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1. 发明申请

US20050142396A1 Current limiting system and current limiting method for fuel cells 有权
标题翻译：燃料电池限流系统和限流方法
公开(公告)号：US20050142396A1
公开(公告)日：2005-06-30
申请号：US11019503
申请日：2004-12-21
申请人： Daishi Igarashi , Kenichiro Kimura , Yoshikazu Murakami , Chirhiro Wake , Kenichiro Ueda
发明人： Daishi Igarashi , Kenichiro Kimura , Yoshikazu Murakami , Chirhiro Wake , Kenichiro Ueda
IPC分类号： H01M8/10 , H01M8/00 , H01M8/04
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。

2. 发明授权

US07473479B2 Current limiting system and current limiting method for fuel cells 有权
标题翻译：燃料电池限流系统和限流方法
公开(公告)号：US07473479B2
公开(公告)日：2009-01-06
申请号：US11019503
申请日：2004-12-21
申请人： Daishi Igarashi , Kenichiro Kimura , Yoshikazu Murakami , Chihiro Wake , Kenichiro Ueda
发明人： Daishi Igarashi , Kenichiro Kimura , Yoshikazu Murakami , Chihiro Wake , Kenichiro Ueda
IPC分类号： H01M8/04 , H01M8/00
CPC分类号： H01M8/04552 , H01M8/04589 , H01M8/0491
摘要： A current limiting system for fuel cells includes 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, and 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. The system also includes 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：燃料电池的限流系统包括：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;以及电流限制值设定装置，当当前电流限制值和所产生的电流值之间的差变得小于第一预定值时，通过用目标电流限制值代替当前电流限制值来限制电流限制值。该系统还包括输出装置，该输出装置根据电流限制值将电流限制值输出到用于限制发电电流的限流器，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。

3. 发明申请

US20060093880A1 Fuel cell system and method of controlling idle stop of the fuel cell system 有权
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.

4. 发明授权

US06815104B2 Method for controlling flow rate of oxidizer in fuel cell system 有权
标题翻译：控制燃料电池系统氧化剂流量的方法
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.

5. 发明授权

US07618728B2 Fuel cell system and method of controlling idle stop of the fuel cell system 有权
标题翻译：燃料电池系统和控制燃料电池系统怠速停止的方法
公开(公告)号：US07618728B2
公开(公告)日：2009-11-17
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.
摘要翻译：一种用于燃料电池系统的燃料电池系统和怠速停止控制方法。燃料电池系统包括：用于供应燃料气体的燃料气体供应装置; 用于供给氧化剂气体的氧化剂气体供给装置; 提供燃料气体和氧化剂气体用于发电的燃料电池; 怠速停止装置，用于停止燃料电池的发电以进行怠速停止; 以及用于检测燃料电池的电力产生是否不稳定的不稳定状态检测装置。如果不稳定状态检测装置检测到燃料电池的发电不稳定，则怠速停止装置的怠速停止被禁止，使得燃料电池继续发电。

6. 发明授权

US07531258B2 Fuel cell system and method for discharging reaction gas from fuel cell 有权
标题翻译：燃料电池系统和从燃料电池排出反应气体的方法
公开(公告)号：US07531258B2
公开(公告)日：2009-05-12
申请号：US10986552
申请日：2004-11-10
申请人： Kenichiro Ueda , Yuji Matsumoto , Kuniaki Ojima , Yoshikazu Murakami , Shinji Yoshikawa
发明人： Kenichiro Ueda , Yuji Matsumoto , Kuniaki Ojima , Yoshikazu Murakami , Shinji Yoshikawa
IPC分类号： H01M8/04 , H01M8/00
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。

7. 发明申请

US20050196655A1 Fuel cell system and method of controlling same 有权
标题翻译：燃料电池系统及其控制方法
公开(公告)号：US20050196655A1
公开(公告)日：2005-09-08
申请号：US11076364
申请日：2005-03-07
申请人： Kenichiro Ueda , Yosuke Fujii , Yoshikazu Murakami , Yuji Matsumoto
发明人： Kenichiro Ueda , Yosuke Fujii , Yoshikazu Murakami , Yuji Matsumoto
IPC分类号： H01M8/10 , H01M8/04
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。

8. 发明授权

US06898964B2 Failure determination method for an air supply system in a fuel cell apparatus 失效
标题翻译：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
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。

9. 发明授权

US07264900B2 Fuel cell system 有权
标题翻译：燃料电池系统
公开(公告)号：US07264900B2
公开(公告)日：2007-09-04
申请号：US10721615
申请日：2003-11-24
申请人： Kenichiro Ueda , Masanori Hayashi , Hideo Numata , Yoshikazu Murakami
发明人： Kenichiro Ueda , Masanori Hayashi , Hideo Numata , Yoshikazu Murakami
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。

10. 发明申请

US20050118475A1 Reaction gas supply apparatus and method for fuel cell 失效
标题翻译：燃料电池反应气体供应装置及方法
公开(公告)号：US20050118475A1
公开(公告)日：2005-06-02
申请号：US10993715
申请日：2004-11-19
申请人： Kenichiro Ueda , Kuniaki Ojima , Shinji Yoshikawa , Nobutaka Nakajima , Yoshikazu Murakami , Yasunori Kotani , Tatsuya Sugawara
发明人： Kenichiro Ueda , Kuniaki Ojima , Shinji Yoshikawa , Nobutaka Nakajima , Yoshikazu Murakami , Yasunori Kotani , Tatsuya Sugawara
IPC分类号： H01M8/04
CPC分类号： H01M8/04992 , H01M8/04089 , H01M8/04097 , H01M8/04104 , H01M8/0438 , H01M8/04388 , H01M8/04395 , H01M8/04432 , H01M8/04567 , H01M8/04753 , H01M8/04783
摘要： A reaction gas supply apparatus for a fuel cell is able to adapt to various kinds of operating states, and can provide improved responsiveness with respect to a required output. The apparatus has: a compressor 2 that supplies pressurized air to a cathode electrode of a fuel cell 1; a hydrogen supply device 30 that supplies hydrogen to an anode electrode of the fuel cell 1; a control device 10 that regulates the pressure of the cathode electrode by controlling the compressor 2 according to an operating state of the fuel cell 1; and a regulator 5 that is applied with the air pressure of the cathode electrode as a reference pressure, and regulates the supply pressure to the anode electrode based on this air pressure. Moreover there is provided a pressure regulator 39 that is capable of regulating the reference pressure that is applied to the regulator 5, by discharging air from an air flow passage for the air pressure that is applied to the regulator 5.
摘要翻译：用于燃料电池的反应气体供应装置能够适应各种操作状态，并且可以提供相对于所需输出的改进的响应性。该装置具有：向燃料电池1的阴极供给加压空气的压缩机2; 向燃料电池1的阳极供给氢的氢供给装置30; 控制装置10，其通过根据燃料电池1的运转状态控制压缩机2来调节阴极的压力; 以及施加阴极电极的空气压力作为参考压力的调节器5，并且基于该空气压力调节对阳极电极的供应压力。此外，提供了一种压力调节器39，其能够通过从施加到调节器5的空气压力的空气流动通道排出空气来调节施加到调节器5的基准压力。

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