Method and system for calculating available power of a battery
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United States of America Patent
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Jul 31, 2007
Grant Date -
Feb 17, 2005
app pub date -
Apr 16, 2004
filing date -
Aug 13, 2003
priority date (Note) -
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status (Latency Note)
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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.
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