Patents by Inventor Won-Hoe LEE

Won-Hoe LEE 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).

  • Publication number: 20250149907
    Abstract: Disclosed is a battery management apparatus capable of effectively reducing the current consumption of a component for waking up a microcontroller unit. The battery management apparatus includes a wake-up unit, a first power supply path, a first regulator, a first switching element, a feedback module, and a microcontroller unit configured to convert a sleep mode to a wake-up mode by receiving a wake-up signal from the wake-up unit and connected to the feedback module to turn off the first switching element.
    Type: Application
    Filed: January 9, 2025
    Publication date: May 8, 2025
    Applicant: LG Energy Solution, Ltd
    Inventors: Won-Hoe Lee, Jeong-Wook Kim, Jun-Suk Kim, Seung-Jin Noh, Hyo-Seong An, Seog-Jin Yoon
  • Patent number: 12230989
    Abstract: Disclosed is a battery management apparatus capable of effectively reducing the current consumption of a component for waking up a microcontroller unit. The battery management apparatus includes a wake-up unit, a first power supply path, a first regulator, a first switching element, a feedback module, and a microcontroller unit configured to convert a sleep mode to a wake-up mode by receiving a wake-up signal from the wake-up unit and connected to the feedback module to turn off the first switching element.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: February 18, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Won-Hoe Lee, Jeong-Wook Kim, Jun-Suk Kim, Seung-Jin Noh, Hyo-Seong An, Seog-Jin Yoon
  • Patent number: 12212176
    Abstract: A battery management system according to the present disclosure is for a battery connected in parallel to a smoothing capacitor through a high side power line and a low side power line. The battery management system includes a discharge control switch connected between a first node and a second node of the low side power line, a temperature sensing circuit including a thermistor, wherein a first terminal of the thermistor is connected to the first node, a precharge switch connected to a precharge power line between a second terminal of the thermistor to the second node, and a control unit. The control unit is configured to turn off the discharge control switch and turn on the precharge switch, for precharging of the smoothing capacitor, when the control unit receives a key-on signal.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: January 28, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Seung-Jin Noh, Seog-Jin Yoon, Won-Hoe Lee
  • Patent number: 12135356
    Abstract: The present disclosure relates to an apparatus and method for diagnosing a state of a battery pack, and more particularly, to an apparatus and method for diagnosing a state of a battery pack based on a SOC of a battery module included in the battery pack. According to the present disclosure, since the SOC of the battery module corresponding to an induced abnormal situation is estimated and the state of each battery module is diagnosed based on the estimated SOC, a risk factor that may occur in the battery module may be diagnosed in advance.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: November 5, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong-Chun Lee, Won-Hoe Lee, Seog-Jin Yoon, Suk-Hoon Lee
  • Publication number: 20220337074
    Abstract: Disclosed is a battery management apparatus capable of effectively reducing the current consumption of a component for waking up a microcontroller unit. The battery management apparatus includes a wake-up unit, a first power supply path, a first regulator, a first switching element, a feedback module, and a microcontroller unit configured to convert a sleep mode to a wake-up mode by receiving a wake-up signal from the wake-up unit and connected to the feedback module to turn off the first switching element.
    Type: Application
    Filed: December 24, 2020
    Publication date: October 20, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Won-Hoe Lee, Jeong-Wook Kim, Jun-Suk Kim, Seung-Jin Noh, Hyo-Seong An, Seog-Jin Yoon
  • Publication number: 20220294249
    Abstract: A battery management system according to the present disclosure is for a battery connected in parallel to a smoothing capacitor through a high side power line and a low side power line. The battery management system includes a discharge control switch connected between a first node and a second node of the low side power line, a temperature sensing circuit including a thermistor, wherein a first terminal of the thermistor is connected to the first node, a precharge switch connected to a precharge power line between a second terminal of the thermistor to the second node, and a control unit. The control unit is configured to turn off the discharge control switch and turn on the precharge switch, for precharging of the smoothing capacitor, when the control unit receives a key-on signal.
    Type: Application
    Filed: November 19, 2020
    Publication date: September 15, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seung-Jin Noh, Seog-Jin Yoon, Won-Hoe Lee
  • Publication number: 20220069371
    Abstract: The present disclosure relates to an apparatus and method for diagnosing a state of a battery pack, and more particularly, to an apparatus and method for diagnosing a state of a battery pack based on a SOC of a battery module included in the battery pack. According to the present disclosure, since the SOC of the battery module corresponding to an induced abnormal situation is estimated and the state of each battery module is diagnosed based on the estimated SOC, a risk factor that may occur in the battery module may be diagnosed in advance.
    Type: Application
    Filed: July 10, 2020
    Publication date: March 3, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Dong-Chun LEE, Won-Hoe LEE, Seog-Jin YOON, Suk-Hoon LEE