Patents by Inventor Kenrou Mitsuda

Kenrou Mitsuda 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).

  • Regenerating braking system including synchronous motor with field excitation and control method thereof
    Patent number: 8143824
    Abstract: A regenerating braking system is provided, which includes: a synchronous motor with field coil excitation including a cylindrical stator coil, an inverter electrically connected to the stator coil, a battery electrically connected to the inverter, a rotor coil provided in an internal space of the stator coil, a two-way switch electrically connected to the rotor coil, and a capacitor electrically connected to the two-way switch; and a controller, wherein when the first differential calculus of acceleration of a load on the synchronous motor becomes negative, the controller stores regenerative power regenerated in the rotor coil from the stator coil, in the capacitor through the two-way switch, and wherein the controller supplies the regenerative power stored in the capacitor to the rotor coil through the two-way switch.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: March 27, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenrou Mitsuda, Masaya Inoue, Ikurou Suga, Akihiro Daikoku
  • REGENERATING BRAKING SYSTEM INCLUDING SYNCHRONOUS MOTOR WITH FIELD EXCITATION AND CONTROL METHOD THEREOF
    Publication number: 20090302788
    Abstract: A regenerating braking system is provided, which includes: a synchronous motor with field coil excitation including a cylindrical stator coil, an inverter electrically connected to the stator coil, a battery electrically connected to the inverter, a rotor coil provided in an internal space of the stator coil, a two-way switch electrically connected to the rotor coil, and a capacitor electrically connected to the two-way switch; and a controller, wherein when the first differential calculus of acceleration of a load on the synchronous motor becomes negative, the controller stores regenerative power regenerated in the rotor coil from the stator coil, in the capacitor through the two-way switch, and wherein the controller supplies the regenerative power stored in the capacitor to the rotor coil through the two-way switch.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 10, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenrou Mitsuda, Masaya Inoue, Ikurou Suga, Akihiro Daikoku