A method and system for safely flashing vehicle ECU files

Abstract

The invention relates to a vehicle ECU file safe writing method. A remote platform server is used for seeking a to-be-wrote vehicle and sending a writing package file and a secret key file to a remote monitoring terminal, real-time checking is conducted on the writing package file and the secret key file stored in the remote monitoring terminal in real time before writing and during writing, and a writing control command is sent through a remote control terminal. The invention further provides a vehicle ECU file safe writing system based on the method, the system includes the remote monitoring terminal connected with an ECU of the to-be-wrote vehicle, the remote monitoring terminal is connected with the remote platform server through a remote access server cluster, and the remote access server cluster is connected with the remote control terminal. According to the method and the system, safe and reliable ECU file writing is conducted on vehicles in batch in a remote environment, the situation that the vehicles are centralized to one place for writing is avoided at the same time, and a large amount of manpower and financial resources are saved for after-sale maintenance of vehicle factories and suppliers.

Description

technical field [0001] The invention relates to a method and system for safely flashing a vehicle ECU file, belonging to the technical field of automobiles. Background technique [0002] At present, in the field of engines and automobiles, the importance of electronic control technology is becoming increasingly prominent, and ECU (Electronic Control Unit, electronic control unit) is the core component of electronic control. When the ECU has a data failure, the simple and effective maintenance method is to flash the ECU. [0003] Due to the limitation of authority, the current legal ECU flashing is only carried out by the manufacturer, and the staff use special equipment to flash on the spot, but the on-site flashing is quite inconvenient, and it is only applicable to the situation where the vehicles are stored in the same place. The local batch update method is not applicable to the situation where the vehicle is distributed to the owner for self-refreshing. [0004] If re...

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Problems solved by technology

[0003] Due to the limitation of authority, the current legal ECU flashing is only carried out by the manufacturer, and the staff use special equipment to flash on the spot, but the on-site flashing is quite inconvenient, and it is only applicable to the situation where the vehicles are stored in the same place. The local batch update method is not applicable to the situation where the vehicle is distributed to the owner for self-refreshing

[0004] If remote flashing is used, there is a potential safety hazard of being tampered with by malicious users. In this case, you need to authenticate your identity to the flashing ECU, but generally car manufacturers will not provide Seedkey algorithm files in the form of source code.

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