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公开(公告)号：US11271391B2
公开(公告)日：2022-03-08
申请号：US16512729
申请日：2019-07-16
发明人： Sung Uk Park , Dong Gyun Woo , Hui Sung Jang , Hyun Wook Seong
摘要： An apparatus for controlling a low-voltage DC-to-DC converter of a vehicle for converting high-voltage power into low-voltage power may include a signal selector for selecting and outputting one of a charging-oriented voltage command for charging the battery or a preset burst mode voltage command for operation of the low-voltage DC-to-DC converter in a burst mode in which the battery cannot be charged, a battery charge/discharge current limiter for generating a voltage command compensation value for limiting charge current of the battery when the signal selector outputs the charging-oriented voltage command and limiting discharge current of the battery when the signal selector outputs the burst mode voltage command, and a controller for controlling an output voltage of the low-voltage DC-to-DC converter to follow a compensated voltage command generated by applying the voltage command compensation value to the voltage command output by the signal selector.
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公开(公告)号：US10784704B2
公开(公告)日：2020-09-22
申请号：US15835584
申请日：2017-12-08
发明人： Hui Sung Jang , Dong Gyun Woo , Hyun Wook Seong
摘要： Disclosed is an on-board charging system in which, when a plurality of charging circuits is connected in parallel between input and output terminals, operation timings of switching circuits in the respective charging circuits are interlocked to minimize ripples of an input alternating current. The on-board charging system includes: a plurality of charging circuits configured to each have a power factor correction circuit portion for correcting a power factor of alternating current input power by pulse width modulation control of a switching element and to be connected in parallel with each other between an input terminal of the AC input power and an output terminal connected to an object to be charged; and a controller configured to interlock the switching elements to generate a PWM control signal for performing PWM control.
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公开(公告)号：US10270273B2
公开(公告)日：2019-04-23
申请号：US15588086
申请日：2017-05-05
发明人： Dong Gyun Woo , Hui Sung Jang , Hyun Wook Seong
摘要： Disclosed is a charging apparatus mounted in a vehicle. The charging apparatus includes at least two power modules parallel to each other to convert input power applied from an outside into a charging power for charging a high-voltage battery, at least two slave controllers that outputs information about whether each of the power modules enters a constant-voltage charging mode, based on the charging power output from the power modules, and a master controller that determines whether the at least two power modules enter the constant-voltage charging mode by utilizing the information, which is received from the slave controllers, about whether each of the power modules enters the constant-voltage charging mode, wherein the master controller controls such that one of the power modules is operated when the power modules enter the constant-voltage charging mode.
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公开(公告)号：US10245962B2
公开(公告)日：2019-04-02
申请号：US15297808
申请日：2016-10-19
发明人： Woo Young Lee , Hyun Wook Seong , Gyu Yeong Choe
摘要： An active rectifier for a wireless power transfer system includes: a first rectifying circuit; a second rectifying circuit; a first switching circuit and a second switching circuit. The first rectifying circuit, the second rectifying circuit, the first switching circuit, and the second switching circuit are arranged in a form of a bridge circuit between a secondary coil of a vehicle and a battery of the vehicle, and the active rectifier controls the first and second switching circuits according to a charging status of the battery or an output status of the wireless power transfer system in order to change or maintain a charging power to the battery.
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公开(公告)号：US10239412B2
公开(公告)日：2019-03-26
申请号：US15289376
申请日：2016-10-10
发明人： Hyun Wook Seong , Woo Young Lee , Gyu Yeong Choe
摘要： A wireless charging method performed by a wireless power receiving apparatus for a vehicle includes: producing a resonance between a primary pad located outside of the vehicle and a secondary pad installed in the vehicle based on an initial switching frequency; and tuning a switching frequency of a direct current (DC) to DC (DC-to-DC) converter within a range determined based on the initial switching frequency, according to an output voltage outputted based on a resonance of the secondary pad which is caused by the primary pad.
