公开(公告)号：US20100261082A1

公开(公告)日：2010-10-14

申请号：US12526188

申请日：2008-02-14

申请人： Shigeto Kajiwara ,  Tomonori Imamura

发明人： Shigeto Kajiwara ,  Tomonori Imamura

IPC分类号： H01M8/04

CPC分类号： H01M8/0485 ,  H01M8/04007 ,  H01M8/04082 ,  H01M8/04253 ,  H01M8/0432 ,  H01M8/04343 ,  H01M8/0435 ,  H01M8/04358 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04649 ,  H01M8/04955

摘要： Provided is a fuel cell system which can accurately detect the water state of a fuel cell to appropriately control the water content of the fuel cell. Based on an FC outlet temperature detected by a temperature sensor, an FC outlet temperature change speed detection unit detects an FC outlet temperature change speed for a unit time. If the FC outlet temperature change speed detection unit judges that the detected FC outlet temperature change speed is lower than a change speed reference value stored in a memory, an impedance measurement instruction is transmitted to an impedance calculation unit. On receiving the impedance measurement instruction from the FC outlet temperature change speed detection unit, the impedance calculation unit performs the impedance measurement for the second time. In consequence, it is possible to realize such scavenging control as to keep the water content of a fuel cell at an appropriate level by the minimum number of impedance measurement times (e.g., twice).

摘要翻译： 提供一种能够精确地检测燃料电池的水状态以适当地控制燃料电池的水分的燃料电池系统。 基于由温度传感器检测到的FC出口温度，FC出口温度变化速度检测单元在单位时间内检测FC出口温度变化速度。 如果FC出口温度变化速度检测单元判断检测到的FC出口温度变化速度低于存储在存储器中的变化速度基准值，则阻抗测量指令被发送到阻抗计算单元。 在从FC出口温度变化速度检测单元接收阻抗测量指令时，阻抗计算单元第二次进行阻抗测量。 因此，可以实现这样的清除控制，以将燃料电池的含水量保持在适当的水平，由最小的阻抗测量次数（例如两次）来实现。

公开(公告)号：US20100173210A1

公开(公告)日：2010-07-08

申请号：US12664852

申请日：2008-07-17

申请人： Shigeto Kajiwara

发明人： Shigeto Kajiwara

IPC分类号： H01M8/04

CPC分类号： B60L11/1887 ,  B60L2200/26 ,  H01M8/04119 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04303 ,  H01M8/04492 ,  H01M8/04626 ,  H01M8/04753 ,  H01M8/1007 ,  Y02T90/34

摘要： A fuel cell system comprises a fuel cell, a reactant gas supply device, and a capacitor which supplies a power to various devices when the fuel cell is in a temporary power generation stop state. The fuel cell system drives the reactant gas supply device based on a predetermined current instruction value to supply a reactant gas to the fuel cell, thereby generating the power. Such a fuel cell system comprises a control device which judges whether or not the current instruction value is below a water balance zero current value when the water content of the fuel cell is below a predetermined threshold and the stored electric charge of the capacitor is a predetermined threshold or more. If affirmative judgment is obtained, the control device switches the power generation state of the fuel cell to the temporary power generation stop state.

摘要翻译： 燃料电池系统包括燃料电池，反应气体供给装置和当燃料电池处于临时发电停止状态时向各种装置供电的电容器。 燃料电池系统基于预定的电流指令值驱动反应气体供应装置，以将反应气体供应到燃料电池，从而产生电力。 这样的燃料电池系统包括控制装置，当燃料电池的含水量低于预定阈值时，判定当前指示值是否低于水平衡零电流值，并且电容器的存储电荷是预定的 阈值以上 如果得到肯定判断，则控制装置将燃料电池的发电状态切换到临时发电停止状态。

公开(公告)号：US20090162710A1

公开(公告)日：2009-06-25

申请号：US12295130

申请日：2007-09-12

申请人： Shigeto Kajiwara

发明人： Shigeto Kajiwara

IPC分类号： H01M8/04 ,  H01M8/06

CPC分类号： H01M8/04119 ,  H01M8/04365 ,  H01M8/0441 ,  H01M8/04507 ,  H01M8/04552 ,  H01M8/04589 ,  H01M8/04626 ,  H01M8/04656 ,  H01M8/04723 ,  H01M8/04753 ,  H01M8/0488 ,  H01M8/04947

摘要： A fuel cell system includes: a fuel cell stack for generating electric power by receiving supply of a reaction gas; an air compressor for scavenging water remaining in the fuel cell stack when power generation is stopped; a rechargeable battery for supplying electric power to the air compressor for operation thereof; and a controller for estimating an amount of water remaining in the fuel cell stack based on an alternating-current impedance of the fuel cell stack, estimating a target SOC for charging the rechargeable battery with electric power required for scavenging the amount of water, and controlling charge and discharge so that an SOC of the rechargeable battery agrees with the target SOC.

