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    • 2. 发明申请
    • BATTERY CONTROL WITH CELL VOLTAGE VERIFICATION
    • WO2023046856A1
    • 2023-03-30
    • PCT/EP2022/076426
    • 2022-09-22
    • VOLVO CAR CORPORATION
    • EKSTRÖM, Markus
    • B60L3/12B60L15/00B60L53/20B60L58/18G01R31/396H01M10/44H01M10/48H02J7/00
    • The present disclosure relates to electric and/or hybrid electric vehicle drive technologies. In particular, disclosed is a battery arrangement (100) for connecting to an electric machine (200) and/or a power supply (300), comprising: a number of battery cells (110), of which a first sub-number connected in series form a first string (110-1), a second sub-number connected in series form a second string (110-2), and a third sub-number connected in series form a third string (110-3), the first string, second string and third string being connectable to the electric machine as one respective phase; and a number of battery cell controllers (120) forming a number of slave nodes, each battery cell controller (120) connecting at least one terminal of the number of battery cells (100) within one of the strings, each battery cell controller (120) comprising a power electronics arrangement (121) and a sensor (127) configured to acquire at least one battery cell parameter; and a master node (150), configured to connect to each of the first string, second string and third string, the master node (150) being further configured to acquire a total parameter of a respective one of the first string, second string and third string; the battery arrangement (100) being configured to verify the at least one battery cell parameter acquired and the total parameter acquired against each other.