Patents by Inventor Hikaru Asai

Hikaru Asai 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).

  • Vehicular continuously variable transmission, vehicle equipped with vehicular continuously variable transmission, and method of controlling vehicular continuously variable transmission
    Patent number: 11773971
    Abstract: A belt-type continuously variable transmission includes an actual gear ratio calculation unit for calculating an actual gear ratio based on the rotation speed of a drive pulley and the rotation speed of a driven pulley, a reference gear ratio calculation unit for calculating a reference gear ratio by modifying the actual gear ratio based on an input torque and a driven pulley hydraulic pressure, and a condition determination unit for, in a case where the target gear ratio is an overdrive gear ratio, determining that at least part of rings of a belt is missing when the reference gear ratio is greater than or equal to a predetermined gear ratio and a drive pulley hydraulic pressure is greater than or equal to a predetermined hydraulic pressure.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 3, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hideaki Yoshida, Ukyo Ogata, Atsushi Okabe, Hikaru Asai, Takeshi Kurata
  • VEHICULAR CONTINUOUSLY VARIABLE TRANSMISSION, VEHICLE EQUIPPED WITH VEHICULAR CONTINUOUSLY VARIABLE TRANSMISSION, AND METHOD OF CONTROLLING VEHICULAR CONTINUOUSLY VARIABLE TRANSMISSION
    Publication number: 20220170544
    Abstract: A belt-type continuously variable transmission includes an actual gear ratio calculation unit for calculating an actual gear ratio based on the rotation speed of a drive pulley and the rotation speed of a driven pulley, a reference gear ratio calculation unit for calculating a reference gear ratio by modifying the actual gear ratio based on an input torque and a driven pulley hydraulic pressure, and a condition determination unit for, in a case where the target gear ratio is an overdrive gear ratio, determining that at least part of rings of a belt is missing when the reference gear ratio is greater than or equal to a predetermined gear ratio and a drive pulley hydraulic pressure is greater than or equal to a predetermined hydraulic pressure.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Inventors: Hideaki Yoshida, Ukyo Ogata, Atsushi Okabe, Hikaru Asai, Takeshi Kurata