摘要翻译： 燃料电池系统包括：燃料电池堆，用于通过接收反应气体的供应产生电力; 用于在发电停止时清除燃料电池堆中剩余的水的空气压缩机; 用于向空气压缩机供电的可再充电电池用于其操作; 以及控制器，用于基于所述燃料电池堆的交流阻抗来估计所述燃料电池堆中剩余的水量，利用用于清除所述水量所需的电力估计用于对所述可再充电电池充电的目标SOC，以及控制 充电和放电，使得可再充电电池的SOC与目标SOC一致。

公开(公告)号：US08871402B2

公开(公告)日：2014-10-28

申请号：US12680963

申请日：2008-09-24

申请人： Shigeto Kajiwara ,  Tetsuya Bono

发明人： Shigeto Kajiwara ,  Tetsuya Bono

IPC分类号： H01M8/04

CPC分类号： H01M8/04313 ,  H01M8/0432 ,  H01M8/04634 ,  H01M8/04753 ,  H01M8/04783 ,  H01M2250/20 ,  Y02E60/50 ,  Y02T90/32

摘要： In a fuel cell system, it is possible to suppress fixation of a fluid circulating device arranged in a fluid passage connected to a fuel cell main body. The fuel cell system is provided with a fuel cell stack, a system main body having respective elements for supplying a fuel gas and respective elements for supplying an oxidizing gas, and a control device. The control device includes a fluid circulating device drive processing unit having a function to forcibly drive the fluid circulating device after determining, based on a judgment related to one or more of a non-use time, an operation state of the system main body, a membrane impedance state of a fuel cell, a temperature of the fuel cell stack, and a background noise, whether or not forced driving to suppress sticking of the fluid circulating device is preferable at that time.

摘要翻译： 在燃料电池系统中，可以抑制布置在连接到燃料电池主体的流体通道中的流体循环装置的固定。 燃料电池系统设置有燃料电池堆，具有用于供给燃料气体的各个元件的系统主体和用于供给氧化气体的各个元件以及控制装置。 控制装置包括流体循环装置驱动处理单元，其具有在基于与不使用时间中的一个或多个相关的系统主体的操作状态的判断中强制地驱动流体循环装置的功能， 此时优选燃料电池的膜阻抗状态，燃料电池堆的温度和背景噪声，强制驱动是否抑制流体循环装置的粘附。

公开(公告)号：US20140132193A1

公开(公告)日：2014-05-15

申请号：US14129431

申请日：2012-06-26

申请人： Shigeto Kajiwara ,  Hiroaki Mori

发明人： Shigeto Kajiwara ,  Hiroaki Mori

IPC分类号： H02P4/00 ,  B60L11/18

CPC分类号： H02P4/00 ,  B60L1/003 ,  B60L3/0046 ,  B60L11/1803 ,  B60L11/1887 ,  B60L15/2045 ,  B60L2210/14 ,  B60L2210/40 ,  B60L2240/423 ,  B60L2240/547 ,  B60L2250/28 ,  Y02T10/642 ,  Y02T10/645 ,  Y02T10/7225 ,  Y02T10/7241 ,  Y02T10/7283 ,  Y02T90/34

摘要： A fuel cell system (10) includes: a motor (16); a fuel cell (11) and an electrical storage device (13) connected to the motor (16) in parallel with each other; a first voltage converter (12) between the motor (16) and the fuel cell (11); a second voltage converter (14) between the motor (16) and the electrical storage device (13); a load circuit between the motor (16) and both the first (12) and second (14) voltage converters; and a control unit (20). The control unit (20) stops boost operation of the first voltage converter (12) when conditions VFC>VM_min and VFC>VBAT+a whereas the control unit (20) prohibits a stop of the boost operation of the first voltage converter (12) when the conditions are not satisfied, wherein in the conditions, VFC is a fuel cell terminal voltage, VBAT is an electrical storage device terminal voltage and VM_min is a load circuit input terminal voltage, set to minimize a system loss while ensuring a torque required of the motor (16).

