公开(公告)号：US09496572B2

公开(公告)日：2016-11-15

申请号：US11858987

申请日：2007-09-21

申请人： Abdullah B. Alp ,  Akbar Chowdhury ,  Matthew C. Kirklin ,  Matthew K. Hortop ,  John P. Salvador

发明人： Abdullah B. Alp ,  Akbar Chowdhury ,  Matthew C. Kirklin ,  Matthew K. Hortop ,  John P. Salvador

IPC分类号： H01M8/04 ,  H01M8/10

CPC分类号： H01M8/04753 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04231 ,  H01M8/04302 ,  H01M8/04395 ,  H01M8/04567 ,  H01M8/04731 ,  H01M8/04805 ,  H01M8/04888 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system is provided that includes a fuel cell stack and an air compressor in communication with a cathode inlet, a hydrogen source in communication with an anode inlet, and a start-up battery adapted to power the air compressor. The start-up battery is at least one of a low-voltage battery and a high-voltage battery. A pressure sensor is in communication with the air compressor and adapted to measure a compressor outlet pressure. A power conversion module is in electrical communication with the start-up battery and the air compressor. A controller is in communication with the power conversion module and adapted to set an air compressor speed based on an available electrical energy. A closed-loop method of operating the fuel cell system at start-up is also provided, wherein an anode purge is scheduled based on an air flow rate calculated from the compressor outlet pressure and the actual speed.

摘要翻译： 提供一种燃料电池系统，其包括与阴极入口连通的燃料电池堆和空气压缩机，与阳极入口连通的氢源和适于为空气压缩机供电的启动电池。 启动电池至少是低压电池和高压电池中的一种。 压力传感器与空气压缩机连通并适于测量压缩机出口压力。 电源转换模块与起动电池和空气压缩机电连通。 控制器与电力转换模块通信，并且适于基于可用的电能来设定空气压缩机速度。 还提供了在启动时操作燃料电池系统的闭环方法，其中基于从压缩机出口压力和实际速度计算出的空气流量来排列阳极吹扫。

公开(公告)号：US08574776B2

公开(公告)日：2013-11-05

申请号：US11475695

申请日：2006-06-27

申请人： Bruce J. Clingerman ,  Jason R. Kolodziej ,  Derek S. Kilmer ,  Pinkhas A. Rapaport ,  David S. Mathews ,  Shyam Kocha ,  Abdullah B. Alp ,  Matthew K. Hortop ,  William H. Pettit

发明人： Bruce J. Clingerman ,  Jason R. Kolodziej ,  Derek S. Kilmer ,  Pinkhas A. Rapaport ,  David S. Mathews ,  Shyam Kocha ,  Abdullah B. Alp ,  Matthew K. Hortop ,  William H. Pettit

IPC分类号： H01M8/10

CPC分类号： H01M8/04955 ,  B60L11/1894 ,  B60L2240/622 ,  B60L2240/662 ,  B60L2240/80 ,  H01M8/0258 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04253 ,  H01M8/0432 ,  H01M8/04358 ,  H01M8/04365 ,  H01M8/04731 ,  H01M8/241 ,  Y02T10/7291 ,  Y02T90/16 ,  Y02T90/162 ,  Y02T90/34

摘要： A fuel cell system that employs a method for determining the potential that a freeze condition will exist after the system is shut-down based on predetermined input, such as ambient temperature, geographical location, user usage profile, date, weather reports, etc. If the system determines that a freeze condition is probable, then the system initiates a purge shut-down of the fuel cell system where water is purged out of the reactant gas flow channels. If the system determines that a freeze condition is unlikely, then it will initiate a normal shut-down procedure without purging the flow channels. The system will then periodically determine if the conditions have changed, and will initiate the purge if a freeze condition subsequently becomes probable.

摘要翻译： 一种燃料电池系统，其采用基于诸如环境温度，地理位置，用户使用情况，日期，天气报告等预定输入关闭系统之后将存在冻结状态的潜力的方法。如果 系统确定冷冻条件是可能的，则系统启动燃料电池系统的清除关闭，其中将水从反应物气体流动通道中排出。 如果系统确定冻结条件不太可能，那么它将启动一个正常的停机程序，而不需要清除流量通道。 然后，系统将定期确定条件是否已更改，并且如果冻结条件随后变为可能，将启动清除。

