A hard contact is an impact that occurs when the robot contacts a stiff environment with a high velocity. In the pretransition phase of the hard contact, it is important to maintain stability while reducing succeeding force peaks and the duration time. For these purposes, we propose two control methods. One is a suppression controller that suppresses position rebounds in-between the impact time. The other is a flexible-damped joint with a joint damping controller. The flexible-damped joint is a new joint type designed to increase the hardware damping. It is controlled by a novel controller, called the joint damping controller, to enhance damping. The major advantage of the proposed methods is a guaranteed stability. The performance of the proposed methods is validated via several comparative experiments.
Issue Section:
Technical Papers
1.
An
, C. H.
, 1986, “Trajectory and Force Control of a Direct Drive Arm
,” Ph.D. thesis, MIT.2.
Walker
, I. D.
, 1994, “Impact Configurations and Measures for Kinematically Redundant and Multiple Armed Robot Systems
,” IEEE Trans. Rob. Autom.
1042-296X, 10
, pp. 670
–683
.3.
Kim
, J.
, Chung
, W. K.
, and Youm
, Y.
, 2000, “Normalized Impact Elipsoid and Performance Index for Redundant Manipulators
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, pp. 1714
–1719
.4.
Yamada
, Y.
, Suita
, K.
, Imai
, K.
, Ikeda
, H.
, and Sugimoto
, N.
, 1996, “A Failure-to-Safety Robot System for Human-Robot Coexistence
,” Rob. Auton. Syst.
0921-8890, 18
, pp. 283
–291
.5.
Hogan
, N.
, 1987, “Stable Execution of Contact Tasks Using Impedance Control
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York
, pp. 1047
–1054
.6.
Volpe
, R. A.
, and Khosla
, P.
, 1993, “A Theoretical and Experimental Investigation of Impact Control for Manipulators
,” Int. J. Robot. Res.
0278-3649, 12
, pp. 351
–365
.7.
Han
, J. D.
, Wang
, Y. C.
, Tan
, D. L.
, and Xu
, W. L.
, 1999, “Experimental Investigation Into Contact Transition Control With Joint Acceleration Feedback Damping
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New Yark
, pp. 251
–256
.8.
Qian
, H. P.
, and Schutter
, J. D.
, 1992, “Introducing Active Linear and Nonlinear Damping to Enable Stable High Gain Force Control in Case of Stiff Contact
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York
, pp. 1374
–1379
.9.
Khatib
, O.
, and Burdick
, J.
, 1986, “Motion and Force Control of Robot Manipulators
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York
, pp. 1381
–1386
.10.
Wu
, Y.
, Tarn
, T. J.
, Xi
, N.
, and Isidori
, A.
, 1996, “On Robust Impact Control via Positive Acceleration Feedback for Robot Manipulators
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York
, pp. 1891
–1896
.11.
Volpe
, R. A.
, 1990, “Real and Artificial Forces in the Control of Manipulators: Theory and Experiments
,” Ph.D. thesis, CMU.12.
Youcef-toumi
, K.
, and Gutz
, D. A.
, 1994, “Impact and Force Control: Modeling and Exepriments
,” ASME J. Dyn. Syst., Meas., Control
0022-0434, 116
, 89
–98
.13.
Xu
, Y.
, Hollerbach
, J. M.
, and Ma
, D.
, 1994, “Force and Contact Transient Control Using Nonlinear PD Control
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York
, pp. 924
–930
.14.
Fowler
, H. C.
, and Eppinger
, S. D.
, 1991, “Bandwidth Performance of a Direct Drive Manipulator Under Joint Torque and Endpoint Forceontrol
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York
, pp. 230
–237
.15.
Marth
, G. T.
, Tarn
, T. J.
, and Bejczy
, A. K.
, 1994, “An Event Based Approach to Impact Control: Theory and experiments
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, pp. 918
–923
.16.
Chiu
, D.
, and Lee
, S.
, 1996, “Design and Experimentation of Jump Impact Controller
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York, pp. 1903
–1908
.17.
Hyde
, J. M.
, and Cutkosky
, M. R.
, 1993, “Contact Transition Control: An Experimental Study
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York, pp. 363
–368
.18.
Smith
, O. J. M.
, Feedback Control Systems
, McGraw-Hill
, New York
.19.
Hung
, J. Y.
, 2003, “Feedback Control With Posicast
,” IEEE Trans. Ind. Electron.
0278-0046, 50
, 94
–99
.20.
Pratt
, G. A.
, and Williamson
, M. M.
, 1995, “Series Elastic Actuators
,” Proc. of IEEE/RSJ Int. Conf. on Intelligent Robots and Systems
, IEEE
, New York, pp. 399
–406
.21.
Robinson
, D. W.
, Pratt
, J. E.
, Paluska
, D. J.
, and Pratt
, G. A.
, 1999, “Series elastic actuator development for a biomimetic walking robot
,” Proc. of IEEE/ASME Int. Conf. on Advanced Intelligent Mechatronics
, IEEE
, New York, ASME, New York, pp. 561
–568
.22.
Pratt
, G. A.
, Willisson
, P.
, Boloton
, C.
, and Hofman
, A.
, 2004, “Late Motor Processing in Low-Impedance Robots: Impedance Control of Series-Elastic Actuators
,” Proc. of American Control Conference
, AACC
, Dayton, pp. 3245
–3251
.23.
Sulzer
, J. S.
, Peshkin
, M. A.
, and Patton
, J. L.
, 2005, “MARIONET: An Exotendon-Driven Rotary Series Elastic Acutator for Exerting Joint Torque
,” Proc. of IEEE Int. Conf. on Rehabilitation Robotics
, IEEE
, New York, pp. 103
–108
.24.
Pratt
, J. E.
, Krupp
, B. T.
, and Morse
, C. J.
, 2004, “The RoboKnee: An Exoskeleton for Enhancing Strength and Endurance During Walking
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York, pp. 2430
–2435
.25.
Sensinger
, J. W.
, and Weir
, R. F.
, 2005, “Design and Analysis of a Non-Backdrivable Series Elastic Actuator
,” Proc. of IEEE Int. Conf. on Rehabilitation Robotics
, IEEE
, New York, pp. 390
–393
.26.
Surdilovic
, D.
, 1996, “Contact Stability Issues in Position Based Impedance Control: Theory and Experiments
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York, pp. 1675
–1680
.27.
Marth
, G. T.
, Tarn
, T. J.
, and Bejczy
, A. K.
, 1993, “Stable Phase Transition Control for Robot Arm Motion
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York, pp. 355
–362
.28.
Qian
, H. P.
, and Schutter
, J. D.
, 1992, “The Role of Damping and Low Pass Filtering in the Stability of Discrete Time Implemented Robot Force Control
,” Proc. of IEEE Int. Conf. on Robotics and Automation
, IEEE
, New York, pp. 1368
–1373
.29.
Oh
, Y. H.
, and Chung
, W. K.
, 1999, “Analysis of a Robot System With a Passive Damper for Force and Impact Control
,” Adv. Rob.
0169-1864, 13
(1
), pp. 1
–24
.30.
Branicky
, M. S.
, 1998, “Multiple Lyapunov Functions and Other Analysis Tools for Switched and Hybrid Systems
,” IEEE Trans. Autom. Control
0018-9286, 43
, pp. 475
–482
.Copyright © 2007
by American Society of Mechanical Engineers
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