A review of current state-of-the-art control methods for lower-limb powered prostheses

R Gehlhar, M Tucker, AJ Young, AD Ames - Annual reviews in control, 2023 - Elsevier
Lower-limb prostheses aim to restore ambulatory function for individuals with lower-limb
amputations. While the design of lower-limb prostheses is important, this paper focuses on …

A stair ascent and descent controller for a powered ankle prosthesis

S Culver, H Bartlett, A Shultz… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper presents a control system for a powered transtibial prosthesis that provides stair
ascent and descent capability, as well as ability for user-controlled transitions between …

Multicontact locomotion on transfemoral prostheses via hybrid system models and optimization-based control

H Zhao, J Horn, J Reher, V Paredes… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Lower-limb prostheses provide a prime example of cyber-physical systems (CPSs) requiring
the synergistic development of sensing, algorithms, and controllers. With a view towards …

Deep generative models with data augmentation to learn robust representations of movement intention for powered leg prostheses

B Hu, AM Simon, L Hargrove - IEEE Transactions on Medical …, 2019 - ieeexplore.ieee.org
Intent recognition is a data-driven alternative to expert-crafted rules for triggering transitions
between pre-programmed activity modes of a powered leg prosthesis. Movement-related …

Nonholonomic virtual constraint design for variable-incline bipedal robotic walking

JC Horn, A Mohammadi, KA Hamed… - IEEE Robotics and …, 2020 - ieeexplore.ieee.org
This letter presents a method of designing relative-degree-two nonholonomic virtual
constraints (NHVCs) that allow for stable bipedal robotic walking across variable terrain …

Recurrent neural network control of a hybrid dynamical transfemoral prosthesis with EdgeDRNN accelerator

C Gao, R Gehlhar, AD Ames, SC Liu… - … on Robotics and …, 2020 - ieeexplore.ieee.org
Lower leg prostheses could improve the life quality of amputees by increasing comfort and
reducing energy to locomote, but currently control methods are limited in modulating …

Nonholonomic virtual constraints for control of powered prostheses across walking speeds

JC Horn, RD Gregg - IEEE Transactions on Control Systems …, 2021 - ieeexplore.ieee.org
This article presents a method to design a nonholonomic virtual constraint (NHVC) controller
that produces multiple distinct stance-phase trajectories for corresponding walking speeds …

Obstacle recognition using computer vision and convolutional neural networks for powered prosthetic leg applications

L Novo-Torres, JP Ramirez-Paredes… - 2019 41st Annual …, 2019 - ieeexplore.ieee.org
In this work we combine computer vision and a machine learning algorithm, Convolutional
Neural Networks (CNNs), to identify obstacles that powered prosthetic leg users might …

Design and speed-adaptive control of a powered geared five-bar prosthetic knee using bp neural network gait recognition

Y Sun, R Huang, J Zheng, D Dong, X Chen, L Bai… - Sensors, 2019 - mdpi.com
To improve the multi-speed adaptability of the powered prosthetic knee, this paper
presented a speed-adaptive neural network control based on a powered geared five-bar …

Upslope walking with transfemoral prosthesis using optimization based spline generation

V Paredes, W Hong, S Patrick… - 2016 IEEE/RSJ …, 2016 - ieeexplore.ieee.org
Powered transfemoral prostheses are robotic systems that aim to restore the mobility of
transfemoral amputees by mimicking the functionalities of healthy human legs. The …