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Development of Handrim-Activated Power-Assist Wheelchair for Seniors and the Disabled

  • Ki-Tae Nam
  • Yoon Heo
  • Yong Cheol Kim
  • Yoonhee Chang
  • Eung-Pyo Hong
Regular Paper
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Abstract

This paper presents a new handrim-activated power-assist wheelchair (HAPAW) for seniors and the disabled. The HAPAW has all the benefits of manual and electric wheelchairs and is being actively developed for use by the disabled and seniors, because of the global aging trend. The key technological components of a HAPAW are a sensor-embedded driving wheel mechanism for detecting user intention and a balancing algorithm for improved driving performance. In this work, a driving wheel mechanism with a simple non-contact user-intention-detection sensor composed of a magnet and Hall sensor was designed. In addition, a balancing algorithm that uses the measured torque and time difference for driving wheel control was applied. An HAPAW prototype incorporating the designed driving wheel and control algorithm was fabricated, and its performance was tested according to the electric wheelchair standards. In addition, to confirm the power-assist effect, the power-assist wheelchair energy consumption was measured separately for senior and disabled participants and compared with that for a manual wheelchair. Through performance testing and clinical testing, it was confirmed that the developed HAPAW can be successfully employed as an electric wheelchair, with improved driving performance and energy efficiency over those of a manual wheelchair.

