Method for upgrading vehicle-mounted controller based on mobile phone Bluetooth key

Abstract

The invention relates to a method for upgrading a vehicle-mounted controller based on a mobile phone Bluetooth key, and the method comprises the steps that: a gateway of a vehicle reads a current software version of each vehicle-mounted controller, and uploads the current software version to a mobile phone APP; the mobile phone APP uploads the current software version of the vehicle-mounted controller to a background server; when to-be-updated software information sent by the background server is received, the to-be-updated software information is displayed and information for requesting a user to confirm whether to enter updating or not is output; after the confirmation information is received, a software package request is initiated to the background server; the to-be-updated software package encrypted by the background server is received through the PKI, and PKI decryption is performed on the received to-be-updated software package; SDK (Software Development Kit) encryption is carried out on the to-be-updated software package subjected to PKI decryption, SDK encryption is carried out on the to-be-updated software package subjected to SDK encryption, and the to-be-updated software package subjected to SDK encryption is sent to a gateway of the vehicle; and the gateway of the vehicle performs SDK decryption on the received to-be-updated software package, and then performs vehicle-mounted controller software upgrading based on the decrypted to-be-updated software package.

Description

Technical field [0001] The present invention is used in the technical field of the in-vehicle controller software upgrade (car control OTA), which relates to a method based on a mobile phone Bluetooth key upgrade vehicle controller. Background technique [0002] Modern vehicle software has problems rectification, functional upgrades, and function interface optimization. Currently, through OTA (OVER THE AIR), referring to the cloud upgrade technology, providing software upgrade services for networking capabilities, including drivers, systems, and functions Upgrade of application, etc. OTA is divided into two types: SOTA (Software over the air) and FOTA (FIRMware over the air), SOTA is primarily upgraded, such as map software, audio and video software upgrades. FOTA refers to a device or controller to download firmware or update flash memory. Compared to the FOTA needs to rewrite the controller directly, its security and reliability are more challenging. Upgrading the environment r...

AI Technical Summary

Problems solved by technology

Both of the above two solutions use Bluetooth communication to upgrade the vehicle controller software, but they do not discuss how the software flashing package is safely stored on the mobile phone, how the Bluetooth on the mobile phone is encrypted and transmitted to the vehicle communication device, and how the vehicle communication device updates the flashing package. Signature verification and decryption are carried out. There is no effective data encryption protection in the whole link, and any link has the risk of being hacked, cracked, tampered with, and written data, resulting in vehicle driving safety.

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