公开(公告)号：US08722265B2

公开(公告)日：2014-05-13

申请号：US12743896

申请日：2008-11-11

申请人： Kenji Umayahara ,  Michio Yoshida

发明人： Kenji Umayahara ,  Michio Yoshida

IPC分类号： H01M8/04

CPC分类号： H01M8/0488 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04626 ,  H01M16/006

摘要： A fuel cell system is provided which can extend the time during which a high-potential avoidance control is performed as much as possible, thereby reducing deterioration of a fuel cell. The fuel cell system includes: a fuel cell that generates electric power upon a supply of a reaction gas; a power storage device that is charged with at least a part of power generated by the fuel cell; and a controller that controls an output voltage of the fuel cell with, as an upper limit, a high-potential avoidance voltage lower than an open end voltage thereof. The controller variably sets the high-potential avoidance voltage in accordance with the amount of charge SOC of the power storage device.

摘要翻译： 提供了可以尽可能延长进行高潜在回避控制的时间的燃料电池系统，从而减少燃料电池的劣化。 燃料电池系统包括：燃料电池，其在供应反应气体时产生电力; 蓄电装置，其对由所述燃料电池产生的功率的至少一部分进行充电; 以及作为上限，控制燃料电池的输出电压的控制器，其高电位回避电压低于其开路端电压。 控制器根据蓄电装置的充电量SOC可变地设定高电位回避电压。

公开(公告)号：US08658324B2

公开(公告)日：2014-02-25

申请号：US13259811

申请日：2009-07-29

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： H01M8/04 ,  H02M5/42 ,  H02M7/68 ,  H02M3/24 ,  H02M7/44

CPC分类号： H01M8/04574 ,  H01M8/04873

摘要： A fuel cell system FCS includes a fuel cell FC, a motor ES4 connected to the fuel cell FC, an FC boost converter ES6 which raises the output voltage of the fuel cell FC to output the voltage to the motor ES4, an inverter ES3, a current sensor S2, and a controller EC which controls the fuel cell FC, the FC boost converter ES6 and the inverter ES3. The controller EC controls the inverter ES3 so as to raise the target output voltage of the inverter, when the current detected by the current sensor S2 exceeds a predetermined current threshold value.

摘要翻译： 燃料电池系统FCS包括燃料电池FC，连接到燃料电池FC的电动机ES4，升压燃料电池FC的输出电压以将电压输出到电动机ES4的FC升压转换器ES6，反相器ES3， 电流传感器S2和控制燃料电池FC，FC升压转换器ES6和反相器ES3的控制器EC。 当由电流传感器S2检​​测的电流超过预定的电流阈值时，控制器EC控制逆变器ES3，以提高逆变器的目标输出电压。

公开(公告)号：US08557464B2

公开(公告)日：2013-10-15

申请号：US12303915

申请日：2007-05-29

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M8/04328 ,  H01M8/04097 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04388 ,  H01M8/04447 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/04955 ,  H01M8/2457

摘要： In the present invention, after the initial setting of the FC entry target pressure, the FC entry target pressure is maintained at this initial-setting value until the concentration of impurities in the gas supplied to the anode in the fuel cell falls below a certain value. This initial-setting value is set to a pressure higher than the FC entry target pressure set in response to the FC electric current during normal power generation. If the concentration of impurities in the gas supplied to the anode in the fuel cell has fallen below the certain value, then the FC entry target pressure is sought using a map showing the relationship between the FC electric current detected in step S5 and the entry target pressure set in response to the output required for the fuel cell.

摘要翻译： 在本发明中，在FC输入目标压力的初始设定之后，FC输入目标压力保持在该初始设定值，直到供给到燃料电池的阳极的气体中的杂质浓度低于某一值 。 该初始设定值被设定为高于在正常发电期间响应于FC电流而设定的FC输入目标压力的压力。 如果燃料电池中供给到阳极的气体中的杂质浓度降低到特定值以下，则使用表示在步骤S5中检测出的FC电流与入口目标之间的关系的映射来寻求FC输入目标压力 响应于燃料电池所需的输出而设定的压力。

