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公开(公告)号：US07223489B2
公开(公告)日：2007-05-29
申请号：US10621848
申请日：2003-07-16
CPC分类号： H01M8/04231
摘要： A hydrogen purge control apparatus includes a fuel cell stack from which hydrogen is purged as necessary, a purged hydrogen dilution device which is disposed downstream of the fuel cell stack, and which has a chamber formed therein, a first inlet for purged hydrogen, a second inlet for air, and an outlet for diluted hydrogen, a regulator which is disposed between the fuel cell stack and the first inlet, and which is provided for regulating an amount of the purged hydrogen flowing into the purged hydrogen dilution device, and a control unit having a hydrogen concentration estimating section that is configured to estimate the hydrogen concentration at the outlet of the purged hydrogen dilution device based on an operating state of the fuel cell stack. The regulator is operated by the control unit depending on the hydrogen concentration estimated by the hydrogen concentration estimating section.
摘要翻译： 氢气清除控制装置包括：必要时清除氢气的燃料电池堆;设置在燃料电池堆下游的吹扫的氢稀释装置，其中形成有室，用于净化氢的第一入口，第二 用于空气的入口和用于稀释氢的出口，调节器，其设置在燃料电池堆和第一入口之间，并且被设置用于调节流入净化的氢稀释装置中的净化氢的量;以及控制单元 具有氢浓度推定部，其被配置为基于所述燃料电池堆的运行状态来估计所述净化氢稀释装置的出口处的氢浓度。 调节器由控制单元根据由氢浓度估计部估计的氢浓度来操作。
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公开(公告)号：US06864003B2
公开(公告)日：2005-03-08
申请号：US10190418
申请日：2002-07-03
CPC分类号： H01M8/04231
摘要： A control device for a fuel cell including a transient state determination unit which determines whether changes in generated output of the fuel cell are within a predetermined range; a hydrogen purge detection unit which detects the presence/absence of a purge command to a hydrogen purge valve; a failure determination unit which determines, if the transient state determination unit determined that it is not a transient state, failure in the hydrogen purge valve based on an actual hydrogen pressure value at an inlet portion of the fuel cell and a target hydrogen pressure value, which is set in accordance with the presence/absence of the purge command detected by the hydrogen purge detection unit; and an alarm unit which generates an alarm when failure in the hydrogen purge valve is determined by the failure determination unit.
摘要翻译： 一种用于燃料电池的控制装置，包括：瞬态状态确定单元，其确定所述燃料电池的所述输出的变化是否在预定范围内; 氢气清除检测单元，其检测是否存在对氢气净化阀的清除命令; 故障确定单元，其基于所述燃料电池的入口部分处的实际氢气压力和目标氢气压力来确定所述过渡状态确定单元是否确定其不是过渡状态，所述氢气净化阀中的故障， 其根据由氢气清除检测单元检测到的清除指令的存在/不存在而设定; 以及在故障确定单元确定氢气净化阀故障时产生报警的报警单元。
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公开(公告)号：US06815104B2
公开(公告)日：2004-11-09
申请号：US10722690
申请日：2003-11-24
申请人： Junji Uehara , Kenichiro Ueda , Yoshikazu Murakami , Masanori Hayashi , Yuji Matsumoto , Daishi Igarashi
发明人： Junji Uehara , Kenichiro Ueda , Yoshikazu Murakami , Masanori Hayashi , Yuji Matsumoto , Daishi Igarashi
IPC分类号： H01M804
CPC分类号： H01M8/04089
摘要： A method for controlling the flow rate of an oxidizer in a fuel cell system having a fuel cell stack being supplied with fuel and the oxidizer, a compressor for supplying the oxidizer to the fuel cell stack, a back pressure valve for controlling pressure of the oxidizer, and a control device for controlling the fuel cell stack, the compressor, and the back pressure valve. The method includes the steps of calculating an oxidizer pressure command and an oxidizer flow rate command based on a given electrical current command, comparing a first flow rate that is defined as an upper limit of oxidizer flow rate and a second flow rate that is defined as a lower limit of oxidizer flow rate with the oxidizer flow rate command, and regulating the oxidizer flow rate command so as to be limited within a range from the second flow rate to the first flow rate.
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公开(公告)号：US07264900B2
公开(公告)日：2007-09-04
申请号：US10721615
申请日：2003-11-24
IPC分类号： H01M8/00
CPC分类号： H01M8/0662 , H01M8/04388 , H01M8/04395 , H01M8/04462 , H01M8/04559 , H01M8/04761 , H01M8/04805
摘要： A fuel cell system comprises a fuel cell, a hydrogen discharge valve for discharging hydrogen from the fuel cell under a predetermined condition, a hydrogen concentration reduction device for reducing the concentration of hydrogen discharged from the hydrogen discharge valve, a hydrogen sensor for detecting an instantaneous hydrogen concentration of a gas processed by the hydrogen concentration reduction device and an average hydrogen concentration calculating unit for calculating an average hydrogen concentration per hour of a gas processed by the hydrogen concentration reduction device, wherein a hydrogen discharge from the fuel cell by the hydrogen discharge valve is prohibited in the event that an instantaneous hydrogen concentration detected by the hydrogen sensor exceeds a first threshold, or in the event that an average hydrogen concentration calculated by the average hydrogen concentration calculating unit exceeds a second threshold which is lower than the first threshold.
