Multifunctional testing platform for automobile suspension system and testing method thereof

Abstract

The invention discloses a multifunctional testing platform for an automobile suspension system and a testing method thereof. The testing platform comprises a suspension testing rack and a measuring and control system. The suspension testing rack comprises a rack body, an electric cylinder and a spring load quality simulation module connected with the rack body, an actuator excitation head connected with the top of the electric cylinder, a tray connected with the actuator excitation head, a wheel rigidity module fixedly connected with the tray, a spring lower quality simulation module connectedwith the wheel rigidity module, a stepping motor connected with the upper portion of the spring lower quality simulation module and an air source supply system. The measuring and control system comprises various sensors, a data acquisition card, a target machine, a suspension control developing board and a host machine; the testing method comprises the step of testing the suspension performancesof various vehicle models under various working conditions through a spiral spring for adjusting the rigidity of simulated tires, the spring load quality simulation module and the spring lower qualitysimulation module; the testing platform has the advantages of shortening the development period, lowering the developing cost and being recycled.

Description

technical field [0001] The invention relates to an automobile testing device and a testing method, in particular to a multifunctional testing platform for an automobile suspension system and a testing method thereof. Background technique [0002] Suspension is one of the important assemblies of modern automobiles. It is a device that connects the frame and the axle. It can moderate the impact force transmitted to the frame from uneven and undulating roads and attenuate the vibration caused by it. When testing the suspension system, the traditional pure computer simulation uses the method of establishing a mathematical model for simulation. Although the implementation efficiency is high and the cost is low, the simulation results largely depend on the accuracy of the mathematical model and cannot be effectively Reflect the real road environment. The real vehicle road test will be affected by hardware cost and environmental factors, and it is difficult to test the suspension ...

AI Technical Summary

Problems solved by technology

When testing the suspension system, the traditional pure computer simulation uses the method of establishing a mathematical model for simulation. Although the implementation efficiency is high and the cost is low, the simulation results largely depend on the accuracy of the mathematical model and cannot be effectively Reflects the real road environment

If the real vehicle road test will be affected by hardware cost and environmental factors, it is difficult to test the characteristics of the suspension system under extreme working conditions during driving

Images