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This paper presents a control strategy consisting of a fuzzy cross-coupled linear quadratic regulator (FCCLQR) and a feedforward (FF) compensator to improve the contour accuracy of bi-axis machine tools. The linear quadratic penalty function applied in the proposed controller includes the contour error, the tracking error and the control effort over a finite future time window. The time-varying feedback...
Recently, many researchers have devoted themselves to the study of methods of designing controllers for switched nonlinear systems with the use of the switched Takagi-Sugeno (T-S) fuzzy model. The main feature of switched T-S fuzzy models is that they characterize the local dynamics of each fuzzy rule by a linear model. The appeal of the switched T-S fuzzy model in control design is that the stability...
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