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公开(公告)号：US20210367247A1
公开(公告)日：2021-11-25
申请号：US17034165
申请日：2020-09-28
发明人： Joon Yong Lee , Dong Hun Lee , Soon Woo Kwon , Sung Gone Yoon
IPC分类号： H01M8/04119 , H01M8/04746 , H01M8/04082 , H01M8/04828
摘要： A condensate water drain control system for fuel cells includes a fuel cell stack configured to generate electric power through chemical reaction, a fuel supply line configured to recirculate fuel discharged from the fuel cell stack together with fuel introduced from a fuel supply valve, a water trap located in the fuel supply line, the water trap being configured to collect condensate water discharged from the fuel cell stack, a drain valve configured to discharge the condensate water stored in the water trap to the outside when opened, and a drain controller configured to determine whether the fuel supply valve is controlled such that pressure in the fuel supply line is maintained before the drain valve is opened and to sense discharge of fuel from the fuel supply line through the drain valve upon determining that the pressure is maintained.
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公开(公告)号：US10818942B2
公开(公告)日：2020-10-27
申请号：US16055391
申请日：2018-08-06
发明人： Soon Woo Kwon , In Woo Jang , Joon Yong Lee
IPC分类号： H01M8/0444 , H01M8/04791 , H01M8/0438
摘要： A method for estimating a hydrogen concentration of a fuel cell includes estimating an initial amount of gas included at an anode side of a fuel cell, calculating a crossed over amount of gas between the anode side and a cathode side of the fuel cell and an amount of gas purged from the anode side to the outside from time when an initial amount of gas is predicted to a present time, and estimating a current hydrogen concentration at the anode side based on the predicted initial amount of gas, the calculated amount of crossed over gas, and the amount of purged gas.
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公开(公告)号：US20200303751A1
公开(公告)日：2020-09-24
申请号：US16539553
申请日：2019-08-13
发明人： Joon Yong Lee , Dong Hun Lee , Soon Woo Kwon
IPC分类号： H01M8/04119 , H01M8/0444 , H01M8/04746 , H01M8/04664
摘要： A water discharge control system and method for a fuel cell are provided. The water discharge control system includes a fuel cell stack that generates power through an internal chemical reaction, a fuel supply line that recirculates fuel discharged from the fuel cell stack and supplies the fuel to the fuel cell stack, and a water trap that is disposed in the fuel supply line to store water generated in the fuel cell stack. A drain valve is disposed in an outlet port of the water trap to block discharge of the water stored in the water trap to the outside when closed. A drain controller determines whether fuel in the fuel supply line is being discharged through the outlet port when the drain valve is in an open state and closes the drain valve upon determining that fuel is being discharged.
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公开(公告)号：US10554158B2
公开(公告)日：2020-02-04
申请号：US16034993
申请日：2018-07-13
发明人： Dong Hun Lee , Sung Do Kim , Chang Seok You , Min Su Kang , Joon Yong Lee
摘要： A motor control method that includes: calculating an ideal position of a motor rotor based on a Hall sensor signal; calculating a current position of the motor rotor based on a rotation speed of the motor rotor; and calculating a Hall sensor offset angle as the difference between the ideal position of the motor rotor and the current position of the motor rotor.
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公开(公告)号：US20190067715A1
公开(公告)日：2019-02-28
申请号：US15825766
申请日：2017-11-29
发明人： Soon Woo Kwon , Joon Yong Lee
IPC分类号： H01M8/0444 , H01M8/04089 , H01M8/04992
摘要： A system and method for controlling hydrogen purging of a fuel cell are provided. The method includes calculating a hydrogen supply amount and estimating a hydrogen consumption amount. An estimated hydrogen concentration is then corrected when a difference between the calculated hydrogen supply amount and the estimated hydrogen use amount is greater than a predetermined threshold value.
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公开(公告)号：US09007010B2
公开(公告)日：2015-04-14
申请号：US13687924
申请日：2012-11-28
发明人： Soon Woo Kwon , Joon Yong Lee
CPC分类号： H02P21/0096 , H02P6/16 , H02P21/18
摘要： Provided is a system and method for calibrating an offset of a resolver in a motor of a vehicle. More specifically, a current is applied to the −d-axis of the motor, the Vq, Vd, Iq, and Id of the motor is measured and a power input to the motor is calculated by a controller, and when the input power is not within a predetermined range, the controller adjusts the offset of the resolver to a positive or negative value accordingly.
