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The control problem of a class of uncertain nonlinear systems which is with state delay and actuator dead-zone together is studied in this paper. The controller is derived step by step through a backstepping procedure, where an adaptive fuzzy logic system is employed to approximate the unknown functions encountered. By introducing hyperbolic tangent functions, both the effects of state delay and the...
A control method based on adaptive fuzzy approximation is proposed in this paper to realize the tracking control problem for a class of symmetric dead-zone nonlinear systems. By decomposing the dynamics of dead-zone, a control law is derived by imbedding fuzzy approximators into backstepping steps. The proposed method is applicable to high-order nonlinear systems, and the controlled systems are not...
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