Title: Torsional vibration characteristics of a power-split hybrid system

Authors: Xiaolin Tang; Jianwu Zhang; Haisheng Yu; Zou Liang

Addresses: School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Maple Automobile Co. Ltd., Shanghai 201501, China ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract: A torsional vibration dynamic model is built to predict the torsional vibration characteristics of a power-split hybrid system. On the basis of this dynamic model, the system dynamic equations of hybrid driveline are set, from which the natural frequencies and relevant mode shapes under different driving modes are solved using the corresponding eigenvalue problem. The calculated results show that the low frequencies occur mainly in the torsional vibration of wheels and vehicle, the intermediate frequencies are relevant to the torsional vibration of the sun gears, the differential and the reducer, in general, and the high frequencies are related to the torsional vibration of planets.

Keywords: HEV; hybrid electric vehicles; power split; hybrid vehicles; torsional vibration; natural frequency; multi-body dynamics; dynamic modelling.

DOI: 10.1504/IJEHV.2013.056294

International Journal of Electric and Hybrid Vehicles, 2013 Vol.5 No.2, pp.108 - 122

Received: 06 Dec 2012
Accepted: 19 Feb 2013

Published online: 09 Sep 2013 *

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