Adaptive Pulse Width Control for Precise Positioning Under the Influence of Stiction and Coulomb Friction
1988 ◽
Vol 110
(3)
◽
pp. 221-227
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Keyword(s):
Conventional linear digital control fails to provide precise positioning of a control object under the influence of static friction, Coulomb friction, and backlash. This paper presents an adaptive pulse width control (PWC) scheme for a precise point-to-point positioning system. This scheme is developed based on the relationship between the displacement of a control object due to a single pulse input and the pulse width. The coefficient appearing in this relationship is estimated by a parameter adaptation algorithm. Sufficient conditions for asymptotic stability of this adaptive scheme are developed using Popov hyperstability theorem. This adaptive PWC is tested on a laboratory positioning table and is shown to be effective.
2004 ◽
Vol 126
(1)
◽
pp. 131-138
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Keyword(s):
2009 ◽
Vol 297
(4)
◽
pp. G672-G680
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Keyword(s):
2010 ◽
Vol 154-155
◽
pp. 429-432
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Keyword(s):
Keyword(s):
2004 ◽
Vol 127
(4)
◽
pp. 307-314
◽
2000 ◽
Vol 37
(3)
◽
pp. 259-267
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1968 ◽
Vol 10
(4)
◽
pp. 346-359
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Keyword(s):
2011 ◽
Vol 694
◽
pp. 700-703
◽
2010 ◽
Vol 53
(S1)
◽
pp. 69-72
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