Patents by Inventor Sung Gyu Ham

Sung Gyu Ham 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 starting fuel cell vehicle in emergency
    Patent number: 8676416
    Abstract: The present invention provides a system and method for starting a fuel cell vehicle in an emergency, which can start the fuel cell by supplying necessary air to the fuel cell even in the event of a failure or malfunction of a high voltage system, the high voltage system including a high voltage DC-DC converter and a high voltage battery which are generally used as a power source of an air blower during start-up of the fuel cell. In particular, the present invention provides a system and method for starting a fuel cell vehicle in an emergency, in which a controller drives an air blower by a voltage output from a low voltage battery to start the fuel cell in an emergency, if it is determined that there is a failure or malfunction in the high voltage system during start-up of a fuel cell system.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: March 18, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Gyu Ham, Kyung Won Suh, Seo Ho Choi
  • SYSTEM AND METHOD FOR STARTING FUEL CELL VEHICLE IN EMERGENCY
    Publication number: 20120053766
    Abstract: The present invention provides a system and method for starting a fuel cell vehicle in an emergency, which can start the fuel cell by supplying necessary air to the fuel cell even in the event of a failure or malfunction of a high voltage system, the high voltage system including a high voltage DC-DC converter and a high voltage battery which are generally used as a power source of an air blower during start-up of the fuel cell. In particular, the present invention provides a system and method for starting a fuel cell vehicle in an emergency, in which a controller drives an air blower by a voltage output from a low voltage battery to start the fuel cell in an emergency, if it is determined that there is a failure or malfunction in the high voltage system during start-up of a fuel cell system.
    Type: Application
    Filed: November 17, 2010
    Publication date: March 1, 2012
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventors: Sung Gyu Ham, Kyung Won Suh, Seo Ho Choi