Passification of electrohydraulic valves using bond graphs

Perry Y. Li; Roger F. Ngwompo

doi:10.3182/20020721-6-es-1901.01231

Passification of electrohydraulic valves using bond graphs

Perry Y. Li, Roger F. Ngwompo

Mechanical Engineering

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

4 Scopus citations

Abstract

In many applications that require physical interaction with humans or other physical environments, passivity is a useful property to have in order to improve safety and ease of use. Many hydraulic applications (e.g. a human operated excavator) fall into this category. In a previous work, the passivity property of a directional hydraulic flow control valve, and methods for making the valve in a passive two-port system were proposed. In this paper, the problem of developing passifying control laws for directional control valves is re-visited from a bond graph perspective. Two new bond graph elements with power scaling properties are first introduced and the passivity property of bondgraphs containing these elements are investigated. Then by representing the control valve in a suitable augmented bond graph, and by replacing the signal bonds with power scaling elements, it is shown that passifying control laws can easily be recovered and generalized.

Original language	English (US)
Title of host publication	IFAC Proceedings Volumes (IFAC-PapersOnline)
Editors	Gabriel Ferrate, Eduardo F. Camacho, Luis Basanez, Juan. A. de la Puente
Publisher	IFAC Secretariat
Pages	31-36
Number of pages	6
Edition	1
ISBN (Print)	9783902661746
DOIs	https://doi.org/10.3182/20020721-6-es-1901.01231
State	Published - 2002
Event	15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain Duration: Jul 21 2002 → Jul 26 2002

Publication series

Name	IFAC Proceedings Volumes (IFAC-PapersOnline)
Number	1
Volume	15
ISSN (Print)	1474-6670

Other

Other	15th World Congress of the International Federation of Automatic Control, 2002
Country/Territory	Spain
City	Barcelona
Period	7/21/02 → 7/26/02

Bibliographical note

Publisher Copyright:
Copyright © 2002 IFAC.

Keywords

Bond graphs
Control valves
Electro-hydraulics
Passivity
Power transformer

Publisher link

10.3182/20020721-6-es-1901.01231

Find It

Find It at U of M Libraries

Cite this

Passification of electrohydraulic valves using bond graphs. / Li, Perry Y.; Ngwompo, Roger F.
IFAC Proceedings Volumes (IFAC-PapersOnline). ed. / Gabriel Ferrate; Eduardo F. Camacho; Luis Basanez; Juan. A. de la Puente. 1. ed. IFAC Secretariat, 2002. p. 31-36 (IFAC Proceedings Volumes (IFAC-PapersOnline); Vol. 15, No. 1).

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

Li, PY & Ngwompo, RF 2002, Passification of electrohydraulic valves using bond graphs. in G Ferrate, EF Camacho, L Basanez & JA de la Puente (eds), IFAC Proceedings Volumes (IFAC-PapersOnline). 1 edn, IFAC Proceedings Volumes (IFAC-PapersOnline), no. 1, vol. 15, IFAC Secretariat, pp. 31-36, 15th World Congress of the International Federation of Automatic Control, 2002, Barcelona, Spain, 7/21/02. https://doi.org/10.3182/20020721-6-es-1901.01231

@inproceedings{45ff052f69bb4667b7403e7eaaca8757,

title = "Passification of electrohydraulic valves using bond graphs",

abstract = "In many applications that require physical interaction with humans or other physical environments, passivity is a useful property to have in order to improve safety and ease of use. Many hydraulic applications (e.g. a human operated excavator) fall into this category. In a previous work, the passivity property of a directional hydraulic flow control valve, and methods for making the valve in a passive two-port system were proposed. In this paper, the problem of developing passifying control laws for directional control valves is re-visited from a bond graph perspective. Two new bond graph elements with power scaling properties are first introduced and the passivity property of bondgraphs containing these elements are investigated. Then by representing the control valve in a suitable augmented bond graph, and by replacing the signal bonds with power scaling elements, it is shown that passifying control laws can easily be recovered and generalized.",

keywords = "Bond graphs, Control valves, Electro-hydraulics, Passivity, Power transformer",

author = "Li, {Perry Y.} and Ngwompo, {Roger F.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2002 IFAC.; 15th World Congress of the International Federation of Automatic Control, 2002 ; Conference date: 21-07-2002 Through 26-07-2002",

year = "2002",

doi = "10.3182/20020721-6-es-1901.01231",

language = "English (US)",

isbn = "9783902661746",

series = "IFAC Proceedings Volumes (IFAC-PapersOnline)",

publisher = "IFAC Secretariat",

number = "1",

pages = "31--36",

editor = "Gabriel Ferrate and Camacho, {Eduardo F.} and Luis Basanez and {de la Puente}, {Juan. A.}",

booktitle = "IFAC Proceedings Volumes (IFAC-PapersOnline)",

edition = "1",

}

TY - GEN

T1 - Passification of electrohydraulic valves using bond graphs

AU - Li, Perry Y.

AU - Ngwompo, Roger F.

PY - 2002

Y1 - 2002

N2 - In many applications that require physical interaction with humans or other physical environments, passivity is a useful property to have in order to improve safety and ease of use. Many hydraulic applications (e.g. a human operated excavator) fall into this category. In a previous work, the passivity property of a directional hydraulic flow control valve, and methods for making the valve in a passive two-port system were proposed. In this paper, the problem of developing passifying control laws for directional control valves is re-visited from a bond graph perspective. Two new bond graph elements with power scaling properties are first introduced and the passivity property of bondgraphs containing these elements are investigated. Then by representing the control valve in a suitable augmented bond graph, and by replacing the signal bonds with power scaling elements, it is shown that passifying control laws can easily be recovered and generalized.

AB - In many applications that require physical interaction with humans or other physical environments, passivity is a useful property to have in order to improve safety and ease of use. Many hydraulic applications (e.g. a human operated excavator) fall into this category. In a previous work, the passivity property of a directional hydraulic flow control valve, and methods for making the valve in a passive two-port system were proposed. In this paper, the problem of developing passifying control laws for directional control valves is re-visited from a bond graph perspective. Two new bond graph elements with power scaling properties are first introduced and the passivity property of bondgraphs containing these elements are investigated. Then by representing the control valve in a suitable augmented bond graph, and by replacing the signal bonds with power scaling elements, it is shown that passifying control laws can easily be recovered and generalized.

KW - Bond graphs

KW - Control valves

KW - Electro-hydraulics

KW - Passivity

KW - Power transformer

UR - http://www.scopus.com/inward/record.url?scp=84945579908&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84945579908&partnerID=8YFLogxK

U2 - 10.3182/20020721-6-es-1901.01231

DO - 10.3182/20020721-6-es-1901.01231

M3 - Conference contribution

AN - SCOPUS:84945579908

SN - 9783902661746

T3 - IFAC Proceedings Volumes (IFAC-PapersOnline)

SP - 31

EP - 36

BT - IFAC Proceedings Volumes (IFAC-PapersOnline)

A2 - Ferrate, Gabriel

A2 - Camacho, Eduardo F.

A2 - Basanez, Luis

A2 - de la Puente, Juan. A.

PB - IFAC Secretariat

T2 - 15th World Congress of the International Federation of Automatic Control, 2002

Y2 - 21 July 2002 through 26 July 2002

ER -

Passification of electrohydraulic valves using bond graphs

Abstract

Publication series

Other

Bibliographical note

Keywords

Publisher link

Find It

Other files and links

Fingerprint

Cite this