Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Gait Pattern Generation for Lower Extremity Exoskeleton Robot and Verification of Energy Efficiency

하지 착용형 외골격 로봇의 효율적 보행패턴 생성 및 에너지 효율성 검증

  • Received : 2011.07.18
  • Accepted : 2011.11.26
  • Published : 2012.03.01
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Abstract

The purpose of this study is to verify the energy efficiency of the integrated system combining human and a lower extremity exoskeleton robot when it is applied to the proposed gait pattern. Energy efficient gait pattern of the lower limb was proposed through leg function distribution during stance phase and the dynamic-manipulability ellipsoid (DME). To verify the feasibility and effect of the redefined gait trajectory, simulations and experiments were conducted under the conditions of walking on level ground and ascending and descending from a staircase. Experiments to calculate the metabolic cost of the human body with or without the assistance of the exoskeleton were conducted. The energy consumption of the lower extremity exoskeleton was assessed, with the aim of improving the efficiency of the integrated system.

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References

  1. Kim, W. S., Lee, S. H., Lee, H. D., Yu, S. N., Han J. S. and Han, C. S., "Development of the heavy load transferring task oriented exoskeleton adapted by lower extremity using quasi-active joints," ICROSSICE Int. Conf., pp. 1353-1358, 2009.
  2. Kawamoto, H. and Sankai, Y., "Power assist system HAL 3 for gait disorder person," Computers Helping People with Special Needs: Lecture Notes in Computer Science, Vol. 2398, pp. 196-203, 2002.
  3. Honda, http://corporate.honda.com/innovation/walkassist/
  4. Berkeley Bionics, http://berkeleybionics.com/
  5. Kong, K. and Jeon, D., "Design and Control of an Exoskeleton for the Elderly and Patients," IEEE/ASME Trans. Mechatronics, Vol. 11, No. 4, pp. 428-432, 2006. https://doi.org/10.1109/TMECH.2006.878550
  6. James, P., "The Mechanics of and the Robotic Design for Quadrupedal Galloping," Doctor of Philosophy, Dept. of Mechanical Engineering, Ohio State University, 2001.
  7. Marhefka, D. W. and Orin, D. E., "Gait Planning for Energy Efficiency in Walking Machines," IEEE International Conference on Robotics and Automation, Vol. 1, pp. 474-480, 1997.
  8. Whittle, M. W., "Gait Analysis an Introduction," Butterworth-Heinemann, 2007.
  9. Lee, S., Kim, W., Kang, M., Han, J. and Han, C., "Optimal Gait Pattern Generation for Powered Robotic Exoskeleton and verification of its Feasibility," International Symposium on Robotic and Human Interactive Communication, pp. 500-505, 2010.
  10. McFadyen, B. J. and Winter, D. A., "An Integrated Biomechanical Analysis of Normal Stair Ascent and Descent," Journal of Biomechanics, Vol. 21, No. 9, pp. 733-744, 1988. https://doi.org/10.1016/0021-9290(88)90282-5
  11. Duncan, J. A., Kowalk, D. L. and Vaughan, C. L., "Six Degree of Freedom Joint Power in Stair Climbing," Gait & Posture, Vol. 5, No. 3, pp. 204-210, 1997. https://doi.org/10.1016/S0966-6362(96)01086-7
  12. Eng, J. J. and Winter, D. A., "Kinematic Analysis of the Lower Limbs during Walking: What Information can be Gained from a Three-dimensional Model," Journal of Biomechanics, Vol. 28, No. 6, pp. 753-758, 1995. https://doi.org/10.1016/0021-9290(94)00124-M
  13. Palmer, M. L., "Sagittal Plane Characterization of Normal Human Ankle Function Across a Range of Walking Gait Speeds," Master Thesis, Dept. of Mechanical Engineering, Massachusetts Institute of Technology, 2002.
  14. Pasquale, C. and Mariano, C., "The Dynamic Manipulability Ellipsoid for Redundant Manipulators," IEEE International Conference on Robotics and Automation, Vol. 1, pp. 95-100, 1998.
  15. Kim, W. S., Yu, S. N. and Han, C. S., "Leg Swing Trajectory Generation of Quadruped Robot Considering Required Torque Reduction and Leg Function Distribution," 39th International Symposium on Robotics, pp. 329-333, 2008.
  16. Gregorczyk, K. N., Obusek, J. P., Hasselquist, L., Schiffman, J. M., Bensel, C. K., Gutekunst, D. and Frykman, P., "The Effects of a Lower Body Exoskeleton Load Carriage Assistive Device on Oxygen Consumption and Kinematics during Walking with Loads," 25th Army Science Conference, pp. 1263-1275, 2006
  17. Jim, R., "Biomechanics in Clinic and Research: An Interactive teaching and Learning Course," Churchill Livingstone Elsevier, 2008.

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