Patents by Inventor Ho Tae CHUN

Ho Tae CHUN 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: 20240424930
    Abstract: An electrified vehicle may include: a main battery and an auxiliary battery; a motor system including a dual inverter connected to the main battery and driving a motor depending on a motor driving mode, and a transfer switch for switching between first and second driving modes included in the motor driving mode; and a charging switch connected between the motor system and the auxiliary battery, and configured to form a boost charging path connected from the auxiliary battery to the main battery through the motor system when the first driving mode switches to a charging mode while driving.
    Type: Application
    Filed: November 14, 2023
    Publication date: December 26, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Yong Jae LEE, Young Kwan KO, Byung Kwan SON, Jang Yoon JEONG, Ho Tae CHUN, Yoo Jong LEE
  • Patent number: 12143049
    Abstract: A motor driving apparatus includes an inverter that includes a switching element connected between either terminal of a battery and a thermistor insulated from the switching element and that drives a motor through the switching element, a resistor connected between a sensing node to which one end of the thermistor is connected and a terminal of a low source voltage, and a motor controller configured for controlling a relay connected between the battery and the switching element based on a voltage of the sensing node.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: November 12, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Dong Hoon Park, Ki Jong Lee, Ho Tae Chun
  • Publication number: 20240198812
    Abstract: An electric vehicle may include a motor system having a motor and an inverter, a main battery and an auxiliary battery, and a controller which controls the main battery to be charged by voltage step-up of power of the auxiliary battery through the motor system during driving of the electric vehicle, and controls the auxiliary battery to be charged by voltage step-down of power of the main battery through the motor system when charging the main battery through an external power source.
    Type: Application
    Filed: September 18, 2023
    Publication date: June 20, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ho Tae CHUN, Sang Cheol SHIN, Jae Hoon YOON, Ji Woong JANG, Yoo Jong LEE, Jung Hong JOO, Ki Jong LEE, Kang Ho JEONG
  • Publication number: 20240190294
    Abstract: An electrified vehicle includes a motor including a plurality of windings corresponding to each of phases; an inverter including a DC terminal connected to a main battery, and a plurality of legs connected to each end of the windings; a charging switch connected between one electrode of an auxiliary battery and a neutral terminal of the motor, and a controller configured to turn on the charging switch and to apply a DC offset to each of phase currents of the motor having the phases when the charging mode is performed while driving.
    Type: Application
    Filed: July 6, 2023
    Publication date: June 13, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Yong Jae LEE, Young Kwan KO, Byung Kwan SON, Jang Yoon JEONG, Ho Tae CHUN, Yoo Jong LEE
  • Publication number: 20240190274
    Abstract: An electric vehicle includes a main battery and an auxiliary battery, a motor system including a motor and an inverter, and a controller which is configured to control an external voltage to be applied to the main battery or the auxiliary battery according to a level of the external voltage when a charging mode for charging the main battery and the auxiliary battery is performed, wherein the motor system is configured to step down and output a voltage of the main battery to the auxiliary battery when the external voltage is applied to the main battery, and is configured to boost and output a voltage of the auxiliary battery to the main battery when the external voltage is applied to the auxiliary battery.
    Type: Application
    Filed: July 5, 2023
    Publication date: June 13, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Yong Jae LEE, Young Kwan KO, Byung Kwan SON, Jang Yoon JEONG, Ho Tae CHUN, Yoo Jong LEE
  • Patent number: 11936318
    Abstract: Charging system and method using a motor driving system are proposed. The charging system includes a battery, an inverter to which D.C. power stored in the battery is applied, including a plurality of legs each including two switching elements, a motor including a plurality of coils of which first ends are respectively connected to connection nodes of the switching elements of each of the plurality of legs, and second ends are connected to each other to form a neutral point, and an inverter driving part configured to control switching of the switching elements, so that switching speeds of the switching elements are different for each mode of a motor driving mode and a charging mode so as to change magnitude of charging voltage supplied to the neutral point of the motor and to output the charging voltage to the battery.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: March 19, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Ki Jong Lee, Ho Tae Chun
  • Publication number: 20230412112
    Abstract: A motor driving apparatus includes an inverter that includes a switching element connected between either terminal of a battery and a thermistor insulated from the switching element and that drives a motor through the switching element, a resistor connected between a sensing node to which one end of the thermistor is connected and a terminal of a low source voltage, and a motor controller configured for controlling a relay connected between the battery and the switching element based on a voltage of the sensing node.
