Invention Application
- Patent Title: WALKING ASSISTANCE APPARATUS AND ITS CONTROL METHOD
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Application No.: US15671756Application Date: 2017-08-08
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Publication No.: US20180085280A1Publication Date: 2018-03-29
- Inventor: Hiroshi SHIMADA , lssei NAKASHIMA , Masayuki IMAIDA
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi
- Priority: JP2016-190364 20160928
- Main IPC: A61H3/00
- IPC: A61H3/00 ; A63B21/00 ; A63B23/035 ; A61H1/02

Abstract:
A walking assistance apparatus includes frames, at least one leg joint part that connects the frames, a drive unit for driving the leg joint part, a controller for controlling the drive unit so that the drive unit generates a first driving force to assist the walking motion, and an acquisition unit for acquiring an assisting level based on which a magnitude of an assisting force of the drive unit is determined when the walking motion is assisted. The controller controls the first driving force of the drive unit according to the acquired assisting level. The controller controls the drive unit so that the drive unit generates a driving force when the acquired assisting level is equal to or lower than a predetermined level, the driving force being obtained by reducing the first driving force by a second driving force corresponding to a friction force caused in the leg joint part.
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