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：US20160363629A1

公开(公告)日：2016-12-15

申请号：US14738661

申请日：2015-06-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： PATRICK FROST ,  BRIAN J. KOCH ,  PATRICIA M. LASKOWSKY ,  ASHLEY MCALLISTER

IPC: G01R31/36 ,  B60W10/26 ,  B60W30/188 ,  B60W10/08

CPC classification number: G01R31/3651 ,  B60W10/08 ,  B60W10/26 ,  B60W30/188 ,  B60W2510/244 ,  G01R31/3693 ,  Y02T10/7258

Abstract: System and methods for estimating a future power capability of a battery system included in a vehicle are presented. In some embodiments, a method for estimating a future power capability of a battery system may include determining an initial battery voltage when the battery operates at a current limit and estimating a future battery current at a first time when the battery operates at the associated voltage limit based on the initial battery current. A future battery voltage at the first time when the battery operates at the associated current limit may be determined based on the initial battery voltage. An estimated voltage-limited power capability of the battery at the first time may be determined based on the future battery current and an estimated current-limited power capability of the battery at the first time may be determined based on the future battery voltage.

Abstract translation: 提出了用于估计车辆中包括的电池系统的未来功率能力的系统和方法。 在一些实施例中，用于估计电池系统的未来功率能力的方法可以包括当电池以电流限制工作时确定初始电池电压，并且当电池在相关联的电压限制下工作时在第一时间估计将来的电池电流 基于初始电池电流。 当电池工作在相关联的电流极限时的第一时间的未来电池电压可以基于初始电池电压来确定。 可以基于未来的电池电流来确定电池在第一时间的估计的电压限制功率能力，并且可以基于未来的电池电压来确定电池在第一时间的估计的限电功率能力。

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。