EP0977230A2 - Circuit pour contrôler un actionneur électromagnetique et procédé pour le fonctionnement d'un tel circuit - Google Patents

Circuit pour contrôler un actionneur électromagnetique et procédé pour le fonctionnement d'un tel circuit Download PDF

Info

Publication number
EP0977230A2
EP0977230A2 EP99111235A EP99111235A EP0977230A2 EP 0977230 A2 EP0977230 A2 EP 0977230A2 EP 99111235 A EP99111235 A EP 99111235A EP 99111235 A EP99111235 A EP 99111235A EP 0977230 A2 EP0977230 A2 EP 0977230A2
Authority
EP
European Patent Office
Prior art keywords
activation
coil
energy
circuit arrangement
storage element
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Withdrawn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
EP99111235A
Other languages
German (de)
English (en)
Other versions
EP0977230A3 (fr
Inventor
Joseph A. Engel
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP0977230A2 publication Critical patent/EP0977230A2/fr
Publication of EP0977230A3 publication Critical patent/EP0977230A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils

Definitions

  • the present invention relates to a circuit arrangement for control an electromagnetic actuator with an activation coil with coil core, an activation switch for connection and disconnecting the activation coil with or from an energy source and a movably mounted, ferromagnetic actuator, which when closed Activation switch through that of the activation coil generated magnetic field from a rest position to an activation position is movable. Furthermore, the invention relates to a method for operating directed such a circuit arrangement.
  • Circuit arrangements of this type are used, for example, in motor vehicle engines used.
  • the actuator designed as an electromagnet controls the injection process via the movement of the control element the fuel injection pump.
  • the low tension of usual In the automotive sector 12 volts are very demanding compared to the dynamics of the injection process.
  • 12 volts are very demanding compared to the dynamics of the injection process.
  • a diesel engine in which the fuel is injected into the combustion chamber done under high pressure in addition to a quick Response speed requires large forces.
  • One way to charge the coil until it reaches the required To decrease current level could be the inductance and reduce the resistance of the coil. This would cause that after applying the operating voltage to the coil, the coil current increases significantly faster and the required current value in shorter Time is reached. However, in this case the coil current will ultimately assume significantly higher values than are required for operation, so that these artificially increased current values through separate control circuits must be limited again.
  • an energy storage element for Storage of magnetic auxiliary energy is provided that the energy storage element for transmission in the energy storage element stored auxiliary energy connected to the activation coil with this is and that a control unit is provided by which the time of Energy transfer is controllable.
  • the object of the method is achieved in that magnetic Auxiliary energy is stored in an energy storage element, the Stored magnetic auxiliary energy suddenly of the activation coil is supplied and at least from the time of energy supply Activation coil with the energy source via the activation switch is connected.
  • one is preferably designed as an auxiliary coil Energy storage element stored magnetic auxiliary energy, the suddenly transferred to the activation coil at the time of switching becomes.
  • This sudden transmission increases the coil current the activation coil accordingly quickly, so that the threshold the coil current which is required for the movement of the actuating element, is exceeded after a very short time.
  • the coil current through the energy source for example the motor vehicle battery, are supplied in sufficient amounts.
  • the energy storage element connected in series with the activation coil and over a charge switch connectable to the reference potential or by this separable. While the charging switch is closed, the energy storage element can powered by the power source and with the desired one Amount of energy to be charged.
  • the corresponding parameters such as time constant, inductance, etc. become experimental determined and dimensioned so that in the energy storage element stored energy is sufficient to transfer after transfer the activation coil the desired switching process, i.e. moving of the actuator.
