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    • 23. 发明授权
    • 연료전지 스택의 상태 진단 장치
    • 用于诊断燃料电池堆状态的装置
    • KR101592768B1
    • 2016-02-12
    • KR1020140128904
    • 2014-09-26
    • 현대자동차주식회사
    • 정귀성원상복금영범고재준
    • H01M8/04
    • B60L11/1881H01M8/04559H01M8/04679H01M2250/20Y02T90/32H01M8/04649
    • 본발명은연료전지스택의상태진단장치에관한것으로, 연료전지스택에듀티비가 0.5인단일주파수의직사각파를인가한후 연료전지스택의전압을측정하고, 상기측정된전압을주파수변환하여상기직사각파주파수의짝수배의고조파성분을검출한후, 상기검출된고조파성분의크기를기반으로연료전지스택의상태를진단함으로써, 연료전지스택의직류전류에교류전류를중첩시키기위해직류전압을승압하는 DC-DC 컨버터와상기승압된직류전압을교류로변환하는인버터를구비하지않고도연료전지스택의상태를진단할수 있는연료전지스택의상태진단장치를제공하고자한다. 이를위하여, 본발명은연료전지스택의상태진단장치에있어서, 구동주파수를기반으로파워트랜지스터를온/오프시키는구동기; 상기구동기의제어에따라구동되어연료전지스택의전류에듀티비가 0.5인단일주파수의직사각파전류성분이포함되도록하는상기파워트랜지스터; 및상기구동주파수를설정하며, 상기연료전지스택의전압을측정한후 주파수로변환하여상기직사각파주파수의짝수배고조파성분을검출하고, 상기검출된고조파성분의크기를기반으로상기연료전지스택의상태를진단하는진단제어부를포함한다.
    • 本发明涉及一种诊断燃料电池堆状态的装置。 本发明的目的是提供一种用于诊断燃料电池堆的状态的装置,其能够诊断燃料电池堆的状态,而不需要DC-DC转换器提高直流电压,并且逆变器转换升高的直流电压 通过向燃料电池堆施加占空比为0.5的单频矩形波,然后测量燃料电池堆的电压并将测量电压的频率转换为交流电流,以交流电流与直流电重叠 检测矩形波频率偶数倍的谐波含量,然后根据谐波含量的大小诊断燃料电池堆的状态。 为了实现这一点,本发明关于用于诊断燃料电池堆的状态的装置包括:致动器基于驱动频率接通/关闭功率晶体管; 通过控制致动器来操作的功率晶体管允许占空比为0.5的单频矩形波被包括在燃料电池堆的电流中; 以及诊断控制单元,通过测量燃料电池堆的电压并将其转换为频率并基于谐波的大小来诊断燃料电池堆的状态来检测偶数倍的矩形波的频率的谐波含量 内容。
    • 25. 发明授权
    • 연료전지 스택 진단 신호 설정 방법 및 시스템
    • 设置燃料电池堆诊断信号的方法和系统
    • KR101448787B1
    • 2014-10-13
    • KR1020130059728
    • 2013-05-27
    • 현대자동차주식회사현대오트론 주식회사
    • 정귀성금영범김억수박현석
    • H01M8/04H01M8/02
    • The present invention relates to a method and a system for configuring a diagnosis signal for a fuel cell stack that can configure a diagnosis signal necessary for diagnosing the malfunction of a fuel cell stack to be able to be used optimally for the hardware specifications of a determined malfunction diagnosis system. The method for configuring a diagnosis signal for a fuel cell stack according to an embodiment of the present invention comprises the following steps: inputting an alternating current signal with the combination of one or two frequencies into a fuel cell stack to be diagnosed; measuring the voltage of the fuel cell stack, which is induced by the input alternating current signal, using a determined number of sampling kinds, and measuring the value of total harmonic distortion (THD) based on the measured voltage of the fuel cell stack and the alternating current signal; repeating the step of inputting the alternating current signal and the step of measuring the value of THD a predetermined number of times; confirming the frequency of the alternating current signal and the sampling number corresponding to the greatest value of THD of the measured values if the repetition has been conducted the predetermined number of times; and configuring the frequency of the alternating current signal and the sampling number corresponding to the greatest value of THD to be the frequency of the alternating current signal for diagnosing a fuel cell stack and the sampling number respectively.
    • 本发明涉及一种用于配置燃料电池堆的诊断信号的方法和系统,该燃料电池堆可以配置诊断燃料电池堆的故障所需的诊断信号,以便能够最佳地用于确定的燃料电池堆的硬件规格 故障诊断系统。 根据本发明实施例的用于配置燃料电池堆的诊断信号的方法包括以下步骤:将具有一个或两个频率的组合的交流信号输入到待诊断的燃料电池堆中; 使用确定数量的采样种类测量由输入交流信号感应的燃料电池堆的电压,并且基于燃料电池堆的测量电压和所测量的总谐波失真(THD)的值来测量总谐波失真(THD)的值 交流信号; 重复输入交流信号的步骤和测量THD的值预定次数的步骤; 如果重复已经进行预定次数,则确认交流信号的频率和对应于测量值的最大THD值的采样数; 并且将交流信号的频率和对应于THD的最大值的采样数分别构成用于诊断燃料电池堆的交流信号的频率和采样数。
    • 26. 发明公开
    • 연료전지차량의 전기안전시스템
    • 燃料电池车用电气安全系统
    • KR1020140110170A
    • 2014-09-17
    • KR1020130023114
    • 2013-03-05
    • 현대자동차주식회사기아자동차주식회사
    • 정귀성김주한한수동최서호김세훈금영범박용선
    • B60L11/18H01M8/00
    • The present invention introduces an electric safety system for a fuel cell vehicle, which includes a hydrogen valve arranged on a hydrogen supplying line of a fuel cell stack; a driving motor part which is connected to the fuel cell stack by a first relay and receives electric power to drive the vehicle; a resistance part which is connected to the fuel cell stack by a second relay and lowers residual voltages of the fuel cell stack; and a controlling part. The controlling part closes the first relay and opens the second relay while the vehicle runs. When crash signals of the vehicle are received, the controlling part closes the hydrogen valve, opens the first relay, and closes the second relay.
    • 本发明引入了一种燃料电池车辆的电气安全系统,其包括设置在燃料电池堆的供氢管线上的氢气阀; 驱动电动机部,其通过第一继电器与燃料电池堆连接并接收电力以驱动车辆; 电阻部分,其通过第二继电器连接到燃料电池堆,并降低燃料电池堆的残余电压; 和控制部分。 控制部分关闭第一个继电器并在车辆行驶时打开第二个继电器。 当接收到车辆的碰撞信号时,控制部分关闭氢气阀,打开第一个继电器并关闭第二个继电器。