Adaptive sliding control of non-autonomous active suspension systems with time-varying loadings
作者： Po-Chang Chen , An-Chyau Huang
DOI: 10.1016/J.JSV.2004.03.055
关键词: Control theory 、 Active suspension 、 Engineering 、 Basis function 、 Function approximation 、 Position (vector) 、 Control theory 、 Adaptive control 、 Unsprung mass 、 Coordinate system
摘要: An adaptive sliding controller is proposed in this paper for controlling a non-autonomous quarter-car suspension system with time-varying loadings. The bound of the car-body loading assumed to be available. Then, reference coordinate placed at static position under nominal so that dynamic equation derived. Due spring nonlinearities, property becomes asymmetric after transformation. Besides, practical cases, parameters are not easy obtained precisely design. Therefore, paper, uncertainties lumped into two unknown functions. Since variation one functions available, conventional schemes and robust designs applicable. To deal problem, function approximation technique employed represent as finite combination basis Lyapunov direct method can thus used find laws updating coefficients approximating series prove stability closed-loop system. velocity measurements unsprung mass function, there no need install sensors on axle wheel assembly actual implementation. Simulation results presented show performance strategy.
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