Honeywell International Inc.

Jeff Van Der Zweep

David Michael Kolbet

Timothy J Felke

Tim Felke

John F Stone

Randy R Magnuson

Douglas L Bishop

Raghupathy Kolandavelu

Michael W Stinson

A method of automatically generating a fault model from a network diagram comprising parsing a network diagram to identify schematic components and schematic interfaces, mapping each schematic component to a respective standard component, and mapping each schematic interface to a respective standard interface, generating component failure information for each schematic component based on the respective standard component, wherein component failure information includes standard failure modes of the respective standard component, generating interface failure information for each schematic interface based on the respective standard interface, wherein interface failure information includes standard failure modes of the respective standard interface, and constructing a fault model specific to the network diagram based on component failure information and interface failure information.

Automated construction of diagnostic fault model from network diagram

Methods and reconfigurable systems are provided for monitoring the health of a complex system. The system may include, but is not limited to a computing node including a memory and a processor. The processor can be configured to receive a plurality of standardized executable application modules, each standardized executable application module containing instructions to perform one of a plurality of different standardized functions, receive a binary file comprising instructions, which when loaded into memory by the processor, configure the standardized executable application modules and configure the memory by creating at least one data structure in the memory used by at least one of the plurality of standardized executable application modules.

Systems and methods to configure condition based health maintenance systems

A relational database is for relating maintenance information that differs for each of a plurality of complex systems, such as a plurality of differing aircraft, using a common database structure so as to facilitate maintenance procedures for the plurality of complex systems. The database structure comprises: a plurality of primary entities for providing a fault model description of each of the plurality of complex systems, the fault model description including, for each of the plurality of complex systems, failure modes, symptoms and data required to effect a repair; and a categorical entity corresponding to a complex system, such as an aircraft, that enables selection of the fault model description corresponding to the complex system or aircraft. The relational database is particularly suited for use in or by an aircraft maintenance and diagnostic system that assists with fault correction for a fault condition within an aircraft based on a fault model for the aircraft.

Relational database for maintenance information for complex systems

A method for improving fault isolation for failure modes in complex systems, and a software program embodying the method or a corresponding method together with a computer based aircraft diagnostic system using such software is described. The method includes: capturing a set of symptoms that is consistent with a failure mode of the complex system; identifying a set of repairs for the complex system that are consistent with the set of symptoms; ranking, when the set of repairs includes more than one repair, the repairs in a sequence that will minimize an average cost to repair the complex system, the sequence including a historical component and reflecting the effectiveness of available test results to resolve each the repairs; determining possible tests that are consistent with the failure mode; and ranking the possible tests according to there respective net improvement in the average cost to repair the complex system.

Method and apparatus for improving fault isolation

A method for improving fault classifications for failure modes in complex systems, and a software program embodying the method or a corresponding method together with a computer based aircraft diagnostic system using such software is described. The method includes: capturing an observation that is consistent with a discrepancy of the complex system; identifying a set of failure modes of the complex system that are consistent with the observation; ranking, when the set includes more than one failure mode, the failure modes according to a degree of support the observation provides for each failure mode, the degree of support including a historical component; determining additional possible observations that are consistent with any failure mode included in the set; and ranking the possible observations according to how rapidly they reduce a number of failure modes included in the set; then preferably selecting a further observation and repeating the above steps until only one failure mode remains.

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Peoria, AZ, United States of America

Jeff Van Der Zweep