Invention Grant
- Patent Title: Systems and methods to protect against over-discharge in a battery system
- Patent Title (中): 防止电池系统过度放电的系统和方法
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Application No.: US13690886Application Date: 2012-11-30
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Publication No.: US09395327B2Publication Date: 2016-07-19
- Inventor: Robert C. Baraszu , Kurt M. Johnson , Zachary D. Bylsma , Damon R. Frisch , Wei Liu , David S. Maxwell
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Phillips Ryther & Winchester
- Agent Jared L. Cherry
- Main IPC: G01N27/416
- IPC: G01N27/416 ; H01M10/48

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.
Public/Granted literature
- US20140152317A1 SYSTEMS AND METHODS TO PROTECT AGAINST OVER-DISCHARGE IN A BATTERY SYSTEM Public/Granted day:2014-06-05
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