Patents by Inventor Tatsuya OHZU

Tatsuya OHZU 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: 20190293502
    Abstract: A sensor unit includes a shaft having a hollow portion and a torque sensor that is arranged inside the hollow portion and detects torsional torque acting on the shaft from inside the shaft. A motor unit can include the sensor unit and a drive motor. A vehicle can include the motor unit. A drive motor can be a traction motor that generates a traction drive force for the vehicle, for example.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: Yutaka ARIMURA, Daisuke HOSHINO, Tatsuya OHZU, Shingo SOMA, Yosuke TANAKA
  • Publication number: 20190293501
    Abstract: A motor unit includes a drive motor having an output shaft with a hollow portion, and a torque sensor arranged inside the hollow portion. The output shaft is formed by a magnetic body. A vehicle can include the motor unit. The drive motor can be a traction motor that generates traction drive force of the vehicle, for example.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: Yosuke TANAKA, Yutaka ARIMURA, Daisuke HOSHINO, Tatsuya OHZU, Shingo SOMA
  • Publication number: 20190267870
    Abstract: A drive motor in which a torque sensor is arranged on an outer circumference of a shaft, includes a rotor, a rotor shaft arranged inside the rotor, and an output shaft that is joined to the rotor shaft by a spline joint and outputs rotational force of the rotor shaft to the output side. The torque sensor is arranged on an output side of the spline joint in a range not overlapping with the spline joint.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Yutaka ARIMURA, Daisuke HOSHINO, Tatsuya OHZU, Shingo SOMA, Yosuke TANAKA
  • Publication number: 20190263388
    Abstract: A vehicle is equipped with a torque sensor configured to detect a torque, and which is disposed on a second transmission path connecting a first rotary electric machine and a first branch point on a first transmission path. When a first switching device is placed in a connected state and a vehicle wheel is driven by an internal combustion engine, a control device causes an inverted phase torque, which is opposite in phase to a detected torque detected by the torque sensor, to be generated in the first rotary electric machine.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 29, 2019
    Inventors: Daisuke HOSHINO, Yutaka ARIMURA, Tatsuya OHZU, Shingo SOMA, Yosuke TANAKA
  • Publication number: 20190263387
    Abstract: An electric vehicle includes a second rotating electric machine; a first transmission path configured to transmit force generated by the second rotating electric machine to a wheel; a first clutch that is arranged in the first transmission path and configured to switch between a connected state and a disconnected state between the second rotating electric machine and the wheel; and an ECU configured to control the second rotating electric machine and the first clutch. In the electric vehicle, a torque sensor is arranged between the first clutch and the wheel in the first transmission path.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 29, 2019
    Inventors: Daisuke HOSHINO, Yutaka ARIMURA, Tatsuya OHZU, Shingo SOMA, Yosuke TANAKA
  • Publication number: 20190267869
    Abstract: A drive motor includes a torque sensor on an outer circumference of a shaft. The drive motor includes a rotor, a rotor shaft arranged inside the rotor, and an output shaft that is joined to the rotor shaft by a joint having a loose element. In the drive motor, the output shaft outputs rotational force of the rotor shaft to the output side. The torque sensor is arranged on an upstream side of the joint in a range not overlapping with the joint.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Shingo SOMA, Yutaka ARIMURA, Daisuke HOSHINO, Tatsuya OHZU, Yosuke TANAKA
  • Publication number: 20190263381
    Abstract: A vehicle is equipped with a torque sensor configured to detect a torque, and which is disposed between an internal combustion engine and a first switching device on a first transmission path. When the first switching device is switched from a disconnected state to a connected state, a control device calculates a torque difference between a target torque of the internal combustion engine corresponding to a specified point on the first transmission path, and a detected torque or the like detected by the torque sensor. Further, the control device generates in a first rotary electric machine or a second rotary electric machine a compensation torque that compensates for the torque difference.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 29, 2019
    Inventors: Daisuke HOSHINO, Yutaka ARIMURA, Tatsuya OHZU, Shingo SOMA, Yosuke TANAKA