Title
Neural Network Adaptive Output-Feedback Optimal Control for Active Suspension Systems
Abstract
The adaptive neural network (NN) output-feedback optimal control issue has been investigated for a quarter-car active electric suspension systems, where the suspension stiffness is unknown and partial state variables are unavailable for measurement. NNs are utilized to identify unknown nonlinearities, and an NN state observer is devised to estimate the unmeasurable states. For each backstepping step, via reinforcement learning (RL), a critic–actor architecture is designed to get the approximation solution of Hamilton–Jacobi–Bellman (HJB) equations and actual and virtual optimization controllers are designed, in which the input saturation constraint and road interference are considered. It is analytically proved that all controlled system signals remain bounded, while the power of the control input signal, as well as the amplitude of the vertical displacement, has been minimized. A comparative simulation is eventually given to elaborate the feasibility of the developed control algorithm.
Year
DOI
Venue
2022
10.1109/TSMC.2021.3089768
IEEE Transactions on Systems, Man, and Cybernetics: Systems
Keywords
DocType
Volume
Adaptive dynamic programming (ADP),output-feedback optimal control,state observer,suspension dynamics
Journal
52
Issue
ISSN
Citations 
6
2168-2216
0
PageRank 
References 
Authors
0.34
19
4
Name
Order
Citations
PageRank
Yongming Li14931147.76
Tiechao Wang2566.80
Wei Liu313243.16
Shaocheng Tong48625289.74