EP0351451A2 - Circuit de réglage d'un courant pulsatoire - Google Patents

Circuit de réglage d'un courant pulsatoire Download PDF

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Publication number
EP0351451A2
EP0351451A2 EP88118381A EP88118381A EP0351451A2 EP 0351451 A2 EP0351451 A2 EP 0351451A2 EP 88118381 A EP88118381 A EP 88118381A EP 88118381 A EP88118381 A EP 88118381A EP 0351451 A2 EP0351451 A2 EP 0351451A2
Authority
EP
European Patent Office
Prior art keywords
current
voltage
circuit arrangement
output
pulse width
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.)
Withdrawn
Application number
EP88118381A
Other languages
German (de)
English (en)
Other versions
EP0351451A3 (fr
Inventor
Ralf Hartmann
Jürgen Reus
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0351451A2 publication Critical patent/EP0351451A2/fr
Publication of EP0351451A3 publication Critical patent/EP0351451A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Definitions

  • the invention relates to a circuit arrangement for regulating a pulsating current through an inductor, in particular the coil of an electro-magnetic valve, the inductor being connected in series with a semiconductor switch and in parallel with a free-wheeling diode, and furthermore a setpoint voltage can be fed to a controller whose output is connected to a control input of the semiconductor switch via a pulse width modulator.
  • the object of the present invention is to provide a circuit arrangement for regulating a pulsating current through an inductor, in which the coil current is inferred from the temporal part of the current flow, namely the time in which the current flows through the semiconductor switch, during the entire period can.
  • the circuit arrangement according to the invention is characterized in that the current which can be measured when the semiconductor switch is conducting is time-weighted and integrated.
  • a further development of the invention consists in that an actual value voltage can be derived with the aid of a current / voltage converter which is connected in series with the inductance and the semiconductor switch, a further switch which can be controlled by the pulse width modulator and an integrator.
  • a coil 1 is connected in series with a transistor 2 and a current / voltage converter 3 between the positive pole 4 of an operating voltage source (not shown in detail) and ground potential.
  • the coil 1 is part of an electromagnetic valve, in particular a valve for fuel injection in an internal combustion engine.
  • the coil 1 is connected to a freewheeling diode 5 in parallel.
  • a voltage Usoll is supplied as a setpoint to a controller 7 via an input 6.
  • the output of the controller 7 is connected to the input of a pulse width modulator 8, the output of which is connected to the control electrode of the transistor 2.
  • the pulse width modulator 8 controls a switch 9, which can be formed, for example, by a field effect transistor.
  • the current / voltage converter 3 consists of a resistor, across which a voltage proportional to the current drops. This is fed via switch 9 to an integrator 10, the output of which is connected to the inverting input of controller 7.
  • integrator 10 Various known circuits are suitable as integrator 10, for example a so-called Miller integrator.
  • the integration time constant is significantly longer than the period of the signal emitted by the pulse width modulator.
  • the controller 7 is shown for the sake of simplicity as a differential amplifier. However, various types of controllers such as PI controllers can be used within the scope of the invention.
  • FIG. 2a shows the course of the output voltage of the pulse width modulator, the time shift of the trailing edge dependent on the output voltage of the controller being indicated by a double arrow.
  • the transistor 2 is conductive during the period t0 to t1. During the remaining part of the period T, the transistor 2 is blocked.
  • the current is shown in FIG. 2b) through the coil 1 increases during the time t0 to t1 and then drops again until the transistor 2 is switched on again.
  • a current i1 flows through the transistor 2 during the period t0 to t1.
  • the current i2 flows through the free-wheeling diode 5 during the period t1 until the end of the period T.
  • 2c) shows the time profile of the current i1 through the transistor, which can be detected with the aid of the current / voltage converter 3.
  • the pulse width modulator is formed by a differential amplifier 12, one input 13 of which is a sawtooth-shaped signal and the other input of which is the output voltage of the regulator 7.
  • the output of the differential amplifier 12 is connected via a resistor 14 to + UB and via a further resistor 15 to the control electrode of the transistor 2.
  • the voltage UB is stabilized and is, for example, + 5V.
  • OTA Operational Transductance Amplifier
  • the OTA 17 is controlled via a transistor 26, the emitter of which is connected to the output of the differential amplifier 12 and the collector of which is connected to the control input 28 of the OTA 17 via a resistor 27.
  • the transistor 26 is in turn controlled in that the voltage at the connection point 29 between the coil 1 and the transistor 2 is supplied to the base of the transistor 26 via a voltage divider 30, 31.
  • a diode 32 is provided, which protects the base of transistor 26 from overvoltages.
  • the illustrated control of the OTA 17 has the effect that the OTA 17 only delivers an output current when the transistor 2 and thus also the transistor 26 are conductive.
  • the integrator is active during this time. During the remaining part of the period of the output signals of the pulse width modulator, the output of the OTA 17 is blocked, so that the output voltage of the integrator does not change.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Magnetically Actuated Valves (AREA)
EP19880118381 1988-07-20 1988-11-04 Circuit de réglage d'un courant pulsatoire Withdrawn EP0351451A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883824526 DE3824526A1 (de) 1988-07-20 1988-07-20 Schaltungsanordnung zur regelung eines pulsierenden stroms
DE3824526 1988-07-20