公开(公告)号：US08088530B2

公开(公告)日：2012-01-03

申请号：US12336193

申请日：2008-12-16

申请人： Akbar Chowdhury ,  John P. Salvador ,  Abdullah B. Alp

发明人： Akbar Chowdhury ,  John P. Salvador ,  Abdullah B. Alp

IPC分类号： H01M8/04

CPC分类号： H01M8/04231

摘要： A system and method for putting a fuel cell system in a stand-by during a system idle condition to improve system fuel efficiency. The method can include diverting the cathode airflow around the stack, reducing an airflow output from a cathode compressor to a minimum allowable set-point, opening the stack contactors to disconnect the stack from the high voltage bus and electrically isolate the stack from the rest of the system, engaging an independent load to the stack, such as end cell heaters in the stack, to suppress stack voltage, maintaining a positive pressure in the anode side of the fuel cell stack and periodically bleeding the anode into the exhaust stream. When a system power request is made removing the idle condition, the system returns to normal operation by directing the airflow back to the cathode and opening the stack contactors when an open circuit voltage is attained.

摘要翻译： 一种在系统怠速状态下将燃料电池系统置于待机状态以提高系统燃料效率的系统和方法。 该方法可以包括将阴极气流转向堆叠周围，将从阴极压缩机输出的气流减少到最小允许设定点，打开堆叠接触器以将堆叠与高压母线断开并将堆叠与其余部分电隔离 该系统将诸如堆叠中的端电池加热器的独立负载接合到堆叠中以抑制堆叠电压，在燃料电池堆的阳极侧保持正压力并且将阳极周期性地排放到排气流中。 当消除空闲状态的系统功率请求时，当达到开路电压时，通过将气流引导回阴极并打开堆叠接触器，系统恢复正常操作。

公开(公告)号：US08051546B2

公开(公告)日：2011-11-08

申请号：US12909696

申请日：2010-10-21

申请人： Abdullah B. Alp ,  David A. Arthur

发明人： Abdullah B. Alp ,  David A. Arthur

IPC分类号： H01M8/04

CPC分类号： G01K13/10 ,  G01K15/00 ,  H01M8/0267 ,  H01M8/04007 ,  H01M8/04358 ,  H01M8/04365 ,  H01M8/04679 ,  H01M8/04686 ,  H01M8/249 ,  H01M2008/1095 ,  Y10T29/49856

摘要： A method for determining whether a fuel cell stack is overheating. The method measures the temperature of end cells in the stack using end cell temperature sensors, and calculates an average end cell temperature based on the end cell temperature measurements. The method also measures the temperature of a cooling fluid being output from the fuel cell stack. The method determines if any of the measured end cell temperatures are outlying by comparing each end cell temperature measurement to the average. The method determines that the cooling fluid outlet temperature sensor has possibly failed if the cooling fluid outlet temperature is greater than the average end cell temperature and the cooling fluid outlet temperature minus the average end cell temperature is greater than a predetermined temperature value.

摘要翻译： 一种用于确定燃料电池堆是否过热的方法。 该方法使用端单元温度传感器测量堆叠中的端电池的温度，并且基于端电池温度测量来计算平均端电池温度。 该方法还测量从燃料电池堆输出的冷却流体的温度。 该方法通过将每个终端电池温度测量与平均值进行比较来确定测量的终端电池温度是否偏离。 如果冷却流体出口温度大于平均端电池温度并且冷却流体出口温度减去平均端电池温度大于预定温度值，则该方法确定冷却液出口温度传感器可能失效。

公开(公告)号：US20110143241A1

公开(公告)日：2011-06-16

申请号：US12636343

申请日：2009-12-11

申请人： Thomas W. Tighe ,  Steven G. Goebel ,  Gary M. Robb ,  Abdullah B. Alp ,  Balasubramanian Lakshmanan ,  Joseph Nicholas Lovria

发明人： Thomas W. Tighe ,  Steven G. Goebel ,  Gary M. Robb ,  Abdullah B. Alp ,  Balasubramanian Lakshmanan ,  Joseph Nicholas Lovria

IPC分类号： H01M8/00

CPC分类号： H01M8/04231 ,  H01M8/04089 ,  H01M8/04126 ,  H01M8/04223 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/04395 ,  H01M8/04455 ,  H01M8/04559 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/04753 ,  H01M8/04798 ,  H01M8/04955 ,  H01M2250/20 ,  Y02T90/32

摘要： A method for creating an oxygen depleted gas in a fuel cell system, including operating a fuel cell stack at a desired cathode stoichiometry at fuel cell system shutdown to displace a cathode exhaust gas with an oxygen depleted gas. The method further includes closing a cathode flow valve and turning off a compressor to stop the flow of cathode air.

