Iterative Learning Algorithm Design for Variable Admittance Control Tuning of A Robotic Lift Assistant System

Paper #:
  • 2017-01-0288

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-0288
Citation:
Wu, H. and Li, M., "Iterative Learning Algorithm Design for Variable Admittance Control Tuning of A Robotic Lift Assistant System," SAE Int. J. Engines 10(2):203-208, 2017, doi:10.4271/2017-01-0288.
Author(s):
Affiliated:
Pages:
6
Abstract:
The human-robot interaction (HRI) is involved in a lift assistant system of manufacturing assembly line. The admittance model is applied to control the end effector motion by sensing intention from force of applied by a human operator. The variable admittance including virtual damping and virtual mass can improve the performance of the systems. But the tuning process of variable admittance is un-convenient and challenging part during the real test for designers, while the offline simulation is lack of learning process and interaction with human operator. In this paper, the Iterative learning algorithm is proposed to emulate the human learning process and facilitate the variable admittance control design. The relationship between manipulate force and object moving speed is demonstrated from simulation data. The effectiveness of the approach is verified by comparing the simulation results between two admittance control strategies.
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