公开(公告)号：US07648787B2

公开(公告)日：2010-01-19

申请号：US11597806

申请日：2005-11-28

申请人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Kenji Umayahara ,  Nobuhiro Tomosada

发明人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Kenji Umayahara ,  Nobuhiro Tomosada

IPC分类号： H01M8/04 ,  H01M8/00 ,  G01M3/00 ,  G01M3/04

CPC分类号： H01M8/04089 ,  H01M8/04231 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04589 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/04955 ,  H01M2008/1095

摘要： In a fuel cell system (100), the amount of fuel gas supplied through an fuel gas supply passage (24) and the amount of fuel gas consumed by a fuel cell (10) are detected. A difference between the amount of supplied fuel gas and the amount of consumed fuel gas is calculated by subtracting the amount of consumed fuel gas from the amount of supplied fuel gas. The pressure of the fuel gas in a leak detection passage (Cx), the change in the pressure of the detected fuel gas can be detected, and the change in the amount of fuel gas in the gas leak detection passage (Cx) due to the change in the pressure of the fuel gas can thus be detected. The difference is corrected by subtracting the change in the amount of fuel gas in the gas leak detection passage from the difference. When the corrected difference is equal to or greater than a predetermined value, a fuel gas leak is detected in the leak detection passage (Cx).

摘要翻译： 在燃料电池系统（100）中，检测通过燃料气体供给通路（24）供给的燃料气体量和燃料电池（10）所消耗的燃料气体量。 供给燃料气体量与消耗的燃料气体的量之差通过从供给燃料气体量中减去消耗的燃料气体量来计算。 在泄漏检测通道（Cx）中的燃料气体的压力可以检测检测到的燃料气体的压力的变化，并且由于气体泄漏检测通道（Cx）的燃料气体量的变化 因此可以检测燃料气体的压力的变化。 通过从差值减去气体泄漏检测通道中的燃料气体量的变化来校正差异。 当校正差异等于或大于预定值时，在泄漏检测通道（Cx）中检测到燃料气体泄漏。

公开(公告)号：US20070224473A1

公开(公告)日：2007-09-27

申请号：US11597806

申请日：2005-11-28

申请人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Kenji Umayahara ,  Nobuhiro Tomosada

发明人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Kenji Umayahara ,  Nobuhiro Tomosada

IPC分类号： H01M8/04 ,  H01M8/00

CPC分类号： H01M8/04089 ,  H01M8/04231 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04589 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/04955 ,  H01M2008/1095

摘要： In a fuel cell system (100), the amount of fuel gas supplied through an fuel gas supply passage (24) and the amount of fuel gas consumed by a fuel cell (10) are detected. A difference between the amount of supplied fuel gas and the amount of consumed fuel gas is calculated by subtracting the amount of consumed fuel gas from the amount of supplied fuel gas. The pressure of the fuel gas in a leak detection passage (Cx), the change in the pressure of the detected fuel gas can be detected, and the change in the amount of fuel gas in the gas leak detection passage (Cx) due to the change in the pressure of the fuel gas can thus be detected. The difference is corrected by subtracting the change in the amount of fuel gas in the gas leak detection passage from the difference. When the corrected difference is equal to or greater than a predetermined value, a fuel gas leak is detected in the leak detection passage (Cx).

摘要翻译： 在燃料电池系统（100）中，检测通过燃料气体供给通路（24）供给的燃料气体量和燃料电池（10）所消耗的燃料气体量。 供给燃料气体量与消耗的燃料气体的量之差通过从供给燃料气体量中减去消耗的燃料气体量来计算。 在泄漏检测通道（Cx）中的燃料气体的压力可以检测检测到的燃料气体的压力的变化，并且由于气体泄漏检测通道（Cx）的燃料气体量的变化 因此可以检测燃料气体的压力的变化。 通过从差值减去气体泄漏检测通道中的燃料气体量的变化来校正差异。 当校正差异等于或大于预定值时，在泄漏检测通道（Cx）中检测到燃料气体泄漏。

公开(公告)号：US09034495B2

公开(公告)日：2015-05-19

申请号：US12440787

申请日：2008-01-31

申请人： Kenji Umayahara ,  Michio Yoshida ,  Tadaichi Matsumoto ,  Motohiko Taniyama

发明人： Kenji Umayahara ,  Michio Yoshida ,  Tadaichi Matsumoto ,  Motohiko Taniyama

