Patents by Inventor Youn Hyung CHO

Youn Hyung CHO 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: 11124039
    Abstract: A coupled torsion beam axle apparatus of a vehicle includes: a left torsion bar and a right torsion bar arranged in an internal space of the torsion beam so to be separated from each other in a horizontal direction of a torsion beam. Torsion stiffness of the torsion beam is tuned by replacing the left torsion bar and the right torsion bar, and particularly, warping stiffness is tuned by changing a position where the left torsion bar is coupled to the torsion beam and a position where the right torsion bar is coupled to the torsion beam.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 21, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Youn Hyung Cho, Dong Min Lim
  • Publication number: 20200353787
    Abstract: A coupled torsion beam axle apparatus of a vehicle includes: a left torsion bar and a right torsion bar arranged in an internal space of the torsion beam so to be separated from each other in a horizontal direction of a torsion beam. Torsion stiffness of the torsion beam is tuned by replacing the left torsion bar and the right torsion bar, and particularly, warping stiffness is tuned by changing a position where the left torsion bar is coupled to the torsion beam and a position where the right torsion bar is coupled to the torsion beam.
    Type: Application
    Filed: September 12, 2019
    Publication date: November 12, 2020
    Inventors: Youn Hyung Cho, Dong Min Lim
  • Patent number: 10328763
    Abstract: A suspension apparatus may include an internal cylinder having fixing grooves, an intermediate cylinder rotatably provided around the internal cylinder to allow a shock-absorber to be moved up and down, and having connection holes, an external cylinder rotatably provided around the intermediate cylinder and having locking pins to be inserted into the fixing grooves through the connection holes such that the locking pins are decoupled from the fixing grooves, but remain inserted into the connection holes, and a driving device connected to the external cylinder to rotate the intermediate cylinder to allow the shock-absorber to be moved up and down, adjusting a height of a vehicle body.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 25, 2019
    Assignees: Hyundai Motor Company, Kia Motor Company
    Inventors: Sang Hoon Lee, Chang Sin Lee, Youn Hyung Cho
  • Patent number: 10259283
    Abstract: A vehicle suspension apparatus configured for adjusting vehicle height may include a fixing device disposed at a wheel side, provided on an internal peripheral surface along its perimeter with a plurality of fixing grooves; a moving device provided to be rotatable within the fixing device, formed along its perimeter with coupling grooves corresponding to the fixing grooves and coupled such that a shock absorber moves in an up and down direction; a driving device disposed at the fixing device to transmit power; and a drive shaft provided to be rotatable within the moving device and provided with a fixing pin inserted into the coupling groove of the moving device and the fixing groove of the fixing device such that the fixing pin is disengaged from the fixing groove and remains inserted only into the coupling groove when the drive shaft rotates.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 16, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Hoon Lee, Chang Sin Lee, Youn Hyung Cho
  • Publication number: 20180170139
    Abstract: A vehicle suspension apparatus configured for adjusting vehicle height may include a fixing device disposed at a wheel side, provided on an internal peripheral surface along its perimeter with a plurality of fixing grooves; a moving device provided to be rotatable within the fixing device, formed along its perimeter with coupling grooves corresponding to the fixing grooves and coupled such that a shock absorber moves in an up and down direction; a driving device disposed at the fixing device to transmit power; and a drive shaft provided to be rotatable within the moving device and provided with a fixing pin inserted into the coupling groove of the moving device and the fixing groove of the fixing device such that the fixing pin is disengaged from the fixing groove and remains inserted only into the coupling groove when the drive shaft rotates.
    Type: Application
    Filed: June 23, 2017
    Publication date: June 21, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Hoon LEE, Chang Sin LEE, Youn Hyung CHO
  • Publication number: 20180170140
    Abstract: A suspension apparatus may include an internal cylinder having fixing grooves, an intermediate cylinder rotatably provided around the internal cylinder to allow a shock-absorber to be moved up and down, and having connection holes, an external cylinder rotatably provided around the intermediate cylinder and having locking pins to be inserted into the fixing grooves through the connection holes such that the locking pins are decoupled from the fixing grooves, but remain inserted into the connection holes, and a driving device connected to the external cylinder to rotate the intermediate cylinder to allow the shock-absorber to be moved up and down, adjusting a height of a vehicle body.
