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Friedl De Groote

3 accepted papers

2018

Estimating Contact Forces and Moments for Walking Robots and Exoskeletons Using Complementary Energy Methods

RA-L 2018

When walking robots and exoskeletons make multiple independent contacts, the inverse dynamics problem requires additional knowledge about the contact forces and moments. To avoid measuring the contact forces and moments, many inverse dynamics controllers for walking robots optimize an objective such

Cited by 10SourceScholar
2016

Predicting Seat-Off and Detecting Start-of-Assistance Events for Assisting Sit-to-Stand With an Exoskeleton

RA-L 2016

Accurate and reliable event prediction is imperative for supporting movement with an exoskeleton. Two events are important during a sit-to-stand movement: seat-off, the event at which the subject leaves the chair and start-of-assistance for hip and knee, the earliest time at which assistance may be

Cited by 22SourceScholar
2015

Optimal excitation and identification of the dynamic model of robotic systems with compliant actuators

ICRA 2015poster

An increasing number of robotic systems are using compliant actuators in which springs are placed in series with the actuator. The need for identification procedures tailored to these systems is consequently rising. When measurements of both the link side and the motor side of the spring are availab…

Cited by 31SourceScholar