Coolant flow estimation by an electrical driven pump
    1.
    发明申请
    Coolant flow estimation by an electrical driven pump 审中-公开
    电动泵的冷却液流量估计

    公开(公告)号:US20070065690A1

    公开(公告)日:2007-03-22

    申请号:US11304185

    申请日:2005-12-15

    IPC分类号: H01M8/04 G01F1/00

    摘要: A thermal sub-system for a fuel cell system that uses pump characteristics to determine a required cooling fluid volume flow. An algorithm controls the speed of the pump to provide the desired volume flow of the cooling fluid for the system parameters. The algorithm determines a motor efficiency value based on a pump input power value and a pump speed value. The algorithm then determines a coefficient of power value based on the motor efficiency value, the pump input power value and the pump speed value. The algorithm then uses a look-up table to convert the coefficient of power value to a coefficient of flow value. The algorithm then calculates the volume flow based on the coefficient of flow value and the pump speed value.

    摘要翻译: 一种用于燃料电池系统的热子系统,其使用泵特性来确定所需的冷却流体体积流量。 算法控制泵的速度以提供用于系统参数的冷却流体的期望体积流量。 该算法基于泵输入功率值和泵速度值来确定电动机效率值。 然后,算法基于电机效率值,泵输入功率值和泵速值确定功率值系数。 然后,该算法使用查找表将功率值的系数转换为流量值。 然后,该算法基于流量系数和泵速度值计算体积流量。

    Feedforward control of the volume flow in a hydraulic system
    2.
    发明授权
    Feedforward control of the volume flow in a hydraulic system 有权
    液压系统中体积流量的前馈控制

    公开(公告)号:US08855945B2

    公开(公告)日:2014-10-07

    申请号:US11304347

    申请日:2005-12-15

    IPC分类号: F04D27/00 H01M8/04

    摘要: A thermal sub-system for a fuel cell system that employs an algorithm using feed-forward control. The algorithm calculates a Reynolds number based on the velocity of the cooling fluid, a diameter of a coolant loop pipe and a kinematic viscosity (temperature) of a cooling fluid. The algorithm also uses a pressure loss number based on the Reynolds number and a position of a by-pass valve. The algorithm also defines a pressure loss value based on the pressure loss number, the density of the cooling fluid and the velocity of the cooling fluid. The algorithm then calculates a delivery head value based on the pressure loss value, the fluid density and a gravitational acceleration. The algorithm then uses the delivery head value and a predetermined set-point value of the volume flow to determine a desired pump speed based on the current operating parameters of the system.

    摘要翻译: 一种使用前馈控制的算法的燃料电池系统的热子系统。 该算法基于冷却流体的速度,冷却剂回路管的直径和冷却流体的运动粘度(温度)来计算雷诺数。 该算法还使用基于雷诺数的压力损失数和旁路阀的位置。 该算法还基于压力损失数,冷却流体的密度和冷却流体的速度来定义压力损失值。 然后,该算法基于压力损失值,流体密度和重力加速度来计算输送头值。 然后,算法使用传送头值和体积流的预定设定值来基于系统的当前操作参数来确定期望的泵速度。

    REDUNDANT ADAPTIVE ALGORITHM FOR ELECTRICAL PRESSURE REGULATED HIGH PRESSURE TANK SYSTEMS
    3.
    发明申请
    REDUNDANT ADAPTIVE ALGORITHM FOR ELECTRICAL PRESSURE REGULATED HIGH PRESSURE TANK SYSTEMS 有权
    用于电压调节高压罐系统的冗余自适应算法

    公开(公告)号:US20130000742A1

    公开(公告)日:2013-01-03

    申请号:US13171064

    申请日:2011-06-28

    IPC分类号: F15D1/00 F17C1/00

    摘要: A method and system for controlling a pressure regulator in a gas storage system using a pressure switch as a pressure measurement device. A controller uses supply pressure data and gas flow demand data to compute a feed-forward control term, and uses data from a pressure sensor downstream of the pressure regulator to compute a feedback control term. During normal operation, with pressure downstream of the regulator oscillating about a set point pressure, on-time and off-time periods of a pressure switch are monitored, and an adaptive control term is computed which balances on-time and off-time. If the pressure sensor fails, excessive switch on-time or off-time will be detected; in response to this, the feedback control term is disregarded, and an adaptive control term is computed which aims to restore balanced on-time and off-time of the switch, thus indicating that the actual pressure is oscillating about the set point.

