Battery charge and discharge control system and battery charge and discharge control method
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United States of America Patent
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Oct 24, 2017
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app pub date -
Aug 31, 2015
filing date -
Jan 30, 2015
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Abstract
A control system includes a state-of-charge (SOC) measuring unit and a controller. The SOC measuring unit measures a SOC of a first battery pack and a SOC of a second battery pack. The controller adjusts the SOC of the first battery pack and the SOC of the second battery pack. When a difference between the SOC of the first battery pack and the SOC of the second battery pack is less than a first threshold value, the controller performs an adjustment to adjust the SOC of the first battery pack and the SOC of the second battery pack so that said difference becomes equal to the first threshold value. An average of the SOC of the first battery pack and the SOC of the second battery pack before the adjustment is equal to an average of the SOC of the first battery pack and the SOC of the second battery pack after the adjustment. The controller pulse-charges or pulse-discharges the first battery pack and the second battery pack using a first C-rate.
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