Vehicle-mounted Ethernet software refreshing method and device

Abstract

The invention discloses a vehicle-mounted Ethernet software refreshing method and device. The method comprises the steps: S1, providing options of vehicle refreshing and single Ethernet control unit refreshing through a communication access programming language CAPL script, responding to the options of vehicle refreshing or single Ethernet control unit refreshing by a user, and configuring the Ethernet control unit to diagnose refresh information; S2, respectively loading an Ethernet refreshing security algorithm file and Ethernet to-be-refreshed program software; S3, executing refreshing, analyzing a refreshing result after refreshing is completed, and generating a refreshing report. According to the method, secondary development is carried out on the Ethernet function through the CAPL, and an Ethernet software refreshing tool for customizing Vector does not need to be purchased, so that the development cost can be saved; the threshold of a user is reduced, various refreshing means are provided for offline and product engineers and the like, and necessary technical support can be provided when the development of the Ethernet refreshing function of the diagnostic instrument is not perfect.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, and in particular relates to a method and a device for refreshing vehicle-mounted Ethernet software. Background technique [0002] At present, for vehicle Ethernet software refresh, usually an external diagnostic instrument or a remote server background sends the software upgrade package to the gateway control unit of the vehicle through Ethernet (such as FTP / TCP protocol transmission), and then the gateway forwards it to each Ethernet in the vehicle. The control unit realizes the software refresh of each controller of the vehicle, such as figure 1 shown. It has the following disadvantages: [0003] Controlling the whole process of vehicle software refresh through an external diagnostic instrument or a remote server background communication is complicated, and it is difficult to troubleshoot problems in any link in the middle, and diagnostic instruments and other equipment are ex...

AI Technical Summary

Problems solved by technology

[0003] Controlling the whole process of vehicle software refresh through an external diagnostic instrument or a remote server background communication is complicated, and it is difficult to troubleshoot problems in any link in the middle, and diagnostic instruments and other equipment are expensive and scarce, and the refresh cost is high;

[0004] Only the entire vehicle can be refreshed, and the single-piece refresh and test verification requirements of a single Ethernet control unit cannot be realized;

[0005] The currently used Ethernet FTP / TCP transmission protocol can only ensure the accurate delivery of the communication transport layer, and cannot resolve the control logic requirements of the diagnostic application layer

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