JRM Vol.16 No.4 pp. 434-442
doi: 10.20965/jrm.2004.p0434


The Evaluation of Agreement Between Dynamics of Electric Wheelchair and Human Behavior

Shigenobu Shimada*, Kosei Ishimura**, and Mitsuo Wada**

*Division of Systems and Information Engineering, Graduate School of Engineering, Hokkaido University

**Division of Synergetic Information Science, Graduate School of Information Science and Technology, Hokkaido University, N14-W9, Kita-ku, Sapporo 060-0814, Japan

December 25, 2003
June 10, 2004
August 20, 2004
electric wheelchair, human factors, measurement, vibration, dynamic stability
We studied the problem of interaction of movement between the electric wheelchair and the user. Almost all current products have indexes such as roll stability and operability, but such indexes do not always agree with user behavior because such indexes are static. Another problem arises from the fact that the disagreement of movement causes uncontrollable situations and turnover of the wheelchairs. We evaluated wheelchairs that consider user behavior, first in an experiment to understand the cause of disagreement among users during movement by measuring straight line ands turning, then, based on this result, derived a mathematical model for disagreement in wheelchair motion. Computer simulation, showed that vibration occurred within certain parameters. We present simple roll stability analysis of wheelchairs turning. Simulation confirmed the viability of our proposals.
Cite this article as:
S. Shimada, K. Ishimura, and M. Wada, “The Evaluation of Agreement Between Dynamics of Electric Wheelchair and Human Behavior,” J. Robot. Mechatron., Vol.16 No.4, pp. 434-442, 2004.
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