公开(公告)号：US09459325B2

公开(公告)日：2016-10-04

申请号：US14099640

申请日：2013-12-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edgar P. Calderon ,  Gregory J. Rushlow ,  Hayley Hanchett ,  Jack Cravener

IPC: G01N27/416 ,  G01R31/36

CPC classification number: G01R31/3627 ,  G01R31/3658

Abstract: Systems and methods for scanning a battery cell to identify internal faults are disclosed. In certain embodiments, a method for scanning a battery cell for faults may comprise generating an input signal across first and second charge plates disposed on each side of the battery cell. An open circuit voltage of the battery cell generated in response to the input signal may be measured. The measured open circuit voltage may be compared with a reference signal associated with a reference battery cell having no faults. Based on the comparison, a fault and/or a possible fault within the battery cell being scanned may be identified.

Abstract translation: 公开了用于扫描电池单元以识别内部故障的系统和方法。 在某些实施例中，用于扫描电池单元以用于故障的方法可以包括跨越设置在电池单元的每一侧上的第一和第二充电板产生输入信号。 可以测量响应于输入信号而产生的电池单元的开路电压。 测量的开路电压可以与与没有故障的参考电池单元相关联的参考信号进行比较。 基于该比较，可以识别正被扫描的电池单元内的故障和/或可能的故障。