Multi-supplier product software upgrading method for commercial vehicle

Abstract

The invention relates to a multi-supplier product software upgrading method for a commercial vehicle. The method comprises the following steps: acquiring a to-be-written software upgrading data packet for upgrading a software system of the commercial vehicle; executing a software upgrading data packet verification operation before writing; executing software upgrading version matching operation; checking whether a numerical value exists under the software version attribute of the C2 file of the software upgrading data packet or not; if the software version attribute is empty, determining that the writing fails and software version verification is not passed so as to quit the current upgrading; if a software version number numerical value exists, verifying the software version of the software upgrading data packet; if ''not in the upgrading range'', determining that the writing fails and software version verification is not passed so as to quit the current upgrading; if ''in the upgrading range'', storing the original vehicle data before writing; executing software data writing operation; and executing DID write-in parameter operation. According to the method, the problems of parameter mismatching, supplier errors, software matching errors and false writing errors are solved, operation steps are saved, wrong parameters cannot be input, and the problem that the re-writing process cannot be carried out is solved.

Description

technical field [0001] The invention relates to the technical field of electronic and electrical control of commercial vehicles, in particular to a software upgrading method for multi-supplier products of commercial vehicles. Background technique [0002] In terms of software upgrade of the ECU on the current vehicle, it supports obtaining software data through the server for upgrading, and also supports obtaining software data packages locally for upgrading. [0003] The existing technology is aimed at local upgrade. After connecting the OBD port of the vehicle through the diagnostic equipment, connect the ECU to be upgraded, select the software data upgrade, and then select the software data package to be used for the upgrade, and then start to upgrade the software. If the upgrade fails, you can try again upgrade. The biggest feature of the prior art is that there is almost no verification process. [0004] The defective of prior art is as follows: [0005] 1. Since man...

AI Technical Summary

Problems solved by technology

[0011] Aiming at the above problems, the present invention provides a multi-vendor product software upgrading method for commercial vehicles. Realize automatic configuration, and there will be no mistakes of manually entering wrong parameters; solve the problem that after flashing fails, the software version, hardware version and other information may not be read again, resulting in the failure of the flashing process

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