Patents by Inventor Won Seok Jin

Won Seok Jin 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).

  • System and method for controlling low voltage DC converter of fuel cell vehicle
    Patent number: 11565608
    Abstract: A system and method are arranged to control a low voltage DC converter of a fuel cell vehicle, in which, although a CAN communication timeout where the low voltage DC converter does not receive an off command from a vehicle control unit or a CAN communication failure occurs, when an output current of the low voltage DC converter is lowered by at least a predetermined value, the low voltage DC converter is turned off by itself by determining that a post-treatment operation of a fuel cell system is completed, and after the low voltage DC converter is turned off, a relay of a high voltage battery is opened, thereby preventing the relay of the high voltage battery from fusing.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 31, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Sang Kyu Lee, Tae Woo Kim, Se La Lim, Won Seok Jin
  • SYSTEM AND METHOD FOR CONTROLLING LOW VOLTAGE DC CONVERTER OF FUEL CELL VEHICLE
    Publication number: 20220305956
    Abstract: A system and method are arranged to control a low voltage DC converter of a fuel cell vehicle, in which, although a CAN communication timeout where the low voltage DC converter does not receive an off command from a vehicle control unit or a CAN communication failure occurs, when an output current of the low voltage DC converter is lowered by at least a predetermined value, the low voltage DC converter is turned off by itself by determining that a post-treatment operation of a fuel cell system is completed, and after the low voltage DC converter is turned off, a relay of a high voltage battery is opened, thereby preventing the relay of the high voltage battery from fusing.
    Type: Application
    Filed: August 24, 2021
    Publication date: September 29, 2022
    Inventors: Sang Kyu Lee, Tae Woo Kim, Se La Lim, Won Seok Jin