Sitting, Standing and Walking Control of the Series-Parallel Hybrid Recupera-Reha Exoskeleton
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866913537908015104 |
|---|---|
| author | Tijjani, Ibrahim Kumar, Rohit Boukheddimi, Melya Trampler, Mathias Kumar, Shivesh Kirchner, Frank |
| author_facet | Tijjani, Ibrahim Kumar, Rohit Boukheddimi, Melya Trampler, Mathias Kumar, Shivesh Kirchner, Frank |
| contents | This paper presents advancements in the functionalities of the Recupera-Reha lower extremity exoskeleton robot. The exoskeleton features a series-parallel hybrid design characterized by multiple kinematic loops resulting in 148 degrees of freedom in its spanning tree and 102 independent loop closure constraints, which poses significant challenges for modeling and control. To address these challenges, we applied an optimal control approach to generate feasible trajectories such as sitting, standing, and static walking, and tested these trajectories on the exoskeleton robot. Our method efficiently solves the optimal control problem using a serial abstraction of the model to generate trajectories. It then utilizes the full series-parallel hybrid model, which takes all the kinematic loop constraints into account to generate the final actuator commands. The experimental results demonstrate the effectiveness of our approach in generating the desired motions for the exoskeleton. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_06008 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Sitting, Standing and Walking Control of the Series-Parallel Hybrid Recupera-Reha Exoskeleton Tijjani, Ibrahim Kumar, Rohit Boukheddimi, Melya Trampler, Mathias Kumar, Shivesh Kirchner, Frank Robotics 68-06 This paper presents advancements in the functionalities of the Recupera-Reha lower extremity exoskeleton robot. The exoskeleton features a series-parallel hybrid design characterized by multiple kinematic loops resulting in 148 degrees of freedom in its spanning tree and 102 independent loop closure constraints, which poses significant challenges for modeling and control. To address these challenges, we applied an optimal control approach to generate feasible trajectories such as sitting, standing, and static walking, and tested these trajectories on the exoskeleton robot. Our method efficiently solves the optimal control problem using a serial abstraction of the model to generate trajectories. It then utilizes the full series-parallel hybrid model, which takes all the kinematic loop constraints into account to generate the final actuator commands. The experimental results demonstrate the effectiveness of our approach in generating the desired motions for the exoskeleton. |
| title | Sitting, Standing and Walking Control of the Series-Parallel Hybrid Recupera-Reha Exoskeleton |
| topic | Robotics 68-06 |
| url | https://arxiv.org/abs/2410.06008 |