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Diagnostics for identifying a malfunctioning component in an air compressor system onboard a locomotive

  • US 7,509,233 B2
  • Filed: 02/09/2005
  • Issued: 03/24/2009
  • Est. Priority Date: 02/09/2004
  • Status: Active Grant
First Claim
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1. A method for identifying one or more malfunctions from a plurality of malfunctions that can occur in a locomotive air compressing system comprising a plurality of components, with at least some of said plurality of malfunctions being correctable onboard a locomotive, said at least some malfunctions constituting onboard serviceable malfunctions, while a remaining of said plurality of malfunctions are correctable with the air compressing system being uninstalled and serviced at an off-board servicing site, said remaining malfunctions constituting off-board serviceable malfunctions, said method comprising:

  • performing a test sequence configured to isolate components of the air compressing system from one another to identify a component subject to a malfunction;

    applying a pressurizing stimuli to the isolated components;

    monitoring a response indicative of a malfunction type, the malfunction type being associated with one of the following;

    a corrective action to be performed onboard the locomotive, and a corrective action to be performed off-board the locomotive; and

    performing the corrective action appropriate for the malfunction type.

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