公开(公告)号：US11025161B2

公开(公告)日：2021-06-01

申请号：US16170972

申请日：2018-10-25

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION ,  Korea Advanced Institute of Science and Technology

Inventor： JongPil Kim ,  Jaehyuk Choi ,  Woo Young Lee ,  HanShin Youn ,  Gun-Woo Moon ,  Jae-Ii Baek ,  Jung-Kyu Han ,  Moo-Hyun Park

IPC: H02M1/42 ,  H02M1/44 ,  B60L50/51 ,  B60L53/20

Abstract: Disclosed are an electric vehicle capable of improving the charging efficiency of a charging apparatus by reducing the switching loss that may occur in the charging apparatus of an electric vehicle and a charging apparatus thereof. To this end, a power factor correction apparatus of an on board charger includes a first boost circuit receiving AC power through a first inductor to charge a load, a second boost circuit receiving the AC power through a second inductor to charge the load, and a third inductor provided between a leg of the first boost circuit and a leg of the second boost circuit so that parasitic capacitors of the first boost circuit and the second boost circuit are discharged.

公开(公告)号：US10807488B2

公开(公告)日：2020-10-20

申请号：US16171002

申请日：2018-10-25

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： JongPil Kim ,  Sihun Yang ,  Woo Young Lee

IPC: H02J7/02 ,  B60L53/30 ,  B60L53/14 ,  H02M1/42 ,  H02M1/44

Abstract: A charging apparatus for an electric vehicle is disclosed. The charging 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 having full bridge circuits receiving AC input power, a link capacitor charged through the power factor corrector, a switch network having a first switch connecting any one of an AC power input line and a neutral line of the AC power input stage to the power factor corrector and at least one second switch connecting the AC power input stage to the power factor corrector or the link capacitor, and a controller controlling the power factor corrector and the switch network according to AC input power condition. The second switch includes switches selectively connecting at least one full bridge circuit to a positive(+) electrode of a battery.

公开(公告)号：US20200183003A1

公开(公告)日：2020-06-11

申请号：US16672843

申请日：2019-11-04

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION ,  APTIV KOREA LLC

Inventor： Hoon Lee ,  Ji Eun Won ,  Dong Gu Lee ,  Sang Bok Won ,  Min Kyun Yoo ,  Jae Pil Hwang ,  Hyung Sun Jang ,  Uk Il Yang ,  Hyok Jin Chong ,  Kyoung Jun Lee ,  Woo Young Lee ,  Seul Ki Han ,  Bo Young Yun ,  Su Min Jo ,  Seung Joon Lee ,  Byung Gi Hong ,  Soo Bin Jeon ,  Min Ho Park ,  Gi Hyun Seo ,  Kyu Ho Park ,  Jun Kwon Jee

IPC: G01S13/93 ,  B60W30/09 ,  G01S7/41

Abstract: An apparatus and method for identifying a short cut-in vehicle, and a vehicle using the same are disclosed. The apparatus includes a signal conversion unit configured to receive and signal-process a plurality of sensing signals, a computation unit configured to compute state information of a surrounding vehicle detected from the signal-processed signal, a sensor fusion track output unit configured to output a sensor fusion track based on the computed state information of the surrounding vehicle, an occupancy distance map (ODM) output unit configured to output ODM information including a grid map corresponding to a vehicle detection region and an ODM object including a plurality of detection points based on the computed state information of the surrounding vehicle, and a cut-in vehicle identification unit configured to identify a cut-in vehicle based on the output sensor fusion track and ODM information.

公开(公告)号：US10654373B2

公开(公告)日：2020-05-19

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: H02M1/42 ,  H02J7/02 ,  H02M7/219 ,  B60L53/22 ,  H02M1/44

Abstract: Disclosed herein is a charging apparatus. The charging apparatus includes an alternating current (AC) power input stage receiving at least one AC input power from among a single-phase AC power and a multi-phase AC power. A power factor corrector has a single three-leg half bridge circuit receiving the at least one 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 a received condition of the at least one AC input power.

公开(公告)号：US20190315233A1

公开(公告)日：2019-10-17

申请号：US16121056

申请日：2018-09-04

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： In Yong Yeo ,  Jin Myeong Yang ,  Woo Young Lee ,  Youn Sik Lee ,  Dae Woo Lee ,  Jong Pil Kim

IPC: B60L11/18

Abstract: A power conversion system for vehicles is provided. The system includes a switching circuit having first input/output terminals, second input/output terminals and a plurality of switching elements connected between the first input/output terminals and the second input/output terminals. A first energy storage device is connected to the second input/output terminals and has a preset charging/discharging voltage. A first voltage conversion circuit converts power output from the first input/output terminals to output a voltage less than the voltage of the first energy storage device. A second energy storage device is charged/discharged with the output voltage of the first voltage conversion circuit. A controller controls open/short-circuit states of the switching elements based on whether the first energy storage device is being charged and whether the vehicle is traveling. When the first energy storage device is being charged, AC charging power is provided to the first input/output terminals from outside of the vehicle.

