Vehicle failure analysis system, vehicle failure analysis apparatus, and vehicle failure analysis method

• US 8,116,934 B2
• Filed: 05/18/2009
• Issued: 02/14/2012
• Est. Priority Date: 05/20/2008
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ishikawa, Tomoyasu
• Primary Examiner(s): TO, TOAN C
• Application Number:
  US12/467,476
• Publication Number:
  US 20090292417A1
• Time in Patent Office: 1,002 Days
• Field of Search: 701/33, 701/34, 701/36, 701/39, 701/43
• US Class Current: 701/34
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C

Abstract

A vehicle failure analysis system for a vehicle equipped with a plurality of control systems, each of which includes one or more components, includes: a faulty system identification unit that identifies a faulty control system from among the plurality of control systems; and a faulty component identification unit that identifies a faulty component from among the one or more components which are constituents of the identified control system.

Claims

1. A vehicle failure analysis system for a vehicle equipped with a plurality of control systems, each of which includes one or more components, the vehicle failure analysis system comprising:

a faulty system identification unit that identifies a faulty control system from among the plurality of control systems; and

a faulty component identification unit that identifies a faulty component from among the one or more components which are constituents of the identified control system.

2. The vehicle failure analysis system according to claim 1, further comprising:

an acquisition unit that acquires pieces of control information from the plurality of control systems, wherein

the faulty system identification unit identifies the faulty control system from among the plurality of control systems by comparing a first correlation between the pieces of control information and the control systems with the pieces of control information acquired by the acquisition unit.

3. The vehicle failure analysis system according to claim 2, wherein

the faulty system identification unit determines the first correlation on the basis of a relationship between the control information acquired by the acquisition unit and an actual failure.

4. The vehicle failure analysis system according to claim 2, further comprising:

a collecting unit that collects the control information from the acquisition unit, wherein

the faulty component identification unit identifies the faulty component from among the one or more components by comparing a second correlation between the one or more components and the pieces of control information partitioned in units of the control systems with the control information collected by the collecting unit.

5. The vehicle failure analysis system according to claim 4, wherein

the faulty component identification unit determines the second correlation on the basis of a relationship between the control information collected by the collecting unit and an actual failure.

6. The vehicle failure analysis system according to claim 4, wherein

the faulty system identification unit is provided for the vehicle, and the faulty component identification unit is provided at a location other than the vehicle.

7. The vehicle failure analysis system according to claim 4, wherein

the faulty system identification unit and the faulty component identification unit are provided for the vehicle.

14. The vehicle failure analysis system according to claim 1, wherein the plurality of control systems are control units that respectively control different vehicle devices.

15. The vehicle failure analysis system according to claim 14, wherein the plurality of control systems comprise a engine control unit and a brake control unit.

8. A vehicle failure analysis apparatus for a vehicle equipped with a plurality of control systems, each of which includes one or more components, the vehicle failure analysis apparatus comprising:

a faulty system identification unit that identifies a faulty control system from among the plurality of control systems; and

a faulty component identification unit that identifies a faulty component from among the one or more components which are constituents of the identified control system.

9. The vehicle failure analysis apparatus according to claim 8, further comprising:

an acquisition unit that acquires pieces of control information from the plurality of control systems, wherein

the faulty system identification unit identifies the faulty control system from among the plurality of control systems by comparing a first correlation between the pieces of control information and the control systems with the pieces of control information acquired by the acquisition unit.

10. The vehicle failure analysis apparatus according to claim 9, further comprising:

a collecting unit that collects the control information from the acquisition unit, wherein

the faulty component identification unit identifies a faulty component from among the one or more components by comparing a second correlation between the one or more components and the pieces of control information partitioned in units of the control systems with the control information collected by the collecting unit.

16. The vehicle failure analysis apparatus according to claim 8, wherein the plurality of control systems are control units that respectively control different vehicle devices.

17. The vehicle failure analysis system according to claim 16, wherein the plurality of control systems comprise a engine control unit and a brake control unit.

11. A vehicle failure analysis method for a vehicle equipped with a plurality of control systems, each of which includes one or more components, the vehicle failure analysis method comprising:

identifying a faulty control system from among the plurality of control systems; and

identifying a faulty component from among the one or more components which are constituents of the identified control system.

12. The vehicle failure analysis method according to claim 11, further comprising:

acquiring pieces of control information from the plurality of control systems, wherein

the faulty control system is identified from among the plurality of control systems by comparing a first correlation between the pieces of control information and the control systems with the acquired pieces of control information.

13. The vehicle failure analysis method according to claim 12, further comprising:

collecting the control information acquired from the plurality of control systems, wherein

the faulty component is identified from among the one or more components by comparing a second correlation between the one or more components and the pieces of control information partitioned in units of the control systems with the collected control information.

18. The vehicle failure analysis method according to claim 11, wherein the plurality of control systems are control units that respectively control different vehicle devices.

19. The vehicle failure analysis method according to claim 18, wherein the plurality of control systems comprise a engine control unit and a brake control unit.