Barrier Function-Based Adaptive Sliding Mode Control for Application to Vehicle Suspensions
- 9 December 2020
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Transportation Electrification
- Vol. 7 (3), 2023-2033
- https://doi.org/10.1109/tte.2020.3043581
Abstract
A barrier function-based adaptive sliding mode control strategy is proposed for the vehicle active suspension system in this paper. The barrier-functions-based adaptive law is applied to design the sliding mode controller, which can ensure the finite time convergence of the suspension system. Meanwhile, the proposed adaptive law can achieve greatly chattering reduction without requiring the prior information of the upper bound of system uncertainties. Furthermore, the time-delay estimation technique is applied to design the simple and efficient model-free controller. Therefore, the proposed controller has the strong robustness against the nonlinearities and uncertainties of the active suspension system, and it is very practical in actual scenarios. In addition, considering the transient and steady-state performance of the active suspension system, a prescribed performance function is adopted to constrain the vehicle displacement with its convergence rate, maximum overshoot and steady-state value. Finally, compared with the conventional sliding mode control and PD control, comparative experiments of a quarter-car active suspension platform are performed to verify the effectiveness of the proposed strategy.Keywords
Funding Information
- National Natural Science Foundation of China (61803120, 61790562, U1964201)
- Higher Education Discipline Innovation Project (B16014)
- China Postdoctoral Science Foundation (2019T120270, 2018M630358)
- Heilongjiang Province Science Foundation (LH2019F019)
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