Integrating Lead Innovative Technologies

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Integrating Lead Innovative Technologies

• Impact Technologies Physics-Based Prognostics
  with DSI Internationals Systems Diagnostics
• DSI developed a detailed model of the fuel
  control assembly for an airplane
• Detailed Diagnostics tests for fault isolation
  were developed
• Prognostics were added for the fuel transfer pump
• Prognostics uses DP, fuel flow rate and Cmd
  inputs to assess pump degradation

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Fuel Control Assembly Model
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Pump Prognostics Explained
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Prognostics Added Value

• Isolation in just one test
• Set of anticipated diagnostics tests to fail
• Can provide an anticipated time to failure with
  confidence bounds based on future operating
  profile
• May be used to change diagnostics tests order to
  isolate faults more efficiently i.e. with fewer
  tests
• May provide updates to reliability curves
  (updated MTBF) for simulations