Patents by Inventor Akiyuki Hasegawa

Akiyuki Hasegawa 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).

  • Control system, control method, and control program
    Patent number: 11491666
    Abstract: A control system according to an embodiment includes a motor configured to drive a link, a first sensor configured to detect information about the driving by the motor or information about a relation between the driving means and the load member as first sensor information, a second sensor configured to detect information about a displacement of the link as second sensor information, and a control unit configured to perform feedback control of the driving means so as to follow a command value in a two-inertial system model including an inertial system on a load side and an inertial system on a driving side. The control unit includes a disturbance observer configured to estimate a disturbance, and a filter configured to convert an estimated value of the disturbance into a driving force of the motor.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 8, 2022
    Assignees: THE UNIVERSITY OF TOKYO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Fujimoto, Akiyuki Hasegawa, Taro Takahashi
  • CONTROL SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM
    Publication number: 20200122318
    Abstract: A control system according to an embodiment includes a motor configured to drive a link, a first sensor configured to detect information about the driving by the motor or information about a relation between the driving means and the load member as first sensor information, a second sensor configured to detect information about a displacement of the link as second sensor information, and a control unit configured to perform feedback control of the driving means so as to follow a command value in a two-inertial system model including an inertial system on a load side and an inertial system on a driving side. The control unit includes a disturbance observer configured to estimate a disturbance, and a filter configured to convert an estimated value of the disturbance into a driving force of the motor.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Applicants: The University of Tokyo, Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Fujimoto, Akiyuki Hasegawa, Taro Takahashi