Switch-based Independent Antagonist Actuation with a Single Motor for a Soft Exosuit
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913683860357120 |
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| author | Vadeyar, Atharva Varghese, Rejin John Burdet, Etienne Farina, Dario |
| author_facet | Vadeyar, Atharva Varghese, Rejin John Burdet, Etienne Farina, Dario |
| contents | The use of a cable-driven soft exosuit poses challenges with regards to the mechanical design of the actuation system, particularly when used for actuation along multiple degrees of freedom (DoF). The simplest general solution requires the use of two actuators to be capable of inducing movement along one DoF. However, this solution is not practical for the development of multi-joint exosuits. Reducing the number of actuators is a critical need in multi-DoF exosuits. We propose a switch-based mechanism to control an antagonist pair of cables such that it can actuate along any cable path geometry. The results showed that 298.24ms was needed for switching between cables. While this latency is relatively large, it can reduced in the future by a better choice of the motor used for actuation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_05290 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Switch-based Independent Antagonist Actuation with a Single Motor for a Soft Exosuit Vadeyar, Atharva Varghese, Rejin John Burdet, Etienne Farina, Dario Robotics The use of a cable-driven soft exosuit poses challenges with regards to the mechanical design of the actuation system, particularly when used for actuation along multiple degrees of freedom (DoF). The simplest general solution requires the use of two actuators to be capable of inducing movement along one DoF. However, this solution is not practical for the development of multi-joint exosuits. Reducing the number of actuators is a critical need in multi-DoF exosuits. We propose a switch-based mechanism to control an antagonist pair of cables such that it can actuate along any cable path geometry. The results showed that 298.24ms was needed for switching between cables. While this latency is relatively large, it can reduced in the future by a better choice of the motor used for actuation. |
| title | Switch-based Independent Antagonist Actuation with a Single Motor for a Soft Exosuit |
| topic | Robotics |
| url | https://arxiv.org/abs/2502.05290 |