电 子 节 气 门 的 连 续 非 奇 异 终 端 滑 模 控 制

In order to solve the problems of the chattering and signal derivation for the traditional sliding mode control（SMC）approach，a novel continuous non-singular terminal sliding approach is proposed to realize the angle control of electronic throttles（ET）. Based on the mathematical model of the ET system，its control performance is improved in the aspect of sliding surface and control law. During the design of the sliding surface， the finite-time convergence can be achieved by introducing the power index terms concerning the system states. Meanwhile，it removes the constraint condition of the controller parameter for the traditional SMC approach. During the design of the control law，a continuous control law can be achieved by introducing the low pass filtering in the premise of the system stability. Meanwhile，it solves the problem of signal derivation of system states. Comparative study and simulations with the traditional first-order SM and second-order SM proves the superiorities of the proposed approach in chattering elimination，fast response and control accuracy.