为了削弱控制器所带来的抖振，运用模糊逻辑理论对控制器的不连续项进行了修正，从而得到了一种新的基于模糊逻辑的变结构控制器。

To weaken the chatter from the controller, the theory of fuzzy logic was used to modify the discontinuous term. Based on fuzzy logic, a variable structure controller was gotten.

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所提出的近似自适应变结构控制器可以避免控制器中的不连续继电项，同时不必已知系统不确定性范数界。

Then, the normal variable structure controller (VSC) and the adaptive variable structure controller with the estimation for the upper norms of uncertainties are presented.

youdao

所提出的近似自适应变结构控制器可以避免控制器中的不连续继电项，同时不必已知系统不确定性范数界。

Then, the normal variable structure controller (VSC) and the adaptive variable structure controller with the estimation for the upper norms of uncertainties are presented.

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