Patents by Inventor Charles OBRY

Charles OBRY 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).

  • Modulated active short circuit braking
    Patent number: 11760210
    Abstract: Methods and systems are provided for modulating undesired electric-motor braking. Based upon the detection of an inverter degradation event, one of a first gate driver and a second gate driver (e.g., a high gate driver and a low gate driver, such as for one phase of an inverter) may be asserted in an alternating manner while the other of the first gate driver and a second gate driver is de-asserted, and the first gate driver and second gate driver may then be provided to a power switch circuitry. The alternating assertion of the one of the first gate driver and the second gate driver may be associated with a higher-speed state, and the de-assertion of both the first gate driver and the second gate driver may be associated with a lower-speed state.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: September 19, 2023
    Assignee: DANA TM4 INC.
    Inventors: Charles Obry, Maalainine El Yacoubi
  • MODULATED ACTIVE SHORT CIRCUIT BRAKING
    Publication number: 20220289042
    Abstract: Methods and systems are provided for modulating undesired electric-motor braking. Based upon the detection of an inverter degradation event, one of a first gate driver and a second gate driver (e.g., a high gate driver and a low gate driver, such as for one phase of an inverter) may be asserted in an alternating manner while the other of the first gate driver and a second gate driver is de-asserted, and the first gate driver and second gate driver may then be provided to a power switch circuitry. The alternating assertion of the one of the first gate driver and the second gate driver may be associated with a higher-speed state, and the de-assertion of both the first gate driver and the second gate driver may be associated with a lower-speed state.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 15, 2022
    Inventors: Charles OBRY, Maalainine EL YACOUBI
  • Multiple phase electric machine, drive and control
    Patent number: 10693408
    Abstract: A multiple-phase electric machine provided with multiple inverter power circuits is described herein. The present multiple-phase electric machine aim at performing configuration changes while reducing the loss of torque when machines are switched between configurations. This is done by forming groups of phases defining machine portions that are powered by a separate inverter power circuit and by switching the machine portions separately with controlled switching devices.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: June 23, 2020
    Assignee: DANA TM4 INC.
    Inventors: Charles Obry, Benoit Blanchart St-Jacques
  • Multiple Phase Electric Machine, Drive and Control
    Publication number: 20170229993
    Abstract: A multiple-phase electric machine provided with multiple inverter power circuits is described herein. The present multiple-phase electric machine aim at performing configuration changes while reducing the loss of torque when machines are switched between configurations. This is done by forming groups of phases defining machine portions that are powered by a separate inverter power circuit and by switching the machine portions separately with controlled switching devices.
    Type: Application
    Filed: July 27, 2015
    Publication date: August 10, 2017
    Inventors: Charles OBRY, Benoit BLANCHART ST-JACQUES