Methods and apparatus for assisting in the maintenance of aircraft and other mobile platforms using occurrence probabilities of potential causes of a detected event

• US 10,395,439 B2
• Filed: 06/23/2015
• Issued: 08/27/2019
• Est. Priority Date: 06/26/2014
• Status: Active Grant

• Current Assignee: Bombardier Incorporated
• Original Assignee: Bombardier Incorporated
• Inventors: Blackman, Michael
• Primary Examiner(s): Dager, Jonathan M
• Assistant Examiner(s): Evans, Garrett F
• Application Number:
  US15/319,123
• Publication Number:
  US 20170132851A1
• Time in Patent Office: 1,526 Days
• Field of Search: None
• CPC Class Codes: G05B 23/0245 based on a qualitative model, e.g. rule based; if-then decisions
• CPC Class Codes: G05B 23/0275 Fault isolation and identification, e.g. classify fault; estimate cause or root of failure
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005

Abstract

The present disclosure relates to health monitoring and maintenance of mobile platforms such as aircraft. In particular, onboard apparatus and methods and also ground-based apparatus and methods that cooperate in assisting with the maintenance of mobile platforms by facilitating diagnosis of events detected onboard mobile platforms while such mobile platforms are in operation (e.g., transit, flight) are disclosed. In various aspects, the present disclosure discloses apparatus and methods for handling and reporting the detection of events onboard mobile platforms, reporting predefined additional information associated with the event upon request from a ground facility, identifying one or more potential causes for the detected event and determining the occurrence probability for each potential cause identified.

Claims

1. A computer-implemented method for assisting in the maintenance of a mobile platform by determining occurrence probabilities of one or more potential causes of an event detected onboard the mobile platform, the method performed by a ground-based apparatus remote from the mobile platform, the method comprising:

receiving, at the ground-based apparatus and from the mobile platform, an identification of the event associated with a system of the mobile platform;

using the identification of the event and predefined diagnostic rules associated with the event, identifying the one or more potential causes of the event;

using other data related to the event, computing an occurrence probability for each potential cause for the event; and

generating an output, the output comprising an identification of each potential cause and the occurrence probability of each potential cause.

2. The method as defined in claim 1, wherein the other data comprises current data received from the mobile platform, the current data including a sensed parameter or a derived parameter associated with the system.

3. The method as defined in claim 1, wherein generating the output occurs while the mobile platform is in flight.

4. The method as defined in claim 1, wherein the other data comprises historical data.

5. The method as defined in claim 4, wherein the historical data relates to a previous occurrence of the same event on the same mobile platform.

6. The method as defined in claim 4, wherein the historical data relates to a previous occurrence of another event on the same mobile platform.

7. The method as defined in claim 1, wherein the other data comprises fleet data.

8. The method as defined in claim 7, wherein the fleet data relates to a previous occurrence of the same event on another mobile platform.

9. The method as defined in claim 7, wherein the fleet data relates to a previous occurrence of another event on another mobile platform.

10. The method as defined in claim 1, wherein the other data comprises environmental data.

11. The method as defined in claim 10, wherein the environmental data comprises any one of weather data, flight environment data and mobile platform performance data.

12. The method as defined in claim 1, wherein generating the output comprises displaying an identification of each cause with a corresponding indication of its associated probability on a graphical user interface.

13. The method as defined in claim 1, wherein the occurrence probability includes a percentage.

14. The method as defined in claim 1, wherein the occurrence probability includes an indication of relative likelihood of occurrence of each potential cause.

15. The method as defined in claim 1, wherein the output comprises an indication of one or more types of other data used to compute the occurrence probability of each potential cause.

16. A ground-based apparatus for assisting with maintenance of a mobile platform, the apparatus being remote from the mobile platform and comprising:

a communication terminal for receiving data from the mobile platform;

a display device;

a data processor coupled to the communication terminal and to the display device; and

a non-transitory computer-readable medium containing instructions readable and executable by the data processor to perform a method comprising;

using data including identification of the event received from the mobile platform and predefined diagnostic rules stored in the computer-readable medium, identifying one or more potential causes of the event;

using other data related to the event, computing an occurrence probability for each potential cause for the event; and

generating an output for the display device, the output comprising an identification of each potential cause and the occurrence probability of each potential cause.

17. The apparatus as defined in claim 16, wherein the other data comprises current data from the mobile platform, the current data including a sensed parameter or a derived parameter associated with the system.

18. The apparatus as defined in claim 16, wherein the other data comprises historical data.

19. The apparatus as defined in claim 18, wherein the historical data relates to a previous occurrence of the same event on the same mobile platform.

20. The apparatus as defined in claim 18, wherein the historical data relates to a previous occurrence of another event on the same mobile platform.

21. The apparatus as defined in claim 16, wherein the other data comprises fleet data.

22. The apparatus as defined in claim 21, wherein the fleet data relates to a previous occurrence of the same event on another mobile platform.

23. The apparatus as defined in claim 21, wherein the fleet data relates to a previous occurrence of another event on another mobile platform.

24. The apparatus as defined in claim 16, wherein the other data comprises environmental data.

25. The apparatus as defined in claim 24, wherein the environmental data comprises any one of weather data, flight environment data and mobile platform performance data.

26. The apparatus as defined in claim 16, wherein generating the output comprises causing the display device to display an identification of each cause with a corresponding indication of its associated probability.

27. The apparatus as defined in claim 16, wherein the occurrence probability includes a percentage.

28. The apparatus as defined in claim 16, wherein the occurrence probability includes a relative indication of likelihood of each potential cause.

29. The apparatus as defined in claim 16, wherein the output comprises an indication of one or more types of other data used to compute the probability of occurrence of each potential cause.

30. A computer program product for assisting with maintenance of a mobile platform with a ground-based apparatus remote from the mobile platform, the computer program product comprising a non-transitory computer readable storage medium having program code embodied therewith, the program code readable/executable by a computer, processor or logic circuit to perform a method comprising:

using data including an identification of the event received at the ground-based apparatus from the mobile platform and predefined diagnostic rules stored in the computer-readable medium, identifying one or more potential causes of the event;

using other data related to the event and the predefined diagnostic rules, computing an occurrence probability for each potential cause for the event; and

generating an output for a display device, the output comprising an identification of each potential cause and the occurrence probability of each potential cause.

31. The computer program product as defined in claim 30, wherein the other data comprises one or more of current data, historical data, environmental data and fleet data.

32. The computer program product as defined in claim 31, wherein the output comprises an indication of one or more types of other data used to compute the probability of occurrence of each potential cause.