日本ロボット学会誌
Online ISSN : 1884-7145
Print ISSN : 0289-1824
ISSN-L : 0289-1824
ロボットマニピュレータにおける力制御のロバスト化と衝突過程の制御
志村 康治堀 洋一
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1993 年 11 巻 2 号 p. 235-245

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It is important that we control a robot manipulator considering contact with an object. In force control we have two difficulties caused by (1) environmental parameter change and (2) large contact force at collision. The collision always happens in a short transient period from trajectory control to force control. In this paper, we propose a robustifid force and collision control method. First, we designed TDOF (Two Degrees Of Freedom) force controller. This force controller enables us to obtain stable and fast response in the face of considerable environmental parameter variation. Next, in order to reduce the shock and also to change control modes smoothly from position to force, we proposed a novel collision control method by using feedforward position command together with the robust force controller based on position. We realized these proposals by using a TRANSPUTER based con-troller and confirmed their usefulness with experiments by using a 1-axis and a lifesize 6-axis mani-pulator.

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