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    METHOD AND SYSTEM FOR CONTROLLING POWER BATTERY
    14.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING POWER BATTERY 有权
    控制电池的方法和系统

    公开(公告)号：US20160359204A1

    公开(公告)日：2016-12-08

    申请号：US15242301

    申请日：2016-08-19

    Applicant: BYD COMPANY LIMITED

    Inventor： Fangfang Bu ,  Hongjun Wang ,  Chao Zhang

    IPC: H01M10/44 ,  H01M10/48

    CPC classification number: H01M10/443 ,  H01M10/4207 ,  H01M10/441 ,  H01M10/48 ,  H01M10/482 ,  H01M10/486 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M2010/4278 ,  H01M2220/20

    Abstract: A method for controlling a power battery is provided. The method includes: detecting a maximum temperature and a minimum temperature of the plurality of single cells, a plurality of first temperatures of positive electrodes and/or a plurality of second temperatures of negative electrodes, and a plurality of third temperatures of cores; determining whether the plurality of first temperatures and/or the plurality of second temperatures are within a first temperature range; determining whether the plurality of third temperatures are within a second temperature range; managing the power battery; and determining that a connection failure occurs in the power battery if one of the plurality of first temperatures and/or one of the plurality of second temperatures is not within the first temperature range; and determining a core related failure if the third temperature of a first single cell is not within the second temperature range. Further, a system for controlling a power battery is provided.

    Abstract translation: 提供一种用于控制动力电池的方法。 该方法包括：检测多个单个电池的最高温度和最低温度，多个第一温度的正电极和/或多个第二温度的负电极和多个第三温度的磁芯; 确定所述多个第一温度和/或所述多个第二温度是否在第一温度范围内; 确定所述多个第三温度是否在第二温度范围内; 管理动力电池; 以及如果所述多个第一温度中的一个和/或所述多个第二温度中的一个不在所述第一温度范围内，则确定在所述动力电池中发生连接故障; 以及如果第一单电池的第三温度不在第二温度范围内，则确定核心相关故障。 此外，提供了一种用于控制动力电池的系统。

    Temperature adjustment method and temperature adjustment system for vehicle-mounted battery
    17.
    发明授权
    Temperature adjustment method and temperature adjustment system for vehicle-mounted battery 有权

    公开(公告)号：US11271261B2

    公开(公告)日：2022-03-08

    申请号：US16651936

    申请日：2018-09-29

    Applicant: BYD COMPANY LIMITED

    Inventor： Xingchi Wu ,  Jigang Tan ,  Hongjun Wang

    IPC: H01M10/625 ,  H01M10/613 ,  H01M10/615 ,  H01M10/633 ,  H01M10/48 ,  H01M10/6568 ,  H01M10/6569

    Abstract: The present disclosure discloses a temperature adjustment method including: obtaining a required power for temperature adjustment on a battery; obtaining an actual power for temperature adjustment on the battery; and adjusting a temperature of the battery according to the required power for temperature adjustment and the actual power for temperature adjustment. The present disclosure may precisely control a temperature adjustment time of the battery, and the actual power for temperature adjustment on the battery is adjustable in real time, so that a heating power and a cooling power of the vehicle-mounted battery may be precisely controlled according to an actual status of the vehicle-mounted battery, thereby adjusting the temperature of the vehicle-mounted battery when the temperature is excessively high or excessively low, maintaining the temperature of the vehicle-mounted battery within a preset range, and avoiding a case of affecting performance of the vehicle-mounted battery because of the temperature.

    Power battery device
    18.
    发明授权
    Power battery device 有权

    公开(公告)号：US10319966B2

    公开(公告)日：2019-06-11

    申请号：US15122621

    申请日：2015-04-29

    Applicant: BYD COMPANY LIMITED

    Inventor： Xing Liu ,  Hongjun Wang ,  Chao Zhang ,  Fangfang Bu ,  Liqiang Chen

    IPC: H01M2/10 ,  B60K1/04

    Abstract: A power battery device includes: a battery tray having a positioning member provided on the upper surface thereof; and a plurality of battery modules disposed on the battery tray and arranged in at least two layers in an up-down direction, each battery module comprising: a housing having a first positioning portion disposed on the upper surface of the housing and a second positioning portion disposed on the lower surface of the housing; a battery disposed within the housing, the first positioning portion of the housing in a lower layer is matched with the second positioning portion of the housing in an upper layer, and the battery modules in the lowermost layer of the battery modules are positioned by the positioning member.

    Housing assembly and battery module comprising the same
    19.
    发明授权
    Housing assembly and battery module comprising the same 有权

    公开(公告)号：US10312481B2

    公开(公告)日：2019-06-04

    申请号：US15242352

    申请日：2016-08-19

    Applicant: BYD COMPANY LIMITED

    Inventor： Baolin Shao ,  Hongjun Wang ,  Chao Zhang ,  Fangfang Bu ,  Liqiang Chen

    IPC: H01M2/10 ,  H01M2/20

    Abstract: A housing assembly for a battery module includes a plurality of brackets disposed side by side in the front-rear direction and connected by a snap, and each two adjacent brackets defining a space for receiving the battery; a plurality of copper bars disposed vertically on the brackets and having a through-hole adapted for extending an electrode of the battery; and a plurality of insulating frames disposed on the copper bars to cover the electrodes of the batteries; wherein the insulating frame is connected with the bracket by a snap and has an extension direction as same as that of the copper bar. A battery module including the housing assembly is also provided.

    Power system of electric vehicle, electric vehicle comprising the same and method for heating battery group of electric vehicle
    20.
    发明授权
    Power system of electric vehicle, electric vehicle comprising the same and method for heating battery group of electric vehicle 有权

    公开(公告)号：US10232733B2

    公开(公告)日：2019-03-19

    申请号：US14403222

    申请日：2013-05-22

    Applicant: BYD COMPANY LIMITED

    Inventor： Xingchi Wu ,  Hongjun Wang ,  Shibin Xie

    IPC: B60L11/18 ,  H01M10/625 ,  H01M10/615 ,  H01M10/633 ,  H01M10/63

    Abstract: A power system of an electric vehicle, an electric vehicle including the same, and a method for heating a battery group of the electric vehicle are provided. The power system includes: a battery group; a battery heater connected with the battery group; a battery management device, configured to control the battery heater to heat the battery group when a temperature of the battery group is lower than a first heating threshold and a residual electric quantity of the battery group is larger than a running electric quantity threshold, to obtain a current throttle depth change rate of an electric vehicle in real time, and to control the battery heater to stop heating the battery group when the current throttle depth change rate reaches a preset throttle depth change rate threshold; an electric distribution box; a motor; a motor controller; and an isolation inductor.

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