公开(公告)号：US07442458B2

公开(公告)日：2008-10-28

申请号：US11105793

申请日：2005-04-13

申请人： Kenichiro Ueda ,  Shinji Yoshikawa ,  Junji Uehara

发明人： Kenichiro Ueda ,  Shinji Yoshikawa ,  Junji Uehara

IPC分类号： H01M8/04

CPC分类号： H01M8/04231 ,  H01M8/04104 ,  H01M8/0662

摘要： A fuel cell system is equipped with a fuel cell for generating power by an electrochemical reaction of a fuel gas and an oxidizer gas, a fuel gas supply mechanism for supplying the fuel gas to the fuel cell, a supply amount adjustment mechanism for adjusting a supply amount of the fuel gas, a fuel gas flow passage for passing the fuel gas, a purge valve for purging a gas within the fuel gas flow passage outside, and a control mechanism for opening the purge valve when a stop request of the fuel cell is output, wherein when an activation request of the fuel cell is output, the control mechanism controls the supply amount adjustment mechanism so that a pressure within the fuel gas flow passage becomes smaller than a minimum pressure in a normal power generation and larger than an atmospheric pressure.

摘要翻译： 燃料电池系统配备有用于通过燃料气体和氧化剂气体的电化学反应发电的燃料电池，用于向燃料电池供应燃料气体的燃料气体供给机构，用于调节供给量的供给量调节机构 燃料气体的量，用于使燃料气体通过的燃料气体流路，用于清除燃料气体流路外部的气体的吹扫阀，以及用于当燃料电池的停止请求时打开净化阀的控制机构 输出，其中当输出所述燃料电池的激活请求时，所述控制机构控制所述供给量调节机构，使得所述燃料气体流路内的压力变得小于正常发电中的最小压力并且大于大气压 。

公开(公告)号：US20070111050A1

公开(公告)日：2007-05-17

申请号：US11598428

申请日：2006-11-13

申请人： Yuji Matsumoto ,  Kenichiro Ueda ,  Junji Uehara

发明人： Yuji Matsumoto ,  Kenichiro Ueda ,  Junji Uehara

IPC分类号： H01M8/04

CPC分类号： H01M8/04395 ,  H01M8/04089 ,  H01M8/04097 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/04992

摘要： A fuel-cell system is provided, which includes a fuel cell, a reactive-gas supply unit and a control unit. The reactive-gas supply unit supplies the reactive gases to the fuel cell. The control unit includes an average stoichiometric flow-ratio calculation part and a reactive-gas reduction part. The average stoichiometric flow-ratio calculation part calculates an average stoichiometric flow ratio by averaging stoichiometric flow ratios. A stoichiometric flow ratio is a ratio of an amount of the reactive gases supplied to the fuel cell with respect to a required amount of the reactive gases of the fuel cell in accordance with a required amount of power generation. When the average stoichiometric flow ratio is equal to or greater than a first predetermined value, the reactive-gas reduction part reduces the amount of the reactive gases supplied to the fuel cell so as to lower the stoichiometric flow ratio.

摘要翻译： 提供了一种燃料电池系统，其包括燃料电池，反应气体供应单元和控制单元。 反应气体供应单元将反应气体供应到燃料电池。 控制单元包括平均化学计量流量比计算部和反应气体减少部。 平均化学计量流量比计算部分通过平均化学计量流量比计算平均化学计量流量比。 化学计量流量比是根据所需的发电量，供应到燃料电池的反应气体的量相对于所需量的燃料电池的反应气体的比例。 当平均化学计量流量比等于或大于第一预定值时，反应气体还原部分减少供应到燃料电池的反应气体的量以降低化学计量流量比。

公开(公告)号：US08415062B2

公开(公告)日：2013-04-09

申请号：US12636228

申请日：2009-12-11

申请人： Kenichiro Ueda ,  Junji Uehara ,  Yuji Matsumoto

发明人： Kenichiro Ueda ,  Junji Uehara ,  Yuji Matsumoto

IPC分类号： H01M8/04 ,  H01M8/24 ,  H01M8/10

CPC分类号： H01M8/04447 ,  H01M8/04231 ,  H01M8/0662

摘要： A fuel cell system includes a fuel cell, a cathode supply passage, a cathode discharging passage, an anode supply passage, an anode discharging passage, a pair of cathode shutoff units, an anode shutoff unit, an anode discharging unit, a discharged gas processing unit, and a control unit. The control unit releases the sealing of the cathode passage by the pair of cathode shutoff units, at the time of start-up of the fuel cell system, and releases the sealing of the anode passage by the anode discharging unit, thereby performing a purge process to allow discharge of the anode gas.

