Title: Optimal design and experimental research on a new HEMA with energy reduction for vehicle suspension systems

Authors: Renkai Ding; Ruochen Wang; Xiangpeng Meng; Long Chen

Addresses: Automotive Engineering Research Institute, Jiangsu University, No. 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu, China ' School of Automotive and Traffic Engineering, Jiangsu University, No. 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu, China ' Automotive Engineering Research Institute, Jiangsu University, No. 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu, China ' Automotive Engineering Research Institute, Jiangsu University, No. 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu, China

Abstract: Linear electromagnetic actuators (LEMAs) cannot balance energy regeneration or electric energy reduction and the dynamic performance of suspension systems. A novel hybrid electromagnetic actuator (HEMA) integrating a linear motor and a hydraulic damper is designed to address this problem. On the basis of the preliminary determination of the design and constraints of the HEMA, a modified skyhook control is used as the control method, and performance parameters are optimised for different road conditions. An urban road condition is used as an example, the performance requirement that should be achieved in this driving condition is considered the optimisation goal of the structural parameter, and the theoretically achievable performance of a HEMA is obtained. Then, a prototype is developed for characteristic and dynamic control tests. Results show that the HEMA can ensure dynamic performance while recovering vibration energy in contrast to LEMAs.

Keywords: HEMA; hybrid electromagnetic actuator; vibration energy regeneration/electric energy reduction; dynamic performance; optimal design; experimental research.

DOI: 10.1504/IJVD.2023.134723

International Journal of Vehicle Design, 2023 Vol.93 No.1/2, pp.66 - 86

Accepted: 30 Nov 2021
Published online: 09 Nov 2023 *

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