International Journal of Applied Science and Engineering

Published by Chaoyang University of Technology

Tuan Anh Nguyen*

Automotive Engineering Department, Thuyloi University, Hanoi, Vietnam


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When the vehicle moves, the bump on the road surface is the main factor affecting the vehicle's stability. It produces non-cyclic oscillations and causes a feeling of discomfort and fatigue for passengers. The suspension system of the vehicle is used to regulate and reduce these negative effects. In order to improve vehicle stability and comfort, the active suspension is used to replace the conventional passive suspension system. There are many methods to control the suspension system, each with its advantages and disadvantages. This article focuses on the introduction and establishment of the sliding mode controller for the active suspension system. The results of the study show that when the vehicle is equipped with an active suspension system that is controlled by a sliding mode controller, the values ​​of displacement and acceleration of the sprung mass are significantly reduced. Therefore, the vehicle's stability and comfort are also greatly improved. Besides, the sliding mode controller is very stable to the change of the impact factors. However, this method is more difficult and complex than the use of conventional linear methods.

Keywords: Active suspension system, Sliding mode control, Comfortable, Sprung mass.

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Received: 2020-02-16
Revised: 2020-04-26
Accepted: 2021-05-08
Publication Date: 2021-09-01

Cite this article:

Nguyen, T.A. 2021. Study on the sliding mode control method for the active suspension system. International Journal of Applied Science and Engineering. 18, 2021069.

  Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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