Automatic coding method and system used for CAN (Controller Area Network) bus fault processing

Abstract

The invention relates to an automatic coding method and system used for CAN (Controller Area Network) bus fault processing. The method comprises the following steps that: obtaining original data information from a CAN database file; extracting target information from the original data information; processing the extracted target information to obtain information required for automatic coding; and according to the information required for the automatic coding, automatically generating a code file which can be directly called by first tool software. By use of the method, the CAN database file can be automatically converted into a CAPL (Communication Application Programming Language) code which can be directly called by the first tool software, CAN bus fault testing and processing can be realized, manpower and time cost can be reduced, and efficiency is improved. Through the automatic coding, users can instantly change CAN bus parameters according to requirements, a CAN bus fault testing period is shortened, and a situation that an item is laid up for a long time can be avoided.

Description

technical field [0001] The invention relates to the technical field of computer and automatic control, in particular to an automatic coding method and system for CAN bus fault processing. Background technique [0002] CAN is the abbreviation of Controller Area Network, CAN bus is one of the most widely used field buses in the world. In North America and Western Europe, the CAN bus protocol has become a standard bus for automotive computer control systems and embedded industrial control LANs. CANalyzer is a general-purpose simulation and analysis tool for networks and distributed systems. When used for CAN bus analysis, it makes CAN networks easy to monitor, analyze and supplement data communication. [0003] The electric vehicle contains multiple controllers, which communicate through the CAN bus. Each controller corresponds to a CAN database file. When the supplier integrates the database file (. CAN bus failure, when the CAN bus fails, CANalyzer software is often used fo...

AI Technical Summary

Problems solved by technology

However, manual programming for CANalyzer software often requires professional programmers who are good at using CAPL to complete, and even semi-professionals who are good at using CAPL need to spend a lot of time writing code, so it takes a lot of manpower and time costs

In addition, the vehicle CAN network is huge and complex. When testing and dealing with CAN bus faults, specific CAN parameters must be modified, such as frame length, parameter value, and frame existence. During the process, the car could not be used normally, which caused the project to be shelved for a long time and brought great inconvenience

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