公开(公告)号：US20210078422A1

公开(公告)日：2021-03-18

申请号：US16679469

申请日：2019-11-11

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Dae Woo Lee ,  Min Seong Choi ,  In Yong Yeo ,  Tae Jong Ha ,  Jin Myeong Yang ,  Woo Young Lee

IPC: B60L53/22 ,  H02J7/02 ,  H02M3/335 ,  H02M1/42 ,  B60L50/60

Abstract: A system of charging a battery of a vehicle is provide. The system includes a charger having a DC capacitor to which a DC voltage converted from an AC charge voltage is applied and a first DC converter that converts the magnitude of a voltage of the DC capacitor. A first battery is connected to the first DC converter and is charged with a DC voltage converted by the first DC converter. A second DC converter is connected to the battery and converts a magnitude of a voltage of the battery. A second battery receives a DC voltage converted by the second DC converter. A controller charges the DC capacitor up to a predetermined initial charge voltage using power stored in the second battery by operating the second DC converter and the first DC converter in a backward direction before the AC charge voltage is provided to the charger.

公开(公告)号：US10819162B2

公开(公告)日：2020-10-27

申请号：US15904960

申请日：2018-02-26

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Woo Young Lee ,  Gyu Yeong Choe ,  Jae Eun Cha ,  Byoung Kuk Lee ,  Min Kook Kim ,  Min Jung Kim ,  Dong Myoung Joo ,  Jong Eun Byun

IPC: H02J50/60 ,  H02J50/12 ,  H02J7/02 ,  H02M3/335 ,  B60L53/12 ,  H02M3/337 ,  H02M1/00

Abstract: A method for detecting a foreign object between a transmission pad and a reception pad for wireless power transfer (WPT) may comprise steps of performing a zero phase angle (ZPA) control for a power transfer converter included in or connected to the transmission pad; detecting a characteristic parameter with respect to at least one of an input current and a switching frequency of the power transfer converter; and determining whether or not a foreign object exists between the transmission pad and the reception pad according to whether the characteristic parameter with respect to at least one of the input current and the switching frequency deviates from an allowable range.

公开(公告)号：US10793015B2

公开(公告)日：2020-10-06

申请号：US16105369

申请日：2018-08-20

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Sihun Yang ,  Jongpil Kim ,  Youngjin Kim ,  JinYoung Yang ,  Jin Myeong Yang ,  Woo Young Lee

IPC: H02M1/42 ,  B60L53/20 ,  H02P27/06 ,  H02M7/5387 ,  H02M1/44

Abstract: A charging apparatus for an electric vehicle is provided. The apparatus charges a vehicle battery upon receiving power from different power sources. The apparatus includes a motor generating power to drive the electric vehicle and an inverter supplying power to the motor. An AC power input terminal receives at least one of single-phase AC power and multi-phase AC power. A power factor corrector having a single three-leg half bridge circuit receives the AC input power through the AC power input terminal. A link capacitor is charged through a combination of the power factor corrector, the motor, and the inverter. A switch network has at least one switch for selectively connecting the AC power input terminal to the power factor corrector, the link capacitor, the motor, or the inverter. A controller operates the power factor corrector, the switch network, and the inverter based on a condition of received AC input power.

公开(公告)号：US20190318864A1

公开(公告)日：2019-10-17

申请号：US16141312

申请日：2018-09-25

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： In Yong Yeo ,  Jin Myeong Yang ,  Jae Eun Cha ,  Dae Woo Lee ,  Woo Young Lee

IPC: H01F27/28 ,  H01F27/32 ,  H01F30/06 ,  H01F17/00 ,  H05K1/16

Abstract: A planar transformer according to the present disclosure can include: at least one pair of cores arranged vertically and symmetrically; and a printed circuit board assembly including primary printed circuit boards having coil patterns forming a primary wiring and secondary printed circuit boards having coil patterns forming a secondary wiring, the secondary printed circuit boards respectively disposed over or under the primary printed circuit boards. The coil patterns of the primary printed circuit boards and the coil patterns of the secondary printed circuit boards can be alternately stacked.

公开(公告)号：US20190299793A1

公开(公告)日：2019-10-03

申请号：US16168530

申请日：2018-10-23

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jongpil Kim ,  Inyong Yeo ,  Youngjin Kim ,  Woo Young Lee

IPC: B60L11/18 ,  H02M1/42 ,  H02J7/02 ,  H02M7/219

Abstract: A charging apparatus is provided. The apparatus includes an AC power input stage receiving at least one AC input power from among single-phase AC power and multi-phase AC power. A power factor corrector has a single three-leg half bridge circuit receiving the AC input power through the AC power input stage. A link capacitor is charged through the power factor corrector. A converter connects between the link capacitor and a battery. A first switch connects any one of an AC power input line and a neutral line of the AC power input stage to the power factor corrector. A second switch selectively connects the AC power input stage to the power factor corrector, or the link capacitor. A controller operates the power factor corrector and the switch network based on the received condition of the AC input power.

