WO2001044681A3 - Hybrid digital-analog controller - Google Patents

Hybrid digital-analog controller Download PDF

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Publication number
WO2001044681A3
WO2001044681A3 PCT/US2000/042182 US0042182W WO0144681A3 WO 2001044681 A3 WO2001044681 A3 WO 2001044681A3 US 0042182 W US0042182 W US 0042182W WO 0144681 A3 WO0144681 A3 WO 0144681A3
Authority
WO
WIPO (PCT)
Prior art keywords
analog controller
hybrid digital
controller
control
digital
Prior art date
Application number
PCT/US2000/042182
Other languages
French (fr)
Other versions
WO2001044681A9 (en
WO2001044681A2 (en
Inventor
Clark Radcliffe
Charles B Birdsong
Original Assignee
Univ Michigan State
Clark Radcliffe
Charles B Birdsong
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Michigan State, Clark Radcliffe, Charles B Birdsong filed Critical Univ Michigan State
Priority to AU47085/01A priority Critical patent/AU4708501A/en
Publication of WO2001044681A2 publication Critical patent/WO2001044681A2/en
Publication of WO2001044681A3 publication Critical patent/WO2001044681A3/en
Publication of WO2001044681A9 publication Critical patent/WO2001044681A9/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/0205—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system
    • G05B13/024—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system in which a parameter or coefficient is automatically adjusted to optimise the performance
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B21/00—Systems involving sampling of the variable controlled
    • G05B21/02—Systems involving sampling of the variable controlled electric

Abstract

A Hybrid Digital-Analog controller (10) configured to dynamically adjust the gains of the control parameters of an analog controller (20) to optimize the control parameters of a monitored controlled variable. The controller (10) receives a sampled signal representative of the controlled variable, and creates a digital control signal (40) based on the sampled signal. The analog controller (20) has a plurality of digitally variable resistors (45) which control the gains of the analog controller (20).
PCT/US2000/042182 1999-11-17 2000-11-16 Hybrid digital-analog controller WO2001044681A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47085/01A AU4708501A (en) 1999-11-17 2000-11-16 Hybrid digital-analog controller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16598999P 1999-11-17 1999-11-17
US60/165,989 1999-11-17

Publications (3)

Publication Number Publication Date
WO2001044681A2 WO2001044681A2 (en) 2001-06-21
WO2001044681A3 true WO2001044681A3 (en) 2002-09-12
WO2001044681A9 WO2001044681A9 (en) 2002-11-14

Family

ID=22601327

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042182 WO2001044681A2 (en) 1999-11-17 2000-11-16 Hybrid digital-analog controller

Country Status (2)

Country Link
AU (1) AU4708501A (en)
WO (1) WO2001044681A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10043128C2 (en) * 2000-08-31 2003-05-08 Univ Hannover Absorber device for absorbing unwanted excitation
US7866147B2 (en) 2005-09-30 2011-01-11 Southwest Research Institute Side branch absorber for exhaust manifold of two-stroke internal combustion engine
US7946382B2 (en) 2006-05-23 2011-05-24 Southwest Research Institute Gas compressor with side branch absorber for pulsation control
US8123498B2 (en) 2008-01-24 2012-02-28 Southern Gas Association Gas Machinery Research Council Tunable choke tube for pulsation control device used with gas compressor
US8565052B2 (en) 2011-06-20 2013-10-22 Optical Devices, Llc Methods, systems, and computer program products for correcting repeatable runout
US9279317B2 (en) * 2013-03-14 2016-03-08 Baker Hughes Incorporated Passive acoustic resonator for fiber optic cable tubing
WO2019005824A1 (en) * 2017-06-30 2019-01-03 Imra America, Inc. Precision frequency combs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355305A (en) * 1992-10-29 1994-10-11 Johnson Service Company Pattern recognition adaptive controller
WO1995020827A1 (en) * 1994-01-27 1995-08-03 Active Control Experts, Inc. Packaged strain actuator
US5823307A (en) * 1994-04-04 1998-10-20 Technical Manufacturing Corporation Stiff actuator active vibration isolation system
EP0886079A2 (en) * 1997-06-18 1998-12-23 Deutsches Zentrum für Luft- und Raumfahrt e.V. Method and apparatus for vibration damping using a dynamic mass
US5919029A (en) * 1996-11-15 1999-07-06 Northrop Grumman Corporation Noise absorption system having active acoustic liner
WO2000045067A1 (en) * 1999-01-28 2000-08-03 Active Control Experts, Inc. Method and device for vibration control
US6134964A (en) * 1997-09-11 2000-10-24 Daimlerchrysler Ag Mechanical resonator having a variable resonance frequency

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355305A (en) * 1992-10-29 1994-10-11 Johnson Service Company Pattern recognition adaptive controller
WO1995020827A1 (en) * 1994-01-27 1995-08-03 Active Control Experts, Inc. Packaged strain actuator
US5823307A (en) * 1994-04-04 1998-10-20 Technical Manufacturing Corporation Stiff actuator active vibration isolation system
US5919029A (en) * 1996-11-15 1999-07-06 Northrop Grumman Corporation Noise absorption system having active acoustic liner
EP0886079A2 (en) * 1997-06-18 1998-12-23 Deutsches Zentrum für Luft- und Raumfahrt e.V. Method and apparatus for vibration damping using a dynamic mass
US6134964A (en) * 1997-09-11 2000-10-24 Daimlerchrysler Ag Mechanical resonator having a variable resonance frequency
WO2000045067A1 (en) * 1999-01-28 2000-08-03 Active Control Experts, Inc. Method and device for vibration control

Also Published As

Publication number Publication date
WO2001044681A9 (en) 2002-11-14
WO2001044681A2 (en) 2001-06-21
AU4708501A (en) 2001-06-25

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