Automatic sequence testing system and method for whole vehicle CAN communication

Abstract

The invention relates to an automatic sequence testing system and an automatic sequence testing method for whole vehicle CAN communication. The automatic sequence testing system comprises data collection equipment, an Android client, and sequence generation software, wherein the data acquisition equipment is connected with a vehicle OBD interface and is used for acquiring a real-time CAN communication message and wirelessly transmitting the CAN communication message to the Android client; the sequence generation software provides an environment for writing a test sequence for a user, realizesdetection of grammar and logic of the test sequence, and exports a test sequence text for the Android client to read and test; and the Android client receives and analyzes the CAN communication message from the data acquisition equipment, and reads the test sequence text from the sequence generation software, thereby realizing automatic test of the message data. The automatic sequence testing system and the automatic sequence testing method are used for solving the problems that an existing CAN testing system is high in price and complex in operation, later maintenance and function modification are not facilitated, equipment is huge and testing can only be conducted on static vehicles.

Description

technical field [0001] The invention belongs to the technical field of testing, and in particular relates to an automatic sequence testing system and method for CAN communication of a whole vehicle. Background technique [0002] CAN bus communication test is an important link in the off-line commissioning of automobile companies. In order to ensure that the CAN communication is normal and the control logic of each ECU (Electronic Control Unit) of the vehicle meets the requirements, it is necessary to collect and test the communication messages. The test content is mainly to detect the correctness of the signal state and the correctness of the message sending timing logic. [0003] At present, in the automotive communication and related industries, the mainstream CAN bus message analysis tools have mature functions and strong professionalism, but they are expensive and complicated to operate, which is not convenient for batch testing of complete vehicles. Part of the customi...

AI Technical Summary

Problems solved by technology

[0003] At present, in the automotive communication and related industries, the mainstream CAN bus message analysis tools have mature functions and strong professionalism, but they are expensive and complicated to operate, which is not convenient for batch testing of complete vehicles.

Part of the customized vehicle off-line test tool can write test logic according to the needs of users, and realize the one-key detection function, but the customized system is not conducive to later maintenance and function modification, and it is accompanied by the possibility of secondary charges

At the same time, the traditional test integration equipment is huge, and the equipment is not easy to move at any time, and can only be tested for stationary vehicles

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