METHOD FOR HIGH VOLTAGE BUS CONTROL IN FUEL CELL VEHICLES
    1.
    发明申请
    METHOD FOR HIGH VOLTAGE BUS CONTROL IN FUEL CELL VEHICLES 有权
    燃料电池车辆高压总线控制方法

    公开(公告)号:US20120025619A1

    公开(公告)日:2012-02-02

    申请号:US12844648

    申请日:2010-07-27

    IPC分类号: H02J4/00 H01M8/04

    摘要: A system and method for controlling the voltage on a high voltage bus in a fuel cell system in response to a failed high voltage battery. The method includes determining if the high voltage battery has failed, and disconnecting the battery from the high voltage bus in response to a failure. The method measures the voltage of the fuel cell stack by a DC boost circuit and converts the measured voltage to a voltage set-point value that sets the voltage on the high voltage bus, where the voltage set-point value changes as the measured voltage changes. A supervisory controller sets the media flow to the fuel cell stack and determines a minimum stack voltage limit value based on the stack maximum current draw that is used to determine a high voltage bus lower limit value.

    摘要翻译: 一种用于响应于故障的高电压电池来控制燃料电池系统中的高压总线上的电压的系统和方法。 该方法包括确定高压电池是否发生故障,以及响应于故障将电池与高电压总线断开连接。 该方法通过直流升压电路测量燃料电池堆的电压,并将测得的电压转换成设定高压母线上的电压的电压设定点值,其中电压设定值随着测量电压的变化而变化 。 监控控制器将介质流量设置到燃料电池堆,并且基于用于确定高压母线下限值的堆叠最大电流消耗来确定最小堆叠电压限制值。

    METHOD FOR REVISING A POLARIZATION CURVE THAT DEFINES THE CURRENT/VOLTAGE RELATIONSHIP OF A FUEL CELL STACK
    2.
    发明申请
    METHOD FOR REVISING A POLARIZATION CURVE THAT DEFINES THE CURRENT/VOLTAGE RELATIONSHIP OF A FUEL CELL STACK 有权
    修正燃料电池堆的电流/电压关系的极化曲线的修正方法

    公开(公告)号:US20100092817A1

    公开(公告)日:2010-04-15

    申请号:US12637501

    申请日:2009-12-14

    IPC分类号: H01M8/04

    摘要: A method for revising a reference polarization curve of a fuel cell stack that identifies the relationship between the voltage and the current of the stack over time. When the stack is operating at a low load where kinetic voltage losses of the stack dominate, a first adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve. When the stack is operating at higher loads where ohmic voltage losses of the stack dominate, a second adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve.

    摘要翻译: 一种用于修改燃料电池堆的参考极化曲线的方法,其识别堆叠随时间的电压和电流之间的关系。 当堆栈以堆叠的动态电压损失为主的低负载运行时,第一适配值被修改为实际堆叠电压与参考极化曲线的堆叠电压之间的差值。 当堆栈工作在堆叠的欧姆电压损耗主导的较高负载时,第二适配值被修改为实际堆叠电压和参考极化曲线的堆叠电压之间的差。

    APPARATUS FOR OPTIMIZED EXECUTION OF HEATING TASKS IN FUEL CELL VEHICLES
    3.
    发明申请
    APPARATUS FOR OPTIMIZED EXECUTION OF HEATING TASKS IN FUEL CELL VEHICLES 有权
    用于燃料电池车辆加热任务优化执行的装置

    公开(公告)号:US20090236436A1

    公开(公告)日:2009-09-24

    申请号:US12053979

    申请日:2008-03-24

    IPC分类号: B60H1/06 H01M8/04 F28D15/00

    摘要: A heating system for optimizing execution of heating tasks in a fuel cell vehicle is disclosed, the system including a stack coolant loop with a fuel cell stack, a primary pump, and a radiator module. A bypass coolant loop is disposed parallel with and is connected to the stack coolant loop between the fuel cell stack and the radiator module. The bypass loop including a cabin heat exchanger and a coolant heater, along with a secondary pump for pumping coolant through the heaters when desired.

