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公开(公告)号：US10071651B2
公开(公告)日：2018-09-11
申请号：US14540283
申请日：2014-11-13
发明人： Jae Won Jung , Kyu II Lee , Kang Sik Jeon
摘要： A torque control method for a drive motor includes detecting, by a controller, an amount an accelerator pedal is pressed. The method also includes calculating a rate of change of the accelerator pedal based on the detected amount the accelerator pedal is pressed. Further, the method also includes determining a time constant of a drive motor corresponding to the calculated rate of change.
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公开(公告)号：US10947982B2
公开(公告)日：2021-03-16
申请号：US15836349
申请日：2017-12-08
发明人： Dong Hun Lee , Kang Sik Jeon
摘要： A method of determining a state of cooling water is provided. The method includes operating, by a controller, a driving motor of a cooling water-circulating pump that is configured to circulate cooling water at a fixed current, a fixed torque, or a fixed power. In addition, the controller is configured to calculate an average rotation speed of the driving motor for a preset first period of time during the operation of the driving motor. Whether the circulation state of the cooling water is normal is determined based on an error between the calculated average rotation speed and a preset reference rotation speed.
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公开(公告)号：US20200313210A1
公开(公告)日：2020-10-01
申请号：US16574853
申请日：2019-09-18
发明人： Sung Ho Yang , Jae Hun Jang , Sung Mun Cho , Kang Sik Jeon
IPC分类号： H01M8/04223 , H01M8/04303 , H01M8/04828 , H01M8/04955 , H01M8/0432 , H01M8/04119 , H01M8/04228
摘要： A shutdown control method of a fuel cell is provided. The method includes applying power to a controller in a shutdown state and determining, by the controller to which the power is applied, a possibility of moisture freezing based on an estimated outdoor temperature or the temperature of a fuel cell stack. A shutdown of the fuel cell is executed by performing moisture removal from the fuel cell stack in response to determining the possibility of moisture freezing after restart.
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公开(公告)号：US10367216B2
公开(公告)日：2019-07-30
申请号：US15623255
申请日：2017-06-14
发明人： Young Pin Jin , Sung Ho Yang , Jae Young Shim , Kang Sik Jeon , Ji Hwan Yu
IPC分类号： B60L50/60 , B60L58/21 , B60L58/31 , B60L58/40 , H01M16/00 , H01M8/04537 , H01M8/04858 , H01M8/04992
摘要： A method of controlling energy supply in a fuel cell vehicle includes storing an output current of a fuel cell as a pre-limited current when a cell voltage ratio reaches a minimum cell voltage ratio, setting a limited output current of the fuel cell as the pre-limited current when the cell voltage ratio reaches a hazard cell voltage ratio, connecting first and second high-voltage batteries to a main bus terminal in parallel when the cell voltage ratio reaches the hazard cell voltage ratio, and outputting a supplementary current from the second high-voltage battery by an insufficient amount of the output current of the fuel cell for the pre-limited current, and a system for performing the same.
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公开(公告)号：US20190160966A1
公开(公告)日：2019-05-30
申请号：US15976298
申请日：2018-05-10
发明人： Jae Won Jung , Kang Sik Jeon , Seung Yoon Lee , Sung Ho Yang , Jae Young Shim , Min Gon Kim
摘要： A control method for a motor-driven vehicle is provided. The method includes calculating a correction torque of a drive motor through a difference between speeds of wheels or a variance rate of the difference between speeds of the wheels and comparing a calculated correction torque with a current required torque of the drive motor. When the calculated correction torque is greater than the current required torque, the drive motor is operated based on the current required torque. When the calculated correction torque is less than or equal to the current required torque, the drive motor is operated based on the calculated correction torque, or the required torque of the drive motor is corrected to correspond to the calculated correction torque and the drive motor is operated based on a corrected required torque of the drive motor.
