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    • 1. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2014127452A
    • 2014-07-07
    • JP2012285873
    • 2012-12-27
    • Nissan Motor Co Ltd日産自動車株式会社
    • IKEDA NOBUHISACHIKUGO HAYATONISHIMURA HIDETAKA
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To improve the durability of a cooling water circulation passage.SOLUTION: Provided is a fuel cell system 100 for generating power by supplying an anode gas and a cathode gas to a fuel cell 1, the fuel cell system comprising: a coolant circulation passage 46 in which a coolant for cooling the fuel cell 1 is circulated; a circulation pump 46 provided in the coolant circulation passage 41 and used for circulating the coolant; circulation pump control means 63 for controlling the rotation speed of the circulation pump 46 on the basis of the operating condition of the fuel cell system 100; basic lower-limit pressure calculation means 71 for calculating the basic lower-limit pressure of the anode gas on the basis of the operating condition of the fuel cell system 100; circulation pump lower-limit pressure calculation means 72 for calculating, on the basis of the rotation speed of the circulation pump 46, an anode gas lower-limit pressure for the circulation pump relative to the rotation speed of the circulation pump; and anode pressure controlling means 78, 79 for controlling the pressure of the anode gas supplied to the fuel cell 1 on the basis of the basic lower-limit pressure and the circulation pump-use lower-limit pressure whichever is larger.
    • 要解决的问题:提高冷却水循环通道的耐久性。解决方案:提供一种用于通过向燃料电池1供应阳极气体和阴极气体来发电的燃料电池系统100,该燃料电池系统包括: 用于冷却燃料电池1的冷却剂循环的冷却剂循环通道46; 设置在冷却剂循环通道41中并用于使冷却剂循环的循环泵46; 循环泵控制装置63,用于根据燃料电池系统100的运行状况控制循环泵46的转速; 基于燃料电池系统100的运行状态计算阳极气体的基本下限压力的基本下限压力计算单元71; 循环泵下限压力计算装置72,用于根据循环泵46的转速计算循环泵相对于循环泵的转速的阳极气体下限压力; 以及阳极压力控制装置78,79,用于基于基本下限压力和循环泵使用下限压力来控制供给到燃料电池1的阳极气体的压力,取较大者。
    • 2. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2014089813A
    • 2014-05-15
    • JP2012237645
    • 2012-10-29
    • Nissan Motor Co Ltd日産自動車株式会社
    • CHIKUGO HAYATO
    • H01M8/06H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To provide a fuel cell system which restrains liquid water from collecting in a fuel cell stack.SOLUTION: A fuel cell system 1 comprises: purge valves 49, 50 provided in anode off-gas discharge passages 45, 46 and used for discharging liquid water generated by electrode reaction in a fuel cell stack 2 to the outside; purge valve control means 7 for controlling the purge valves 49, 50 on the basis of the amount of power generated by the fuel cell stack 2; cathode gas flow rate control means 7 for controlling a cathode gas flow rate on the basis of the control state of the purge valves; cathode gas flow rate limiting means 7 for limiting the cathode gas flow rate on the basis of the state of a cathode supply system 3; purge valve limiting means 7 for limiting the opening of the purge valves 49, 50 when the cathode gas flow rate is limited; and generated amount of power limiting means 7 for limiting the generated amount of power of the fuel cell stack 2 when the purge values are limited.
    • 要解决的问题:提供一种抑制液态水收集在燃料电池堆中的燃料电池系统。解决方案:燃料电池系统1包括:设置在阳极废气排放通道45,46中的排气阀49,50,并使用 用于将燃料电池组2中的电极反应产生的液态水排出到外部; 基于由燃料电池堆2产生的动力量来控制排气阀49,50的净化阀控制装置7; 阴极气体流量控制装置7,用于根据清洗阀的控制状态来控制阴极气体流量; 阴极气体流量限制装置7,用于基于阴极供应系统3的状态来限制阴极气体流量; 排气阀限制装置7,用于在限制阴极气体流量时限制排气阀49,50的打开; 以及产生量的功率限制装置7,用于限制吹扫值受限时燃料电池堆2的功率的产生量。
    • 3. 发明专利
    • Cooling system
    • 冷却系统
    • JP2013030387A
    • 2013-02-07
    • JP2011166384
    • 2011-07-29
    • Nissan Motor Co Ltd日産自動車株式会社
    • CHIKUGO HAYATO
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a cooling system with high energy efficiency capable of stabilizing an operation temperature of a fuel cell, and sufficiently radiating heat of a cooling liquid even under an environment in which the temperature of ambient air is high.SOLUTION: A cooling system includes a fuel cell (10), a radiator (20) radiating heat of a cooling liquid, a cooling liquid circulation passage (30) in which the cooling liquid circulates and flows, a radiator bypass passage (40) connecting a cooling liquid circulation passage upstream of the radiator and a cooling liquid circulation passage downstream of the radiator so that the cooling liquid bypasses the radiator, a heater core (60) provided on the radiator bypass passage, a heater core bypass passage (70) branched from an upper stream than the heat core so that the cooling liquid bypasses the heater core, and a flow rate adjustment part (70a) making the cooling liquid difficult to flow to the heater core when the cooling liquid is under a low temperature, and making the cooling liquid easy to flow to the heater core as the cooling liquid is getting warmer.
