Patents by Inventor Byoung Hoon Choi
Byoung Hoon Choi 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: 11897365Abstract: A system for controlling electric power of a vehicle having a fuel cell is provided. The system includes a fuel cell that generates electric energy by receiving fuel and oxidizing gas and a battery that receives the electric energy of the fuel cell to charge or discharge the battery for supplying the electric energy. A sensor sense a driving state of the vehicle. A controller controls charging or discharging of the battery based on the driving state sensed by the sensor.Type: GrantFiled: September 28, 2020Date of Patent: February 13, 2024Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Seung Yoon Lee, Byoung Hoon Choi, Jeong Kyu Park, Jae Hoon Jeong, Sae Byeok Seung, Hyo Jun Kim, Dong Hoon Kim, Sang Chul Yeom
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Patent number: 11606006Abstract: A system for overcooling a drive motor and a method for controlling the same may include a first cooling loop in which a first coolant circulate, the first coolant being in a heat exchange with a power electronics (PE) part and a drive motor cooler mounted in the first cooling line and configured to cool cooling oil supplied to the drive motor fluidically connected to the drive motor cooler; a second cooling loop disposed independently from the first cooling loop, wherein a second coolant circulates in the second cooling loop, the second coolant being in a heat exchange with a battery module and a battery chiller mounted in the second cooling loop; and a switch unit configured to selectively shift a flow path of the second coolant such that the second coolant is in a heat exchange with the drive motor cooler.Type: GrantFiled: June 11, 2021Date of Patent: March 14, 2023Assignees: Hyundai Motor Company, Kia CorporationInventors: Byoung Hoon Choi, Sung Hyun Ahn, Hee Ra Lee, Jong Hyun Kim
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Patent number: 11312263Abstract: A method for controlling an operation of a fuel cell of a fuel cell vehicle is provided. The method includes detecting a state of charge (SOC) of a high voltage battery and determining whether the detected SOC of the high voltage battery is within or beyond a preset range from a minimum recommended SOC to a maximum recommended SOC. Power generation of the fuel cell is performed or stopped by comparing a required current of the vehicle with a preset current value required to enter a fuel-cell stop mode in which the power generation of the fuel cell is stopped and a preset current value required to release the fuel-cell stop mode.Type: GrantFiled: March 3, 2020Date of Patent: April 26, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Seung Yoon Lee, Jeong Kyu Park, Sae Byeok Seung, Byoung Hoon Choi, Sang Chul Yeom
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Publication number: 20220115930Abstract: A system for overcooling a drive motor and a method for controlling the same may include a first cooling loop in which a first coolant circulate, the first coolant being in a heat exchange with a power electronics (PE) part and a drive motor cooler mounted in the first cooling line and configured to cool cooling oil supplied to the drive motor fluidically connected to the drive motor cooler; a second cooling loop disposed independently from the first cooling loop, wherein a second coolant circulates in the second cooling loop, the second coolant being in a heat exchange with a battery module and a battery chiller mounted in the second cooling loop; and a switch unit configured to selectively shift a flow path of the second coolant such that the second coolant is in a heat exchange with the drive motor cooler.Type: ApplicationFiled: June 11, 2021Publication date: April 14, 2022Applicants: Hyundai Motor Company, Kia CorporationInventors: Byoung Hoon CHOI, Sung Hyun AHN, Hee Ra LEE, Jong Hyun KIM
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Publication number: 20220109350Abstract: In a motor cooling structure including a rotor connected to a rotary shaft, a stator disposed on the rotor and including a stator core and coils, and a housing surrounding the rotor and the stator, the motor cooling structure includes: a first cover provided to extend along the inner circumferential surface of the coil between the stator core and the coils disposed on both sides of the stator core and a second cover disposed on the outsides of the coils with respect to the stator core and provided to extend along the inner circumferential surfaces of the coils, and the oil for cooling a motor through a chamber and a channel flows.Type: ApplicationFiled: July 22, 2021Publication date: April 7, 2022Inventors: Shin Jong Kim, Byoung Hoon Choi, Jong Hyun Kim
