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124 条记录 (耗时 0.019 秒)

    STUCK-CLOSED DIAGNOSIS METHOD AND BATTERY SYSTEM USING SAME
    91.
    发明公开
    STUCK-CLOSED DIAGNOSIS METHOD AND BATTERY SYSTEM USING SAME 审中-实审

    公开(公告)号：EP4425201A1

    公开(公告)日：2024-09-04

    申请号：EP23737352.7

    申请日：2023-01-03

    申请人： LG Energy Solution, Ltd.

    发明人： KI, Jeong Seok ,  JEON, Younghwan

    IPC分类号： G01R31/392 ,  G01R31/396 ,  G01R31/327 ,  G01R19/00 ,  G01R19/165 ,  G01R19/10

    CPC分类号： G01R19/10 ,  G01R19/00 ,  G01R31/396 ,  G01R19/165 ,  G01R31/392 ,  G01R31/327

    摘要： A battery system includes: a plurality of battery packs; a plurality of positive relays connected between a positive electrode and a positive link of the corresponding battery pack for each of the plurality of packs; a plurality of negative relays connected between a negative electrode and a negative link of the corresponding battery pack for each of the plurality of packs; and a plurality of pack BMSs (Battery Management Systems) connected to the plurality of battery packs. Each of the plurality of pack BMSs, in an opening control condition of the plurality of positive relays and the plurality of negative relays, may diagnose whether the corresponding positive relay is stuck-closed based on the first battery pack current flowing to the corresponding battery pack when the corresponding negative relay is closed when a both terminals voltage difference of the corresponding positive relay is less than a first threshold voltage.

    VOLTAGE MEASUREMENT CIRCUIT AND METHOD, AND CIRCUIT BOARD AND CONTROL MODULE
    97.
    发明公开
    VOLTAGE MEASUREMENT CIRCUIT AND METHOD, AND CIRCUIT BOARD AND CONTROL MODULE 审中-实审

    公开(公告)号：EP4411392A1

    公开(公告)日：2024-08-07

    申请号：EP21967675.6

    申请日：2021-12-16

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： MA, Guobin

    IPC分类号： G01R19/00 ,  G01R31/36 ,  H01M10/48

    CPC分类号： H01M10/48 ,  G01R31/396

    摘要： Embodiments of the present application provide a voltage measurement circuit and method, a circuit board, and a control module. The circuit is used for measuring a voltage output by a battery, the battery comprising n battery cells connected in series, wherein n is an integer greater than 1; and the circuit comprising: n low-voltage measurement modules provided in one-to-one correspondence with the n battery cells, a first switching circuit, a second switching circuit, a reference voltage source, and a control module, wherein the reference voltage source is used for outputting a preset reference voltage; and the two ends of each of the low-voltage measurement modules are connected to the two ends of a corresponding one of the battery cells via the first switching circuit, the two ends of each of the low-voltage measurement modules are further connected to the two ends of the reference voltage source via the second switching circuit, and the control module is connected to switching units in the first switching circuit and the second switching circuit, and the control module is further connected to each of the low-voltage measurement modules. The present application makes it possible to balance large-range measurement and measurement precision.

    TRACTION BATTERY SAMPLING ABNORMALITY RECOGNITION APPARATUS AND METHOD, AND BATTERY SWAP STATION
    98.
    发明公开
    TRACTION BATTERY SAMPLING ABNORMALITY RECOGNITION APPARATUS AND METHOD, AND BATTERY SWAP STATION 审中-实审

    公开(公告)号：EP4371810A3

    公开(公告)日：2024-08-07

    申请号：EP23210060.2

    申请日：2023-11-15

    申请人： Nio Technology (Anhui) Co., Ltd

    发明人： LI, Jinxing ,  ZHAO, Jianzhi

    IPC分类号： B60L53/80 ,  B60L3/00 ,  G01R31/00

    CPC分类号： Y02T10/70 ,  B60L53/80 ,  B60L58/15 ,  B60L58/10 ,  B60L58/14 ,  B60L58/24 ,  B60L3/0038 ,  G01R31/007 ,  G01R31/396

    摘要： The disclosure provides a traction battery sampling abnormality recognition apparatus, a traction battery sampling abnormality recognition method, and a battery swap station. The apparatus includes the following modules communicatively connected: a data obtaining module configured to obtain sampled data of a traction battery in a preset time window; a probability calculation module configured to obtain a fluctuation value between sampled data at adjacent moments, and calculate a probability of occurrence of a fluctuation value greater than a preset fluctuation value threshold in the preset time window; and a determining module configured to determine, based on the probability, whether the traction battery has a sampling abnormality, where if the probability is greater than a preset probability threshold, or the probability is less than the probability threshold and a change rate of the probability over time is greater than a preset change rate threshold, the determining module determines that the traction battery has a sampling abnormality. Through longitudinal comparison between the sampled data of the traction battery over time, impact of an external factor can be reduced, and abnormality recognition accuracy can be improved accordingly.