Hybrid damping fuzzy current control of semi-active vehicle suspension with magnetorheological damper

doi:10.16731/j.cnki.1671-3133.2018.10.015

Abstract

Abstract: The nonlinear damping characteristics of Magnetorheological Damper (MRD) were expressed with the proposed adjustable sigmoid model to simulate its mechanical experimental results,and a quarter-car model with MRD was also established.Based on the hybrid damping control strategy,a Hybrid damping Fuzzy current Control (HFC) strategy was proposed by using fuzzy controller,which realizes the continuous adjustment of the equivalent damping coefficient of MRD and the automatic regulating for the damping distribution coefficient,so that it could have a better flexibility and adaptability.On the basis of the above,numerical simulations for the proposed algorithm,Hybrid damping On-off current Control (HOOC) and passive control strategy were investigated to demonstrate the effectiveness of the proposed approaches under the bump road and random road excitation.The results show that the proposed control strategy has a better damping performance.

Key words: magnetorheological damper, mechanical model, vehicle suspension, hybrid damping fuzzy current control, vibration attenuation effect

CLC Number:

U463.33

Hu Guoliang, Liu Qianjie, Li Gang. Hybrid damping fuzzy current control of semi-active vehicle suspension with magnetorheological damper[J]. Modern Manufacturing Engineering, 2018, 457(10): 94-101.

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