Fuel cell system
    1.
    发明授权
    Fuel cell system 有权
    燃料电池系统

    公开(公告)号:US08951685B2

    公开(公告)日:2015-02-10

    申请号:US12741782

    申请日:2008-10-17

    IPC分类号: H01M8/04 B60L11/18 H01M8/10

    摘要: An object of the present invention is to reduce the period of time required to stop a fuel cell system and to suppress freezing of a fuel cell. The fuel cell system includes a controller that controls operations of a fuel cell, and the controller operates the fuel cell in a dry condition according to a state quantity (e.g., impedance) of the fuel cell in operation. The controller can operate the fuel cell in a dry condition before a system stop command is issued. In addition, the controller can switch an operation of the fuel cell from a dry condition to a wet condition when a required output of the fuel cell or a vehicle speed of a vehicle equals or exceeds a predetermined value.

    摘要翻译: 本发明的目的在于减少停止燃料电池系统所需的时间并抑制燃料电池的冻结。 燃料电池系统包括控制燃料电池的操作的控制器,并且控制器根据操作中的燃料电池的状态量(例如阻抗)在干燥状态下操作燃料电池。 在发出系统停止命令之前,控制器可以在干燥状态下操作燃料电池。 此外,当燃料电池的所需输出或车辆的车辆速度等于或超过预定值时,控制器可以将燃料电池的操作从干燥状态切换到湿润状态。

    Pressure sensor device including a diaphragm and a stopper member having a curved surface facing the diaphragm
    2.
    发明授权
    Pressure sensor device including a diaphragm and a stopper member having a curved surface facing the diaphragm 有权
    压力传感器装置包括隔膜和具有面向隔膜的曲面的止挡件

    公开(公告)号:US07360431B2

    公开(公告)日:2008-04-22

    申请号:US10567999

    申请日:2004-08-20

    IPC分类号: G01L9/12

    摘要: The pressure sensor device has a laminated diaphragm (12) in which a strain resistance gauge is formed in a surface and a stopper member (13) including a concave portion forming a curved surface parallel to a surface formed by displacement of the diaphragm, the concave portion being disposed to face the diaphragm. Specifically, the concave portion of the stopper member is formed into a curved surface in which depth y at a distance x from the center of the diaphragm is expressed by a quartic function [y=pr4(1−x2/r2)2/64D] in relation to the operating pressure for protection against maximum pressure p when the diaphragm has a radius of r, a thickness of t, and a flexural rigidity of D.

    摘要翻译: 压力传感器装置具有层压隔膜(12),其中在表面形成有应变阻力计,以及止动构件(13),该阻挡构件(13)包括形成与由隔膜的位移形成的表面平行的弯曲表面的凹部, 被设置为面对隔膜的部分。 具体而言,止动构件的凹部形成为弯曲面,其中距离振动膜中心的距离x处的深度y由四次函数表示[y = 相对于用于防止最大压力p的操作压力,当隔膜具有半径为的最大压力p时,相对于最大压力p的操作压力相对于第二/第二/第二/ r,厚度t,弯曲刚度D.

    FUEL CELL RUNNING SYSTEM, AND VALVE-FREEZE PREVENTING METHOD IN THE FUEL CELL RUNNING SYSTEM
    3.
    发明申请
    FUEL CELL RUNNING SYSTEM, AND VALVE-FREEZE PREVENTING METHOD IN THE FUEL CELL RUNNING SYSTEM 有权
    燃料电池运行系统和燃料电池运行系统中的阀门预防方法

    公开(公告)号:US20100239928A1

    公开(公告)日:2010-09-23

    申请号:US12294519

    申请日:2007-04-04

    申请人: Naohisa Tsuchiya

    发明人: Naohisa Tsuchiya

    IPC分类号: H01M8/04

    摘要: A fuel cell operating system which can prevent freezing of a valve and a method of preventing fixation of the valve in the fuel cell operating system are provided. In steps of the process of preventing freezing of a valve in the present invention, first, supply of hydrogen, which is a fuel gas, is stopped. Power generation is continued in a fuel cell stack until the fuel gas which has already been supplied is consumed by the fuel cell reaction. It is constantly judged whether or not the power generation is stopped. When it is judged that the power generation is stopped, a function of a water discharge process module executes a process to open a bypass valve. When the bypass valve is opened, a large amount of pressurized air is supplied to a bypass flow path, and water present in the bypass flow path and water present in an exit-side flow path are forcibly pushed and discharged.