摘要翻译： 燃料电池系统包括燃料电池，用于在预定条件下从燃料电池排出氢的氢排放阀，用于降低从氢气排放阀排出的氢气浓度的氢浓度降低装置，用于检测瞬时 由氢浓度降低装置处理的气体的氢浓度和用于计算由氢浓度降低装置处理的气体的每小时的平均氢浓度的平均氢浓度计算单元，其中，通过氢气放电从燃料电池排出氢 在由氢传感器检测到的瞬时氢浓度超过第一阈值的情况下，或者平均氢浓度计算单元计算的平均氢浓度超过低于第一阈值的第二阈值的情况下，禁止阀。
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5.发明授权公开(公告)号：US06916563B2
公开(公告)日：2005-07-12
申请号：US10278260
申请日：2002-10-23
申请人： Akio Yamamoto , Satoshi Aoyagi , Masami Ogura , Yoshikazu Murakami , Kazunori Fukuma , Takatsugu Koyama
发明人： Akio Yamamoto , Satoshi Aoyagi , Masami Ogura , Yoshikazu Murakami , Kazunori Fukuma , Takatsugu Koyama
CPC分类号： H01M8/0662
摘要： A discharged fuel diluter includes: a retention region with a predetermined volume, into which a fuel discharged from a fuel cell is retained at the time of purging; a dilution region with a predetermined volume, through which air discharged from the fuel cell flows and at which the air is mixed with the fuel from the retention region to dilute the fuel; and a communicating portion, through which the fuel flows from the retention region to the dilution region.
摘要翻译： 排出的燃料稀释器包括：在清洗时保持从燃料电池排出的燃料的具有预定体积的保持区域; 具有预定体积的稀释区域，通过该稀释区域从燃料电池排出的空气流动并且空气与来自保留区域的燃料混合以稀释燃料; 以及连通部，燃料从保持区域流过稀释区域。
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6.发明授权公开(公告)号：US07531258B2
公开(公告)日：2009-05-12
申请号：US10986552
申请日：2004-11-10
CPC分类号： H01M8/04395 , H01M8/04097 , H01M8/04231 , H01M8/04402 , H01M8/0441 , H01M8/04753 , H01M8/04761
摘要： A fuel cell system includes: a fuel cell in which electrical power generation is performed through chemical reactions of reaction gases being supplied thereto; a discharge path through which the reaction gases are discharged; a discharge valve provided on the discharge path and operated for discharging the reaction gases through the discharge path; an opening condition monitoring device for continuously monitoring a demanded opening condition of the discharge valve; and an opening condition renewing device for renewing the demanded opening condition of the discharge valve depending on the demanded opening condition of the discharge valve detected by the opening condition monitoring device when opening of the discharge valve is demanded. Opening of the discharge valve is controlled depending on the latest demanded opening condition which has been renewed by the opening condition renewing device.
摘要翻译： 燃料电池系统包括：燃料电池，其中通过向其供应的反应气体的化学反应进行发电; 排出路径，反应气体通过该排出路径排出; 排出阀，设置在排出路径上并用于通过排出路径排出反应气体; 打开状态监视装置，用于连续地监视排出阀的要求打开状态; 以及打开条件更新装置，其要求在打开排出阀时根据由打开状态监视装置检测的排出阀的要求打开状态来更新排出阀的要求打开状态。 根据由打开状态更新装置更新的最新要求打开状态来控制排出阀的打开。
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公开(公告)号：US20060093880A1
公开(公告)日：2006-05-04
申请号：US11264933
申请日：2005-11-02
申请人： Daishi Igarashi , Yoshikazu Murakami , Junji Uehara , Kenichiro Ueda , Dai Saitoh , Chihiro Wake
发明人： Daishi Igarashi , Yoshikazu Murakami , Junji Uehara , Kenichiro Ueda , Dai Saitoh , Chihiro Wake
IPC分类号： H01M8/04
CPC分类号： H01M8/04343 , H01M8/04328 , H01M8/0435 , H01M8/04358 , H01M8/04365 , H01M8/04552 , H01M8/04873 , H01M8/04955 , H01M8/04992
摘要： A fuel cell system and an idle stop controlling method for the fuel cell system. The fuel cell system includes: a fuel gas supply means for supplying fuel gas; an oxidant gas supply means for supplying oxidant gas; a fuel cell to which the fuel gas and the oxidant gas are supplied for generation of electricity; an idle stop means for stopping generation of electricity by the fuel cell to perform idle stop; and an unstable state detection means for detecting whether the generation of electricity by the fuel cell is unstable. If the unstable state detection means detects that generation of electricity by the fuel cell is unstable, idle stop by the idle stop means is prohibited so that the fuel cell continues to generate electricity.
