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- Title
Evaluating the Efficacy of the Sliding Mode Algorithm for the Active Suspension System.
- Authors
Tuan Anh Nguyen
- Abstract
The active suspension system is installed in the car to improve the smoothness and comfortable ride while driving. In this paper, a quarter-dynamic model is utilized to describe the car's vibrations. The sliding mode control algorithm is proposed to control the operation of the suspension system. The problem's input signal is the excitation from the road surface, while the output signal includes values related to the acceleration and displacement of the vehicle body. In addition, the interaction between the wheel and the road surface, which is expressed through the change of dynamic force, is also considered. The numerical simulation is performed with a sinusoidal bump excitation signal. According to this result, the car body displacement was greatly reduced when using an active suspension controlled by the sliding mode method. The fluctuation of the unsprung mass is insignificant, so it does not affect the car's smoothness. This helps increase wheel stability and holding. The effect that the sliding mode algorithm brings to this study is positive.
- Subjects
SLIDING mode control; VIBRATION (Mechanics); DISPLACEMENT (Mechanics); MATLAB (Computer software); COMPUTER algorithms
- Publication
Advances in Systems Science & Applications, 2023, Vol 23, Issue 2, p115
- ISSN
1078-6236
- Publication type
Article