论文标题
使用类人形机器人进行跳跃的扭矩和速度控制器:ICUB机器人的理论和实现
Torque and velocity controllers to perform jumps with a humanoid robot: theory and implementation on the iCub robot
论文作者
论文摘要
跳跃可以是克服小地形差距或障碍的有效运动方法。在本文中,我们提出了两种不同的方法,可以使用类人形机器人进行跳跃。具体而言,从预定义的COM轨迹开始,我们开发了速度控制器的理论和基于优化技术评估关节输入的优化技术的扭矩控制器。在模拟和人形机器人ICUB中,对控制器进行了测试。在模拟中,机器人能够使用两个控制器跳跃,而实际系统仅使用速度控制器跳跃。结果突出了控制质心动量的重要性,他们表明联合性能,即腿部和躯干关节的最大功率,以及低水平的控制性能是至关重要的,以实现可接受的结果。
Jumping can be an effective way of locomotion to overcome small terrain gaps or obstacles. In this paper we propose two different approaches to perform jumps with a humanoid robot. Specifically, starting from a pre-defined CoM trajectory we develop the theory for a velocity controller and for a torque controller based on an optimization technique for the evaluation of the joints input. The controllers have been tested both in simulation and on the humanoid robot iCub. In simulation the robot was able to jump using both controllers, while the real system jumped with the velocity controller only. The results highlight the importance of controlling the centroidal angular momentum and they suggest that the joint performances, namely maximum power, of the legs and torso joints, and the low level control performances are fundamental to achieve acceptable results.