GB1324445A - Electromagnetic actuator having regulation of the force on the armature - Google Patents

Electromagnetic actuator having regulation of the force on the armature

Info

Publication number
GB1324445A
GB1324445A GB1029671A GB1029671A GB1324445A GB 1324445 A GB1324445 A GB 1324445A GB 1029671 A GB1029671 A GB 1029671A GB 1029671 A GB1029671 A GB 1029671A GB 1324445 A GB1324445 A GB 1324445A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
voltage
sp
gt
lt
field
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1029671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Getriebe KG
Original Assignee
Voith Getriebe KG
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

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F7/00Regulating magnetic variables

Abstract

1324445 Hydraulic motor control circuits VOITH GETRIEBE KG 20 April 1971 [22 April 1970] 10296/71 Heading F1P [Also in Divisions G3 and H1] An electromagnetic actuator 1 comprises a coil 2 surrounded by iron cladding 3, 3<SP>1</SP> and an armature 4 axially movable therein in opposition to a projecting polepiece 5 against a spring 7; a fieldstrength sensitive resistor 8 being fixed to the face of 5 and connected in a resistor bridge circuit 8, 14, 15, 16 energized from source 11 and having an adjustable slider 165 between 15, 16. The voltages at bridge points 148, 165 are compared over in series resistors 23, 24 at inputs + E, - E of amplifier V and are initially equal, so that a fall of resistance of 8 produces a rise of voltage at 148 and at the amplifier output to open transistor T 1 and to drive power transistor T 2 to excite coil 2 from the source and impel the armature against spring 7. Buildup of field increases resistance of 8 and reduces voltage at 148, so that the amplifier output becomes increasingly negative related to zero, and closes transistor T 1 and power transistor T 2 to de-energize coil 2. Bypass diode D across the coil allows exponential decay of the resultant field, spring 7 expands, the flux in 8 is reduced, and consequently coil 2 is again energized, to initiate a continuous squarewave on-off pulsation of the coil energization whose frequency is dependent on the difference between the voltage drop across 8 and the pre-set value set by sliders 65, so that the field is stabilized at a pre-set value. In a modification, Fig. 2, resistors 15, 16 are fixed and the amplifier receives the voltage from point 148 of the bridge in opposition to voltage from a tacho generator, or from a generator of e.g. a sinusoid or ramp function on receipt of e.g. a trigger signal. The actuator operates the piston 4<SP>1</SP> of a hydraulic limit valve having control lands 18, 19 restricting the volumetric flow of pump 20; the pressure fluid being connected to, the inner end face of the armature through bores 4<SP>1</SP> to act against the pull-in thereof. A reducing pin 7<SP>1</SP> on core 5 slides pressure tightly in bore 4<SP>1</SP> to limit the pull in, and the system operates to control and limit the delivery pressure. In a modification, Fig. 3 (not shown) the armature field excites a Hall plate to generate a flux voltage to excite the amplifier in opposition to a pre-set voltage, and to energize or deenergize the field through a series diode to produce similar pulsating energization, and a function voltage generator may furnish the Hall plate excitation. In a further modification, Fig.4 (not shown) an auxiliary winding of the field coil may produce voltage proportional to armature flux change which is integrated by a capacitance feedback amplifier to represent total field flux. The field coil itself represented by inductance in series with resistance may produce across the latter a direct voltage superimposed on a voltage representing the rate of change of the field, which is CR differentiated to reverse DC and double integrated in capacitance feedback amplifiers to produce voltage dependent on total field flux, which as before is composed with a pre-set or function voltage to control the pulsating field energization, Fig. 5 (not shown).
GB1029671A 1970-04-22 1971-04-20 Electromagnetic actuator having regulation of the force on the armature Expired GB1324445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702019345 DE2019345C3 (en) 1970-04-22 1970-04-22

Publications (1)

Publication Number Publication Date
GB1324445A true true GB1324445A (en) 1973-07-25

Family

ID=5768784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1029671A Expired GB1324445A (en) 1970-04-22 1971-04-20 Electromagnetic actuator having regulation of the force on the armature

Country Status (6)

Country Link
US (1) US3671814A (en)
JP (1) JPS5532208B1 (en)
DE (1) DE2019345C3 (en)
FR (1) FR2086243B1 (en)
GB (1) GB1324445A (en)
NL (1) NL164684C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246739A1 (en) * 1981-12-21 1983-06-30 Gen Electric Schaltschuetz with flux sensor
US4450427A (en) * 1981-12-21 1984-05-22 General Electric Company Contactor with flux sensor
GB2146846A (en) * 1983-09-16 1985-04-24 Lucas Ind Plc Temperature compensated solenoid device
GB2197998A (en) * 1984-11-12 1988-06-02 Inst Elektroswarki Patona Electromagnetic driver for producing a pulsating axial force in friction welding apparatus
GB2259188A (en) * 1991-08-30 1993-03-03 Mannesmann Ag Detecting the operation of an electromagnetic actuator
GB2392741A (en) * 2002-09-03 2004-03-10 Lear Corp Controlling the strength of a magnetic field

