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Switching Position-Torque Control for Series Elastic Actuators with Disturbance Observer

Title
Switching Position-Torque Control for Series Elastic Actuators with Disturbance Observer
Authors
Jo, MinjaeLee, HyunwookOh, Sehoon
DGIST Authors
Oh, Sehoon
Issue Date
2019-10-17
Citation
45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019, 3653-3658
Type
Conference
ISBN
9781728148786
Abstract
This paper proposes a novel switch control for the series elastic actuator (SEA). This switch control provides more robust position control along with better impulse dissipation performance. SEA is an actuator technology commonly used in robotic applications that require safe and precise interaction control. The SEA has built-in spring elements to inherently measure or estimate the transmitted force. It is often used for the application where the relevant action between motion and force is needed. The switching problem between position and torque control is one of the major issues, especially in situations where both position and torque information are critical, such as collisions. To deal with this problem, we discuss the conventional switching method and suggest a new method. Besides, this paper describes the criteria for comparing and analyzing them and presents a new approach that utilizes the concept of power to evaluate the performance of switching algorithms. © 2019 IEEE.
URI
http://hdl.handle.net/20.500.11750/11810
DOI
10.1109/IECON.2019.8926820
Publisher
IEEE Computer Society
Related Researcher
  • Author Oh, Sehoon MCL(Motion Control Lab)
  • Research Interests Research on Human-friendly motion control; Development of human assistance;rehabilitation system; Design of robotic system based on human musculoskeletal system; Analysis of human walking dynamics and its application to robotics; 친인간적인 운동제어 설계연구; 인간 보조;재활 시스템의 설계 및 개발연구; 인간 근골격계에 기초한 로봇기구 개발연구; 보행운동 분석과 모델 및 로봇기구에의 응용
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Collection:
Department of Robotics EngineeringMCL(Motion Control Lab)2. Conference Papers


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