Patents by Inventor Tae Won Hwang
Tae Won 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: 11845418Abstract: A method of controlling an engine and a transmission of a vehicle, which is a hybrid vehicle, includes the following steps that are carried out by a controller: determining whether the vehicle is under NCC (Neutral Coasting Control), determining whether an engine RPM reaches an engine RPM control point if it is determined that the NCC is in effect, determining an RPM and a gear stage of a vehicle transmission if it is determined that the engine RPM has reached the engine RPM control point, determining an engine target RPM of the vehicle, determining whether the engine RPM has reached a mild hybrid starter & generator (MHSG) control point, and controlling the MHSG according to a condition if it is determined that the engine RPM has reached the MHSG control point.Type: GrantFiled: November 19, 2020Date of Patent: December 19, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jun Sung Park, Jaebin Lee, Tae Won Hwang
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Patent number: 11724685Abstract: A method of controlling an engine and a transmission of a vehicle includes: determining, by a controller, whether the engine is restarted after releasing the vehicle's SSC (Start & Stop coasting) or whether the vehicle is accelerating during NCC (Neutral Coasting control), determining an RPM and gear stage of the transmission if it is determined that the engine is restarted after releasing the vehicle's SSC or the vehicle is accelerating during NCC, determining a mild hybrid starter and generator (MHSG) target RPM and an MHSG target RPM gradient of the vehicle, performing, by the controller, MHSG RPM control of the vehicle to follow the MHSG target RPM and the MHSG target RPM gradient, determining whether the MHSG RPM slips compared to the MHSG target RPM, and performing proportional-integral-derivative (PID) control to follow the MHSG target RPM if the MHSG RPM slips compared to the MHSG target RPM.Type: GrantFiled: September 30, 2020Date of Patent: August 15, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jaebin Lee, Jun Sung Park, Tae Won Hwang
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Publication number: 20220032901Abstract: A method of controlling an engine and a transmission of a vehicle, which is a hybrid vehicle, includes the following steps that are carried out by a controller: determining whether the vehicle is under NCC (Neutral Coasting Control), determining whether an engine RPM reaches an engine RPM control point if it is determined that the NCC is in effect, determining an RPM and a gear stage of a vehicle transmission if it is determined that the engine RPM has reached the engine RPM control point, determining an engine target RPM of the vehicle, determining whether the engine RPM has reached a mild hybrid starter & generator (MHSG) control point, and controlling the MHSG according to a condition if it is determined that the engine RPM has reached the MHSG control point.Type: ApplicationFiled: November 19, 2020Publication date: February 3, 2022Inventors: Jun Sung Park, Jaebin Lee, Tae Won Hwang
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Publication number: 20210339732Abstract: A method of controlling an engine and a transmission of a vehicle includes: determining, by a controller, whether the engine is restarted after releasing the vehicle's SSC (Start & Stop coasting) or whether the vehicle is accelerating during NCC (Neutral Coasting control), determining an RPM and gear stage of the transmission if it is determined that the engine is restarted after releasing the vehicle's SSC or the vehicle is accelerating during NCC, determining a mild hybrid starter and generator (MHSG) target RPM and an MHSG target RPM gradient of the vehicle, performing, by the controller, MHSG RPM control of the vehicle to follow the MHSG target RPM and the MHSG target RPM gradient, determining whether the MHSG RPM slips compared to the MHSG target RPM, and performing proportional-integral-derivative (PID) control to follow the MHSG target RPM if the MHSG RPM slips compared to the MHSG target RPM.Type: ApplicationFiled: September 30, 2020Publication date: November 4, 2021Inventors: Jaebin Lee, Jun Sung Park, Tae Won Hwang
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Patent number: 9657595Abstract: A bearing unit of a turbocharger may be disposed on an inner side of a space in a center housing and carry axial load of a rotary shaft connecting a turbine wheel, a compressor wheel, and an electric motor. The bearing unit may include a bearing body fastened to a side of the center housing and has a through-hole substantially at a center of the bearing body, and a coupling disposed in the through-hole and on the rotary shaft, having a stepped portion in which the bearing body is inserted, and forming an oil chamber with the bearing body.Type: GrantFiled: December 6, 2013Date of Patent: May 23, 2017Assignee: Hyundai Motor CompanyInventors: Kitae Yeom, Jaesik Yang, Sung Won Kim, Tae Won Hwang, Hong-Young Lee
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Patent number: 9583998Abstract: A rotor assembling method for a turbo-charger may include washing and preparing components of a rotor having a connector, a permanent magnet, end caps, a retention ring, and a center pipe, inserting the connector into the permanent magnet, thermally inserting one or more end caps into the connector by cooling the connector and heating the one or more end caps under a first high-temperature condition for a first predetermined time to form a permanent magnet assembly, thermally inserting the permanent magnet assembly into the retention ring by cooling the permanent magnet assembly and heating the retention ring under a second high-temperature condition for a second predetermined time to form a rotor assembly, thermally inserting the center pipe into the rotor assembly by heating the rotor assembly under a third high-temperature condition for a third predetermined time to form a rotor assembling body, and post processing the rotor assembling body.Type: GrantFiled: December 6, 2013Date of Patent: February 28, 2017Assignee: Hyundai Motor CompanyInventors: Kitae Yeom, Jaesik Yang, Sung Won Kim, Tae Won Hwang, Jae Man Lim, Hong-Young Lee
