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    • 4. 发明授权
    • Fuel cell system
    • 燃料电池系统
    • US08691458B2
    • 2014-04-08
    • US13106629
    • 2011-05-12
    • Masahiro OkuyoshiMasaaki MatsusueMasashi Toida
    • Masahiro OkuyoshiMasaaki MatsusueMasashi Toida
    • H01M8/06H01M8/04
    • H01M8/045H01M8/04507H01M8/04529H01M8/04873H01M2008/1095H01M2250/20Y02T90/32
    • It is an object of the invention to improve the accuracy of estimating a moisture content and suppress an effect of remaining water at the startup of the fuel cell system.A fuel cell system includes: a fuel cell including a cell laminate; an estimating unit for estimating a residual water content distribution in the reactant gas flow channel and a moisture content distribution in the electrolyte membrane in a cell plane of each single cell while taking into consideration water transfer that occurs between the anode electrode and the cathode electrode via the electrolyte membrane; and an operation control unit for, based on an estimation result from the estimating unit, setting a scavenging time used in a scavenging process for the fuel cell after the fuel cell system is shut down.
    • 本发明的目的是提高估计水分含量的准确度并抑制燃料电池系统启动时剩余水的影响。 燃料电池系统包括:燃料电池,其包括电池层压体; 估计单元,用于在考虑到在阳极电极和阴极电极之间发生的水转移时,估计每个单电池的电池面中的反应气体流路中的残留含水量分布和电解质膜中的水分含量分布 电解质膜; 以及操作控制单元,其基于来自所述估计单元的估计结果,设定在所述燃料电池系统关闭之后的所述燃料电池的清扫处理中使用的清扫时间。
    • 5. 发明授权
    • Fuel cell system
    • 用于估计停止期间残余水分含量的燃料电池系统的估计单元
    • US08252474B2
    • 2012-08-28
    • US13163083
    • 2011-06-17
    • Masahiro OkuyoshiMasaaki MatsusueMasashi Toida
    • Masahiro OkuyoshiMasaaki MatsusueMasashi Toida
    • H01M8/06H01M8/04
    • H01M8/0432H01M8/04179H01M8/04328H01M8/04343H01M8/04388H01M8/04417H01M8/04835H01M2008/1095H01M2250/20Y02T90/32
    • An object of the invention is to provide a fuel cell system capable of improving accuracy of water content estimation during a standstill.A fuel cell system includes a fuel cell having a plurality of single cells laminated together and an estimating unit for estimating residual water content distributions in a fuel gas flow channel and an oxidation gas flow channel and a moisture content distribution in an electrolyte membrane in a cell plane of each single cell while taking into consideration water transfer that occurs between an anode electrode and a cathode electrode via the electrolyte membrane. The estimating unit estimates a residual water content of the fuel gas flow channel during a standstill from a shutdown to a restart of the fuel cell system based on temperature information on each single cell acquired during the standstill. In addition, the fuel cell system is capable of executing a scavenging process on the fuel gas flow channel when the residual water content of the fuel gas flow channel estimated during the standstill exceeds a predetermined threshold.
    • 本发明的目的是提供一种能够提高停止时的含水量估计精度的燃料电池系统。 燃料电池系统包括具有层叠在一起的多个单个电池的燃料电池和用于估计燃料气体流路和氧化气体流动通道中的残余含水量分布和电池中的电解质膜中的含水量分布的估计单元 考虑到通过电解质膜在阳极电极和阴极电极之间发生的水分传递。 估计单元基于在停止期间获取的每个单个电池的温度信息来估计在从关闭到重新启动燃料电池系统期间停止的燃料气体流动通道的残余水分含量。 此外,当在停止期间估计的燃料气体流动通道的剩余水分含量超过预定阈值时,燃料电池系统能够对燃料气体流动通道执行扫气过程。
    • 10. 发明授权
    • Fuel cell system
    • 燃料电池系统
    • US08293421B2
    • 2012-10-23
    • US13163381
    • 2011-06-17
    • Masahiro OkuyoshiMasaaki MatsusueMasashi Toida
    • Masahiro OkuyoshiMasaaki MatsusueMasashi Toida
    • H01M8/04
    • H01M8/04119H01M8/04141H01M8/04358H01M8/04388H01M8/04395H01M8/045H01M8/04507H01M8/04529H01M8/04835H01M8/0485H01M8/0488H01M8/04992
    • The aim of the invention is to improve the accuracy of estimating residual water content in a fuel cell system adopting an intermittent operation mode and to accurately suppress cell voltage reduction due to water accumulation caused by the intermittent operation. The fuel cell system includes: a fuel cell having a cell laminate; an estimating unit for estimating a residual water content distribution in a reactant gas flow channel and a moisture content distribution in an electrolyte membrane in a cell plane of each single cell while taking into consideration water transfer that occurs between an anode electrode and a cathode electrode via the electrolyte membrane; and an operation control unit which changes the content of an intermittent operation when a residual water content in the reactant gas flow channel estimated by the estimating unit is equal to or greater than a predetermined threshold.
    • 本发明的目的是提高采用间歇运转模式的燃料电池系统中的残留含水量的估计精度,并能够精确地抑制由间歇运转引起的积水引起的电池电压降低。 燃料电池系统包括:具有电池层叠体的燃料电池; 估计单元,用于在考虑到在阳极电极和阴极电极之间发生的水转移的同时考虑反应物气体流路中的残留含水量分布和每个单电池的单元面中的电解质膜中的水分含量分布 电解质膜; 以及操作控制单元,其在由所述估计单元估计的所述反应物气体流路中的残留水分含量为规定阈值以上时,变更所述间歇动作的内容。