Publications (2)

Publication Number Publication Date
EP0351451A2 true EP0351451A2 (fr) 1990-01-24
EP0351451A3 EP0351451A3 (fr) 1990-11-22

Family

ID=6359070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880118381 Withdrawn EP0351451A3 (fr) 1988-07-20 1988-11-04 Circuit de réglage d'un courant pulsatoire

Country Status (3)

Country Link
US (1) US4978865A (fr)
EP (1) EP0351451A3 (fr)
DE (1) DE3824526A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117535A1 (de) * 1991-05-29 1992-12-03 Miele & Cie Schaltungsanordnung zum ansteuern eines relais
DE9409760U1 (de) * 1993-06-25 1994-09-01 Siemens AG, 80333 München Schaltungsanordnung zur Ansteuerung eines Schützes
DE9409759U1 (de) * 1993-06-25 1994-10-27 Siemens AG, 80333 München Schaltungsanordnung zur Realisierung eines konstanten Schütz-Haltestroms
WO1998013847A1 (fr) * 1996-09-24 1998-04-02 Siemens Aktiengesellschaft Circuit d'alimentation en energie d'un mecanisme a commande electromagnetique d'un appareil de commutation

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805031C2 (de) * 1988-02-18 1997-04-17 Bosch Gmbh Robert Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
JPH03164912A (ja) * 1989-11-24 1991-07-16 Mitsubishi Electric Corp デューティソレノイドバルブの駆動装置
DE4011217A1 (de) * 1990-04-06 1991-10-10 Lucas Ind Plc Verfahren zum ansteuern eines magnetventils einer schlupf-regelanlage
DE4026427C1 (fr) * 1990-08-21 1992-02-13 Siemens Ag, 8000 Muenchen, De
JP3030076B2 (ja) * 1990-11-01 2000-04-10 三菱電機株式会社 電流制御回路
US5087866A (en) * 1991-05-22 1992-02-11 Lucas Industries Temperature compensating circuit for LVDT and control system
US5255152A (en) * 1991-08-21 1993-10-19 Eaton Corporation Controller for fixed-time pull-in of a relay
US5245261A (en) * 1991-10-24 1993-09-14 International Business Machines Corporation Temperature compensated overcurrent and undercurrent detector
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
DE4201652C2 (de) * 1992-01-22 1997-11-06 Rexroth Mannesmann Gmbh Proportionalventil mit Ansteuerschaltung und Netzspannungsbetrieb
US5450270A (en) * 1992-12-09 1995-09-12 Jatco Corporation Solenoid valve control system
TW241370B (fr) * 1992-12-15 1995-02-21 Fuji Electrical Machinery Co Ltd
DE4341797A1 (de) * 1993-12-08 1995-06-14 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
JP3134724B2 (ja) * 1995-02-15 2001-02-13 トヨタ自動車株式会社 内燃機関の弁駆動装置
FR2734394A1 (fr) * 1995-05-17 1996-11-22 Caterpillar Inc Commande d'amplitude de tremblement
US5621603A (en) * 1995-07-26 1997-04-15 United Technologies Corporation Pulse width modulated solenoid driver controller
DE19623442A1 (de) * 1996-06-12 1998-01-02 Telefunken Microelectron Vorrichtung zum Ermitteln des in einer Induktivität fließenden Stroms
WO1998024008A1 (fr) * 1996-11-22 1998-06-04 Temic Telefunken Microelectronic Gmbh Circuit de reglage comprenant un regulateur numerique pour reguler le courant d'entree d'un acteur electrique a l'aide de la modulation d'impulsions en largeur
US5815362A (en) * 1996-12-04 1998-09-29 Westinghouse Air Brake Company Pulse width modulated drive for an infinitely variable solenoid operated brake cylinder pressure control valve
DE19706247B4 (de) * 1997-02-18 2005-05-19 Burgert, Markus Schaltungsanordnung zur Steuerung von Elektromagneten und Regelung des Spulenstroms
US6208497B1 (en) 1997-06-26 2001-03-27 Venture Scientifics, Llc System and method for servo control of nonlinear electromagnetic actuators
US6942469B2 (en) 1997-06-26 2005-09-13 Crystal Investments, Inc. Solenoid cassette pump with servo controlled volume detection
DE29715925U1 (de) 1997-09-05 1997-10-23 Festo AG & Co, 73734 Esslingen Schaltungsvorrichtung
US5818678A (en) * 1997-10-09 1998-10-06 Delco Electronics Corporation Tri-state control apparatus for a solenoid having on off and PWM control modes
