Precise motion control for multi-axis system using real time forecast cross-coupling controller

A new method of forecast cross-coupling controller for multi-axis system is proposed in this paper. When compared with the conventional cross-coupling system, this new method has the advantages that the compensators in CCC have a simpler design process over the conventional ones and its real-time system parametric identification can improve the accuracy of the model more effectively. The proposed compensator is evaluated and compared experimentally with a traditional uncoupled controller on a dual-axis motion system. The experiment results show that the new method remarkably reduces the contour error.