Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1995-06-16
1997-06-03
Tso, Edward
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 35, 320 39, 320 31, 324427, H01M 1044, H01M 1046
Patent
active
056358202
ABSTRACT:
The present invention discloses a controlling device and a method for charging a battery for an electric vehicle which improves the battery consumption ratio and its stability. The charge controlling device includes a battery temperature sensing member, a battery voltage sensing member, a current sensing member, a charging mode switch, a charge control device. When the predetermined charging mode is a constant current/constant voltage method, if the battery temperature is above the maximum predetermined temperature, a charging end signal is produced. If the battery temperature is below the minimum predetermined temperature, the full-charging state is determined in accordance with the measured current value and the charging end signal is produced. On the other hand, when the predetermined charging mode is a constant current charging mode, if the battery temperature is below the minimum predetermined temperature, the battery voltage drop state is determined. IF the battery voltage drop occurs below the predetermined voltage, the charging end signal is produced in accordance with the charging limit time, and a battery charging member.
REFERENCES:
patent: 4829226 (1989-05-01), Nakamura et al.
patent: 5122722 (1992-06-01), Goedken et al.
patent: 5166596 (1992-11-01), Goedken
patent: 5245268 (1993-09-01), Wang
patent: 5477127 (1995-12-01), Shiojima et al.
Hyundai Motor Company
Tso Edward
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