The Transactions of the Korean Institute of Electrical Engineers D (대한전기학회논문지:시스템및제어부문D)

The Korean Institute of Electrical Engineers (대한전기학회)
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Designing Fault-Tolerant Gaits for Quadruped Robots Using Energy Stability Margins

에너지 안정여유도를 이용한 사족 보행 로봇의 내고장성 걸음새

  • Published : 2006.07.01
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Abstract

This paper proposes a novel fault-tolerant gait for Quadruped robots using energy stability margins. The previously developed fault-tolerant gaits for quadruped robots have a drawback of having marginal stability margin, which may lead to tumbling. In the process of tumbling, the potential energy of the center of gravity goes through a maximum. The larger the difference between the potential energy of the center of gravity of the initial position and that of this maximum, the less the robot tumbles. Hence this difference of potential energy, dubbed as Energy Stability Margin (ESM), can be regarded as the stability margin. In this paper, a novel fault-tolerant gait is presented which gives positive ESM to a quadruped robot suffering from a locked joint failure. Positive ESM is obtained by adjusting foot positions between leg swing sequences. The advantage of the proposed fault-tolerant gait is demonstrated in a case study where a quadruped robot with a failed leg walks on a even slope.

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References

  1. T. C. Lueth, U. M. Nassal and U. Rembold, 'Reliability and integrated capabilities of locomotion and manipulation for autonomous robot assembly,' Robotics and Autonomous Systems, vol. 14, no. 2, pp. 185-198, 1995 https://doi.org/10.1016/0921-8890(94)00029-2
  2. J.-M. Yang and J.-H. Kim, 'Fault-tolerant locomotion of the hexapod robot,' IEEE Transactions on Systems, Man, and Cybernetics B, vol. 28, no. 1, pp. 109-116, 1998 https://doi.org/10.1109/3477.658585
  3. H. Arai and S. Tachi, 'Position control of a manipulator with passive joints using dynamic coupling,' IEEE Transactions on Robotics and Automation, vol. 7, no. 1, pp. 15-20, 1991
  4. P. V. Nagy, S. Desa and W. L. Whittaker, 'Energy based stability measures for reliable locomotion of statically stable walkers: theory and application,' International Journal of Robotics Research, vol. 13, no. 3, pp. 272-287, 1994 https://doi.org/10.1177/027836499401300307
  5. J.-M. Yang and J.-H. Kim, 'Optimal fault tolerant gait sequence of the hexapod robot with overlapping reachable areas and crab walking,' IEEE Transactions on Systems, Man, and Cybernetics A, vol. 29, no. 2, pp. 224-235, 1999 https://doi.org/10.1109/3468.747858
  6. S. K.-K. Chu and G. K.-H. Pang, 'Comparison between different model of hexapod robot in fault-tolerant gait,' IEEE Transactions on Systems, Man, and Cybernetics A, vol. 32, no. 6, pp. 752-756, 2002 https://doi.org/10.1109/TSMCA.2002.807066
  7. C. L. Lewis and A. A. Maciejewski, 'Fault tolerant operation of kinematically redundant manipulators for locked joint failures,' IEEE Transactions on Robotics and Automation, vol. 13, no. 4, pp. 622-629, 1997 https://doi.org/10.1109/70.611335
  8. J.-M. Yang, 'Fault tolerant gaits of quadruped robots for locked joint failures,' IEEE Transactions on Systems, Man and Cybernetics C, vol. 32, no. 4, pp. 507-516, 2002 https://doi.org/10.1109/TSMCC.2002.807274
  9. 양정민, 노지명, '육각 보행 로봇의 내고장성 세다리 걸음새,' 대한전기학회논문지, 제52D권, 제12호, pp. 689-695, 2003
  10. 노지명, 양정민, '교착 회피를 고려한 내고장성 세다리 걸음새,' 대한전기학회논문지, 제53D권, 제8호, pp. 585-593, 2004
  11. 양정민, 박용국, '비평탄 지형에서 사각 보행 로봇의 고장후 보행,' 대한전기학회논문지, 제54D권, 제9호, pp. 547-555, 2005
  12. D. C. Messuri and C. A. Klein, 'Automatic body regulation for maintaining stability of a legged vehicle during rough-terrain locomotion,' IEEE Journal of Robotics and Automation, vol. RA-1, no. 3, pp. 132-141, 1985
  13. H. Tsukagoshi, S. Hirose and K. Yoneda, 'Maneuvering operations of a quadruped walking robot on a slope,' Advanced Robotics, vol. 11, no. 4, pp. 359-375, 1997 https://doi.org/10.1163/156855397X00371
  14. J. J. Craig, Introduction to Robotics (3rd ed.), Pearson Education, NJ, 2005
  15. S. M. Song and K. J. Waldron, Machines That Walk: The Adaptive Suspension Vehicle, MIT Press, Cambridge, MA,1989