公开(公告)号：US10439446B2

公开(公告)日：2019-10-08

申请号：US15860352

申请日：2018-01-02

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

Inventor： Jae Eun Cha ,  Gyu Yeong Choe ,  Woo Young Lee ,  Byoung Kuk Lee ,  Min Jung Kim ,  Min Kook Kim ,  Jong Eun Byun ,  Sang Joon Ann

IPC: H02J50/60 ,  G01V8/18 ,  G01V8/26 ,  B60L53/12 ,  B60L53/31 ,  B60L53/60 ,  H02J7/00 ,  B60L53/124 ,  H02J7/02 ,  H02J50/12

Abstract: A foreign object detection apparatus using a mobile laser in a wireless power transfer (WPT) system may comprise a laser transmitting part installed on one side of an upper portion of a transmission pad to generate a laser; a laser receiving part installed on an opposite side to the one side, and receiving the laser generated by the laser transmitting part; and a laser moving part for moving the laser transmitting part and the laser receiving part along the one side or the opposite side of the transmission pad.

公开(公告)号：US10404179B1

公开(公告)日：2019-09-03

申请号：US16132720

申请日：2018-09-17

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

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

IPC: H02M3/335 ,  H02M3/337 ,  B60L11/18 ,  H02M1/08

Abstract: A low voltage DC-DC converter for a vehicle includes: a switching circuit including a plurality of capacitors and a plurality of switches and converting a high voltage output from a high voltage battery into an AC voltage; a transformer converting the AC voltage output from the switching circuit into a low voltage; a current sensor measuring a current value output from the transformer; and a controller comparing the current value measured by the current sensor with a reference value to determine whether a current mode is a continuous current mode or a discontinuous current mode, and controlling one of the plurality of switches to be turned on or off as the determination result.

公开(公告)号：US10389178B2

公开(公告)日：2019-08-20

申请号：US15339262

申请日：2016-10-31

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Woo Young Lee ,  Hyun Wook Seong ,  Gyu Yeong Choe

IPC: H02J50/10 ,  H02M3/158 ,  H02M3/335 ,  H02J50/12 ,  H02J7/02 ,  H02J50/80 ,  B60L53/12

Abstract: Disclosed are DC-to-AC converter control methods, ground assemblies and wireless power transfer methods using the same. A method for controlling a DC-to-AC converter of a ground assembly used for wireless power transfer, which includes first, second, third, and fourth switches arranged in a form of a bridge circuit between a power source and a primary coil, may comprise detecting a current flowing through the primary coil at a rising edge of an output voltage signal of the DC-to-AC converter; determining whether a strength of the current is at a negative level which falls within a predetermined reference range; and in response to a determination that the current is not at the negative level, changing switching frequencies of the DC-to-AC converter.

公开(公告)号：US20180345806A1

公开(公告)日：2018-12-06

申请号：US15792410

申请日：2017-10-24

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Woo Young Lee ,  Jin Hwan Jung ,  Young Jin Kim ,  Dong Sup Ahn ,  Byeong Seob Song ,  Gyu Yeong Choe

IPC: B60L11/18

CPC classification number: B60L11/1816 ,  B60L11/185 ,  B60L11/1855 ,  B60L11/1864 ,  B60L2240/547 ,  H02J7/0024

Abstract: A vehicle battery system and a method of controlling the same are provided. When voltage of the vehicle battery is different from an output voltage of a commercially available quick charger, two high-voltage batteries are connected in parallel during battery charging, and the two high-voltage batteries are connected in series during vehicle driving. Accordingly, a compatibility problem is resolved, thereby allowing an inverter, an electric motor, and a connector to have increased efficiency and to maximize a reduction in size, weight, and material cost thereof.

公开(公告)号：US10084444B2

公开(公告)日：2018-09-25

申请号：US15357887

申请日：2016-11-21

Applicant: Hyundai Motor Company

Inventor： Dae Woo Lee ,  Jin Myeong Yang ,  In Yong Yeo ,  Jin Young Yang ,  Youn Sik Lee ,  Byeong Seob Song ,  Woo Young Lee

IPC: H03K17/56 ,  H03K17/567 ,  H01L29/16 ,  H01L29/739 ,  H01L29/78

CPC classification number: H03K17/567 ,  H01L29/1608 ,  H01L29/7393 ,  H01L29/78 ,  H03K17/063 ,  H03K2017/066

Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC (silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.