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JPS533073B2 (en) * 1972-07-19 1978-02-02
US3946285A (en) * 1975-02-18 1976-03-23 Burroughs Corporation Solenoid control system with cusp detector
US3988664A (en) * 1975-02-18 1976-10-26 Burroughs Corporation System for predicting or detecting a fault in a solenoid utilization system
DE2657524C3 (en) * 1976-12-18 1981-07-23 Voith Getriebe Kg, 7920 Heidenheim, De
US4393431A (en) * 1980-04-23 1983-07-12 Mcgraw-Edison Company Overcurrent relay circuit
US4368501A (en) * 1980-09-26 1983-01-11 Dover Corporation Control of electro-magnetic solenoid
US4663574A (en) * 1983-09-27 1987-05-05 Dresser Industries, Inc. Reactive position detector for electromagnetic vibrators
DE3415909C2 (en) * 1984-04-28 1987-06-25 J.M. Voith Gmbh, 7920 Heidenheim, De
US4665348A (en) * 1984-08-09 1987-05-12 Synektron Corporation Method for sensing and controlling the position of a variable reluctance actuator
US4659969A (en) * 1984-08-09 1987-04-21 Synektron Corporation Variable reluctance actuator having position sensing and control
US4656400A (en) * 1985-07-08 1987-04-07 Synektron Corporation Variable reluctance actuators having improved constant force control and position-sensing features
US4608620A (en) * 1985-11-14 1986-08-26 Westinghouse Electric Corp. Magnetic sensor for armature and stator
DE3605216C2 (en) * 1986-02-19 1996-05-15 Bosch Gmbh Robert Plunger solenoid
DE3607329C2 (en) * 1986-03-06 1989-11-30 J.M. Voith Gmbh, 7920 Heidenheim, De
DE3613648C2 (en) * 1986-04-23 2000-06-21 Schultz Wolfgang E Method for operating a switching magnet
US5237262A (en) * 1991-10-24 1993-08-17 International Business Machines Corporation Temperature compensated circuit for controlling load current
US5543632A (en) * 1991-10-24 1996-08-06 International Business Machines Corporation Temperature monitoring pilot transistor
US5245261A (en) * 1991-10-24 1993-09-14 International Business Machines Corporation Temperature compensated overcurrent and undercurrent detector
WO1998031034A1 (en) * 1997-01-09 1998-07-16 Siemens Aktiengesellschaft Reduced tensioning time for electronically controlled switch contactors
DE29703587U1 (en) * 1997-02-28 1998-06-25 Fev Motorentech Gmbh & Co Kg Electromagnetic actuator with proximity sensor
US6942469B2 (en) 1997-06-26 2005-09-13 Crystal Investments, Inc. Solenoid cassette pump with servo controlled volume detection
US6208497B1 (en) 1997-06-26 2001-03-27 Venture Scientifics, Llc System and method for servo control of nonlinear electromagnetic actuators
DE19757658B4 (en) * 1997-12-23 2004-09-16 Siemens Ag Electromechanical actuator
US6982323B1 (en) * 1997-12-23 2006-01-03 Alexion Pharmaceuticals, Inc. Chimeric proteins for diagnosis and treatment of diabetes
JPH11356029A (en) * 1998-04-08 1999-12-24 Mikuni Corp Electromagnetic actuator
US5991143A (en) * 1998-04-28 1999-11-23 Siemens Automotive Corporation Method for controlling velocity of an armature of an electromagnetic actuator
US6128175A (en) * 1998-12-17 2000-10-03 Siemens Automotive Corporation Apparatus and method for electronically reducing the impact of an armature in a fuel injector
US6249418B1 (en) 1999-01-27 2001-06-19 Gary Bergstrom System for control of an electromagnetic actuator
US6476599B1 (en) 1999-03-25 2002-11-05 Siemens Automotive Corporation Sensorless method to determine the static armature position in an electronically controlled solenoid device
US6359435B1 (en) 1999-03-25 2002-03-19 Siemens Automotive Corporation Method for determining magnetic characteristics of an electronically controlled solenoid
US6300733B1 (en) 2000-02-22 2001-10-09 Gary E. Bergstrom System to determine solenoid position and flux without drift
DE10224750A1 (en) 2002-06-04 2003-12-24 Fresenius Medical Care De Gmbh An apparatus for treating a medical fluid
US20040246649A1 (en) * 2003-06-03 2004-12-09 Mks Instruments, Inc. Flow control valve with magnetic field sensor
US8282873B2 (en) * 2006-01-03 2012-10-09 Victor Barinov Controlled electrospinning of fibers
US20080112807A1 (en) * 2006-10-23 2008-05-15 Ulrich Uphues Methods and apparatus for operating a wind turbine
WO2011008858A1 (en) 2009-07-15 2011-01-20 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US8328514B2 (en) * 2009-09-11 2012-12-11 General Electric Company System and methods for determining a monitor set point limit for a wind turbine
DE102010039584A1 (en) * 2010-08-20 2012-02-23 Zf Friedrichshafen Ag Magnetic actuator for gear box actuator device of motor car, has sensor unit that is arranged within inner space of housing in axial interstice between armature and magnetic coil for sensing quiescent state position of armature
CN102377377B (en) * 2010-08-23 2013-07-24 第一传动科技股份有限公司 Motor driving circuit
DE102010041423A1 (en) * 2010-09-27 2012-03-29 Robert Bosch Gmbh Method for adjusting size of air gap between armature and hollow cylindrical quiescent state counter-element of magnetic valve, involves determining start position of armature, and stopping movement of armature during reaching position
US9624915B2 (en) 2011-03-09 2017-04-18 Fresenius Medical Care Holdings, Inc. Medical fluid delivery sets and related systems and methods
DE202011004616U1 (en) 2011-03-30 2011-06-09 Bürkert Werke GmbH, 74653 Lifting armature drive
US9610392B2 (en) 2012-06-08 2017-04-04 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9500188B2 (en) * 2012-06-11 2016-11-22 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
DE102012113056B4 (en) * 2012-12-21 2014-07-24 Eto Magnetic Gmbh Electromagnetic actuator
US20160051740A1 (en) * 2014-08-21 2016-02-25 Fenwal, Inc. Magnet-Based Systems And Methods For Transferring Fluid

