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公开(公告)号：US08785071B2
公开(公告)日：2014-07-22
申请号：US13288482
申请日：2011-11-03
申请人： Steven R. Falta , Rainer Pechtold , Daniel C. Di Fiore , Donald H. Keskula , Matthew A. Lang , Michael Leykauf , Joseph N. Lovria , Oliver Maier
发明人： Steven R. Falta , Rainer Pechtold , Daniel C. Di Fiore , Donald H. Keskula , Matthew A. Lang , Michael Leykauf , Joseph N. Lovria , Oliver Maier
CPC分类号： H01M8/04089 , H01M8/04201 , H01M8/04388 , H01M8/04425 , H01M8/0494
摘要： A system and method for controlling hydrogen gas flow to an anode side of a fuel cell stack using a pressure regulator in the event that an injector that normally injects the hydrogen gas into the fuel cell stack has failed in a stuck open position. During normal operation, the control of the injector is determined based on the pressure of an anode sub-system and the position of the pressure regulator is determined based on a supply pressure between the pressure regulator and the injector. If it is determined that the injector is stuck in an open position, then the position of the pressure regulator is controlled to the anode pressure instead of the supply pressure. If the pressure regulator is an electrical pressure regulator, then it is pulsed to mimic normal system operation. Alternately, another valve, such as a shut-off valve, can be employed to provide the flow pulsing.
摘要翻译： 在通常将氢气注入到燃料电池堆中的喷射器处于卡住打开位置的情况下，使用压力调节器控制向燃料电池堆的阳极侧的氢气流动的系统和方法。 在正常操作期间，基于阳极子系统的压力来确定喷射器的控制，并且基于压力调节器和喷射器之间的供应压力来确定压力调节器的位置。 如果确定喷射器被卡在打开位置，则压力调节器的位置被控制到阳极压力而不是供应压力。 如果压力调节器是电压调节器，则它被脉冲以模拟正常的系统操作。 或者，可以使用另一个阀，例如截止阀来提供流动脉冲。
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公开(公告)号：US09105887B2
公开(公告)日：2015-08-11
申请号：US13315186
申请日：2011-12-08
CPC分类号： H01M8/04089 , G05B13/0215 , H01M8/00 , H01M8/04 , H01M8/04753 , H01M8/04992 , Y02E60/50
摘要： A system and method for controlling an injector in a fuel cell system. The method provides a variety of injector pulse widths for at least one predetermined duty cycle and determines an injector close time for each of the variety of injector pulse widths. The method also determines an error for the at least one predetermined duty cycle based on each of the provided injector pulse widths and uses the injector pulse width with the lowest error for the at least one predetermined duty cycle.
摘要翻译： 一种用于控制燃料电池系统中的喷射器的系统和方法。 该方法为至少一个预定的工作周期提供各种喷射器脉冲宽度，并为各种喷射器脉冲宽度确定喷射器关闭时间。 该方法还基于所提供的喷射器脉冲宽度中的每一个确定至少一个预定占空比的误差，并且在至少一个预定占空比中使用具有最低误差的喷射器脉冲宽度。
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3.发明授权Anode gas composition utilizing H2 injection pressure wave propagation rates 有权利用H2注射压力波传播速率的阳极气体组成公开(公告)号：US08603688B2
公开(公告)日：2013-12-10
申请号：US12913324
申请日：2010-10-27
IPC分类号： H01M8/04
CPC分类号： H01M8/04462 , H01M8/04305 , H01M8/04514 , H01M8/04992
摘要： A system for determining the concentration of hydrogen in an anode sub-system of a fuel cell system. The fuel cell system includes at least one fuel cell, an anode inlet, an anode outlet, an anode recirculation line, a source of hydrogen gas and an injector for injecting the hydrogen gas. First and second acoustic sensors are provided in the anode recirculation line and are spaced a known distance from each other. A controller that is responsive to the output signals from the first and second acoustic sensors determines the concentration of hydrogen gas in the anode recirculation line based on the time between when the controller receives the sensor signal from the first sensor and receives the sensor signal from the second sensor.
