Physical human-robot interaction force control method based on adaptive variable impedance

被引：26
|
作者：
Dong, Jianwei [1 ]
Xu, Jianming [1 ]
Zhou, Qiaoqian [1 ]
Hu, Songda [1 ]
机构：
[1] Zhejiang Univ Technol, Coll Informat Engn, 288 Liuhe Rd, Hangzhou 310023, Zhejiang, Peoples R China
来源：
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS | 2020年 / 357卷 / 12期
基金：
中国国家自然科学基金;
关键词：
MANIPULATORS; INTERNET; TRACKING;
D O I：
10.1016/j.jfranklin.2020.06.007
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This study presents a method for extracting the actual interaction force from a force sensor signal by measuring the gravity of the end-effector. The variable impedance control problem of commercial industrial robots is studied, to investigate the uncertain contact impedance characteristics between the human palm and a robot end-effector in the physical human-robot interaction process. A speed-based variable impedance adaptive interaction control method is proposed. The damping parameters of the admittance controller are adaptively adjusted according to the interactive force tracking error. The desired speed of the robot is also given, which is tracked in the Cartesian space speed mode of a Staubli TX-90 robot to achieve interactive force control. An experimental comparison is made between the control strategies of the constant impedance and adaptive variable impedance. The experimental results show that the proposed method is effective. (c) 2020PublishedbyElsevierLtdonbehalfofTheFranklinInstitute.
引用
收藏
页码：7864 / 7878
页数：15
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