    摘要翻译: 提供了能够防止阀的冻结的燃料电池操作系统和防止阀在燃料电池操作系统中的固定的方法。 在本发明中防止阀门冻结的步骤中,首先停止供给作为燃料气体的氢气。 在燃料电池堆中继续发电,直到已经供应的燃料气体被燃料电池反应消耗。 不断判断发电是否停止。 当判断发电停止时,排水处理模块的功能执行打开旁通阀的处理。 当旁通阀打开时,大量的加压空气被供给到旁通流路,并且旁路流路中存在的水和出口侧流路中存在的水被强制地推出和排出。

    Pressure sensor device
    4.
    发明申请
    Pressure sensor device 有权
    压力传感器装置

    公开(公告)号:US20060272422A1

    公开(公告)日:2006-12-07

    申请号:US10567999

    申请日:2004-08-20

    IPC分类号: G01L9/12

    摘要: The pressure sensor device has a laminated diaphragm (12) in which a strain resistance gauge is formed in a surface and a stopper member (13) including a concave portion forming a curved surface parallel to a surface formed by displacement of the diaphragm, the concave portion being disposed to face the diaphragm. Specifically, the concave portion of the stopper member is formed into a curved surface in which depth y at a distance x from the center of the diaphragm is expressed by a quartic function [y=pr4(1−x2/r2)2/64D] in relation to the operating pressure for protection against maximum pressure p when the diaphragm has a radius of r, a thickness of t, and a flexural rigidity of D.

    摘要翻译: 压力传感器装置具有层压隔膜(12),其中在表面形成有应变阻力计,以及止动构件(13),该阻挡构件(13)包括形成与由隔膜的位移形成的表面平行的弯曲表面的凹部, 被设置为面对隔膜的部分。 具体而言,止动构件的凹部形成为弯曲面,其中距离振动膜中心的距离x处的深度y由四次函数表示[y = 相对于用于防止最大压力p的操作压力,当隔膜具有半径为的最大压力p时,相对于最大压力p的操作压力相对于第二/第二/第二/ r,厚度t,弯曲刚度D.

    Fuel cell operation system and valve open amount calculation method in the fuel cell operation system
    5.
    发明授权
    Fuel cell operation system and valve open amount calculation method in the fuel cell operation system 有权
    燃料电池操作系统和燃油电池运行系统中的阀门开启量计算方法

    公开(公告)号:US08323844B2

    公开(公告)日:2012-12-04

    申请号:US12084906

    申请日:2007-04-04

    IPC分类号: H01M8/04

    摘要: FC current control in a fuel cell operation system can be roughly divided into two parts. The first part executes a total air feed amount calculation step, an FC air amount calculation step, and a bypass air amount calculation step. These steps are executed by using a stoichiometry map and a pumping hydrogen amount map. The second part calculates a control valve open amount instruction value and a bypass valve open amount instruction value according to the calculated FC air amount and the bypass air amount. Here, a control valve open amount map and the like are used. When generated power is output from the fuel cell stack by these instruction values, the actual FC current value is compared to the FC current instruction value and the control valve open amount is corrected according to a difference between them.

