Sliding mode control based on position control for contact motion - Applied to hopping robot

Sho Sakaino, Kouhei Ohnishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Robots tend to be unstable at contacting environment, since robots receive high order disturbance like a impact force. In order to continue stable motion, robots should not only track to command value, but reduce the impact force. In many conventional methods, impedance control is applied to these kinds of problems. However, there is a problem that robustness of position control may be low with the impedance control. It is because that the characteristics of position control and force control are derived from same parameters. Hence, designers troubled over tuning of these parameters. In this paper, control system transformation method is shown. Consequently, designers are able to change the system behavior as they like. Selected control system for contact motion is that, physical model is second order system, and controller is set as sliding mode control. Second order system is compliant for the external force, and sliding mode controller ensures high robustness of position control and force control, and the stability is also assured. In the result, robots are able to suppress the impact force, and to continue stable motion. The effectiveness of the proposed method is confirmed by experiment.

Original languageEnglish
Title of host publication2006 IEEE International Conference on Industrial Technology, ICIT
Pages170-175
Number of pages6
DOIs
Publication statusPublished - 2006 Dec 1
Event2006 IEEE International Conference on Industrial Technology, ICIT - Mumbai, India
Duration: 2006 Dec 152006 Dec 17

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology

Other

Other2006 IEEE International Conference on Industrial Technology, ICIT
CountryIndia
CityMumbai
Period06/12/1506/12/17

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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    Sakaino, S., & Ohnishi, K. (2006). Sliding mode control based on position control for contact motion - Applied to hopping robot. In 2006 IEEE International Conference on Industrial Technology, ICIT (pp. 170-175). [4237669] (Proceedings of the IEEE International Conference on Industrial Technology). https://doi.org/10.1109/ICIT.2006.372347