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US1817431A (en) * 1927-04-16 1931-08-04 Westinghouse Electric & Mfg Co Control apparatus
DE1162461B (en) * 1959-06-15 1964-02-06 A Kofes Dr Ing A process for reversal of electromagnetically generated strokes
DE1093873B (en) * 1959-07-21 1960-12-01 Kloeckner Moeller Elektrizit Arrangement for turning an excited with alternating magnetic drive
US3165675A (en) * 1960-09-29 1965-01-12 First Pennsylvania Banking And Apparatus for producing a magnetic field
US3170095A (en) * 1961-04-04 1965-02-16 Sperry Rand Corp Relay control circuit
US3112962A (en) * 1962-01-17 1963-12-03 Gen Motors Corp Magnetic suspension system
US3241002A (en) * 1962-11-05 1966-03-15 Eaton Mfg Co Control for electromagnetic coupling apparatus
FR1391853A (en) * 1964-01-21 1965-03-12 Varian Associates Device for detecting a magnetic field
FR1439366A (en) * 1965-05-18 1966-05-20 Ceskoslovenska Akademie Ved superstabilisation circuit of a magnetic field
DE1563393B2 (en) * 1966-08-24 1972-06-22 Control means for rectifying elements, which are arranged on a rotating machine part

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246739A1 (en) * 1981-12-21 1983-06-30 Gen Electric Schaltschuetz with flux sensor
US4450427A (en) * 1981-12-21 1984-05-22 General Electric Company Contactor with flux sensor
GB2146846A (en) * 1983-09-16 1985-04-24 Lucas Ind Plc Temperature compensated solenoid device
GB2197998A (en) * 1984-11-12 1988-06-02 Inst Elektroswarki Patona Electromagnetic driver for producing a pulsating axial force in friction welding apparatus
GB2197998B (en) * 1984-11-12 1990-07-18 Inst Elektroswarki Patona Electromagnetic power drive for producing a pulsating axial force in a friction welding machine
GB2259188A (en) * 1991-08-30 1993-03-03 Mannesmann Ag Detecting the operation of an electromagnetic actuator
GB2392741A (en) * 2002-09-03 2004-03-10 Lear Corp Controlling the strength of a magnetic field
GB2392741B (en) * 2002-09-03 2004-11-24 Lear Corp System and method for adaptive variable magnetic field generator
US6911904B2 (en) 2002-09-03 2005-06-28 Lear Corporation System and method for adaptive variable magnetic field generator

Also Published As

Publication number Publication date Type
DE2019345C3 (en) 1982-12-09 grant
US3671814A (en) 1972-06-20 grant
JPS5532208B1 (en) 1980-08-23 grant
NL164684C (en) 1981-01-15 grant
NL164684B (en) 1980-08-15 application
NL7105392A (en) 1971-10-26 application
DE2019345B2 (en) 1972-11-30 application
DE2019345A1 (en) 1971-11-11 application
FR2086243A1 (en) 1971-12-31 application
FR2086243B1 (en) 1974-04-26 grant

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years