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    • 11. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2013196782A
    • 2013-09-30
    • JP2012059269
    • 2012-03-15
    • Nissan Motor Co Ltd日産自動車株式会社
    • TOMITA YOSUKECHIKUGO HAYATOASAI YOSHITOMO
    • H01M8/04H01M8/06H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system ensuring optimal air increase depending on the state of flooding, by suppressing the influence of degradation in IV characteristics, and the like.SOLUTION: The fuel cell system including a fuel cell stack 10 constituted by stacking a plurality of cells, generating electric power when fuel gas is supplied to an anode and oxidant gas is supplied to a cathode, includes a supply amount setting section for setting the supply flow rate of an oxidant gas supply machine in response to a request of the fuel cell system, and a supply amount correcting section which corrects the supply flow rate to increase more for a larger voltage difference, obtained by subtracting the voltage of a specific cell from the average cell voltage of the fuel cell stack 10.
    • 要解决的问题:提供一种燃料电池系统,其通过抑制IV特性劣化的影响等来确保根据淹水状态的最佳空气增加。解决方案:包括由燃料电池组10构成的燃料电池组10的燃料电池系统 堆叠多个电池,当向阳极供给燃料气体并向氧化剂气体供给时产生电力,包括:供给量设定部,其响应于氧化剂气体供给机构的要求设定供给流量; 燃料电池系统和供给量校正部,其通过从燃料电池堆10的平均电池电压中减去特定电池的电压而获得的较大的电压差来补正供给流量。
    • 12. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2009199940A
    • 2009-09-03
    • JP2008041846
    • 2008-02-22
    • Nissan Motor Co Ltd日産自動車株式会社
    • IGARASHI HITOSHIGOTO KENICHITANIGUCHI YASUHIROYONEKURA KENJICHIKUGO HAYATO
    • H01M8/04H01M8/00H01M8/10
    • H01M8/04358H01M8/04029H01M8/04223H01M8/04268H01M8/04328H01M8/04335H01M8/04417H01M8/04768H01M16/006H01M2250/20Y02T90/32
    • PROBLEM TO BE SOLVED: To provide a fuel cell system in which it is prevented that cooling water cooled by a radiator wherein there is temperature difference from fuel cell temperature flows into a fuel cell after power generation of the fuel cell is stopped.
      SOLUTION: A power generation and stop mode switching determination part 31 of a controller 30 carries out switching determination of two operation modes of a normal power generation mode to carry out normal power generation or a power generation stop mode to stop power generation based on accelerator opening, a car speed, and battery information. In power generation and stop mode, a compressor is stopped by a compressor control part 33, a hydrogen pressure valve is stopped by a hydrogen pressure-adjusting valve control part 35, and a power manager control part 34 stops taking out of an electric power from the fuel cell. If the temperature difference between cooling water temperature of the fuel cell exit and that of the radiator exit is small, a cooling system control part 32 suppresses the operation of a cooling water pump.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种燃料电池系统,其中防止在燃料电池的发电停止之后与燃料电池温度存在温度差的燃料电池流入燃料电池的由散热器冷却的冷却水。 解决方案:控制器30的发电和停止模式切换确定部分31执行正常发电模式的两种操作模式的切换确定,以执行正常发电或发电停止模式以停止发电 加速器开启,车速和电池信息。 在发电停止模式中,压缩机由压缩机控制部33停止,氢压阀由氢压调节阀控制部35停止,功率管理控制部34停止从 燃料电池。 如果燃料电池出口的冷却水温度与散热器出口的冷却水温度之间的温差小,则冷却系统控制部32抑制冷却水泵的运转。 版权所有(C)2009,JPO&INPIT
    • 13. 发明专利
    • Fuel cell system and its operation stop method
    • 燃料电池系统及其运行停止方法
    • JP2009037770A
    • 2009-02-19
    • JP2007199088
    • 2007-07-31
    • Nissan Motor Co Ltd日産自動車株式会社
    • KUMADA MITSUNORISHIMOI RYOICHICHIKUGO HAYATOFUKUDA TAKASHIKAGEYAMA KAZUHIROMATSUNAGA AKIRA
    • H01M8/04H01M8/10
    • H01M8/04753H01M8/04104H01M8/04238H01M8/04395H01M8/04589H01M8/0491H01M2008/1095