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公开(公告)号：US10703213B2
公开(公告)日：2020-07-07
申请号：US15818445
申请日：2017-11-20
发明人： Kang Sik Jeon , Jae Hun Jang , Jae Young Shim , Sung Ho Yang , Young Pin Jin
IPC分类号： B60L50/70 , B60L11/18 , H01M8/04298 , H01M8/04828 , B60L58/30 , H01M8/04303 , H01M8/04291 , H01M8/04228 , H01M8/04492
摘要： A method for controlling a fuel cell vehicle is provided. The method includes setting a target purge degree of an anode gas and a target opening degree of an air pressure control valve and determining whether a fuel cell stack is in a power generation stop state. When the fuel cell stack is in the power generation stop state, when the anode gas is purged from the anode based on the target purge degree and the target opening degree, whether hydrogen in the anode gas will flow backwards to a stack enclosure is determined. When the hydrogen flows backwards, at least one of the target purge degree and the target opening degree to a level at which the backflow of the hydrogen is prevented is modified, and the anode gas from the anode based on the modified target purge degree and the modified target opening degree is purged.
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公开(公告)号：US10647219B2
公开(公告)日：2020-05-12
申请号：US15829358
申请日：2017-12-01
发明人： Jae Young Shim , Sung Ho Yang , Jae Hun Jang , Hyo Jin Park , Kang Sik Jeon , Young Pin Jin
IPC分类号： B60L58/30 , H01M8/0444 , G05D7/06 , B60L58/31 , H01M8/04664 , H01M8/043
摘要： A method for controlling a fuel cell system includes steps of: (a) determining whether hydrogen (H2) is detected in an interior space of a stack enclosure in which a fuel cell stack is accommodated; (b) stopping power generation that is performed using the stack when it is determined in step (a) that the hydrogen is detected; (c) opening a purge valve to discharge gases circulating in an anode through the purge valve, and opening a condensate discharge valve to discharge condensate contained in a water trap through the condensate discharge valve; and (d) determining whether the hydrogen discharged through at least one of the purge valve and the condensate discharge valve in step (c) flows back to the interior space based on H2 concentration in the interior space.
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公开(公告)号：US20180106256A1
公开(公告)日：2018-04-19
申请号：US15836349
申请日：2017-12-08
发明人： Dong Hun Lee , Kang Sik Jeon
CPC分类号： F04D15/0236 , F04D13/062 , F04D15/0066 , F04D15/0077 , F04D15/0088 , F04D15/0254
摘要： A method of determining a state of cooling water is provided. The method includes operating, by a controller, a driving motor of a cooling water-circulating pump that is configured to circulate cooling water at a fixed current, a fixed torque, or a fixed power. In addition, the controller is configured to calculate an average rotation speed of the driving motor for a preset first period of time during the operation of the driving motor. Whether the circulation state of the cooling water is normal is determined based on an error between the calculated average rotation speed and a preset reference rotation speed.
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公开(公告)号：US20150352975A1
公开(公告)日：2015-12-10
申请号：US14540283
申请日：2014-11-13
发明人： Jae Won Jung , Kyu Il Lee , Kang Sik Jeon
IPC分类号： B60L15/20
CPC分类号： B60L15/20 , B60L3/0084 , B60L3/12 , B60L2240/423 , B60L2250/26 , Y02T10/645 , Y02T10/7275
摘要： A torque control method for a drive motor includes detecting, by a controller, an amount an accelerator pedal is pressed. The method also includes calculating a rate of change of the accelerator pedal based on the detected amount the accelerator pedal is pressed. Further, the method also includes determining a time constant of a drive motor corresponding to the calculated rate of change.
摘要翻译： 用于驱动马达的转矩控制方法包括通过控制器检测加速踏板被按压的量。 该方法还包括基于加速踏板被按压的检测量来计算加速器踏板的变化率。 此外，该方法还包括确定与所计算的变化率相对应的驱动电动机的时间常数。
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公开(公告)号：US11289723B2
公开(公告)日：2022-03-29
申请号：US16405604
申请日：2019-05-07
发明人： Kang Sik Jeon , Jae Hun Jang , Sung Ho Yang , Sung Mun Cho
IPC分类号： H01M8/04223 , H01M8/04746 , H01M8/04082 , H01M8/04701 , H01M8/04228 , H01M8/04537 , H01M8/04992 , B60L58/34 , B60L58/33 , H01M8/0432 , B60K6/32
摘要： A control method for a fuel cell system is provided to prevent freezing in an air exhaust system of the fuel cell system. The method prevents freezing in the exhaust system by specifying a vehicle condition in which possibility of freezing is high and operating the fuel cell system based on different vehicle-specific standards. The performs air supercharging control based on an ambient temperature and a temperature of cooling water, air supercharging control by applying weights based on inclinations of a vehicle, and a forced heating logic using a COD heater.
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