Title: Human vehicle dynamics coupling effect of miniature vehicle roll characteristic

Authors: Shuang Luo; Hong-yu Shu; Xian-bao Chen

Addresses: State Key Laboratory of Mechanical Transmission, Chongqing University, No. 174, Shangzhengjie Street, Shapingba District, Chongqing 400044, China ' State Key Laboratory of Mechanical Transmission, Chongqing University, No. 174, Shangzhengjie Street, Shapingba District, Chongqing 400044, China ' State Key Laboratory of Mechanical Transmission, Chongqing University, No. 174, Shangzhengjie Street, Shapingba District, Chongqing 400044, China

Abstract: In order to study the dynamics coupling effect between human and vehicle on the roll characteristics of miniature electric vehicle (MEV), firstly mathematical models for roll motion and stable steering of human-vehicle system were established, respectively. And then, virtual prototype models of driver and MEVs were built by ADAMS/Car. Finally, simulations were conducted. The influences of human-vehicle dynamics coupling effect (HVDCE) on roll characteristics of MEV with different curb weight were compared and analysed. Results show that the vehicle dynamics models with HVDCE exhibit the characteristic of lower equivalent roll angular stiffness and equivalent roll angular damping under transient excitation, and the characteristic of greater roll angular damping at low frequency excitation. Besides, the HVDCE will decrease natural frequency of roll motion. The greater the proportion of the driver mass to the curb weight is, the more obvious the effect of HVDCE on the roll characteristics will be.

Keywords: MEV; miniature electric vehicles; vehicle dynamics; human-vehicle coupling effect; roll characteristics; dynamic modelling; roll angle; resonance frequency; simulation; ADAMS/Car; mathematical modelling; virtual prototyping; curb weight; roll angular stiffness; roll angular damping; roll motion; vehicle roll; driver mass.

DOI: 10.1504/IJEHV.2016.078340

International Journal of Electric and Hybrid Vehicles, 2016 Vol.8 No.2, pp.97 - 108

Received: 24 Sep 2015
Accepted: 07 Dec 2015
Published online: 15 Aug 2016 *

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