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Shock and Vibration
Volume 2017 (2017), Article ID 3186584, 12 pages
Research Article

Design, Modeling, and Analysis of a Novel Hydraulic Energy-Regenerative Shock Absorber for Vehicle Suspension

Junyi Zou,1,2,3 Xuexun Guo,1,2,3 Lin Xu,1,2,3 Gangfeng Tan,1,2,3 Chengcai Zhang,1,2,3 and Jie Zhang4

1School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
2Hubei Key Laboratory of Advanced Technology of Automotive Components, Wuhan University of Technology, Wuhan 430070, China
3Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan 430070, China
4Technology Center, Wanxiang Group Corporation, Hangzhou 311215, China

Correspondence should be addressed to Lin Xu; nc.ude.tuhw@805nilux

Received 13 February 2017; Revised 31 May 2017; Accepted 21 June 2017; Published 8 August 2017

Academic Editor: Carlo Trigona

Copyright © 2017 Junyi Zou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


To reduce energy consumption or improve energy efficiency, the regenerative devices recently have drawn the public’s eyes. In this paper, a novel hydraulic energy-regenerative shock absorber (HERSA) is developed for vehicle suspension to regenerate the vibration energy which is dissipated by conventional viscous dampers into heat waste. At first, the schematic of HERSA is presented and a mathematic model is developed to describe the characteristic of HERSA. Then the parametric sensitivity analysis of the vibration energy is expounded, and the ranking of their influences is . Besides, a parametric study of HERSA is adopted to research the influences of the key parameters on the characteristic of HERSA. Moreover, an optimization of HERSA is carried out to regenerate more power as far as possible without devitalizing the damping characteristic. To make the optimization results more close to the actual condition, the displacement data of the shock absorber in the road test is selected as the excitation in the optimization. The results show that the RMS of regenerated energy is up to 107.94 W under the actual excitation. Moreover it indicates that the HERSA can improve its performance through the damping control.