摘要翻译： 一种用于确定燃料电池系统的阳极子系统中的氢浓度的系统。 燃料电池系统包括至少一个燃料电池，阳极入口，阳极出口，阳极再循环管线，氢气源和用于注入氢气的注射器。 第一和第二声学传感器设置在阳极再循环管线中并且彼此隔开已知的距离。 响应于来自第一和第二声学传感器的输出信号的控制器基于控制器从第一传感器接收到传感器信号并从第一传感器接收传感器信号之间的时间来确定阳极再循环管线中的氢气浓度 第二传感器。
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公开(公告)号：US20120052408A1
公开(公告)日：2012-03-01
申请号：US12868487
申请日：2010-08-25
CPC分类号： H01M8/04992 , H01M8/04097 , H01M8/04111 , H01M8/04231 , H01M8/04402 , H01M8/04462 , H01M8/04746 , H01M8/04791
摘要： A system and method for correcting an estimation of nitrogen in an anode side of a fuel cell stack. The system includes a fuel cell stack and a pressure sensor for measuring pressure in an anode sub-system. The system also includes a controller configured to control the estimation of nitrogen permeation from the cathode side to the anode side of the stack, where the controller determines if the pressure in the anode sub-system equilibrates with atmospheric pressure in a shorter period of time after shutdown compared to the time necessary for the anode sub-system to reach approximately atmospheric pressure after a previous shutdown or calibrated time value, and corrects the estimation of nitrogen in the anode side of the stack if the pressure equilibrates in a shorter period of time.
摘要翻译： 一种用于校正燃料电池堆的阳极侧的氮的估计的系统和方法。 该系统包括用于测量阳极子系统中的压力的燃料电池堆和压力传感器。 该系统还包括控制器，其被配置为控制从堆的阴极侧到阳极侧的氮气渗透的估计，其中控制器确定阳极子系统中的压力是否在大气压力之后在更短的时间段内平衡 与阳极子系统在先前停机或校准时间值之后达到大致压力所需的时间相比，如果压力在更短的时间内平衡，则校正堆叠阳极侧的氮气的估计。
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公开(公告)号：US09105888B2
公开(公告)日：2015-08-11
申请号：US13268043
申请日：2011-10-07
CPC分类号： H01M8/04097 , H01M8/04164 , H01M8/04179 , H01M8/04231 , H01M8/04402 , H01M8/04492 , H01M8/04514 , H01M8/04761 , H01M8/04776 , H01M8/04843 , H01M8/04992 , H01M2008/1095 , Y02E60/50
摘要： A combined water drain and diluent gas purge valve routes fluid from the anode side of a fuel cell to the cathode inlet. When a purge of diluent gas is requested, the valve opens, draining any liquid present in the sump of a water separation device, for example. After the liquid has drained, the diluent gas is purged. An anode bleed model using fuel injector feedback can determine the amount of gas exiting the valve, and can request the valve to close once the required amount of diluent is purged. During operation, an amount of hydrogen may exit the valve. Hydrogen passing through the valve can be catalytically consumed once it reaches the cathode electrode, causing the cathode exhaust, and the fuel cell exhaust to have a reduced hydrogen content.
摘要翻译： 组合的排水和稀释气体吹扫阀将流体从燃料电池的阳极侧引导到阴极入口。 当要求吹扫稀释气体时，例如，阀打开，排出存在于水分离装置的贮槽中的任何液体。 液体排出后，稀释气体被清除。 使用燃料喷射器反馈的阳极排放模型可以确定离开阀的气体的量，并且一旦清除了所需量的稀释剂就可以要求阀关闭。 在运行期间，一定量的氢气可能会离开阀门。 一旦达到阴极电极，通过阀门的氢气就可以被催化消耗，导致阴极排气，并且燃料电池排气管的氢含量降低。
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公开(公告)号：US20130089797A1
公开(公告)日：2013-04-11
申请号：US13268043
申请日：2011-10-07
IPC分类号： H01M8/06
CPC分类号： H01M8/04097 , H01M8/04164 , H01M8/04179 , H01M8/04231 , H01M8/04402 , H01M8/04492 , H01M8/04514 , H01M8/04761 , H01M8/04776 , H01M8/04843 , H01M8/04992 , H01M2008/1095 , Y02E60/50
摘要： A combined water drain and diluent gas purge valve routes fluid from the anode side of a fuel cell to the cathode inlet. When a purge of diluent gas is requested, the valve opens, draining any liquid present in the sump of a water separation device, for example. After the liquid has drained, the diluent gas is purged. An anode bleed model using fuel injector feedback can determine the amount of gas exiting the valve, and can request the valve to close once the required amount of diluent is purged. During operation, an amount of hydrogen may exit the valve. Hydrogen passing through the valve can be catalytically consumed once it reaches the cathode electrode, causing the cathode exhaust, and the fuel cell exhaust to have a reduced hydrogen content.