公开(公告)号：US08445153B2

公开(公告)日：2013-05-21

申请号：US12740745

申请日：2008-10-29

申请人： Michio Yoshida ,  Kenji Umayahara

发明人： Michio Yoshida ,  Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M16/006 ,  B60L11/1881 ,  B60L11/1887 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04619 ,  H01M8/0488 ,  H01M10/425 ,  H01M2250/20 ,  Y02T90/32 ,  Y02T90/34

摘要： A fuel cell system capable of providing a suitable power distribution is provided. A fuel cell system includes: a fuel cell that generates electric power through an electrochemical reaction between a fuel gas and an oxidant gas; a motor that can be driven upon the supply of electric power and can generate regenerative power; a power storage unit which can be charged with power generated from the fuel cell and regenerative power of the motor and can discharge charge power to the motor; an auxiliary apparatus used for operating at least the fuel cell; and a control unit that controls a power distribution between the above components. The control unit determines the power distribution using a power generation command value based on power required to be generated during a normal operation, while the control unit determines the power distribution using a power generation measured value of the fuel cell instead of the power generation command value during a high-potential prevention control that avoids a voltage of the fuel cell becoming equal to or higher than a predetermined high-potential prevention voltage threshold lower than an open circuit voltage of the fuel cell.

摘要翻译： 提供能够提供合适的配电的燃料电池系统。 燃料电池系统包括：燃料电池，其通过燃料气体和氧化剂气体之间的电化学反应产生电力; 可以在供电时驱动并产生再生电力的电动机; 能够从燃料电池产生的电力和电动机的再生电力充电的电力存储单元，并且可以向电动机放电充电电力; 用于至少操作燃料电池的辅助装置; 以及控制单元，其控制上述部件之间的功率分配。 控制单元使用基于在正常操作期间产生的功率的发电指令值来确定功率分配，而控制单元使用燃料电池的发电测量值而不是发电指令值来确定功率分配 在避免燃料电池的电压变得等于或高于低于燃料电池的开路电压的预定的高电位防止电压阈值的高电位防止控制中。

公开(公告)号：US08277993B2

公开(公告)日：2012-10-02

申请号：US12740605

申请日：2008-09-04

申请人： Michio Yoshida ,  Kenji Umayahara

发明人： Michio Yoshida ,  Kenji Umayahara

IPC分类号： H01M8/04 ,  H01M8/06

CPC分类号： H01M8/0438 ,  H01M8/04186 ,  H01M8/04559 ,  H01M8/04753 ,  H01M8/04761 ,  H01M16/006 ,  H01M2250/20 ,  Y02T90/32

摘要： A fuel cell system is provided which can accurately detect an insulation resistance even during a high-potential prevention control. The fuel cell system includes: a fuel cell that generates electric power through an electrochemical reaction between a fuel gas and an oxidant gas; an insulation resistance measurement unit that measures an insulation resistance between the fuel cell and an outer conductor; and a control unit that controls a power generation state of the fuel cell, and the control unit carries out a high-potential prevention control that avoids a voltage of the fuel cell becoming equal to or higher than a predetermined high-potential prevention voltage threshold lower than an open circuit voltage of the fuel cell, and changes the high-potential prevention voltage threshold during an insulation resistance detection performed by the insulation resistance measurement unit.

摘要翻译： 提供了即使在高电位防止控制期间也可以精确地检测绝缘电阻的燃料电池系统。 燃料电池系统包括：燃料电池，其通过燃料气体和氧化剂气体之间的电化学反应产生电力; 绝缘电阻测量单元，其测量所述燃料电池和外部导体之间的绝缘电阻; 以及控制单元，其控制燃料电池的发电状态，并且控制单元执行避免燃料电池的电压变得等于或高于预定的高电位防止电压阈值以下的高电位防止控制 比燃料电池的开路电压高，并且在由绝缘电阻测量单元执行的绝缘电阻检测期间改变高电位防止电压阈值。

公开(公告)号：US20120146421A1

公开(公告)日：2012-06-14

申请号：US13390777

申请日：2009-08-17

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： H02J1/00

CPC分类号： H01M8/04626 ,  H01M8/04365 ,  H01M8/04559 ,  H01M8/04619 ,  H01M8/0494 ,  H01M10/425 ,  H01M16/006 ,  Y10T307/696

