Abstract
This abstract describes the design and experimental evaluation of a force tracking controller for hip extension assistance utilizing a soft exosuit connected to a tethered off-board actuation system. The new controller aims to improve the force profile tracking capability and demonstrate its advantages over our previously reported work. The controller was evaluated by one healthy participant walking on a treadmill at 1.35 m/s. Results showed that the system can deliver a predefined force profile robustly with a 200 N peak force. The measured peak force value using force controller was 198.7 ± 2.9 N, and the root-mean-squared (RMS) error was 3.4 N (1.7 % of desired peak force). These results indicate that the force control reduces peak force variability and improves force profile tracking capability.
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References
Malcolm, P., Derave, W., Galle, S., De Clercq, D.: A simple exoskeleton that assists plantarflexion can reduce the metabolic cost of human walking. PLoS ONE 8(2), e56137 (2013)
Mooney, L.M., Rouse, E.J., Herr, H.M.: Autonomous exoskeleton reduces metabolic cost of human walking during load carriage. J. Neuroeng. Rehabil. 11, 80 (2014)
Collins, S.H., Wiggin, M.B., Sawicki, G.S.: Reducing the energy cost of human walking using an unpowered exoskeleton. Nature 522, 212–215 (2015)
Panizzolo, F., Galiana, I., Asbeck, A., Siviy, C., Schmidt, K., Holt, K., Walsh, C.: A biologically-inspired multi-joint soft exosuit that can reduce the energy cost of loaded walking. J. NeuroEng. Rehabi. 13(1), 1 (2016). In press
Ding, Y., Galiana, I., Asbeck, A., Santos, T., Araujo, V., Lee, S., Holt, K., Walsh, C.: Biomechanical and physiological evaluation of multi-joint assistance with soft exosuits. IEEE Trans. Neural Syst. Rehabil. Eng. 99, 1 (2016)
Ding, Y., Galiana, I., Malcolm, P., Walsh, C.: IMU-based iterative control for hip extension assistance with a soft exosuit. In: IEEE International Conference on Robotics and Automation (ICRA) (2016)
Zhang, J., Cheah, C.C., Collins, S.H.: Experimental comparison of torque control methods on an ankle exoskeleton during human walking. In: IEEE International Conference on Robotics and Automation (ICRA 2015), Seattle, WA, pp. 5584–5589 (2015)
Jackson, R.W., Collins, S.H.: An experimental comparison of the relative benefits of work and torque assistance in ankle exoskeletons. J. Appl. Physiol. 119, 541–557 (2015)
Acknowledgments
This material is based upon the work supported by the Defense Advanced Research Projects Agency (DARPA), Warrior Web Program (W911NF-14-C-0051). This work was also partially funded by the Wyss Institute for Biologically Inspired Engineering and the John A. Paulson School of Engineering and Applied Sciences at Harvard University.
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Su, H. et al. (2017). Evaluation of Force Tracking Controller with Soft Exosuit for Hip Extension Assistance. In: González-Vargas, J., Ibáñez, J., Contreras-Vidal, J., van der Kooij, H., Pons, J. (eds) Wearable Robotics: Challenges and Trends. Biosystems & Biorobotics, vol 16. Springer, Cham. https://doi.org/10.1007/978-3-319-46532-6_18
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DOI: https://doi.org/10.1007/978-3-319-46532-6_18
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