US 12,229,244 B2
Method for manufacturing and starting up battery management system
Chao Wang, Ningde (CN); Tingda Lin, Ningde (CN); and Jihai Xie, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Nov. 1, 2022, as Appl. No. 17/978,903.
Application 17/978,903 is a continuation of application No. PCT/CN2022/094250, filed on May 20, 2022.
Claims priority of application No. 202210019089.0 (CN), filed on Jan. 7, 2022.
Prior Publication US 2023/0222206 A1, Jul. 13, 2023
Int. Cl. G06F 21/45 (2013.01); G06F 21/57 (2013.01); G06F 21/62 (2013.01)
CPC G06F 21/45 (2013.01) [G06F 21/572 (2013.01); G06F 21/6218 (2013.01); G06F 2221/034 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A manufacturing method for a battery management system comprising a plurality of battery management units, the plurality of battery management units comprising a first battery management unit and a second battery management unit, the first battery management unit comprising a main core micro control unit, a first data transmission micro control unit and a hardware security module, the second battery management unit comprising a second data transmission micro control unit, and the method comprising:
obtaining, by a manufacturing apparatus for the battery management system, a main core message authentication code based on firmware data of the main core micro control unit;
obtaining, by the manufacturing apparatus, a first data transmission message authentication code based on firmware data of the first data transmission micro control unit, and obtaining a second data transmission message authentication code based on firmware data of the second data transmission micro control unit; and
configuring, by the manufacturing apparatus, the hardware security module based on the main core message authentication code, the first data transmission message authentication code and the second data transmission message authentication code, including writing the main core message authentication code, the first data transmission message authentication code and the second data transmission message authentication code into the hardware security module, so that the battery management system verifies the plurality of battery management units based on using the hardware security module at starting up.