摘要翻译： 组合的排水和稀释气体吹扫阀将流体从燃料电池的阳极侧引导到阴极入口。 当要求吹扫稀释气体时，例如，阀打开，排出存在于水分离装置的贮槽中的任何液体。 液体排出后，稀释气体被清除。 使用燃料喷射器反馈的阳极排放模型可以确定离开阀的气体的量，并且一旦清除了所需量的稀释剂就可以要求阀关闭。 在运行期间，一定量的氢气可能会离开阀门。 一旦达到阴极电极，通过阀门的氢气就可以被催化消耗，导致阴极排气，并且燃料电池排气管的氢含量降低。
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7.发明申请DIAGNOSIS AND REMEDIATION OF LOW ANODE HYDROGEN PARTIAL PRESSURE IN A PEM FUEL CELL SYSTEM 有权PEM燃料电池系统中低阳极部分压力的诊断和补救公开(公告)号：US20120028152A1
公开(公告)日：2012-02-02
申请号：US12844423
申请日：2010-07-27
IPC分类号： H01M8/04
CPC分类号： H01M8/04559 , H01M8/04447 , H01M8/04589 , H01M8/04798 , H01M8/0488 , H01M2008/1095
摘要： A system and method for preventing anode reactant starvation. The system includes a hydrogen source, an anode bleed valve, and a cell voltage monitor. The system also includes an anode sub-system pressure sensor and a controller configured to control the anode sub-system. The controller determines the average cell voltage and estimates the hydrogen molar fraction and/or nitrogen molar fraction in the anode sub-system. The controller also receives measurement data from the cell voltage monitor and the pressure sensor, and determines whether there is a decrease in the minimum cell voltage in response to changes in the anode pressure. If the controller detects a decrease in the minimum cell voltage in response to changes in the anode pressure, the controller corrects for the decrease by increasing anode pressure and/or by decreasing the molar fraction of nitrogen in the anode sub-system.
摘要翻译： 一种用于防止阳极反应物饥饿的系统和方法。 该系统包括氢源，阳极放电阀和电池电压监视器。 该系统还包括阳极子系统压力传感器和被配置为控制阳极子系统的控制器。 控制器确定平均电池电压并估计阳极子系统中的氢摩尔分数和/或氮摩尔分数。 控制器还从电池电压监视器和压力传感器接收测量数据，并且确定响应于阳极压力的变化是否存在最小电池电压的降低。 如果控制器响应于阳极压力的变化而检测到最小电池电压的降低，则控制器通过增加阳极压力和/或通过降低阳极子系统中的氮的摩尔分数来校正该降低。
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8.发明授权Diagnosis and remediation of low anode hydrogen partial pressure in a PEM fuel cell system 有权PEM燃料电池系统中低阳极氢分压的诊断和修复公开(公告)号：US08673515B2
公开(公告)日：2014-03-18
申请号：US12844423
申请日：2010-07-27
IPC分类号： H01M8/04
CPC分类号： H01M8/04559 , H01M8/04447 , H01M8/04589 , H01M8/04798 , H01M8/0488 , H01M2008/1095
摘要： A system and method for preventing anode reactant starvation. The system includes a hydrogen source, an anode bleed valve, and a cell voltage monitor. The system also includes an anode sub-system pressure sensor and a controller configured to control the anode sub-system. The controller determines the average cell voltage and estimates the hydrogen molar fraction and/or nitrogen molar fraction in the anode sub-system. The controller also receives measurement data from the cell voltage monitor and the pressure sensor, and determines whether there is a decrease in the minimum cell voltage in response to changes in the anode pressure. If the controller detects a decrease in the minimum cell voltage in response to changes in the anode pressure, the controller corrects for the decrease by increasing anode pressure and/or by decreasing the molar fraction of nitrogen in the anode sub-system.