    摘要翻译: 燃料电池操作系统中的FC电流控制可以大致分为两部分。 第一部分执行总空气供给量计算步骤,FC空气量计算步骤和旁路空气量计算步骤。 这些步骤通过使用化学计量图和泵送氢量图来执行。 第二部分根据计算的FC空气量和旁路空气量计算控制阀打开量指令值和旁通阀打开量指令值。 这里,使用控制阀打开量图等。 当通过这些指令值从燃料电池堆输出发电电力时,将实际FC电流值与FC电流指令值进行比较,并根据它们之间的差异校正控制阀打开量。

    Fuel cell running system, and valve-freeze preventing method in the fuel cell running system
    6.
    发明授权
    Fuel cell running system, and valve-freeze preventing method in the fuel cell running system 有权
    燃料电池运行系统和燃料电池运行系统中的阀门防冻方法

    公开(公告)号:US08057943B2

    公开(公告)日:2011-11-15

    申请号:US12294519

    申请日:2007-04-04

    申请人: Naohisa Tsuchiya

    发明人: Naohisa Tsuchiya

    IPC分类号: H01M8/04

    摘要: A fuel cell operating system which can prevent freezing of a valve and a method of preventing fixation of the valve in the fuel cell operating system are provided. In steps of the process of preventing freezing of a valve in the present invention, first, supply of hydrogen, which is a fuel gas, is stopped. Power generation is continued in a fuel cell stack until the fuel gas which has already been supplied is consumed by the fuel cell reaction. It is constantly judged whether or not the power generation is stopped. When it is judged that the power generation is stopped, a function of a water discharge process module executes a process to open a bypass valve. When the bypass valve is opened, a large amount of pressurized air is supplied to a bypass flow path, and water present in the bypass flow path and water present in an exit-side flow path are forcibly pushed and discharged.

    摘要翻译: 提供了能够防止阀的冻结的燃料电池操作系统和防止阀在燃料电池操作系统中的固定的方法。 在本发明中防止阀门冻结的步骤中,首先停止供给作为燃料气体的氢气。 在燃料电池堆中继续发电,直到已经供应的燃料气体被燃料电池反应消耗。 不断判断发电是否停止。 当判断发电停止时,排水处理模块的功能执行打开旁通阀的处理。 当旁通阀打开时,大量的加压空气被供给到旁通流路,并且旁路流路中存在的水和出口侧流路中存在的水被强制地推出和排出。

    Fuel cell system
    8.
    发明授权
    Fuel cell system 有权
    燃料电池系统

    公开(公告)号:US09269974B2

    公开(公告)日:2016-02-23

    申请号:US13497908

    申请日:2009-09-25

    IPC分类号: H01M8/04

    摘要: A fuel cell system acquires an operation state of a fuel cell and estimates an IV characteristic that indicates a relationship between a current and a voltage in the fuel cell. At least one of a resistance overvoltage, an activation overvoltage, a current-voltage hysteresis and a concentration overvoltage of the fuel cell is determined from the operation state of the fuel cell, and the IV characteristic is estimated based on the determined result.

    摘要翻译: 燃料电池系统获取燃料电池的运行状态并且估计指示燃料电池中的电流和电压之间的关系的IV特性。 从燃料电池的运行状态确定电阻过电压,激活过电压,电流 - 电压滞后和燃料电池的集中过电压中的至少一个,并且基于所确定的结果来估计IV特性。

    FUEL CELL SYSTEM
    9.
    发明申请
    FUEL CELL SYSTEM 有权
    燃油电池系统

    公开(公告)号:US20120183873A1

    公开(公告)日:2012-07-19

    申请号:US13497908

    申请日:2009-09-25

    IPC分类号: H01M8/04

    摘要: A fuel cell system acquires an operation state of a fuel cell and estimates an IV characteristic that indicates a relationship between a current and a voltage in the fuel cell. At least one of a resistance overvoltage, an activation overvoltage, a current-voltage hysteresis and a concentration overvoltage of the fuel cell is determined from the operation state of the fuel cell, and the IV characteristic is estimated based on the determined result.

    摘要翻译: 燃料电池系统获取燃料电池的运行状态并且估计指示燃料电池中的电流和电压之间的关系的IV特性。 从燃料电池的运行状态确定电阻过电压,激活过电压,电流 - 电压滞后和燃料电池的集中过电压中的至少一个,并且基于所确定的结果来估计IV特性。