    摘要翻译: 一种使用压力开关作为压力测量装置来控制气体存储系统中的压力调节器的方法和系统。 控制器使用供应压力数据和气体流量需求数据来计算前馈控制项,并且使用压力调节器下游的压力传感器的数据来计算反馈控制项。 在正常运行期间,随着压力下游的压力围绕设定点压力的振荡,压力开关的导通时间和关闭时间被监控,并且计算出一个自适应控制项,其平衡导通时间和关断时间。 如果压力传感器出现故障,将检测到过大的开机导通时间或关闭时间; 响应于此,忽略反馈控制项,并且计算出旨在恢复开关的平衡导通时间和关断时间的自适应控制项,从而指示实际压力围绕设定点振荡。

    Feedforward control of the volume flow in a hydraulic system
    4.
    发明申请
    Feedforward control of the volume flow in a hydraulic system 有权
    液压系统中体积流量的前馈控制

    公开(公告)号:US20070065691A1

    公开(公告)日:2007-03-22

    申请号:US11304347

    申请日:2005-12-15

    IPC分类号: H01M8/04 G01F1/00 G01F7/00

    摘要: A thermal sub-system for a fuel cell system that employs an algorithm using feed-forward control. The algorithm calculates a Reynolds number based on the velocity of the cooling fluid, a diameter of a coolant loop pipe and a kinematic viscosity (temperature) of a cooling fluid. The algorithm also uses a pressure loss number based on the Reynolds number and a position of a by-pass valve. The algorithm also defines a pressure loss value based on the pressure loss number, the density of the cooling fluid and the velocity of the cooling fluid. The algorithm then calculates a delivery head value based on the pressure loss value, the fluid density and a gravitational acceleration. The algorithm then uses the delivery head value and a predetermined set-point value of the volume flow to determine a desired pump speed based on the current operating parameters of the system.

    摘要翻译: 一种使用前馈控制的算法的燃料电池系统的热子系统。 该算法基于冷却流体的速度,冷却剂回路管的直径和冷却流体的运动粘度(温度)来计算雷诺数。 该算法还使用基于雷诺数的压力损失数和旁路阀的位置。 该算法还基于压力损失数,冷却流体的密度和冷却流体的速度来定义压力损失值。 然后,该算法基于压力损失值,流体密度和重力加速度来计算输送头值。 然后,算法使用传送头值和体积流的预定设定值来基于系统的当前操作参数来确定期望的泵速度。

    Redundant adaptive algorithm for electrical pressure regulated high pressure tank systems
    5.
    发明授权
    Redundant adaptive algorithm for electrical pressure regulated high pressure tank systems 有权
    用于电压调节高压罐系统的冗余自适应算法

    公开(公告)号:US08831792B2

    公开(公告)日:2014-09-09

    申请号:US13171064

    申请日:2011-06-28

    IPC分类号: G05D16/00 G05D16/20 H01M8/04

    摘要: A method and system for controlling a pressure regulator in a gas storage system using a pressure switch as a pressure measurement device. A controller uses supply pressure data and gas flow demand data to compute a feed-forward control term, and uses data from a pressure sensor downstream of the pressure regulator to compute a feedback control term. During normal operation, with pressure downstream of the regulator oscillating about a set point pressure, on-time and off-time periods of a pressure switch are monitored, and an adaptive control term is computed which balances on-time and off-time. If the pressure sensor fails, excessive switch on-time or off-time will be detected; in response to this, the feedback control term is disregarded, and an adaptive control term is computed which aims to restore balanced on-time and off-time of the switch, thus indicating that the actual pressure is oscillating about the set point.

    摘要翻译: 一种使用压力开关作为压力测量装置来控制气体存储系统中的压力调节器的方法和系统。 控制器使用供应压力数据和气体流量需求数据来计算前馈控制项,并且使用压力调节器下游的压力传感器的数据来计算反馈控制项。 在正常运行期间,随着压力下游的压力围绕设定点压力的振荡,压力开关的导通时间和关闭时间被监控,并且计算出一个自适应控制项,其平衡导通时间和关断时间。 如果压力传感器出现故障,将检测到过大的开机导通时间或关闭时间; 响应于此,忽略反馈控制项,并且计算出旨在恢复开关的平衡导通时间和关断时间的自适应控制项,从而指示实际压力围绕设定点振荡。

    Coolant flow estimation for the thermal loop of a fuel cell system using stack loss power
    6.
    发明申请
    Coolant flow estimation for the thermal loop of a fuel cell system using stack loss power 审中-公开
    使用堆垛损耗功率的燃料电池系统的热回路的冷却剂流量估计

    公开(公告)号:US20070065695A1

    公开(公告)日:2007-03-22

    申请号:US11304349

    申请日:2005-12-15

    IPC分类号: H01M8/04

    摘要: A thermal sub-system for a fuel cell system that calculates a desired volume flow or mass flow of a cooling fluid pumped through a fuel cell stack solely on thermal stack power loss and cooling fluid temperature. An algorithm calculates a power loss of the stack and then calculates the temperature of the stack based on the power loss and dissipated heat power from the stack. The algorithm uses the temperature of the stack and the temperature of the cooling fluid out of the stack to determine the dissipated heat power. The algorithm then uses the temperature of the stack, the temperature of the cooling fluid into the stack and the temperature of the cooling fluid out of the stack to determine the flow.

