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    Method and system for determining a state of charge of a battery
    1.
    发明授权
    Method and system for determining a state of charge of a battery 有权
    用于确定电池的充电状态的方法和系统

    公开(公告)号：US08108160B2

    公开(公告)日：2012-01-31

    申请号：US12238204

    申请日：2008-09-25

    申请人： Wei Liu ,  Michael J. Gielniak ,  Jian Lin ,  Brian Koch ,  Damon R. Frisch ,  Joseph M. Lograsso

    发明人： Wei Liu ,  Michael J. Gielniak ,  Jian Lin ,  Brian Koch ,  Damon R. Frisch ,  Joseph M. Lograsso

    IPC分类号： H02J7/00

    CPC分类号： H01M10/48 ,  G01R31/3606 ,  H01M10/0525 ,  H01M10/345

    摘要： Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components.

    摘要翻译： 提供了用于确定电池的充电状态的方法和系统。 基于电池的第一特性计算充电状态的第一分量。 基于电池的第二特性计算充电状态的第二分量。 基于第一属性相对于充电状态的变化的变化率来对充电状态的第一组成部分进行加权。 基于相对于充电状态的变化的第二属性的变化率来对电荷状态的第二分量进行加权。 基于第一和第二加权分量来确定充电状态。

    Method for use With A Vehicle Battery Pack Having A Number of Individual Battery Cells
    5.
    发明申请
    Method for use With A Vehicle Battery Pack Having A Number of Individual Battery Cells 有权
    使用具有多个单个电池单元的车载电池组的方法

    公开(公告)号：US20100321025A1

    公开(公告)日：2010-12-23

    申请号：US12489684

    申请日：2009-06-23

    申请人： Jian Lin ,  Xidong Tang ,  Brian J. Koch ,  Joseph M. Lograsso ,  Andrew J. Namou ,  Rezina S. Nabi ,  Damon R. Frisch

    发明人： Jian Lin ,  Xidong Tang ,  Brian J. Koch ,  Joseph M. Lograsso ,  Andrew J. Namou ,  Rezina S. Nabi ,  Damon R. Frisch

    IPC分类号： G01N27/416

    CPC分类号： H01M10/4207 ,  H01M10/052 ,  H01M10/441 ,  Y02E60/122

    摘要： A system and method for use with a vehicle battery pack having a number of individual battery cells, such as a lithium-ion battery commonly used in hybrid electric vehicles. In one embodiment, the method evaluates individual battery cells within a vehicle battery pack in order to obtain accurate estimates regarding their average transient voltage effect, open circuit voltage (OCVCell) and/or state of charge (SOCCell) so that a cell balancing process can be performed. These cell evaluations may be performed fairly soon after the vehicle is turned off and in a manner that utilizes a minimal amount of in-vehicle resources.

    摘要翻译： 一种用于具有多个单独电池单元的车载电池组的系统和方法，例如通常用于混合电动车辆的锂离子电池。 在一个实施例中，该方法评估车辆电池组中的各个电池单元，以获得关于它们的平均瞬态电压效应，开路电压（OCVCell）和/或充电状态（SOCCell））的准确估计，使得电池平衡过程可以 被执行。 这些电池评估可以在车辆关闭之后很快进行并且以利用最少量车载资源的方式进行。

    Fast search algorithm for finding initial diffusion voltage in electro-chemical systems
    9.
    发明授权
    Fast search algorithm for finding initial diffusion voltage in electro-chemical systems 有权
    用于在电化学系统中寻找初始扩散电压的快速搜索算法

    公开(公告)号：US08054046B2

    公开(公告)日：2011-11-08

    申请号：US12018653

    申请日：2008-01-23

    申请人： Jian Lin ,  Brian J. Koch ,  Damon R. Frisch ,  Michael J. Gielniak

    发明人： Jian Lin ,  Brian J. Koch ,  Damon R. Frisch ,  Michael J. Gielniak

    IPC分类号： H02J7/04

    CPC分类号： B60L11/1851 ,  B60L2210/20 ,  G01R31/362 ,  G01R31/3651 ,  H01M10/441 ,  H01M10/482 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/725 ,  Y10S903/903

    摘要： A method for rapidly determining an initial diffusion voltage (Vdiff)initial as a starting point in calculating a diffusion voltage in an electro-chemical cell (e.g., a battery used in an automotive vehicle) includes obtaining a time difference toff between a time when the cell was last turned-OFF and a time when the cell was next turned-ON, selecting a starting diffusion voltage (Vdiff)start based on toff, determining a trial diffusion voltage Vdiff based on a diffusion circuit model and (Vdiff)start, calculating an error voltage Verror=(Vdiff)−|VOFF−VON| where VOFF and VON are cell voltages at turn-OFF and turn-ON respectively, repeating the foregoing determining and calculating steps using for each iteration (Vdiff)start=(Vdiff)previous+Verror until Verror is less than or equal to a first predetermined tolerance amount ε, storing in a memory a value of Vdiff corresponding to the condition Verror≦ε, and setting (Vdiff)initial equal to the just stored value of Vdiff. A further diffusion voltage Vdiff is then determined using the same diffusion circuit model and the just obtained (Vdiff)initial and is advantageously used by a controller in an electric propulsion vehicle to determine a state of charge of the propulsion battery.

    摘要翻译： 一种用于在计算电化学电池（例如，汽车中使用的电池）中的扩散电压的初始点的初始扩散电压（Vdiff）初始化的起始点的方法包括获得时间差toff， 电池最后关闭，电池下一次接通的时间，基于toff选择起始扩散电压（Vdiff）开始，基于扩散电路模型确定试验扩散电压Vdiff（Vdiff）开始，计算 误差电压Verror =（Vdiff） - | VOFF-VON | 其中VOFF和VON分别是关断和导通时的电池电压，重复上述确定和计算步骤，用于每次迭代（Vdiff）开始=（Vdiff）先前+ Verror，直到Verror小于或等于第一预定 容许量＆egr;在存储器中存储与条件Verror＆nlE;＆egr相对应的Vdiff的值，以及设置（Vdiff）初始值等于刚刚存储的Vdiff值。 然后使用相同的扩散电路模型和刚刚获得的（Vdiff）初始值确定另外的扩散电压Vdiff，并且有利地由电动推进车辆中的控制器使用以确定推进电池的充电状态。

    Computer-Implemented Method of Releasing Battery State Estimation Software
    10.
    发明申请
    Computer-Implemented Method of Releasing Battery State Estimation Software 有权
    计算机实现电池状态估计软件的方法

    公开(公告)号：US20090158261A1

    公开(公告)日：2009-06-18

    申请号：US11956370

    申请日：2007-12-14

    申请人： Michael J. Gielniak ,  Damon R. Frisch

    发明人： Michael J. Gielniak ,  Damon R. Frisch

    IPC分类号： G06F9/45

    CPC分类号： G06F8/65

    摘要： A computer implemented method of facilely releasing a BSE software module adapted for execution by an electronic control unit having an update model of the BSE software and a controller having an embedded desktop model of the BSE software, includes a plurality of autonomously performed steps resulting in the compiling of a plurality of c-files into a library file. A single keyword activated preferred embodiment is disclosed in a MatLab®/Simulink®/Real-Time Workshop® environment.

    摘要翻译： 一种易于释放适于由具有BSE软件的更新模型的电子控制单元和具有BSE软件的嵌入式桌面模型的控制器执行的BSE软件模块的计算机实现的方法包括多个自主执行的步骤， 将多个c文件编译成库文件。 单个关键字激活的优选实施例在MatLab / Simulink / Real-TimeWorkshop环境中被公开。