Parallel flashing method and device based on UDS protocol, vehicle and computer readable storage medium

Abstract

The invention relates to a parallel flashing method and device based on a UDS protocol, a vehicle and a computer readable storage medium. The method comprises the following steps: an upper computer analyzes a software upgrade package in a flashing channel distributed to an upgrade task according to the upgrade task in an upgrade task file, and a UDS request instruction required by the whole software upgrading, a reply message corresponding to the UDS request instruction and an upgrading ending instruction are packaged in the software upgrading package; when it is analyzed that sending is needed, the UDS request instruction obtained by analyzing the software upgrade package is sent; when it is analyzed that receiving is needed, an actual reply message fed back by a flashed controller and a reply message obtained by analyzing the software upgrade package are verified, if the verification result is consistent, it is judged that reply of the flashed controller is correct, and the next UDS request instruction continues to be analyzed; and when an end mark is analyzed, the upgrading task is completed. The software upgrade package is integrated with the upgrade instruction and the instruction for operating the upgrade instruction, and the upper computer can automatically and parallelly flash the controller by analyzing the upgrade instruction and the instruction for operating the upgrade instruction, so that the labor cost is saved, and meanwhile, the flash success rate of the controller is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle controller software upgrade, in particular to a UDS protocol-based parallel flashing technology. Background technique [0002] At present, in the field of automobiles, electrification, intelligence, networking, and sharing have become the new direction and trend of automobile development. The functions of vehicle ECU (Electronic Control Unit, electronic control unit) are becoming more and more powerful. With the increasing pressure, ECU firmware upgrades and iterations have become the core needs of OEMs, as well as the key tasks of after-sales maintenance. [0003] In the past, the upgrade method can only be flashed offline through 4S stores, which delays the customer's time and greatly increases the cost of upgrading a batch of software for the OEM. The version update of the design safety needs to be installed on the customer's vehicle as soon as possible. The traditional upgrade method The time...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a parallel flashing method and system based on the UDS protocol. The technical problem to be solved: the usual practice in the related art is to correspond to the codes of the upgrade instructions one by one. If a controller to be flashed does not support this process , you need to re-modify the host computer software, and if multiple controllers do not support the same set of upgrade processes, then you need multiple sets of corresponding host computer software to correspond to it or add many processes to the host computer software. Once there is a difference, you need to Changing the host computer software leads to poor compatibility of the host computer software, and it takes manpower to manage and modify the software; in the traditional automotive controller software upgrade strategy, the host computer only upgrades one controller at a time, so if there are multiple controllers to be flashed at the same time If the controller is used, it will take a lot of time, which will lead to the problem that the upgrade task cannot be completed even if the vehicle is fully charged; the upper computer needs to process the sending of each upgrade command and the reply message fed back by the controller; More than two controllers are flashed in parallel

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