摘要翻译： 燃料电池系统包括燃料电池，阴极供应通道，阴极排出通道，阳极供应通道，阳极排出通道，一对阴极截止单元，阳极关闭单元，阳极排出单元，排出气体处理 单元和控制单元。 在燃料电池系统启动时，控制单元通过一对阴极截止单元释放阴极通道的密封，并通过阳极排出单元释放阳极通道的密封，从而进行清洗过程 以允许阳极气体的排出。

公开(公告)号：US08097372B2

公开(公告)日：2012-01-17

申请号：US12410326

申请日：2009-03-24

申请人： Kenichiro Ueda ,  Junji Uehara ,  Yuji Matsumoto

发明人： Kenichiro Ueda ,  Junji Uehara ,  Yuji Matsumoto

IPC分类号： H01M8/06

CPC分类号： H01M8/04097 ,  H01M8/04007 ,  H01M8/04231

摘要： A controller of a fuel cell system includes an anode gas replacement apparatus, a stoppage time detection apparatus, and a cathode gas flow rate control apparatus. The anode gas replacement apparatus replaces hydrogen in an anode gas channel using an anode gas supply apparatus. The stoppage time detection apparatus detects a stoppage time during which operation of the fuel cell stack is stopped. When the anode gas replacement apparatus replaces the hydrogen, the cathode gas flow rate control apparatus changes the flow rate of the cathode gas supplied from the cathode gas supply apparatus depending on the stoppage time.

摘要翻译： 燃料电池系统的控制器包括阳极气体置换装置，停止时间检测装置和阴极气体流量控制装置。 阳极气体置换装置使用阳极气体供给装置代替阳极气体流路中的氢。 停止时间检测装置检测停止燃料电池堆的动作的停止时间。 当阳极气体置换装置代替氢时，阴极气体流量控制装置根据停止时间改变从阴极气体供给装置供给的阴极气体的流量。

公开(公告)号：US08039155B2

公开(公告)日：2011-10-18

申请号：US11598428

申请日：2006-11-13

申请人： Yuji Matsumoto ,  Kenichiro Ueda ,  Junji Uehara

发明人： Yuji Matsumoto ,  Kenichiro Ueda ,  Junji Uehara

IPC分类号： H01M8/04

CPC分类号： H01M8/04395 ,  H01M8/04089 ,  H01M8/04097 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/04992

摘要： A fuel-cell system is provided, which includes a fuel cell, a reactive-gas supply unit and a control unit. The reactive-gas supply unit supplies the reactive gases to the fuel cell. The control unit includes an average stoichiometric flow-ratio calculation part and a reactive-gas reduction part. The average stoichiometric flow-ratio calculation part calculates an average stoichiometric flow ratio by averaging stoichiometric flow ratios. A stoichiometric flow ratio is a ratio of an amount of the reactive gases supplied to the fuel cell with respect to a required amount of the reactive gases of the fuel cell in accordance with a required amount of power generation. When the average stoichiometric flow ratio is equal to or greater than a first predetermined value, the reactive-gas reduction part reduces the amount of the reactive gases supplied to the fuel cell so as to lower the stoichiometric flow ratio.

摘要翻译： 提供了一种燃料电池系统，其包括燃料电池，反应气体供应单元和控制单元。 反应气体供应单元将反应气体供应到燃料电池。 控制单元包括平均化学计量流量比计算部和反应气体减少部。 平均化学计量流量比计算部分通过平均化学计量流量比计算平均化学计量流量比。 化学计量流量比是根据所需的发电量，供应到燃料电池的反应气体的量相对于所需量的燃料电池的反应气体的比例。 当平均化学计量流量比等于或大于第一预定值时，反应气体还原部分减少供应到燃料电池的反应气体的量以降低化学计量流量比。

公开(公告)号：US20080208490A1

公开(公告)日：2008-08-28

申请号：US12038263

申请日：2008-02-27

申请人： Yuji Matsumoto ,  Kenichiro Ueda ,  Junji Uehara

发明人： Yuji Matsumoto ,  Kenichiro Ueda ,  Junji Uehara

IPC分类号： G01R31/00

CPC分类号： G01R35/00 ,  G01R19/16542 ,  H01M8/04246 ,  H01M8/04358 ,  H01M8/04552 ,  H01M8/04559 ,  H01M8/04671 ,  H01M2008/1095

摘要： A failure determination device for a cell voltage monitor which detects cell voltages of a plurality of single cells comprising a fuel cell stack comprises: a memory for storing cell voltages detected by the cell voltage monitor; a minimum value determination unit for determining whether or not a present cell voltage which the cell voltage monitor detects is equal to or lower than a minimum value cell voltage which is in a detectable range of the cell voltage monitor; a failure determination unit for determining that the cell voltage monitor has a failure when the minimum value determination unit determines that the present cell voltage is equal to or lower than the minimum value cell voltage, and a cell voltage detected by the cell voltage monitor in the past and stored in the memory is greater than a determination cell voltage.

