Department of Mechanical Engineering, Shandong University of Technology, Zibo, China

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Abstract—The traditional PID control approach is often adopted in CNC machine tool position controller. The approach is simple and easy to implement, but can’t achieve rapid adjustment and less overshoot at the same time. Consequently, on the basis of analyzing fuzzy control theory and design method, the CNC machine tool fuzzy PID position control approach is developed in the paper. The approach makes full use of the advantages of fuzzy control and PID control. The experiment results show that in contrast to traditional PID position controller, the developed approach can achieve better rapidity, shorter adjust time and satisfied overshoot. It is much significant to highprecision CNC machining.

Index Terms—fuzzy PID position control, membership function, fuzzy control rule, adjust time, overshoot

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Cite: Guoyong Zhao, Yong Shen, and Youlin Wang, " Fuzzy PID Position Control Approach in Computer Numerical Control Machine Tool," Journal of Computers vol. 8, no. 3, pp. 622-629, 2013.