    • 要解决的问题:提供一种具有能够稳定燃料电池的操作温度的高能量效率的冷却系统,并且即使在环境空气的温度高的环境下也能够充分地散热冷却液体的热量。 解决方案:一种冷却系统,包括燃料电池(10),散发冷却液体的热量的散热器(20),冷却液循环流动的冷却液循环通路(30),散热器旁路通路 40),连接散热器上游的冷却液循环通道和散热器下游的冷却液循环通路,使得冷却液旁路散热器,设置在散热器旁路通路上的加热器芯(60),加热器芯旁路通路 70),使得冷却液旁路加热器芯,并且当冷却液处于低温时使得冷却液难以流向加热器芯的流量调节部(70a) 并且随着冷却液变暖,使冷却液容易流入加热器芯。 版权所有(C)2013,JPO&INPIT
    • 4. 发明专利
    • Fuel cell system, and method of diagnosing abnormal condition of the same
    • 燃料电池系统及其异常状态的诊断方法
    • JP2009301804A
    • 2009-12-24
    • JP2008153336
    • 2008-06-11
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUNAGA AKIRASHIMOI RYOICHICHIKUGO HAYATOKUMADA MITSUNORI
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To take some steps at a stage before any system stoppage by detecting the same when hydrogen density in a cathode rises during a left-alone period after the stoppage and there is a risk that the hydrogen at a cathode side can no more be properly dealt with at system start-up.
      SOLUTION: A system control device 30 for totally controlling action of a system as a whole is provided with an abnormal condition diagnostic part 33. The abnormal condition diagnostic part 33 determines in finishing stoppage control whether a maximum hydrogen density in the cathode during the left-alone period after the system stoppage exceeds a hydrogen disposal capacity limit at a system start-up, and if it does, system abnormalities are determined to have occurred.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在任何系统停止之前的阶段通过检测相同的步骤来采取一些步骤,当阴极中的氢密度在停止后的单独时间期间上升时,并且存在阴极处的氢气的风险 在系统启动时无法正确处理。 解决方案:用于完全控制系统整体动作的系统控制装置30设置有异常状态诊断部33.异常状态诊断部33在完成停止控制中确定阴极内的最大氢密度是否在 系统停止后的左侧时间段在系统启动时超过氢排放能力限制,如果确实发生了系统异常。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Operation shut-down device of fuel cell and operation shut-down method of fuel cell
    • 燃料电池的操作关闭装置和燃料电池的操作关闭方法
    • JP2007250277A
    • 2007-09-27
    • JP2006069774
    • 2006-03-14
    • Nissan Motor Co Ltd日産自動車株式会社
    • SHIMADA KAZUHIDEUEHARA TETSUYACHIKUGO HAYATO
    • H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To provide an operation shut-down device and an operation shut-down method of a fuel cell avoiding hydrogen stoichiometry shortage during the decompression of a fuel electrode.
      SOLUTION: The device is provided with a decompression part 41 decompressing a fuel electrode by taking out power generated by a fuel cell 3, a hydrogen shortage prediction part 42 predicting whether a volume of hydrogen in the fuel electrode falls below a level needed for maintaining power generation during the decompression of the fuel electrode, and a hydrogen substitution promotion part 43 promoting hydrogen substitution in the fuel electrode at the time when the shortage of hydrogen is predicted.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种在燃料电极减压期间避免氢化学计量不足的燃料电池的操作关闭装置和操作关闭方法。 解决方案:装置设置有减压部件41,通过取出由燃料电池3产生的电力来减压燃料电极,氢缺乏预测部件42预测燃料电极中的氢气体积是否低于所需的水平 用于在燃料电极减压期间维持发电;以及氢气替代促进部43,其在预测到氢的不足时促进燃料电极中的氢取代。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2006107880A
    • 2006-04-20
    • JP2004291642
    • 2004-10-04
    • Nissan Motor Co Ltd日産自動車株式会社
    • AOKI TETSUYASUZUKI KEISUKECHIKUGO HAYATOIGARASHI HITOSHI
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To eliminate air shortage of a fuel cell stack when air is supplied to a combustor from a compressor via a bypass passage by opening a cutoff valve.