    摘要翻译: 公开了一种用于优化燃料电池车辆中的加热任务执行的加热系统,该系统包括具有燃料电池堆,主泵和散热器模块的堆叠冷却剂回路。 旁路冷却剂回路与燃料电池堆和散热器模块之间的堆叠冷却剂回路平行并连接。 旁路回路包括机舱热交换器和冷却剂加热器,以及用于在需要时将冷却剂泵送通过加热器的次级泵。

    METHOD FOR MODEL BASED EXHAUST MIXING CONTROL IN A FUEL CELL APPLICATION
    4.
    发明申请
    METHOD FOR MODEL BASED EXHAUST MIXING CONTROL IN A FUEL CELL APPLICATION 有权
    燃料电池应用中基于模型的排气混合控制方法

    公开(公告)号:US20090117417A1

    公开(公告)日:2009-05-07

    申请号:US11936642

    申请日:2007-11-07

    IPC分类号: H01M8/04

    摘要: A system and method for controlling a bleed valve and a compressor in a fuel cell system during an anode exhaust gas bleed so as to maintain the concentration of hydrogen within a mixed cathode exhaust gas and anode gas below a predetermined percentage. The system uses a valve orifice model to calculate the flow rate of the anode exhaust gas through the bleed valve to identify how much airflow from the compressor is required to dilute the hydrogen in the anode gas to be below the predetermined percentage. The system also uses sensor inaccuracies and production tolerances in the valve orifice model to ensure that the concentration of hydrogen in the mixed anode and cathode exhaust gas is below the determined percentage.

    摘要翻译: 一种用于在阳极废气排放期间控制燃料电池系统中的排放阀和压缩机的系统和方法,以将混合阴极排气和阳极气体内的氢浓度保持在预定百分比以下。 该系统使用阀孔模型来计算通过排放阀的阳极废气的流量,以确定需要多少气流从压缩机中稀释,使阳极气体中的氢低于预定百分比。 该系统还使用阀孔模型中的传感器不准确度和生产公差,以确保混合阳极和阴极废气中的氢浓度低于确定的百分比。

    Method for adaptive prediction of stack voltage in automotive fuel cell systems
    7.
    发明授权
    Method for adaptive prediction of stack voltage in automotive fuel cell systems 有权
    汽车燃料电池系统堆叠电压自适应预测方法

    公开(公告)号:US07682719B2

    公开(公告)日:2010-03-23

    申请号:US11534341

    申请日:2006-09-22

    IPC分类号: H01M8/04 H01M8/12

    摘要: A method for revising a reference polarization curve of a fuel cell stack that identifies the relationship between the voltage and the current of the stack over time. When the stack is operating at a low load where kinetic voltage losses of the stack dominate, a first adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve. When the stack is operating at higher loads where ohmic voltage losses of the stack dominate, a second adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve.

    摘要翻译: 一种用于修改燃料电池堆的参考极化曲线的方法,其识别堆叠随时间的电压和电流之间的关系。 当堆栈以堆叠的动态电压损失为主的低负载运行时,第一适配值被修改为实际堆叠电压与参考极化曲线的堆叠电压之间的差值。 当堆栈工作在堆叠的欧姆电压损耗主导的较高负载时,第二适配值被修改为实际堆叠电压和参考极化曲线的堆叠电压之间的差。

    CONTROL OF NITROGEN FRACTION IN A FLOW SHIFTING FUEL CELL SYSTEM
    8.
    发明申请
    CONTROL OF NITROGEN FRACTION IN A FLOW SHIFTING FUEL CELL SYSTEM 有权
    控制流动转换燃料电池系统中的氮分解

    公开(公告)号:US20080145715A1

    公开(公告)日:2008-06-19

    申请号:US11612108

    申请日:2006-12-18

    IPC分类号: H01M8/04

    摘要: A device and method to predict and regulate nitrogen concentration in a flow shifting system. In one aspect of the system, a bleed valve fluidly coupled to multiple fuel cell stacks is used to reduce the presence of nitrogen in an anode flowpath. One or more sensors can be used to measure voltage within one or both of the fuel cell stacks. By assessing fuel cell voltage changes within the anode flowpath and equating such changes with nitrogen fraction buildup, the system can manipulate the bleed valve at appropriate times to improve system operability. In one form of equating the sensed voltage changes with the nitrogen fraction buildup, a predictive algorithm can be used by a logic device in a controller to compare the sensed voltage so that the controller instructs the bleed valve when to open and close. In a variation, the controller can compare the sensed voltages against stored data rather than rely on a formula or related algorithm.

