Observer-based dynamic walking control for biped robots

被引:79
作者
Czarnetzki, Stefan [1 ]
Kerner, Soeren [1 ]
Urbann, Oliver [1 ]
机构
[1] TU Dortmund Univ, Robot Res Inst, Sect Informat Technol, Dortmund, Germany
关键词
Humanoid robot; Biped walking; Preview controller; ZMP;
D O I
10.1016/j.robot.2009.03.007
中图分类号
TP [自动化技术、计算机技术];
学科分类号
080201 [机械制造及其自动化];
摘要
This article presents a novel observer-based control system to achieve reactive motion generation for dynamic biped walking. The proposed approach combines a feedback controller with an online generated feet pattern to assure a stable gait. Using the desired speed of the robot, a preview control system derives the dynamics of the robot's body, and thereby the trajectory of its center of mass, to ensure a zero moment point (ZMP) movement, which results in a stable execution of the calculated step pattern. Extending the control system by an observer, based on this knowledge and the measured sensor values, compensates for errors in the model parameters and disturbances encountering while walking. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:839 / 845
页数:7
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