WO1996003758A1 - Procede et dispositif permettant d'exciter un consommateur electromagnetique - Google Patents

Procede et dispositif permettant d'exciter un consommateur electromagnetique Download PDF

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Publication number
WO1996003758A1
WO1996003758A1 PCT/DE1995/000890 DE9500890W WO9603758A1 WO 1996003758 A1 WO1996003758 A1 WO 1996003758A1 DE 9500890 W DE9500890 W DE 9500890W WO 9603758 A1 WO9603758 A1 WO 9603758A1
Authority
WO
WIPO (PCT)
Prior art keywords
current
consumer
control means
solenoid valve
signal
Prior art date
Application number
PCT/DE1995/000890
Other languages
German (de)
English (en)
Inventor
Viktor Kahr
Peter Schmitz
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP95924843A priority Critical patent/EP0720770B1/fr
Priority to JP8505346A priority patent/JPH09503353A/ja
Priority to DE59510199T priority patent/DE59510199D1/de
Publication of WO1996003758A1 publication Critical patent/WO1996003758A1/fr

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • 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
    • H01F7/1844—Monitoring or fail-safe circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02D2041/2017—Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
    • 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
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value

Definitions

  • the invention relates to a method and a device for controlling an electromagnetic consumer according to the preambles of the independent claims.
  • a method and a device for controlling an electromagnetic consumer is known for example from DE-OS 34 26 799 (US-A 4,653,447).
  • the switching times and, starting therefrom, the switch-on and switch-off times of a solenoid valve are recorded.
  • the exact switching time of the solenoid valve is determined on the basis of the time course of the current through the solenoid valve.
  • Such solenoid valves are preferably used to control the injection of fuels in gasoline and / or diesel engines.
  • the switching time is of particular interest, at which the armature of the solenoid valve reaches one of its two end positions.
  • the procedure is such that the current profile and / or the voltage profile is evaluated in a time window within which the switching point usually occurs and the switching time is determined on the basis of its time profile.
  • the voltage applied to the solenoid valve or the current flowing through the solenoid valve is regulated to a certain value.
  • a constant solenoid valve voltage or current is therefore provided in order to generate a steady course of the solenoid valve current or voltage.
  • the object of the invention is to simplify the detection of the switching time in a method and a device for controlling an electromagnetic consumer of the type mentioned at the beginning.
  • FIG. 1 shows a block diagram of the device according to the invention
  • FIG. 2 shows various signals plotted over time.
  • the exemplary embodiment described is a device for controlling an electromagnetic consumer.
  • the described device and the described method can be used in connection with any electromagnetic consumer. It is not limited to the specific application.
  • a solenoid valve for controlling the metering of fuel into the internal combustion engine is used in a particularly advantageous manner.
  • BIP beginning of injection period
  • FIG. 1 essential elements of the device for controlling a solenoid valve-controlled fuel metering device are shown schematically.
  • An electromagnetic consumer 100, a current control means 110, and a current Measuring means 120 are connected in series between a supply voltage Ubat and ground.
  • An ohmic resistor is preferably used as the current measuring means 120.
  • a transistor in particular a field effect transistor, is preferably used as the current control means.
  • Consumer 100 is an inductive resistor, in particular a coil of a solenoid valve.
  • the two connections of the current measurement with els 120 are connected to a current detection 130.
  • the current detection 130 acts on a node 135 with the actual value I js t for the current.
  • the setpoint Igoll is provided by a controller 140.
  • a current regulator 150 in particular an analog regulator, is applied to the output signal of node 135.
  • the output signal UR, IR of the current regulator 150 reaches the control connection of the current control means 110 via a manipulated variable detection 160.
  • the control connection is the gate connection of the field effect transistor.
  • An ohmic resistor is preferably used as the manipulated variable detection 160.
  • the BIP detection 170 applies a signal to the controller 140.
  • BIP detection 170 is preferably designed as a comparator which evaluates the voltage drop across resistor 160. As soon as the differentiated output voltage U ⁇ becomes less than zero, the BIP detection 170 generates an output signal. Based on the differentiated control output voltage or In the direction of flow of the controller output current, the BIP detection detects the switching time.
  • a control signal U i n E is plotted against time T. This signal indicates whether the control unit 140 forwards a setpoint Igoll to the node 135.
  • the current I ⁇ v flowing through the solenoid valve is plotted in the second line.
  • the regulator voltage UR present at the output of the regulator 150 is plotted in the fourth line, the differentiated regulator output voltage or the regulator output current IR.
  • the output signal of the GDP detection 170 Ug j p is plotted.
  • the control device 140 does not emit a signal until the time T1.
  • the current control means 110 interrupts the flow of current through the consumer 100 and the solenoid valve is not activated.
  • control unit 140 specifies a setpoint. This means that the output signal U E i n assumes an increased value. Since the current flowing through the solenoid valve: 1 . has not yet reached its target value, this means that a value other than 0 is present at the output of node 135.
  • the controller 150 then outputs a corresponding manipulated variable UR which increases from 0 to a value. This means that the gate of the current control means is charged by means of a current. The current 1 ⁇ therefore rises very quickly.
  • the current control means 110 releases the current flow I ⁇ y and the current, I j fly increases over time.
  • the manipulated variable U R reaches its maximum value and the current I R drops.
  • the current I ⁇ r ⁇ j flowing through the solenoid valve reaches its target value Isoll.
  • the output variable U R of the controller 150 changes. It takes on a smaller value than before. This in turn causes the current I R to assume negative values for a short time. It changes its sign at time T2. This in turn causes the GDP detection 170 to output a signal at time T2 which indicates a change in the current direction.
  • the armature of the solenoid valve reaches its new end position at time T3. This in turn causes the inductance of the coil to change.
  • the change in the inductance of the coil causes a discontinuity in the output signal U R of the regulator 150, which results in a change of sign or a change in the current I R.
  • This change in the sign of the current I R in turn causes the BIP detection 170 to output a pulse signal to the controller 140 at the time T3.
  • the control device 140 recognizes the second pulse of the signal U ß ip as the switching time of the solenoid valve and evaluates this signal accordingly.
  • One embodiment of the invention provides that the GDP detection suppresses the first pulse at time T2.
  • the switching time (BIP) in a solenoid valve is obtained by evaluating the manipulated variable of a current regulator.
  • An analog regulator preferably serves as the current regulator.
  • a voltage regulation is provided.
  • Current flowing through the consumer regulates the voltage drop across the consumer to a setpoint.
  • the manipulated variable is evaluated accordingly.

