Patents by Inventor Jun NAMIMA

Jun NAMIMA 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: 12654593
    Abstract: A travel control device includes: a switching determination unit configured to determine whether a traveling mode of the fuel cell vehicle is switched from a first traveling mode in which the fuel cell vehicle travels mainly using power generated by a fuel cell to a second traveling mode in which the fuel cell vehicle travels using discharge power of a battery; and a permission determination unit configured to determine whether to permit traveling in the second traveling mode based on a charging rate of the battery when the switching determination unit determines that the traveling mode has been switched from the first traveling mode to the second traveling mode, in which the permission determination unit is configured to permit traveling in the second traveling mode when the charging rate of the battery is greater than or equal to a predetermined charging rate threshold for permission.
    Type: Grant
    Filed: January 10, 2024
    Date of Patent: June 16, 2026
    Assignees: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro Taniguchi, Minoru Kowada, Jun Namima
  • Patent number: 12491772
    Abstract: An operating mode control device includes a travel driving force information acquisition unit configured to acquire a time-series travel driving force when traveling on a travel route; a vehicle speed information acquisition unit configured to acquire a time-series vehicle speed when traveling on the travel route; a motor operation estimation unit configured to estimate a time-series torque and rotation speed of the motor on the basis of a time-series travel driving force and vehicle speed; an efficiency calculation unit configured to acquire a time-series efficiency value of each operating mode on the basis of the time-series torque and rotation speed and calculate a total efficiency value; an operating mode determination unit configured to determine the operating mode having the highest total efficiency value as a default operating mode; and an operation control unit configured to control an operation by the default operating mode.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: December 9, 2025
    Assignees: Hino Motors, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Jun Namima, Minoru Kowada
  • Patent number: 12491796
    Abstract: A state determination unit determines whether a state of traveling performance of a fuel cell vehicle is a normal performance state, a limited performance state, or a low performance state. When the state determination unit determines that the fuel cell vehicle is in the normal performance state or the limited performance state, a traveling propriety determination unit determines that the fuel cell vehicle can travel. A notification control unit performs a limited state notification when the state determination unit determines that the fuel cell vehicle is in the limited performance state and the traveling propriety determination unit determines that the fuel cell vehicle can travel.
    Type: Grant
    Filed: March 14, 2024
    Date of Patent: December 9, 2025
    Assignees: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro Taniguchi, Jun Namima
  • Patent number: 12097782
    Abstract: A battery management device includes: a first switch state acquisition unit configured to acquire the state of an ignition switch; a determination unit configured to determine to perform correction control for correcting an error in the state of charge (SOC) of the battery when the ignition switch is operated from ON to OFF; a correction control unit configured to perform the correction control of the SOC of the battery when it is determined that the correction control is to be performed; and a second switch state acquisition unit configured to acquire the state of a cancel switch for canceling the execution of the correction control. When the ignition switch is operated from ON to OFF while the cancel switch is ON, the determination unit determines that the correction control is not to be performed.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: September 24, 2024
    Assignees: Hino Motors, Ltd., TOYOTA .JIDOSHA KABUSHIKI. KAISHA
    Inventors: Koichiro Taniguchi, Minoru Kowada, Jun Namima, Yu Yaguchi, Shin Mizoroki
  • Publication number: 20240308391
    Abstract: A state determination unit determines whether a state of traveling performance of a fuel cell vehicle is a normal performance state, a limited performance state, or a low performance state. When the state determination unit determines that the fuel cell vehicle is in the normal performance state or the limited performance state, a traveling propriety determination unit determines that the fuel cell vehicle can travel. A notification control unit performs a limited state notification when the state determination unit determines that the fuel cell vehicle is in the limited performance state and the traveling propriety determination unit determines that the fuel cell vehicle can travel.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 19, 2024
    Applicants: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro TANIGUCHI, Jun NAMIMA
  • Publication number: 20240227625
    Abstract: A start control device for a fuel cell vehicle includes: a request determination unit configured to determine whether there is a request for starting the fuel cell vehicle in a second traveling mode after a power supply of the fuel cell vehicle is turned ON; and a start control unit configured to perform control to start the fuel cell vehicle in the second traveling mode when the request determination unit determines that there is a request for starting the fuel cell vehicle in the second traveling mode.
    Type: Application
    Filed: January 10, 2024
    Publication date: July 11, 2024
    Applicants: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro TANIGUCHI, Minoru KOWADA, Jun NAMIMA
  • Publication number: 20240227626
    Abstract: A travel control device includes: a switching determination unit configured to determine whether a traveling mode of the fuel cell vehicle is switched from a first traveling mode in which the fuel cell vehicle travels mainly using power generated by a fuel cell to a second traveling mode in which the fuel cell vehicle travels using discharge power of a battery; and a permission determination unit configured to determine whether to permit traveling in the second traveling mode based on a charging rate of the battery when the switching determination unit determines that the traveling mode has been switched from the first traveling mode to the second traveling mode, in which the permission determination unit is configured to permit traveling in the second traveling mode when the charging rate of the battery is greater than or equal to a predetermined charging rate threshold for permission.
    Type: Application
    Filed: January 10, 2024
    Publication date: July 11, 2024
    Applicants: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro TANIGUCHI, Minoru KOWADA, Jun NAMIMA
  • Publication number: 20230356598
    Abstract: A vehicle power supply control device includes an interlock circuit configured to detect opening of a case of an electronic device, an interlock detecting unit configured to detect the opening based on an input signal from the interlock circuit, a vehicle speed detecting unit, and a power supply control unit configured to cut off supply of electric power from an onboard battery to the electronic device when a duration of a state in which a vehicle speed is 0 exceeds a predetermined stoppage time after the opening of the case has been detected.
    Type: Application
    Filed: September 24, 2021
    Publication date: November 9, 2023
    Applicant: Hino Motors, Ltd.
    Inventors: Koichiro TANIGUCHI, Minoru KOWADA, Jun NAMIMA, Yuta OKAZOE
  • Publication number: 20220402400
    Abstract: A battery management device includes: a first switch state acquisition unit configured to acquire the state of an ignition switch; a determination unit configured to determine to perform correction control for correcting an error in the state of charge (SOC) of the battery when the ignition switch is operated from ON to OFF; a correction control unit configured to perform the correction control of the SOC of the battery when it is determined that the correction control is to be performed; and a second switch state acquisition unit configured to acquire the state of a cancel switch for canceling the execution of the correction control. When the ignition switch is operated from ON to OFF while the cancel switch is ON, the determination unit determines that the correction control is not to be performed.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 22, 2022
    Applicants: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro TANIGUCHI, Minoru KOWADA, Jun NAMIMA, Yu YAGUCHI, Shin MIZOROKI
  • Publication number: 20220402371
    Abstract: An operating mode control device includes a travel driving force information acquisition unit configured to acquire a time-series travel driving force when traveling on a travel route; a vehicle speed information acquisition unit configured to acquire a time-series vehicle speed when traveling on the travel route; a motor operation estimation unit configured to estimate a time-series torque and rotation speed of the motor on the basis of a time-series travel driving force and vehicle speed; an efficiency calculation unit configured to acquire a time-series efficiency value of each operating mode on the basis of the time-series torque and rotation speed and calculate a total efficiency value; an operating mode determination unit configured to determine the operating mode having the highest total efficiency value as a default operating mode; and an operation control unit configured to control an operation by the default operating mode.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 22, 2022
    Applicants: Hino Motors, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Jun NAMIMA, Minoru KOWADA