Research on Vibration Control and Energy Study of Vehicle Electromagnetic Suspension Based on Sliding Mode Control

Author:

Zhou Xiangru1,Liu Pengfei2,Ning Donghong1,Yu Jianqiang3,Du Haiping4

Affiliation:

1. Ocean University of China, College of Engineering

2. Ocean University of China

3. China Nanhu Academy of Electronics and Information Technolog

4. University of Wollongong, Faculty of Engineering and Informa

Abstract

<div class="section abstract"><div class="htmlview paragraph">This article proposes an electromagnetic damper (EMD) based on a ball screw mechanical structure actuator. To prove the damping effect of the new damper proposed in this paper. In this paper, the EMD suspension is validated on a quarter vehicle suspension. A mathematical model of quarter vehicle suspension is developed and a sliding mode variable structure controller is designed. This sliding mode controller enables vibration control of the suspension and improves ride comfort. To make the EMD track the ideal current effectively, a variable resistance circuit that can change the electromagnetic damping force is proposed to achieve the graded adjustment of resistance. A semi-active vehicle vibration control strategy was designed, and experiments were conducted using a quarter-vehicle test platform to verify the vibration-damping performance of this EMD suspension. The energy transfer to the road was analyzed and the higher the variable resistance, the more energy is transferred to the vehicle. The experimental results show that the EMD suspension reduces the acceleration RMS by 25.53 %, 23.57 % and 16.48 % under sinusoidal, bump and random road conditions, respectively, compared to the passive suspension. This ensures that the dynamic travel of the suspension and the dynamic loading of the tire is within reasonable limits. The energy of the road surface, the energy consumed by the EMD, the energy transferred to the tire and the energy of the vehicle were also analysed. The experimental results show that the lower the resistance in the EMD circuit, the less energy is transferred to the vehicle, and that the EMD suspension reduces the energy transferred from the road surface to the vehicle by 8 % compared to the passive suspension under random road conditions. The experiment proves that it greatly improves the comfort of the vehicle while ensuring the stability of vehicle control.</div></div>

Publisher

SAE International

Reference10 articles.

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2. Aboud , W.S. , Haris , S.M. , and Yaacob , Y. Advances in the Control Of Mechatronic Suspension Systems Journal of Zhejiang University Science C 15 10 2014 10.1631/jzus.C14a0027

3. Changmiao , Y. , Weihua , W. , Rakheja , S. , and Qingnian , W. Experimental Testing and Analysis of a Prototype Double Overrunning Clutch Type Electromagnetic Energy-Feeding Damper Journal of Jilin University (Engineering Edition) 42 02 2012 292 297 10.13229/j.cnki.jdxbgxb2012.02.027

4. Suda , Y. , Nakadai , S. , Nakano , K. , Tsunashima , H. et al. Study on the Self-Powered Active Vibration Control: Application to Random Vibration and a Cab Suspension of a Truck The Japan Society of Mechanical Engineers 64 628 1998 10.1299/kikaic.64.4770

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