Patents by Inventor Byung-Chan SUN

Byung-Chan SUN 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).

  • Flight vehicle attitude control system design method and device
    Patent number: 10870501
    Abstract: A flight vehicle attitude control system design device includes: a gain calculator calculating a proportional gain and a derivative gain from a system natural frequency and a system damping coefficient; a margin calculator calculating a gain margin and a phase margin from the proportional gain and the derivative gain; a grid generator generating a gain-phase margin grid from a relationship between the proportional gain and the derivative gain and a relationship between the gain margin and the phase margin; and a display unit outputting the gain-phase margin grid on a control gain design region having a gain margin as one of a horizontal coordinate axis and a vertical coordinate axis and a phase margin as the other one of the horizontal coordinate axis and the vertical coordinate axis.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 22, 2020
    Assignee: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Yong-Kyu Park, Byung-Chan Sun
  • FLIGHT VEHICLE ATTITUDE CONTROL SYSTEM DESIGN METHOD AND DEVICE
    Publication number: 20190177010
    Abstract: A flight vehicle attitude control system design device includes: a gain calculator calculating a proportional gain and a derivative gain from a system natural frequency and a system damping coefficient; a margin calculator calculating a gain margin and a phase margin from the proportional gain and the derivative gain; a grid generator generating a gain-phase margin grid from a relationship between the proportional gain and the derivative gain and a relationship between the gain margin and the phase margin; and a display unit outputting the gain-phase margin grid on a control gain design region having a gain margin as one of a horizontal coordinate axis and a vertical coordinate axis and a phase margin as the other one of the horizontal coordinate axis and the vertical coordinate axis.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 13, 2019
    Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Yong-Kyu PARK, Byung-Chan SUN