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Patent number: 11280230Abstract: An electric oil pump system integrated with a heat exchanger capable of reducing installation space and cost may include: an the electric oil pump including a motor and a pumping part operated by power of the motor to suck and send oil under pressurizing to an oil-used part; and a heat exchanger to exchange heat between the pressurized oil sent by the electric oil pump and coolant cooled at a radiator while the coolant and the pressurized oil pass through the heat exchanger. In particular, the heat exchanger is directly coupled to the electric oil pump and the oil-used part, respectively, and integrated with each other.Type: GrantFiled: November 9, 2018Date of Patent: March 22, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sung Hyun Ahn, Byoung Hoon Choi, Seung Jae Kang, Hak Sung Lee, Yeon Ho Kim, Jong Hyun Kim, Tae Ho Kim
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Patent number: 11226030Abstract: A motor apparatus having an oil circulation structure may collect churning oil inside a housing and efficiently disperses the collected oil in each drive system, smoothly performing cooling and lubrication of the drive system including a motor and a reduction gear. Furthermore, even under low or high load conditions of the drive system, the oil level inside the housing is maintained at a constant level to maintain desired lubrication and cooling performance.Type: GrantFiled: September 24, 2020Date of Patent: January 18, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Shin Jong Kim, Sang Jin Park, Seung Jae Kang, Jong Hyun Kim, Byoung Hoon Choi
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Publication number: 20210387545Abstract: A system for controlling electric power of a vehicle having a fuel cell is provided. The system includes a fuel cell that generates electric energy by receiving fuel and oxidizing gas and a battery that receives the electric energy of the fuel cell to charge or discharge the battery for supplying the electric energy. A sensor sense a driving state of the vehicle. A controller controls charging or discharging of the battery based on the driving state sensed by the sensor.Type: ApplicationFiled: September 28, 2020Publication date: December 16, 2021Inventors: Seung Yoon Lee, Byoung Hoon Choi, Jeong Kyu Park, Jae Hoon Jeong, Sae Byeok Seung, Hyo Jun Kim, Dong Hoon Kim, Sang Chul Yeom
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Publication number: 20210388895Abstract: A motor apparatus having an oil circulation structure may collect churning oil inside a housing and efficiently disperses the collected oil in each drive system, smoothly performing cooling and lubrication of the drive system including a motor and a reduction gear. Furthermore, even under low or high load conditions of the drive system, the oil level inside the housing is maintained at a constant level to maintain desired lubrication and cooling performance.Type: ApplicationFiled: September 24, 2020Publication date: December 16, 2021Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Shin Jong Kim, Sang Jin Park, Seung Jae Kang, Jong Hyun Kim, Byoung Hoon Choi
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Patent number: 11161341Abstract: An inkjet printing system includes an inkjet head including first to n-th nozzles disposed in a row in a first direction, where the inkjet head discharges an ink onto a pixel printing target substrate, a transfer part which transfers the pixel printing target substrate toward the inkjet head in a second direction perpendicular to the first direction, a discharge waveform signal generator which generates different discharge waveform signals based on a pixel interval in the pixel printing target substrate and a transferring speed of the pixel printing target substrate, and a discharge waveform signal selector which selects first to n-th discharge waveform signals among the plurality of different discharge waveform signals based on discharge position error data respectively corresponding to the first to n-th nozzles, such that the first to n-th discharge waveform signals are selectively provided to each of the first to n-th nozzles.Type: GrantFiled: April 22, 2020Date of Patent: November 2, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hong Gi Min, Dong Sul Kim, Byoung-Hoon Choi
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Publication number: 20210078440Abstract: A method for controlling an operation of a fuel cell of a fuel cell vehicle is provided. The method includes detecting a state of charge (SOC) of a high voltage battery and determining whether the detected SOC of the high voltage battery is within or beyond a preset range from a minimum recommended SOC to a maximum recommended SOC. Power generation of the fuel cell is performed or stopped by comparing a required current of the vehicle with a preset current value required to enter a fuel-cell stop mode in which the power generation of the fuel cell is stopped and a preset current value required to release the fuel-cell stop mode.Type: ApplicationFiled: March 3, 2020Publication date: March 18, 2021Inventors: Seung Yoon Lee, Jeong Kyu Park, Sae Byeok Seung, Byoung Hoon Choi, Sang Chul Yeom
