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Thermal protection method and system to maximize availability of electric drive system

  • US 8,933,658 B2
  • Filed: 01/08/2013
  • Issued: 01/13/2015
  • Est. Priority Date: 01/08/2013
  • Status: Active Grant
First Claim
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1. An electric drive system comprising:

  • a plurality of heat sensitive components;

    a plurality of temperature sensors in temperature communication with heat sensitive components;

    a system controller having a processor in bilateral communication with a reference unit;

    wherein the system controller continually receives temperature signals from the temperature sensors;

    wherein, if one of the temperature signals presents a temperature above a respective threshold temperature for a particular heat sensitive component, then;

    the system controller receives a threshold exceed signal;

    the processor interacts with the reference unit to determine a type and magnitude of performance reduction to reconcile the threshold exceed signal; and

    the processor causes the system controller to produce a reduced performance command for performance reduction of the drive system.

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