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METHOD FOR DETERMINING A COIL TEMPERATURE OF AN ELECTRIC MACHINE

  • US 20160131534A1
  • Filed: 11/04/2015
  • Published: 05/12/2016
  • Est. Priority Date: 11/06/2014
  • Status: Active Grant
First Claim
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1. A method for determining an actual temperature of a coil of an electric machine, comprising:

  • detecting a voltage in a no-load state of the electric machine;

    detecting a current strength in an induced short circuit state of the electric machine;

    calculating an actual stator coil resistance as a function of the voltage detected during the no-load state and the current strength detected during the active short circuit”

    state; and

    calculating the actual temperature of the coil of the electric machine as a function of the actual stator coil resistance.

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