    Type: Application
    Filed: June 26, 2017
    Publication date: June 21, 2018
    Applicants: Hyundai Motor Company, Kia Motor Company
    Inventors: Sang Hoon LEE, Chang Sin LEE, Youn Hyung CHO
  • Patent number: 9399384
    Abstract: A coupled torsion beam axle suspension system includes a trailing arm connected to each end of a torsion beam. A vehicle body fastener is mounted at a front end of the trailing arm. A spindle bracket is mounted to a rear outer side of the trailing arm. The vehicle body fastener includes a trailing arm bush at a front end of the trailing arm. A bush link is installed in front of and fastened to the trailing arm bush. A lower mounting bush is formed inside the bush link at a front outer side of the trailing arm bush and fastened to a lower side of a vehicle body. An upper mounting bush is mounted at a rear side of the lower mounting bush and move up and down between the bush link and the vehicle body by a cylinder unit disposed between the bush link and the vehicle body.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: July 26, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jaekil Lee, Jin Ho Jung, Youn Hyung Cho, Seong Hee Jeong
  • Publication number: 20160129751
    Abstract: A coupled torsion beam axle suspension system includes a trailing arm connected to each end of a torsion beam. A vehicle body fastener is mounted at a front end of the trailing arm. A spindle bracket is mounted to a rear outer side of the trailing arm. The vehicle body fastener includes a trailing arm bush at a front end of the trailing arm. A bush link is installed in front of and fastened to the trailing arm bush. A lower mounting bush is formed inside the bush link at a front outer side of the trailing arm bush and fastened to a lower side of a vehicle body. An upper mounting bush is mounted at a rear side of the lower mounting bush and move up and down between the bush link and the vehicle body by a cylinder unit disposed between the bush link and the vehicle body.
    Type: Application
    Filed: July 16, 2015
    Publication date: May 12, 2016
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jaekil LEE, Jin Ho JUNG, Youn Hyung CHO, Seong Hee JEONG
  • Patent number: 9290075
    Abstract: A coupled torsion beam axle type suspension system may include trailing arms respectively coupled to opposite ends of a torsion beam, and vehicle body-engaging units, each provided in a front end portion of a respective trailing arm and engaging the respective trailing arm with a vehicle body. Each vehicle body-engaging unit may includes a trailing arm bush that is coupled to a front end portion of the respective trailing arm, a link bracket disposed in front of the trailing arm bush and engaged with the trailing arm bush in a width direction of a vehicle, a vehicle body mounting bush disposed outside of the trailing arm bush and in front of the trailing arm bush, installed in the link bracket, and engaged with a lower part of the vehicle body in a height direction of the vehicle; and a damper connected to the link bracket and the vehicle body abutting the vehicle body mounting bush.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 22, 2016
    Assignee: Hyundai Motor Company
    Inventors: Youn Hyung Cho, Jin-Ho Jung, Seon Pyung Kim, Jaekil Lee, Seong Hee Jeong
  • Patent number: 9150079
    Abstract: A coupled torsion beam axle type suspension system may includes trailing arms respectively coupled to opposite ends of a torsion beam, and vehicle body-engaging units, each provided in a front end portion of a respective trailing arm and engaging the respective trailing arm to a vehicle body. Each vehicle body-engaging unit may include a trailing arm bush, a mounting link, a rotation mounting bush, an upper mounting bush, an adapter, and a stay.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: October 6, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jin-Ho Jung, Seon Pyung Kim, Youn Hyung Cho, Jaekil Lee, Seong Hee Jeong
  • Patent number: 9096111
    Abstract: A coupled torsion beam axle type suspension system may include trailing arms respectively coupled to opposite ends of a torsion beam, a trailing arm bush coupled to a front end portion of the trailing arm, a link bracket mounted in front of the trailing arm bush and engaged therewith in a width direction of a vehicle, and a lower mounting bush mounted outside of the trailing arm bush in front thereof, installed in the link bracket, and engaged with a lower part of the vehicle body in a height direction of the vehicle, and an upper mounting bush offset, with respect to the lower mounting bush, by a predetermined width in the width direction of the vehicle, a predetermined height in a height direction thereof, and a predetermined length in a length direction of the vehicle body.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: August 4, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jaekil Lee, Youn Hyung Cho, Seon Pyung Kim, Dong Min Lim
  • Patent number: 9079474
    Abstract: Disclosed is a coupled torsion beam axle type suspension system. In particular, the coupled torsion beam axle type suspension system includes trailing arms respectively coupled to opposite ends of a torsion beam and a vehicle body-engaging unit provided in a front end portion of each of the trailing arm and engaging the trailing arm to a vehicle body. Each vehicle body-engaging unit includes a trailing arm bushing that is coupled to a front end portion of the trailing arm, a rotation link disposed in front of the trailing arm bushing and engaged thereto in a width direction of a vehicle, and a pair of connection links configured to respectively couple front and outer end portions thereof to the vehicle body, such that an instantaneous rotational center point of the rotation link is formed outside of the rotation link in the width direction of the vehicle.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 14, 2015
    Inventors: Jaekil Lee, Seon Pyung Kim, Youn Hyung Cho, Jin-Ho Jung, Seong Hee Jeong
  • Patent number: 9079473
    Abstract: A coupled torsion beam axle type suspension system (CTBA) may include trailing arms respectively coupled to opposite ends of a torsion beam, and a vehicle body-engaging unit provided in a front end portion of each of the trailing arm and engaging the each of the trailing arms to a vehicle body, wherein each vehicle body-engaging unit includes a trailing arm bush that may be coupled to a front end portion of the trailing arm, a rotation link disposed in front of the trailing arm bush and engaged thereto in a width direction of a vehicle, a slider rotatably connected to a front end portion of the rotation link, and slidable along a length direction of the vehicle body, and a connection link pivotally connecting an outer end portion of the rotation link and the vehicle body.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 14, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jaekil Lee, Seon Pyung Kim, Youn Hyung Cho, Jin-Ho Jung, Seong Hee Jeong
  • Publication number: 20150123370
    Abstract: A coupled torsion beam axle type suspension system (CTBA) may include trailing arms respectively coupled to opposite ends of a torsion beam, and a vehicle body-engaging unit provided in a front end portion of each of the trailing arm and engaging the each of the trailing arms to a vehicle body, wherein each vehicle body-engaging unit includes a trailing arm bush that may be coupled to a front end portion of the trailing arm, a rotation link disposed in front of the trailing arm bush and engaged thereto in a width direction of a vehicle, a slider rotatably connected to a front end portion of the rotation link, and slidable along a length direction of the vehicle body, and a connection link pivotally connecting an outer end portion of the rotation link and the vehicle body.
