Patents by Inventor Seong-Wook Hwang
Seong-Wook Hwang 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: 11760336Abstract: A power transmission apparatus of a hybrid vehicle including an engine and a first motor-generator and a second motor-generator includes a compound planetary gear set engaged to a first motor shaft of the first motor-generator, and configured to receive an engine torque from the engine through a one-way clutch, to receive a motor torque of the first motor-generator, and to output an output torque as a combination of the engine torque and the motor torque through a drive gear, a motor shaft gear fixedly connected to a second motor shaft of the second motor-generator, and an output shaft disposed in parallel to and between an engine torque shaft connected to the engine and the second motor shaft connected to the second motor, and gear-meshed with the drive gear and the motor shaft gear respectively through a driven gear.Type: GrantFiled: May 2, 2022Date of Patent: September 19, 2023Assignees: Hyundai Motor Company, Kia CorporationInventor: Seong Wook Hwang
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Publication number: 20230202456Abstract: A power transmission apparatus of a hybrid vehicle including an engine and a first motor-generator and a second motor-generator includes a compound planetary gear set engaged to a first motor shaft of the first motor-generator, and configured to receive an engine torque from the engine through a one-way clutch, to receive a motor torque of the first motor-generator, and to output an output torque as a combination of the engine torque and the motor torque through a drive gear, a motor shaft gear fixedly connected to a second motor shaft of the second motor-generator, and an output shaft disposed in parallel to and between an engine torque shaft connected to the engine and the second motor shaft connected to the second motor, and gear-meshed with the drive gear and the motor shaft gear respectively through a driven gear.Type: ApplicationFiled: May 2, 2022Publication date: June 29, 2023Applicants: Hyundai Motor Company, Kia CorporationInventor: Seong Wook HWANG
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Patent number: 11642955Abstract: A power transmission apparatus of a hybrid vehicle having an engine and first and second motor-generators includes: a planetary gear set disposed on a first motor shaft of the first motor-generator, and including a planet carrier connected to an engine shaft, a sun gear connected to the first motor shaft, and a ring gear connected to a drive gear through a one-way clutch, a second motor shaft gear connected to a second motor shaft of the second motor-generator, an output shaft disposed between the engine shaft and the second motor shaft, and a brake unit to selectively connect the sun gear and the ring gear to a transmission housing. In particular, the output shaft is externally gear-meshed with the drive gear and the second motor shaft gear respectively through a driven gear, and externally gear-meshed with a final reduction gear of the differential gear through an output gear.Type: GrantFiled: March 3, 2022Date of Patent: May 9, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Seong Wook Hwang, Tae Whan Kim, Youngbae Ryu, Jong Hyo Park, Hyung-Min Kim, Juhyeon Park, YongDal Choi, Jaewook Lee, Wonmin Cho
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Patent number: 11642956Abstract: A power transmission apparatus of a hybrid vehicle including an engine and a first motor-generator and a second motor-generator includes a compound planetary gear set engaged to a first motor shaft of the first motor-generator, and configured to receive an engine torque from the engine through a one-way clutch, to receive a motor torque of the first motor-generator, and to output an output torque as a combination of the engine torque and the motor torque through a drive gear, a motor shaft gear connected to a second motor shaft of the second motor-generator, and an output shaft disposed between an engine torque shaft connected to the engine and the second motor shaft connected to the second motor, and gear-engaged with the drive gear and the motor shaft gear respectively through a driven gear, and a brake unit configured to selectively connect one of a first sun gear and a second sun gear of the compound planetary gear set to a transmission housing to act as a fixed element.Type: GrantFiled: June 13, 2022Date of Patent: May 9, 2023Assignees: Hyundai Motor Company, Kia CorporationInventor: Seong Wook Hwang
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Patent number: 11524564Abstract: A power transmission apparatus for a hybrid vehicle of which a second motor shaft gear of a second motor-generator is disposed on one side of a second motor shaft disposed in parallel with the first motor shaft, includes a planetary gear set disposed on the first motor shaft and including one rotation element and the other rotation element are fixedly connected to the engine output shaft and the first motor shaft, respectively, and one remaining rotation element is engaged to the other rotation element, and the planetary gear set in which a drive gear is connected to the remaining rotation element through a one-way clutch, and an output shaft disposed in parallel between the engine output shaft and the second motor shaft, externally gear-engaged with each of the drive gear and the second motor shaft gear through a driven gear fixedly connected to one side.Type: GrantFiled: August 12, 2021Date of Patent: December 13, 2022Assignees: Hyunda Motor Company, Kia CorporationInventors: Seong Wook Hwang, Tae Whan Kim, Youngbae Ryu, Jong Hyo Park, Hyung-Min Kim, Juhyeon Park, Yongdal Choi, Jaewook Lee, Wonmin Cho