公开(公告)号：US20190111797A1

公开(公告)日：2019-04-18

申请号：US16157699

申请日：2018-10-11

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Woo Young Lee ,  Jong Pil Kim

IPC: B60L11/18 ,  H02J50/12 ,  H02J7/02 ,  H02J50/90

Abstract: A method for wireless power transfer (WPT) to an electric vehicle (EV) performed by a wireless charging apparatus may include detecting, by the wireless charging apparatus, an alignment state between a transmission pad mounted in the wireless charging apparatus and a reception pad mounted in the EV; controlling, by the wireless charging apparatus, a number of turns in a transmission coil included in the transmission pad or a reception coil included in the reception pad according to the detected alignment state; and performing, by the wireless charging apparatus, WPT to the EV after the controlling of the number of turns in the transmission coil or the reception coil is completed.

公开(公告)号：US20190097111A1

公开(公告)日：2019-03-28

申请号：US15822121

申请日：2017-11-25

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Industry-Academic Cooperation Foundation, Yonsei University

Inventor： Byung Wook Kim ,  Jin Woo Kwak ,  Woo Young Lee ,  Gwan Sik Kim ,  Hyun Jun Rim

IPC: H01L35/22 ,  H01L35/16 ,  H01L35/18

CPC classification number: H01L35/22 ,  H01L35/16 ,  H01L35/18

Abstract: Provided herein are a thermoelectric material and a method for preparing the same. The thermoelectric material may include a plurality of grains formed by a chemical bond between a first element and a second element, a graphene-based material; and metal particles. In particular, the graphene-based material and the metal particles may be in interfaces between the grains.

公开(公告)号：US10074789B2

公开(公告)日：2018-09-11

申请号：US15605584

申请日：2017-05-25

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Industry-Academic Cooperation Foundation, Yonsei University

Inventor： Byung Wook Kim ,  Jong Kook Lee ,  Han Saem Lee ,  In Woong Lyo ,  Jin Woo Kwak ,  Woo Young Lee ,  Gwan Sik Kim ,  Hwi Jong Lee

IPC: H01L35/22 ,  H01L35/16 ,  H01L35/18 ,  H01L35/14 ,  H01L35/34 ,  H01L35/28 ,  C04B35/58 ,  C04B35/626 ,  C04B35/645

CPC classification number: H01L35/16 ,  C04B35/58085 ,  C04B35/6261 ,  C04B35/62615 ,  C04B35/6264 ,  C04B35/62645 ,  C04B35/62685 ,  C04B35/645 ,  C04B2235/3891 ,  C04B2235/40 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/5292 ,  C04B2235/5436 ,  C04B2235/602 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/666 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9607 ,  H01L35/14 ,  H01L35/18 ,  H01L35/22 ,  H01L35/28 ,  H01L35/34

Abstract: Provided herein are a thermoelectric material and a method for preparing the same, wherein the thermoelectric material has excellent thermoelectric performance and high mechanical properties (in particular, fracture toughness), and thus, when the thermoelectric material is applied to a thermoelectric module, the thermoelectric module has excellent performance and efficiency and a long lifespan.

公开(公告)号：US20180109292A1

公开(公告)日：2018-04-19

申请号：US15730960

申请日：2017-10-12

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Research & Business Foundation Sungkyunkwan University

Inventor： Woo Young Lee ,  Gyu Yeong Choe ,  Min Jung Kim ,  Min Kook Kim ,  Jong Eun Byeon ,  Min Hyuck Kang ,  Dong Gyun Woo ,  Byoung Kuk Lee ,  Dong Myoung Joo

IPC: H04B5/00 ,  H01F38/14 ,  H01F5/04 ,  H02J50/10

CPC classification number: H04B5/0037 ,  H01F5/04 ,  H01F38/14 ,  H02J7/0042 ,  H02J50/10

Abstract: A reception pad for a wireless power transfer (WPT) system includes: a plate-shaped ferrite; an insulating layer disposed on one side of the ferrite; a first coil layer disposed on the insulating layer; an interlayer insulating layer disposed on the first coil layer; and a second coil layer disposed on the interlayer insulating layer. The insulating layer at least partially surrounds the first coil layer and the second coil layer, the first coil layer and the second coil layer at least partially overlap each other and are arranged in a rectangular ring form on the one side of the ferrite, and a ratio of a width which is larger between a first width of the first coil layer and a second width of the second coil layer to a first length of the ferrite in a width direction corresponding to the first width or the second width is 0.14 to 0.15.

公开(公告)号：US20180070578A1

公开(公告)日：2018-03-15

申请号：US15698330

申请日：2017-09-07

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Research & Business Foundation Sungkyunkwan University

Inventor： Gyu Yeong CHOE ,  Woo Young Lee ,  Min Kook Kim ,  Min Jung Kim ,  Byoung Kuk Lee

IPC: A01M29/18 ,  B60L11/18 ,  G01V3/10 ,  H02J7/00

CPC classification number: A01M29/18 ,  A01M31/002 ,  B60L3/00 ,  B60L53/12 ,  B60L53/124 ,  B60L53/30 ,  G01V3/101 ,  H02J7/0027 ,  H02J7/0029 ,  H02J7/025 ,  H02J50/10 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/14

Abstract: A wireless power transfer (WPT) control method using an object detection sensor, performed at a WPT apparatus, may include detecting whether or not an object exists between a transmission pad and a reception pad mounted on an electric vehicle (EV) using an object detection sensor; in response to detecting that an object does not exist between the transmission pad and the reception pad, controlling the transmission pad to perform WPT to the reception pad; and in response to detecting that an object exists between the transmission pad and the reception pad, generating ultrasonic waves using an ultrasonic wave generator.