Injector opening delay diagnostic strategy
    1.
    发明授权
    Injector opening delay diagnostic strategy 有权
    注射器开启延迟诊断策略

    公开(公告)号:US08679691B2

    公开(公告)日:2014-03-25

    申请号:US13204012

    申请日:2011-08-05

    IPC分类号: H01M8/04 H01M8/24 H01J7/04

    摘要: A system and method for detecting an intermittent failure of an injector that injects hydrogen gas fuel into the anode side of a fuel cell stack in a fuel cell system. The method includes operating the injector at a fixed injector pulse width and frequency, which causes the stack to generate a constant current, and therefore, a constant fuel consumption rate. While at a constant current, the injector is commanded to a constant duty cycle and frequency that matches the rate of fuel consumption in the fuel cell system. The resulting fuel pressure feedback is then monitored, and if it diverges from a defined nominal value, either in a constant or oscillatory manner, it can be determined that the injector has an intermittent opening failure. In one embodiment, the determination of the injector failure is performed during a shut-down sequence of the fuel cell system.

    摘要翻译: 一种用于检测在燃料电池系统中将氢气燃料喷射到燃料电池堆的阳极侧的喷射器的间歇性故障的系统和方法。 该方法包括以固定的喷射器脉冲宽度和频率操作喷射器,这使得堆叠产生恒定电流,因此产生恒定的燃料消耗率。 在恒定电流下,喷射器被命令为与燃料电池系统中的燃料消耗速率匹配的恒定占空比和频率。 然后监测所得到的燃料压力反馈,并且如果它以恒定或振荡的方式从限定的标称值发散,则可以确定喷射器具有间歇性打开故障。 在一个实施例中,在燃料电池系统的停机序列期间执行喷射器故障的确定。

    Battery end of life determination
    2.
    发明授权
    Battery end of life determination 有权
    电池寿命终结决定

    公开(公告)号:US08598848B2

    公开(公告)日:2013-12-03

    申请号:US12746529

    申请日:2008-04-09

    IPC分类号: H01J7/00 H01J7/04

    摘要: A method for determining an end of life of a battery includes determining a discharge capacity of the battery at a given moment in time, determining a discharge capacity at a functional endpoint of the battery, and determining a fuel remaining in the battery at the given moment in time as a function of both the discharge capacity at the given moment in time and the discharge capacity of the battery at the functional endpoint of the battery. The determined fuel remaining is indicative of an end of life of the battery.

    摘要翻译: 用于确定电池寿命终止的方法包括在给定时刻确定电池的放电容量,确定电池的功能端点处的放电容量,以及在给定时刻确定电池中剩余的燃料 作为在给定时刻的放电容量和电池在功能端点处的电池的放电容量的函数的时间。 所确定的剩余燃料表示电池的寿命终止。

    Battery module having simple-structure safety device
    4.
    发明授权
    Battery module having simple-structure safety device 有权
    电池模块具有结构简单的安全装置

    公开(公告)号:US07746035B2

    公开(公告)日:2010-06-29

    申请号:US11685312

    申请日:2007-03-13

    申请人: Junill Yoon

    发明人: Junill Yoon

    CPC分类号: H01M10/482 H01M10/486

    摘要: Disclosed herein is a medium- or large-sized battery module having a plurality of battery cells (unit cells), wherein the battery module is constructed in a structure in which detection units for detecting physical operation state of the battery cells are mounted to the respective battery cells, the detection units are connected to a control unit of the battery module while the detection units are connected in series with each other, and signals (detected signals) detected from the respective battery cells are transmitted to the control unit while the detected signals are included in signals detected from the entire battery cells. The detection units are mounted to the respective battery cells, and therefore, the accuracy of information on the physical operation state of the battery cells is improved, and the circuit for transmitting the detected signals to the control unit is simple although the number of the detection units is large. Consequently, it is possible to construct a battery module having a simple structure. In addition, the volume change measurement sensors formed in a specific shape are used for a battery module using lithium secondary batteries as unit cells, and therefore, it is possible to accomplish the simple structure of the battery module with reduced costs and to secure the safety of the battery module with high accuracy.

