发明名称 |
DEVICE FOR PARAMETER ESTIMATION BY MEANS OF A FILTER |
摘要 |
<p>A parameter estimation device using a filter has a preprocessing computing means 6, a state estimating means 7 and a state-of-charge estimating means 9. A low-pass filter 61 of the preprocessing computing means 6 transfers voltage preprocessing value V p and current preprocessing value I p from inputted discharge-and-charge current value I and terminal voltage value V, respectively. The state estimating means 7 estimates parameters of a state equation of a battery equivalent model 7A based on the battery equivalent model 7A containing a resistance and a capacitor from the voltage preprocessing value and the current preprocessing value inputted from the means 6. The state-of-charge estimating means 9 estimates the state of charge from state quantity obtained by the means 7. The time constant varies in such a way that the higher the temperature and the state of charge SoC becomes the smaller the time constant becomes.</p> |
申请公布号 |
EP2618168(A1) |
申请公布日期 |
2013.07.24 |
申请号 |
EP20110824877 |
申请日期 |
2011.07.14 |
申请人 |
CALSONIC KANSEI CORPORATION |
发明人 |
ITABASHI KINNOSUKE;TERANISHI NOZOMU |
分类号 |
G01R31/36;H01M10/48 |
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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