Abstract

L'invention concerne un procédé et un dispositif permettant d'exciter un consommateur (100) électromagnétique, notamment une électrovanne pour influer sur le dosage en carburant d'un moteur Diesel. Le consommateur (100) est monté en série avec un élément de commande du courant (110) auquel on peut appliquer un signal d'excitation pouvant être prédéterminé par un élément de régulation (150). Un signal de sortie de l'élément de régulation (150) peut être évalué pour déterminer l'instant de commutation du consommateur électromagnétique.
PCT/DE1995/000890 1994-07-22 1995-07-07 Procede et dispositif permettant d'exciter un consommateur electromagnetique WO1996003758A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95924843A EP0720770B1 (fr) 1994-07-22 1995-07-07 Procede et dispositif permettant d'exciter un consommateur electromagnetique
JP8505346A JPH09503353A (ja) 1994-07-22 1995-07-07 電磁負荷の制御方法および装置
DE59510199T DE59510199D1 (de) 1994-07-22 1995-07-07 Verfahren und vorrichtung zur ansteuerung eines elektromagnetischen verbrauchers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4425987.5 1994-07-22
DE4425987A DE4425987A1 (de) 1994-07-22 1994-07-22 Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers

Publications (1)

Publication Number Publication Date
WO1996003758A1 true WO1996003758A1 (fr) 1996-02-08

Family

ID=6523877

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/000890 WO1996003758A1 (fr) 1994-07-22 1995-07-07 Procede et dispositif permettant d'exciter un consommateur electromagnetique

Country Status (5)

