发明名称 |
Battery charge measurement and discharge reserve time prediction technique and apparatus |
摘要 |
A method of testing one or more cells and parameterising the results in order to obtain a characteristic curve/function from which cell discharge reserve time can be predicted from cell voltage. The test involves obtaining a plurality of data points representing the voltage of a cell as a function of charge remaining, and parameterising the data points to obtain a function representing cell voltage and charge remaining. The function allows charge remaining to be calculated from cell voltage. The invention also provides for a device for measuring capacity and predicting discharge reserve time of a cell, the device including a voltage and current measuring means adapted to measure the voltage and load current of a cell. The device also includes a timing means so that a number of voltage and current data points can be obtained with respect of time. The data points are parameterised and the device produces a function relating charge remaining to cell voltage whereby the charge remaining can be determined by measuring the cell voltage.
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申请公布号 |
US6469471(B1) |
申请公布日期 |
2002.10.22 |
申请号 |
US20010763991 |
申请日期 |
2001.02.27 |
申请人 |
INVENSYS ENERGY SYSTEMS (NZ) LIMITED |
发明人 |
ANBUKY ADNAN H.;PASCOE PHILLIP E. |
分类号 |
G01R31/00;G01R31/36;H01M10/48;H02J7/00;(IPC1-7):H02J7/00 |
主分类号 |
G01R31/00 |
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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