摘要翻译： 燃料电池系统（10）包括：电动机（16）; 燃料电池（11）和与电动机（16）并联连接的蓄电装置（13）; 电动机（16）和燃料电池（11）之间的第一电压转换器（12）; 电动机（16）和蓄电装置（13）之间的第二电压转换器（14）; 电动机（16）与第一（12）和第二（14）电压转换器之间的负载电路; 和控制单元（20）。 当条件VFC> VM_min和VFC> VBAT + a时，控制单元（20）停止第一电压转换器（12）的升压操作，而控制单元（20）禁止第一电压转换器（12）的升压操作停止， 当不满足条件时，其中在条件下，VFC是燃料电池端子电压，VBAT是蓄电装置端子电压，VM_min是负载电路输入端子电压，设定为最小化系统损耗，同时确保所需的转矩 马达（16）。

公开(公告)号：US08309262B2

公开(公告)日：2012-11-13

申请号：US12738264

申请日：2008-10-14

申请人： Shigeto Kajiwara ,  Katsuki Ishigaki

发明人： Shigeto Kajiwara ,  Katsuki Ishigaki

IPC分类号： H01M8/04 ,  H01M8/10

CPC分类号： H01M8/04671 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04552 ,  H01M16/006

摘要： A fuel cell system includes a power supply controller. In response to input of a first command prior to a start of fuel cells in a state of power supply from a power source to fuel cell-related auxiliary machinery, the power supply controller reduces an amount of electric power supplied to the fuel cell-related auxiliary machinery until input of a start instruction to start the fuel cells. In response to input of a second command, the power supply controller instructs to continue the power supply from the power source to the fuel cell-related auxiliary machinery without reducing the electric power level of the power supply, irrespective of the input or non-input of the first command. The fuel cell system of this arrangement effectively reduces the amount of electric power consumed by an electricity storage device before a start of the fuel cells.

摘要翻译： 燃料电池系统包括电源控制器。 响应于在从电源向燃料电池相关的辅助机械供电的状态下的燃料电池启动之前的第一命令的输入，电源控制器减少供应到与燃料电池相关的电力的量 辅助机械直到输入启动指令才能启动燃料电池。 响应于第二命令的输入，电源控制器指示继续从电源向燃料电池相关辅助机器供电，而不降低电源的电功率水平，而不管输入或非输入 的第一个命令。 这种布置的燃料电池系统有效地减少了在燃料电池启动之前由蓄电装置消耗的电力量。

公开(公告)号：US08221925B2

公开(公告)日：2012-07-17

申请号：US12521523

申请日：2007-12-05

申请人： Tomonori Imamura ,  Shigeto Kajiwara ,  Shinji Aso

发明人： Tomonori Imamura ,  Shigeto Kajiwara ,  Shinji Aso

IPC分类号： H01M8/04

CPC分类号： H01M8/04291 ,  H01M8/04253 ,  H01M8/04649 ,  H01M8/04828

摘要： A fuel cell system capable of adequately controlling the water content of a fuel cell is provided. An impedance reference value is stored in a memory for an impedance comparator. The impedance reference value is a reference value that is set in order to prevent the water content in a fuel cell from decreasing too much. The impedance comparator compares a measured impedance value supplied from an impedance operation unit with the impedance reference value and performs scavenging control based on the comparison result.

摘要翻译： 提供能够充分控制燃料电池的含水量的燃料电池系统。 阻抗参考值存储在阻抗比较器的存储器中。 阻抗参考值是为了防止燃料电池中的水分降低太多而设定的参考值。 阻抗比较器将从阻抗运算单元提供的测量阻抗值与阻抗参考值进行比较，并根据比较结果进行扫频控制。

公开(公告)号：US08216730B2

公开(公告)日：2012-07-10

申请号：US12373868

申请日：2007-10-22

申请人： Shigeto Kajiwara

发明人： Shigeto Kajiwara

IPC分类号： H01M8/04

CPC分类号： H01M8/04828 ,  H01M8/04097 ,  H01M8/04164 ,  H01M8/04231 ,  H01M8/04291 ,  H01M8/04388 ,  H01M8/04649 ,  H01M8/04753 ,  H01M8/0485 ,  H01M8/04955 ,  H01M2008/1095

摘要： There is disclosed a fuel cell system capable of appropriately performing the impedance measurement and scavenging control of a fuel cell during the stop of the fuel cell system. According to the present embodiment, in the fuel cell system including a control section which monitors and controls the state of a fuel cell, the control section stops the supply of a fuel gas to the fuel cell, then executes scavenging process to discharge, from the system, a water content in the fuel cell, and intermittently measures the impedance of the fuel cell during the scavenging process of the fuel cell, and the control section is characterized in that the fuel gas is intermittently supplied to the fuel cell during the scavenging process of the fuel cell.