    摘要翻译: 这里公开了具有多个电池单元(单位电池)的中型或大型电池模块,其中,电池模块构造成将用于检测电池单元的物理操作状态的检测单元安装到各个电池单元 电池单元,检测单元被连接到电池模块的控制单元,同时检测单元彼此串联,并且从各个电池单元检测到的信号(检测信号)被发送到控制单元,同时检测信号 被包括在从整个电池单元检测到的信号中。 检测单元被安装到各个电池单元,因此提高了关于电池单元的物理操作状态的信息的精度,并且用于将检测到的信号发送到控制单元的电路是简单的,尽管检测次数 单位很大 因此,可以构造具有简单结构的电池模块。 此外,形成为特定形状的体积变化测量传感器用于使用锂二次电池作为单位电池的电池模块,因此,可以以降低的成本实现电池模块的简单结构并且确保安全性 的电池模块。

    Battery connection detection circuit
    5.
    发明授权
    Battery connection detection circuit 失效
    电池连接检测电路

    公开(公告)号:US07629775B2

    公开(公告)日:2009-12-08

    申请号:US10589682

    申请日:2005-03-01

    申请人: Junji Nishida

    发明人: Junji Nishida

    摘要: A battery connection detection circuit is disclosed that is able to correctly determine an operation condition of a secondary battery and a connection condition between the secondary battery and a charging device. A determination circuit monitors both the voltage Vt1 on the battery connection terminal T1 and the current supplied to the secondary battery BAT, and therefore, the determination circuit can correctly determine the operation condition of the secondary battery and the connection condition between the secondary battery and the charging device even when high frequency noise is superposed on the power supply voltage Vdd, and when the power supply voltage decreases.

    摘要翻译: 公开了能够正确地确定二次电池的操作状态和二次电池与充电装置之间的连接状态的电池连接检测电路。 确定电路监视电池连接端子T1上的电压Vt1和提供给二次电池BAT的电流,因此,确定电路可以正确地确定二次电池的操作状态和二次电池与二次电池之间的连接状态 即使当高频噪声叠加在电源电压Vdd上时,以及当电源电压降低时,也是如此。

    Lithium battery management system
    8.
    发明授权
    Lithium battery management system 有权
    锂电池管理系统

    公开(公告)号:US08173285B2

    公开(公告)日:2012-05-08

    申请号:US11921442

    申请日:2006-02-01

    IPC分类号: H01M10/52 H01J7/04

    摘要: Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; and a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold. A method of managing the temperature of a lithium battery system is also included.

    摘要翻译: 提供一种用于管理具有多个单元的锂电池系统的系统。 电池系统包括电连接到电池并位于电池的一部分附近的可变电阻元件; 以及用于确定利用所述可变电阻元件所述电池的温度是否超过预定阈值的装置。 还包括管理锂电池系统的温度的方法。

    Fluorescent light source with a plurality of sequentially energized electrodes
    9.
    发明授权
    Fluorescent light source with a plurality of sequentially energized electrodes 失效
    荧光光源与多种可连续电能的电极

    公开(公告)号:US3609436A

    公开(公告)日:1971-09-28

    申请号:US3609436D

    申请日:1969-04-21

    申请人: GEN ELECTRIC

    发明人: CAMPBELL JOHN H

    摘要: This invention relates to a fluorescent lamp with an elongated discharge path of annular or flat cross section and with a multiplicity of at least four sequentially energized electrodes at one end of the discharge path in combination with switching means, preferably of the solid state-type for energizing the electrodes. In a preferred embodiment of the invention the lamp has a single base at one end and the auxiliary equipment for operating the lamp is arranged within the lamp base.