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12 条记录 (耗时 0.048 秒)

    Feedback control of H2 injection during park based on gas concentration model
    7.
    发明授权
    Feedback control of H2 injection during park based on gas concentration model 有权
    基于气体浓度模型的公园H2注入反馈控制

    公开(公告)号：US08722263B2

    公开(公告)日：2014-05-13

    申请号：US12754279

    申请日：2010-04-05

    申请人： Jun Cai ,  Joseph Nicholas Lovria ,  Sriram Ganapathy ,  Jaehak Jung ,  John P. Salvador

    发明人： Jun Cai ,  Joseph Nicholas Lovria ,  Sriram Ganapathy ,  Jaehak Jung ,  John P. Salvador

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04992 ,  H01M8/04097 ,  H01M8/04104 ,  H01M8/04201 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04303 ,  H01M8/04447 ,  H01M8/04753 ,  H01M8/04798 ,  H01M2250/20 ,  Y02T90/32

    摘要： A method for determining when to inject hydrogen gas into the anode side of a fuel cell stack associated with a fuel cell vehicle when the vehicle is off. The method includes estimating the concentration of hydrogen gas in the anode side of the fuel cell stack using a gas concentration model and determining if the estimated concentration of hydrogen gas is below a first predetermined threshold. If the estimated hydrogen gas is less than the threshold, then hydrogen gas is injected into the anode side from a hydrogen source. While the hydrogen gas is being injected, the method compares the estimated concentration of the hydrogen gas in the anode side to a desired concentration, and generates an error signal there between. If the error signal is greater than a second predetermined threshold, the algorithm continues to inject the hydrogen into the anode side of the fuel cell stack.

    摘要翻译： 一种用于在车辆关闭时确定何时将氢气注入与燃料电池车辆相关联的燃料电池堆的阳极侧的方法。 该方法包括使用气体浓度模型估计燃料电池堆的阳极侧的氢气浓度，并且确定氢气的估计浓度是否低于第一预定阈值。 如果估计氢气低于阈值，则氢气从氢源注入阳极侧。 在注入氢气的同时，该方法将阳极侧的氢气的估计浓度与期望浓度进行比较，并在其间产生误差信号。 如果误差信号大于第二预定阈值，则算法继续将氢气注入燃料电池堆的阳极侧。

    FEEDBACK CONTROL OF H2 INJECTION DURING PARK BASED ON GAS CONCENTRATION MODEL
    8.
    发明申请
    FEEDBACK CONTROL OF H2 INJECTION DURING PARK BASED ON GAS CONCENTRATION MODEL 有权
    基于气体浓度模型的公园期间注入氢气的反馈控制

    公开(公告)号：US20110244348A1

    公开(公告)日：2011-10-06

    申请号：US12754279

    申请日：2010-04-05

    申请人： Jun Cai ,  Joseph Nicholas Lovria ,  Sriram Ganapathy ,  Jaehak Jung ,  John P. Salvador

    发明人： Jun Cai ,  Joseph Nicholas Lovria ,  Sriram Ganapathy ,  Jaehak Jung ,  John P. Salvador

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04992 ,  H01M8/04097 ,  H01M8/04104 ,  H01M8/04201 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04303 ,  H01M8/04447 ,  H01M8/04753 ,  H01M8/04798 ,  H01M2250/20 ,  Y02T90/32

    摘要： A method for determining when to inject hydrogen gas into the anode side of a fuel cell stack associated with a fuel cell vehicle when the vehicle is off. The method includes estimating the concentration of hydrogen gas in the anode side of the fuel cell stack using a gas concentration model and determining if the estimated concentration of hydrogen gas is below a first predetermined threshold. If the estimated hydrogen gas is less than the threshold, then hydrogen gas is injected into the anode side from a hydrogen source. While the hydrogen gas is being injected, the method compares the estimated concentration of the hydrogen gas in the anode side to a desired concentration, and generates an error signal there between. If the error signal is greater than a second predetermined threshold, the algorithm continues to inject the hydrogen into the anode side of the fuel cell stack.

