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.

公开(公告)号：US20230219454A1

公开(公告)日：2023-07-13

申请号：US17930276

申请日：2022-09-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chao WANG ,  Chunshu LAN ,  Jihai XIE

IPC: B60L53/80 ,  B60L53/66

CPC classification number: B60L53/80 ,  B60L53/66

Abstract: This application provides a battery swap method, a battery swap station, and an electrical apparatus. The battery swap method includes: obtaining identity information of an electrical apparatus which requests a swap of a battery; authenticating the identity information; establishing communication with the electrical apparatus in response to a determination that the identity information passes the authentication; determining whether the battery in the electrical apparatus and a shared battery in the battery swap station satisfy a battery swap condition; and swapping the battery in the electrical apparatus with the shared battery in the battery swap station in response to a determination that at least one of the battery in the electrical apparatus and the shared battery in the battery swap station satisfies the battery swap condition. The batteries are authenticated in addition to authentication of the electrical apparatus, thereby improving reliability and security of authentication during a battery swap.