摘要： An output of a fuel cell is appropriately controlled. A required electric power generation amount calculation unit calculates and adds: an amount of electric power to be supplied to a traction motor; an amount of electric power to be supplied to an auxiliary apparatus; and an amount of electric power to be supplied to a battery and the traction motor in accordance with the charging and discharging of the battery, to calculate a required electric power generation amount. A lost electric power amount calculation unit calculates a lost electric power amount with reference to a lost electric power amount map based on: the required electric power generation amount; and a voltage increase ratio, output voltage and temperature in an FC converter. A lost electric power amount addition unit corrects the required electric power generation amount by adding the lost electric power amount to the required electric power generation amount. An electric power generation request unit outputs an instruction requesting power generation such that the electric power is generated in the required electric power generation amount after being corrected.

摘要翻译： 适当地控制燃料电池的输出。 所需发电量计算单元计算并添加：供给到牵引电动机的电力量; 要供应给辅助设备的电力量; 以及根据电池的充电和放电向电池和牵引电动机供给的电力量，以计算所需的发电量。 损失电力量计算单元基于所需发电量，参照损耗电力量图来计算损耗电力量; 以及FC转换器中的升压比，输出电压和温度。 损失的电力增加单元通过将损失的电力量与所需的发电量相加来校正所需的发电量。 发电请求单元输出要求发电的指令，使得在校正后以所需发电量产生电力。

公开(公告)号：US20120107709A1

公开(公告)日：2012-05-03

申请号：US13382791

申请日：2009-07-09

申请人： Hiroaki Mori ,  Kenji Umayahara

发明人： Hiroaki Mori ,  Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M8/04567 ,  B60L11/1887 ,  B60L11/1892 ,  H01M8/04559 ,  H01M8/04753 ,  H01M8/04888 ,  H01M2250/20 ,  Y02T90/32 ,  Y02T90/34

摘要： A fuel cell system including a fuel cell, and a converter which is connected between the fuel cell and a high voltage system and which sets an output ceiling voltage of the fuel cell, the fuel cell system comprising fuel gas supply stopping means for stopping the supply of fuel gas to the fuel cell in an intermittent operation mode, remaining fuel gas amount determination means for determining whether fuel gas in at least an amount capable of generating power remains in the fuel cell, converter driving means for driving the converter so that, when it is determined that fuel gas in at least the amount capable of generating power remains in the fuel cell, the output ceiling voltage of the fuel cell becomes a first voltage capable of preventing deterioration of the fuel cell, and converter stopping means for stopping the converter when it is determined that fuel gas in at least the amount capable of generating power does not remain in the fuel cell.

摘要翻译： 一种燃料电池系统，包括燃料电池和连接在所述燃料电池和高压系统之间并且设定所述燃料电池的输出上限电压的转换器，所述燃料电池系统包括用于停止供给的燃料气体供给停止装置 燃料气体以间歇运转模式运送到燃料电池;剩余燃料气量判定装置，用于确定燃料电池中是否具有至少能够发电的量的燃料气体;用于驱动转换器的转换器驱动装置， 确定至少能够发电的量的燃料气体保留在燃料电池中，燃料电池的输出上限电压变为能够防止燃料电池劣化的第一电压，以及用于停止转换器的转换器停止装置 当确定至少能够发电的量的燃料气体不残留在燃料电池中时。

公开(公告)号：US20120020128A1

公开(公告)日：2012-01-26

申请号：US13259811

申请日：2009-07-29

申请人： Kenji Umayahara

发明人： Kenji Umayahara

IPC分类号： H02M7/44

CPC分类号： H01M8/04574 ,  H01M8/04873

摘要： A fuel cell system FCS includes a fuel cell FC, a motor ES4 connected to the fuel cell FC, an FC boost converter ES6 which raises the output voltage of the fuel cell FC to output the voltage to the motor ES4, an inverter ES3, a current sensor S2, and a controller EC which controls the fuel cell FC, the FC boost converter ES6 and the inverter ES3. The controller EC controls the inverter ES3 so as to raise the target output voltage of the inverter, when the current detected by the current sensor S2 exceeds a predetermined current threshold value.