    • PROBLEM TO BE SOLVED: To effectively restrain performance degradation of a fuel cell, and shorten time needed for operation stoppage of a system. SOLUTION: While oxygen remaining at a cathode 1b side is fully consumed by current extraction from a fuel cell stack 1 by a current extraction part 31, an air system inlet valve 23 and an air system outlet valve 24 are closed to restrain ingress of outer air into a regulated zone. Here, closing of the air system inlet valve 23 and the air system outlet valve 24 is to be carried out after an anode pressure is boosted above atmospheric pressure and higher than a cathode pressure. With this, oxygen consumption speed at a cathode 1b side can be heightened without adversely affecting an electrolyte film of the fuel cell stack 1, so that time needed for stoppage of the system can be shortened. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:有效地抑制燃料电池的性能下降,并缩短系统的操作停止所需的时间。 解决方案:当通过电流提取部分31从燃料电池堆1的电流抽出完全消耗在阴极1b侧剩余的氧气时,空气系统入口阀23和空气系统出口阀24关闭以抑制入口 的外部空气进入调节区。 这里,空气系统入口阀23和空气系统出口阀24的关闭将在阳极压力升高到高于大气压并高于阴极压力的情况下进行。 由此,可以提高阴极1b侧的氧消耗速度,而不会对燃料电池堆1的电解质膜产生不利影响,从而可以缩短系统停止所需的时间。 版权所有(C)2009,JPO&INPIT
    • 14. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2007220538A
    • 2007-08-30
    • JP2006041128
    • 2006-02-17
    • Nissan Motor Co Ltd日産自動車株式会社
    • OBATA TAKEAKIKATO MAKOTOSUZUKI KEISUKECHIKUGO HAYATO
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To superbly supply a fuel cell with fuel gas necessary for power generation. SOLUTION: The fuel cell system is provided with a fuel cell stack 10 generating power with the use of hydrogen gas and air gas, a hydrogen gas pressure control valve 22 controlling supply pressure of hydrogen gas supplied to the fuel cell stack 10, and a system controller 60 controlling so as limit a power generation volume of the fuel cell stack 10 based on a relation between a control volume of the hydrogen gas pressure control valve 22 changing in accordance with an upstream pressure of the hydrogen gas pressure control valve 22 and a power generation volume of the fuel cell stack 10. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为燃料电池提供发电必需的燃料气体。 解决方案:燃料电池系统设置有使用氢气和空气气体发电的燃料电池堆10,控制供给燃料电池堆10的氢气供给压力的氢气压力控制阀22, 以及根据氢气压力控制阀22的控制容积根据氢气压力控制阀22的上游压力而变化的关系,控制燃料电池堆10的发电量限制的系统控制器60 和燃料电池堆10的发电量。(C)2007,JPO&INPIT
    • 15. 发明专利
    • Control device of fuel cell system
    • 燃料电池系统的控制装置
    • JP2007172888A
    • 2007-07-05
    • JP2005365270
    • 2005-12-19
    • Nissan Motor Co Ltd日産自動車株式会社
    • KATO MAKOTOSUZUKI KEISUKECHIKUGO HAYATO
    • H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To continue the operation of a fuel cell system by supplying hydrogen in high responsiveness even if an abnormality arises in a downstream pressure sensor of a hydrogen pressure control valve.
      SOLUTION: When a detected value with the downstream pressure sensor 29 of the hydrogen pressure control valve is abnormal or the difference between detected values of the downstream pressure sensor of a doubled hydrogen pressure control valve reaches a prescribed value or higher, a hydrogen pressure control part 35 determines that the downstream pressure sensor 29 of the hydrogen pressure control valve is abnormal. When the downstream pressure sensor 29 of the hydrogen pressure control valve is determined abnormal, based on a detected value of a stack inlet hydrogen pressure sensor 31, a hydrogen pressure control valve 15 is controlled, and the operation of the fuel cell system is continued.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:即使在氢气压力控制阀的下游压力传感器中出现异常,继续以高响应性供给氢气来继续燃料电池系统的操作。 解决方案:当氢压力控制阀的下游压力传感器29的检测值异常或双氢压力控制阀的下游压力传感器的检测值之间的差达到规定值以上时,氢 压力控制部35判定氢压控制阀的下游压力传感器29异常。 当氢气压力控制阀的下游压力传感器29被判定为异常时,根据堆入口氢压传感器31的检测值,控制氢压控制阀15,继续燃料电池系统的动作。 版权所有(C)2007,JPO&INPIT
    • 16. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2006309976A
    • 2006-11-09
    • JP2005128352
    • 2005-04-26
    • Nissan Motor Co Ltd日産自動車株式会社
    • ASAI SHIYOUHOOBATA TAKEAKICHIKUGO HAYATOAOKI TETSUYA
    • H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To prevent the generation of noise caused by drop in control performance of a fluid control means.
