Patents by Inventor Jesse Gerdes

Jesse Gerdes 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).

  • Switched Reluctance Generator Integrated Controls
    Publication number: 20120161723
    Abstract: A method of controlling a generator (110) of an electric drive (104) associated with an engine (102) is provided. The method may determine an operational state of the electric drive (104) based on a speed of the engine (102), and selectively engage one of a map-lookup control scheme (150) and a fixed-theta off control scheme (152) for operating the generator (110) based on the operational state of the electric drive (104).
    Type: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Applicant: CATERPILLAR, INC.
    Inventors: Jackson Wai, Thuong Le, Adam Braun, Jesse Gerdes, James Siegle, Mark Hartman
  • Switched Reluctance Generator Initial Rotor Position Estimation
    Publication number: 20120161725
    Abstract: A method of estimating rotor speed of a generator 106 having a rotor 110 and a stator 112 is provided. The method may provide a source current to the stator 112, determine a relative rotor speed based on a sensor signal provided by a rotor speed sensor 130, determine a relative rotor position corresponding to the relative rotor speed, determine an absolute rotor position based on the sensor signal and phase currents, and calibrate the sensor signal based on an offset between the relative rotor position and the absolute rotor position.
    Type: Application
    Filed: May 31, 2011
    Publication date: June 28, 2012
    Applicant: CATERPILLAR, INC.
    Inventors: Mark Hartman, Robert Lindsey, Jackson Wai, Jesse Gerdes