Patents by Inventor Shunsuke Hiromasa

Shunsuke Hiromasa 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).

  • Steering control system
    Patent number: 11597434
    Abstract: An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: March 7, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, JTEKT CORPORATION, DENSO CORPORATION
    Inventors: Masaharu Yamashita, Atsushi Sato, Masataka Okuda, Yosuke Yamashita, Shintaro Takayama, Shunsuke Hiromasa, Toshiyuki Mikida, Shoji Kubota, Yuji Fujita, Kenichi Abe, Toshimitsu Sakai
  • Steering control system
    Patent number: 11565746
    Abstract: An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: January 31, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, JTEKT CORPORATION, DENSO CORPORATION
    Inventors: Masaharu Yamashita, Atsushi Sato, Masataka Okuda, Yosuke Yamashita, Shintaro Takayama, Shunsuke Hiromasa, Toshiyuki Mikida, Shoji Kubota, Yuji Fujita, Kenichi Abe, Toshimitsu Sakai
  • STEERING CONTROL SYSTEM
    Publication number: 20200331522
    Abstract: An actuator that applies force to a member associated with steering, and a control device that controls the actuator, have duplex configuration. First and second control devices compute the same controlled variable as first and second controlled variables, respectively. In a normal mode, the control device controls the actuator according to the first controlled variable. The first and second control devices send and receive respectively computed controlled variables to and from each other via communications. When a discrepancy arises between the first and second controlled variables, or an abnormality occurs in communications between the first and second control devices, the operating mode is switched from the normal mode to an independent mode. In the independent mode, the first and second control devices control the first and second actuators, according to the first and second controlled variables, respectively.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 22, 2020
    Applicants: Toyota Jidosha Kabushiki Kaisha, JTEKT Corporation, Denso Corporation
    Inventors: Masaharu Yamashita, Atsushi Sato, Masataka Okuda, Yosuke Yamashita, Shintaro Takayama, Shunsuke Hiromasa, Toshiyuki Mikida, Shoji Kubota, Yuji Fujita, Kenichi Abe, Toshimitsu Sakai