High-Accuracy Locomotion Control Method for Automatic Docking between Mobile Self-Reconfigurable Microrobots

A mobile self-reconfigurable microrobot actuated by MEMS-based electromagnetic micromotors is presented. Normal stepping control methods for electromagnetic micromotor are introduced. To improve the locomotion accuracy of the microrobot and the efficiency of automatic docking between them more, a Changeable Virtual Winding Method (CVWM) for high-accuracy microstepping control is developed. Experimental results demonstrate the feasibility of the concept.