Patents by Inventor Ryohei KITAYOSHI

Ryohei KITAYOSHI 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).

  • Publication number: 20240160179
    Abstract: A control system includes processing circuitry that calculates, based on a control target model that indicates a relationship between an operation of a control target and a friction acting on the control target, a continuous value for compensating for the friction as a feedforward compensation value, generates a command based on the feedforward compensation value, and outputs the command to cause the control target to operate.
    Type: Application
    Filed: January 22, 2024
    Publication date: May 16, 2024
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Ryohei KITAYOSHI
  • Publication number: 20230234223
    Abstract: A control system includes circuitry configured to: generate, based on a command profile representing a temporal change of a command for driving a controlled object and a response profile representing a temporal change of a state of the controlled object responding to the command profile, a first model representing at least a part of a relation between the command and the state of the controlled object; generate, based on the command profile, the response profile, and the first model, a second model representing another part of the relation that is not represented by the first model; generate, based on the first model and the second model, one or more control parameters representing a relation between a control reference and the command for causing the controlled object to follow the control reference; and control the controlled object to cause the state of the controlled object to follow the control reference based at least in part on the control reference and the one or more control parameters.
    Type: Application
    Filed: March 30, 2023
    Publication date: July 27, 2023
    Inventors: Hiroshi FUJIMOTO, Ryohei KITAYOSHI
  • Publication number: 20230195059
    Abstract: A control system includes a storage that stores a computational model of a reference response profile representing a frequency characteristic of a reference state of a control target corresponding to a first command, and circuitry configured to calculate a first actual response profile representing a frequency characteristic of an actual state of the control target having responded to the first command. The circuity is further configured to acquire an error between the reference response profile and the first actual response profile, and cause a controller to output, to the control target, a second command that is based on a frequency at which the error is greater than a threshold. Additionally, the circuity is configured to calculate a second actual response profile representing a frequency characteristic of an actual state of the control target having responded to the second command, and update the computational model based on the second actual response profile and the reference response profile.
    Type: Application
    Filed: February 24, 2023
    Publication date: June 22, 2023
    Inventors: Hiroshi FUJIMOTO, Ryohei KITAYOSHI