← Search

Matthias Hofer

5 accepted papers

2021

Offset-free Model Predictive Control: A Ball Catching Application with a Spherical Soft Robotic Arm

IROS 2021poster

This paper presents an offset-free model predictive controller for fast and accurate control of a spherical soft robotic arm. In this control scheme, a linear model is combined with an online disturbance estimation technique to systematically compensate model deviations. Dynamic effects such as mate…

Cited by 11SourceScholar
2020

Vision-Based Proprioceptive Sensing: Tip Position Estimation for a Soft Inflatable Bellow Actuator

IROS 2020poster

This paper presents a vision-based sensing approach for a soft linear actuator, which is equipped with an internal camera. The proposed vision-based sensing pipeline predicts the three-dimensional tip position of the actuator. To train and evaluate the algorithm, predictions are compared to ground t…

Cited by 14SourceScholar
2019

Iterative Learning Control for Fast and Accurate Position Tracking with an Articulated Soft Robotic Arm

IROS 2019poster

This paper presents the application of an iterative learning control scheme to improve the position tracking performance for an articulated soft robotic arm during aggressive maneuvers. Two antagonistically arranged, inflatable bellows actuate the robotic arm and provide high compliance while enabli…

Cited by 44SourceScholar
2016

Application of an approximate model predictive control scheme on an unmanned aerial vehicle

ICRA 2016

An approximate model predictive control approach is applied on an unmanned aerial vehicle with limited computational resources. A novel method using a continuous time parametrization of the state and input trajectory is used to derive a compact description of the optimal control problem. Different f

Cited by 33SourceScholar