  • the charging switch After reaching the desired auxiliary energy or a corresponding time the charging switch is opened, which means that in the Energy storage element stored energy suddenly on the in Series-connected activation coil is transmitted. It is only required the activation switch, which together with the activation coil and the energy source forms a circuit, before or at the latest is closed when the charging switch is opened, so that a current flow is possible through the activation coil.
  • a plurality of energy storage elements and / or a plurality can preferably be used Activation coils can be provided.
  • the auxiliary energy stored in one energy storage element to several, Activation coils connected in parallel are transmitted.
  • a capacitor to buffer the energy transfer generated high voltage provided.
  • the by the sudden Energy transmission high voltages are common converted to heat, which is undesirable in most cases is.
  • the capacitor provided according to the invention these voltage peaks are buffered and the corresponding energy is transmitted to the activation coil in a practically loss-free manner. It is also possible to buffer only a part of the voltage peaks, to use capacitors with lower capacities to be able to, so that the response of the circuit arrangement is only insignificantly deteriorated by the capacitors.
  • FIG. 1 shows a circuit arrangement 1 designed according to the invention on the input side via two relays 2, 3 with one as a DC voltage source 4 trained energy source connected.
  • Activation coils are on the output side of the circuit arrangement L2, L2 ', L3, L3' (hereinafter also referred to as injector coils) of a motor vehicle injection system connected. Via the injector coils L2, L2 ', L3, L3 'becomes, for example, the hydraulics of a diesel injection system during the injection process controlled by a control device, not shown.
  • the injector coils L2, L2 ', L3, L3' are each one side over as Activation switch T2, T2 ', T3, T3' with transistors connected.
  • the activation switches can also not from the shown control device can be turned on or off.
  • the coils L2 and L2 'or L3 and L3' are each parallel to each other switched and with their common connection points 5, 6 each via resistors 7, 8 at nodes 9, 10 within the circuit arrangement 1 connected.
  • the node 9 is on the one hand over a Capacitor C1 connected to ground, via a diode 11 with a between a charging coil L1 and a charging switch designed as a transistor T1 connected connection point 12 and via a further diode 13 and a resistor 14 connected in parallel thereto the relay 2 is connected to the DC voltage source 4.
  • the charging switch T1 While the end of the Charging coil L1 also via the relay 2 with the DC voltage source 4 is connected, the charging switch T1 is connected to ground.
  • the Charging switch T1 like the activation switches T2, T2 ', T3, T3' the control device, not shown, can be switched on and off.
  • the circuit part shown between node 10 and relay 3 fully corresponds to the one just described, between the Node 9 and the relay 2 lying circuit part.
  • FIG. 2a) shows the respective at the base of the transistors T1, T1 'applied switching voltage 15, Figure 2b) in the charging coils L1, L1 'flowing charging current 16, Figure 2c) on the activation switches T2, T2 ', T3, T3' applied switching voltage 17, Figure 2d) the injector current 18 flowing through the injector coils L2, L2 ', L3, L3' and FIG. 2e) shows the injector voltage applied to the injector coils L2, L2 ', L3, L3' 19th
  • the charging switches T1, T1 ' are acted upon by the control device at regular intervals or depending on the engine speed with the pulsed switching voltage 15.
  • T L which is defined by the width of the pulse of the charging voltage 15, these charging switches T1, T1 'are closed, so that the increasing charging current 16 shown in FIG. 2b) flows in the charging coils L1, L1'.
  • the activation switches T2, T2 ', T3, T3' are open during the charging time T L , since the switching voltage 17 is zero during this period. Because of the open activation switches T2, T2 ', T3, T3', the injector current 18 in the injector coils L2, L2 ', L3, L3 ' is zero during the charging time T L , as shown in FIG. 2d).
