公开(公告)号：US09660278B2

公开(公告)日：2017-05-23

申请号：US12711144

申请日：2010-02-23

申请人： Patrick Frost ,  Daniel C. Di Fiore ,  Ralf Senner

发明人： Patrick Frost ,  Daniel C. Di Fiore ,  Ralf Senner

IPC分类号： H01M8/04 ,  H01M8/04119 ,  H01M8/04828 ,  H01M8/04089 ,  H01M8/1018

CPC分类号： H01M8/04164 ,  H01M8/04097 ,  H01M8/04843 ,  H01M2008/1095

摘要： A fuel cell system that determines the phase transition from water to gas through a bleed/drain valve in a water separation device. The fuel cell system includes a fuel cell stack having an anode side and a cathode side. An injector injects hydrogen gas into the anode side of the fuel cell stack. The water separation device receives an anode exhaust gas from the anode side of the fuel cell stack, where the water separation device includes a water holding reservoir. A controller controls the injector and the bleed/drain valve and determines when the bleed/drain valve transitions from draining water to bleeding the anode exhaust gas by comparing the flow rate through the water separation device and the flow rate through the injector.

公开(公告)号：US20110143234A1

公开(公告)日：2011-06-16

申请号：US12635429

申请日：2009-12-10

申请人： Ralf Senner ,  Daniel C. Di Fiore

发明人： Ralf Senner ,  Daniel C. Di Fiore

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M8/04097 ,  H01M8/04388 ,  H01M8/04589 ,  H01M8/04753

摘要： A fuel cell system that employs an injector/ejector for providing fresh hydrogen and anode recirculation gas to the anode side of a fuel cell stack. The injector/ejector is operated with a variable frequency so that the injector open time at low stack current densities is long enough to allow a pressure drop to be provided in the anode flow channels to push out water that may have accumulated therein. In one embodiment, the injector/ejector control provides a minimum pulse width per cycle and a maximum frequency so that as the stack current density decreases below a certain value the frequency decreases from the maximum frequency to maintain the pulse width constant at the minimum pulse width.

摘要翻译： 一种燃料电池系统，其采用喷射器/喷射器来向燃料电池堆的阳极侧提供新的氢气和阳极再循环气体。 喷射器/喷射器以可变频率操作，使得在低堆电流密度下的喷射器打开时间足够长以允许在阳极流动通道中提供压降以推出可能积聚在其中的水。 在一个实施例中，喷射器/喷射器控制提供每个周期的最小脉冲宽度和最大频率，使得当堆叠电流密度降低到特定值以下时，频率从最大频率减小，以将脉冲宽度保持在最小脉冲宽度 。

公开(公告)号：US08387441B2

公开(公告)日：2013-03-05

申请号：US12636276

申请日：2009-12-11

申请人： Steven R. Falta ,  Steven G. Goebel ,  Daniel C. Di Fiore ,  Ralf Senner

发明人： Steven R. Falta ,  Steven G. Goebel ,  Daniel C. Di Fiore ,  Ralf Senner

IPC分类号： G01M3/26

CPC分类号： G01M3/26 ,  G01F1/34 ,  G01F1/363 ,  G01F1/40 ,  G01F1/72 ,  H01M8/04388 ,  H01M8/04753 ,  H01M2008/1095

摘要： A method for determining the amount of fuel flow from a high pressure gas tank to the anode side of a fuel cell stack through pulsed injector. The anode sub-system pressure is measured just before the injector pulse and just after injector pulse and a difference between the pressures is determined. The difference between the pressures, the volume of the anode sub-system, the ideal gas constant, the anode sub-system temperature, the fuel consumed from the reaction in the fuel cell stack during the injection event and the fuel cross-over through membranes in the fuel cells of the fuel cell stack are used to determine the amount of hydrogen gas injected by the injector.

摘要翻译： 一种通过脉冲喷射器确定从高压气罐到燃料电池堆的阳极侧的燃料流量的方法。 在喷射器脉冲之前和刚好在喷射器脉冲之后测量阳极子系统压力，并确定压力之间的差。 在喷射事件期间，压力，阳极子系统的体积，理想气体常数，阳极子系统温度，燃料电池堆中的反应消耗的燃料和通过膜的燃料交叉之间的差异 在燃料电池堆的燃料电池中用于确定由喷射器喷射的氢气的量。

公开(公告)号：US08409762B2

公开(公告)日：2013-04-02

申请号：US12775149

申请日：2010-05-06

申请人： Patrick Frost ,  Darrell W. Burleigh ,  Daniel C. Di Fiore

发明人： Patrick Frost ,  Darrell W. Burleigh ,  Daniel C. Di Fiore

IPC分类号： H01M8/04

CPC分类号： H01M8/04753 ,  H01M8/04328 ,  H01M8/04388 ,  H01M8/04589

摘要： A method for adaptively controlling a fuel delivery injector in a fuel cell system, including determining a feed-forward bias for the fuel delivery injector, determining an injector flow set-point for the fuel delivery injector, monitoring stack current, determining a transient pressure correction for the stack and correcting the injector flow set-point.

