发明名称 |
ELECTRIC STORAGE DEVICE MANAGEMENT SYSTEM, ELECTRIC STORAGE DEVICE PACK, AND METHOD OF ESTIMATING STATE OF CHARGE |
摘要 |
An electric storage device management system includes a voltage sensor, a memory, and a controller. The voltage sensor detects a voltage across an electric storage device having a correlation between an open circuit voltage (OCV) and a state of charge (SOC) including a slight change region and a sharp change region. The memory stores information on correlation between OCV and SOC in the sharp change region. The controller is configured to: determine an OCV based on a voltage detected by the voltage sensor; determine whether the defined OCV is within the sharp change region; determine an SOC corresponding to the defined OCV based on the stored information stored if the defined OCV is within the sharp change region; determine the determined SOC as an estimated SOC; and prohibit the determining of the SOC as an estimated SOC if the defined OCV is out of the sharp change region. |
申请公布号 |
US2013300425(A1) |
申请公布日期 |
2013.11.14 |
申请号 |
US201313888213 |
申请日期 |
2013.05.06 |
申请人 |
GS YUASA INTERNATIONAL, LTD. |
发明人 |
SHIRAISHI TAKEYUKI;ITAGAKI TAKESHI |
分类号 |
G01R31/36 |
主分类号 |
G01R31/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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