IPC分类号： H01M8/04

CPC分类号： H01M8/04619 ,  H01M8/04567 ,  H01M8/04753 ,  H01M8/04858 ,  H01M8/0488 ,  Y02E60/50

摘要： A fuel cell system performs control such that when a power requirement for the fuel cell is lower than a predetermined value, a supply of a reaction gas to a fuel cell is stopped to keep an output voltage from the fuel cell equal to a high-potential avoidance voltage that is lower than an open end voltage. The fuel cell system further controls the output voltage from the fuel cell with the high-potential avoidance voltage set to be an upper limit when the power requirement for the fuel cell is equal to or higher than a predetermined value. By setting the upper limit of the output voltage of the fuel cell to be the high-potential avoidance voltage, which is lower than the open end voltage, the catalyst can be inhibited from being degraded by an increase in the output voltage from the fuel cell up to the open end voltage.

摘要翻译： 燃料电池系统进行控制，使得当燃料电池的功率要求低于预定值时，停止向燃料电池供应反应气体以保持来自燃料电池的输出电压等于高电位 避免电压低于开路电压。 当燃料电池的功率要求等于或高于预定值时，燃料电池系统进一步控制来自燃料电池的输出电压，其中将高电位回避电压设置为上限。 通过将燃料电池的输出电压的上限设定为低于开路电压的高电位回避电压，可以抑制来自燃料电池的输出电压的增加而导致的催化剂劣化 达到开路电压。

公开(公告)号：US08589007B2

公开(公告)日：2013-11-19

申请号：US13382592

申请日：2009-07-09

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： B60L11/00 ,  H02P7/00

摘要： Provided are a fuel cell system and a control method thereof capable of inhibiting the occurrence of problems caused by surplus electrical power even in cases where the torque able to be generated by the motor is limited due to a low motor drive voltage. A fuel cell system provided with a fuel cell and a motor is further provided with required output torque calculation means for calculating a required output torque based on an output requirement, torque upper limit value calculation means for calculating a torque upper limit value of torque able to be generated by the motor based on a drive voltage of the motor, required motor torque calculation means for calculating a required motor torque based on the required output torque and the torque upper limit value, required motor power calculation means for calculating a required motor power based on the required motor torque, and required generated power calculation means for calculating a required generated power of the fuel cell based on the required motor power.

公开(公告)号：US08273490B2

公开(公告)日：2012-09-25

申请号：US12680840

申请日：2008-12-18

申请人： Kenji Umayahara ,  Takeshi Maenaka ,  Atsushi Imai

发明人： Kenji Umayahara ,  Takeshi Maenaka ,  Atsushi Imai

IPC分类号： H01M8/04

CPC分类号： H01M8/04559 ,  B60L3/0046 ,  B60L3/0053 ,  B60L11/1887 ,  B60L11/1892 ,  B60L2210/10 ,  H01M8/0488 ,  Y02T10/7216 ,  Y02T90/34

摘要： Provided is a fuel cell system that can change the number of active phases in a DC/DC converter in order to prevent overcurrent from flowing through one point (e.g., a reactor of the DC/DC converter) in the system. In step S1, whether or not the system is in a state that causes a rapid change in a voltage command value is checked. If the system is in a state that causes a rapid change in the voltage command value, the processing goes to step S2, and if not, the processing goes to step S3. In step S2, a DC/DC converter is prohibited from being driven in a single phase and the processing ends. In step S3, the DC/DC converter is permitted to be driven in a single phase and the processing ends.

摘要翻译： 提供了一种燃料电池系统，其可以改变DC / DC转换器中的有源相的数量，以便防止过电流流过系统中的一个点（例如，DC / DC转换器的电抗器）。 在步骤S1中，检查系统是否处于引起电压指令值的快速变化的状态。 如果系统处于使电压指令值急剧变化的状态，则处理进入步骤S2，否则，处理进入步骤S3。 在步骤S2中，禁止在单相中驱动DC / DC转换器，并且处理结束。 在步骤S3中，DC / DC转换器被允许以单相驱动，处理结束。

公开(公告)号：US08053124B2

公开(公告)日：2011-11-08

申请号：US12085640

申请日：2007-07-17

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M16/006 ,  B60L11/1887 ,  B60L11/1892 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04559 ,  H01M8/04604 ,  H01M8/04753 ,  H01M8/04776 ,  H01M8/0488 ,  H01M8/0491 ,  H01M8/0494 ,  H01M8/04947 ,  H01M8/04955 ,  Y02T90/34