摘要翻译： 一种用于自适应地控制燃料电池系统中的燃料输送喷射器的方法，包括确定用于燃料输送喷射器的前馈偏压，确定用于燃料输送喷射器的喷射器流量设定点，监测电池电流，确定瞬时压力校正 用于堆叠并校正喷射器流量设定点。

公开(公告)号：US20110274996A1

公开(公告)日：2011-11-10

申请号：US12775149

申请日：2010-05-06

申请人： Patrick Frost ,  Darrell W. Burleigh ,  Daniel C. Di Fiore

发明人： Patrick Frost ,  Darrell W. Burleigh ,  Daniel C. Di Fiore

IPC分类号： H01M8/04

CPC分类号： H01M8/04753 ,  H01M8/04328 ,  H01M8/04388 ,  H01M8/04589

摘要： A method for adaptively controlling a fuel delivery injector in a fuel cell system, including determining a feed-forward bias for the fuel delivery injector, determining an injector flow set-point for the fuel delivery injector, monitoring stack current, determining a transient pressure correction for the stack and correcting the injector flow set-point.

摘要翻译： 一种用于自适应地控制燃料电池系统中的燃料输送喷射器的方法，包括确定用于燃料输送喷射器的前馈偏压，确定用于燃料输送喷射器的喷射器流量设定点，监测电池电流，确定瞬时压力校正 用于堆叠并校正喷射器流量设定点。

公开(公告)号：US09105888B2

公开(公告)日：2015-08-11

申请号：US13268043

申请日：2011-10-07

申请人： Steven R. Falta ,  Matthew A. Lang ,  Daniel C. Di Fiore

发明人： Steven R. Falta ,  Matthew A. Lang ,  Daniel C. Di Fiore

IPC分类号： H01M8/06 ,  H01M8/04 ,  H01M8/10

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。

公开(公告)号：US20130089797A1

公开(公告)日：2013-04-11

申请号：US13268043

申请日：2011-10-07

申请人： Steven R. Falta ,  Matthew A. Lang ,  Daniel C. Di Fiore

发明人： Steven R. Falta ,  Matthew A. Lang ,  Daniel C. Di Fiore

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。

公开(公告)号：US20120028152A1

公开(公告)日：2012-02-02

申请号：US12844423

申请日：2010-07-27

申请人： Daniel I. Harris ,  Matthew A. Lang ,  Daniel C. Di Fiore

发明人： Daniel I. Harris ,  Matthew A. Lang ,  Daniel C. Di Fiore

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。

公开(公告)号：US08974975B2

公开(公告)日：2015-03-10

申请号：US13205883

申请日：2011-08-09

申请人： Daniel C. Di Fiore ,  Thomas W. Tighe

发明人： Daniel C. Di Fiore ,  Thomas W. Tighe

IPC分类号： H01M8/06 ,  H01M8/04

CPC分类号： H01M8/04753 ,  H01M8/04305 ,  H01M8/04447 ,  H01M8/04455 ,  H01M8/0447 ,  H01M8/04783 ,  H01M8/0662 ,  H01M2220/20 ,  Y02E60/50

摘要： A method for determining a rate of accumulation of nitrogen in an anode side of a fuel cell stack. The method includes determining a concentration of nitrogen in an anode loop and determining a number of moles of nitrogen in the anode loop. The method also includes determining a rate of accumulation of nitrogen in the anode loop and determining a permeability factor of nitrogen through fuel cell membranes in the fuel cell stack using the determined rate of accumulation of nitrogen in the anode loop.

摘要翻译： 一种用于确定燃料电池堆的阳极侧的氮的积聚速率的方法。 该方法包括确定阳极环中氮的浓度并确定阳极环中氮的摩尔数。 该方法还包括确定阳极回路中的氮积累速率，并使用所确定的阳极回路中的氮积累速率来确定燃料电池堆中的燃料电池膜的氮的渗透系数。

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

IPC分类号： H01M8/04 ,  H01M8/06 ,  H01M8/00

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。