Model Establishment and Parameter Analysis on Shimmy of Electric Vehicle with Independent Suspensions

Tian Mi, Gabor Stepan, Denes Takacs, Nan Chen, Ning Zhang

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

In order to study the shimmy problem of the electric vehicle with independent suspensions, a 5 DoF model is established using the Lagrange Equation. Gyroscopic moment and tyre nonlinearity are both considered, and tyre-road constraint equations are derived on the non-slip assumption. Stability charts are conducted with the linearized model, while numerical simulation is also made so that these two methods can verify each other. The results show that bifurcation occurs at certain vehicle forward speed. Suspension structural parameters, such as caster angle, affect wheel shimmy. Furthermore, the presented model enables the analysis of any parameters in the system, and as an example, the influence of dampings on shimmy is investigated.

Original languageEnglish
Pages (from-to)259-266
Number of pages8
JournalProcedia IUTAM
Volume22
DOIs
Publication statusPublished - Jan 1 2017
EventIUTAM Symposium on Nonlinear and Delayed Dynamics of Mechatronic Systems, IUTAM Symposia 2016 - Nanjing, China
Duration: Oct 17 2016Oct 21 2016

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Electric vehicles
Tires
Wheels
Damping
Computer simulation

Keywords

  • damping
  • electric vehicle
  • independent suspension
  • shimmy

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Model Establishment and Parameter Analysis on Shimmy of Electric Vehicle with Independent Suspensions. / Mi, Tian; Stepan, Gabor; Takacs, Denes; Chen, Nan; Zhang, Ning.

In: Procedia IUTAM, Vol. 22, 01.01.2017, p. 259-266.

Research output: Contribution to journalConference article

Mi, Tian ; Stepan, Gabor ; Takacs, Denes ; Chen, Nan ; Zhang, Ning. / Model Establishment and Parameter Analysis on Shimmy of Electric Vehicle with Independent Suspensions. In: Procedia IUTAM. 2017 ; Vol. 22. pp. 259-266.
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