Active Omnidirectional Wheel with Dual-Rings Based on Cross Helical Gear Mechanism

– Facilitation of the Diagonal Direction Movement –

Abstract

In this paper, the control method which can move in the diagonal direction for active omni-directional wheel mechanism with dual-rings is proposed. Active dual-ring wheel with high performance on step traverse had been developed. However, it was difficult for this mechanism to move in the diagonal direction because a rotation direction of the ring wheel is reversed at constant period of the wheel. Thus, the authors proposed a control method for diagonal direction movement. Next, the wheel path was simulated to confirm the validity of the proposed method. Finally, the effectiveness of proposed control method was verified by experiments.