Proceedings 1995 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human Robot Interaction and Cooperative R
DOI: 10.1109/iros.1995.525857
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Experiments in dexterous hybrid force and position control of a master/slave electrohydraulic manipulator

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Cited by 7 publications
(5 citation statements)
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“…It normally requires knowledge of the manipulator and the environment stiffness for accurate position/force regulation. The second approach, which has been adopted in this paper, employs a switching control scheme consisting of different individually designed control laws for different stages of motion [4][5][6][7]. Switching between the controllers is then based on detection of discrete events such as the first non-zero contact force observed by sensors.…”
Section: Introductionmentioning
confidence: 99%
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“…It normally requires knowledge of the manipulator and the environment stiffness for accurate position/force regulation. The second approach, which has been adopted in this paper, employs a switching control scheme consisting of different individually designed control laws for different stages of motion [4][5][6][7]. Switching between the controllers is then based on detection of discrete events such as the first non-zero contact force observed by sensors.…”
Section: Introductionmentioning
confidence: 99%
“…(x 4 , x 5 ) = P S −P e 2 +sign(x 5 ) x 4 − P S +P e p P |x 3 − x 4 | tanh(ax5 )+ K x P (x 1 − x des )), u = u P −(K p I |x 3 − x 4 | tanh(ax 5 )+ K x I (x 1 − x env )), u = u I − K p C x 3 − x 4 − F des A tanh(ax 5 )+ K f (H (x 1 − x env ) n − F des ) , u = u F g 6 (x 3 , x 4 , x 5 ) = P s −tanh(a x 5 )(x 3 − x 4 ) g 7 (x 3 , x 4 , x 5 ) = ⎧ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎩ K p P sign(x 3 − x 4 ) tanh(ax 5 )g 6 , u = u P K p I sign(x 3 − x 4 ) tanh(ax 5 )g 6 , u = u I K p C sign(x 3 − x 4 − F des /A) tanh(ax 5 )g 6 , u = u F g 8 (x 3 , x 4 , x 5 ) = ⎧ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎩ aK p P |x 3 − x 4 |(1−tanh 2 (ax 5 )), u = u P aK p I |x 3 − x 4 |(1−tanh 2 (ax 5 )), u = u I aK p C |x 3 − x 4 − F des /A|(1−tanh 2 (ax 5 )), u = u F g 9 (x 1 , x 3 , x 4 , x 5 ) = g 8 g 6 + a(x 3 − x 4 )(1−tanh 2 (ax 5 ))g 5 2g 6 x 2 ) = ⎧ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎩ − n H(1+ px 2 )(x 1 − x env ) n−1 m (x 1 − xenv 0) and (1+ px 2 0) and (x i 2 = 0) − n H(x 1 − x env ) n−1 m (x 1 − x env 0) and (x i 2 x env ) n (x 1 − x env 0) and (1+ px 2 0) and (x i 2 , u = u I nK f H (x 1 − x env ) n−1 , u = u F Copyright q 2009 John Wiley & Sons, Ltd. Int. J.…”
mentioning
confidence: 99%
“…The existing literature mainly includes explicit force (Alleyne, 1996;Liu & Alleyne, 2000;Wu, Sepehri, & Ziaei, 1998) or hybrid position/force controllers (Bluethmann, Ananthakrishnan, Scheerer, Faddis, & Greenway, 1995;Clegg, Dunnigan, & Lane, 2001;Dunnigan, Lane, Clegg, & Edwards, 1996) which are capable of regulating contact force in the constrained phase of motion. The restrictive assumption in the above studies is that the actuator is always in contact with the environment.…”
Section: Introductionmentioning
confidence: 99%
“…Στις [26], [222] παρουσιάζονται σχήµατα ελέγχου δύναµης, τα οποία εφαρµόζονται σε πραγµατικά σερβοϋδραυλικά συστήµατα. Στη µελέτη της δυναµικής δεν συµπεριλαµβάνονται τα µοντέλα των σερβοβαλβίδων.…”
Section: Bιβλιογραφική Aνασκόπησηunclassified
“…Στη βιβλιογραφία ο έλεγχος εµπέδησης συναντάται περισσότερο σε ηλεκτροµηχανικά οδηγούµενα συστήµατα, πχ. [51], [126], [127], [135], [212], [220], όµως πλέον αρχίζει να εφαρµόζεται τόσο σε υδραυλικά [13], [26], [63], [180], [326], όσο και σε πνευµατικά σερβοσυστήµατα. Η ποσοτική περιγραφή της κατάστασης αλληλεπίδρασης είναι η δύναµη επαφής µεταξύ του τελικού σηµείου δράσης (τ.σ.δ.)…”
Section: έλεγχος εµπέδησης βασισµένος στο μοντέλο (Model-basedunclassified