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PREDICTION STRATEGY FOR THERMAL MANAGEMENT AND PROTECTION OF POWER ELECTRONIC HARDWARE

  • US 20090115491A1
  • Filed: 10/22/2008
  • Published: 05/07/2009
  • Est. Priority Date: 11/01/2007
  • Status: Active Grant
First Claim
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1. A method for managing thermal energy in a power electronics device for a hybrid powertrain system comprising an engine and an electric machine, the power electronics device including a plurality of electric circuit layers and a cooling system, the method comprising:

  • monitoring a plurality of temperature sensors in the power electronics device;

    monitoring electric power into and out of the power electronics device;

    predicting temperatures for the plurality of electric circuit layers; and

    controlling the hybrid powertrain system based upon the predicted temperatures for the plurality of electric circuit layers.

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