DE19756461A1 (de) * 1997-12-18 1999-07-01 Bosch Gmbh Robert Verfahren zum Beeinflussen der elektrischen Leistung einer Last mit einem impulsbreitenmodulierten Signal
US6982323B1 (en) * 1997-12-23 2006-01-03 Alexion Pharmaceuticals, Inc. Chimeric proteins for diagnosis and treatment of diabetes
JP4118414B2 (ja) * 1998-10-29 2008-07-16 サンデン株式会社 可変容量圧縮機の容量制御弁の制御回路
DE19915593A1 (de) * 1999-04-07 2000-11-16 Daimler Chrysler Ag Schaltungsanordnung zur Bestimmung des Stroms durch ein induktives Bauteil
US6493204B1 (en) 1999-07-09 2002-12-10 Kelsey-Hayes Company Modulated voltage for a solenoid valve
US7315440B1 (en) 2003-12-09 2008-01-01 Yazaki North America, Inc. Circuit and method for driving a coil-armature device
DE10358858A1 (de) * 2003-12-16 2005-07-14 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer induktiven Last mit unterschiedlichen elektrischen Spannungen
FR2899718B1 (fr) * 2006-04-11 2008-05-23 Crouzet Automatismes Soc Par A Dispositif de detection d'arc electrique, dispositif de coupure comportant un tel dispositif et procede de detection d'arc electrique
DE102006058879A1 (de) * 2006-12-13 2008-06-26 Siemens Ag Messvorrichtung zur Messung eines elektrischen Stromes
DE102008055696A1 (de) 2008-01-25 2009-07-30 Continental Teves Ag & Co. Ohg Elektronische Schaltungseinrichtung zur Erfassung eines Detektionselementstroms und/oder einer Temperatur in diesem Detektionselement
GB2470211B (en) * 2009-05-14 2013-07-31 Gm Global Tech Operations Inc Hysteresis-type electronic controlling device for fuel injectors and associated method
US8786138B2 (en) * 2010-05-21 2014-07-22 General Electric Company Systems, methods, and apparatus for controlling actuator drive current using bi-directional hysteresis control
FR2971102B1 (fr) * 2011-02-01 2019-09-06 Safran Landing Systems Procede de limitation d'un courant fourni par une source d'alimentation en courant continu.
CN102426984B (zh) * 2011-11-29 2013-12-04 福州大学 抗晃电智能交流接触器高频控制系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151261A (en) * 1980-04-24 1981-11-24 Japan Electronic Control Syst Co Ltd Operating device for fuel injection valve
JPS57121703A (en) * 1981-01-22 1982-07-29 Nippon Denso Co Ltd Driving circuit of electromagnetic operating device
DE3135805A1 (de) * 1981-09-10 1983-03-24 Robert Bosch Gmbh, 7000 Stuttgart Elektrische schaltungsanordnung in verbindung mit einem kfz-steuergeraet
JPS5851233A (ja) * 1981-09-21 1983-03-25 Hitachi Ltd 燃料噴射弁駆動回路
US4556926A (en) * 1982-09-27 1985-12-03 Ricoh Company, Ltd. Electromagnet driving circuit
DE3515039C2 (de) * 1985-04-25 1987-04-02 Klöckner, Wolfgang, Dr., 8033 Krailling Schaltung für ein elektromagnetisch betätigtes Gaswechselventil einer Brennkraftmaschine
ES8703213A1 (es) * 1985-04-25 1987-02-16 Kloeckner Wolfgang Dr Procedimiento para el accionamiento de una maquina motriz de combustion interna
US4661766A (en) * 1985-12-23 1987-04-28 Caterpillar Inc. Dual current sensing driver circuit
GB8616965D0 (en) * 1986-07-11 1986-08-20 Lucas Ind Plc Drive circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117535A1 (de) * 1991-05-29 1992-12-03 Miele & Cie Schaltungsanordnung zum ansteuern eines relais
DE9409760U1 (de) * 1993-06-25 1994-09-01 Siemens AG, 80333 München Schaltungsanordnung zur Ansteuerung eines Schützes
DE9409759U1 (de) * 1993-06-25 1994-10-27 Siemens AG, 80333 München Schaltungsanordnung zur Realisierung eines konstanten Schütz-Haltestroms
WO1998013847A1 (fr) * 1996-09-24 1998-04-02 Siemens Aktiengesellschaft Circuit d'alimentation en energie d'un mecanisme a commande electromagnetique d'un appareil de commutation

Also Published As

Publication number Publication date
EP0351451A3 (fr) 1990-11-22
DE3824526A1 (de) 1990-01-25
US4978865A (en) 1990-12-18

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