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    • 1. 发明申请
    • FUEL CELL SYSTEM
    • 燃油电池系统
    • US20120058404A1
    • 2012-03-08
    • US13320194
    • 2009-05-14
    • Tomotaka IshikawaKeigo SuematsuNobuo Watanabe
    • Tomotaka IshikawaKeigo SuematsuNobuo Watanabe
    • H01M8/06
    • H01M8/10H01M8/04126H01M8/04492H01M8/04544H01M8/04634H01M8/04828
    • The moisture state of a fuel cell is determined without causing any variation in the supply state of the reactant gas to be supplied to the fuel cell. An output current control section [[71]] temporarily performs a current sweep while maintaining the amount of oxidant gas to be supplied to the fuel cell. A resistance component calculation section [[72b]] calculates the resistance component in the fuel cell by using an output current value and an output voltage value of the fuel cell being that of when the current sweep is temporarily performed. A moisture content calculation section [[72c]] calculates the moisture content in the fuel cell by using the resistance component. A moisture content determination section [[72d]] determines whether or not the moisture content is equal to or lower than a dry state threshold value. A moisture content increasing processing section [[73]] performs a moisture content increasing process when the moisture content is equal to or lower than the dry state threshold value.
    • 确定燃料电池的湿气状态,而不会导致要供给到燃料电池的反应气体的供给状态的任何变化。 输出电流控制部[71]在保持向燃料电池供给的氧化剂气体的量的同时暂时进行电流扫描。 电阻分量计算部[[72b]]通过使用输出电流值和燃料电池的输出电压值作为临时进行电流扫描的电压分量来计算燃料电池中的电阻分量。 含水量计算部[[72c]]通过使用电阻成分来计算燃料电池中的含水量。 含水量确定部[[72d]]确定水分含量是否等于或低于干态阈值。 当水分含量等于或低于干态阈值时,含水量增加处理部[73]]进行含水量增加处理。
    • 2. 发明授权
    • Fuel cell system
    • 燃料电池系统
    • US08728672B2
    • 2014-05-20
    • US13320194
    • 2009-05-14
    • Tomotaka IshikawaKeigo SuematsuNobuo Watanabe
    • Tomotaka IshikawaKeigo SuematsuNobuo Watanabe
    • H01M8/06
    • H01M8/10H01M8/04126H01M8/04492H01M8/04544H01M8/04634H01M8/04828
    • The moisture state of a fuel cell is determined without causing any variation in the supply state of the reactant gas to be supplied to the fuel cell. An output current control section temporarily performs a current sweep while maintaining the amount of oxidant gas to be supplied to the fuel cell. A resistance component calculation section calculates the resistance component in the fuel cell by using an output current value and an output voltage value of the fuel cell being that of when the current sweep is temporarily performed. A moisture content calculation section calculates the moisture content in the fuel cell by using the resistance component. A moisture content determination section determines whether or not the moisture content is equal to or lower than a dry state threshold value. A moisture content increasing processing section performs a moisture content increasing process when the moisture content is equal to or lower than the dry state threshold value.
    • 确定燃料电池的湿气状态,而不会导致要供给到燃料电池的反应气体的供给状态的任何变化。 输出电流控制部在保持向燃料电池供给的氧化剂气体的量的同时暂时进行电流扫描。 电阻分量计算部通过使用输出电流值和燃料电池的输出电压值作为暂时进行电流扫描的电压分量来计算燃料电池中的电阻分量。 水分含量计算部通过使用电阻成分来计算燃料电池中的含水量。 水分含量确定部确定水分含量是否等于或低于干态阈值。 当含水量等于或低于干态阈值时,含水量增加处理部执行含水量增加处理。