This paper presents a novel approach to acquire dynamic whole-body movements on humanoid robots focused on learning a control policy for the center of mass. A policy-gradient method is used to acquire a CoM movement as a control policy for achieving a desired dynamic task. A CoM-Jacobian-based redundancy resolution is then used to compute angular velocities for all joints in order to achieve a whole-body movement consistent with the CoM movement acquired through learning. To demonstrate the effectiveness of our method, we apply it in simulation to the learning of a strong punching movement on the Fujitsu humanoid robot, Hoap-2.
['Takamitsu Matsubara', 'Jun Morimoto', 'Jun Nakanishi', 'Sang-Ho Hyon', 'Joshua G. Hale', 'Gordon Cheng']
Learning to acquire whole-body humanoid CoM movements to achieve dynamic tasks