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1. 发明申请

US20040185316A1 Fuel cell system method, apparatus and scheduling 审中-公开
标题翻译：燃料电池系统方法，装置和调度
公开(公告)号：US20040185316A1
公开(公告)日：2004-09-23
申请号：US10817052
申请日：2004-04-02
申请人： Ballard Power Systems Inc.
发明人： Brian Wells , Robert Kenneth Parr
IPC分类号： H01M008/04
CPC分类号： H01M8/04007 , H01M8/04089
摘要： A controller in a fuel cell system performs various operating parameter checks at a predefined schedule, including one or more of a stack current check; a stack voltage check; a cell voltage check; a purge cell check; an oxygen concentration check; a hydrogen concentration check; a stack temperature check; an ambient air temperature check; a fuel pressure check; and an airflow rate check; a hydrogen sensor heater check; a battery voltage check; a microcontroller self-check; and/or toggling a watchdog. The frequency of the checks are set relative to achieve an efficient control of the fuel cell system by selectively distributing the load on the microcontroller.
摘要翻译：燃料电池系统中的控制器以预定的时间表执行各种操作参数检查，包括堆栈电流检查中的一个或多个; 堆叠电压检查; 电池电压检查; 净化池检查; 氧浓度检查; 氢浓度检查; 堆栈温度检查; 环境空气温度检查; 燃油压力检查; 和气流速率检查; 氢传感器加热器检查; 电池电压检查; 微控制器自检; 和/或切换看门狗。相对于通过选择性地将负载分配到微控制器来实现对燃料电池系统的有效控制来设置检查的频率。

2. 发明申请

US20030022042A1 Fuel cell resuscitation method and apparatus 有权
标题翻译：燃料电池复苏方法及装置
公开(公告)号：US20030022042A1
公开(公告)日：2003-01-30
申请号：US09916213
申请日：2001-07-25
申请人： Ballard Power Systems Inc.
发明人： Brian Wells , Tan Duc Uong , Charles Joseph Schembri , Gregory A. James , George Alexander Skinner , Benno Giesecke
IPC分类号： H01M008/04
CPC分类号： H01M8/04231
摘要： A fuel cell system includes fuel cells forming a fuel cell stack, having a fuel passage and an oxidant passage. A purge valve is coupled to the fuel passage to exhaust contaminants, and a controller is coupled to temporarily increase the oxidant stream flow rate through the oxidant passage, and to temporarily open the fuel purge valve, if a voltage across a pair of fuel cells is less than a defined threshold voltage. In this resuscitation step, the oxidant flow rate can be temporarily increased by increasing a duty cycle of an air compressor by approximately 50% for a duration of between approximately 5 to 10 seconds. The controller can further shut down fuel cell operation if a voltage across a pair of fuel cells is less than a defined threshold voltage in an inter-resuscitation period immediately following the resuscitation step.
摘要翻译：燃料电池系统包括形成具有燃料通道和氧化剂通道的燃料电池堆的燃料电池。净化阀联接到燃料通道以排出污染物，并且控制器被耦合以临时增加通过氧化剂通道的氧化剂流流速，并且如果一对燃料电池两端的电压为小于定义的阈值电压。在该复苏步骤中，通过将空气压缩机的占空比增加大约50％，持续约5至10秒之间，可以临时增加氧化剂流速。如果一对燃料电池上的电压在复苏步骤之后的复苏期间小于定义的阈值电压，则控制器可以进一步关闭燃料电池操作。