    摘要翻译: 一种用于燃料电池系统的热子系统,其仅基于热堆叠功率损耗和冷却流体温度计算通过燃料电池堆泵送的冷却流体的期望体积流量或质量流量。 一种算法计算堆栈的功率损耗,然后根据堆叠的功率损耗和散热功率来计算堆叠的温度。 该算法使用堆叠的温度和冷却液的温度从堆叠中确定耗散的热功率。 然后,该算法使用堆叠的温度,冷却流体进入堆叠的温度和冷却流体从堆叠的温度来确定流量。

    Diagnosis concept for valve controlled coolant bypass paths
    8.
    发明授权
    Diagnosis concept for valve controlled coolant bypass paths 有权
    阀门控制冷却剂旁通路径的诊断概念

    公开(公告)号:US08402820B2

    公开(公告)日:2013-03-26

    申请号:US12728816

    申请日:2010-03-22

    申请人: Oliver Maier

    发明人: Oliver Maier

    IPC分类号: G01M17/00

    摘要: A system and method for determining whether a shut-off valve in a cabin heating by-pass line of a thermal sub-system associated with an engine has failed that uses the pump current for a pump that pumps the cooling fluid through the by-pass line. The method includes setting a predetermined constant speed of the pump and then providing a valve command that opens the by-pass valve. The method then determines if the pump current has increased or remained substantially the same when the by-pass valve is commanded open, and determines that the by-pass valve has not opened if the pump current remains substantially constant when the by-pass valve is commanded open.

    摘要翻译: 一种用于确定与发动机相关联的热子系统的客舱加热旁路线中的截止阀是否失败的系统和方法,其将泵电流用于通过旁路泵送冷却流体的泵 线。 该方法包括设定泵的预定的恒定速度,然后提供打开旁通阀的阀门命令。 然后该方法确定当旁路阀被命令打开时泵电流是否增加或保持基本相同,并确定当旁通阀为旁路阀时泵浦电流保持基本恒定时旁路阀未打开 命令开放

    ARCHITECTURE OF AN OPTICAL REFUELING COMMUNICATION USING GLASS FIBER
    9.
    发明申请
    ARCHITECTURE OF AN OPTICAL REFUELING COMMUNICATION USING GLASS FIBER 有权
    使用玻璃纤维进行光学修复通信的结构

    公开(公告)号:US20120148263A1

    公开(公告)日:2012-06-14

    申请号:US12967554

    申请日:2010-12-14

    申请人: Oliver Maier

    发明人: Oliver Maier

    IPC分类号: H04B10/12

    摘要: A communication interface for communication between a storage tank and a refueling station is described. One embodiment of the communication interface includes a control unit; an optical transmitter comprising an IR-LED, the optical transmitter directly integrated into the control unit or mounted on the control unit; and an optical frontend optically connected to the optical transmitter.

    摘要翻译: 描述用于存储箱和加油站之间的通信的通信接口。 通信接口的一个实施例包括控制单元; 一个光发射机,包括一个IR-LED,该光发射机直接集成到该控制单元中或安装在该控制单元上; 以及光学前端,其光学连接到光发射器。

    Angle sensor
    10.
    发明授权
    Angle sensor 有权
    角度传感器

    公开(公告)号:US07765702B2

    公开(公告)日:2010-08-03

    申请号:US12240063

    申请日:2008-09-29

    IPC分类号: G01B7/00

    CPC分类号: G01D5/04 B62D15/0215

    摘要: An angle sensor includes two measuring pinions which rotate in the same direction in response to a drive pinion rotating. The measuring pinions have different absolute angular positions after rotating. The absolute angular position of the drive pinion is determinable from the absolute angular positions of the measuring pinions. A delta wheel between the measuring pinions has two coaxially arranged rings. One ring engages the second measuring pinion and the other ring engages the first measuring pinion such that the rings rotate relative to one another in the same direction in response to the measuring pinions rotating in the opposite direction. A spring connecting the rings together biases the rings to move in opposite directions toward one another after the rings have been rotated relative to one another in the same direction such that the rings respectively press the measuring pinions against the drive pinion.

    摘要翻译: 角度传感器包括响应于驱动小齿轮旋转沿相同方向旋转的两个测量小齿轮。 测量小齿轮在旋转后具有不同的绝对角位置。 驱动小齿轮的绝对角度位置可以从测量小齿轮的绝对角度位置确定。 测量小齿轮之间的三角轮具有两个同轴布置的环。 一个环接合第二测量小齿轮,而另一个环接合第一测量小齿轮,使得响应于沿相反方向旋转的测量小齿轮,环在相同方向上相对于彼此旋转。 连接环在一起的弹簧偏置环,在环已经沿相同方向相对于彼此旋转之后,彼此相反的方向移动,使得环分别将测量小齿轮压靠在驱动小齿轮上。