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Patent number: 9538584Abstract: A tapping device and method using induction heat for melt comprises melting furnace made of steel; heating unit disposed in the upper part in the melting furnace and made of graphite material; induction coil wound around the heating unit; insulator disposed adjacent to the bottom surface of the lower part of the melting furnace; supporter disposed outside the insulator; and firebricks disposed on the bottom surface of melting furnace and outside the supporter.Type: GrantFiled: December 30, 2013Date of Patent: January 3, 2017Assignee: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je Cho, Cheon Woo Kim, Young Il Kim, Sang Woo Lee, Seung Chul Park, Jong Gil Park, Tae Won Hwang
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Patent number: 9359965Abstract: A turbocharger system includes a compressor that is connected with a turbine operated by an exhaust gas by a rotary shaft and compresses and supplies external gas to a combustion chamber of an engine, an intercooler and a throttle valve disposed in an intake line connecting the compressor with the combustion chamber of the engine, a branch line connecting an intake line between the compressor and the intercooler with an intake line between the intercooler and the throttle valve, a shutoff valve disposed in the branch line to selectively open/close the branch line, and an engine control unit controlling the operation of the shutoff valve.Type: GrantFiled: December 6, 2013Date of Patent: June 7, 2016Assignee: Hyundai Motor CompanyInventors: Kitae Yeom, Jaesik Yang, Sung Won Kim, Tae Won Hwang, Hong-Young Lee
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Patent number: 9356546Abstract: A sensorless control method for a motor performed by a sensorless controller including a back electromotive force (EMF) observer and a phase locked loop (PLL) controller, includes: estimating a back EMF of the motor using the back EMF observer; calculating an electrical angle error in accordance with iron loss of the motor based on the estimated back EMF; and compensating for the calculated electrical angle error, inputting the compensated electrical angle error into the PLL controller to estimate an actual angle, and controlling the motor based on the estimated actual angle.Type: GrantFiled: November 23, 2014Date of Patent: May 31, 2016Assignees: Hyundai Motor Company, Postech Academy-Industry FoundationInventors: Jaesik Yang, Kitae Yeom, Sung Won Kim, Tae Won Hwang, Jun Woo Kim, Kwang-Hee Nam
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Patent number: 9265096Abstract: A cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an outer curved portion which forms an outer surface of the wall and is convex outward relative to the wall, an inner planar portion which forms an inner surface of the wall, and two side planar portions which connect the inner curved portion to the outer planar portion. The metal sector further includes a cooling passage longitudinally formed inside the metal sector, and an insulation layer covering the inner curved portion and the two side planar portions.Type: GrantFiled: September 26, 2011Date of Patent: February 16, 2016Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Patent number: 9265095Abstract: A cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an inner curved portion which forms an inner surface of the wall and is convex inward relative to the wall, an outer planar portion which forms an outer surface of the wall, and two side planar portions which connect the inner curved portion to the outer planar portion. The metal sector further includes a cooling passage longitudinally formed inside the metal sector, and an insulation layer covering the inner curved portion and the two side planar portions.Type: GrantFiled: September 26, 2011Date of Patent: February 16, 2016Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Publication number: 20150365029Abstract: A sensorless control method for a motor performed by a sensorless controller including a back electromotive force (EMF) observer and a phase locked loop (PLL) controller, includes: estimating a back EMF of the motor using the back EMF observer; calculating an electrical angle error in accordance with iron loss of the motor based on the estimated back EMF; and compensating for the calculated electrical angle error, inputting the compensated electrical angle error into the PLL controller to estimate an actual angle, and controlling the motor based on the estimated actual angle.Type: ApplicationFiled: November 23, 2014Publication date: December 17, 2015Inventors: Jaesik Yang, Kitae Yeom, Sung Won Kim, Tae Won Hwang, Jun Woo Kim, Kwang-Hee Nam
