-
公开(公告)号：US11305655B2
公开(公告)日：2022-04-19
申请号：US16815306
申请日：2020-03-11
发明人： Dae Woo Lee , Min Seong Choi , Si Hun Yang , Jae Eun Cha , Jin Young Yang , In Yong Yeo
摘要： An electric power conversion system includes: an AC-DC conversion circuit converting AC charging power into DC power; a motor including a plurality of coils, one end of each being connected to a neutral point; a first switching device selectively allowing or blocking supply of output power from the AC-DC conversion circuit to the neutral point; an inverter including a plurality of motor connection terminals connected to the other ends of the coils of the motor, respectively, DC connection terminals including a positive terminal and a negative terminal, and a plurality of switching elements forming electrical connections between the DC connection terminals and the plurality of motor connection terminals; a battery connected to the DC connection terminals of the inverter; and a controller controlling operations of the AC-DC conversion circuit, the first switching device, and the inverter in accordance with whether or not the battery is charged.
-
公开(公告)号：US11230201B2
公开(公告)日：2022-01-25
申请号：US16679469
申请日：2019-11-11
发明人： Dae Woo Lee , Min Seong Choi , In Yong Yeo , Tae Jong Ha , Jin Myeong Yang , Woo Young Lee
摘要： A system of charging a battery of a vehicle is provided. The system includes a charger having a direct current (DC) capacitor to which a DC voltage converted from an AC charge voltage is applied and a first DC converter that converts a 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：US11214158B2
公开(公告)日：2022-01-04
申请号：US16746082
申请日：2020-01-17
发明人： Dae Woo Lee , Jae Eun Cha , Byung Gu Kang , Tae Jong Ha
摘要： A method of controlling charge of a vehicle battery includes: determining, by a control unit, whether a high voltage battery and a low voltage battery are charged in a first charging mode, a second charging mode, or a third charging mode; and charging at least one of the high voltage battery or the low voltage battery by controlling a first full-bridge circuit unit, a second full-bridge circuit unit, and a low voltage direct current (DC) converter unit based on the determined first, second or third charging mode.
-
公开(公告)号：US10744898B2
公开(公告)日：2020-08-18
申请号：US15827502
申请日：2017-11-30
发明人： Jin Myeong Yang , Woo Young Lee , Jun Ho Kim , Sihun Yang , Youngjin Kim , Jae Eun Cha , Dae Woo Lee , Inyong Yeo
摘要： A motor driving and battery charging apparatus is provided. The apparatus includes a motor having a plurality of coils, a rectifier circuit connected to the plurality of coils, and a high voltage battery. An inverter generates a driving current from an output voltage of the high voltage battery and supplies the driving current to the motor while the motor operates. While the high voltage battery is charged, the rectifier circuit rectifies an alternating current (AC) of an external power source, the motor and the inverter compensate for a power factor of the current rectified by the rectifier circuit, and the high voltage battery is charged with an output current of the motor and the inverter.
-
公开(公告)号：US20190061553A1
公开(公告)日：2019-02-28
申请号：US15827502
申请日：2017-11-30
发明人： Jin Myeong Yang , Woo Young Lee , Jun Ho Kim , Sihun Yang , Youngjin Kim , Jae Eun Cha , Dae Woo Lee , Inyong Yeo
IPC分类号： B60L11/18
摘要： A motor driving and battery charging apparatus is provided. The apparatus includes a motor having a plurality of coils, a rectifier circuit connected to the plurality of coils, and a high voltage battery. An inverter generates a driving current from an output voltage of the high voltage battery and supplies the driving current to the motor while the motor operates. While the high voltage battery is charged, the rectifier circuit rectifies an alternating current (AC) of an external power source, the motor and the inverter compensate for a power factor of the current rectified by the rectifier circuit, and the high voltage battery is charged with an output current of the motor and the inverter.
-
公开(公告)号：US11355947B2
公开(公告)日：2022-06-07
申请号：US16530128
申请日：2019-08-02
发明人： Dea Ki Cheong , Dae Woo Lee
摘要： An apparatus of incorporating a non-isolated charger and a DC converter, may include a non-isolated charger including a non-isolated converter converting a level of input voltage and outputting converted voltage to a battery; and a DC converter including a first switch selectively making an electrical connection to a connection node of the non-isolated converter and the battery and a primary side circuit including at least some of switching elements included in the non-isolated converter and converting a level of voltage of the battery transmitted by the primary side circuit and outputting converted voltage.
-
公开(公告)号：US11207992B2
公开(公告)日：2021-12-28
申请号：US16121056
申请日：2018-09-04
发明人： In Yong Yeo , Jin Myeong Yang , Woo Young Lee , Youn Sik Lee , Dae Woo Lee , Jong Pil Kim
摘要： 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：US20190315233A1
公开(公告)日：2019-10-17
申请号：US16121056
申请日：2018-09-04
发明人： In Yong Yeo , Jin Myeong Yang , Woo Young Lee , Youn Sik Lee , Dae Woo Lee , Jong Pil Kim
IPC分类号： B60L11/18
摘要： 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：US20190312499A1
公开(公告)日：2019-10-10
申请号：US16153279
申请日：2018-10-05
发明人： Tae Jong Ha , In Yong Yeo , Dae Woo Lee , Youn Sik Lee
摘要： 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.
-
公开(公告)号：US10404179B1
公开(公告)日：2019-09-03
申请号：US16132720
申请日：2018-09-17
发明人： Dae Woo Lee , Woo Young Lee , Min Seong Choi , Tae Jong Ha , Jae Eun Cha , Jin Myeong Yang , In Yong Yeo
摘要： 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.
-
-
-
-
-
-
-
-
-
搜索结果
45 条记录 (耗时 0.02 秒)
