Patents by Inventor Mitsuko YOSHIDA

Mitsuko YOSHIDA 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).

  • Patent number: 12594985
    Abstract: A motor control device includes: an assist torque command value generation unit that generates an assist torque command value using steering torque; a manual steering command value generation unit that generates a manual steering command value using the steering torque and the assist torque command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value for driving assist; and a switching unit that switches between a first control mode in which an electric motor is controlled based on the assist torque command value or the manual steering command value and a second control mode in which the electric motor is controlled based on the integrated angle command value according to a lateral position of a vehicle with respect to a lane in a driving assist mode.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: April 7, 2026
    Assignee: JTEKT CORPORATION
    Inventors: Syouma Edamoto, Tsutomu Tamura, Robert Fuchs, Mitsuko Yoshida
  • Patent number: 12459371
    Abstract: A motor control unit includes: an assist torque command value generation unit that generates an assist torque command value using steering torque; a manual steering command value generation unit that generates a manual steering command value using the steering torque and the assist torque command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value; and a switching unit that switches between a first control for controlling an electric motor based on the assist torque command value and a second control for controlling the electric motor based on the integrated angle command value, based on a switching signal.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: November 4, 2025
    Assignee: JTEKT CORPORATION
    Inventors: Naoki Shoji, Mitsuko Yoshida, Robert Fuchs
  • Publication number: 20240416991
    Abstract: A motor control device includes: an assist torque command value generation unit that generates an assist torque command value using steering torque; a manual steering command value generation unit that generates a manual steering command value using the steering torque and the assist torque command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value for driving assist; and a switching unit that switches between a first control mode in which an electric motor is controlled based on the assist torque command value or the manual steering command value and a second control mode in which the electric motor is controlled based on the integrated angle command value according to a lateral position of a vehicle with respect to a lane in a driving assist mode.
    Type: Application
    Filed: May 12, 2022
    Publication date: December 19, 2024
    Applicant: JTEKT CORPORATION
    Inventors: Syouma EDAMOTO, Tsutomu TAMURA, Robert FUCHS, Mitsuko YOSHIDA
  • Publication number: 20240383526
    Abstract: A motor control device includes: an assist torque instruction value generation unit that generates an assist torque instruction value using steering torque; a manual steering instruction value generation unit that generates a manual steering instruction value using the steering torque and the assist torque instruction value; an integrated angle instruction value computation unit that computes an integrated angle instruction value by adding the manual steering instruction value to an automatic steering instruction value for driving assist; and a switching unit that switches between a first control mode, in which the electric motor is controlled based on the assist torque instruction value or the manual steering instruction value, and a second control mode, in which the electric motor is controlled based on the integrated angle instruction value, according to the steering torque when in a driving assist mode.
    Type: Application
    Filed: January 28, 2022
    Publication date: November 21, 2024
    Applicant: JTEKT CORPORATION
    Inventors: Tsutomu TAMURA, Robert FUCHS, Mitsuko YOSHIDA
  • Publication number: 20240278650
    Abstract: A motor control unit includes: an assist torque command value generation unit that generates an assist torque command value using steering torque; a manual steering command value generation unit that generates a manual steering command value using the steering torque and the assist torque command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value; and a switching unit that switches between a first control for controlling an electric motor based on the assist torque command value and a second control for controlling the electric motor based on the integrated angle command value, based on a switching signal.