3. 发明申请

US20030022045A1 Fuel cell system having a hydrogen sensor 失效
标题翻译：具有氢传感器的燃料电池系统
公开(公告)号：US20030022045A1
公开(公告)日：2003-01-30
申请号：US09916212
申请日：2001-07-25
申请人： Ballard Power Systems Inc.
发明人： Brian Wells , Kenneth W. Strang
IPC分类号： H01M008/04 , H01M008/10
CPC分类号： H01M8/04089 , H01M8/04007 , H01M8/04119 , H01M8/04231
摘要： An electric power generating system is provided that comprises a fuel cell stack having at least one solid polymer fuel cell, a cooling system having a coolant flow path that directs coolant to and from the stack, a fuel regulating system having a fuel flow path and for regulating the supply of fuel from a fuel supply to the stack via the fuel flow path, and a hydrogen concentration sensor. The sensor is located in the vicinity of the fuel regulating system and in the coolant flow path at a location downstream of the stack to detect hydrogen that may have been discharged by components of the power generating system in the coolant flow path upstream of the sensor, or by the fuel regulating system. In the event the measured hydrogen concentration exceeds a threshold level, steps are taken to reduce or stop the discharge of hydrogen from the power generating system.
摘要翻译：提供了一种发电系统，其包括具有至少一个固体聚合物燃料电池的燃料电池堆，具有将冷却剂引导到堆叠的冷却剂流动路径的冷却系统，具有燃料流动路径的燃料调节系统，通过燃料流路调节燃料从燃料供应到堆叠的供应，以及氢浓度传感器。传感器位于燃料调节系统附近并且位于堆叠下游位置处的冷却剂流动路径中，以检测在传感器上游的冷却剂流动路径中可能由发电系统的部件排出的氢，或燃油调节系统。在测量的氢浓度超过阈值水平的情况下，采取步骤来减少或停止来自发电系统的氢的排放。

4. 发明申请

US20030022040A1 Fuel cell anomaly detection method and apparatus 失效
标题翻译：燃料电池异常检测方法及装置
公开(公告)号：US20030022040A1
公开(公告)日：2003-01-30
申请号：US09916115
申请日：2001-07-25
申请人： Ballard Power Systems Inc.
发明人： Brian Wells
IPC分类号： H01M008/04 , H01M008/10
CPC分类号： H01M8/04552 , H01M8/04231 , H01M8/0432 , H01M8/04365 , H01M8/04395 , H01M8/0444 , H01M8/04559 , H01M8/04589 , H01M8/04671 , H01M8/04798 , H01M8/04955 , H01M16/006 , H01M2008/1095
摘要： A respective bipolar junction transistor is coupled across pairs of fuel cells in a fuel cell stack to monitor the voltage across each fuel cell pairs for a drop in voltage below a threshold voltage. A respective optoisolator coupled to each of the transistors produces a digital signal corresponding to the status of the respective pair of fuel cells. An nullANDnull circuit produces a single digital signal corresponding to the status of one or more pairs of fuel cells.
摘要翻译：相应的双极结晶体管耦合在燃料电池堆中的两对燃料电池上，以监测每个燃料电池对上的电压，以降低阈值电压以下的电压。耦合到每个晶体管的相应的光隔离器产生对应于相应的一对燃料电池的状态的数字信号。 “AND”电路产生对应于一对或多对燃料电池状态的单个数字信号。

5. 发明申请

US20030022037A1 Fuel cell system method, apparatus and scheduling 失效
标题翻译：燃料电池系统方法，装置和调度
公开(公告)号：US20030022037A1
公开(公告)日：2003-01-30
申请号：US09916240
申请日：2001-07-25
申请人： Ballard Power Systems Inc.
发明人： Robert Kenneth Parr , Brian Wells
IPC分类号： H01M008/04
CPC分类号： H01M8/04228 , H01M8/0267 , H01M8/04007 , H01M8/04223 , H01M8/04231 , H01M8/04303 , H01M8/241 , H01M8/2457 , H01M8/2483
摘要： A controller in a fuel cell system performs various operating parameter checks at a predefined schedule, including one or more of a stack current check; a stack voltage check; a cell voltage check; a purge cell check; an oxygen concentration check; a hydrogen concentration check; a stack temperature check; an ambient air temperature check; a fuel pressure check; and an airflow rate check; a hydrogen sensor heater check; a battery voltage check; a microcontroller self-check; and/or toggling a watchdog. The frequency of the checks are set relative to achieve an efficient control of the fuel cell system by selectively distributing the load on the microcontroller.
摘要翻译：燃料电池系统中的控制器以预定的时间表执行各种操作参数检查，包括堆栈电流检查中的一个或多个; 堆叠电压检查; 电池电压检查; 净化池检查; 氧浓度检查; 氢浓度检查; 堆栈温度检查; 环境空气温度检查; 燃油压力检查; 和气流速率检查; 氢传感器加热器检查; 电池电压检查; 微控制器自检; 和/或切换看门狗。相对于通过选择性地将负载分配到微控制器来实现对燃料电池系统的有效控制来设置检查的频率。

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