摘要翻译： 一种用于在燃料电池系统中产生贫氧气体的方法，包括在燃料电池系统关闭时以期望的阴极化学计量运行燃料电池堆，以用贫氧气体置换阴极废气。 该方法还包括关闭阴极流量阀并关闭压缩机以阻止阴极空气的流动。

公开(公告)号：US20110123883A1

公开(公告)日：2011-05-26

申请号：US13020294

申请日：2011-02-03

申请人： David A. Arthur ,  Abdullah B. Alp

发明人： David A. Arthur ,  Abdullah B. Alp

IPC分类号： H01M8/04

CPC分类号： H01M8/04992 ,  H01M8/04089 ,  H01M8/04395 ,  H01M8/0491

摘要： A method for managing fuel cell power increases in a fuel cell system using an air flow feedback delay. The method comprises the steps of determining a required air mass flow rate at a predetermined point in the fuel cell system, determining an actual air mass flow at a predetermined point in the fuel cell system, calculating an air flow feedback delay as a function of the required air mass flow rate and the actual air mass flow, and delaying an external circuit from increasing current draw from the fuel cell stack by the magnitude of the air flow feedback delay.

摘要翻译： 使用空气流反馈延迟的燃料电池系统中用于管理燃料电池功率的方法增加。 该方法包括以下步骤：确定燃料电池系统中预定点处的所需空气质量流量，确定燃料电池系统中预定点处的实际空气质量流量，计算作为 所需的空气质量流量和实际空气质量流量，并且延迟外部电路不增加来自燃料电池堆的电流消耗乘以气流反馈延迟的大小。

公开(公告)号：US20110087389A1

公开(公告)日：2011-04-14

申请号：US12723261

申请日：2010-03-12

申请人： Darrell W. Burleigh ,  David A. Arthur ,  Abdullah B. Alp ,  Seth E. Lerner ,  Akbar Chowdhury ,  David R. Savage

发明人： Darrell W. Burleigh ,  David A. Arthur ,  Abdullah B. Alp ,  Seth E. Lerner ,  Akbar Chowdhury ,  David R. Savage

IPC分类号： G06F19/00

CPC分类号： H01M8/04298 ,  B60L58/31 ,  B60L58/33 ,  B60L58/34 ,  B60L2260/56 ,  H01M8/04358 ,  H01M2250/20 ,  Y02T10/92 ,  Y02T90/32 ,  Y02T90/34

摘要： A system and method for putting a fuel cell vehicle system into a stand-by mode where there is little or no power being consumed, the quantity of fuel being used is minimal and the fuel cell system is able to quickly recover from the mode. The method includes determining whether predetermined stand-by mode vehicle level entrance criteria have been satisfied at a vehicle control level and predetermined stand-by mode fuel cell level entrance criteria have been satisfied for a fuel cell system control level, and putting the vehicle in the stand-by mode if both the vehicle level entrance criteria and the fuel cell level entrance criteria have been satisfied. The method exits the stand-by mode if predetermined vehicle level exit criteria have been satisfied or predetermined fuel cell level exit criteria have been satisfied.

摘要翻译： 一种用于将燃料电池车辆系统置于消耗很少或没有电力的待机模式的系统和方法，所使用的燃料量最小并且燃料电池系统能够从该模式快速恢复。 该方法包括确定在车辆控制级别是否已经满足预定待机模式车辆级别入门标准，并且已经满足燃料电池系统控制级别的预定待机模式燃料电池电平入口标准，并将车辆放置在 如果车辆等级进入标准和燃料电池电平入口标准均已满足，则备用模式。 如果已经满足预定的车辆级别的出口标准或已经满足预定的燃料电池级别的出口标准，则该方法退出待机模式。

公开(公告)号：US07862941B2

公开(公告)日：2011-01-04

申请号：US11669890

申请日：2007-01-31

申请人： Prasad Gade ,  Jon R. Sienkowski ,  Abdullah B. Alp

发明人： Prasad Gade ,  Jon R. Sienkowski ,  Abdullah B. Alp

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/0662

摘要： A fuel cell system that controls an anode exhaust gas bleed during power up-transients. The fuel cell system includes a by-pass valve that allows compressor air to by-pass the fuel cell stack and be directly emitted into the cathode exhaust gas stream. The system detects a power up-transient by monitoring the rate of closing of the by-pass valve and the rate of change of an increase in the compressor airflow set-point. If these parameters pass a certain threshold, then the system determines that a power up-transient is occurring, and prevents an anode exhaust gas bleed for a predetermined period of time. If cathode pulsing is occurring where power up-transients come one after another, then the system will continuously reset the time period for preventing the anode exhaust gas bleed until a second time limit is reached, where the bleed is then forced.

