Biomimetic transfemoral prosthesis
US9737419B2 · kind B2 · utility
34Cited by
319References
22Claims
0Family size
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Key dates
| Filing date | Nov 2, 2012 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2005/0155
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an artificial limb system having an actuator coupled to a joint for applying a torque characteristic thereto, a control bandwidth of a motor controller for a motor included in the actuator can be increased by augmenting a current feedback loop in the motor controller with a feed forward of estimated back electromotive force (emf) voltage associated with, the motor. Alternatively, the current loop is eliminated and replaced with a voltage loop related to joint torque. The voltage loop may also be augmented with the feed forward of estimated back emf, to improve the robustness of the motor controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.