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It is important to detect the vehicle rear axle on-line during production process. To realize the quality detection of the rear axle, vibration diagnosis method is adopted to analyze the vibration characteristics of the rear axle and calculate characteristic frequency. The on-line detection control system of vehicle rear axle quality is designed by extracting characteristic parameters of correctly reflecting rear axle running state and applying PLC system. The system has been operated stably, reliably and efficiently through the test. It has a practical significance.

This paper presents a low-cost, simple and reliable solution for automotive electronics Hardware-In-Loop (HIL) simulation, taking Jetta AT1.6 car as object, designs and develops automotive electronics HIL simulation platform. Firstly, the overall structure of the platform is designed; secondly, system hardware platform is developed and built using Protel DXP; then, HIL simulation models of ABS (Anti-lock Braking System), engine and automatic transmission are built using Matlab/Simulink and develop automotive electronics HIL simulation platform; finally, carry on the experiment and the results show that the designed HIL simulation experimental platform is good. The platform has widespread applicability in the teaching experiments and the aspects of developing, debugging and testing of automotive electronics control systems.