  • the start and the length of the charging time T L is chosen so that at the end of the charging time T L , ie at the time t 1 , sufficient energy is stored in the coils L1 and L1 'to enable a switching operation by the coils L2, L2' , L3, L3 'to trigger.
  • the switching voltage 17 is activated at the time t 1 , which corresponds, for example, to the desired injection time in a motor vehicle engine, so that the activation switches T2, T2 ', T3, T3' are closed, and the switching voltage 15 is set to zero almost simultaneously, so that the charging switches T1, T1 'open.
  • the charging coils L1, L1' are abruptly discharged, so that the energy stored in the charging coils L1, L1 'is transferred to the activation coils L2, L2', L3, L3 '. Since the activation coils L2, L2 ', L3, L3' are now connected to ground via the activation switches T2, T2 ', T3, T3', the injector current 18 increases very quickly in accordance with the steeply falling current curve 16 of the charging coils L1, L1 ' within a short time exceeds a threshold value I 0 of, for example, 3 amperes, which must be exceeded in order to move the actuating element, for example to control the injection pump of a diesel engine. In accordance with the rapidly increasing injector current 18, the injector voltage 19 also jumps to values from 100 to 150 volts.
  • a higher rise in injector voltage is caused by the capacitors C1, C1 'prevented, which are dimensioned as buffer elements so that all of the transmitted energy or at least a large part of this energy can be stored in the capacitors C1, C1 '.
  • the injector current of 5 amperes or more is supplied by the DC voltage source 4, so that up to a time t 3 the injector current 18 remains essentially constant or only drops slowly.
  • the switching voltage 17 is set to zero, so that the activation switches T2, T2 ', T3, T3' open and the injector current 18 decreases exponentially.
  • This decrease in injector current 18 is associated with a corresponding negative increase in injector voltage 19 to values down to -180 volts or more.
  • this stored auxiliary energy at the desired switching time on the actual activation coils is thus achieved that the essential for the switching process threshold value of the injector current is exceeded more quickly.
  • the signal profiles shown in FIG. 3 differ from the signal profiles according to FIG. 2 only in that the switching voltage 17 is not activated only at the time T1, but rather already when the switching voltage 15 is switched on. It is thereby achieved that during the charging time T L , in which the charging current 16 in the charging coils L1, L1 'rises to 12 amperes, the injector current 18 in the injector coils L2, L2', L3, L3 'also corresponds to the section 18' shown increases.
  • the injector current 18 ' rises very much more slowly than the charging current 16 during the charging time T L , so that at the end of the charging time T L at the time t 1 the injector current 18 reached a value of less than 2 amps. This value is not sufficient to trigger the desired switching process, for example the injection process.
  • the premature switching on of the switching voltage 17 generates an offset of the injector current 18, so that after the switching voltage 15 is switched off, the injector current 18 generated by the energy transmission is added to this offset.
  • the injector current 18 has a value increased by this offset compared to the current profile according to FIG. 2. Since in this way the limit current I 0 is exceeded somewhat earlier than in the current profile according to FIG. 2, the response speed of a circuit arrangement designed according to the invention can be further improved in this way.
  • the switching voltage 17 is active for so long that the falling edge of the charging current 16 occurs before the falling edge of the switching voltage 17 and, in addition, the activation time T A is long enough to initiate and complete the triggered process , for example fuel injection.
EP99111235A 1998-07-29 1999-06-09 Circuit pour contrôler un actionneur électromagnetique et procédé pour le fonctionnement d'un tel circuit Withdrawn EP0977230A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998134204 DE19834204A1 (de) 1998-07-29 1998-07-29 Schaltungsanordnung zur Ansteuerung eines elektromagnetischen Betätigungsorgans und Verfahren zum Betreiben einer derartigen Schaltungsanordnung
DE19834204 1998-07-29

