Method and system for calculating available power of a battery

Details Method and system for calculating available power of a battery Method and system for calculating available power of a battery

2007-07-31

2007-07-31

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

10826178

ABSTRACT:
A method for calculating available power of a battery includes steps of calculating an equivalent charge resistance at a current charge current, a current SOC (state of charge), and a current battery temperature using predetermined equivalent charge resistance data, calculating an effective no-load charge voltage at the current charge current, the current SOC, and the current battery temperature using predetermined effective no-load charge voltage data, calculating a maximum charge current based on the equivalent charge resistance, the effective no-load charge voltage, and a predetermined maximum charge voltage, and calculating available charge power based on the maximum charge current, the predetermined maximum charge voltage, and a predetermined battery maximum current. A system for executing the method is also disclosed.

REFERENCES:
patent: 5381096 (1995-01-01), Hirzel
patent: 5625272 (1997-04-01), Takahashi
patent: 5633573 (1997-05-01), Van Phuoc et al.
patent: 5905362 (1999-05-01), Nagano et al.
patent: 2004/0130297 (2004-07-01), Baeuerlein et al.
patent: 103 48 031 (2004-04-01), None
patent: 10-104325 (1998-04-01), None

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