      SOLUTION: The fuel cell stack 1 and the compressor 3 for supplying air to it are connected through an oxidizer supply passage 10. This fuel cell system is provided with: the bypass passage 12 for directly supplying the air to the combustor by branching from the oxidizer supply passage 10 to bypass the fuel cell stack 1; and the cutoff valve 2 for opening/closing the bypass passage 12. A controller 13 increases a target flow rate of the compressor 3 when the cutoff valve 2 is determined to be opened, and causes the cutoff valve 2 to execute an opening operation after delaying it for a predetermined period.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了消除当通过打开截止阀通过旁通通道从压缩机向燃烧器供给空气时燃料电池堆的空气不足。 解决方案:用于向其供应空气的燃料电池堆1和压缩机3通过氧化剂供应通道10连接。该燃料电池系统设置有旁路通道12,用于通过分支直接供应燃烧器的空气 从氧化剂供给通道10绕过燃料电池堆1; 以及用于打开/关闭旁路通道12的截止阀2.控制器13在断开阀2被确定为打开时增加压缩机3的目标流量,并且使得截止阀2在延迟之后执行打开操作 它预定的时间。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Fuel cell system and fuel cell vehicle
    • 燃油电池系统和燃料电池车
    • JP2006049202A
    • 2006-02-16
    • JP2004231002
    • 2004-08-06
    • Nissan Motor Co Ltd日産自動車株式会社
    • CHIKUGO HAYATOKAZAMA ISAMU
    • H01M8/04B60L3/00B60L11/18H01M8/00H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of continuously being operated by limiting operation conditions without stopping the operation even if some trouble arises at an exhaust hydrogen treatment system.
      SOLUTION: A control device 21 controls the fuel cell system 1 as a whole, and serves both as an exhaust hydrogen treatment system trouble state detecting means 22 and an operation limiting means 23. When the system trouble state detecting means 22 detects the trouble state of the exhaust hydrogen treatment system including a purge valve 11 and an exhaust hydrogen treatment device 13, the operation limiting means 23 limits the operation conditions of a fuel cell stack 2 to continue operation in accordance with the trouble state detected by the system trouble detecting means 22.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:即使在排气氢处理系统出现问题的情况下,也能够通过限制运转条件而不停止运转来提供能够连续运转的燃料电池系统。 解决方案:控制装置21整体控制燃料电池系统1,既用作排气氢处理系统故障状态检测装置22和操作限制装置23.当系统故障状态检测装置22检测到 包括排气阀11和排气氢处理装置13的废氢处理系统的故障状态,操作限制装置23根据系统故障检测到的故障状态来限制燃料电池堆2的运行状态继续运转 检测装置22.版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • 燃料電池システム
    • 燃油电池系统
    • JP2015015193A
    • 2015-01-22
    • JP2013142007
    • 2013-07-05
    • 日産自動車株式会社Nissan Motor Co Ltd
    • HOSHI SEICHIKUGO HAYATO
    • H01M8/04B60L11/18
    • Y02E60/50
    • 【課題】ISへの移行に伴い、電圧制御によってIV特性の低下を抑制しつつ電流制御と連動してシステム異常を回避する燃料電池システムを提供する。【解決手段】燃料電池システム100は、燃料電池1の劣化抑制のために燃料電池1の電流を所定の電流値でガードするガード部214と、を備える。燃料電池システム100は、システムの状態に応じて燃料電池1の電流を所定の電流値以下に制限する異常回避制限部220と、システム要求電力が小さいときには、IS制御を実施するIS手段202と、を備える。燃料電池システム100は、IS制御に移行するときに燃料電池1の電圧を劣化抑制のための電圧値に制限するIS制御部300を含む。IS制御部300は、IS制御の許可条件又は復帰条件として、異常回避制限部220による制限値とガード部214による電流値とに基づいて、IS制御の実施が可能か否かを判断する。【選択図】図2
