Patents by Inventor Benoit Derouane

Benoit Derouane 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).

  • Patent number: 6437526
    Abstract: A system for reducing torque ripple in an electric motor, comprising an electric motor having a stator and a rotor, a first set of N Hall sensors, a second set of N Hall sensors, a controller, and wherein said N Hall sensors in each said set of Hall sensors is spaced 360/N electrical degrees apart and said first and second sets of Hall sensors are spaced T electrical degrees apart, and wherein said controller is adapted to provide increased current during an overlap period detected by said Hall sensors.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: August 20, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Benoit Derouane, Sunil Keshava Murthy, Tomy Sebastian, Buyun Liu