Patents by Inventor Bum Kyo Jung

Bum Kyo Jung 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).

  • Power relay assembly and vehicle comprising the same and control method of power relay assembly
    Patent number: 11702060
    Abstract: A power relay assembly is provided and includes a first relay that is connected to a positive end of a battery and a second relay that is connected to a negative end of the battery and connected to the first relay via a DC capacitor. A first Field Effect Transistor (FET) is connected in parallel with the first relay and a second FET is connected in parallel with the first relay and connected in series with the first FET. A voltage control circuit is configured to adjust a voltage of the first FET with a first voltage or adjust a voltage of the first FET with a second voltage lower than the magnitude of the first voltage.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: July 18, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Yura Corporation Co., Ltd.
    Inventors: Sangho Shin, Haesung Nam, Bum-Kyo Jung, Dae-Hwan Kwon
  • High-voltage relay system for vehicle and diagnostic method therefor
    Patent number: 11571988
    Abstract: A high-voltage relay system for a vehicle is provided. The system includes a relay, a first contact part positioned between a battery and a power converter, a voltage application unit, and a second contact part positioned between the voltage application unit and the ground. A first resistor is connected, at a first end thereof, in series to a second end of the second contact part and connected, at a second end thereof, to the ground. A controller operates the relay in response to an ON/OFF control signal to short-circuit or open the contacts at both ends of the first contact part or the contacts at both ends of the second and determines whether the relay fails based on the type of the ON/OFF control signal and the voltage value between both ends of the first resistor.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: February 7, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Yura Corporation Co., Ltd.
    Inventors: Sang Ho Shin, Hae Sung Nam, Bum Kyo Jung, Ho Kyung Kim
  • POWER RELAY ASSEMBLY AND VEHICLE COMPRISING THE SAME AND CONTROL METHOD OF POWER RELAY ASSEMBLY
    Publication number: 20210276532
    Abstract: A power relay assembly is provided and includes a first relay that is connected to a positive end of a battery and a second relay that is connected to a negative end of the battery and connected to the first relay via a DC capacitor. A first Field Effect Transistor (FET) is connected in parallel with the first relay and a second FET is connected in parallel with the first relay and connected in series with the first FET. A voltage control circuit is configured to adjust a voltage of the first FET with a first voltage or adjust a voltage of the first FET with a second voltage lower than the magnitude of the first voltage.
    Type: Application
    Filed: October 5, 2020
    Publication date: September 9, 2021
    Inventors: Sangho Shin, Haesung Nam, Bum-Kyo Jung, Dae-Hwan Kwon
  • HIGH-VOLTAGE RELAY SYSTEM FOR VEHICLE AND DIAGNOSTIC METHOD THEREFOR
    Publication number: 20200298725
    Abstract: A high-voltage relay system for a vehicle is provided. The system includes a relay, a first contact part positioned between a battery and a power converter, a voltage application unit, and a second contact part positioned between the voltage application unit and the ground. A first resistor is connected, at a first end thereof, in series to a second end of the second contact part and connected, at a second end thereof, to the ground. A controller operates the relay in response to an ON/OFF control signal to short-circuit or open the contacts at both ends of the first contact part or the contacts at both ends of the second and determines whether the relay fails based on the type of the ON/OFF control signal and the voltage value between both ends of the first resistor.
    Type: Application
    Filed: September 10, 2019
    Publication date: September 24, 2020
    Inventors: Sang Ho Shin, Hae Sung Nam, Bum Kyo Jung, Ho Kyung Kim