Judging method of electromobile car battery discharging termination based on small wave transformation |
Title： |
| Judging method of electromobile car battery discharging termination based on small wave transformation |
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Application Number： |
200410000006 |
Application Date： |
2004/01/02 |
Announcement Date： |
2004/12/22 |
Pub. Date： |
2007/08/22 |
Publication Number： |
1556417 |
Announcement Number： |
1333262 |
Grant Date： |
2007-8-22 |
Granted Pub. Date： |
2007-8-22 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01R 31/36, H01M 10/44 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Wang Junping, Chen Quanshi, Tian Guangyu |
Key Words： |
Judging method, electromobile car battery, discharging termination, small wave transformation |
Abstract： |
In the invention, using method of fixed final voltage and slope method of discharge curve synthetically carries out judgment of discharge off. Using method of fixed final voltage carried out prejudgment. When load voltage is lower then fixed final voltage, wavelet analysis module is started up. Using wavelet transform analyzes signal of load voltage on batteries to pick up catastrophe point of slope. When catastrophe point of slope occurs, discharge is stopped. The invention possesses strong adaptability. The method determines final state of discharge in self-adapting under different environment in use and different kinds of batteries. Moreover, the method overcomes influence of measuring noise. |
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 Relevancy information |
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| Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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