학술논문
Robust Arbitrary-Time Path-Tracking Control Using Reduced Order Kinematic Model for Unmanned Ground Vehicles
Document Type
Periodical
Source
IEEE Transactions on Intelligent Transportation Systems IEEE Trans. Intell. Transport. Syst. Intelligent Transportation Systems, IEEE Transactions on. 25(5):4089-4101 May, 2024
Subject
Language
ISSN
1524-9050
1558-0016
1558-0016
Abstract
In this paper, we propose a robust arbitrary-time path tracking control using reduced order kinematic model for the unmanned ground vehicle. The proposed method consists of the robust arbitrary-time convergence control and fixed-time super-twisting observer for the kinematic model, and the fixed-time super-twisting controller of the dynamic model. To apply the robust arbitrary-time convergence control to the unmanned ground vehicle, the reduced order kinematic model is developed to move the sensor location to the origin through coordinate transformation. The robust arbitrary-time convergence control is designed to obtain the arbitrary-time convergence and the robustness for the kinematic model. When the tracking errors exceed the predefined error boundary after the predefined arbitrary-time, the tracking errors can converge to zero within predefined arbitrary-time by the switching rule. The fixed-time super-twisting observer is designed to estimate the lumped disturbance for the kinematics model. The fixed-time super-twisting controller is developed for the dynamic model.