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Optimal Tracking and Identification of Paths for Industrial Robots

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Author

Summary, in English

This paper presents results from time-optimal path tracking for industrial robots. More specifically, three subproblems are studied and experimentally evaluated. The first is a contact-force control approach for determining the geometric robot motion, such that the tool centre point of the robot is moved according to the specification. The second problem is off-line solution of the optimisation problem describing the time-optimal path tracking problem, by using software which allows highlevel implementation and solution of optimisation problems. The third problem is robust control of the robot during real-time path tracking based on the optimisation results determined off-line. An earlier developed control structure for robust control is implemented and tested in a robot system. This paper discusses the theory behind time-optimal path tracking and presents experimental results. Both contact-force controlled path identification and real-time path tracking of the identified path are evaluated on a 6-DOF industrial robot of type IRB140 from ABB.

Publishing year

2011

Language

English

Pages

1126-1132

Publication/Series

Proceedings of the 18th IFAC World Congress, 2011

Document type

Conference paper

Publisher

IFAC

Topic

  • Control Engineering

Conference name

18th IFAC World Congress, 2011

Conference date

2011-08-28 - 2011-09-02

Conference place

Milan, Italy

Status

Published

Project

  • LCCC
  • ProFlexa
  • RobotLab LTH

Research group

  • LCCC