding the each of kinds.

4. The apparatus for diagnosing driving behavior according to claim 1 , wherein the processor further executes:
storing in a third storage the diagnosis result in the diagnosing with associating the diagnosis result with the road relating to the diagnosis result; and
diagnosing a tendency of the driving behavior in the road, based on a relationship between the stored diagnosis result stored in the third storage and the road.

5. The apparatus for diagnosing driving behavior according to claim 1 , wherein the processor further executes:
correcting the matching condition, based on a position of a pavement marking or a fixed structure relative to the vehicle.

6. The apparatus for diagnosing driving behavior according to claim 1 , wherein the processor further executes:
identifying an intersection through which the vehicle has passed among a plurality of intersections, wherein
the storing stores the ideal running information with respect to each intersection, and
the generating generates the actual running information at the identified intersection.

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

8. The apparatus for diagnosing driving behavior according to claim 6 , wherein
the storing 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. 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.

10. The method for diagnosing driving behavior according to claim 9 , 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.

11. The method for diagnosing driving behavior according to claim 9 , further comprising:
correcting the matching condition on the basis of a position of a pavement marking or a fixed structure relative to the vehicle.

12. The method for diagnosing driving behavior according to a claim 9 , 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.

13. The method for diagnosing driving behavior according to claim 12 , 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.

14. A non-transitory 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;
diagnosing the driving behavior, based on the degree of similarity between the ideal running information and the actual running information under the matching condition;
storing a diagnosis result corresponding to the driving behavior diagnosed by the diagnosing with respect to a corresponding type of temporary stop position;
diagnosing a tendency of the driving behavior with respect to each type of temporary stop position based on a relationship between the stored diagnosis result and the corresponding type of temporary stop position;
storing the diagnosis result with a road relating to the diagnosing; and
diagnosing a tendency of the driving behavior on the road based on a relationship between the stored diagnosis result an

Assignees

• Fujitsu Ltd

Inventors

• Kawai Jun
• Ando Toshiaki
• Yano Katsutoshi

Classifications

• B60W50/08

  Interaction between the driver and the control system · CPC title

• B60W2556/50

  of positioning data, e.g. GPS [Global Positioning System] data · CPC title

• G07C5/0808 Primary

  Diagnosing performance data (testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005) · CPC title

• G07C5/085

  using electronic data carriers · CPC title

• B60W40/09

  Driving style or behaviour · CPC title