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    ASCERTAINING THE STATE OF HEALTH OF A VEHICLE BATTERY
    1.
    发明公开
    ASCERTAINING THE STATE OF HEALTH OF A VEHICLE BATTERY 审中-公开

    公开(公告)号：US20240361397A1

    公开(公告)日：2024-10-31

    申请号：US18556267

    申请日：2022-03-10

    申请人： AVILOO GmbH

    发明人： Wolfgang BERGER ,  Nikolaus MAYERHOFER

    IPC分类号： G01R31/392 ,  B60L58/12 ,  B60L58/16 ,  G01R31/367 ,  G01R31/388

    CPC分类号： G01R31/392 ,  B60L58/12 ,  B60L58/16 ,  G01R31/367 ,  G01R31/388 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/70

    摘要： A method for ascertaining the state of health of the vehicle battery of an electric vehicle includes charging the vehicle battery and ascertaining specified battery parameters during the charging process, and calculating the state of health of the vehicle battery using a vehicle-specific battery model on the basis of the transmitted battery parameters. A basic battery model, which is based on the vehicle battery type, in the form of an electric equivalent circuit model is first used as the vehicle-specific battery model, wherein the internal resistance and RC elements are ascertained as a function of the cell temperature and the charge state, an open circuit voltage characteristic is ascertained as a function of the charge state, and the cell temperature is ascertained using a thermal model on the basis of the measured battery pack current, EC parameters, the battery module temperature, and the ambient temperature.

    STORAGE BATTERY CAPACITY ESTIMATION DEVICE AND SYSTEM
    3.
    发明公开
    STORAGE BATTERY CAPACITY ESTIMATION DEVICE AND SYSTEM 审中-公开

    公开(公告)号：US20240345171A1

    公开(公告)日：2024-10-17

    申请号：US18750798

    申请日：2024-06-21

    申请人： Nuvoton Technology Corporation Japan

    发明人： Toshio MATSUKI

    IPC分类号： G01R31/388 ,  G01R31/36 ,  G01R31/367 ,  G01R31/392 ,  H01M10/44

    CPC分类号： G01R31/388 ,  G01R31/3648 ,  G01R31/367 ,  G01R31/392 ,  H01M10/44

    摘要： An estimation device includes a measurement data storage storing measurement data items including: the first smoothed voltage value of a storage battery, a smoothed voltage change amount obtained by subtracting the first smoothed voltage value from the second smoothed voltage value of the storage battery, and a smoothed current value measured in synchronization with measurement of the first smoothed voltage value or the second smoothed voltage value, estimates an accumulated charge change amount using a trained estimation model that receives a first smoothed voltage value in a predetermined voltage range, a smoothed voltage change amount, and a smoothed current value, updates the trained estimation model using, as correct answer data, an accumulated charge change amount obtained by integrating current values measured during obtainment of the smoothed voltage change amount, and calculates the total sum of estimated accumulated charge change amounts in the predetermined voltage range to obtain the battery status.

    BATTERY STATUS MONITORING AND BATTERY MANAGEMENT OF AN INFORMATION HANDLING SYSTEM
    5.
    发明公开
    BATTERY STATUS MONITORING AND BATTERY MANAGEMENT OF AN INFORMATION HANDLING SYSTEM 审中-公开

    公开(公告)号：US20240329139A1

    公开(公告)日：2024-10-03

    申请号：US18192342

    申请日：2023-03-29

    申请人： Dell Products L.P.

    发明人： Jui Chin Fang ,  Chien-Hao Chiu ,  Wen-Yung Chang ,  Pei-Ying Lin

    IPC分类号： G01R31/367 ,  G01R31/388 ,  G01R31/389 ,  H02J7/00

    CPC分类号： G01R31/367 ,  G01R31/388 ,  G01R31/389 ,  H02J7/00712

    摘要： Managing a battery including measuring, in response to a first charging current and over a first time period, a first amperage and a first voltage of the cell at predetermined intervals; measuring, in response to a second charging current and over a second time period, a second amperage and a second voltage of the cell at the predetermined intervals; determining that the first amperage of the cell was maintained greater than a first threshold amount of time within the first time period, and in response, qualifying the first amperage and the first voltage as stable; determining that the second amperage of the cell was maintained greater than a second threshold amount of time within the second time period, and in response, qualifying the second amperage and the second voltage as stable; and in response to the qualifying, calculating a DCIR of the cell based on the voltages and the amperage.

    METHOD AND APPARATUS FOR ADJUSTING VALUE OF CURRENT OF BATTERY
    10.
    发明公开
    METHOD AND APPARATUS FOR ADJUSTING VALUE OF CURRENT OF BATTERY 审中-公开

    公开(公告)号：US20240230768A9

    公开(公告)日：2024-07-11

    申请号：US18297754

    申请日：2023-04-10

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Ju Wan LIM ,  Jinho KIM ,  Tae Won SONG

    IPC分类号： G01R31/374 ,  G01R31/367 ,  G01R31/388

    CPC分类号： G01R31/374 ,  G01R31/367 ,  G01R31/388

    摘要： A method for adjusting a current of a battery includes obtaining one or more parameters of a battery including the current of the battery, a voltage and a temperature of the battery, determining a first correction parameter relating to a variation in current due to charging and discharging of the battery, based on at least a portion of the one or more parameters, determining a difference between an electrolyte concentration of an anode surface and an electrolyte concentration of a cathode surface of the battery, based on at least a portion of the one or more parameters, determining a temperature parameter based on the temperature of the battery, determining a second correction parameter relating to a temperature of the battery, based on the difference and the temperature parameter, and determining a correction value for the current of the battery based on the first correction parameter and the second correction parameter.