    Type: Application
    Filed: September 12, 2014
    Publication date: May 7, 2015
    Applicant: Hyundai Motor Company
    Inventors: Jaekil LEE, Seon Pyung Kim, Youn Hyung Cho, Jin-Ho Jung, Seong Hee Jeong
  • Publication number: 20150123368
    Abstract: A coupled torsion beam axle type suspension system may include trailing arms respectively coupled to opposite ends of a torsion beam, and vehicle body-engaging units, each provided in a front end portion of a respective trailing arm and engaging the respective trailing arm with a vehicle body. Each vehicle body-engaging unit may includes a trailing arm bush that is coupled to a front end portion of the respective trailing arm, a link bracket disposed in front of the trailing arm bush and engaged with the trailing arm bush in a width direction of a vehicle, a vehicle body mounting bush disposed outside of the trailing arm bush and in front of the trailing arm bush, installed in the link bracket, and engaged with a lower part of the vehicle body in a height direction of the vehicle; and a damper connected to the link bracket and the vehicle body abutting the vehicle body mounting bush.
    Type: Application
    Filed: September 25, 2014
    Publication date: May 7, 2015
    Applicant: Hyundai Motor Company
    Inventors: Youn Hyung CHO, Jin-Ho JUNG, Seon Pyung KIM, Jaekil LEE, Seong Hee JEONG
  • Publication number: 20150123369
    Abstract: A coupled torsion beam axle type suspension system may includes trailing arms respectively coupled to opposite ends of a torsion beam, and vehicle body-engaging units, each provided in a front end portion of a respective trailing arm and engaging the respective trailing arm to a vehicle body. Each vehicle body-engaging unit may include a trailing arm bush, a mounting link, a rotation mounting bush, an upper mounting bush, an adapter, and a stay.
    Type: Application
    Filed: August 29, 2014
    Publication date: May 7, 2015
    Applicant: Hyundai Motor Company
    Inventors: Jin-Ho JUNG, Seon Pyung KIM, Youn Hyung CHO, Jaekil LEE, Seong Hee JEONG
  • Publication number: 20150123372
    Abstract: Disclosed is a coupled torsion beam axle type suspension system. In particular, the coupled torsion beam axle type suspension system includes trailing arms respectively coupled to opposite ends of a torsion beam and a vehicle body-engaging unit provided in a front end portion of each of the trailing arm and engaging the trailing arm to a vehicle body. Each vehicle body-engaging unit includes a trailing arm bushing that is coupled to a front end portion of the trailing arm, a rotation link disposed in front of the trailing arm bushing and engaged thereto in a width direction of a vehicle, and a pair of connection links configured to respectively couple front and outer end portions thereof to the vehicle body, such that an instantaneous rotational center point of the rotation link is formed outside of the rotation link in the width direction of the vehicle.
    Type: Application
    Filed: September 15, 2014
    Publication date: May 7, 2015
    Inventors: Jaekil Lee, Seon Pyung Kim, Youn Hyung Cho, Jin-Ho Jung, Seong Hee Jeong
  • Publication number: 20150123371
    Abstract: A coupled torsion beam axle type suspension system may include trailing arms respectively coupled to opposite ends of a torsion beam, a trailing arm bush coupled to a front end portion of the trailing arm, a link bracket mounted in front of the trailing arm bush and engaged therewith in a width direction of a vehicle, and a lower mounting bush mounted outside of the trailing arm bush in front thereof, installed in the link bracket, and engaged with a lower part of the vehicle body in a height direction of the vehicle, and an upper mounting bush offset, with respect to the lower mounting bush, by a predetermined width in the width direction of the vehicle, a predetermined height in a height direction thereof, and a predetermined length in a length direction of the vehicle body.
    Type: Application
    Filed: September 12, 2014
    Publication date: May 7, 2015
    Applicant: Hyundai Motor Company
    Inventors: Jaekil Lee, Youn Hyung Cho, Seon Pyung Kim, Dong Min Lim