    Type: Application
    Filed: November 11, 2022
    Publication date: December 21, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Woong JANG, Sang Cheol SHIN, Yoo Jong LEE, Dong Hoon PARK, Ki Jong LEE, Ho Tae CHUN
  • Publication number: 20230006596
    Abstract: Charging system and method using a motor driving system are proposed. The charging system includes a battery, an inverter to which D.C. power stored in the battery is applied, including a plurality of legs each including two switching elements, a motor including a plurality of coils of which first ends are respectively connected to connection nodes of the switching elements of each of the plurality of legs, and second ends are connected to each other to form a neutral point, and an inverter driving part configured to control switching of the switching elements, so that switching speeds of the switching elements are different for each mode of a motor driving mode and a charging mode so as to change magnitude of charging voltage supplied to the neutral point of the motor and to output the charging voltage to the battery.
    Type: Application
    Filed: June 1, 2022
    Publication date: January 5, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Woong JANG, Sang Cheol SHIN, Yoo Jong LEE, Ki Jong LEE, Ho Tae CHUN
  • Patent number: 11394341
    Abstract: An over-temperature protection system and method for a DC capacitor of an inverter are provided. In the over-temperature protection system, a capacitor generates a DC voltage on both terminals thereof. An inverter converts the DC voltage generated on the both terminals of the capacitor into an AC voltage and supplies the AC voltage to a motor. A controller induces a ripple current of the capacitor based on a driving point determined by a torque and a speed of rotation of the motor and determines whether the capacitor is in an over-temperature state based on a totalized value of the ripple current.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: July 19, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Ho Tae Chun
  • Publication number: 20210184622
    Abstract: An over-temperature protection system and method for a DC capacitor of an inverter are provided. In the over-temperature protection system, a capacitor generates a DC voltage on both terminals thereof. An inverter converts the DC voltage generated on the both terminals of the capacitor into an AC voltage and supplies the AC voltage to a motor. A controller induces a ripple current of the capacitor based on a driving point determined by a torque and a speed of rotation of the motor and determines whether the capacitor is in an over-temperature state based on a totalized value of the ripple current.
    Type: Application
    Filed: July 7, 2020
    Publication date: June 17, 2021
    Inventor: Ho Tae Chun
  • Patent number: 10862390
    Abstract: A structure for controlling a Y-capacitor for reducing common mode noise of an electric power conversion system of an environmentally-friendly vehicle. The structure cooperates with an infotainment system for a vehicle and reduces common mode noise of an electric power conversion system. In particular, the structure includes: a switching element connected to a high-voltage power source coupled to the vehicle and to attenuate noise occurring at the time of PWM control; and an electric power conversion part which receives common mode noise occurring from the power source and controls ON/OFF of the switching elements in order to reduce the received common mode noise.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: December 8, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Ho-Tae Chun
  • Publication number: 20200186025
    Abstract: A structure for controlling a Y-capacitor for reducing common mode noise of an electric power conversion system of an environmentally-friendly vehicle. The structure cooperates with an infotainment system for a vehicle and reduces common mode noise of an electric power conversion system. In particular, the structure includes: a switching element connected to a high-voltage power source coupled to the vehicle and to attenuate noise occurring at the time of PWM control; and an electric power conversion part which receives common mode noise occurring from the power source and controls ON/OFF of the switching elements in order to reduce the received common mode noise.