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公开(公告)号：US20180354386A1
公开(公告)日：2018-12-13
申请号：US15807089
申请日：2017-11-08
发明人： Ho Joong Lee , Dong Jun Shin , Won Kyoung Choi , Jun Yeon Park , Na Lae Kwon , Hyun Wook Seong , Jee Heon Kim , Chang Ryeol Yoo , Dong Jun Lee
CPC分类号： B60L11/1862 , B60L7/16 , B60L53/20 , B60L58/13 , B60L2210/10
摘要： A method and system for controlling a vehicular direct current converter are provided. In particular, zero-current control is performed during control for maintaining an SOC of an auxiliary battery. Accordingly, energy loss due to charging and discharging of the auxiliary battery is minimized and the fuel efficiency of a vehicle is improved.
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公开(公告)号：US10056772B2
公开(公告)日：2018-08-21
申请号：US14922135
申请日：2015-10-24
发明人： Woo Young Lee , Si Hun Yang , In Yong Yeo , Tae Jong Ha , Gyu Yeong Choe , Hyun Wook Seong
CPC分类号： H02J7/0042 , H02J7/025 , H02J50/10
摘要： Disclosed herein is a wireless charging device including a heat radiation panel having a radiation plate and a radiation fin protruding from an upper surface of the radiation plate; a core section arranged in a region other than the protruding radiation fin, the core section being made of a material having high permeability; and a coil section arranged on the core section so as to come into contact with the protruding radiation fin.
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公开(公告)号：US20170349056A1
公开(公告)日：2017-12-07
申请号：US15352230
申请日：2016-11-15
发明人： Hui Sung Jang , Gi Bong Son , Hyun Wook Seong
CPC分类号： B60L11/1838 , B60L53/60 , H02J7/0026 , H02J7/0031 , H02J2007/0039 , Y02T10/7055
摘要： A method and system of controlling a charging device for vehicles are provided. The method includes sensing overcurrent in a power factor correction circuit of the charging device and turning off the power factor correction circuit upon sensing overcurrent. An output voltage of the power factor correction circuit is then increased when the number of generations of sensed overcurrent is equal to or less than a predetermined first reference value and the power factor correction circuit is turned on.
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公开(公告)号：US09698692B2
公开(公告)日：2017-07-04
申请号：US14562696
申请日：2014-12-06
发明人： Hui Sung Jang , Shin Hye Chun , Mu Shin Kwak , Hyun Wook Seong
CPC分类号： H02M3/1584 , H02M1/14 , H02M2003/1586
摘要： A multi-phase interleaved converter includes n sub-circuits of phases, a current controller and a balancing controller. The n sub-circuits of phases have inputs connected in parallel and outputs connected in parallel in order to convert a direct current (DC) or alternating current (AC) input voltage of one level into a DC or AC output voltage of another level. The current controller receives a current control command and a phase current value of a particular sub-circuit of a particular phase among the n sub-circuits of the respective phases to output a control signal for controlling the particular sub-circuit of the particular phase. The balancing controller receives phase current values of the n sub-circuits of the respective phases and receives a control signal output from the current controller to adjust the duty ratios of control signals applied to the other sub-circuits.
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公开(公告)号：US20170144556A1
公开(公告)日：2017-05-25
申请号：US15193276
申请日：2016-06-27
发明人： Jee Heon Kim , Dong Jun Lee , Gi Bong Son , Won Kyoung Choi , Hyun Wook Seong
CPC分类号： B60L11/1811 , B60L1/00 , B60L3/003 , B60L11/1803 , B60L11/1868 , B60L2210/12 , B60L2240/526 , B60L2240/527 , B60L2240/529 , B60L2240/547 , B60L2240/549 , B60L2240/80 , H02M3/04 , H02P27/08 , Y02T10/7005 , Y02T10/7066 , Y02T10/7233
摘要： A low voltage DC-DC converter of an eco-friendly vehicle is provided. The converter includes an output current limit map applier that is configured to output an output current limit value using an output current limit map. A power controller is configured to amplify the output limit value output from the output current limit map applier to a predefined gain. Furthermore, an output limiter is configured to output the output limit value output from the power controller, and filter and output the output limit value after a predefined time lapses.
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