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Publication number: 20220194204Abstract: A power transmission apparatus for a hybrid vehicle of which a second motor shaft gear of a second motor-generator is disposed on one side of a second motor shaft disposed in parallel with the first motor shaft, includes a planetary gear set disposed on the first motor shaft and including one rotation element and the other rotation element are fixedly connected to the engine output shaft and the first motor shaft, respectively, and one remaining rotation element is engaged to the other rotation element, and the planetary gear set in which a drive gear is connected to the remaining rotation element through a one-way clutch, and an output shaft disposed in parallel between the engine output shaft and the second motor shaft, externally gear-engaged with each of the drive gear and the second motor shaft gear through a driven gear fixedly connected to one side.Type: ApplicationFiled: August 12, 2021Publication date: June 23, 2022Applicants: Hyunda Motor Company, Kia CorporationInventors: Seong Wook Hwang, Tae Whan Kim, Youngbae Ryu, Jong Hyo Park, Hyung-Min Kim, Juhyeon Park, Yongdal Choi, Jaewook Lee, Wonmin Cho
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Patent number: 11359698Abstract: Provided is a dual clutch transmission. First and second input shafts are mounted concentrically. First and second output shafts are mounted in parallel to the first input shaft and respectively include output gears engaged with a ring gear of a differential. The rotations of first and second gears are restrained by the first input shaft. The rotations of third and fourth gears are restrained by the second input shaft. The rotations of fifth and sixth gears engaged with the second and third gears, respectively, are restrained by the first output shaft. The rotation of a seventh gear engaged with the first gear is restrained by the second output shaft. An eighth gear is engaged with the second gear to be rotatable about the second output shaft. The rotation of a ninth gear engaged with the fourth gear and restrained by the eighth gear is restrained by the second output shaft.Type: GrantFiled: July 2, 2020Date of Patent: June 14, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Soon Ki Eo, Dong Woo Kim, Min Ho Chae, Chon Ok Kim, Seong Wook Hwang, Marcus Meyer, Mirko Leesch, Erik Schreiterer, Rico Resch, Matthias Hoehne, Joerg Mueller
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Patent number: 11331997Abstract: A hybrid power transmission apparatus for a vehicle which changes and outputs torque of an engine and a first motor, includes an input shaft selectively input engine torque through an engine clutch, an output externally engages with a differential final reduction gear through an output gear to output shifted torque, a fixed shifting section including a plurality of external gear sets implementing an engine mode having multiple fixed shifting stages, and a mode shifting section including a planetary gear set having a first rotation element fixedly connected to the input shaft and a third rotation element that is externally gear-engaged with a first motor gear of the first motor via a first gear, and one external gear set configured for power connection between a second rotation element of the planetary gear set and the output shaft.Type: GrantFiled: July 13, 2021Date of Patent: May 17, 2022Assignees: Hyundai Motor Company, Kia CorporationInventors: Dongwoo Kim, Seong Wook Hwang, Kijong Park, Chon Ok Kim, Jong Hyo Park, Juhyeon Park, Sangki Kwak, Seong Kyeong Cheon, Kwang Hyun Won, Soonki Eo, Yong Sug Choi, Ilhan Yoo
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Patent number: 11168765Abstract: A power transmission apparatus for a hybrid electric vehicle may employ two clutches, two brakes, a dog clutch unit to a planetary gear train of having three planetary gear sets, and thereby provide various shifting modes such as an engine mode and a parallel hybrid mode of multiple shift-stages, an electronically-controlled continuously variable shifting mode, and an electric vehicle mode.Type: GrantFiled: April 14, 2020Date of Patent: November 9, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Seong Wook Hwang, Soonki Eo, Ilhan Yoo, Dongwoo Kim, Yong Sug Choi, Jong Hyo Park
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Patent number: 11155155Abstract: A power transmission system of a vehicle may include: a first input shaft selectively connectable to an engine output through a first clutch; a second input shaft selectively connectable to the engine output through a second clutch; a first intermediate shaft; a second intermediate shaft; an output shaft disposed in parallel with and apart from the first intermediate shaft and transmitting power from the first intermediate shaft and the second intermediate shaft to a final reduction gear of a differential apparatus; a motor/generator fixedly connected to any one of the first input shaft and the first intermediate shaft; a continuously variable shifting device operably connecting the first input shaft to the first intermediate shaft; and a plurality of shifting gear sets operably connecting the second input shaft, the first and the second intermediate shaft and the output shaft with each other.Type: GrantFiled: August 23, 2018Date of Patent: October 26, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Wonmin Cho, Seongwook Ji, Hyun Sik Kwon, Seong Wook Hwang, Ki Tae Kim
