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Automatic diagnosis test method based on VT system

A technology for diagnostic testing and system testing, applied in general control systems, electrical testing/monitoring, control/regulation systems, etc., can solve the problems of complex testing steps and low degree of automation, and achieve the effect of improving adaptability and improving the degree of automation

Active Publication Date: 2018-04-20
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to propose a kind of automatic diagnosis test method based on VT system, aims to solve existing in the prior art, the existing test method for automobile ECU control system has the technical problem of low degree of automation and complicated test steps, Avoid a lot of manual input of operation data

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  • Automatic diagnosis test method based on VT system
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  • Automatic diagnosis test method based on VT system

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Embodiment Construction

[0033] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] refer to figure 1 , figure 1 It is a schematic flow chart of the first embodiment of the present invention.

[0035] Such as figure 1 Shown, the automatic diagnostic testing method based on VT system of the present invention, comprises the following steps:

[0036] Step S10, building a VT system test environment for testing the ECU control system;

[0037] In step S10, set up the VT system test environment, the VT system test environment is used to test the ECU control system of the car, and the pins of the VT board and the ECU control system are utilized in the VT system test environment Connect, simulate the stimulus signal required for testing, that is, implement fault injection. Described VT system test environment comprises the ECU control system of automobile, VT system, terminal, CAN jammer and CAN ...

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Abstract

The invention discloses an automatic diagnosis test method based on a VT system. The automatic diagnosis test method includes the steps of step S10, establishing a VT system testing environment for testing an ECU control system; step S20, establishing a simulation model corresponding to the VT system test environment; step S30, carrying out fault diagnosis on the ECU control system based on a testcase in the simulation model, and generating a test report. According to the invention, the problems in the prior art are solved. Compared with the prior art, the existing testing method for the automobile ECU control system has the technical problems that the automation degree is low and the testing steps are complex, so that the action of manual input operation data is avoided.

Description

technical field [0001] The invention belongs to the field of testing of automobile control systems, in particular to an automatic diagnosis and testing method based on a VT system. Background technique [0002] At present, with the increasing electrical functions of automobiles in recent years, there are more and more electronic control units (ECU, Electronic Control Unit) on automobiles, and the diagnostic functions of ECU itself are becoming more and more abundant. The ECUs are connected together through CAN, LIN, FlexRay and other bus communication protocols with the help of various communication media to form a vehicle network to realize mutual information exchange. In order to ensure that the ECU can work normally in the CAN network, and when the ECU encounters network communication failures or electrical failures during the communication process, it can self-diagnose the corresponding fault codes. In the development stage of ECU, the OEM will release the ECU communica...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 覃华强彭杨匡小军王俏力陈兴渝
Owner SAIC-GM-WULING AUTOMOBILE CO LTD