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Publication number: 20200384761Abstract: An inkjet printing system includes an inkjet head including first to n-th nozzles disposed in a row in a first direction, where the inkjet head discharges an ink onto a pixel printing target substrate, a transfer part which transfers the pixel printing target substrate toward the inkjet head in a second direction perpendicular to the first direction, a discharge waveform signal generator which generates different discharge waveform signals based on a pixel interval in the pixel printing target substrate and a transferring speed of the pixel printing target substrate, and a discharge waveform signal selector which selects first to n-th discharge waveform signals among the plurality of different discharge waveform signals based on discharge position error data respectively corresponding to the first to n-th nozzles, such that the first to n-th discharge waveform signals are selectively provided to each of the first to n-th nozzles.Type: ApplicationFiled: April 22, 2020Publication date: December 10, 2020Inventors: Hong Gi MIN, Dong Sul KIM, Byoung-Hoon CHOI
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Patent number: 10686133Abstract: A display panel manufacturing system includes a substrate providing module configured to provide a substrate including an active region on which thin-film transistors are disposed, and a peripheral region adjacent to the active region, a test substrate providing module configured to provide a test substrate, an organic film forming module configured to form an ink pattern on each of the substrate and the test substrate, the organic film forming module including a plurality of heads, each of which is configured to drop an ink, an offset inspection module configured to inspect the ink pattern on the substrate, a pattern inspection module configured to inspect the ink pattern on the test substrate, and a droplet inspection module configured to inspect an ink, which is dropped from a head selected from the heads.Type: GrantFiled: October 29, 2019Date of Patent: June 16, 2020Assignee: Samsung Display Co., Ltd.Inventors: Byungchul Lee, Heungcheol Jeong, Myungsoo Huh, Jongsung Kim, Byoung-hoon Choi
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Publication number: 20200066991Abstract: A display panel manufacturing system includes a substrate providing module configured to provide a substrate including an active region on which thin-film transistors are disposed, and a peripheral region adjacent to the active region, a test substrate providing module configured to provide a test substrate, an organic film forming module configured to form an ink pattern on each of the substrate and the test substrate, the organic film forming module including a plurality of heads, each of which is configured to drop an ink, an offset inspection module configured to inspect the ink pattern on the substrate, a pattern inspection module configured to inspect the ink pattern on the test substrate, and a droplet inspection module configured to inspect an ink, which is dropped from a head selected from the heads.Type: ApplicationFiled: October 29, 2019Publication date: February 27, 2020Inventors: Byungchul LEE, Heungcheol JEONG, Myungsoo HUH, Jongsung KIM, Byoung-hoon CHOI
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Patent number: 10497873Abstract: A display panel manufacturing system includes a substrate providing module configured to provide a substrate including an active region on which thin-film transistors are disposed, and a peripheral region adjacent to the active region, a test substrate providing module configured to provide a test substrate, an organic film forming module configured to form an ink pattern on each of the substrate and the test substrate, the organic film forming module including a plurality of heads, each of which is configured to drop an ink, an offset inspection module configured to inspect the ink pattern on the substrate, a pattern inspection module configured to inspect the ink pattern on the test substrate, and a droplet inspection module configured to inspect an ink, which is dropped from a head selected from the heads.Type: GrantFiled: June 4, 2018Date of Patent: December 3, 2019Assignee: Samsung Display Co., Ltd.Inventors: Byungchul Lee, Heungcheol Jeong, Myungsoo Huh, Jongsung Kim, Byoung-hoon Choi
