Title
Development of Kalman Filter based two-port Body Force Observer for the flexible joint: Design and experiments
Abstract
One of the main reasons for using a joint torque sensor in a robot is to measure body forces acting on the system. Especially, the motor actuating torque and the external link torque are important for a flexible joint control. However, it is difficult to measure or estimate those two torques simultaneously with a single joint torque sensor only due to the lack of information. In this paper, Kalman Filter based two-port Body Force OBserver(KF 2-port BFOB) was proposed to estimate two output torques from the motor-side port and the link-side port simultaneously using the two-port system dynamics, the joint angle and the sensor torque from the joint torque sensor based on the Kalman filter. The basic idea of KF 2-port BFOB is illustrated and its performance is verified by implementing the algorithm with disturbance observer(DOB) in the motor actuated one-DOF flexible joint robot. The experiments are executed in the planar situation (under the gravity-free condition) and in the vertical situation(under the gravity condition) respectively to verify the performance of KF 2-port BFOB. The results show something with conclusion.
Year
DOI
Venue
2012
10.1109/ICRA.2012.6225384
ICRA
Keywords
Field
DocType
observers,link-side port,kalman filters,joint torque sensor,external link torque,joint angle,motor-side port,two-port system dynamics,motor actuated one-dof flexible joint robot,kf 2-port bfob,flexible joint control,manipulators,motor actuating torque,sensors,kalman filter based two-port body force observer,kalman filter,system dynamics,friction,force,torque
Body force,Torque,Torque sensor,Control theory,Kalman filter,Control engineering,Planar,System dynamics,Engineering,Observer (quantum physics),Robot
Conference
ISSN
ISBN
Citations 
1050-4729 E-ISBN : 978-1-4673-1404-6
978-1-4673-1404-6
0
PageRank 
References 
Authors
0.34
6
4
Name
Order
Citations
PageRank
Young Jin Park1239.10
Hosun Lee2104.66
Yong-Hwan Oh317531.08
Wan Kyun Chung4855127.85