      SOLUTION: When hydrogen pressure is in a first prescribed value or less, a controller 28 functions as a second fluid operation amount producing means, and varies the operation amount of an air pressure control valve 13 so that when the pressure and the flow rate of air are dropped, the air pressure control valve 13 becomes a full closing state and comes within a range of an operation point generating no noise. Thereby, since the limitation to the operation amount of the air pressure control valve 13 caused by coming off of the air pressure control valve 13 from the range of the operation point is eliminated, the generation of noise is suppressed.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了防止由流体控制装置的控制性能下降引起的噪声的产生。 解决方案:当氢压力处于第一规定值以下时,控制器28用作第二流体运转量产生装置,并且改变空气压力控制阀13的操作量,使得当压力和流量 空气速度下降,空气压力控制阀13变为完全关闭状态,并且在不产生噪声的操作点的范围内。 因此,由于从操作点的范围限制了由空气压力控制阀13脱落引起的空气压力控制阀13的操作量的限制,因此抑制噪声的产生。 版权所有(C)2007,JPO&INPIT
    • 18. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2012028233A
    • 2012-02-09
    • JP2010167673
    • 2010-07-27
    • Nissan Motor Co Ltd日産自動車株式会社
    • CHIKUGO HAYATOOSADA TAKAHITO
    • H01M8/04H01M8/02H01M8/10H01M8/24
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To solve such a problem that a pressure loss of a passage in a cooling system increases in a conventional fuel cell system.SOLUTION: A fuel cell system has a structure in which a cooling medium is distributed and circulated to a fuel cell FC and system constituting components S1, S2, and includes two or more of coolant discharging ports 1A, 1B which discharge the coolant medium from the fuel cell FC. One out of the respective coolant discharge ports is a coolant discharge port 1A constituting the cooling system of the fuel cell FC, and the other coolant discharge port is a coolant discharge port 1B constituting a coolant circulation system of the system constituting components S1, S 2, thereby preventing the pressure loss in the passage of the cooling medium from increasing.
    • 解决的问题为了解决传统的燃料电池系统中冷却系统中的通道的压力损失增加的问题。 解决方案:燃料电池系统具有其中冷却介质被分配并循环到燃料电池FC和构成部件S1,S2的系统的结构,并且包括两个或更多个排出冷却剂的冷却剂排出口1A,1B 介质来自燃料电池FC。 各个冷却剂排出口中的一个是构成燃料电池FC的冷却系统的冷却剂排出口1A,另一个冷却剂排出口是构成组成部件S1,S2的系统的冷却剂循环系统的冷却剂排出口1B ,从而防止冷却介质的通过中的压力损失增加。 版权所有(C)2012,JPO&INPIT
    • 19. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2010067561A
    • 2010-03-25
    • JP2008234865
    • 2008-09-12
    • Nissan Motor Co Ltd日産自動車株式会社
    • TANIGUCHI YASUHIROIGARASHI HITOSHICHIKUGO HAYATO
    • H01M8/04H01M8/00H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To estimate accurately the flow-rate of a cooling liquid without directly detecting the flow-rate of the cooling liquid of the cooling system.
      SOLUTION: A control part 10 calculates a flow-rate reference value of a cooling liquid based on the exit cooling liquid pressure Pco, and estimates the flow-rate of the cooling liquid by correcting the calculated flow-rate reference value of the cooling liquid based on the entrance cooling liquid temperature Tcc. In this case, the control part 10, when correcting the calculated flow-rate reference value of the cooling liquid, corrects it so that the flow-rate of the cooling liquid to be estimated may be smaller, the lower the entrance cooling liquid temperature Tcc is.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:准确地估计冷却液的流量,而不直接检测冷却系统的冷却液的流量。 解决方案:控制部件10基于出口冷却液体压力Pco计算冷却液的流量参考值,并且通过校正所计算的流量参考值来估算冷却液的流量 冷却液基于入口冷却液温度Tcc。 在这种情况下,控制部10在校正计算出的冷却液的流量基准值时,对其进行校正,使得要估计的冷却液的流量可以变小,入口冷却液温度Tcc 是。 版权所有(C)2010,JPO&INPIT