Keywords

Handrim-activated Power-assist Torque sensor Wheelchair 

NOMENCLATURE

PAW

power assist wheelchair

HAPAW

handrim- activated power assist wheelchair

VO2

oxygen uptake

VCO2

carbon dioxide production

HR

heart rate

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References

  1. 1.
    Guillon, B., Van-Hecke, G., Iddir, J., Pellegrini, N., Beghoul, N., et al., “Evaluation of 3 Pushrim-Activated Power-Assisted Wheelchairs in Patients with Spinal Cord Injury,” Archives of Physical Medicine and Rehabilitation, Vol. 96, pp. 894–904, 2015.CrossRefGoogle Scholar
  2. 2.
    Chien, C. S., Huang, T. Y., Liao, T. Y., Kuo, T. Y., and Lee, T. M., “Design and Development of Solar Power-Assisted Manual/Electric Wheelchair,” Journal of Rehabilitation Research & Development, Vol. 51, No. 9, pp. 1411–1425, 2014.CrossRefGoogle Scholar
  3. 3.
    Levy, C. E., Buman, M. P., Chow, J. W., Tillman, M. D., Fournier, K. A., and Giacobbi, P., “Use of Power Assist Wheels Results in Increased Distance Traveled Compared with Conventional Manual Wheeling,” American Journal of Physical Medicine & Rehabilitation, Vol. 89, No. 8, pp. 625–634, 2010.CrossRefGoogle Scholar
  4. 4.
    Trujillo-León, A., and Vidal-Verdú, F., “Driving interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys,” Sensors, Vol. 14, No. 2, pp. 2644–2662, 2014.CrossRefGoogle Scholar
  5. 5.
    Nash, M. S., Koppens, D., Van Haaren, M., Sherman, A. L., Lippiatt, J. P., and Lewis, J. E., “Power-Assisted Wheels Ease Energy Costs and Perceptual Response to Wheelchair Propulsion in Persons with Shoulder Pain and Spinal Cord Injury,” Archives of Physical Medicine and Rehabilitation, Vol. 89, No. 11, pp. 2080–2085, 2008.CrossRefGoogle Scholar
  6. 6.
    Nam, K. T., Jang, D. J., Kim, Y. C., Heo, Y., and Hong, E. P., “A Study of a Handrim-Activated Power-Assist Wheelchair Based on a Non-Contact Torque Sensor,” Sensor, Vol. 16, No. 8, Paper No. 1251, 2016.Google Scholar
  7. 7.
    Tsai, M. C. and Hsueh, P. W., “Force Sensorless Control of Power-Assisted Wheelchair Based on Motion Coordinate Transformation,” Mechatronics, Vol. 23, No. 8, pp. 1014–1024, 2013.CrossRefGoogle Scholar
  8. 8.
    Oh, S., Kong, K., and Hori, Y., “Design and Analysis of Force-Sensor-Less Power-Assist Control,” IEEE Transactions on Industrial Electronics, Vol. 61, No. 2, pp. 985–993, 2014.CrossRefGoogle Scholar
  9. 9.
    Seki, H., Sugimoto, T., and Tadakuma, S., “Straight and Circular Road Driving Control of Power assisted Wheelchair Based on Balanced Assist Torque,” Proc. of the 31st Annual Conference of IEEE industrial Electronics Society, pp. 451–456, 2005.Google Scholar
  10. 10.
    Heo, Y., Hong, E. P., Mun, M. S., and Choi, T. H., “Torque Balancing for Power Assisted Wheelchair Based on Torque and Temporal Similarity,” International Journal of Precision Engineering and Manufacturing, Vol. 16, No. 8, pp. 1729–1734, 2015.CrossRefGoogle Scholar
  11. 11.
    EN 12184, “Electrically Powered Wheelchairs, Scooters and theirs Charger-Requirements and Test Methods,” 2014.Google Scholar
  12. 12.
    ISO 7176–8, “Wheelchairs-Part 8: Requirements and Test Methods for Static, Impact and Fatigue Strengths,” 2014.Google Scholar
  13. 13.
    Cooper, R. A., Fitzgerald, S. G., Boninger, M. L., Prins, K., Rentschler, A. J., et al., “Evaluation of a Pushrim-Activated, Power-Assisted Wheelchair,” Archives of Physical Medicine and Rehabilitation, Vol. 82, No. 5, pp. 702–708, 2001.CrossRefGoogle Scholar
  14. 14.
    Hiremath, S. V. and Ding, D., “Evaluation of Activity Monitors in Manual Wheelchair Users with Paraplegia,” Journal of Spinal Cord Medicine, Vol. 34, No.1, pp. 110–117, 2011.CrossRefGoogle Scholar
  15. 15.
    Shinichi, A., Hiroshi, K., and Masatake, S., “One-Hand Driven-Type Power-Assisted Wheelchair with a Direction Control Device Using Pneumatic Pressure,” Journal of Advanced Robotics, Vol. 16, pp. 773–784, 2012.Google Scholar
  16. 16.
    Arva, J., Fitzgerald, S. G., Cooper, R. A., and Boninger, M. L., “Mechanical Efficiency and User Power Requirement with a Pushrim Activated Power Assisted Wheelchair,” Medical Engineering & Physics, Vol. 23, No. 10, pp. 699–705, 2001.CrossRefGoogle Scholar
  17. 17.
    Algood, S. D., Cooper, R. A., Fitzgerald, S. G., Cooper, R., and Boninger, M. L., “Impact of a Pushrim-Activated Power-Assisted Wheelchair on the Metabolic Demands, Stroke Frequency, and Range of Motion among Subjects with Tetraplegia,” Archives of Physical Medicine and Rehabilitation, Vol. 85, No. 11, pp. 1865–1871, 2004.CrossRefGoogle Scholar
  18. 18.
    Algood, S. D., Cooper, R. A., Fitzgerald, S. G., Cooper, R., and Boninger, M. L., “Effect of a Pushrim-Activated Power-Assist Wheelchair on the Functional Capabilities of Persons with Tetraplegia,” Archives of Physical Medicine and Rehabilitation, Vol. 86, No. 3, pp. 380–386, 2005.CrossRefGoogle Scholar
  19. 19.
    McCraty, R., Atkinson, M., Tiller, W. A., Rein, G., and Watkins, A. D., “The Effects of Emotions on Short-Term Power Spectrum Analysis of Heart Rate Variability,” American Journal of Cardiology, Vol. 76, No. 14, pp. 1089–1093, 1995.CrossRefGoogle Scholar
  20. 20.
    Best, K. L., Kirby, R. L., Smith, C., and Macleod, D. A., “Comparison between Performance with a Pushrim-Activated Power-Assisted Wheelchair and a Manual Wheelchair on the Wheelchair Skills Test,” Disability and Rehabilitation, Vol. 28, No. 4, pp. 213–220, 2006.CrossRefGoogle Scholar

Copyright information

© Korean Society for Precision Engineering and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Rehabilitation Engineering Research InstituteIncheonRepublic of Korea

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