×

Method and apparatus to monitor a temperature sensing device

  • US 7,555,411 B2
  • Filed: 01/31/2007
  • Issued: 06/30/2009
  • Est. Priority Date: 01/31/2007
  • Status: Active Grant
First Claim
Patent Images

1. Method for monitoring temperatures of an electrical machine and a machine control circuit, comprising:

  • monitoring sensor readings output from a plurality of temperature sensors operative to monitor the electrical machine and the machine control circuit;

    determining an average sensor reading calculated from the sensor readings output from a subset consisting of less than all of the temperature sensors;

    identifying a fault in one of the temperature sensors when the corresponding sensor reading deviates from the average sensor reading by an amount greater than a threshold.

View all claims
  • 12 Assignments
Timeline View
Assignment View
    ×
    ×