Patents by Inventor Stanley Fujii

Stanley Fujii 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).

  • Position-sensorless control of interior permanent magnet machines
    Publication number: 20060097702
    Abstract: A method of controlling an IPM machine having a salient rotor. Stator terminal signals are measured and rotated to obtain synchronous reference frame current signals. A rotor position is estimated based on an impedance generated using the rotor and included in the current signals. The estimated rotor position is used to control the machine. An alternator-starter system in which this method is used can provide high cranking torque and generation power over a wide speed range while providing operational efficiency.
    Type: Application
    Filed: November 9, 2004
    Publication date: May 11, 2006
    Inventors: James Nagashima, Khwaja Rahman, Nitinkumar Patel, Steven Schulz, Terence Ward, Stanley Fujii