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    • 3. 发明授权
    • Dual anomaly judgment device for a fuel cell
    • 燃料电池双异常判别装置
    • US07882728B2
    • 2011-02-08
    • US11920350
    • 2006-06-06
    • Mikio KizakiOsamu Yumita
    • Mikio KizakiOsamu Yumita
    • G01M3/26
    • B60L11/1881B60L3/0046B60L3/0053B60L11/1892H01M8/04201H01M8/04425H01M8/04664H01M2250/20Y02T90/32Y02T90/34
    • There is provided an anomaly judgment device that is capable of detecting an abnormal state of a system highly accurately and obtaining an accurate result. The anomaly judgment device may include a plurality of anomaly judgment devices for judging an anomaly of the system and, in cases where it is judged by the plurality of anomaly judgment devices that there is an anomaly, a judgment device judges that a system anomaly exists. Hence, even in the event of a localized abnormal state judgment by one anomaly judgment device or failure, a final judgment is not made based on that anomaly alone, and at least one other anomaly judgment is made, whereby erroneous judgments can be eliminated and a highly accurate anomaly judgment is possible.
    • 提供了能够高精度地检测系统的异常状态并获得准确结果的异常判断装置。 异常判断装置可以包括用于判断系统的异常的多个异常判断装置,在多个异常判断装置判断有异常的情况下,判断装置判断存在系统异常。 因此,即使在通过一个异常判断装置的局部异常状态判断或失败的情况下,也不会单独根据该异常进行最终判断,并且进行至少一个其他异常判断,从而可以消除错误的判断,并且 高精度的异常判断是可能的。
    • 5. 发明申请
    • Fuel Cell System
    • 燃料电池系统
    • US20090169934A1
    • 2009-07-02
    • US11922874
    • 2006-06-30
    • Kota ManabeMikio KizakiNobuyuki OrihashiShigetaka HamadaMasahiro Shige
    • Kota ManabeMikio KizakiNobuyuki OrihashiShigetaka HamadaMasahiro Shige
    • H01M8/04
    • H01M8/04649G01R31/3662H01M8/04291H01M8/04447H01M8/04492H01M8/04723H01M8/04753H01M8/04761H01M2008/1095
    • A fuel cell system according to the present invention is characterized by comprising a fuel cell, measurement means for measuring impedances of the fuel cell in two kinds or more of frequency regions, and first judgment means for judging two or more parameters concerned with an internal state of the fuel cell based on measurement results of the impedances in the respective frequency regions. According to such a constitution, the impedances in the two or more types of frequency regions (a high frequency region, a low frequency region and the like) are measured to judge two or more parameters such as a wet state of an electrolytic film of the fuel cell and a supply state of a fuel gas, which are concerned with the internal state of the fuel cell based on this measurement result. Since such judgment is performed, as compared with the conventional technology, the internal state of the fuel cell can accurately be grasped, and highly efficient and highly robust control of the fuel cell system can be performed.
    • 根据本发明的燃料电池系统的特征在于包括燃料电池,用于测量两种或更多种频率区域中的燃料电池的阻抗的测量装置,以及用于判断与内部状态有关的两个或更多个参数的第一判断装置 基于各个频率区域中的阻抗的测量结果。 根据这样的结构,测定两种以上的频率区域(高频区域,低频区域等)的阻抗,以判断两个以上的参数,例如电解膜的湿态 燃料电池和燃料气体的供给状态,其基于该测量结果涉及燃料电池的内部状态。 由于进行这样的判断,因此与现有技术相比,能够精确地掌握燃料电池的内部状态,能够高效率地进行燃料电池系统的高度稳定的控制。
    • 7. 发明授权
    • Fuel cell system and liquid discharging method for the same
    • 燃料电池系统和液体排放方法相同
    • US08206855B2
    • 2012-06-26
    • US11632661
    • 2005-08-04
    • Mikio Kizaki
    • Mikio Kizaki
    • H01M8/06
    • H01M8/04186
    • A fuel cell system capable of reliably and rapidly discharging liquid in a fuel cell stack to the outside is provided. In a fuel cell system having a discharge path (76) that allows discharge of at least liquid in a fuel cell stack (20), at the time of actuation of the fuel cell stack (20), reaction gas is supplied to the fuel cell stack (20) at a higher speed or in a greater amount than during normal operation of the fuel cell stack (20). By supplying the reaction gas at a high speed or in a great amount before actuation, residual liquid in the fuel cell stack (20) can be blown off and thus reliably and rapidly discharged to the outside. The residual liquid can be discharged more easily when a volume (30) is provided in the discharge path (76) or the pressure inside the fuel cell stack (20) is set to a negative level at the time of actuation thereof.
    • 提供了能够将燃料电池堆中的液体可靠地快速地排出到外部的燃料电池系统。 在燃料电池系统中,具有允许至少在燃料电池堆(20)中的液体排放的排放路径(76),在燃料电池堆(20)的致动时,将反应气体供应到燃料电池 堆叠(20)以比在燃料电池堆(20)的正常操作期间更高的速度或更大的量。 通过在致动之前高速或大量地供给反应气体,可以将燃料电池组(20)中的残留液体吹出,从而可靠且快速地排出到外部。 当在排出路径(76)中设置容积(30)或燃料电池堆(20)内部的压力在其致动时设定为负电平时,残留液体可以更容易地排出。
    • 10. 发明授权
    • Fuel cell system control device
    • 燃料电池系统控制装置
    • US08420272B2
    • 2013-04-16
    • US10589434
    • 2005-03-15
    • Masataka OtaMikio Kizaki
    • Masataka OtaMikio Kizaki
    • H01M8/04
    • H01M8/04955H01M8/04074H01M8/04253H01M8/04328H01M8/04335H01M8/04343H01M8/0435H01M8/04358H01M8/04373H01M8/04388H01M8/04402H01M8/04619H01M8/04664H01M8/04753H01M8/04761H01M8/04768H01M8/04947
    • In order to reliably avoid freezing in the generation stop state during intermittent operation, in the control device of the present invention that controls a fuel cell system to operate intermittently by switching between the generation state and the generation stop state of a fuel cell, it is determined whether to stop the generation operation during intermittent operation based on at least the temperature of a specific component that contains moisture from among the components constituting the fuel cell system. A valve, a passage, or a humidifier arranged on a flow path for a fuel gas or oxidizing gas may be selected as the specific component mentioned above. The temperature of the specific component is measured either directly by a temperature sensor provided corresponding to the specific component or indirectly based on either the operating state of the fuel cell system or the external air temperature.
    • 为了在间歇运转时可靠地避免发电停止状态下的冻结,在通过在燃料电池的发电状态和发电停止状态之间切换来控制燃料电池系统间歇地操作的本发明的控制装置中, 基于构成燃料电池系统的构成要素,至少基于含有水分的特定成分的温度来确定是否停止间歇运转时的发电运转。 可以选择布置在用于燃料气体或氧化气体的流动路径上的阀,通道或加湿器作为上述特定部件。 特定部件的温度直接由对应于特定部件的温度传感器或间接地基于燃料电池系统的运行状态或外部空气温度来测量。