公开(公告)号：US20230222206A1

公开(公告)日：2023-07-13

申请号：US17978903

申请日：2022-11-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chao WANG ,  Tingda LIN ,  Jihai XIE

IPC: G06F21/45 ,  G06F21/57 ,  G06F21/62

CPC classification number: G06F21/45 ,  G06F21/572 ,  G06F21/6218 ,  G06F2221/034

Abstract: The present application relates to a method for manufacturing a battery management system and a method for starting up a battery management system. The battery management system includes a plurality of battery management units, the plurality of battery management units include a first battery management unit and a second battery management unit, the first battery management unit includes a main core micro control unit, a first data transmission micro control unit and a hardware security module, and the second battery management unit includes a second data transmission micro control unit. According to the embodiments of the present application, a comprehensive verification for the battery management system including a plurality of battery management units can be achieved with one hardware security module.

公开(公告)号：US20230221949A1

公开(公告)日：2023-07-13

申请号：US18185213

申请日：2023-03-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chunshu LAN ,  Tingda LIN ,  Chao WANG

IPC: G06F8/65 ,  H04L9/06 ,  B60R16/023

CPC classification number: G06F8/65 ,  H04L9/0643 ,  B60R16/0231 ,  H04L2209/84

Abstract: A vehicle secure start method applicable to an electronic control unit of a vehicle includes, after the vehicle is powered on, signing stored first firmware based on a preset symmetric encryption algorithm and a symmetric key to obtain a first signature value, comparing the first signature value with a stored second signature value, and controlling the vehicle to be securely started in response to the first signature value being same as the second signature value. The symmetric key is generated based on a random number generation algorithm when firmware is received for a first time. The second signature value is generated by performing encryption based on the preset symmetric encryption algorithm and the symmetric key when the first firmware is received.