Patents by Inventor Yoshiyuki Senba

Yoshiyuki Senba 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: 11760200
    Abstract: An electric powered vehicle may include a maximum speed limiting device. In the first mode, in a case where the distance is shorter than a first reference value, the maximum speed is limited to a value lower than the maximum speed applied when the distance is longer than the first reference value. In the second mode, in a case where the distance is shorter than a second reference value, the maximum speed is limited to a value lower than the maximum speed applied when the distance is longer than the second reference value. In a case where the distance changes from a value shorter than the first and second reference values to a value longer the first and second reference values, the maximum speed limiting device increases the maximum speed at an earlier timing in the second mode than in the first mode.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: September 19, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshiyuki Senba
  • Publication number: 20210370770
    Abstract: An electric powered vehicle may include a maximum speed limiting device. In the first mode, in a case where the distance is shorter than a first reference value, the maximum speed is limited to a value lower than the maximum speed applied when the distance is longer than the first reference value. In the second mode, in a case where the distance is shorter than a second reference value, the maximum speed is limited to a value lower than the maximum speed applied when the distance is longer than the second reference value. In a case where the distance changes from a value shorter than the first and second reference values to a value longer the first and second reference values, the maximum speed limiting device increases the maximum speed at an earlier timing in the second mode than in the first mode.
    Type: Application
    Filed: April 23, 2021
    Publication date: December 2, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshiyuki SENBA
  • Patent number: 10807470
    Abstract: An electric wheelchair operation apparatus includes a sliding part disposed in an armrest part, a dial part disposed on a tip side of the armrest part, the dial part configured to be moved together with the sliding part in the vehicle forward/backward direction, and an electric wheelchair drive control unit configured to control a traveling motion of an electric wheelchair by associating the amount of movement of the sliding part and/or the moved position thereof with respect to the reference point in the vehicle forward/backward direction detected by a first sensor with a traveling motion of the electric wheelchair in a forward/backward direction and associating the amount of rotation, the rotational position, and/or the rotational torque of the dial part detected by a second sensor with a turning motion of the electric wheelchair in a left/right direction.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 20, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyuki Senba, Yusuke Kosaka, Takashi Izuo
  • Patent number: 10377382
    Abstract: A vehicle controller applies a braking force to wheels using a hydraulic braking force generating mechanism and sets a vehicle driving torque, which is generated by an engine, to a second torque which is smaller than a first torque in a normal state, when a switch is switched to an ON state in a state in which a vehicle is traveling and an accelerator is turned on. Then vehicle stops, the vehicle controller implements an EPB mechanical operating state using a mechanical parking brake mechanism. When the switch is switched to an OFF state, the vehicle controller maintains the EPB mechanical operating state until an accelerator pedal operating level reaches “0,” and maintains the vehicle driving torque at the second torque. Then the accelerator pedal operating level reaches “0”, the EPB mechanical operating state is released and the vehicle driving torque is returned to the first torque.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: August 13, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiyuki Senba, Yoji Mizoguchi, Masashi Oishi, Satoaki Haruyama, Yoshikatsu Oda
  • Patent number: 10266097
    Abstract: When a vehicle body is on board an escalator, a control device makes an ejection determination by use of an external sensor. The control device makes an ejection determination by use of front-wheel rotation sensors. The control device makes an ejection determination by use of an inclination detecting unit. The control device switches a control mode from a boarding control mode to an ejection control mode, when at least one of the above three ejection determinations is affirmatively made.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 23, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, The University of Tokyo
    Inventors: Tomoyuki Takahata, Masaru Ishikawa, Yoshiyuki Senba, Takashi Izuo, Yusuke Kosaka
  • Publication number: 20180339589
    Abstract: An electric wheelchair operation apparatus includes a sliding part disposed in an armrest part, a dial part disposed on a tip side of the armrest part, the dial part configured to be moved together with the sliding part in the vehicle forward/backward direction, and an electric wheelchair drive control unit configured to control a traveling motion of an electric wheelchair by associating the amount of movement of the sliding part and/or the moved position thereof with respect to the reference point in the vehicle forward/backward direction detected by a first sensor with a traveling motion of the electric wheelchair in a forward/backward direction and associating the amount of rotation, the rotational position, and/or the rotational torque of the dial part detected by a second sensor with a turning motion of the electric wheelchair in a left/right direction.