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Publication number: 20190323391Abstract: An electric oil pump system integrated with a heat exchanger capable of reducing installation space and cost may include: an the electric oil pump including a motor and a pumping part operated by power of the motor to suck and send oil under pressurizing to an oil-used part; and a heat exchanger to exchange heat between the pressurized oil sent by the electric oil pump and coolant cooled at a radiator while the coolant and the pressurized oil pass through the heat exchanger. In particular, the heat exchanger is directly coupled to the electric oil pump and the oil-used part, respectively, and integrated with each other.Type: ApplicationFiled: November 9, 2018Publication date: October 24, 2019Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sung Hyun AHN, Byoung Hoon CHOI, Seung Jae KANG, Hak Sung LEE, Yeon Ho KIM, Jong Hyun KIM, Tae Ho KIM
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Patent number: 10447188Abstract: A method and system of controlling driving of a brushless DC electric motor (BLDC) of an electric water pump are provided. The method includes estimating an initial position of a rotor using a magnitude of a current detected in a three-phase coil wound on a stator and converting a current magnitude that reflects a rotational angle of the rotor with respect to the initial position into two direct currents based on the three-phase current. The converted direct currents are output and a rotational angle, a speed, a flux and a torque of the rotor are acquired based on values of the three-phase current, a voltage generated according to flow of the three-phase current, a predetermined coil resistance, and an inductance input. A speed of the motor is then adjusted based on the acquired rotational angle, speed, flux, and torque of the rotor.Type: GrantFiled: December 8, 2017Date of Patent: October 15, 2019Assignees: Hyundai Motor Company, Kia Motors Corporation, Myung Hwa Ind. Co., Ltd.Inventors: Dong Soo Shim, Yeon Ho Kim, Byoung Hoon Choi, Jae Shin Yi, Hyeong Geun Song, Geun Oh Dong
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Publication number: 20190103559Abstract: A display panel manufacturing system includes a substrate providing module configured to provide a substrate including an active region on which thin-film transistors are disposed, and a peripheral region adjacent to the active region, a test substrate providing module configured to provide a test substrate, an organic film forming module configured to form an ink pattern on each of the substrate and the test substrate, the organic film forming module including a plurality of heads, each of which is configured to drop an ink, an offset inspection module configured to inspect the ink pattern on the substrate, a pattern inspection module configured to inspect the ink pattern on the test substrate, and a droplet inspection module configured to inspect an ink, which is dropped from a head selected from the heads.Type: ApplicationFiled: June 4, 2018Publication date: April 4, 2019Inventors: Byungchul LEE, Heungcheol Jeong, Myungsoo Huh, Jongsung Kim, Byoung-hoon Choi
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Publication number: 20180167005Abstract: A method and system of controlling driving of a brushless DC electric motor (BLDC) of an electric water pump are provided. The method includes estimating an initial position of a rotor using a magnitude of a current detected in a three-phase coil wound on a stator and converting a current magnitude that reflects a rotational angle of the rotor with respect to the initial position into two direct currents based on the three-phase current. The converted direct currents are output and a rotational angle, a speed, a flux and a torque of the rotor are acquired based on values of the three-phase current, a voltage generated according to flow of the three-phase current, a predetermined coil resistance, and an inductance input. A speed of the motor is then adjusted based on the acquired rotational angle, speed, flux, and torque of the rotor.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Inventors: Dong Soo Shim, Yeon Ho Kim, Byoung Hoon Choi, Jae Shin Yi, Hyeong Geun Song, Geun Oh Dong
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Patent number: 9882517Abstract: A method and a system for controlling a motor are provided to allow for a limp home function when an error occurs in a Hall effect sensor that detects the position of a rotor while operating a motor used for an automotive electric water pump. The method includes determining an output error of a Hall effect sensor and stopping adjustment a speed of the motor based on output of the Hall effect sensor, in response to detecting an output error of the Hall effect sensor. Additionally, the method includes adjusting the speed of the motor based on a counter electromotive force generated by a plurality of stator coils having different phases in the motor.Type: GrantFiled: July 8, 2016Date of Patent: January 30, 2018Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Dong Soo Shim, Jae Shin Yi, Byoung Hoon Choi, Yeon Ho Kim