Abstract:By combining prescribed performance and finite-time control, an adaptive finite-time tracking control method is proposed for a class of nonaffine nonlinear systems with dead zones. Based on the Backstepping technology, the fuzzy logic system and the finite-time Lyapunov stability theory, the sufficient conditions for the semi-global practical finite-time stable(SGFPS) and design steps are given. The control strategy can maintain that the output error converges to the predefined region in a finite time, as well as guarantee that the prescribed performance are achieved, such as the convergence speed, the maximum overshoot and the steady-error. Finally, a simulation example is given to illustrate the effectiveness of the proposed method.