Adaptive finite-time fault-tolerant controller for a class of uncertain MIMO nonlinear switched systems subject to output constraints and unknown input nonlinearities

2020 ◽  
Vol 35 ◽  
pp. 100821 ◽  
Author(s):  
Ali Moradvandi ◽  
Sayyed Alireza Malek ◽  
Mohammad Shahrokhi
Keyword(s):  
Finite Time ◽  
Switched Systems ◽  
Fault Tolerant ◽  
Unknown Input ◽  
Nonlinear Switched Systems ◽  
Output Constraints

Finite-Time Stabilization of a Class of Cascade Nonlinear Switched Systems

2016 ◽  
Vol 18 (6) ◽  
pp. 2352-2357 ◽  
Author(s):  
Qingyu Su ◽  
Xiaolong Jia ◽  
Honghai Liu
Keyword(s):  
Finite Time ◽  
Switched Systems ◽  
Nonlinear Switched Systems ◽  
Finite Time Stabilization

scholarly journals Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Jie Lan ◽  
Tongyu Xu
Keyword(s):  
Finite Time ◽  
Ride Comfort ◽  
Fault Tolerant ◽  
Design Procedure ◽  
Vertical Motion ◽  
Fault Tolerant Control ◽  
Active Suspension ◽  
Suspension Systems ◽  
Active Suspension Systems ◽  
Output Constraints

The problem of adaptive finite-time fault-tolerant control (FTC) and output constraints for a class of uncertain nonlinear half-vehicle active suspension systems (ASSs) are investigated in this work. Markovian variables are used to denote in terms of different random actuators failures. In adaptive backstepping design procedure, barrier Lyapunov functions (BLFs) are adopted to constrain vertical motion and pitch motion to suppress the vibrations. Unknown functions and coefficients are approximated by the neural network (NN). Assisted by the stochastic practical finite-time theory and FTC theory, the proposed controller can ensure systems achieve stability in a finite time. Meanwhile, displacement and pitch angle in systems would not violate their maximum values, which imply both ride comfort and safety have been enhanced. In addition, all the signals in the closed-loop systems can be guaranteed to be semiglobal finite-time stable in probability (SGFSP). The simulation results illustrate the validity of the established scheme.

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