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1.发明申请公开(公告)号：US20180123185A1
公开(公告)日：2018-05-03
申请号：US15359099
申请日：2016-11-22
发明人： Kwangsun Kim , Junyoung Kim , Kangwo Joo
CPC分类号： H01M10/443 , G01N25/00 , G01R31/3648 , G01R31/3679 , H01M10/446 , H01M10/48 , H01M10/486 , H01M2010/4271 , H02J7/0047
摘要： Provided is a method for predicting battery health in consideration of a temperature of a battery management system, the method including: measuring the voltage, current, and temperature of the battery and calculating the initial state of charge (SOC) of the battery by an internal control unit when the operation of the battery management system (BMS) is started; checking whether the battery is in the charged state or in the discharged state by the control unit; calculating the current amount of accumulated discharge by the control unit if the battery is in the discharged state; calculating an accumulated discharge rate capacity by the control unit if the battery is in the charged state and if the amount of accumulated discharge is calculated; calculating the capacity reduction rate of the battery depending on the average usage temperature of the battery by the control unit; calculating a currently available battery capacity ratio by using the capacity reduction rate and the accumulated discharge rate capacity value by the control unit; and calculating and outputting the state of health (SOH) of the battery, which corresponds to the temperature change of the battery, by the control unit based on the battery capacity ratio.
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2.发明授权公开(公告)号：US10211487B2
公开(公告)日：2019-02-19
申请号：US15359099
申请日：2016-11-22
发明人： Kwangsun Kim , Junyoung Kim , Kangwo Joo
摘要： Provided is a method for predicting battery health in consideration of a temperature of a battery management system, the method including: measuring the voltage, current, and temperature of the battery and calculating the initial state of charge (SOC) of the battery by an internal control unit when the operation of the battery management system (BMS) is started; checking whether the battery is in the charged state or in the discharged state by the control unit; calculating the current amount of accumulated discharge by the control unit if the battery is in the discharged state; calculating an accumulated discharge rate capacity by the control unit if the battery is in the charged state and if the amount of accumulated discharge is calculated; calculating the capacity reduction rate of the battery depending on the average usage temperature of the battery by the control unit; calculating a currently available battery capacity ratio by using the capacity reduction rate and the accumulated discharge rate capacity value by the control unit; and calculating and outputting the state of health (SOH) of the battery, which corresponds to the temperature change of the battery, by the control unit based on the battery capacity ratio.
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