EP1157205B1 - Systeme et procede de regulation d'une soupape de commande de systeme d'injection pour moteur diesel - Google Patents

Systeme et procede de regulation d'une soupape de commande de systeme d'injection pour moteur diesel Download PDF

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Publication number
EP1157205B1
EP1157205B1 EP00916760A EP00916760A EP1157205B1 EP 1157205 B1 EP1157205 B1 EP 1157205B1 EP 00916760 A EP00916760 A EP 00916760A EP 00916760 A EP00916760 A EP 00916760A EP 1157205 B1 EP1157205 B1 EP 1157205B1
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EP
European Patent Office
Prior art keywords
valve
control valve
control
current
sensor
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 - Lifetime
Application number
EP00916760A
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German (de)
English (en)
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EP1157205A1 (fr
Inventor
Reda Rizk
Raimondo Giavi
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
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Publication of EP1157205A1 publication Critical patent/EP1157205A1/fr
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Publication of EP1157205B1 publication Critical patent/EP1157205B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus

Definitions

  • the invention relates to an arrangement and a method for controlling a control valve for a diesel injection system according to the preamble of claim 1 or of claim 3.
  • Such an arrangement and such Methods are known from US Pat. No. 5,640,987.
  • the diesel engine with direct injection is the internal combustion engine with the highest thermodynamic Efficiency.
  • fuel injection for different engines different technologies in Commitment. Systems are particularly popular in the commercial vehicle sector Pressure translation enforced to generate higher pressures.
  • An example of a fuel injector with pressure ratio is described in U.S. Patent No. 5,460,329 (Sturman).
  • the fuel passes through a valve designed as a slide valve electromagnetic control valve to a pressure booster in the injector. Via electromagnetic control of the control valve is at fixed times or crank angles the fuel from the pressure booster under high Pressure put.
  • the high pressure fuel causes then in the conventional way that the valve needle of the Injector lifts off their seat and clears the way for the fuel releases to the injector of the injector and the Fuel injected into the combustion chamber of the diesel engine becomes.
  • control valve points in the area of the two ends of the valve spool each have an electromagnet to back and forth can be switched down without elastic restoring elements required are. To the control valve in one hold defined position, however, must always be one of the both magnets remain energized, even after the desired position has already been reached.
  • the object of the present invention is to begin with mentioned arrangement and the method mentioned to design so that the large scatter of the injectors in Injection behavior is reduced and the engine runs better or becomes more even.
  • the above object is achieved according to the invention solved that while one of the two solenoids of the Control valve for generating a magnetic force with Current is applied to the other solenoid of each Control valve as a sensor for movement of the valve spool is switched. Because the valve spool consists of one magnetic material, allow the magnetic and the hysteresis properties of this material that a movement of the valve spool during the action and even after switching off the control current for one Magnetic coil induces a current or a voltage in the sensor. The results obtained during some operating cycles Information about the characteristic response behavior of the control valve in a control can be within a intelligent control are processed so that the Injection behavior of the respective injector has been improved will that deviations from the individual setpoints the injection parameters can be reduced.
  • the two electromagnets can be connected in parallel the characteristic behavior of the valve from a few Cycles of the switching cycle with only one activated magnet determine with sufficient accuracy within a short period of time to Actual behavior by taking the appropriate measures To approximate behavior.
  • the arrangement according to the invention or the inventive Process has the advantage that no additional components on the injector such as a stroke encoder and the like are.
  • the method according to the invention can be used, for example relatively easy by using suitable software in the existing one Execute electronic engine control.
  • Fig. 1 of the drawing shows a schematic Sectional view of the control valve known from US Pat. No. 5,640,987.
  • a control valve is used to Flow of a fluid to the pressure booster of a fuel injector to control the timing in order to reduce the pressure in one Increase pressure chamber in the injector from which the fuel then via the injection nozzle into the combustion chamber of the internal combustion engine is injected.
  • the control valve can be used as a 2-, 3 or 4-way valve.
  • the control valve shown in Fig. 1 of the drawing 10 has a housing 12 with a first opening 14 and one second opening 16.
