Non-linear dynamics and control of an automotive suspension system based on local and global bifurcation analysis

Yeou Feng Lue, Shun Chang Chang

研究成果: 雜誌貢獻文章同行評審

1 引文 斯高帕斯(Scopus)

摘要

This paper details the non-linear dynamic behaviours and control of a non-linear semi-active suspension system using a quarter-car model under kinematic excitation by a road surface profile. The results of local and global bifurcation analysis indicate that the hysteretic non-linear characteristics of damping force cause the suspension system to exhibit codimension-two bifurcation, resulting in homoclinic orbits and a pitchfork bifurcation. The complex dynamic behaviour of automotive suspension systems was examined using a bifurcation diagram, phase portraits, a Poincaré map, and frequency spectra. We also used Lyapunov exponent to identify the occurrence of chaotic motion and verify our analysis. Finally, a dither signal control was used to convert chaotic behaviours into periodic motion. Simulation results verify the effectiveness of the proposed control method.

原文英語
頁(從 - 到)340-359
頁數20
期刊International Journal of Vehicle Autonomous Systems
13
發行號4
DOIs
出版狀態已發佈 - 2017

ASJC Scopus subject areas

  • Automotive Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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