摘要翻译： 一种用于防止阳极反应物饥饿的系统和方法。 该系统包括氢源，阳极放电阀和电池电压监视器。 该系统还包括阳极子系统压力传感器和被配置为控制阳极子系统的控制器。 控制器确定平均电池电压并估计阳极子系统中的氢摩尔分数和/或氮摩尔分数。 控制器还从电池电压监视器和压力传感器接收测量数据，并且确定响应于阳极压力的变化是否存在最小电池电压的降低。 如果控制器响应于阳极压力的变化而检测到最小电池电压的降低，则控制器通过增加阳极压力和/或通过降低阳极子系统中的氮的摩尔分数来校正该降低。
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公开(公告)号：US08507141B2
公开(公告)日：2013-08-13
申请号：US12868487
申请日：2010-08-25
IPC分类号： H01M8/04
CPC分类号： H01M8/04992 , H01M8/04097 , H01M8/04111 , H01M8/04231 , H01M8/04402 , H01M8/04462 , H01M8/04746 , H01M8/04791
摘要： A system and method for correcting an estimation of nitrogen in an anode side of a fuel cell stack. The system includes a fuel cell stack and a pressure sensor for measuring pressure in an anode sub-system. The system also includes a controller configured to control the estimation of nitrogen permeation from the cathode side to the anode side of the stack, where the controller determines if the pressure in the anode sub-system equilibrates with atmospheric pressure in a shorter period of time after shutdown compared to the time necessary for the anode sub-system to reach approximately atmospheric pressure after a previous shutdown or calibrated time value, and corrects the estimation of nitrogen in the anode side of the stack if the pressure equilibrates in a shorter period of time.
摘要翻译： 一种用于校正燃料电池堆的阳极侧的氮的估计的系统和方法。 该系统包括用于测量阳极子系统中的压力的燃料电池堆和压力传感器。 该系统还包括控制器，其被配置为控制从堆的阴极侧到阳极侧的氮气渗透的估计，其中控制器确定阳极子系统中的压力是否在大气压力之后在更短的时间段内平衡 与阳极子系统在先前停机或校准时间值之后达到大致压力所需的时间相比，如果压力在更短的时间内平衡，则校正堆叠阳极侧的氮气的估计。
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公开(公告)号：US20130115540A1
公开(公告)日：2013-05-09
申请号：US13288482
申请日：2011-11-03
申请人： Steven R. Falta , Rainer Pechtold , Daniel C. Di Fiore , Donald H. Keskula , Matthew A. Lang , Michael Leykauf , Joseph N. Lovria , Oliver Maier
发明人： Steven R. Falta , Rainer Pechtold , Daniel C. Di Fiore , Donald H. Keskula , Matthew A. Lang , Michael Leykauf , Joseph N. Lovria , Oliver Maier
IPC分类号： H01M8/04
CPC分类号： H01M8/04089 , H01M8/04201 , H01M8/04388 , H01M8/04425 , H01M8/0494
摘要： A system and method for controlling hydrogen gas flow to an anode side of a fuel cell stack using a pressure regulator in the event that an injector that normally injects the hydrogen gas into the fuel cell stack has failed in a stuck open position. During normal operation, the control of the injector is determined based on the pressure of an anode sub-system and the position of the pressure regulator is determined based on a supply pressure between the pressure regulator and the injector. If it is determined that the injector is stuck in an open position, then the position of the pressure regulator is controlled to the anode pressure instead of the supply pressure. If the pressure regulator is an electrical pressure regulator, then it is pulsed to mimic normal system operation. Alternately, another valve, such as a shut-off valve, can be employed to provide the flow pulsing.
摘要翻译： 在通常将氢气注入到燃料电池堆中的喷射器处于卡住打开位置的情况下，使用压力调节器控制向燃料电池堆的阳极侧的氢气流动的系统和方法。 在正常操作期间，基于阳极子系统的压力来确定喷射器的控制，并且基于压力调节器和喷射器之间的供应压力来确定压力调节器的位置。 如果确定喷射器被卡在打开位置，则压力调节器的位置被控制到阳极压力而不是供应压力。 如果压力调节器是电压调节器，则它被脉冲以模拟正常的系统操作。 或者，可以使用另一个阀，例如截止阀来提供流动脉冲。
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