Patents by Inventor Milan S. Mijalkovic

Milan S. Mijalkovic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotor resistance adaptation for indirect field oriented control of induction machine
    Patent number: 6870348
    Abstract: An induction machine includes a rotor having rotor flux and a rotor resistance. The induction machine outputs first and second reference current values. A control system includes a first controller that outputs first and second reference voltage values to the induction machine and that generates an estimated rotor flux magnitude value based on a rotor resistance parameter. A computation circuit receives the first and second reference current values from the induction machine and the first and second voltage reference values from the first controller and calculates an actual rotor flux magnitude. A rotor resistance adjustor that updates the rotor resistance parameter based on the actual and estimated rotor flux magnitudes.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: March 22, 2005
    Assignee: General Motors Corporation
    Inventors: Milan S. Mijalkovic, Aleksandar M. Stankovic, Silva Hiti, James M. Nagashima