Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells
Reexamination Certificate
2008-09-29
2011-10-25
Diao, M'Baye (Department: 2858)
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
C320S118000, C320S119000, C320S153000
Reexamination Certificate
active
08044637
ABSTRACT:
A charging and equalizing method for a battery having a control computer in a charging system in communication with a plurality of module processors. Charging and equalization pauses periodically for voltage measurement by the module processors. The control computer determines when to equalize battery cells in the modules based on their open circuit voltages transmitted by the module processors. A selected group of cells in each module can be equalized. Equalization is carried out in the modules until all of the module processors indicate that equalization has been completed. Charging can then resume until charging is complete or cells reach a maximum voltage given by the control computer. In an alternative embodiment, a selected group of cells may be partially bypassed while charging to reduce the charge rate of the cell.
REFERENCES:
patent: 5869950 (1999-02-01), Hoffman et al.
patent: 6511764 (2003-01-01), Marten
patent: 7755326 (2010-07-01), Thivierge
patent: 2007/0126400 (2007-06-01), Benckenstein et al.
Fredette Albert R.
Thivierge Daniel P.
Diao M'Baye
Kasischke James M.
Nasser Jean-Paul A.
Stanley Michael P.
The United States of America as represented by the Secretary of
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