公开(公告)号：US20160124052A1

公开(公告)日：2016-05-05

申请号：US14530376

申请日：2014-10-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SUDHAKAR INGUVA ,  AUSTEN BERNARDI ,  RAMESH REBBA ,  RYAN B. MOULLIET

IPC: G01R31/36

CPC classification number: G01R31/3679 ,  G01R31/3651 ,  H01M10/48 ,  H01M10/486 ,  H01M2220/20

Abstract: System and methods for estimating a life of a battery pack are presented. In certain embodiments, a method for estimating a life of a battery pack may include generating cell-level test data that includes measured parameters a of battery cell included in the battery pack in response to a plurality of test conditions. One or more first thermal response parameters associated with the battery cells of the battery pack may be determined. A battery cell aging model may be generated based, at least in part, on the cell-level test data and the one or more first thermal response parameters. Second thermal response parameters associated with the battery pack may be determined, and an estimated life of the battery pack may be determined based, at least in part, on the battery cell aging model and the second thermal response parameters.

Abstract translation: 呈现用于估计电池组寿命的系统和方法。 在某些实施例中，用于估计电池组的寿命的方法可以包括响应于多个测试条件而生成包括电池组中包括的电池单元的测量参数a的单元级测试数据。 可以确定与电池组的电池单元相关联的一个或多个第一热响应参数。 可以至少部分地基于小区级测试数据和一个或多个第一热响应参数来生成电池单元老化模型。 可以确定与电池组相关联的第二热响应参数，并且可以至少部分地基于电池单元老化模型和第二热响应参数来确定电池组的估计寿命。

公开(公告)号：US20150268307A1

公开(公告)日：2015-09-24

申请号：US14220675

申请日：2014-03-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SUDHAKAR INGUVA ,  VIJAY P. SAHARAN ,  MARK W. VERBRUGGE

IPC: G01R31/36

CPC classification number: G01R31/3679 ,  B60L3/0046 ,  B60L11/1857 ,  B60L11/1861 ,  B60L11/1866 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  B60L2260/44 ,  G01R31/3648 ,  G01R31/3651 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7061

Abstract: System and methods for determining performance degradation of a battery system are presented. In certain embodiments, the disclosed systems and methods may involve testing, monitoring, and/or modeling of battery system cyclic performance degradation at a single battery system operating temperature. The disclosed systems and methods may offer certain efficiencies over conventional techniques for determining cyclic degradation of a battery system. Such efficiencies may allow the disclosed systems and methods to be implemented in connection with real-time battery state estimation methods.

Abstract translation: 介绍了确定电池系统性能下降的系统和方法。 在某些实施例中，所公开的系统和方法可涉及在单个电池系统工作温度下对电池系统循环性能退化的测试，监测和/或建模。 所公开的系统和方法可以比用于确定电池系统的循环降级的常规技术提供一定的效率。 这样的效率可以允许所公开的系统和方法结合实时电池状态估计方法来实现。