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Development of portable active suspension for welfare support devices: Controller design and performance evaluation of one‐degree‐of‐freedom prototype
Author(s) -
Maezato Keigo,
Asato Kentaro
Publication year - 2021
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.23332
Subject(s) - suspension (topology) , controller (irrigation) , domain (mathematical analysis) , representation (politics) , control theory (sociology) , space (punctuation) , engineering , control engineering , degrees of freedom (physics and chemistry) , computer science , simulation , control (management) , mathematics , artificial intelligence , law , operating system , physics , mathematical analysis , quantum mechanics , homotopy , politics , political science , pure mathematics , agronomy , biology
In this study, we developed a small prototype of a one‐degree‐of‐freedom portable active suspension for welfare support devices. The suspension is expected to be applied to welfare support devices such as wheelchairs, transport trolleys, and child seats. This paper presents the mechanism and the state space representation of the developed suspension, and an evaluation of the frequency domain characteristics and time domain response of the controlled system with poles assignment method. Furthermore, experiments under three road surface conditions were conducted to verify the effectiveness of the developed suspension.