×

Combined feedforward and feedback parameter estimation for electric machines

  • US 6,900,607 B2
  • Filed: 12/11/2001
  • Issued: 05/31/2005
  • Est. Priority Date: 08/17/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for estimating a parameter of an electric machine, comprising:

  • a controller operatively connected to a switching device said switching device operatively connected between said electric machine and a power source, said switching device being coupled to said controller;

    a current sensor operatively connected to and transmitting a current value indicative of a current in said electric machine;

    a temperature sensor operatively connected to and transmitting a temperature signal corresponding to a measured temperature to said controller; and

    said controller executing a parameter estimation process responsive to at least one of;

    a temperature value responsive to said temperature signal, said current value, and a torque command indicative of a desired torque for said electric machine, wherein a resultant of said parameter estimation process represents a parameter of said electric machine.

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