Pushing motion of humanoid robot on dynamic locomotion

This paper describes the pushing motion of a humanoid robot. It is difficult to achieve a pushing motion at constant velocity of an object since the body velocity fluctuates during the dynamic walking. Furthermore, the analysis of walking stability becomes complicated with the pushing force. We constructed a humanoid control system that is separated to an upper body controller and a lower body controller. The upper body concentrates on the force control with a constant command. The lower body deals with the biped locomotion and is controlled so that the object is within range of the arm movement. This combination of two separated controllers solves the in the pushing motion of humanoid robots. Simulation results show that the pushing motion with constant velocity of the object was achieved.

[1]  Toshiyuki Murakami,et al.  A walking pattern generation for biped robot with parallel mechanism by considering contact force , 2001, IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243).

[2]  Atsushi Konno,et al.  Whole body cooperative tasks and static stability evaluations for a humanoid robot , 2003, Proceedings 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003) (Cat. No.03CH37453).

[3]  Shuuji Kajita,et al.  Study of dynamic biped locomotion on rugged terrain-derivation and application of the linear inverted pendulum mode , 1991, Proceedings. 1991 IEEE International Conference on Robotics and Automation.

[4]  Atsuo Kawamura,et al.  Simulation of an autonomous biped walking robot including environmental force interaction , 1998, IEEE Robotics Autom. Mag..

[5]  Shuuji Kajita,et al.  Pushing manipulation by humanoid considering two-kinds of ZMPs , 2003, 2003 IEEE International Conference on Robotics and Automation (Cat. No.03CH37422).

[6]  Toshiyuki Murakami,et al.  Variable Compliance Control for 3 Dimensional Biped Robot considering Environmental Fluctuations , 1999 .

[7]  Tatsuo Arai,et al.  Mobile manipulation of humanoid robots-optimal posture for generating large force based on statics , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).