    • 要解决的问题:提供一种通过互锁电流控制来避免系统异常的燃料电池系统,同时通过使用电压控制来抑制IV特性的降低,伴随着对IS的迁移。燃料电池系统100包括限制单元214 燃料电池系统100包括:异常回避限制单元220,用于限制在燃料电池1中流动的电流等于或等于或等于或等于或等于 根据系统的状态低于预定电流值; 以及当系统请求功率小时用于执行IS控制的IS装置202。 燃料电池系统100包括用于将燃料电池1的电压限制为用于在迁移到IS控制时抑制劣化的电压值的IS控制单元300。 IS控制单元300基于异常避免限制单元220的限制值和由限制单元214的当前值作为IS控制的许可条件或返回条件来确定是否可以执行IS控制 。
    • 9. 发明专利
    • 燃料電池システム
    • 燃油电池系统
    • JP2014241211A
    • 2014-12-25
    • JP2013122873
    • 2013-06-11
    • 日産自動車株式会社Nissan Motor Co Ltd
    • CHIKUGO HAYATO
    • H01M8/04
    • Y02E60/50
    • 【課題】強制停止後の起動時において燃料電池から排出されるアノードガスの濃度上昇を抑制する。【解決手段】燃料電池システム100は、カソードガスを燃料電池に供給するポンプ122と、燃料電池へのアノードガスの供給を遮断する遮断弁132と、を備える。また、燃料電池システム100は、燃料電池から排出されたアノードガスをカソードガス排出通路124へパージするパージ弁362と、を備える。さらに燃料電池システム100は、燃料電池を起動するときは、遮断弁132を開き、ポンプ122を第1所定期間駆動して燃料電池のカソード流路から側滞留アノードガスを排出し、その後にパージ弁362を開くコントローラー150を備える。コントローラー150は、燃料電池システム100を強制停止した後に起動するときは、ポンプ122を第2所定期間駆動して滞留アノードガスを排出し、その後に遮断弁132を開き、パージ弁362を開く。【選択図】図4
    • 要解决的问题:为了防止在强制停止后的激活情况下从燃料电池排出的阳极气体的浓度增加。解决方案:燃料电池系统100包括用于向燃料电池供应阴极气体的泵122和截止阀 132,用于切断向燃料电池供应阳极气体。 燃料电池系统100还包括用于将从燃料电池排出的阳极气体净化到阴极气体排出通道124的净化阀36.该燃料电池系统100还包括控制器150,其中当启动燃料电池时,截止阀 132打开,通过将泵122驱动第一预定时间段,侧面停滞的阳极气体从燃料电池的阴极通道排出,然后清洗阀362打开。 在燃料电池系统100被强制停止后的激活的情况下,控制器150通过驱动泵122排出第二预定时间段的停滞阳极气体,然后打开截止阀132,并且打开排气阀362。
    • 10. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2014127451A
    • 2014-07-07
    • JP2012285867
    • 2012-12-27
    • Nissan Motor Co Ltd日産自動車株式会社
    • IKEDA NOBUHISACHIKUGO HAYATONISHIMURA HIDETAKA
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To improve the durability of a cooling water circulation passage.SOLUTION: Provided is a fuel cell system 100 for generating power by supplying a reaction gas to a fuel cell 1, the fuel cell system comprising: a coolant circulation passage 41 in which a coolant for cooling the fuel cell 1 is circulated; a circulation pump 46 provided in the coolant circulation passage 41 and used for circulating the coolant; pump inlet pressure detection means for detecting the inlet pressure of the circulation pump 46; pressure control means for controlling, on the basis of the operating condition of the fuel cell system 100, the pressure of a reaction gas supplied to the fuel cell 1; and pressure correction means which, when the pump inlet pressure became negative, corrects, on the basis of the pump inlet pressure, the pressure of the reaction gas controlled by the pressure control means by increasing it.
    • 要解决的问题:提高冷却水循环通道的耐久性。解决方案:提供一种用于通过向燃料电池1供应反应气体来发电的燃料电池系统100,该燃料电池系统包括:冷却剂循环通道41 其中用于冷却燃料电池1的冷却剂循环; 设置在冷却剂循环通道41中并用于使冷却剂循环的循环泵46; 用于检测循环泵46的入口压力的泵入口压力检测装置; 压力控制装置,用于根据燃料电池系统100的操作条件控制供给到燃料电池1的反应气体的压力; 以及压力校正装置,当泵入口压力变为负值时,基于泵入口压力,通过增加压力控制装置控制的反应气体的压力来进行校正。