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1. 发明授权

US09515508B2 Battery management system 有权
标题翻译：电池管理系统
公开(公告)号：US09515508B2
公开(公告)日：2016-12-06
申请号：US13804594
申请日：2013-03-14
申请人： O2Micro Inc.
发明人： Weidong Xue , Anquan Xiao , Xiaohu Tang , Xiaofei Gong
IPC分类号： H02J7/00 , H01M10/48 , H01M10/42
CPC分类号： H02J7/007 , H01M10/482 , H01M2010/4271 , H02J7/0014 , H02J7/0016 , H02J7/0018 , H02J2007/0037
摘要： A battery management system includes detecting circuitry and control circuitry coupled to the detecting circuitry. The detecting circuitry detects cell voltages of battery cells of a battery pack. The control circuitry alternates between a normal state and a charging prohibition state. In the normal state, charging of the battery cells is enabled and the cell voltages increase, and if a voltage of a battery cell of the battery cells exceeds a predetermined overcharge threshold, then the control circuitry transitions to the charging prohibition state. In the charging prohibition state, charging of the battery cells is disabled, and the voltage of the battery cell decreases if at least one cell of the battery cells has a voltage less than a balance threshold. If the voltage of the battery cell falls to a predetermined overcharge-released threshold, then the control circuitry transitions to the normal state and enables charging of the battery cells.
摘要翻译：电池管理系统包括耦合到检测电路的检测电路和控制电路。检测电路检测电池组的电池单体的电池电压。控制电路在正常状态和充电禁止状态之间交替。在正常状态下，能够使电池单体充电，并且电池电压增加，并且如果电池单电池的电压超过预定的过充电阈值，则控制电路转换到充电禁止状态。在充电禁止状态下，如果电池单元的至少一个电池具有小于平衡阈值的电压，则电池单元的充电被禁用，并且电池单元的电压降低。如果电池单元的电压下降到预定的过充电阈值，则控制电路转换到正常状态并使电池单元能够充电。

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