Articles | Volume 15, issue 1
Research article
13 Feb 2024
Research article |  | 13 Feb 2024

Sliding mode control of electro-hydraulic servo system based on double observers

Xiaoyu Su and Xinyu Zheng

Related subject area

Subject: Dynamics and Control | Techniques and Approaches: Mathematical Modeling and Analysis
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Cited articles

Cheng, C., Liu, S. Y., and Wu, H. Z.: Sliding mode observer-based fractional-order proportional–integral–derivative sliding mode control for electro-hydraulic servo systems, P. Institut. Mechan. Eng. Part C, 234, 1887–1898,, 2020. 
Du, H., Shi, J. J., Chen, J. D., Zhang, Z. Z., and Feng, X. Y.: High-gain observer-based integral sliding mode tracking control for heavy vehicle electro-hydraulic servo steering systems, J. Mechatronics, 74, 102484,, 2021. 
Feng, L. J. and Yan, H.: Nonlinear adaptive robust control of the electro-hydraulic servo system, J. Appl. Sci., 10, 4494,, 2020. 
Feng, H., Song, Q. Y., Ma, S. L.,Ma, W., Yin, C. B., Cao, D. H., and Yu, H. F.: A new adaptive sliding mode controller based on the RBF neural network for an electro-hydraulic servo system, J. ISA Trans., 129, 472–484,, 2022. 
Guo, Q., Yu, T., and Jiang, D.: Robust H positional control of 2-DOF robotic arm driven by electro-hydraulic servo system, J. ISA Trans., 59, 55–64,, 2015. 
Short summary
An electro-hydraulic servo system has the characteristics of high control accuracy and fast response so it is widely used in industrial control fields. To address the external load and disturbance problems faced in actual engineering, a dual observer is used to acquire the state and disturbance values and to provide the sliding mode controller to control the system in real time. Comparative simulations are conducted to verify the impact of the control method on the control accuracy.