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1. 发明申请

US20120105014A1 FULL CHARGE CAPACITY VALUE CORRECTION CIRCUIT, BATTERY PACK, AND CHARGING SYSTEM 有权
标题翻译：完全充电能力值校正电路，电池组和充电系统
公开(公告)号：US20120105014A1
公开(公告)日：2012-05-03
申请号：US13381580
申请日：2011-02-28
申请人： Masato Nakayama , Toshiyuki Nakatsuji , Hisashi Kameyama
发明人： Masato Nakayama , Toshiyuki Nakatsuji , Hisashi Kameyama
IPC分类号： G01R31/36 , H02J7/00
CPC分类号： G01R31/3624 , G01R31/3651
摘要： A full charge capacity value correction circuit, has: a current detection portion which detects a current value of current flowing in a secondary battery; a voltage detection portion which detects a terminal voltage value of the secondary battery; a capacity storage portion which stores a full charge capacity value indicating a full charge capacity of the secondary battery; a remaining quantity calculation portion which calculates, as a accumulated remaining quantity, a remaining charging quantity in the secondary battery from a total value obtained by cumulatively adding charged electrical quantities and subtracting discharged electrical quantities in the secondary battery, based on charge/discharge currents of the secondary battery detected by the current detection portion; a remaining quantity estimation portion which estimates, as an estimated remaining quantity, a remaining quantity of the secondary battery by using a terminal voltage value detected by the voltage detection portion; and a full charge capacity value correction portion which, when an estimated remaining quantity estimated by the remaining quantity estimation portion becomes equal to a reference value set in advance, in a case where the estimated remaining quantity is greater than the accumulated remaining quantity, adds a difference electrical quantity, which is equivalent to a difference between the thus estimated remaining quantity and accumulated remaining quantity calculated by the remaining quantity calculation portion, to the full charge capacity value stored in the capacity storage portion, but in a case where the estimated remaining quantity is less than the accumulated remaining quantity, subtracts the difference electrical quantity from the full charge capacity value stored in the capacity storage portion.
摘要翻译：一种完全充电容量值校正电路，具有：检测在二次电池中流动的电流的电流值的电流检测部; 电压检测部，其检测二次电池的端子电压值; 容量存储部，其存储表示二次电池的满充电容量的完全充电容量值; 剩余量计算部分，根据累积剩余量计算二次电池中的剩余充电量，该累计剩余量是根据累加电荷量累计增加并减去二次电池中的放电电量，所述二次电池由所述电流检测部检测; 剩余量估计部，通过使用由电压检测部检测出的端子电压值，作为估计剩余量，估计二次电池的剩余量; 以及完全充电容量值校正部，当所述估计剩余量大于所述累计剩余量的情况下，当由所述剩余量估计部估计的估计剩余量变得等于预先设定的基准值时，差分电量等于由剩余量计算部分计算出的这样估计的剩余量与累计剩余量之间的差与存储在容量存储部中的完全充电容量值的差，但是在估计剩余量小于累积剩余量，从存储在容量存储部中的满充电量值减去差电量。

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