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公开(公告)号：US20050196655A1
公开(公告)日：2005-09-08
申请号：US11076364
申请日：2005-03-07
CPC分类号： H01M8/04231 , H01M8/04544
摘要： A fuel cell system has a fuel cell, a fuel supply device, a gas discharge valve, a voltage detecting device and a control device. The fuel supply device supplies a fuel gas to the fuel cell. The gas discharge valve discharges the fuel gas into an external environment. The voltage detecting device detects an output voltage of the fuel cell. The control device controls a discharging process when a request for starting the fuel cell is given. The discharging process includes introducing the fuel gas from the fuel supply device into a predetermined passage, opening the gas discharge valve and discharging residuals staying in the passage into the external environment. When the control device receives the request and determines that the output voltage has reached a first threshold before the discharging process has not been completed, the control device starts power generation irrespective of completion of the discharging process.
摘要翻译： 燃料电池系统具有燃料电池，燃料供给装置，排气阀，电压检测装置和控制装置。 燃料供给装置向燃料电池供给燃料气体。 排气阀将燃料气体排放到外部环境中。 电压检测装置检测燃料电池的输出电压。 当给出启动燃料电池的请求时，控制装置控制放电过程。 排放过程包括将来自燃料供应装置的燃料气体引入预定的通道中，打开气体排出阀并排出留在通道中的残留物进入外部环境。 当控制装置接收到请求并且在放电处理尚未完成之前确定输出电压已经达到第一阈值时，控制装置开始发电而不管放电过程是否完成。
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公开(公告)号：US20050142396A1
公开(公告)日：2005-06-30
申请号：US11019503
申请日：2004-12-21
CPC分类号： H01M8/04552 , H01M8/04589 , H01M8/0491
摘要： A current limiting system for fuel cells, which limits electric current generated by a fuel cell stack including a plurality of single cells generating electricity by a chemical reaction between fuel gas and oxidant. The current limiting system includes: a cell voltage detector which detects a cell voltage of each single cell; a current detector which detects a generated current taken out from the fuel cell stack; an input device through which are inputted the cell voltage and the generated current value; a target current limit value setting device which sets a target current limit value for limiting the generated current taken out from the fuel cell stack in accordance with the cell voltage; a current limit value setting device which sets a current limit value by replacing a present current limit value with the target current limit value when a difference between the present current limit value and the generated current value becomes smaller than a first predetermined value; and an output device which outputs the current limit value either to a current limiter for limiting the generated current in accordance with the current limit value or to an electric power consumption controller for controlling electric power consumption of loads that consume the generated current.
摘要翻译： 一种用于燃料电池的电流限制系统，其限制由包括燃料气体和氧化剂之间的化学反应而发电的多个单电池的燃料电池堆产生的电流。 电流限制系统包括：电池电压检测器，其检测每个单电池的电池电压; 电流检测器，其检测从所述燃料电池堆取出的产生的电流; 输入设备，通过该输入设备输入单元电压和所生成的电流值; 目标电流限制值设定装置，其根据电池电压设定用于限制从燃料电池堆取出的发电电流的目标电流极限值; 电流限制值设定装置，其在当前电流限制值与所生成的电流值之间的差变得小于第一预定值时，通过将目前电流限制值替换为目标电流限制值来设定电流限制值; 以及输出装置，其将电流限制值输出到用于限制根据电流限制值的发电电流的限流器，或者输出到用于控制消耗所产生的电流的负载的电力消耗的电力消耗控制器。
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10.发明授权Failure determination method for an air supply system in a fuel cell apparatus 失效燃料电池装置中的供气系统的故障判定方法公开(公告)号：US06898964B2
公开(公告)日：2005-05-31
申请号：US10723708
申请日：2003-11-25
CPC分类号： H01M8/04395 , H01M8/04089 , H01M2250/20 , Y02T90/32
摘要： An oxidizing agent supply system failure determination method for a fuel cell for use with a fuel cell apparatus provided with a fuel cell that is supplied with a fuel and an oxidizing agent, and an oxidizing agent supply system that has an oxidizing agent condition adjusting means that adjusts condition of the oxidizing agent supplied to the fuel cell, comprising the step of determining that the oxidizing agent supply system has failed if an absolute value of a difference between an actual value of a supply provided by the oxidizing agent condition adjusting means and a first predetermined value that is compared to the actual value is equal to or greater than a second predetermined value and a predetermined period of time has passed. An oxidizing agent supply system failure determination method for a fuel cell is provided which can maintain the reliability of the fuel cell apparatus.
摘要翻译： 一种与燃料电池装置一起使用的燃料电池的氧化剂供给系统故障判定方法，所述燃料电池装置设置有供给燃料和氧化剂的燃料电池，以及具有氧化剂状态调节装置的氧化剂供给系统， 调整供给到燃料电池的氧化剂的状态，包括如果氧化剂状态调节装置提供的供给的实际值与第一个氧化剂条件调节装置的实际值之间的差绝对值，则确定氧化剂供给系统失败的步骤 与实际值进行比较的预定值等于或大于第二预定值，并且经过预定时间段。 提供了能够维持燃料电池装置的可靠性的燃料电池的氧化剂供给系统故障判定方法。
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