US 12,134,484 B2
System and method for contextually-informed fault diagnostics using structural-temporal analysis of fault propagation graphs
Jason M. Keller, Des Peres, MO (US); Lee Wang, Okemos, MI (US); and James M. Ethington, Saint Charles, MO (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Mar. 31, 2022, as Appl. No. 17/710,319.
Claims priority of provisional application 63/195,979, filed on Jun. 2, 2021.
Prior Publication US 2022/0388689 A1, Dec. 8, 2022
Int. Cl. B64F 5/60 (2017.01); B64D 45/00 (2006.01); G06F 11/07 (2006.01)
CPC B64F 5/60 (2017.01) [B64D 45/00 (2013.01); G06F 11/0739 (2013.01); G06F 11/079 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of diagnosing a failure on an aircraft that includes aircraft systems and monitors configured to report effects of failure modes of the aircraft systems, the method comprising:
receiving a fault report that indicates one or more of the monitors that reported the effects of a failure mode in an aircraft system of the aircraft systems;
accessing a fault pattern library that describes relationships between possible failure modes and patterns of those of the monitors configured to report the effects of the possible failure modes;
diagnosing the failure mode of the aircraft system from the one or more of the monitors that reported, and using the fault pattern library and a greedy selection algorithm;
determining a maintenance action for the failure mode;
generating a maintenance message including at least the maintenance action; and
displaying the maintenance message including at least the maintenance action on a display utilizing an onboard computer or the aircraft.