Patents by Inventor Ryohta AOKI

Ryohta AOKI 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).

  • BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION
    Publication number: 20180003298
    Abstract: The present invention addresses problems of decrease in coefficient of friction and transmission efficiency, and increase in wear of a pulley and a metal element caused by a stopper regulating a moving end of a movable side pulley half of a belt type continuously variable transmission. In a belt type continuously variable transmission in which a metal belt is wound around a drive pulley and a driven pulley, in LOW change gear ratio, a movable side pulley half of the drive pulley is not confined in axial direction, and the movable side pulley half of the driven pulley abuts the closing stopper to regulate movement in closing direction, and in OD change gear ratio, the movable side pulley half of the drive pulley is not confined in the axial direction, and the movable side pulley half of the driven pulley abuts an opening stopper to regulate movement in opening direction.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Toru YAGASAKI, Soichiro SUMIDA, Ryohta AOKI, Shigeru KANEHARA
  • Control device for stepless transmission
    Patent number: 9534685
    Abstract: A control device includes: a clamping force determination unit that determines a clamping force Fs so that a transmission gear ratio R of a stepless transmission is a target transmission gear ratio; a correction unit that corrects the clamping force Fs determined by the clamping force determination unit, based on an oil temperature TO of a lubricant interposed between each of pulleys and a belt and the transmission gear ratio R; and a clamping force control unit that controls clamping of the pulleys and to be performed with the clamping force Fs corrected by the correction unit.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 3, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Yagasaki, Ryohta Aoki, Ryo Katayama, Ukyo Ogata, Hideaki Aoyama, Yuichiro Takemori
  • CONTROL DEVICE FOR STEPLESS TRANSMISSION
    Publication number: 20160017993
    Abstract: A control device includes: a clamping force determination unit that determines a clamping force Fs so that a transmission gear ratio R of a stepless transmission is a target transmission gear ratio; a correction unit that corrects the clamping force Fs determined by the clamping force determination unit, based on an oil temperature TO of a lubricant interposed between each of pulleys and a belt and the transmission gear ratio R; and a clamping force control unit that controls clamping of the pulleys and to be performed with the clamping force Fs corrected by the correction unit.
    Type: Application
    Filed: November 22, 2013
    Publication date: January 21, 2016
    Inventors: Toru YAGASAKI, Ryohta AOKI, Ryo KATAYAMA, Ukyo OGATA, Hideaki AOYAMA, Yuichiro TAKEMORI