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Title: Improving the Motion Performance for an Intelligent Walking Support Machine by RLS Algorithm
Authors: Wang, Yina
Wang, Shuoyu
Tan, Renpeng
Jiang, Yinlai
Ishida, Kenji
Kobayashi, Yo
Fujie, Masakatsu G
Issue Date: Apr-2013
Publisher: ICIC International
Journal Title: ICIC Express Letters
Volume: 7
Issue: 4
Start Page: 1177
End Page: 1182
Abstract: To make the old people and handicapped people move easily by themselves, an omni-directional walking support machine (WSM) has been developed. In our previous study, to improve the motion performance of the WSM, a digital acceleration control method has been developed to deal with the nonlinear friction. However, the design of the digital acceleration controller requires to know the exact plant parameters of the WSM which are variable due to center of gravity (COG) shift and load changes. The change of the plant parameters affects the motion performance of the digital acceleration control system. Therefore, in this paper, a discrete-time system identification method using recursive least squares (RLS) algorithm is proposed to online identify the WSM’s plant parameters for the digital acceleration controller. Simulations are executed and compared with the digital acceleration controller without using RLS algorithm, and the results demonstrate the feasibility and effectiveness of the proposed control method.
Rights: ICIC International © 2013
Type: Journal Article
URI: http://hdl.handle.net/10173/1501
Appears in Collections:学術雑誌論文

Please use this identifier to cite or link to this item: http://hdl.handle.net/10173/1501

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