Apparatus and method for controlling charging and...

Details Apparatus and method for controlling charging and... Apparatus and method for controlling charging and...

2006-09-05

2006-09-05

Tibbits, Pia (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07102330

ABSTRACT:
An apparatus and method for controlling charging and discharging of an energy storage device. If the charging voltage that is applied exceeds a restriction determining voltage, the power value at that time is held as the charging power upper limit value. In addition, by multiplying a restriction coefficient by the charging power upper limit value while gradually reducing the restriction coefficient until the voltage drops below a restriction removal determining voltage. By setting its result as a control target value of the charging power, the charging power is gradually restricted. In contrast, if the applied charging voltage drops below the restriction removal determining voltage, the charging power is conversely gradually restored to its original state using a control target value obtained by multiplying the restriction coefficient by the charging power upper limit value while gradually increasing the restriction coefficient until the voltage equals or goes above the restriction determining voltage.

REFERENCES:
patent: 6072300 (2000-06-01), Tsuji
patent: 6160380 (2000-12-01), Tsuji et al.
patent: 6642719 (2003-11-01), Seto
patent: 6932174 (2005-08-01), Hirata et al.
patent: 6947855 (2005-09-01), Verbrugge et al.
patent: 9-215111 (1997-08-01), None
patent: 9-312901 (1997-12-01), None

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