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).
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Patent number: 11936318Abstract: 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: GrantFiled: June 1, 2022Date of Patent: March 19, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Ki Jong Lee, Ho Tae Chun
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Publication number: 20230412112Abstract: 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: ApplicationFiled: November 11, 2022Publication date: December 21, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Ji Woong JANG, Sang Cheol SHIN, Yoo Jong LEE, Dong Hoon PARK, Ki Jong LEE, Ho Tae CHUN
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Publication number: 20230006596Abstract: 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: ApplicationFiled: June 1, 2022Publication date: January 5, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Ji Woong JANG, Sang Cheol SHIN, Yoo Jong LEE, Ki Jong LEE, Ho Tae CHUN
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Patent number: 11394341Abstract: 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: GrantFiled: July 7, 2020Date of Patent: July 19, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Ho Tae Chun
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Publication number: 20210184622Abstract: 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: ApplicationFiled: July 7, 2020Publication date: June 17, 2021Inventor: Ho Tae Chun
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Patent number: 10862390Abstract: 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: GrantFiled: October 14, 2019Date of Patent: December 8, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Ho-Tae Chun
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Publication number: 20200186025Abstract: 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: ApplicationFiled: October 14, 2019Publication date: June 11, 2020Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Ho-Tae CHUN
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Patent number: 10468994Abstract: 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: GrantFiled: June 14, 2018Date of Patent: November 5, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Ho Tae Chun, Se Min Woo, Chang Han Jung, Yun Ho Kim, Jeong Yun Lee, Seung Hyun Han
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Patent number: 10150372Abstract: 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: GrantFiled: March 2, 2016Date of Patent: December 11, 2018Assignee: Hyundai Motor CompanyInventors: Ho Tae Chun, Chang Han Jun, Jin Young Yang, Seung Hyun Han
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Publication number: 20180294739Abstract: 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: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Ho Tae CHUN, Se Min WOO, Chang Han JUNG, Yun Ho KIM, Jeong Yun LEE, Seung Hyun HAN
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Publication number: 20180152114Abstract: 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: ApplicationFiled: June 7, 2017Publication date: May 31, 2018Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Ho Tae CHUN, Se Min WOO, Chang Han JUN, Yun Ho KIM, Jeong Yun LEE, Seung Hyun HAN
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Publication number: 20170144555Abstract: 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: ApplicationFiled: March 2, 2016Publication date: May 25, 2017Applicant: HYUNDAI MOTOR COMPANYInventors: Ho Tae Chun, Chang Han Jun, Jin Young Yang, Seung Hyun Han
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Patent number: 9633794Abstract: 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: GrantFiled: September 4, 2015Date of Patent: April 25, 2017Assignee: Hyundai Motor CompanyInventors: Chang Han Jun, Seung Hyun Han, Jeong Yun Lee, Ho Tae Chun
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Patent number: 9627958Abstract: 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: GrantFiled: December 2, 2014Date of Patent: April 18, 2017Assignee: HYUNDAI MOTOR COMPANYInventors: Ho Tae Chun, Chang Han Jun, Jeong Yun Lee, Seung Hyun Han, Jin Young Yang, Woo Young Lee
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Publication number: 20160172111Abstract: 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: ApplicationFiled: September 4, 2015Publication date: June 16, 2016Inventors: Chang Han Jun, Seung Hyun Han, Jeong Yun Lee, Ho Tae Chun
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Publication number: 20150180272Abstract: 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: ApplicationFiled: December 2, 2014Publication date: June 25, 2015Inventors: Ho Tae CHUN, Chang Han JUN, Jeong Yun LEE, Seung Hyun HAN, Jin Young YANG, Woo Young LEE
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Publication number: 20140369077Abstract: A power factor correction (PFC) circuit for a charging converter, includes an input terminal connected with an alternating-current source, and an output terminal connected with a converter. The output terminal is connected to an electrolytic capacitor, such that the PFC circuit is connected in parallel with the converter through the electrolytic capacitor. The front end of the electrolytic capacitor is connected to an LC filter.Type: ApplicationFiled: October 4, 2013Publication date: December 18, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Ho Tae CHUN, Seung Hyun HAN, Jeong Yun LEE, Chang Han JUN, Jong Pil KIM