External Force Estimation Using Joint Torque Sensors and Its Application to Impedance Control of a Robot Manipulator

被引：0
|
作者：
Phong, Le Dinh [1 ,2 ]
Choi, Lunho [1 ]
Kang, Sungchul [1 ]
机构：
[1] Korea Inst Sci & Technol, Ctr Bion, Seoul 136120, South Korea
[2] Univ Sci & Technol, Dept HCI & Robot, Taejon 305333, South Korea
来源：
2013 13TH INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND SYSTEMS (ICCAS 2013) | 2013年
关键词：
Force Estimation; Uncertainty Dynamics; Impedance Control;
D O I：
暂无
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 paper proposes an algorithm to estimate external forces exerted on the end-effector of a robot manipulator using information from joint torque sensors (JTS). The algorithm is the combination of Time Delay Estimation (TDE) and input estimation technique where the external force is considered as an unknown input to the robot manipulator. Based on TDE's idea, the estimator which does not require an accurate dynamics model of the robot manipulator is developed. The simultaneous input and state estimation (SISE) is used to reduce not only nonlinear uncertainties of the robot dynamics but also the noise of measurements. The performance of the proposed estimation algorithm is evaluated through an application to impedance control of a four degree-of-freedom manipulator.
引用
收藏
页码：1794 / 1798
页数：5
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