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公开(公告)号：US20170062851A1
公开(公告)日：2017-03-02
申请号：US14695734
申请日：2015-04-24
IPC分类号： H01M8/04291 , H01M8/04492 , H01M8/241 , B60L11/18 , H01M4/92 , H01M8/2457 , H01M8/0258 , H01M8/10 , H01M8/04089 , H01M4/90
CPC分类号： H01M8/04291 , B60L58/30 , H01M4/9025 , H01M4/92 , H01M8/0258 , H01M8/04089 , H01M8/04104 , H01M8/04529 , H01M8/10 , H01M8/241 , H01M8/2457 , H01M8/2484 , H01M2004/8684 , H01M2004/8689 , H01M2008/1095 , H01M2250/20 , H01M2300/0082 , Y02T90/32
摘要： Systems and methods are disclosed that provide for a fuel cell stack assembly including stack end cells that facilitate improved diagnostic and detection capabilities. In certain embodiments, an anode side of a FC stack end cell consistent with embodiments disclosed herein may be configured to have a lower anode gas flow rate than other cells in the FC stack. The cathode side of a FC stack end cell consistent with embodiments disclosed herein may be further configured to have a higher gas flow rate than other cells in the FC stack. Embodiments of the disclosed FC stack end cells may, among other things, allow for detection of adverse conditions and/or events in a FC stack assembly prior to such conditions and/or events negatively affecting other cells in the FC stack.
摘要翻译： 公开了提供用于燃料电池堆组件的系统和方法，所述燃料电池堆组件包括促进改进的诊断和检测能力的堆叠端电池。 在某些实施例中，与本文公开的实施例一致的FC堆叠端单元的阳极侧可被配置为具有比FC堆叠中的其它单元更低的阳极气体流速。 与本文公开的实施例一致的FC堆叠端单元的阴极侧可进一步配置为具有比FC堆叠中的其它单元更高的气体流速。 所公开的FC堆栈端单元的实施例尤其可以在对FC堆栈中的其它单元造成负面影响的这些条件和/或事件之前允许检测FC堆叠组件中的不利条件和/或事件。
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公开(公告)号：US20160197366A1
公开(公告)日：2016-07-07
申请号：US14589777
申请日：2015-01-05
发明人： STEPHEN D. PACE , JUN CAI , MANISH SINHA
IPC分类号： H01M8/04
CPC分类号： H01M8/04104 , H01M8/04388 , H01M8/04402 , H01M8/04432 , H01M8/04679 , H01M8/04753 , H01M8/04783 , H01M8/04895 , H01M8/04952 , H01M2250/20 , Y02T90/32
摘要： Systems and methods for detecting and validating a leak in a fuel cell system are presented. In certain embodiments, various fuel cell stack set points may be adjusted such that adequate H2 flow data may be obtained to identify and validate an H2 leak and/or a location of such a leak. In some embodiments, H2 flow data may be obtained by adjusting certain fuel cell system operating parameters under a variety of operating conditions and/or modes and measuring flow data under such various operational conditions.
摘要翻译： 提出了用于检测和验证燃料电池系统中的泄漏的系统和方法。 在某些实施例中，可以调整各种燃料电池堆设定点，使得可以获得足够的H2流量数据来识别和验证这种泄漏的H2泄漏和/或位置。 在一些实施例中，可以通过在各种操作条件和/或模式下调节某些燃料电池系统运行参数并在这样的各种操作条件下测量流量数据来获得H2流量数据。
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公开(公告)号：US20170324101A1
公开(公告)日：2017-11-09
申请号：US15146698
申请日：2016-05-04
发明人： MANISH SINHA , JAMES A. LEISTRA , SERGIO E. GARCIA , MARK W. ROTH
IPC分类号： H01M8/04119 , H01M8/04828 , H01M8/04746 , H01M8/04089 , H01M8/04537 , H01M8/04492 , H01M8/0432 , H01M16/00 , H01M8/04791
CPC分类号： H01M8/04179 , H01M8/04104 , H01M8/0432 , H01M8/04328 , H01M8/045 , H01M8/04589 , H01M8/04753 , H01M8/04783 , H01M8/04798 , H01M8/04843 , H01M8/0494 , H01M16/006
摘要： A method for performing one or more proactive remedial actions to prevent anode flow-field flooding in an anode side of a fuel cell stack at low stack current density. The method includes identifying one or more trigger conditions that could cause the anode flow-field to flood with water, and performing the one or more proactive remedial actions in response to the identified trigger conditions that removes water from the anode side flow-field prior to the anode flooding occurring.
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公开(公告)号：US20140335432A1
公开(公告)日：2014-11-13
申请号：US13889147
申请日：2013-05-07
IPC分类号： H01M8/04
CPC分类号： H01M8/04447 , H01M8/0432 , H01M8/04559 , H01M8/04589 , H01M8/04619 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： Apparatus, methods, and systems for estimating hydrogen concentration and/or pressure in an anode compartment of a fuel cell stack in a fuel cell vehicle. In some implementations, the estimates are based on a correlation between a transient dip in voltage in response to an anode to cathode bleed event and a concentration of hydrogen in the anode compartment of a fuel cell stack. Some implementations may comprise initiating a bleed event, sensing a transient dip in voltage in response to the bleed event, and using the correlation to calculate an estimate of a concentration and/or pressure of the gas in the anode compartment. The sensitivity of the correlation and hence the accuracy of estimation may change with the power level and may be accounted for in the correlation.
摘要翻译： 用于估计燃料电池车辆中的燃料电池堆的阳极室中的氢浓度和/或压力的装置，方法和系统。 在一些实施方案中，估计基于响应于阳极至阴极渗出事件的电压瞬态下降与燃料电池堆的阳极室中的氢浓度之间的相关性。 一些实施方案可以包括启动渗出事件，响应于泄漏事件感测电压中的瞬时下降，并且使用相关性来计算阳极室中的气体的浓度和/或压力的估计。 相关性的灵敏度和因此的估计精度可以随着功率水平而变化，并且可以在相关性中考虑。
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