Country Link
EP (1) EP0720770B1 (fr)
JP (1) JPH09503353A (fr)
KR (1) KR100378452B1 (fr)
DE (2) DE4425987A1 (fr)
WO (1) WO1996003758A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2602308A2 (fr) 2002-11-14 2013-06-12 Pronova BioPharma Norge AS Estérification catalysée par lipase d'huile marine
WO2016146310A1 (fr) * 2015-03-16 2016-09-22 Robert Bosch Gmbh Procédé de commande du dosage de carburant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19728840A1 (de) 1997-07-05 1999-01-07 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erfassung eines Schaltzeitpunktes eines Magnetventils
DE10129153A1 (de) * 2001-06-16 2003-01-09 Festo Ag & Co Elektromagnetisches Ventil mit Haltestromabsenkung
DE10212092A1 (de) * 2002-03-19 2003-10-09 Dbt Autom Gmbh Verfahren und Vorrichtung zum Betrieb eines Elektromagneten an einem eigensicheren Gleichstromkreis
DE10252476B4 (de) * 2002-11-12 2012-07-26 Volkswagen Ag Verfahren zum Betreiben einer Brennkraftmaschine und Brennkraftmaschine
DE102008055008B4 (de) * 2008-12-19 2018-08-09 Robert Bosch Gmbh Verfahren zum Betreiben einer Brennkraftmaschine
DE102011005672B4 (de) * 2011-03-17 2019-07-11 Continental Automotive Gmbh Verfahren, Vorrichtung und Computerprogramm zur elektrischen Ansteuerung eines Aktuators zur Bestimmung des Zeitpunkts eines Ankeranschlags

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612597A (en) * 1984-12-19 1986-09-16 General Motors Corporation Circuit for controlling and indicating fuel injector operation
DE3800910A1 (de) * 1987-01-16 1988-08-25 Honda Motor Co Ltd Stromdetektor-schaltungsanordnung fuer eine hubmagnet-treiberanordnung
DE4308811A1 (de) * 1992-07-21 1994-01-27 Bosch Gmbh Robert Verfahren und Einrichtung zur Steuerung einer magnetventilgesteuerten Kraftstoffzumeßeinrichtung
DE4237706A1 (de) * 1992-11-07 1994-05-11 Mtu Friedrichshafen Gmbh Einrichtung zur Aufschlagzeitpunkt-Erkennung für den Anker eines Magnetventils

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3426799A1 (de) * 1984-07-20 1986-01-23 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zur regelung der einer brennkraftmaschine einzuspritzenden kraftstoffmenge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612597A (en) * 1984-12-19 1986-09-16 General Motors Corporation Circuit for controlling and indicating fuel injector operation
DE3800910A1 (de) * 1987-01-16 1988-08-25 Honda Motor Co Ltd Stromdetektor-schaltungsanordnung fuer eine hubmagnet-treiberanordnung
DE4308811A1 (de) * 1992-07-21 1994-01-27 Bosch Gmbh Robert Verfahren und Einrichtung zur Steuerung einer magnetventilgesteuerten Kraftstoffzumeßeinrichtung
DE4237706A1 (de) * 1992-11-07 1994-05-11 Mtu Friedrichshafen Gmbh Einrichtung zur Aufschlagzeitpunkt-Erkennung für den Anker eines Magnetventils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2602308A2 (fr) 2002-11-14 2013-06-12 Pronova BioPharma Norge AS Estérification catalysée par lipase d'huile marine
WO2016146310A1 (fr) * 2015-03-16 2016-09-22 Robert Bosch Gmbh Procédé de commande du dosage de carburant
US10302037B2 (en) 2015-03-16 2019-05-28 Robert Bosch Gmbh Method for controlling metering of fuel

Also Published As

Publication number Publication date
DE59510199D1 (de) 2002-06-13
EP0720770B1 (fr) 2002-05-08
KR960704148A (ko) 1996-08-31
KR100378452B1 (ko) 2003-07-22
JPH09503353A (ja) 1997-03-31
EP0720770A1 (fr) 1996-07-10
DE4425987A1 (de) 1996-01-25

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