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    Apparatus, method and battery pack for detecting fault of electrical conductor
    1.
    发明授权
    Apparatus, method and battery pack for detecting fault of electrical conductor 有权

    公开(公告)号：US11296366B2

    公开(公告)日：2022-04-05

    申请号：US16835859

    申请日：2020-03-31

    申请人： LG CHEM, LTD.

    发明人： Hyun-Chul Lee ,  Dong-Keun Kwon

    IPC分类号： H01M10/48 ,  G01R31/364 ,  G01R31/3842 ,  G01R31/389 ,  G01R31/396 ,  H01M50/20

    摘要： An apparatus, a method and a battery pack for detecting a fault of at least one of first and second electrical conductors connected to a positive terminal and a negative terminal of the battery, respectively. The apparatus includes a current sensor measuring a battery current, a voltage sensor measuring a voltage between the first electrical conductor and the second electrical conductor as a battery voltage, and a control unit. The control unit determines an idle voltage value indicating the battery voltage measured while charging and discharging of the battery is stopped. The control unit determines a diagnosis voltage value indicating the battery voltage measured while the battery is being charged or discharged. The control unit determines whether at least one of the first and second electrical conductors is faulty based on a difference between the idle voltage value and the diagnosis voltage value.

    BATTERY MANAGEMENT SYSTEM
    4.
    发明申请
    BATTERY MANAGEMENT SYSTEM 有权
    电池管理系统

    公开(公告)号：US20150280464A1

    公开(公告)日：2015-10-01

    申请号：US14438125

    申请日：2014-09-24

    申请人： LG CHEM, LTD.

    发明人： Ju-Hyun Kang ,  Dal-Hoon Lee ,  Sang-Hoon Lee ,  Dong-Keun Kwon ,  Yasuhito Eguchi

    IPC分类号： H02J7/00

    CPC分类号： B60L11/1851 ,  B60L11/1864 ,  B60L2240/547 ,  H01M2010/4271 ,  H02J7/0021 ,  H02J7/0024 ,  H02J7/0063 ,  H02J2007/0096 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061

    摘要： The present disclosure discloses a battery management system that uses a small number of opto-couplers to reduce a production cost. The battery management system is controlled to maintain a turn-off state in a normal condition. Also, switches are connected in series, and the switches are connected such that when any one switch turns on, switches connected subsequent to the turned-on switch turn on in sequential order. The turn-on of the last connected switch causes a switch turning on an opto-coupler to be turned on. As a result, when the opto-coupler turns on, a battery management device may transmit information to an external device.

    摘要翻译： 本公开公开了一种使用少量光耦合器来降低生产成本的电池管理系统。 控制电池管理系统以在正常状态下保持关闭状态。 此外，开关串联连接，并且开关被连接，使得当任何一个开关接通时，接通开关之后连接的开关按顺序打开。 最后连接的开关的导通导致开关打开光耦合器以导通。 结果，当光耦合器接通时，电池管理装置可以向外部装置传送信息。

    Battery management system
    6.
    发明授权
    Battery management system 有权
    电池管理系统

    公开(公告)号：US09434272B2

    公开(公告)日：2016-09-06

    申请号：US14438125

    申请日：2014-09-24

    申请人： LG CHEM, LTD.

    发明人： Ju-Hyun Kang ,  Dal-Hoon Lee ,  Sang-Hoon Lee ,  Dong-Keun Kwon ,  Yasuhito Eguchi

    IPC分类号： H02J7/00 ,  B60L11/18 ,  H01M10/42

    CPC分类号： B60L11/1851 ,  B60L11/1864 ,  B60L2240/547 ,  H01M2010/4271 ,  H02J7/0021 ,  H02J7/0024 ,  H02J7/0063 ,  H02J2007/0096 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061

    摘要： The present disclosure discloses a battery management system that uses a small number of opto-couplers to reduce a production cost. The battery management system is controlled to maintain a turn-off state in a normal condition. Also, switches are connected in series, and the switches are connected such that when any one switch turns on, switches connected subsequent to the turned-on switch turn on in sequential order. The turn-on of the last connected switch causes a switch turning on an opto-coupler to be turned on. As a result, when the opto-coupler turns on, a battery management device may transmit information to an external device.

    摘要翻译： 本公开公开了一种使用少量光耦合器来降低生产成本的电池管理系统。 控制电池管理系统以在正常状态下保持关闭状态。 此外，开关串联连接，并且开关被连接，使得当任何一个开关接通时，接通开关之后连接的开关按顺序打开。 最后连接的开关的导通导致开关打开光耦合器以导通。 结果，当光耦合器接通时，电池管理装置可以向外部装置发送信息。