摘要翻译： 一种用于检测包括燃料电池堆的多个单电池的电池电压的电池电压监视器的故障确定装置，包括：用于存储由电池电压监视器检测的电池电压的存储器; 最小值确定单元，用于确定单元电压监视器检测到的当前单元电压是否等于或小于在单元电压监视器的可检测范围内的最小值单元电压; 当所述最小值确定单元确定所述当前单元电压等于或低于所述最小值单元电压时，确定所述单元电压监视器具有故障的故障确定单元，以及由所述单元电压监视器检测到的单元电压 过去并存储在存储器中大于确定单元电压。

公开(公告)号：US07361423B2

公开(公告)日：2008-04-22

申请号：US10989691

申请日：2004-11-15

申请人： Kuniaki Ojima ,  Shinji Yoshikawa ,  Yuji Matsumoto ,  Junji Uehara ,  Kenichiro Ueda

发明人： Kuniaki Ojima ,  Shinji Yoshikawa ,  Yuji Matsumoto ,  Junji Uehara ,  Kenichiro Ueda

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04097 ,  H01M8/04231 ,  H01M8/04552 ,  H01M8/04589 ,  H01M8/04761 ,  H01M8/04992

摘要： A fuel cell system includes: a fuel cell which generates electrical power from a chemical reaction of a reaction gas; a discharge path for discharging the reaction gas supplied to the fuel cell; a discharge valve which is provided in the discharge path and discharges the reaction gas from the discharge path; and valve control units for controlling opening of the discharge valve, wherein the valve control units are adapted such that, since the discharge valve has been opened by a valve open command issued by one of the valve control units, the valve control units prohibit the discharge valve from being opened by a valve open command issued by any of the other valve control units until a predetermined time period elapses.

摘要翻译： 燃料电池系统包括：从反应气体的化学反应产生电力的燃料电池; 用于排出供应到燃料电池的反应气体的排出路径; 排出阀，其设置在排出路径中并从排出路径排出反应气体; 以及阀控制单元，用于控制排出阀的打开，其中阀控制单元适于使得由于排气阀已经由阀控制单元之一发出的阀打开指令打开，阀控制单元禁止排放 阀通过由任何其它阀控制单元发出的阀打开指令打开，直到经过预定时间段。

公开(公告)号：US20070026280A1

公开(公告)日：2007-02-01

申请号：US11492339

申请日：2006-07-25

申请人： Junji Uehara ,  Kenichiro Ueda ,  Daishi Igarashi

发明人： Junji Uehara ,  Kenichiro Ueda ,  Daishi Igarashi

IPC分类号： H01M8/04 ,  H01M8/12

CPC分类号： H01M8/04089 ,  H01M8/04313 ,  H01M8/04395 ,  H01M8/0441 ,  H01M8/04597 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/04783 ,  H01M8/0491

摘要： A controllable range of an air flow rate and an air pressure in a fuel cell system is calculated from air flow rates and air pressures when the air back pressure valve is fully open and fully closed. A target generation current is calculated from an accelerator position or an auxiliary unit to calculate a target air flow rate and a target air pressure as target values. If the target values are outside the controllable range, it is judged whether the target values exceed an upper limit the controllable range, the target values are decreased onto the upper limit, and if no, the target values are increased onto the lower limit of the controllable range.

摘要翻译： 当空气背压阀完全打开和完全关闭时，从空气流量和空气压力计算燃料电池系统中的空气流速和空气压力的可控范围。 从加速器位置或辅助单元计算目标发电电流，以计算目标空气流量和目标空气压力作为目标值。 如果目标值在可控范围之外，则判断目标值是否超过可控范围的上限，目标值下降到上限，否则，目标值增加到 可控范围。

公开(公告)号：US06898964B2

公开(公告)日：2005-05-31

申请号：US10723708

申请日：2003-11-25

申请人： Kenichiro Ueda ,  Junji Uehara ,  Shinji Yoshikawa ,  Yoshikazu Murakami

发明人： Kenichiro Ueda ,  Junji Uehara ,  Shinji Yoshikawa ,  Yoshikazu Murakami

IPC分类号： H01M8/04 ,  G01M17/00 ,  G01M99/00

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。

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.