摘要： In a mobile body, an intermittent operation to temporarily halt a cell operation is performed at a time when a request for power generation with respect to a fuel cell stack is less than a predetermined value, and recovery processing of a cell voltage is performed at a time when a cell voltage recovery processing executing condition is satisfied during the intermittent operation. When the mobile body is moving, a threshold voltage Vth1 is set as the cell voltage recovery processing executing condition. When the mobile body is stopped, a threshold voltage Vth2 is set as the cell voltage recovery processing executing condition. When the voltages are set so as to obtain a relation Vth1>Vth2, the cell voltage recovery processing can be limited during the stop of the mobile body.

摘要翻译： 在移动体中，在对燃料电池堆的发电请求小于规定值的时刻进行暂时停止电池动作的间歇动作，在电池电压的恢复处理 在间歇操作期间满足电池电压恢复处理执行条件的时间。 当移动体移动时，将阈值电压Vth1设定为电池电压恢复处理执行条件。 当移动体停止时，将阈值电压Vth2设定为电池电压恢复处理执行条件。 当电压被设置为获得关系Vth1> Vth2时，可以在移动体停止期间限制电池电压恢复处理。

公开(公告)号：US20100112390A1

公开(公告)日：2010-05-06

申请号：US12595738

申请日：2008-06-16

申请人： Kenji Umayahara ,  Atsushi Imai

发明人： Kenji Umayahara ,  Atsushi Imai

IPC分类号： H01M2/00

CPC分类号： H01M8/0432 ,  B60L1/003 ,  B60L1/02 ,  B60L11/1803 ,  B60L11/1885 ,  B60L11/1887 ,  B60L11/1892 ,  B60L11/1894 ,  B60L11/1898 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/36 ,  B60L2240/662 ,  B60L2240/80 ,  B60L2250/10 ,  B60L2250/16 ,  B60L2250/26 ,  B60L2260/44 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04302 ,  Y02E60/50 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7291 ,  Y02T90/16 ,  Y02T90/34

摘要： The progress of activation of a fuel cell is appropriately transmitted in accordance with the rise of the temperature of the fuel cell, and an estimated time till the completion of the activation is displayed with higher accuracy. To realize this, the current percentage of a fuel cell temperature is displayed on a gauge (G) which displays, as a starting point, the temperature of the fuel cell at the start of the activation and which displays, as an end point, the temperature of the fuel cell at the completion of the activation. The percentage of the temperature is displayed as the estimated time till the completion of the activation, whereby an adverse effect due to a low accuracy in the case of the estimation of the time is eliminated. When the fuel cell is activated for a failure check, the percentage of an actually elapsed time with respect to a time required to complete the failure check may be displayed on the gauge (G). After comparing the percentage of the actually elapsed time with respect to the time required to complete the failure check with the percentage of the temperature of the fuel cell, the smaller value is preferably displayed.

摘要翻译： 根据燃料电池的温度升高适当地传输燃料电池的启动进度，并且以更高的精度显示直到激活完成的估计时间。 为了实现这一点，燃料电池温度的当前百分比显示在以启动时开始显示燃料电池的温度作为起点的量规（G），并且作为终点显示燃料电池温度 在激活完成时燃料电池的温度。 温度的百分比显示为激活结束之前的预计时间，从而消除了在估计时间的情况下由于精度低的不利影响。 当燃料电池被激活以进行故障检查时，实际耗尽时间相对于完成故障检查所需时间的百分比可以显示在量规（G）上。 在将实际经过时间的百分比与完成故障检查所需的时间与燃料电池的温度百分比进行比较之后，优选地显示较小的值。

公开(公告)号：US20090169936A1

公开(公告)日：2009-07-02

申请号：US12085531

申请日：2006-12-05

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04097 ,  H01M8/04231 ,  H01M8/04328 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04619 ,  H01M8/04753 ,  H01M8/04992 ,  H01M2250/20 ,  Y02T90/32

摘要： The present invention relates to a fuel cell system including a fuel cell, a hydrogen gas piping system for supplying a hydrogen gas to the fuel cell, an injector which adjusts a gas state on an upstream side of the hydrogen gas piping system to supply the gas to a downstream side, and a control device which drives and controls the injector in a predetermined driving period, wherein a driving characteristic of the injector is learnt, and a driving parameter of the injector can be set based on a result of the learning. In the present invention, during an operation of the fuel cell, a supply pressure of the hydrogen gas can appropriately be changed in accordance with an operation state. In addition, even when the pressure is broadly varied, a satisfactory pressure response property can be secured regardless of fluctuations due to aging and individual difference of the injector.

