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MODULAR TEMPERATURE PERFORMANCE DIAGNOSTIC FOR A VEHICLE

  • US 20110288723A1
  • Filed: 05/24/2010
  • Published: 11/24/2011
  • Est. Priority Date: 05/24/2010
  • Status: Active Grant
First Claim
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1. A vehicle comprising:

  • a power inverter module (PIM) having multiple phase outputs;

    a motor/generator unit (MGU) electrically connected to the PIM, and having a motor winding;

    a pair of vehicle components;

    a first plurality of temperature sensors, wherein one of the first plurality of temperature sensors measures a temperature of the motor winding, and wherein each of the remaining sensors of the first plurality of temperature sensors measures a temperature of a corresponding one of the multiple phase outputs of the PIM;

    a second plurality of temperature sensors that measure a temperature of a corresponding one of the pair of vehicle components; and

    a controller having a temperature performance diagnostic algorithm, wherein the algorithm calculates an average temperature of the pair of vehicle components, and individually diagnoses the performance of each of the first plurality of temperature sensors using the average temperature.

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