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“Self-collaboration” system: a new concept of on-board fault detection and isolation system for heavy haul wagons
conference contribution
posted on 2018-06-07, 00:00 authored by C Li, S Luo, Colin ColeColin Cole, Maksym SpiryaginMaksym SpiryaginThis paper proposes a new concept of an on-board Fault Detection and
Isolation (FDI) system with the name of “Self-collaboration” system for heavy haul wagons. In
this system, two accelerometers are mounted on each carbody in a heavy haul train. A signalbased
FDI method is applied for detecting faults in the suspension system of each wagon.
Three Fault Indicators (FIs) are proposed and applied for identifying the occurring vehicle
suspension faults. Instead of a time consuming pre-built database, an on-line fault diagnose
strategy is proposed. As wagons in a heavy haul train are almost identical, the system can work
by comparing wagon pairs, or another wagon in the near vicinity. The “communications” of
FIs from one wagon to another in a heavy haul train are conducted for making on-line fault
diagnoses. Wedge damper faults are selected in this paper to demonstrate this approach.