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Patent number: 11118659Abstract: A power transmission apparatus for a hybrid electric vehicle may include first and second input shafts coaxially mounted and selectively receiving an engine torque, a compound planetary gear set mounted on the second input shaft, receiving a motor torque, and formed by combining two planetary gear sets sharing a sun gear and a planet carrier, an idle shaft mounted in parallel with the first input shaft, a first output shaft mounted in parallel to the first input shaft, receiving a torque from at least the first input shaft, and outputting a torque through the first output gear, a connection element selectively transmitting the engine torque to the compound planetary gear set or the first input shaft, an engagement element selectively connecting the compound planetary gear set to a transmission housing, and a plurality of gear sets mounted on the first and second input shafts and idle shaft and the first output shaft.Type: GrantFiled: May 26, 2020Date of Patent: September 14, 2021Assignees: Hyundai Motor Company, Kia CorporationInventors: Seong Wook Hwang, Soonki Eo, Ilhan Yoo, Dongwoo Kim, Yong Sug Choi, Jong Hyo Park
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Patent number: 11117462Abstract: A power transmission apparatus of a hybrid electric vehicle includes a first input shaft mounted along an axis of an engine shaft and selectively connectable to the engine shaft, a second input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and fixedly connected to a rotor of the first motor-generator, a third input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and selectively connectable to the first input shaft, an intermediate shaft mounted in parallel with the first input shaft, an output shaft mounted in parallel to the first input shaft and outputting a shifted toque, a planetary gear set mounted on the output shaft, having an element fixed to the output shaft and forming a shifted torque, and a plurality of gear sets mounted over the first, second, and third input shafts, the intermediate shaft, and the output shaft.Type: GrantFiled: July 24, 2020Date of Patent: September 14, 2021Assignees: Hyundai Motor Company, Kia CorporationInventors: Seong Wook Hwang, Soonki Eo, Ilhan Yoo, Dongwoo Kim, Yong Sug Choi, Jong Hyo Park
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Patent number: 11105399Abstract: A dual-clutch transmission may include: a first input shaft and a second input shaft mounted concentrically to the first input shaft; a first clutch mounted to the first input shaft to selectively transmit power to the first input shaft; a second clutch mounted to the second input shaft to selectively transmit power to the second input shaft; a first output shaft and a second output shaft mounted in parallel with the first input shaft and the second input shaft; an input shaft connection device provided to switch a power transmitting and a blocking state between the first input shaft and the second input shaft by use of a selection output shaft; a plurality of drive gears mounted on the first input shaft and the second input shaft; and a plurality of driven gears mounted on the first output shaft and the second output shaft engaged with the plurality of drive gears to form each shifting stage.Type: GrantFiled: July 16, 2019Date of Patent: August 31, 2021Assignees: Hyundai Motor Company, Kia CorporationInventors: Soon Ki Eo, Seong Wook Hwang, Ma Ru Kang, Min Ho Chae, Sun Sung Kwon, Chon Ok Kim
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Publication number: 20210246969Abstract: Provided is a dual clutch transmission. First and second input shafts are mounted concentrically. First and second output shafts are mounted in parallel to the first input shaft and respectively include output gears engaged with a ring gear of a differential. The rotations of first and second gears are restrained by the first input shaft. The rotations of third and fourth gears are restrained by the second input shaft. The rotations of fifth and sixth gears engaged with the second and third gears, respectively, are restrained by the first output shaft. The rotation of a seventh gear engaged with the first gear is restrained by the second output shaft. An eighth gear is engaged with the second gear to be rotatable about the second output shaft. The rotation of a ninth gear engaged with the fourth gear and restrained by the eighth gear is restrained by the second output shaft.Type: ApplicationFiled: July 2, 2020Publication date: August 12, 2021Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Soon Ki EO, Dong Woo KIM, Min Ho CHAE, Chon Ok KIM, Seong Wook HWANG, Marcus MEYER, Mirko Leesch, Erik Schreiterer, Rico Resch, Matthias Hoehne, Joerg Mueller
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Patent number: 11067168Abstract: A power transmission apparatus configured for a vehicle, may include a first input shaft selectively connectable to an engine output shaft, a second input shaft mounted coaxial with the first input shaft and selectively connectable to the engine output shaft, a third input shaft external to the second input shaft and selectively connectable to the engine output shaft, a torque mediating shaft mounted coaxial with the first input shaft, first and second intermediate shafts, an idle shaft, a first shifting section including five gear sets, the first and second intermediate shafts, the torque mediating shaft and the idle shaft, a second shifting section including a planetary gear set having a sun gear fixedly connected to the torque mediating shaft, and an output shaft mounted coaxial with and selectively connectable to the first intermediate shaft and outputting a torque from the first and second shifting sections.Type: GrantFiled: October 8, 2019Date of Patent: July 20, 2021Assignees: Hyundai Motor Company, Kia CorporationInventors: Juhyeon Park, Seong Wook Hwang, Seongwook Ji, Ki Tae Kim, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Sun Sung Kwon, Chon Ok Kim
