Patents by Inventor Hidetsugu HIGUCHI

Hidetsugu HIGUCHI 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).

  • Driving assistance apparatus, driving assistance method, and non-transitory storage medium
    Patent number: 11731638
    Abstract: A driving assistance apparatus includes a processor having hardware. The processor is configured to acquire vehicle speed data before an ABS of a vehicle is activated and vehicle speed data when the ABS of the vehicle is stopped, calculate a coefficient of sliding friction based on the vehicle speed data before the ABS is activated and the vehicle speed data when the ABS is stopped, determine whether the coefficient of sliding friction is equal to or smaller than a threshold, and detect that a slip due to road freezing has occurred when the coefficient of sliding friction is equal to or smaller than the threshold.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: August 22, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO TEN Limited
    Inventors: Hidetsugu Higuchi, Hiromi Tonegawa, Kenji Tsumura, Hideaki Miyazaki
  • DRIVING ASSISTANCE APPARATUS, DRIVING ASSISTANCE METHOD, AND NON-TRANSITORY STORAGE MEDIUM
    Publication number: 20220017104
    Abstract: A driving assistance apparatus includes a processor having hardware. The processor is configured to acquire vehicle speed data before an ABS of a vehicle is activated and vehicle speed data when the ABS of the vehicle is stopped, calculate a coefficient of sliding friction based on the vehicle speed data before the ABS is activated and the vehicle speed data when the ABS is stopped, determine whether the coefficient of sliding friction is equal to or smaller than a threshold, and detect that a slip due to road freezing has occurred when the coefficient of sliding friction is equal to or smaller than the threshold.
    Type: Application
    Filed: July 12, 2021
    Publication date: January 20, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO TEN Limited
    Inventors: Hidetsugu HIGUCHI, Hiromi TONEGAWA, Kenji TSUMURA, Hideaki MIYAZAKI
  • SUBMERGENCE DATA DETECTION DEVICE, SUBMERGENCE DATA DETECTION METHOD, NON-TRANSITORY STORAGE MEDIUM, SUBMERGENCE DATA PROVISION SYSTEM, AND SUBMERGENCE DATA PROVISION DEVICE
    Publication number: 20210094544
    Abstract: A submergence data detection device includes a vehicle data acquisition unit configured to acquire vehicle data including at least acceleration data and estimation data for acquiring a drive power value and a traveling resistance value, and a submergence data detection unit configured to detect submergence data based on the vehicle data by a detection method including comparison of a threshold value set according to a calculated value of an acceleration of the vehicle calculated from the drive power value and the traveling resistance value with an actual value of the acceleration, and adjust the detection method according to whether or not a traveling state indicated by the vehicle data corresponds to a first state, in which reliability of the calculated value of the acceleration is degraded, such that detection accuracy of the submergence data in the first state is improved.
    Type: Application
    Filed: September 16, 2020
    Publication date: April 1, 2021
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasushi YAMANE, Teruo TATSUMI, Kazuhiro KATO, Yuhei MORI, Hiroshi NOMA, Hidetsugu HIGUCHI, Hiromi TONEGAWA, Kenji TSUMURA