Battery management system and driving method thereof
    2.
    发明授权
    Battery management system and driving method thereof 有权
    电池管理系统及其驱动方法

    公开(公告)号:US07548821B2

    公开(公告)日:2009-06-16

    申请号:US11771733

    申请日:2007-06-29

    IPC分类号: G01R31/36

    CPC分类号: G01R31/3658 G01R31/3662

    摘要: The present invention relates to a battery management system and method. In some embodiments the battery management system includes a sensing unit and a micro controller unit (MCU). The sensing unit measures the current, the voltage and the temperature of a battery. The MCU receives the voltages, the currents, and the temperatures, calculates an estimated cell voltage, by applying a pack voltage sensing error and the cell voltage deviation to the cell voltages, and calculates an estimated cell resistance, by adding a pack assembly resistance to an internal resistance of the cell, and calculates an pack output of the battery by using the estimated cell voltage and the estimated cell resistance.

    摘要翻译: 本发明涉及电池管理系统和方法。 在一些实施例中,电池管理系统包括感测单元和微控制器单元(MCU)。 感测单元测量电池的电流,电压和温度。 MCU接收电压,电流和温度,通过对电池电压施加电池电压检测误差和电池电压偏差来计算估计的电池电压,并通过将包装组装电阻加到 电池的内部电阻,并且通过使用估计的电池电压和所估计的电池电阻来计算电池的包装输出。

    Battery pack
    3.
    发明申请
    Battery pack 有权
    电池组

    公开(公告)号:US20080231232A1

    公开(公告)日:2008-09-25

    申请号:US12076426

    申请日:2008-03-18

    IPC分类号: H02J7/00 H01M10/48

    摘要: A battery pack is constructed with a plurality of secondary batteries or a plurality of battery assemblies, each having a plurality of unit batteries, and at least one safety switch, which can facilitate precise measurement of the voltages of the plurality of secondary batteries or battery assemblies. The battery pack is constructed with a plurality of secondary batteries, at least one safety switch electrically connected between two adjacent batteries among the plurality of secondary batteries, and a plurality of sensing lines for measuring voltages of the plurality of secondary batteries. The quantity of the sensing lines is equals to a sum of the number of the secondary batteries, and the number of the safety switches, and plus one.

    摘要翻译: 电池组由多个二次电池或多个电池组件构成,每个电池组具有多个单元电池,以及至少一个安全开关,其可以促进对多个二次电池或电池组的电压的精确测量 。 电池组由多个二次电池构成,至少一个电气连接在多个二次电池中的两个相邻电池之间的安全开关,以及用于测量多个二次电池的电压的多个感测线。 感测线的数量等于二次电池的数量和安全开关的数量之和,加上一个。

    Battery management system and driving method thereof
    6.
    发明授权
    Battery management system and driving method thereof 有权
    电池管理系统及其驱动方法

    公开(公告)号:US08111071B2

    公开(公告)日:2012-02-07

    申请号:US11858798

    申请日:2007-09-20

    IPC分类号: G01N27/416 H02J7/00

    摘要: A sensing and control apparatus for a battery management system is provided. The sensing and control apparatus includes: a sensing unit and a main control unit. The sensing unit includes: a cell relay of a plurality of cell relays and a voltage detection unit. The cell relay is configured to be coupled to at least one of a plurality of cells. The voltage detection unit is coupled to a cell relay. The voltage detection unit is configured to: receive a reference voltage when each of the plurality of cell relays is turned off; and generate a second voltage by amplifying by a gain a first voltage that corresponds to the reference voltage. The main control unit is configured to calculate a valid gain corresponding to a ratio of the second voltage to the reference voltage when the temperature of the voltage detection unit is within a threshold temperature range.

    摘要翻译: 提供了一种用于电池管理系统的感测和控制装置。 感测和控制装置包括:感测单元和主控制单元。 感测单元包括:多个单元继电器的单元继电器和电压检测单元。 小区中继被配置为耦合到多个小区中的至少一个小区。 电压检测单元耦合到电池继电器。 电压检测单元被配置为:当多个单电池继电器中的每一个被关闭时,接收参考电压; 并且通过增益放大对应于参考电压的第一电压来产生第二电压。 主控制单元被配置为当电压检测单元的温度在阈值温度范围内时,计算对应于第二电压与参考电压的比率的有效增益。

    Battery Management System (BMS) and driving method thereof
    9.
    发明申请
    Battery Management System (BMS) and driving method thereof 有权
    电池管理系统(BMS)及其驱动方法

    公开(公告)号:US20080091364A1

    公开(公告)日:2008-04-17

    申请号:US11882466

    申请日:2007-08-01

    IPC分类号: G01R31/36 G06F19/00

    CPC分类号: H02J7/0077

    摘要: A Battery Management System (BMS) includes a sensing unit and a Micro Control Unit (MCU). The sensing unit measures a battery current, a battery voltage, and a battery temperature. The MCU determines a State of Charge (SOC) reset point based on the measured battery current and voltage. The BMS determines a battery overcharge state using a current integration result after the SOC reset point is reached. The MCU includes an SOC calculator and a full charge determining unit. The SOC calculator transmits a present current integration value upon detecting the SOC reset point. The full charge determining unit receives the present current integration value, integrates the current using the measured battery current, and determines that the battery is being overcharged when the current integration value reaches a predetermined battery rating

    摘要翻译: 电池管理系统(BMS)包括感测单元和微控制单元(MCU)。 感测单元测量电池电流,电池电压和电池温度。 MCU根据测得的电池电流和电压确定充电状态(SOC)复位点。 在达到SOC复位点之后,BMS使用当前积分结果来确定电池过充电状态。 MCU包括SOC计算器和完全充电确定单元。 SOC计算器在检测到SOC复位点时发送当前积分值。 满充电确定单元接收当前电流积分值,使用所测量的电池电流对电流进行积分,并且当电流积分值达到预定电池额定值时确定电池被过充电

    BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF
    10.
    发明申请
    BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF 有权
    电池管理系统及其驱动方法

    公开(公告)号:US20080088279A1

    公开(公告)日:2008-04-17

    申请号:US11858798

    申请日:2007-09-20

    IPC分类号: H02J7/00

    摘要: A sensing and control apparatus for a battery management system is provided. The sensing and control apparatus includes: a sensing unit and a main control unit. The sensing unit includes: a cell relay of a plurality of cell relays and a voltage detection unit. The cell relay is configured to be coupled to at least one of a plurality of cells. The voltage detection unit is coupled to a cell relay. The voltage detection unit is configured to: receive a reference voltage when each of the plurality of cell relays is turned off; and generate a second voltage by amplifying by a gain a first voltage that corresponds to the reference voltage. The main control unit is configured to calculate a valid gain corresponding to a ratio of the second voltage to the reference voltage when the temperature of the voltage detection unit is within a threshold temperature range.

    摘要翻译: 提供了一种用于电池管理系统的感测和控制装置。 感测和控制装置包括:感测单元和主控制单元。 感测单元包括:多个单元继电器的单元继电器和电压检测单元。 小区中继被配置为耦合到多个小区中的至少一个小区。 电压检测单元耦合到电池继电器。 电压检测单元被配置为:当多个单电池继电器中的每一个被关闭时,接收参考电压; 并且通过增益放大对应于参考电压的第一电压来产生第二电压。 主控制单元被配置为当电压检测单元的温度在阈值温度范围内时,计算对应于第二电压与参考电压的比率的有效增益。