Passification of an electrohydraulic two-stage pressure control servo-valve

Kailash Krishnaswamy; Perry Y Li

doi:10.1109/ACC.2002.1025423

Passification of an electrohydraulic two-stage pressure control servo-valve

Kailash Krishnaswamy, Perry Y Li

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Scopus citations

Abstract

Passive systems have the beneficial property that their interconnections with other passive systems result in necessarily stable systems. This virtue of passive systems can be exploited with hydraulic systems to build powerful machines that are safe and human friendly. A difficulty in applying the passivity concept to electrohydraulic systems is that they are not intrinsically passive. In a previous paper, passification techniques were developed to render single-stage directional control valves as passive two-port devices with a supply rate related to the power input at the hydraulic port. In this paper, we extend the passification technique to two stage pressure control servo-valves. The passified two-stage valve avoids the flow rate and bandwidth limitations that exist for single-stage valves.

Original language	English (US)
Title of host publication	Proceedings of the American Control Conference
Pages	4831-4836
Number of pages	6
DOIs	https://doi.org/10.1109/ACC.2002.1025423
State	Published - Sep 6 2002
Event	2002 American Control COnference - Anchorage, AK, United States Duration: May 8 2002 → May 10 2002

Publication series

Name	Proceedings of the American Control Conference
Volume	6
ISSN (Print)	0743-1619

Other

Other	2002 American Control COnference
Country/Territory	United States
City	Anchorage, AK
Period	5/8/02 → 5/10/02

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10.1109/ACC.2002.1025423

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title = "Passification of an electrohydraulic two-stage pressure control servo-valve",

abstract = "Passive systems have the beneficial property that their interconnections with other passive systems result in necessarily stable systems. This virtue of passive systems can be exploited with hydraulic systems to build powerful machines that are safe and human friendly. A difficulty in applying the passivity concept to electrohydraulic systems is that they are not intrinsically passive. In a previous paper, passification techniques were developed to render single-stage directional control valves as passive two-port devices with a supply rate related to the power input at the hydraulic port. In this paper, we extend the passification technique to two stage pressure control servo-valves. The passified two-stage valve avoids the flow rate and bandwidth limitations that exist for single-stage valves.",

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year = "2002",

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doi = "10.1109/ACC.2002.1025423",

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AU - Krishnaswamy, Kailash

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N2 - Passive systems have the beneficial property that their interconnections with other passive systems result in necessarily stable systems. This virtue of passive systems can be exploited with hydraulic systems to build powerful machines that are safe and human friendly. A difficulty in applying the passivity concept to electrohydraulic systems is that they are not intrinsically passive. In a previous paper, passification techniques were developed to render single-stage directional control valves as passive two-port devices with a supply rate related to the power input at the hydraulic port. In this paper, we extend the passification technique to two stage pressure control servo-valves. The passified two-stage valve avoids the flow rate and bandwidth limitations that exist for single-stage valves.

AB - Passive systems have the beneficial property that their interconnections with other passive systems result in necessarily stable systems. This virtue of passive systems can be exploited with hydraulic systems to build powerful machines that are safe and human friendly. A difficulty in applying the passivity concept to electrohydraulic systems is that they are not intrinsically passive. In a previous paper, passification techniques were developed to render single-stage directional control valves as passive two-port devices with a supply rate related to the power input at the hydraulic port. In this paper, we extend the passification technique to two stage pressure control servo-valves. The passified two-stage valve avoids the flow rate and bandwidth limitations that exist for single-stage valves.

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ER -

Passification of an electrohydraulic two-stage pressure control servo-valve

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