摘要翻译： 燃料电池系统，其在上电瞬变期间控制阳极废气流出。 燃料电池系统包括旁通阀，其允许压缩机空气绕过燃料电池堆并且直接排放到阴极废气流中。 该系统通过监测旁通阀的关闭速率和压缩机气流设定点增加的变化率来检测上电瞬变。 如果这些参数通过了一定的阈值，则系统确定正在发生上电瞬变，并且防止阳极废气流出一段预定的时间。 如果阴极脉冲发生在上电瞬间相继出现的情况下，系统将连续重置时间段，以防止阳极废气流失，直到达到第二个时间限制，然后强制泄漏。

公开(公告)号：US07695844B2

公开(公告)日：2010-04-13

申请号：US11180865

申请日：2005-07-13

申请人： Abdullah B. Alp ,  Joe Machuca

发明人： Abdullah B. Alp ,  Joe Machuca

IPC分类号： H01M8/04

CPC分类号： H01M8/04761 ,  H01M8/04231 ,  H01M8/0444 ,  H01M8/04753 ,  H01M8/0662 ,  H01M8/24 ,  H01M2250/20 ,  Y02T90/32

摘要： A control strategy for removing nitrogen from the anode side of a fuel cell stack. The control strategy includes using a bleed valve to remove the nitrogen during the operation of the fuel cell stack until the stack ages to a point where the bleed valve is maintained open, but the concentration of nitrogen in the anode side of the stack continues to increase. Once the concentration of nitrogen in the anode side increases to a predetermined level, then a purge valve is opened in combination with the bleed valve to reduce the concentration of nitrogen. Once the nitrogen concentration is reduced below the level, then both valves are closed, and the sequence is repeated.

摘要翻译： 用于从燃料电池堆的阳极侧去除氮的控制策略。 控制策略包括在燃料电池堆的操作期间使用放气阀去除氮气，直到堆叠老化到放气阀保持打开的点，但是堆叠的阳极侧的氮浓度继续增加 。 一旦阳极侧的氮浓度增加到预定水平，则与放气阀组合打开净化阀以降低氮的浓度。 一旦氮浓度降低到水平以下，则关闭两个阀，并重复该顺序。

公开(公告)号：US07695839B2

公开(公告)日：2010-04-13

申请号：US11549766

申请日：2006-10-16

申请人： David A. Arthur ,  Abdullah B. Alp

发明人： David A. Arthur ,  Abdullah B. Alp

IPC分类号： H01M8/04 ,  H01M8/12 ,  H01M8/00

CPC分类号： H01M8/04104 ,  H01M8/04619 ,  H01M8/04776 ,  H01M16/006 ,  H01M2250/20 ,  Y02T90/32

摘要： A fuel cell system that employs a method for increasing stack power ramp up for high power up-transients by decoupling the build-up of stack current density from the cathode side pressure. The system gives the compressor power priority during the power up-transient to quickly provide the proper compressor speed, and therefore the proper air mass flow, for the desired current density of the fuel cell stack. The system also maintains the cathode side pressure of the stack low by keeping a cathode back-pressure valve open. By increasing the cathode input airflow rate to the proper level at the power up-transient, the current density of the stack will increase to the desired stack power level. Subsequently, the back-pressure valve is closed to increase the stack voltage to provide the total maximum power achievable by the stack.

摘要翻译： 一种燃料电池系统，其采用通过将堆叠电流密度与阴极侧压力的积聚解耦来增加堆叠功率的方法来提高高功率上变频。 该系统在上电瞬态期间给出压缩机功率优先权，以便快速提供适当的压缩机速度，并因此提供适当的空气质量流量，用于燃料电池堆的所需电流密度。 该系统还通过保持阴极背压阀打开来保持堆的阴极侧压力低。 通过在上电瞬变时将阴极输入气流量增加到适当水平，堆叠的电流密度将增加到所需的堆叠功率水平。 随后，背压阀关闭以增加堆叠电压，以提供堆叠可实现的总的最大功率。