公开(公告)号：US20140203785A1

公开(公告)日：2014-07-24

申请号：US13747275

申请日：2013-01-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： ROBERT C. BARASZU ,  KURT M. JOHNSON ,  ZACHARY D. BYLSMA ,  DAMON R. FRISCH ,  GEORGE ROBISON ,  ASHLEY MCALLISTER

IPC: H02J7/00

CPC classification number: H02J7/00 ,  H01M10/425 ,  H01M10/482 ,  H01M2220/20 ,  H02J7/0021 ,  H02J7/0026 ,  H02J2007/004 ,  Y02T10/7005 ,  Y02T10/7055

Abstract: Systems and methods for estimating the relative capacity of individual battery subdivisions in a battery system are presented. In some embodiments, a system may include calculation system configured to analyze the electrical parameters to generate derivative values of the parameters over a period of time. The calculation system may further calculate summation values associated with individual battery subdivisions based upon the derivate values. A battery control system may utilize the summation values to generate one or more commands configured to control an aspect of an operation of the battery pack based on using the summation values. The summation values associated with battery subdivisions may be used to determine a relative capacity for storing electrical energy, according to some embodiments. The determination of relative capacity may be used by a control system to prevent over-discharge of a battery subdivision having the lowest energy storage capacity.

Abstract translation: 提出了用于估计电池系统中各个电池细分相对容量的系统和方法。 在一些实施例中，系统可以包括被配置为分析电参数以在一段时间内生成参数的导数值的计算系统。 计算系统可以基于导出值进一步计算与各个电池细分相关联的求和值。 电池控制系统可以利用求和值来生成配置成基于使用求和值来控制电池组的操作的一个方面的一个或多个命令。 根据一些实施例，与电池细分相关联的求和值可用于确定用于存储电能的相对容量。 相对容量的确定可以由控制系统用于防止具有最低能量存储容量的电池分区的过度放电。

公开(公告)号：US20150028814A1

公开(公告)日：2015-01-29

申请号：US13951246

申请日：2013-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： KURT M. JOHNSON ,  ROBERT C. BARASZU ,  ZACHARY D. BYLSMA ,  ASHLEY MCALLISTER ,  GEORGE ROBISON

IPC: H02J7/00

CPC classification number: H02J7/00 ,  B60L3/12 ,  B60L11/1862 ,  B60L11/1866 ,  B60L2240/547 ,  G01N27/416 ,  H02J7/0014 ,  H02J7/04 ,  H02J7/14 ,  H02J9/00 ,  Y02T10/7016 ,  Y02T10/7044 ,  Y02T10/7055 ,  Y02T10/7061 ,  Y02T10/7072 ,  Y02T10/72

Abstract: Methods and systems for adjusting the voltage limits of a battery. In some implementations, voltage data may be received from each of a plurality of battery sections of a vehicle battery. A voltage offset for the vehicle battery may be calculated using the voltage data. The voltage offset may be calculated by determining a difference between an average voltage taken from each of the plurality of battery sections and at least one of a minimum voltage of all of the battery cells and an average cell voltage from a battery section having the lowest average cell voltage. The voltage offset may be applied to dynamically adjust a voltage limit associated with the vehicle battery so as to prevent any of the battery cells in the vehicle battery from exceeding the voltage limit.

Abstract translation: 用于调整电池电压限制的方法和系统。 在一些实施方式中，可以从车辆电池的多个电池部分中的每一个接收电压数据。 可以使用电压数据来计算车辆电池的电压偏移。 可以通过确定从多个电池部分中的每一个获取的平均电压与所有电池单元的最小电压中的至少一个和来自具有最低平均值的电池部分的平均电池电压之间的差来计算电压偏移 电池电压。 可以施加电压偏移以动态地调整与车辆电池相关联的电压限制，以防止车辆电池中的任何电池单元超过电压限制。

公开(公告)号：US20140152317A1

公开(公告)日：2014-06-05

申请号：US13690886

申请日：2012-11-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： ROBERT C. BARASZU ,  KURT M. JOHNSON ,  ZACHARY D. BYLSMA ,  DAMON R. FRISCH ,  WEI LIU ,  DAVID S. MAXWELL

IPC: G01N27/416

CPC classification number: G01N27/416 ,  H01M10/482 ,  H01M2220/20

Abstract: A battery system may include a plurality of subdivisions, such as battery cells or sub-packs. A measurement system configured to determine a subdivision electrical parameter associated with each of a plurality of subdivisions. A battery control may identify a subdivision satisfying a criterion based on the plurality of subdivision electrical parameters. According to some embodiments, the battery control system may determine a ratio of the subdivision electrical parameter of the identified subdivision to the electrical parameter of the battery pack. The ratio may be used to scale the electrical parameter associated with the battery pack by the ratio. According to other embodiments, the subdivision electrical parameter associated with the identified subdivision may be provided to a battery state estimation system. The scaled electrical parameter or the electrical parameter associated with the identified subdivision may be used by a battery state estimation system to generate an estimated battery state.

Abstract translation: 电池系统可以包括多个细分，诸如电池单元或子包。 一种测量系统，被配置为确定与多个子部分中的每一个相关联的细分电参数。 电池控制可以基于多个细分电参数识别满足标准的细分。 根据一些实施例，电池控制系统可以确定所识别的细分的细分电参数与电池组的电参数的比率。 该比率可以用于按比例缩放与电池组相关联的电参数。 根据其他实施例，可以将与所识别的细分相关联的细分电参数提供给电池状态估计系统。 缩放的电参数或与所识别的细分相关联的电参数可以由电池状态估计系统使用以产生估计的电池状态。