    摘要翻译： 一种用于在车辆关闭时确定何时将氢气注入与燃料电池车辆相关联的燃料电池堆的阳极侧的方法。 该方法包括使用气体浓度模型估计燃料电池堆的阳极侧的氢气浓度，并且确定氢气的估计浓度是否低于第一预定阈值。 如果估计氢气低于阈值，则氢气从氢源注入阳极侧。 在注入氢气的同时，该方法将阳极侧的氢气的估计浓度与期望浓度进行比较，并在其间产生误差信号。 如果误差信号大于第二预定阈值，则算法继续将氢气注入燃料电池堆的阳极侧。

    Method to improve reliability of a fuel cell system using low performance cell detection at low power operation
    9.
    发明授权
    Method to improve reliability of a fuel cell system using low performance cell detection at low power operation 有权
    在低功率运行时提高使用低性能电池检测的燃料电池系统的可靠性的方法

    公开(公告)号：US08420271B2

    公开(公告)日：2013-04-16

    申请号：US12502961

    申请日：2009-07-14

    申请人： Tayoung Choi ,  Sriram Ganapathy ,  Jaehak Jung ,  David R. Savage ,  Balasubramanian Lakshmanan ,  Pamela M. Vecasey

    发明人： Tayoung Choi ,  Sriram Ganapathy ,  Jaehak Jung ,  David R. Savage ,  Balasubramanian Lakshmanan ,  Pamela M. Vecasey

    IPC分类号： H01M8/04 ,  H01M8/24

    CPC分类号： H01M8/04552 ,  G01R31/362 ,  H01M8/04358 ,  H01M8/04589 ,  H01M8/04671 ,  H01M2008/1095

    摘要： A system and method for detecting a low performing cell in a fuel cell stack using measured cell voltages. The method includes determining that the fuel cell stack is running, the stack coolant temperature is above a certain temperature and the stack current density is within a relatively low power range. The method further includes calculating the average cell voltage, and determining whether the difference between the average cell voltage and the minimum cell voltage is greater than a predetermined threshold. If the difference between the average cell voltage and the minimum cell voltage is greater than the predetermined threshold and the minimum cell voltage is less than another predetermined threshold, then the method increments a low performing cell timer. A ratio of the low performing cell timer and a system run timer is calculated to identify a low performing cell.

    摘要翻译： 一种用于使用测量的电池电压来检测燃料电池堆中的低效电池的系统和方法。 该方法包括确定燃料电池堆运行，堆垛冷却剂温度高于一定温度，并且堆电流密度在相对低的功率范围内。 该方法还包括计算平均单元电压，以及确定平均单元电压和最小单元电压之间的差是否大于预定阈值。 如果平均电池电压和最小电池电压之间的差值大于预定阈值，并且最小电池电压小于另一预定阈值，则该方法增加低效率小区计时器。 计算低执行小区定时器和系统运行定时器的比率以识别低执行小区。

    BLOCK HEATER USAGE DETECTION AND COOLANT TEMPERATURE ADJUSTMENT
    10.
    发明申请
    BLOCK HEATER USAGE DETECTION AND COOLANT TEMPERATURE ADJUSTMENT 有权
    块式加热器使用检测和冷却温度调节

    公开(公告)号：US20100256892A1

    公开(公告)日：2010-10-07

    申请号：US12536708

    申请日：2009-08-06

    申请人： Samuel Bryan Shartzer ,  Wajdi B. Hamama ,  Roberto De Paula ,  Jaehak Jung ,  Igor Anilovich ,  John W. Siekkinen

    发明人： Samuel Bryan Shartzer ,  Wajdi B. Hamama ,  Roberto De Paula ,  Jaehak Jung ,  Igor Anilovich ,  John W. Siekkinen

    IPC分类号： F02D41/34 ,  F02D41/30

    CPC分类号： F02D41/062 ,  F01P2025/13 ,  F01P2025/32 ,  F02D2200/021 ,  F02D2200/022 ,  F02D2200/0414

    摘要： A control system for an engine includes a block heater determination module, an adjustment module, and an engine control module. The block heater determination module generates a block heater usage signal based on ambient temperature, measured engine coolant temperature, and a length of time of the engine being off prior to engine startup. The adjustment module generates a temperature signal based on the ambient temperature. The engine control module determines a desired fuel mass for fuel injection at engine startup based on the temperature signal when the block heater usage signal has a first state. The engine control module determines the desired fuel mass at engine startup based on the measured engine coolant temperature when the block heater usage signal has a second state.

    摘要翻译： 用于发动机的控制系统包括块加热器确定模块，调节模块和发动机控制模块。 块加热器确定模块基于环境温度，测量的发动机冷却剂温度和在发动机起动之前关闭发动机的时间长度来生成块加热器使用信号。 调整模块根据环境温度产生温度信号。 当块加热器使用信号具有第一状态时，发动机控制模块基于温度信号确定在发动机启动时的燃料喷射的期望燃料质量。 当块加热器使用信号具有第二状态时，发动机控制模块基于测量的发动机冷却剂温度来确定发动机启动时的期望燃料质量。