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公开(公告)号：US11228049B2
公开(公告)日：2022-01-18
申请号：US16601123
申请日：2019-10-14
发明人： Gun Hyung Park
IPC分类号： H01M8/04537 , H01M8/04858 , H01M10/48 , H01M16/00 , H01M8/04746 , B60L58/30 , B60L3/12 , B60L50/70 , B60K6/32
摘要： A method of measuring impedance of a fuel cell stack in a vehicle during driving of the vehicle includes: determining whether an impedance measurement of the fuel cell stack is requested during driving of the vehicle driven by power of the fuel cell stack; turning off a first relay connected between the fuel cell stack and a battery charged by the fuel cell stack when the impedance measurement of the fuel cell stack is requested; connecting a stack load to the fuel cell stack via a second relay and supplying air to the fuel cell stack; and measuring the impedance of the fuel cell stack.
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公开(公告)号：US20190288308A1
公开(公告)日：2019-09-19
申请号：US16017103
申请日：2018-06-25
发明人： Gun Hyung Park , Hyun Hie Kim
IPC分类号： H01M8/04228 , H01M8/04303 , H01M8/04537 , H01M8/04858 , B60L11/18
摘要： A stop control method for a fuel cell system of a vehicle can include: determining whether a fuel cell of the fuel cell system is shut down when a key-off signal is received; comparing a voltage of the fuel cell with a first set voltage when it is determined that the fuel cell is not shut down; controlling a voltage of a high-voltage terminal downwardly when the voltage of the fuel cell is larger than the first set voltage; turning on a cathode oxygen depletion (COD) relay a first time after controlling the voltage of the high-voltage terminal downwardly; turning off a high-voltage terminal relay a first time after turning on the COD relay, the high-voltage relay disposed between the fuel cell and the high-voltage terminal; and shutting down the fuel cell and performing key-off control after turning off the high-voltage terminal relay.
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公开(公告)号：US20190165398A1
公开(公告)日：2019-05-30
申请号：US15985163
申请日：2018-05-21
发明人： Jeong Kyu Park , Chang Hwan Ye , Gun Hyung Park , Sae Byeok Seung , Sang Chul Yeom , Seung Yoon Lee
IPC分类号： H01M8/04828 , H02J7/00 , H01M8/04537 , H01M8/04007 , H01M10/46 , B60L7/10 , B60L11/18 , B60K11/02
摘要： A cathode oxygen depletion (COD) control method is provided. The method includes determining whether a COD heater operates and calculating power generation and power consumption when the COD heater operates. Additionally, the power consumption is adjusted by comparing the calculated power generation and power consumption.
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公开(公告)号：US20180026282A1
公开(公告)日：2018-01-25
申请号：US15335338
申请日：2016-10-26
发明人： Kyu Il Lee , Gun Hyung Park , Sung Gone Yoon
IPC分类号： H01M8/04537 , H01M8/04992 , H01M8/04303 , H01M8/04828
CPC分类号： H01M8/04552 , H01M8/04303 , H01M8/04873 , H01M8/04955 , H01M8/04992 , H01M16/006 , H01M2250/20 , Y02T90/32
摘要： A restarting system, a controller, and a restarting method for a fuel cell vehicle are provided. The restarting system includes a consumption resistor connected in parallel to a high voltage line that connects between a fuel cell and a high voltage battery and a relay that adjusts the connection between the consumption resistor and the high voltage line. A controller operates the relay and when a shutdown request signal of the vehicle is input, charges the high voltage battery with residual generated power of the fuel cell or connects the relay to the consumption resistor to consume the residual generated power as the consumption resistance. When a starting request signal of the vehicle is input, the controller is reset when an output voltage of the fuel cell is reduced to be equal to or less than a required voltage and then output a starting permission signal of the vehicle.
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公开(公告)号：US11411229B2
公开(公告)日：2022-08-09
申请号：US16535753
申请日：2019-08-08
发明人： Gun Hyung Park , Kyung Won Suh
IPC分类号： H01M8/04119 , H01M8/04537 , H01M8/0432 , H01M8/04492
摘要： A water removing system and method of a fuel cell vehicle using impedance are provided. The system measures measure the low frequency impedance of a fuel cell stack when a fuel cell system is stopped in a low temperature condition, and adjusts the air supply amount and supply time for removing the water supercharged into the fuel cell stack using the measured low frequency impedance. Thus, air is prevented from being unnecessarily supercharged into the fuel cell stack and at the same time, the water remaining in the fuel cell stack is removed.
