Method for predicting battery health in consideration of temperature of battery management system

    公开(公告)号:US10211487B2

    公开(公告)日:2019-02-19

    申请号:US15359099

    申请日:2016-11-22

    Abstract: 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.

    Microphone
    110.
    发明授权

    公开(公告)号:US10182288B2

    公开(公告)日:2019-01-15

    申请号:US15541473

    申请日:2016-01-08

    Inventor: Byungki Kim

    Abstract: A microphone comprises: a vibration member having a plate shape and formed so as to have elasticity and cause bending due to sound waves; a case having a depressed groove, which forms an air layer between the depressed groove and the vibration member since the vibration member is stacked on an upper part thereof, and coupled to the upper part of the depressed groove such that the vibration member is vibrated by sound waves; and a vibration detection unit provided on the vibration unit and the case and measuring the vibration of the vibration member vibrating by sound waves on the case, wherein when the vibration member vibrates, the air in the air layer flows so as to damp the vibration of the vibration member.

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