    Type: Application
    Filed: June 28, 2022
    Publication date: August 22, 2024
    Applicant: JTEKT CORPORATION
    Inventors: Naoki SHOJI, Mitsuko YOSHIDA, Robert FUCHS
  • Patent number: 11820425
    Abstract: A steering angle calculation apparatus includes an electronic control unit configured to calculate a steering angle based on a torque caused by a driver and at least one of vehicle information, surrounding environment information, and driver information.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: November 21, 2023
    Assignee: JTEKT CORPORATION
    Inventors: Naoki Shoji, Mitsuko Yoshida
  • Patent number: 11685430
    Abstract: A motor controlling ECU 202 includes an automatic steering controller 42 that sets an automatic steering control amount, an assist controller 41 that sets an assist control amount, an integrated control amount calculating portion 43 that calculates an integrated control amount by adding the automatic steering control amount and the assist control amount, and an actual automatic steering angle calculating portion 46 that calculates, based on at least one of either of a steering torque and the assist control amount, an actual automatic steering angle that is a steering angle due to automatic steering control and included in an actual steering angle. The automatic steering controller 42 uses a target automatic steering angle and the actual automatic steering angle to set the automatic steering control amount.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 27, 2023
    Assignee: JTEKT CORPORATION
    Inventors: Mitsuko Yoshida, Naoki Shoji, Robert Fuchs
  • Patent number: 11299197
    Abstract: A steering system includes an electric motor, a detector, and a controller of a vehicle. The controller is configured to control the electric motor by switching an autonomous steering mode, a manual steering mode, and a cooperative steering mode. The controller is configured to control the electric motor in the cooperative steering mode unconditionally or when a predetermined condition is satisfied in a case where a situation to switch a steering mode to the manual steering mode during control in the autonomous steering mode is predicted and a manual steering request is transmitted at a time point that is prior, by a first predetermined time, to occurrence of the situation, or is transmitted when the vehicle arrives at a point that is located a first predetermined distance before a point where the situation is to occur.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 12, 2022
    Assignee: JTEKT CORPORATION
    Inventors: Naoki Shoji, Robert Fuchs, Mitsuko Yoshida
  • Patent number: 11180187
    Abstract: A manual steering command value generation unit generates a manual steering command value using steering torque. An integrated angle command value computation unit computes an integrated angle command value by adding the manual steering command value to an automatic steering command value. A control unit performs angle control on an electric motor on the basis of the integrated angle command value. The control unit includes: a basic torque command value computation unit that computes a basic torque command value on the basis of the integrated angle command value; a disturbance torque estimation unit that estimates disturbance torque other than motor torque that is generated by the electric motor and acts on an object to be driven by the electric motor; and a disturbance torque compensation unit that corrects the basic torque command value in accordance with the disturbance torque.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: November 23, 2021
    Assignee: JTEKT CORPORATION
    Inventors: Naoki Shoji, Robert Fuchs, Tsutomu Tamura, Mitsuko Yoshida
  • Publication number: 20210253161
    Abstract: A motor controlling ECU includes an automatic steering controller that sets an automatic steering control amount, an assist controller that sets an assist control amount, an integrated control amount calculating portion that calculates an integrated control amount by adding the automatic steering control amount and the assist control amount, and an actual automatic steering angle calculating portion that calculates, based on at least one of either of a steering torque and the assist control amount, an actual automatic steering angle that is a steering angle due to automatic steering control and included in an actual steering angle. The automatic steering controller uses a target automatic steering angle and the actual automatic steering angle to set the automatic steering control amount.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 19, 2021
    Applicant: JTEKT CORPORATION
    Inventors: Mitsuko YOSHIDA, Naoki SHOJI, Robert FUCHS
  • Publication number: 20200398893
    Abstract: A steering angle calculation apparatus includes an electronic control unit configured to calculate a steering angle based on a torque caused by a driver and at least one of vehicle information, surrounding environment information, and driver information.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 24, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Naoki SHOJI, Mitsuko YOSHIDA
  • Publication number: 20200317261
    Abstract: A steering system includes an electric motor, a detector, and a controller of a vehicle. The controller is configured to control the electric motor by switching an autonomous steering mode, a manual steering mode, and a cooperative steering mode. The controller is configured to control the electric motor in the cooperative steering mode unconditionally or when a predetermined condition is satisfied in a case where a situation to switch a steering mode to the manual steering mode during control in the autonomous steering mode is predicted and a manual steering request is transmitted at a time point that is prior, by a first predetermined time, to occurrence of the situation, or is transmitted when the vehicle arrives at a point that is located a first predetermined distance before a point where the situation is to occur.
    Type: Application
    Filed: March 30, 2020
    Publication date: October 8, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Naoki SHOJI, Robert FUCHS, Mitsuko YOSHIDA
  • Publication number: 20190329818
    Abstract: A manual steering command value generation unit generates a manual steering command value using steering torque. An integrated angle command value computation unit computes an integrated angle command value by adding the manual steering command value to an automatic steering command value. A control unit performs angle control on an electric motor on the basis of the integrated angle command value. The control unit includes: a basic torque command value computation unit that computes a basic torque command value on the basis of the integrated angle command value; a disturbance torque estimation unit that estimates disturbance torque other than motor torque that is generated by the electric motor and acts on an object to be driven by the electric motor; and a disturbance torque compensation unit that corrects the basic torque command value in accordance with the disturbance torque.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 31, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Naoki SHOJI, Robert FUCHS, Tsutomu TAMURA, Mitsuko YOSHIDA