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AUXILIARY PUMP DIAGNOSTIC SYSTEMS AND METHODS

  • US 20100217470A1
  • Filed: 02/25/2009
  • Published: 08/26/2010
  • Est. Priority Date: 02/25/2009
  • Status: Active Grant
First Claim
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1. An auxiliary pump diagnostic system comprising:

  • a slip determination module that determines slip of a torque converter based on an engine speed and a transmission input speed; and

    a fault determination module that diagnoses a fault in an auxiliary pump based on the slip of the torque converter.

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