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All Journal IAES International Journal of Robotics and Automation (IJRA)
Ong, Jun Kit
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Automotive Engineering Electrical & Electronics Engineering

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Vibration control of semi-active suspension system using super-twisting sliding mode controller Sun, Liuding; Ahmad, Siti Azfanizam; Ong, Jun Kit; Hanapi, Suhadiyana; As'arry, Azizan
IAES International Journal of Robotics and Automation (IJRA) Vol 15, No 1: March 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijra.v15i1.pp171-180

Abstract

The development of suspension systems arises from the impact of vehicle vibrations caused by road irregularities on passengers. Among various suspension systems, semi-active suspension (SAS) is favored for its cost-effectiveness and power efficiency. Magnetorheological (MR) dampers are commonly used in SAS to enhance vibration control by adjusting the magnetic field. However, the traditional sliding mode control (SMC) method often causes chattering, which affects performance. This study proposes the application of a super-twisting sliding mode controller (STSMC) to improve vibration control in SAS and overcome the chattering problem. Simulations and experimental evaluations were conducted on a quarter-car test bench with different road excitations. The results show that the STSMC-based system outperforms the traditional controller in vibration suppression. Specifically, the suppression effect on the root mean square value of body acceleration on a sinusoidal road surface can reach up to 38.2%. Therefore, the STSMC controller demonstrates superior vibration control in SAS systems equipped with MR dampers, providing a valuable reference for future research on SAS vibration control.
Co-Authors Ahmad, Siti Azfanizam As'arry, Azizan Hanapi, Suhadiyana Sun, Liuding