Patents by Inventor Sunghoon WOO

Sunghoon WOO 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: 12358488
    Abstract: A vehicle control device for controlling a vehicle that transmits a driving force input from an engine to a driving wheel via a continuously variable transmission mechanism, in which in a case where an accelerator is in a non-depressed state during traveling, a first traveling state is established in which fuel supply to an engine is stopped and a clutch between the engine and the driving wheel is disengaged, when the accelerator is depressed during traveling in the first traveling state, the engine is started and the clutch is engaged to increase a hydraulic pressure supplied to the pulleys, and a timing at which the hydraulic pressure supplied to the pulleys becomes higher due to the accelerator being depressed during traveling in the first traveling state is later than a timing at which the hydraulic pressure supplied to the pulleys becomes higher due to the accelerator being further depressed when the vehicle is not in the first traveling state.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: July 15, 2025
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Nakho Lee, Sunghoon Woo, Seunghwan Choi, Jonghwan Lee, Sunho Lee, Keisuke Iwado, Hiroyuki Tokoi
  • Publication number: 20250145140
    Abstract: A vehicle control device for controlling a vehicle that transmits a driving force input from an engine to a driving wheel via a continuously variable transmission mechanism, in which in a case where an accelerator is in a non-depressed state during traveling, a first traveling state is established in which fuel supply to an engine is stopped and a clutch between the engine and the driving wheel is disengaged, when the accelerator is depressed during traveling in the first traveling state, the engine is started and the clutch is engaged to increase a hydraulic pressure supplied to the pulleys, and a timing at which the hydraulic pressure supplied to the pulleys becomes higher due to the accelerator being depressed during traveling in the first traveling state is later than a timing at which the hydraulic pressure supplied to the pulleys becomes higher due to the accelerator being further depressed when the vehicle is not in the first traveling state.
    Type: Application
    Filed: February 14, 2023
    Publication date: May 8, 2025
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Nakho LEE, Sunghoon WOO, Seunghwan CHOI, Jonghwan LEE, Sunho LEE, Keisuke IWADO, Hiroyuki TOKOI
  • Patent number: 10207714
    Abstract: Control device for continuously variable transmission has continuously variable transmission mechanism (CVT) transmitting power with belt (7) wound around primary and secondary pulley (5, 6); torque convertor (2) having pump impeller (20), turbine runner (21) and lock-up clutch (2a); and control unit (10) controlling lock-up clutch (2a) to predetermined engagement state and controlling the CVT to predetermined transmission ratio, according to travelling condition.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 19, 2019
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Seiichiro Takahashi, Hiroki Iwasa, Hironori Miyaishi, Sunghoon Woo, Takaaki Matsui, Tomoaki Honma, Yoshio Yasui, Yuta Suzuki, Masayuki Mannen, Susumu Saitou
  • Publication number: 20160339921
    Abstract: Control device for continuously variable transmission has continuously variable transmission mechanism (CVT) transmitting power with belt (7) wound around primary and secondary pulley (5, 6); torque convertor (2) having pump impeller (20), turbine runner (21) and lock-up clutch (2a); and control unit (10) controlling lock-up clutch (2a) to predetermined engagement state and controlling the CVT to predetermined transmission ratio, according to travelling condition.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 24, 2016
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Seiichiro TAKAHASHI, Hiroki IWASA, Hironori MIYAISHI, Sunghoon WOO, Takaaki MATSUI, Tomoaki HONMA, Yoshio YASUI, Yuta SUZUKI, Masayuki MANNEN, Susumu SAITOU