摘要翻译： 燃料电池系统FCS包括燃料电池FC，连接到燃料电池FC的电动机ES4，升压燃料电池FC的输出电压以将电压输出到电动机ES4的FC升压转换器ES6，反相器ES3， 电流传感器S2和控制燃料电池FC，FC升压转换器ES6和反相器ES3的控制器EC。 当由电流传感器S2检​​测的电流超过预定的电流阈值时，控制器EC控制逆变器ES3，以提高逆变器的目标输出电压。

公开(公告)号：US20120015268A1

公开(公告)日：2012-01-19

申请号：US13258636

申请日：2010-03-18

申请人： Michio Yoshida ,  Kenji Umayahara ,  Atsushi Imai

发明人： Michio Yoshida ,  Kenji Umayahara ,  Atsushi Imai

IPC分类号： H01M8/04 ,  G01M3/28

CPC分类号： H01M8/04679 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04302 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04559 ,  H01M8/04567 ,  H01M8/04589 ,  H01M8/0488 ,  H01M8/04955 ,  H01M16/003 ,  H01M2250/20 ,  Y02T90/32

摘要： A fuel cell system that includes a fuel cell that generates electricity through an electrochemical reaction between a fuel gas and an oxidant gas, and a control portion that determines whether there is leakage of the fuel gas. The control portion has start means for starting the fuel cell by raising the voltage of the fuel cell from a starting voltage to an operation voltage that is lower than an open-circuit voltage, and leakage determination means for determining whether there is leakage of the fuel gas before the voltage of the fuel cell reaches the operation voltage when the fuel cell is started.

摘要翻译： 一种燃料电池系统，其包括通过燃料气体和氧化剂气体之间的电化学反应发电的燃料电池，以及确定燃料气体是否泄漏的控制部分。 控制部分具有启动装置，用于通过将燃料电池的电压从启动电压提高到低于开路电压的操作电压来启动燃料电池;以及泄漏确定装置，用于确定燃料是否泄漏 在燃料电池启动之前燃料电池的电压达到操作电压之前的气体。

公开(公告)号：US20100316921A1

公开(公告)日：2010-12-16

申请号：US12740745

申请日：2008-10-29

申请人： Michio Yoshida ,  Kenji Umayahara

发明人： Michio Yoshida ,  Kenji Umayahara

IPC分类号： H01M8/04

CPC分类号： H01M16/006 ,  B60L11/1881 ,  B60L11/1887 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04619 ,  H01M8/0488 ,  H01M10/425 ,  H01M2250/20 ,  Y02T90/32 ,  Y02T90/34

摘要： A fuel cell system capable of providing a suitable power distribution is provided. A fuel cell system includes: a fuel cell that generates electric power through an electrochemical reaction between a fuel gas and an oxidant gas; a motor that can be driven upon the supply of electric power and can generate regenerative power; a power storage unit which can be charged with power generated from the fuel cell and regenerative power of the motor and can discharge charge power to the motor; an auxiliary apparatus used for operating at least the fuel cell; and a control unit that controls a power distribution between the above components. The control unit determines the power distribution using a power generation command value based on power required to be generated during a normal operation, while the control unit determines the power distribution using a power generation measured value of the fuel cell instead of the power generation command value during a high-potential prevention control that avoids a voltage of the fuel cell becoming equal to or higher than a predetermined high-potential prevention voltage threshold lower than an open circuit voltage of the fuel cell.

摘要翻译： 提供能够提供合适的配电的燃料电池系统。 燃料电池系统包括：燃料电池，其通过燃料气体和氧化剂气体之间的电化学反应产生电力; 可以在供电时驱动并产生再生电力的电动机; 能够从燃料电池产生的电力和电动机的再生电力充电的电力存储单元，并且可以向电动机放电充电电力; 用于至少操作燃料电池的辅助装置; 以及控制单元，其控制上述部件之间的功率分配。 控制单元使用基于在正常操作期间产生的功率的发电指令值来确定功率分配，而控制单元使用燃料电池的发电测量值而不是发电指令值来确定功率分配 在避免燃料电池的电压变得等于或高于低于燃料电池的开路电压的预定的高电位防止电压阈值的高电位防止控制中。