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公开(公告)号：US10964965B2
公开(公告)日：2021-03-30
申请号：US15985163
申请日：2018-05-21
发明人： Jeong Kyu Park , Chang Hwan Ye , Gun Hyung Park , Sae Byeok Seung , Sang Chul Yeom , Seung Yoon Lee
IPC分类号： H01M8/04537 , B60L7/10 , H02J7/14 , H01M8/04828 , H02J7/00 , H01M8/04007 , H01M10/46 , B60K11/02 , B60L58/34 , H02J7/34
摘要： A cathode oxygen depletion (COD) control method is provided. The method includes determining whether a COD heater operates and calculating power generation and power consumption when the COD heater operates. Additionally, the power consumption is adjusted by comparing the calculated power generation and power consumption.
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公开(公告)号：US20200168930A1
公开(公告)日：2020-05-28
申请号：US16601123
申请日：2019-10-14
发明人： Gun Hyung Park
IPC分类号： H01M8/04537 , H01M8/04746 , H01M8/04858 , H01M10/48 , H01M16/00
摘要： A method of measuring impedance of a fuel cell stack in a vehicle during driving of the vehicle includes: determining whether an impedance measurement of the fuel cell stack is requested during driving of the vehicle driven by power of the fuel cell stack; turning off a first relay connected between the fuel cell stack and a battery charged by the fuel cell stack when the impedance measurement of the fuel cell stack is requested; connecting a stack load to the fuel cell stack via a second relay and supplying air to the fuel cell stack; and measuring the impedance of the fuel cell stack.
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公开(公告)号：US10938043B2
公开(公告)日：2021-03-02
申请号：US15335338
申请日：2016-10-26
发明人： Kyu Il Lee , Gun Hyung Park , Sung Gone Yoon
IPC分类号： H01M8/04537 , H01M16/00 , H01M8/04955 , H01M8/04303 , H01M8/04858 , H01M8/04992
摘要： A restarting system, a controller, and a restarting method for a fuel cell vehicle are provided. The restarting system includes a consumption resistor connected in parallel to a high voltage line that connects between a fuel cell and a high voltage battery and a relay that adjusts the connection between the consumption resistor and the high voltage line. A controller operates the relay and when a shutdown request signal of the vehicle is input, charges the high voltage battery with residual generated power of the fuel cell or connects the relay to the consumption resistor to consume the residual generated power as the consumption resistance. When a starting request signal of the vehicle is input, the controller is reset when an output voltage of the fuel cell is reduced to be equal to or less than a required voltage and then output a starting permission signal of the vehicle.
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公开(公告)号：US10923747B2
公开(公告)日：2021-02-16
申请号：US16017103
申请日：2018-06-25
发明人： Gun Hyung Park , Hyun Hie Kim
IPC分类号： H01M8/00 , H01M8/04228 , H01M8/04303 , H01M8/04858 , H01M8/04537 , B60L53/00 , B60L50/72
摘要： A stop control method for a fuel cell system of a vehicle can include: determining whether a fuel cell of the fuel cell system is shut down when a key-off signal is received; comparing a voltage of the fuel cell with a first set voltage when it is determined that the fuel cell is not shut down; controlling a voltage of a high-voltage terminal downwardly when the voltage of the fuel cell is larger than the first set voltage; turning on a cathode oxygen depletion (COD) relay a first time after controlling the voltage of the high-voltage terminal downwardly; turning off a high-voltage terminal relay a first time after turning on the COD relay, the high-voltage relay disposed between the fuel cell and the high-voltage terminal; and shutting down the fuel cell and performing key-off control after turning off the high-voltage terminal relay.
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公开(公告)号：US10688869B2
公开(公告)日：2020-06-23
申请号：US15655348
申请日：2017-07-20
发明人： Seung Yoon Lee , Gun Hyung Park , Kyu Il Lee , Dae Jong Kim
IPC分类号： B60L58/12 , B60L1/00 , H01M10/44 , H01M16/00 , H01M8/04537 , H01M8/04746 , B60L50/72 , B60L58/40 , B60L50/75
摘要： A system for controlling a state of charge (SOC) of a battery includes a battery SOC control apparatus for controlling a revolution per minute (RPM) of an air blower based on the SOC of the battery and a number of charge/discharge cycles of the battery in a case where a vehicle is in a constant current driving state, and a memory device for storing the SOC of the battery calculated by the battery SOC control apparatus.
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