Hybrid Formation Control for Non-Holonomic Wheeled Mobile Robots

This paper presents a hybrid formation controller approach for nonholonomic mobile robots. This approach is based on the stable switching between a leader-following formation controller and an orientation controller. The switching attempts to maintain low values of formation errors during specific leader movements that otherwise will produce a significant increment on such errors. Experimental results on commercial unicycle-like mobile robots are provided to show the feasibility and performance of the proposed control strategy.