    摘要翻译: 一种用于预测和调节流动系统中氮浓度的装置和方法。 在该系统的一个方面,使用流体耦合到多个燃料电池堆的泄放阀来减少阳极流路中氮的存在。 一个或多个传感器可用于测量一个或两个燃料电池堆内的电压。 通过评估阳极流路内的燃料电池电压变化并将这些变化与氮气分数积分相等,系统可以在适当的时间操纵排放阀,以提高系统的可操作性。 在将感测的电压变化与氮分数积分相等的一种形式中,控制器中的逻辑器件可以使用预测算法来比较感测的电压,使得控制器指令泄放阀何时打开和关闭。 在一个变化中,控制器可以将感测的电压与存储的数据进行比较,而不是依赖于公式或相关的算法。

    Laminar bypass for cascaded stack
    9.
    发明申请
    Laminar bypass for cascaded stack 有权
    级联叠层的层叠旁路

    公开(公告)号:US20070031720A1

    公开(公告)日:2007-02-08

    申请号:US11196539

    申请日:2005-08-03

    IPC分类号: H01M8/04

    摘要: A fuel cell stack that includes cascaded stack stages and tube bundle flow restrictions for providing a cathode input gas to each stage in the stack. The stack includes a first flow pipe for providing cathode gas flow to a first stage of the plurality of stages of the fuel cell stack. The fuel cell stack also includes a second flow pipe that receives a cathode exhaust gas flow from the first stage and fresh cathode gas flow, where the cathode exhaust gas flow and the fresh cathode gas flow are combined and sent to a second stage of the plurality of stages of the fuel cell stack. The tube bundle flow restriction is positioned within the second flow pipe and controls the flow of the cathode gas flow to the second stage, where the flow restriction provides a laminar flow through the control valve to the second stage.

    摘要翻译: 一种燃料电池堆,其包括级联堆叠级和管束流限制,用于向堆叠中的每个级提供阴极输入气体。 堆叠包括用于向燃料电池堆的多级的第一级提供阴极气流的第一流管。 燃料电池堆还包括第二流管,其接收来自第一级的阴极排气流和新鲜阴极气流,其中阴极排气流和新鲜阴极气流合并并发送到多个第二级 的燃料电池堆的阶段。 管束流动限制器位于第二流管内并且控制阴极气体流到第二阶段的流动,其中流动限制提供通过控制阀到第二阶段的层流。

    APPARATUS FOR A 12V HYBRID FUEL CELL VEHICLE
    10.
    发明申请
    APPARATUS FOR A 12V HYBRID FUEL CELL VEHICLE 审中-公开
    12V混合燃料电池车的装置

    公开(公告)号:US20110262824A1

    公开(公告)日:2011-10-27

    申请号:US12766412

    申请日:2010-04-23

    IPC分类号: H01M8/24

    摘要: A fuel cell system that does not include a high voltage battery in combination with a fuel cell stack. The fuel cell stack and a bi-directional power module are electrically coupled to a high voltage bus. A first larger capacity 12 volt battery is electrically coupled to the power module opposite to the high voltage bus and a second smaller capacity 12 volt battery is electrically coupled to the first 12 volt battery, where a diode is electrically coupled between the first and second 12 volt batteries and only allows current flow from the first 12 volt battery to the second 12 volt battery. 12 volt battery loads are electrically coupled to the second 12 volt battery.

    摘要翻译: 一种燃料电池系统,其不包括与燃料电池堆组合的高压电池。 燃料电池堆和双向电力模块电耦合到高压母线。 第一个较大容量的12伏特电池电耦合到与高电压总线相对的功率模块,而第二个较小容量的12伏特电池与第一个12伏电池电耦合,二极管电耦合在第一个和第二个12 电池只允许电流从第一个12伏电池流向第二个12伏电池。 12伏电池负载电耦合到第二个12伏电池。