Hardware-in-the-loop rack, diagnostic test method and diagnostic test system

Abstract

The invention provides a hardware-in-the-loop rack, a diagnostic test method and a diagnostic test system. The hardware-in-the-loop rack comprises a real-time processor and a controller local area network board card, a hardware-in-the-loop simulation model runs in the real-time processor; the hardware-in-the-loop simulation model comprises a unified diagnosis service application layer model, a transmission layer model and a controller local area network communication model; the unified diagnosis service application layer model comprises a sending signal processing module and a receiving signal analysis module; and the controller local area network board card is used for completing the function of the controller local area network communication model. According to the hardware-in-the-loop rack, the diagnostic test method and the diagnostic test system, an automatic unified diagnostic service test function can be realized without an external diagnostic instrument; the cost is low, the test system is high in integration degree, and rapid and flexible testing is facilitated; therefore, the unified diagnosis service testing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of controller diagnostic testing, in particular to a hardware-in-the-loop platform, a diagnostic testing method and a diagnostic testing system. Background technique [0002] Hardware-in-the-Loop (HIL) is connected to the controller through the input and output interface, and runs the simulation model based on the real-time processor to simulate the controlled object under the control of the controller in extreme working conditions or dangerous working conditions. The running state in the situation scenario, so as to realize the diagnostic test of the controller to the controlled object when a fault occurs in the above scenario. The fault diagnosis test includes verifying the fault action of the controller and the unified diagnosis service test, such as reading fault codes and snapshot information. Wait. [0003] The unified diagnostic service test in the fault diagnosis test of the hardware-in-the-loop ben...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a hardware-in-the-loop platform, a diagnostic testing method and a diagnostic testing system, which are used to solve the problem of unrealized unified diagnostic services of the hardware-in-the-loop platform in the prior art. The problem with the automation function of the test

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