Publications (2)

Publication Number Publication Date
EP0977230A2 true EP0977230A2 (fr) 2000-02-02
EP0977230A3 EP0977230A3 (fr) 2001-08-16

Family

ID=7875744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111235A Withdrawn EP0977230A3 (fr) 1998-07-29 1999-06-09 Circuit pour contrôler un actionneur électromagnetique et procédé pour le fonctionnement d'un tel circuit

Country Status (3)

Country Link
EP (1) EP0977230A3 (fr)
JP (1) JP3094020B2 (fr)
DE (1) DE19834204A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010050724B4 (de) * 2010-05-14 2016-09-01 Mitsubishi Electric Corp. Fahrzeugmotor-Steuersystem

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1484628A1 (fr) 2003-06-07 2004-12-08 Zeiss Optronik GmbH Système et méthode pour générer des images en trois dimensions

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2020503A (en) * 1978-05-01 1979-11-14 Bendix Corp Drive circuit for inductive loads
US4688139A (en) * 1984-12-12 1987-08-18 Technological Research Association Of Highly Reliable Marine Propulsion Plant Electromagnet drive device
JPH0626589A (ja) * 1992-05-11 1994-02-01 Mitsubishi Heavy Ind Ltd 電磁弁駆動装置
JPH06292398A (ja) * 1993-02-05 1994-10-18 Komatsu Ltd 誘導負荷駆動装置
JPH074291A (ja) * 1993-06-18 1995-01-10 Toyota Motor Corp 燃料噴射弁駆動装置
JPH09317931A (ja) * 1996-03-22 1997-12-12 Denso Corp 電磁弁駆動装置
JPH1022124A (ja) * 1996-07-02 1998-01-23 Zexel Corp 電磁負荷駆動装置
JPH10288336A (ja) * 1997-04-16 1998-10-27 Matsushita Electric Ind Co Ltd 遮断弁駆動回路
JPH11141382A (ja) * 1997-11-04 1999-05-25 Honda Motor Co Ltd 電磁弁駆動回路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124044B (en) * 1982-07-10 1986-03-05 Lucas Ind Plc Power supply circuit
IT1182673B (it) * 1985-11-12 1987-10-05 Iveco Fiat Dispositivo atto a trasferire in modo rapido una corrente in un carico di tipo induttivo
DE3623908A1 (de) * 1986-07-15 1988-01-21 Spinner Gmbh Elektrotech Steuerschaltung fuer die magnetspule eines elektromagneten
DE3904605A1 (de) * 1989-02-16 1990-08-23 Bosch Gmbh Robert Schaltungsanordnung und verfahren fuer das beschleunigte schalten von elektromagnetischen verbrauchern
DE19632872C2 (de) * 1996-08-14 1998-08-13 Siemens Ag Vorrichtung und Verfahren zum Ansteuern eines kapazitiven Stellgliedes

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2020503A (en) * 1978-05-01 1979-11-14 Bendix Corp Drive circuit for inductive loads
US4688139A (en) * 1984-12-12 1987-08-18 Technological Research Association Of Highly Reliable Marine Propulsion Plant Electromagnet drive device
JPH0626589A (ja) * 1992-05-11 1994-02-01 Mitsubishi Heavy Ind Ltd 電磁弁駆動装置
JPH06292398A (ja) * 1993-02-05 1994-10-18 Komatsu Ltd 誘導負荷駆動装置
JPH074291A (ja) * 1993-06-18 1995-01-10 Toyota Motor Corp 燃料噴射弁駆動装置
JPH09317931A (ja) * 1996-03-22 1997-12-12 Denso Corp 電磁弁駆動装置
JPH1022124A (ja) * 1996-07-02 1998-01-23 Zexel Corp 電磁負荷駆動装置
JPH10288336A (ja) * 1997-04-16 1998-10-27 Matsushita Electric Ind Co Ltd 遮断弁駆動回路
JPH11141382A (ja) * 1997-11-04 1999-05-25 Honda Motor Co Ltd 電磁弁駆動回路