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Patent number: 9212077Abstract: A molten glass discharging device provided in the bottom of a melting furnace of a waste vitrification apparatus so that the device can control the melting or cooling of a molten material. The molten glass discharging device, which is provided in the bottom of the furnace and controls discharging of a molten material, includes: an induction heating unit (110) having a discharging passage (10) along a discharging port formed in the bottom of the melting furnace; an induction coil (120) provided outside the induction heating unit (110); and a cooling unit (130) supporting the induction heating unit (110) and having a cooling conduit through which a cooling fluid circulates. The device can realize repeated discharging of the molten material by induction heating or cooling of the induction heating unit. Further, even when glass is adhered to the discharging port, the adhered glass can be easily discharged from the furnace.Type: GrantFiled: February 15, 2012Date of Patent: December 15, 2015Assignee: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Patent number: 9192041Abstract: The present invention is to solve the problems described above and to provide the plasma torch nozzle of graphite material coupled to the front electrode of the plasma torch by bolts. To achieve the object of the invention, the plasma torch nozzle according to this invention is characterized by that the torch nozzle is fixedly coupled to the front electrode of the plasma torch by one or more bolts.Type: GrantFiled: December 18, 2013Date of Patent: November 17, 2015Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Cheon Woo Kim, Young Il Kim, Sang Woo Lee, Seung Chul Park, Jong Gil Park, Tae Won Hwang
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Patent number: 9017555Abstract: A waste liquid treatment apparatus with enhanced treatment capacity for a pre-treatment facility of a liquid radwaste treatment system for a nuclear power plant. The waste liquid treatment apparatus includes: a water tank into which a waste liquid is introduced and from which filtered permeated water is discharged; a waste liquid introduction section through which waste liquid is introduced into the water tank; submerged membranes annularly disposed and spaced apart from each other for filtering foreign substances from the waste liquid; a permeated water suctioning section suctioning the filtered water of the waste liquid and discharging the filtered water outside the water tank; an air supplying section supplying compressed air to the submerged membranes to remove foreign substances; and a porous support plate supporting the submerged membranes.Type: GrantFiled: July 18, 2011Date of Patent: April 28, 2015Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hang Rae Cho, Ho Yeon Yang, Ji Hoon Lee, Tae Won Hwang, Young Bu Choi
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Publication number: 20150102019Abstract: The present invention is to solve the problems described above and to provide the plasma torch nozzle of graphite material coupled to the front electrode of the plasma torch by bolts. To achieve the object of the invention, the plasma torch nozzle according to this invention is characterized by that the torch nozzle is fixedly coupled to the front electrode of the plasma torch by one or more bolts.Type: ApplicationFiled: December 18, 2013Publication date: April 16, 2015Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Cheon Woo KIM, Young Il KIM, Sang Woo LEE, Seung Chul PARK, Jong Gil PARK, Tae Won HWANG
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Publication number: 20150098484Abstract: A tapping device and method using induction heat for melt comprises melting furnace made of steel; heating unit disposed in the upper part in the melting furnace and made of graphite material; induction coil wound around the heating unit; insulator disposed adjacent to the bottom surface of the lower part of the melting furnace; supporter disposed outside the insulator; and firebricks disposed on the bottom surface of melting furnace and outside the supporter.Type: ApplicationFiled: December 30, 2013Publication date: April 9, 2015Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Cheon Woo KIM, Young Il KIM, Sang Woo LEE, Seung Chul PARK, Jong Gil PARK, Tae Won HWANG
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Patent number: 8770118Abstract: An oxygen supplying apparatus of a melting furnace, in which waste contained within the melting furnace is stirred by using an oxygen supplying member of the melting furnace, includes an air cooling member provided in a through hole formed on the melting furnace and mounted on the oxygen supplying member to allow an outside air to enter thereto.Type: GrantFiled: May 8, 2012Date of Patent: July 8, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20140182287Abstract: A turbocharger system includes a compressor that is connected with a turbine operated by an exhaust gas by a rotary shaft and compresses and supplies external gas to a combustion chamber of an engine, an intercooler and a throttle valve disposed in an intake line connecting the compressor with the combustion chamber of the engine, a branch line connecting an intake line between the compressor and the intercooler with an intake line between the intercooler and the throttle valve, a shutoff valve disposed in the branch line to selectively open/close the branch line, and an engine control unit controlling the operation of the shutoff valveType: ApplicationFiled: December 6, 2013Publication date: July 3, 2014Applicants: NEUROS CO., LTD., Hyundai Motor CompanyInventors: Kitae YEOM, Jaesik Yang, Sung Won Kim, Tae Won Hwang, Hong-Young Lee
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Publication number: 20140186159Abstract: A bearing unit of a turbocharger may be disposed on an inner side of a space in a center housing and carry axial load of a rotary shaft connecting a turbine wheel, a compressor wheel, and an electric motor. The bearing unit may include a bearing body fastened to a side of the center housing and has a through-hole substantially at a center of the bearing body for fitting the rotary shaft fitted, and a coupling disposed on the through-hole and the rotary shaft, having a stepped portion in which the bearing body is inserted, and forming an oil chamber with the bearing body.Type: ApplicationFiled: December 6, 2013Publication date: July 3, 2014Applicants: NEUROS CO., LTD., Hyundai Motor CompanyInventors: Kitae YEOM, Jaesik Yang, Sung Won Kim, Tae Won Hwang, Hong-Young Lee