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Robust Backstepping Super-Twisting Sliding Mode Control for Autonomous Vehicle Path following
Ao, Di1; Huang, Wei2; Wong, Pak Kin1; Li, Jialin3
2021-09-03
Source PublicationIEEE Access
ISSN2169-3536
Volume9Pages:123165-123177
Abstract

This paper focuses on the path following control problems for autonomous driving vehicles. Aiming at enhancing the robustness and attenuating the chattering phenomenon, a super-twisting sliding mode control algorithm (STA) is developed based on Lyapunov theory, where the proof of the stability of the control system is presented by applying the backstepping technique. Moreover, co-simulation between Matlab/Simulink and Carsim is carried out to verify the path following control performance. In this research, Stanley controller, conventional sliding mode control (SMC), and model predictive control (MPC) are used as the benchmark controllers for evaluating the proposed STA performance. Two driving scenarios are considered in the simulations, including normal driving and fierce driving. To comprehensively assess the control performance and control effort (i.e. magnitude of steering), an integrated and weighted performance evaluation index \left ({IWPEI }\right) is novelly provided. Simulation results show that the IWPEI of the proposed STA can be reduced by 40.5%, 25.8%, 10.9% in the normal driving scenario; and 62.5%, 24%, 6.8% in the fierce driving scenario as compared with Stanley controller, conventional SMC, and MPC, respectively. The results also indicate that the proposed STA outperforms the conventional SMC in terms of the chattering attenuation, resulting in a smoother front steering wheel angle input and a smoother yaw rate performance. As compared with MPC, the advantage of the proposed STA lies in its much lower computational complexity. Furthermore, the robustness of the controllers is verified by changing the vehicle mass and tire parameters. The proposed STA can reduce the fluctuation of the IWPEI by 22.6%, 22.3%, and 5.9% compared with the benchmark approaches. These results imply that the consideration of system perturbations is very critical in the design of the super-twisting sliding mode controller which can improve the robustness of the autonomous vehicle path following system.

KeywordBackstepping Path Following Control Perturbations Robustness Super-twisting Sliding Mode
DOI10.1109/ACCESS.2021.3110435
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaComputer Science ; Engineering ; Telecommunications
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000696067200001
Scopus ID2-s2.0-85114744083
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Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Faculty of Science and Technology
Corresponding AuthorHuang, Wei; Wong, Pak Kin
Affiliation1.Department of Electromechanical Engineering, University of Macau, 999078, Macao
2.School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
3.School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006, China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Ao, Di,Huang, Wei,Wong, Pak Kin,et al. Robust Backstepping Super-Twisting Sliding Mode Control for Autonomous Vehicle Path following[J]. IEEE Access, 2021, 9, 123165-123177.
APA Ao, Di., Huang, Wei., Wong, Pak Kin., & Li, Jialin (2021). Robust Backstepping Super-Twisting Sliding Mode Control for Autonomous Vehicle Path following. IEEE Access, 9, 123165-123177.
MLA Ao, Di,et al."Robust Backstepping Super-Twisting Sliding Mode Control for Autonomous Vehicle Path following".IEEE Access 9(2021):123165-123177.
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