Title
A passivity based control signal guaranteeing joint limit avoidance in redundant robots
Abstract
In this work we propose a torque control signal that guarantees joint limit avoidance of a redundant arm. Its design is based on the prescribed performance control methodology that enables guarantees on the satisfaction of inequality constraints regarding the system output. It is proved that the proposed signal preserves the passivity of closed loop robot dynamics with respect to joint velocities thus allowing its use with any passive control law designed to attract the robot towards a task goal. Experimental results with a KUKA LWR4+ for a task involving the tip's position motion along a linear path confirm theoretical findings and demonstrate the proposed signal's performance in two scenarios of a feasible and an unfeasible path.
Year
DOI
Venue
2016
10.1109/MED.2016.7535862
2016 24th Mediterranean Conference on Control and Automation (MED)
Keywords
Field
DocType
passivity based control signal,joint limit avoidance,redundant robots,torque control signal,redundant arm,inequality constraint satisfaction,closed loop robot dynamics,KUKA LWR4+,tip position motion
Passivity,Performance control,Torque,Control theory,Computer science,Passive control,Control engineering,Robot
Conference
ISSN
ISBN
Citations 
2325-369X
978-1-4673-8347-9
0
PageRank 
References 
Authors
0.34
17
3
Name
Order
Citations
PageRank
Dimitrios G. Papageorgiou1316.93
Abdelrahem Atawnih2191.94
Zoe Doulgeri333247.11