BATTERY PACK, CONTROL CIRCUIT, AND CONTROL METHOD
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United States of America Patent
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Sep 9, 2016
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Sep 8, 2014
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Abstract
According to an embodiment, a battery pack includes an initial state estimation unit, a temperature estimation unit, and a determination unit. The internal state estimation unit estimates an internal state of a secondary battery based on measurement data. The temperature estimation unit estimates the temperature of the secondary battery based on the measurement data and the estimation parameter. The determination unit compares an absolute value of a temperature difference between a measured temperature of the secondary battery contained in the measurement data and the estimated temperature with one or more temperature threshold levels, and determines a temperature state of the secondary battery in accordance with a comparison result.
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