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公开(公告)号：US11335494B2
公开(公告)日：2022-05-17
申请号：US16510036
申请日：2019-07-12
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： In Yong Yeo , Tae Jong Ha , Dae Woo Lee , Youn Sik Lee
Abstract: A planar transformer is disclosed. The planar transformer includes a first core, a second core, a third core, and a fourth core, which are sequentially disposed; a primary coil unit having multiple primary substrates through which the first to fourth cores penetrate and on which primary coil patterns are formed such that magnetic flux is generated in a first direction in the first and fourth cores and in a second direction in the second and third cores; and a secondary coil unit having multiple secondary substrates through which the first to fourth cores penetrate and on which secondary coil patterns are formed, the secondary coil patterns formed on a periphery of the first to fourth cores such that current induced by the magnetic flux flowing in the first to fourth cores flows therein, wherein the multiple primary and secondary substrates form a multi-layer structure.
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公开(公告)号：US11223292B2
公开(公告)日：2022-01-11
申请号：US16405743
申请日：2019-05-07
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Jin Young Yang , Jong Pil Kim , Woo Young Lee , Ji Han Lee , Youn Sik Lee , Si Hun Yang , Jin Myeong Yang
Abstract: A united converter apparatus and an operating method thereof are disclosed. The united converter apparatus includes a high-voltage charger charging a high-voltage battery, using a commercial power and a low-voltage charger charging a low-voltage battery, using the high-voltage battery. The high-voltage charger includes a voltage level adjustment device boosts a voltage of the commercial power to apply the boosted voltage to the high-voltage battery and drops a high voltage applied from the high-voltage battery to apply the dropped voltage to the low-voltage charger.
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公开(公告)号：US10965205B2
公开(公告)日：2021-03-30
申请号：US16153279
申请日：2018-10-05
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Tae Jong Ha , In Yong Yeo , Dae Woo Lee , Youn Sik Lee
Abstract: A power conversion system for vehicles is provided. The system includes a first energy storage device and a charging device with a rectification circuit for rectifying AC power to generate a DC link voltage. A DC-DC converter converts the level of the DC link voltage to generate a charging voltage of the first energy storage device. A low voltage DC-DC converter selectively down-converts one of the voltage of the first energy storage device and the DC link voltage to output a low voltage having a predetermined level. The low voltage DC-DC converter selectively converts one of the voltage of the first energy storage device and the DC link voltage into the low voltage based on whether the first energy storage device is charged according to input of the AC power.
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公开(公告)号：US10250117B2
公开(公告)日：2019-04-02
申请号：US15795685
申请日：2017-10-27
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Youn Sik Lee , Dae Woo Lee , Tae Jong Ha , In Yong Yeo , Byeong Seob Song
Abstract: The present disclosure provides a converter controlling apparatus including a plurality of switching devices capable of controlling a pulse width modulation (PWM), the converter controlling apparatus including: an efficiency determiner configured to variably change resistance of a gate terminal, wherein a PWM signal for controlling the PWM of the switching device is applied to a gate terminal based on an amount of current flowing through the converter.
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公开(公告)号：US11207992B2
公开(公告)日：2021-12-28
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
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.
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Patent Agency Ranking
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.
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公开(公告)号：US20190312499A1
公开(公告)日：2019-10-10
申请号：US16153279
申请日：2018-10-05
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Tae Jong Ha , In Yong Yeo , Dae Woo Lee , Youn Sik Lee
Abstract: A power conversion system for vehicles is provided. The system includes a first energy storage device and a charging device with a rectification circuit for rectifying AC power to generate a DC link voltage. A DC-DC converter converts the level of the DC link voltage to generate a charging voltage of the first energy storage device. A low voltage DC-DC converter selectively down-converts one of the voltage of the first energy storage device and the DC link voltage to output a low voltage having a predetermined level. The low voltage DC-DC converter selectively converts one of the voltage of the first energy storage device and the DC link voltage into the low voltage based on whether the first energy storage device is charged according to input of the AC power.
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公开(公告)号：US20160161530A1
公开(公告)日：2016-06-09
申请号：US14663848
申请日：2015-03-20
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Seong Min Lee , Jin Myeong Yang , Youn Sik Lee , Je Hwan Lee , Sang Cheol Shin , Han Geun Jang
IPC: G01R15/18
CPC classification number: G01R15/183
Abstract: A current sensing circuit includes: a current sensing transformer including a primary coil connected to an input terminal of a converter and a secondary coil; a first current path connected to the secondary coil, including a first resistor, and configured to allow a forward current induced in the secondary coil to flow therethrough; and a second current path connected to the secondary coil, including a second resistor, and configured to allow a reverse current induced in the secondary coil to flow therethrough, wherein the first current path further includes at least one voltage drop element disposed between the secondary coil and the first resistor.
Abstract translation: 电流检测电路包括：电流检测变压器，包括连接到转换器的输入端的初级线圈和次级线圈; 连接到次级线圈的第一电流路径，包括第一电阻器，并且被配置为允许在次级线圈中感应的正向电流流过; 以及连接到所述次级线圈的第二电流路径，包括第二电阻器，并且被配置为允许次级线圈中感应的反向电流流过其中，其中所述第一电流路径还包括设置在所述次级线圈之间的至少一个电压降元件 和第一个电阻。
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公开(公告)号：US09884559B2
公开(公告)日：2018-02-06
申请号：US14945687
申请日：2015-11-19
Applicant: Hyundai Motor Company
Inventor： Youn Sik Lee , Sang Cheol Shin
CPC classification number: B60L11/18 , B60L3/003 , B60L11/12 , B60L2210/10 , B60L2240/525 , H02M3/1588 , Y02B70/1466
Abstract: A device and a method for controlling a high side DC/DC converter (HDC) of a hybrid vehicle are provided. The switching frequency of the HDC is variably adjusted based on situations of temperatures of an inductor and an IGBT switching element, which constitute the HDC, to maintain a balance between the temperatures of the inductor and the IGBT switching element. Accordingly, temperatures of the inductor and the IGBT switching element are detected, and the switching frequency of the HDC is variably adjusted based on a situation for each temperature of each element to maintain a balance between the temperatures of the inductor and the IGBT switching element, thereby improving the utilization rate of the IGBT switching element.
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公开(公告)号：US09632118B2
公开(公告)日：2017-04-25
申请号：US14632246
申请日：2015-02-26
Applicant: Hyundai Motor Company
Inventor： Jin Myeong Yang , Youn Sik Lee , Je Hwan Lee , Seong Min Lee , Sang Cheol Shin , Han Geun Jang
CPC classification number: G01R19/32 , G01R19/0092
Abstract: A current sensing apparatus includes: a temperature sensor configured to sense a temperature of a power converter; a current sensing unit configured to sense an input current of the power converter; and a central processing unit (CPU) configured to control an operation of the power converter in response to the sensed temperature of the power converter and the sensed input current of the power converter. The CPU includes a compensation unit configured to store, upon receiving an indication of the sensed temperature of the power converter from the temperature sensor, an operation voltage of at least one diode included in the current sensing unit in a map, and to compensate for an error of a sensing current based on the stored operation voltage when the current sensing unit senses the input current.
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