摘要翻译： 提供了一种用于校准车辆的电动机中的旋转变压器的偏移的系统和方法。 更具体地，电流被施加到电动机的-d轴，测量电动机的Vq，Vd，Iq和Id，并且通过控制器计算输入到电动机的功率，并且当输入功率为 控制器不在预定范围内，相应地将分解器的偏移量调整为正值或负值。
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公开(公告)号：US10566637B2
公开(公告)日：2020-02-18
申请号：US16004483
申请日：2018-06-11
发明人： Joon Yong Lee , Soon Woo Kwon
IPC分类号： H01M8/04 , H01M8/0444 , H01M8/04223 , H01M8/0438 , H01M8/04746 , H01M8/04791
摘要： A hydrogen concentration estimating method for a fuel cell includes: measuring a flow rate of air supplied to a fuel cell stack, and comparing the measured flow rate of the air with a predetermined flow rate; determining a model of an air processing system according to a comparison result; and estimating hydrogen concentration of a fuel processing system based on the determined model of the air processing system.
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公开(公告)号：US20160096445A1
公开(公告)日：2016-04-07
申请号：US14616229
申请日：2015-02-06
发明人： Sung Jin Chung , Ja Hoo Koo , Joon Yong Lee , Soon Woo Kwon
IPC分类号： B60L11/18
CPC分类号： B60L11/1881 , B60L3/0053 , B60L3/12 , B60L11/1887 , B60L11/1888 , B60L2240/547 , B60L2240/80 , H01M8/043 , H01M8/04559 , H01M8/04589 , H01M8/04649 , Y02T10/7005 , Y02T90/34
摘要： A system and method for diagnosing a fuel cell stack are provided. The method includes determining, by a controller, a time at which diagnosing the fuel cell stack is required based on a plurality of factors and driving a motor adjusted to a first efficiency value for a predetermined first reference time period based on the diagnosis determination. In addition, the controller is configured to drive the motor adjusted to a second efficiency value when the first reference time period has elapsed. A state of the fuel cell stack is then diagnosed based on a voltage variance of the fuel cell stack between driving the motor adjusted to the first efficiency value and second efficiency value.
摘要翻译： 提供了用于诊断燃料电池堆的系统和方法。 该方法包括基于多个因素由控制器确定需要诊断燃料电池堆的时间，并且基于诊断确定来驱动调节到第一效率值的电动机达预定的第一参考时间段。 此外，控制器被配置为当经过第一参考时间段时驱动调节到第二效率值的电动机。 然后基于驱动被调节到第一效率值的电动机和第二效率值的电动机之间的燃料电池堆的电压变化来诊断燃料电池堆的状态。
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公开(公告)号：US20160093906A1
公开(公告)日：2016-03-31
申请号：US14569746
申请日：2014-12-14
发明人： Soon Woo Kwon , Joon Yong Lee
IPC分类号： H01M8/04
CPC分类号： H01M8/04302 , H01M8/04225 , H01M8/0491 , H01M2250/20 , Y02T90/32
摘要： A device and a method for controlling a cold start of a fuel cell system are provided and are capable of increasing a fuel cell load to reduce a cold start time using a kinetic energy storage method for a rotor of a motor for driving a fuel cell system. The method improves cold start performance by performing self-heating of a fuel cell stack based on an increase in an output current amount of a fuel cell and by restricting a motor torque simultaneously with generating the motor torque while applying a current to a motor when a vehicle stops to consume an output current of the fuel cell.
摘要翻译： 提供一种用于控制燃料电池系统的冷启动的装置和方法，并且能够使用用于驱动燃料电池系统的电动机的转子的动能储存方法来增加燃料电池负载以降低冷启动时间 。 该方法通过基于燃料电池的输出电流量的增加来执行燃料电池堆的自身加热，并且通过在产生电动机转矩的同时限制电动机转矩同时向电动机施加电流来提高冷启动性能 车辆停止以消耗燃料电池的输出电流。
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公开(公告)号：US20160006374A1
公开(公告)日：2016-01-07
申请号：US14548566
申请日：2014-11-20
发明人： Joon Yong Lee , Soon Woo Kwon
IPC分类号： H02P1/46
CPC分类号： H02P1/46 , H02P1/26 , Y02T10/7258
摘要： A system and method for a cold start of a vehicle are provided. The method includes setting a target electrical angle by adding a setting angle to a previously stored initial electrical angle of a driving motor and applying an electric current value that corresponds to the set target electrical angle to the driving motor.
摘要翻译： 提供一种用于车辆冷起动的系统和方法。 该方法包括通过将预先存储的驱动电动机的初始电角度的设定角度相加并将对应于设定的目标电角度的电流值加到驱动电动机来设定目标电角度。
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