Patents by Inventor Se Hoon SONG

Se Hoon SONG 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: 11990655
    Abstract: A fuel cell system includes a purge valve that discharges hydrogen on a hydrogen supply line passing a fuel cell stack, an operation state monitoring device that monitors an operation state of the fuel cell stack, and a controller that determines a purge frequency based on the operation state and controls the purge valve with reference to the determined purge frequency.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: May 21, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Se Hoon Song, Sun Ho Lee
  • Publication number: 20240047721
    Abstract: A fuel cell system of this disclosure includes a fuel cell stack; a water supply unit to selectively supply cooling water or heated water to a cooler of the fuel cell stack, and including a heater for heating the cooling water; an air cutoff valve to supply air to an anode of the fuel cell stack and drain a residue from the anode; an anode pressure regulator to drain the residue from the air cutoff valve and control a pressure of the anode; sensors to measure an operating temperature of the fuel cell stack, an outside air temperature, and an atmospheric pressure; and a controller to calculate a target pressure for the anode, control the air cut-off valve, control the anode pressure regulator, and stop an operation of the heater when a stack voltage of the fuel cell stack is lower than a predetermined reference voltage.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 8, 2024
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventor: Se Hoon SONG
  • Publication number: 20230411656
    Abstract: A fuel cell system includes a purge valve that discharges hydrogen on a hydrogen supply line passing a fuel cell stack, an operation state monitoring device that monitors an operation state of the fuel cell stack, and a controller that determines a purge frequency based on the operation state and controls the purge valve with reference to the determined purge frequency.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 21, 2023
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Se Hoon SONG, Sun Ho LEE
  • Patent number: 11784336
    Abstract: A fuel cell system includes a first converter to convert power, which is output from a fuel cell stack or a battery, into power in a specific level, a second converter to convert power which is input to or output from the battery, a power relay assembly to control power flow between a super capacitor and the first converter, and a controller to control outputs of the first converter and the second converter, depending on a starting state or an operating state of the fuel cell system, and to control an operation of the power relay assembly.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 10, 2023
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Se Hoon Song, Young Hwang Kim, Jae Sung Choi
  • Publication number: 20230133894
    Abstract: A fuel cell system includes a first converter to convert power, which is output from a fuel cell stack or a battery, into power in a specific level, a second converter to convert power which is input to or output from the battery, a power relay assembly to control power flow between a super capacitor and the first converter, and a controller to control outputs of the first converter and the second converter, depending on a starting state or an operating state of the fuel cell system, and to control an operation of the power relay assembly.
    Type: Application
    Filed: December 30, 2021
    Publication date: May 4, 2023
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Se Hoon SONG, Young Hwang KIM, Jae Sung CHOI
  • Publication number: 20220416277
    Abstract: The present disclosure relates to a fuel cell temperature management device and a fuel cell system using the same, the device including a temperature control valve that sets, to a first path or a second path, a circulation path of a cooling water passing through a fuel cell stack, and a controller that controls the temperature control valve based on a temperature of the cooling water.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 29, 2022
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventor: Se Hoon SONG
  • Publication number: 20220364682
    Abstract: An apparatus for controlling a fuel tank according to an embodiment of the present disclosure may include a fuel tank having a plurality of volumes, and a controller that controls a charging state of a fuel charged in the fuel tank and selectively controls use of the fuel charged in the plurality of volumes based on an amount of the fuel used and a state of the fuel tank.
    Type: Application
    Filed: April 6, 2022
    Publication date: November 17, 2022
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Yong Hee LEE, Se Hoon SONG