摘要翻译： 本发明涉及一种燃料电池系统，包括燃料电池，用于向燃料电池供应氢气的氢气管道系统，调节氢气管道系统的上游侧的气体状态以供应气体的喷射器 以及控制装置，其在预定的驱动时段内驱动和控制喷射器，其中学习喷射器的驱动特性，并且可以基于学习的结果来设定喷射器的驱动参数。 在本发明中，在燃料电池的动作中，能够根据运转状态适当地变更氢气的供给压力。 此外，即使当压力大幅度变化时，可以确保令人满意的压力响应特性，而不管由于老化引起的波动和喷射器的个体差异。

公开(公告)号：US07438146B2

公开(公告)日：2008-10-21

申请号：US11253608

申请日：2005-10-20

申请人： Shuji Hirakata ,  Kenji Umayahara

发明人： Shuji Hirakata ,  Kenji Umayahara

IPC分类号： B60K6/32

CPC分类号： H01M8/04228 ,  H01M8/04007 ,  H01M8/04223 ,  Y02T90/34

摘要： When a request to stop an operation of a fuel cell system is issued, a control unit stops the operation of the fuel cell system and cuts off the electrical connection between the fuel cell and a drive motor by shutting OFF a power supply relay. Where a shift position signal indicating that the shift position SP is at the P or N position is received from a shift selector and the parking brake is set, the control unit determines whether a coolant temperature Tfc detected via coolant detection sensors is at or below 20° C. If it is determined that the detected coolant temperature Tfc is at or below 20° C., the control unit commences a temperature-maintenance operation process.

摘要翻译： 当发出停止燃料电池系统的操作的请求时，控制单元通过关闭电源继电器来停止燃料电池系统的操作并切断燃料电池与驱动电动机之间的电连接。 在从变速选择器接收到表示变速位置SP处在P或N位置的变速位置信号并且驻车制动器被设定的情况下，控制单元判断通过冷却剂检测传感器检测出的冷却剂温度Tfc是否为20度以下 ℃。如果确定检测到的冷却剂温度Tfc处于或低于20℃，则控制单元开始温度维持操作过程。

公开(公告)号：US08728677B2

公开(公告)日：2014-05-20

申请号：US12809310

申请日：2008-12-11

申请人： Michio Yoshida ,  Kenji Umayahara

发明人： Michio Yoshida ,  Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M8/04992 ,  H01M8/04089 ,  H01M8/04119 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04395 ,  H01M8/04664 ,  H01M2008/1095

摘要： Provided is a fuel cell system which can measure an air blow interval and consider an exceptional condition such as a high-potential-avoiding operation, thereby enabling an accurate judgment of degradation of an electrolyte. An actual air blow time interval is measured while estimating a theoretical air blow time interval when an increase of a hydrogen consumption amount corresponding to a cell voltage in the high-potential-avoiding operation according to an output current by using a relationship table which contains a record of a relationship between a hydrogen consumption amount consumed for maintaining the function of a fuel cell and the air supply time interval varying with the increase of the hydrogen consumption amount. The degradation of the electrolyte of the fuel cell is judged according to whether the measured actual air blow time interval is shorter than the theoretical air blow time interval corresponding to the hydrogen consumption amount.

摘要翻译： 提供一种燃料电池系统，其可以测量吹气间隔并考虑诸如高潜在回避操作的特殊条件，从而能够准确地判断电解质的劣化。 在通过使用包含a的关系表的根据输出电流来增加与高电位避免操作中的电池电压相对应的氢消耗量的理论吹气时间间隔时，测量实际吹气时间间隔 关于维持燃料电池的功能消耗的氢消耗量与随着氢消耗量的增加而变化的供气时间间隔之间的关系的记录。 根据测量的实际吹气时间间隔是否短于对应于氢消耗量的理论吹气时间间隔来判断燃料电池的电解质的劣化。