    Type: Application
    Filed: October 14, 2019
    Publication date: June 11, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Ho-Tae CHUN
  • Patent number: 10468994
    Abstract: An inverter for driving a motor of a vehicle mediating between a battery and a driving motor is disclosed. The inverter includes a power storage module, a power module, and a cooling module. The power storage module is configured to be supplied with power from the battery. The power module is configured to be supplied with power from the power storage module to transfer the power to the driving motor. The cooling module is configured to be installed between the power storage module and the power module to simultaneously cool the power storage module and the power module.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: November 5, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ho Tae Chun, Se Min Woo, Chang Han Jung, Yun Ho Kim, Jeong Yun Lee, Seung Hyun Han
  • Patent number: 10150372
    Abstract: Forms of the present disclosure include an input end, and an output end connected to the input end to improve a power factor through the input end. The output end includes non-electrolytic capacitors formed at both sides of an electrolytic capacitor for output, and first inductors formed between the respective non-electrolytic capacitors and the electrolytic capacitor. Therefore, forms of the present disclosure may reduce a ripple current (current stress) at a PFC output end through a CL circuit formed at a left side with respect to the electrolytic capacitor, and reduce an input ripple current (input current stress) of a DC-DC converter through an LC circuit formed at a right side.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: December 11, 2018
    Assignee: Hyundai Motor Company
    Inventors: Ho Tae Chun, Chang Han Jun, Jin Young Yang, Seung Hyun Han
  • Publication number: 20180294739
    Abstract: An inverter for driving a motor of a vehicle mediating between a battery and a driving motor is disclosed. The inverter includes a power storage module, a power module, and a cooling module. The power storage module is configured to be supplied with power from the battery. The power module is configured to be supplied with power from the power storage module to transfer the power to the driving motor. The cooling module is configured to be installed between the power storage module and the power module to simultaneously cool the power storage module and the power module.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ho Tae CHUN, Se Min WOO, Chang Han JUNG, Yun Ho KIM, Jeong Yun LEE, Seung Hyun HAN
  • Publication number: 20180152114
    Abstract: An inverter for driving a motor of a vehicle mediating between a battery and a driving motor is disclosed. The inverter includes a power storage module, a power module, and a cooling module. The power storage module is configured to be supplied with power from the battery. The power module is configured to be supplied with power from the power storage module to transfer the power to the driving motor. The cooling module is configured to be installed between the power storage module and the power module to simultaneously cool the power storage module and the power module.
    Type: Application
    Filed: June 7, 2017
    Publication date: May 31, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ho Tae CHUN, Se Min WOO, Chang Han JUN, Yun Ho KIM, Jeong Yun LEE, Seung Hyun HAN
  • Publication number: 20170144555
    Abstract: Forms of the present disclosure include an input end, and an output end connected to the input end to improve a power factor through the input end. The output end includes non-electrolytic capacitors formed at both sides of an electrolytic capacitor for output, and first inductors formed between the respective non-electrolytic capacitors and the electrolytic capacitor. Therefore, forms of the present disclosure may reduce a ripple current (current stress) at a PFC output end through a CL circuit formed at a left side with respect to the electrolytic capacitor, and reduce an input ripple current (input current stress) of a DC-DC converter through an LC circuit formed at a right side.
    Type: Application
    Filed: March 2, 2016
    Publication date: May 25, 2017
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Ho Tae Chun, Chang Han Jun, Jin Young Yang, Seung Hyun Han
  • Patent number: 9633794
    Abstract: A capacitor module of an inverter for a vehicle includes: a DC-link capacitor configured to be connected in parallel to an input of an inverter between a first high voltage input terminal and a second high voltage input terminal; and a plurality of Y-capacitors configured to be connected in parallel to the inverter. Each of the plurality Y-capacitors includes a first capacitor element connected between the first high voltage input terminal and a ground bus bar and a second capacitor element connected between the second high voltage input terminal and the ground bus bar, and the ground bus bars of the plurality of Y-capacitors are separately provided and the ground holes of the ground bus bars are disposed so as to face each other in a first direction.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 25, 2017
    Assignee: Hyundai Motor Company
    Inventors: Chang Han Jun, Seung Hyun Han, Jeong Yun Lee, Ho Tae Chun
  • Patent number: 9627958
    Abstract: A method for changing a capacitance value of an output capacitor of a power factor corrector (PFC) includes applying AC power to a power conversion circuit. It is sensed whether an instantaneous power failure occurs in the AC power. Output capacitors of the PFC of the power conversion circuit are connected in parallel to each other to increase capacitance values of the output capacitors, when it is sensed that the instantaneous power failure does not occur in the AC power.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: April 18, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Ho Tae Chun, Chang Han Jun, Jeong Yun Lee, Seung Hyun Han, Jin Young Yang, Woo Young Lee
  • Publication number: 20160172111
    Abstract: A capacitor module of an inverter for a vehicle includes: a DC-link capacitor configured to be connected in parallel to an input of an inverter between a first high voltage input terminal and a second high voltage input terminal; and a plurality of Y-capacitors configured to be connected in parallel to the inverter. Each of the plurality Y-capacitors includes a first capacitor element connected between the first high voltage input terminal and a ground bus bar and a second capacitor element connected between the second high voltage input terminal and the ground bus bar, and the ground bus bars of the plurality of Y-capacitors are separately provided and the ground holes of the ground bus bars are disposed so as to face each other in a first direction.
    Type: Application
    Filed: September 4, 2015
    Publication date: June 16, 2016
    Inventors: Chang Han Jun, Seung Hyun Han, Jeong Yun Lee, Ho Tae Chun