Patents by Inventor Guilhem Lejeune

Guilhem Lejeune 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).

  • Device for control of a PMSM
    Patent number: 8648556
    Abstract: A permanent magnet synchronous machine (PMSM) includes a stator and rotor powered by an inverter. A device to control the PMSM includes a sensor to sample a measurement ?m of the position of the rotor, a control unit to control an operating point of the PMSM according to the position of the rotor and settings, and an estimation unit to determine an estimate {circumflex over (?)} of the rotor position. The device also includes a malfunction detector to detect a malfunction of the sensor and a switch to connect the control unit to the sensor so that the control unit receives the measured position ?m of the rotor while the malfunction detector does not indicate any sensor malfunction, and otherwise to connect the control unit to the estimation unit so that the control unit receives the estimated position {circumflex over (?)} of the rotor when the malfunction detector indicates a sensor malfunction.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: February 11, 2014
    Assignee: Hispano Suiza
    Inventors: Guilhem Lejeune, Sebastien Vieillard
  • DEVICE FOR CONTROL OF A PMSM
    Publication number: 20120280641
    Abstract: A permanent magnet synchronous machine (PMSM) includes a stator and rotor powered by an inverter. A device to control the PMSM includes a sensor to sample a measurement ?m of the position of the rotor, a control unit to control an operating point of the PMSM according to the position of the rotor and settings, and an estimation unit to determine an estimate {circumflex over (?)} of the rotor position. The device also includes a malfunction detector to detect a malfunction of the sensor and a switch to connect the control unit to the sensor so that the control unit receives the measured position ?m of the rotor while the malfunction detector does not indicate any sensor malfunction, and otherwise to connect the control unit to the estimation unit so that the control unit receives the estimated position {circumflex over (?)} of the rotor when the malfunction detector indicates a sensor malfunction.
    Type: Application
    Filed: December 10, 2010
    Publication date: November 8, 2012
    Applicant: HISPANO SUIZA
    Inventors: Guilhem Lejeune, Sébastien Vieillard