[Updated on Apr. 18] Integration of CiNii Articles into CiNii Research

2P1-F03 Power Assist Control of Exoskeletal Hydrostatic Robot Based on Singular Perturbation Control using Pressure Feedback(Welfare Robotics and Mechatronics(1))

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  • 2P1-F03 圧力フィードバックを用いた特異摂動法に基づく電気静油圧駆動パワーアシストの制御(福祉ロボティクス・メカトロニクス(1))

Abstract

Power assist robots need to estimate human motion to extend human physical abilities appropriately. In this paper, a control method for a knee power assist device using Electro-Hydrostatic Actuator(EHA) is proposed by using the fact that EHA is a singular perturbation system. The controller is based on singular perturbation control and uses disturbance observer to estimate external torque applied by operator. The estimated torque is used to increase sensitivity of the system by feedback control. The efficacy of the proposed method is evaluated by measured iEMG.

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