摘要翻译： 公开了能够在燃料电池系统停止期间适当地执行燃料电池的阻抗测量和清除控制的燃料电池系统。 根据本实施方式，在具有监视燃料电池的状态的控制部的燃料电池系统中，控制部停止向燃料电池供给燃料气体，然后执行清扫处理，从燃料电池 系统，燃料电池中的含水量，并且在燃料电池的扫气过程中间歇地测量燃料电池的阻抗，并且控制部分的特征在于在扫气过程中燃料气体被间歇地供应到燃料电池 的燃料电池。

公开(公告)号：US20100239929A1

公开(公告)日：2010-09-23

申请号：US12294717

申请日：2007-11-22

申请人： Shigeto Kajiwara ,  Yasuhiro Nonobe ,  Shinji Aso

发明人： Shigeto Kajiwara ,  Yasuhiro Nonobe ,  Shinji Aso

IPC分类号： H01M8/04

CPC分类号： H01M8/0432 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04291 ,  H01M8/04365 ,  H01M8/0438 ,  H01M8/0441 ,  H01M8/04492 ,  H01M8/04552 ,  H01M8/04753 ,  H01M8/0488 ,  H01M8/0491

摘要： A fuel cell system has a fuel cell stack generating electricity with a reactive gas supplied thereto and a controller supplying to the fuel cell stack the reactive gas whose pressure is higher than a normal operational pressure on condition that a temperature of the fuel cell stack is equal to or less than a predetermined threshold temperature and that a moisture content of the fuel cell stack is equal to or less than a predetermined threshold value. Where a supply pressure of the reactive gas is raised, an amount of moisture taken away by the reactive gas becomes less, and thus, water balance within the fuel cell stack shifts toward accumulation of moisture contained in the reactive gas into the film-electrode joined body. However, since the moisture content of the fuel cell stack is equal to or less than the predetermined threshold value, the system can improve the starting performance of the fuel cell stack at low temperature while suppressing flooding.

摘要翻译： 燃料电池系统具有燃料电池堆，其中供应有反应性气体的电力发电;以及在燃料电池堆的温度相等的条件下，向燃料电池堆提供压力高于正常操作压力的反应气体的控制器 达到或小于预定阈值温度，并且燃料电池堆的水分含量等于或小于预定阈值。 在反应气体的供给压力升高的情况下，由反应性气体吸收的水分量变少，因此燃料电池堆内的水分平衡向反应气体中所含的水分的积聚转移到膜 - 电极接合体 身体。 然而，由于燃料电池堆的含水量等于或小于预定阈值，所以系统可以在抑制淹水的同时提高燃料电池堆在低温下的起动性能。

公开(公告)号：US20100233560A1

公开(公告)日：2010-09-16

申请号：US12738269

申请日：2008-10-06

申请人： Shigeto Kajiwara

发明人： Shigeto Kajiwara

IPC分类号： H01M8/04

CPC分类号： H01M8/0432 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04268 ,  H01M8/04291 ,  H01M8/04529 ,  H01M8/04649 ,  H01M8/04731 ,  H01M8/04753 ,  H01M8/0485 ,  H01M8/0494 ,  H01M10/44 ,  H01M2250/402 ,  Y02B90/12

摘要： To quickly and optimally control the water condition and temperature of a fuel cell even when the fuel cell is at a low temperature and in a dry state. If it is determined that a fuel cell is in a dry state and is determined that the fuel cell is at a low temperature, a control device performs low-efficiency power generation. Performing the low-efficiency power generation makes it possible to quickly warm up the fuel cell and bring the cathode water balance of a fuel cell into a plus (wet) state, so that the water condition and temperature of the fuel cell can be quickly and optimally controlled.

摘要翻译： 即使当燃料电池处于低温和干燥状态时，也能快速，最佳地控制燃料电池的水分和温度。 如果确定燃料电池处于干燥状态并且确定燃料电池处于低温，则控制装置执行低效率发电。 执行低效率发电使得能够快速预热燃料电池并使燃料电池的阴极水平衡达到正（湿）状态，使得燃料电池的水条件和温度可以快速和 最佳控制