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Patent number: 11060585Abstract: A double clutch transmission (DCT) may include a first input shaft and a second input shaft disposed to or not to receive power from the same power source, respectively; a first output shaft and a second output shaft each disposed in parallel with the first input shaft; a first drive gear disposed on and rotated with the first input shaft; a second drive gear disposed on and rotated with the second input shaft; a first driven gear engaged with the first drive gear and rotatably disposed on a selection output shaft which is one of the first output shaft and the second output shaft; a second driven gear engaged with the second drive gear and rotatably disposed on the selection output shaft; and a sleeve synchronizer selectively connecting between the first driven gear and the second driven gear.Type: GrantFiled: July 16, 2019Date of Patent: July 13, 2021Assignees: Hyundai Motor Company, Kia CorporationInventors: Soon Ki Eo, Seong Wook Hwang, Won Min Cho, Min Ho Chae, Sun Sung Kwon, Chon Ok Kim
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Publication number: 20210206256Abstract: A power transmission apparatus of a hybrid electric vehicle includes a first input shaft mounted along an axis of an engine shaft and selectively connectable to the engine shaft, a second input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and fixedly connected to a rotor of the first motor-generator, a third input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and selectively connectable to the first input shaft, an intermediate shaft mounted in parallel with the first input shaft, an output shaft mounted in parallel to the first input shaft and outputting a shifted toque, a planetary gear set mounted on the output shaft, having an element fixed to the output shaft and forming a shifted torque, and a plurality of gear sets mounted over the first, second, and third input shafts, the intermediate shaft, and the output shaft.Type: ApplicationFiled: July 24, 2020Publication date: July 8, 2021Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Seong Wook HWANG, Soonki EO, Ilhan YOO, Dongwoo KIM, Yong Sug CHOI, Jong Hyo PARK
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Publication number: 20210207688Abstract: A power transmission apparatus for a hybrid electric vehicle may include first and second input shafts coaxially mounted and selectively receiving an engine torque, a compound planetary gear set mounted on the second input shaft, receiving a motor torque, and formed by combining two planetary gear sets sharing a sun gear and a planet carrier, an idle shaft mounted in parallel with the first input shaft, a first output shaft mounted in parallel to the first input shaft, receiving a torque from at least the first input shaft, and outputting a torque through the first output gear, a connection element selectively transmitting the engine torque to the compound planetary gear set or the first input shaft, an engagement element selectively connecting the compound planetary gear set to a transmission housing, and a plurality of gear sets mounted on the first and second input shafts and idle shaft and the first output shaft.Type: ApplicationFiled: May 26, 2020Publication date: July 8, 2021Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Seong Wook HWANG, Soonki EO, Ilhan YOO, Dongwoo KIM, Yong Sug CHOI, Jong Hyo PARK
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Patent number: 11052750Abstract: A power transmission apparatus of a hybrid electric vehicle using an engine and a motor/generator as power sources includes: a first input shaft selectively connected to a rotor of the motor/generator; a second input shaft disposed external to the first input shaft, and selectively connected to the rotor; an idle shaft disposed in parallel with the first input shaft; an intermediate shaft shifting rotational power transmitted from the first input shaft to the idle shaft; a first output shaft shifting and outputting rotational power transmitted from the second input shaft and the idle shaft; a second output shaft shifting and outputting rotational power transmitted from the first input shaft; and a plurality of gear sets shifting the rotational power input through the first and second input shafts.Type: GrantFiled: February 28, 2020Date of Patent: July 6, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Seong Wook Hwang, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Soonki Eo, Wonmin Cho, Ilhan Yoo, Juhyeon Park, Dongwoo Kim, Hye Jin Lim, Dong Hwan Hwang, Jong Hyo Park
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Publication number: 20210172503Abstract: A power transmission apparatus for a hybrid electric vehicle may employ two clutches, two brakes, a dog clutch unit to a planetary gear train of having three planetary gear sets, and thereby provide various shifting modes such as an engine mode and a parallel hybrid mode of multiple shift-stages, an electronically-controlled continuously variable shifting mode, and an electric vehicle mode.Type: ApplicationFiled: April 14, 2020Publication date: June 10, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Seong Wook HWANG, Soonki EO, Ilhan YOO, Dongwoo KIM, Yong Sug CHOI, Jong Hyo PARK