Title
Design and control of a hydraulic-actuated leg exoskeleton for load-carrying augmentation
Abstract
For the research on control method of leg exoskeleton for carrying payload, a leg exoskeleton prototype called ELEBOT (ECUST Leg Exoskeleton roBOT) has been built. To increase the load-carrying ability of exoskeleton, pseudo-anthropomorphic mechanical structure, a kind of efficient, low-flow pump-valve hybrid controlled hydraulic actuator, custom sensing shoes and other electrical components for control have been developed. A knee torque estimate algorithm based on GRF (ground reaction force) was applied to ELEBOT via a hydraulic direct force feedback PD controller. Experiments indicated ELEBOT could support itself and 30 kg additional payload with above control method when it was walking at a speed up to 3.2 km/h while following the operator's maneuvers. These results indicate the control method discussed in this work is valid.
Year
DOI
Venue
2010
10.1007/978-3-642-16584-9_57
ICIRA (1)
Keywords
Field
DocType
leg exoskeleton prototype,load-carrying augmentation,pd controller,control method,kg additional payload,ecust leg exoskeleton robot,hydraulic actuator,hydraulic-actuated leg exoskeleton,electrical component,leg exoskeleton,hydraulic direct force feedback,ground reaction force,force feedback,low flow
Torque,Servo,PID controller,Control theory,Simulation,Control engineering,Ground reaction force,Exoskeleton,Engineering,Haptic technology,Payload,Hydraulic cylinder
Conference
Volume
ISSN
ISBN
6424
0302-9743
3-642-16583-4
Citations 
PageRank 
References 
1
0.37
6
Authors
6
Name
Order
Citations
PageRank
Heng Cao172.07
Jun Zhu231.41
Chunming Xia32410.70
Hong Zhou410.37
Xiao Chen510.37
Yu Wang651.67