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 239 (M-1601), 9. Mai 1994 (1994-05-09) & JP 06 026589 A (MITSUBISHI HEAVY IND LTD), 1. Februar 1994 (1994-02-01) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01, 28. Februar 1995 (1995-02-28) & JP 06 292398 A (KOMATSU LTD), 18. Oktober 1994 (1994-10-18) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04, 31. Mai 1995 (1995-05-31) & JP 07 004291 A (TOYOTA MOTOR CORP;OTHERS: 01), 10. Januar 1995 (1995-01-10) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04, 31. März 1998 (1998-03-31) & JP 09 317931 A (DENSO CORP), 12. Dezember 1997 (1997-12-12) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05, 30. April 1998 (1998-04-30) & JP 10 022124 A (ZEXEL CORP), 23. Januar 1998 (1998-01-23) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01, 29. Januar 1999 (1999-01-29) & JP 10 288336 A (MATSUSHITA ELECTRIC IND CO LTD), 27. Oktober 1998 (1998-10-27) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 10, 31. August 1999 (1999-08-31) & JP 11 141382 A (HONDA MOTOR CO LTD), 25. Mai 1999 (1999-05-25) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010050724B4 (de) * 2010-05-14 2016-09-01 Mitsubishi Electric Corp. Fahrzeugmotor-Steuersystem

Also Published As

Publication number Publication date
EP0977230A3 (fr) 2001-08-16
DE19834204A1 (de) 2000-02-03
JP3094020B2 (ja) 2000-10-03
JP2000100621A (ja) 2000-04-07

Similar Documents

Publication Publication Date Title
EP0704097B1 (fr) Procede et dispositif de commande de consommateurs electromagnetiques
DE60011038T2 (de) Zeit und Fall-kontrolliertes Aktivierungssystem für die Aufladung und die Entladung von piezoelektrischen Elementen
EP1792069B1 (fr) Ensemble circuit et procede pour charger et decharger au moins une charge capacitive
EP2140506B1 (fr) Procédé et dispositif de chargement d'un élément capacitif
EP1192345B1 (fr) Procede et dispositif permettant de charger un actionneur capacitif
DE19921456A1 (de) Verfahren und Vorrichtung zur Ansteuerung eines piezoelektrischen Aktors
WO2005103469A9 (fr) Procede permettant d'entrainer une vanne magnetique pour une commande de quantite
EP0074536A2 (fr) Dispositif de commutation électrique pour appareil de commande d'un véhicule à moteur
DE10114421B4 (de) Verfahren zum Steuern eines kapazitiven Stellglieds und Schaltungsanordnung zur Durchführung des Verfahrens
EP0812461B1 (fr) Dispositif servant a la commande d'au moins un consommateur electromagnetique
DE102005054680B4 (de) Treibervorrichtung für ein piezoelektrisches Betätigungsglied
DE602004004664T2 (de) Vorrichtung zum Steuern der Elektroeinspritzventile und Elektroventile einer Brennkraftmaschine und eine Methode dafür
DE19734895C2 (de) Vorrichtung und Verfahren zum Ansteuern wenigstens eines kapazitiven Stellgliedes
DE19723935C1 (de) Vorrichtung und Verfahren zum Ansteuern wenigstens eines kapazitiven Stellgliedes
DE60011993T2 (de) Apparat und Methode für das Ermitteln einer Verringerung der Kapazität während des Antriebes von piezoelektrischen Elementen
DE10315282B4 (de) Schaltungsanordnung und Verfahren zur Ansteuerung eines bistabilen Magnetventils
DE102007001414B3 (de) Schaltungsanordnung sowie Verfahren zum Betrieb einer induktiven Last
EP1085190B1 (fr) Procédé et dispositif pour charger au moins un actionneur capacitif
DE102004026250B4 (de) Ansteuerschaltung für Piezoaktoren
DE60023796T2 (de) Anordnung und Steuerschaltung eines piezoelektrisches Antriebs
DE10151421A1 (de) Piezobetätigungsgliedantriebsschaltung und Kraftstoffeinspritzgerät
DE1751403A1 (de) Kraftstoff-Einspritzvorrichtung
DE10357872A1 (de) Verfahren und Vorrichtung zur Bestimmung der Ansteuerspannung für einen piezoelektrischen Aktor eines Einspritzventils
DE10336606B4 (de) Stellverfahren und Stellvorrichtung für einen Aktor
EP0977230A2 (fr) Circuit pour contrôler un actionneur électromagnetique et procédé pour le fonctionnement d'un tel circuit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020219