    Type: Application
    Filed: April 17, 2018
    Publication date: November 29, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyuki SENBA, Yusuke KOSAKA, Takashi IZUO
  • Publication number: 20180178706
    Abstract: When a vehicle body is on board an escalator, a control device makes an ejection determination by use of an external sensor. The control device makes an ejection determination by use of front-wheel rotation sensors. The control device makes an ejection determination by use of an inclination detecting unit. The control device switches a control mode from a boarding control mode to an ejection control mode, when at least one of the above three ejection determinations is affirmatively made.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 28, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, The University of Tokyo
    Inventors: Tomoyuki TAKAHATA, Masaru ISHIKAWA, Yoshiyuki SENBA, Takashi IZUO, Yusuke KOSAKA
  • Publication number: 20170361846
    Abstract: A vehicle controller applies a braking force to wheels using a hydraulic braking force generating mechanism and sets a vehicle driving torque, which is generated by an engine, to a second torque which is smaller than a first torque in a normal state, when a switch is switched to an ON state in a state in which a vehicle is traveling and an accelerator is turned on. Then vehicle stops, the vehicle controller implements an EPB mechanical operating state using a mechanical parking brake mechanism. When the switch is switched to an OFF sate, the vehicle controller maintains the EPB mechanical operating state until an accelerator pedal operating level reaches “0,” and maintains the vehicle driving torque at the second torque. Then the accelerator pedal operating level reaches “0”, the EPB mechanical operating state is released and the vehicle driving torque is returned to the first torque.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 21, 2017
    Inventors: Yoshiyuki Senba, Yoji Mizoguchi, Masashi Oishi, Satoaki Haruyama, Yoshikatsu Oda
  • Patent number: 8265774
    Abstract: An inverted pendulum type moving body according to the present invention includes: first actuators that rotationally drive wheels each disposed on an axle; and a turning motion control portion that controls the first actuators when the inverted pendulum type moving body comes into contact with an obstacle so as to allow the inverted pendulum type moving body to perform a turning motion.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 11, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiyuki Senba, Koji Yamada, Takashi Izuo, Takuya Serai, Mitsuo Koide, Kazutoshi Sukigara, Chisao Hayashi
  • Patent number: 8011459
    Abstract: To provide an inverted wheel type moving body capable of improving the operability, and a method of controlling the same. An inverted wheel type moving body in accordance with one aspect of the present invention includes motors 34 and 36 for rotationally driving a right driving wheel 18 and a left driving wheel 20 respectively, a passenger seat 74 rotationally supported on mounts 26 and 28 through swing arms 17 and 19, a passenger seat drive motor 70 for driving the passenger seat 74, a control portion 80 for determining whether the manipulation amount exceeds the threshold value or not, and a motor driver 70a for control the passenger seat drive motor 70 such that the passenger seat 74 is moved in accordance with the manipulation amount when the manipulation amount does not exceed the threshold value and the movement of the passenger seat 74 is restored after the manipulation amount exceeds the threshold value.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 6, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takuya Serai, Yoshiyuki Senba, Koji Yamada, Takashi Izuo, Chisao Hayashi, Mitsuo Koide, Kazutoshi Sukigara
  • Publication number: 20110178667
    Abstract: The vehicle is provided with a body; a pair of right and left wheels; a first motor that drives one of the wheels; a second motor that drives the other one of wheels; a controller for receiving a target current value for the first motor and controlling current of the first motor; a calculator for receiving the target current value and an actual movement amount of the first motor and calculating a disturbance torque loaded on the first motor; an adjuster for adjusting the target current value for the first motor in a basis of the disturbance torque; a controller for receiving a target current value for the second motor and controlling current of the second motor; a calculator for receiving the target current value and an actual movement amount of the second motor and calculating a disturbance torque loaded on the second motor; an adjuster for adjusting the target current value for the second motor in a basis of the disturbance torque.
    Type: Application
    Filed: September 25, 2008
    Publication date: July 21, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyuki Senba, Koji Yamada, Takashi Izuo, Takuya Serai, Mitsuo Koide, Kazutoshi Sukigara, Chisao Hayashi
  • Publication number: 20090108553
    Abstract: To provide an inverted wheel type moving body capable of improving the operability, and a method of controlling the same. An inverted wheel type moving body in accordance with one aspect of the present invention includes motors 34 and 36 for rotationally driving a right driving wheel 18 and a left driving wheel 20 respectively, a passenger seat 74 rotationally supported on mounts 26 and 28 through swing arms 17 and 19, a passenger seat drive motor 70 for driving the passenger seat 74, a control portion 80 for determining whether the manipulation amount exceeds the threshold value or not, and a motor driver 70a for control the passenger seat drive motor 70 such that the passenger seat 74 is moved in accordance with the manipulation amount when the manipulation amount does not exceed the threshold value and the movement of the passenger seat 74 is restored after the manipulation amount exceeds the threshold value.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Takuya Serai, Yoshiyuki Senba, Koji Yamada, Takashi Izuo, Chisao Hayashi, Mitsuo Koide, Kazutoshi Sukigara
  • Publication number: 20090107240
    Abstract: An inverted pendulum type moving body according to the present invention includes: first actuators that rotationally drive wheels each disposed on an axle; and a turning motion control portion that controls the first actuators when the inverted pendulum type moving body comes into contact with an obstacle so as to allow the inverted pendulum type moving body to perform a turning motion.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Yoshiyuki Senba, Koji Yamada, Takashi Izuo, Takuya Serai, Mitsuo Koide, Kazutoshi Sukigara, Chisao Hayashi