  • the openings 14, 16 open into one Valve chamber 18 in the housing 12 Fuel supplied from a fuel accumulator.
  • the opening 16 provides the connection to the pressure booster of the injector ago.
  • a valve slide is axially movable in the valve chamber 18 20 used with a circumferential groove 22.
  • the Valve slide 20 can be between a left end position, which is shown in Fig. 1, and a right Move end position (not shown) back and forth.
  • the housing 12 has a first leakage opening 17 and one second leakage opening 19, each in one end face the valve chamber 18 end and are kept depressurized.
  • the groove 22 is still the two openings 14, 16 so opposite that that of the lateral boundary the control edge 24 formed in the groove 22 in the left end position of the valve spool 20 the fluid connection between the openings 14, 16 blocked while in the other, right end position of the valve slide 20, the fluid connection is established becomes.
  • the left end position of the valve spool in the drawing 20 is thus the closed position and the opposite right end position of the valve slide 20 Open position of the control valve 10.
  • the control valve 10 further includes a first one Magnet coil 30 and a second magnet coil spatially separated therefrom 32. That means that in the area of the two axial Ends of the valve spool 20 in the housing 12 of the control valve 10 each have a magnetic coil 30, 32 for generating magnetic Forces for movement of the valve spool 20 are provided is.
  • the first magnetic coil 30 is shown in the illustration in FIG. 1 of the drawing arranged on the right side of the valve chamber 18 and can slide valve 20 into the right end position (the open position) move while the second solenoid 32 attached to the left side of the valve chamber 18 and is provided for the valve slide 20 in the to bring the left end position (the closed position).
  • the Leads 34 to the solenoids 30, 32 are with a electrical control circuit (not shown) connected.
  • the first solenoid 30 In order to open the control valve 10 so that a fluid, i.e. the fuel from the first opening 14 to the second Opening 16 and thus from the memory to the pressure booster in Fuel injector can flow, the first solenoid 30 from the electrical control circuit with a control current applied. After the valve spool 20 due to this the right end position acting on the magnetic force has reached, the current for the first solenoid 30 switched off again.
  • the valve spool 20 and that Housing 12 of the control valve 10 consist of suitable magnetic Materials so that the valve slide 20 without Current in the first solenoid 30 due to the magnetic Hysteresis in the right end position, the open position, remains.
  • the control valve 10 is closed again by that the second solenoid 32 for a certain time with one Control current is applied, so that on the valve spool 20 a magnetic force acts on him in the left Closed position brings.
  • Fig. 2 shows the drawing the valve stroke in the time correlation to the upper part the valve spool 20.
  • the control circuit starts energizing the first solenoid 30. Then, with a certain delay at time t 2, the valve slide 20 begins to move in the direction of the right end position, the open position. This start of movement is detected by the second magnet coil 32, which was switched as a sensor at that time, on the basis of the current or the voltage induced in the second magnet coil 32. If the valve slide 20 stops at its right end position (the open position) and therefore no longer moves, it also does not induce any current or voltage in the second solenoid coil 32. This gives the exact time t 3 in which the valve slide 20 comes to rest in its right end position. As a result, the current for the first magnetic coil 30 can be switched off immediately after the time t 4 .
  • the time t 2 determines the start of injection, and the time period from t 2 to t 7 essentially determines the injection duration of the injector.
  • the delay times t 2 -t 1 and the switch-off times t 7 -t 5 can be used for the electrical control of each individual injector on the engine Example by suitably defining the times t 1 and t 5 in relation to the crank angle are taken into account, so that deviations from the setpoint or mean value can be exactly compensated.
  • the times t 1 to t 8 each correspond to a specific crank angle of the engine; the times given can therefore also be replaced by the respective crank angle when the speed is recorded.
  • the present arrangement and the present method can also be used if both magnet coils 30, 32 are generally operated in parallel to increase the switching speed. To determine the times t 1 to t 8 , only a few cycles with only one actively controlled magnet are then to be carried out separately, while the other magnet is used as a sensor as described. The actual behavior of the respective control valve can thus be identified with sufficient accuracy in order to be able to adapt it to the desired behavior via a setting, for example the start of the current supply and / or the strength of the control current.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un système et un procédé permettant de réguler une soupape de commande pour un système d'injection de moteur Diesel. Ce système comprend un injecteur de carburant avec un amplificateur de pression en amont duquel est montée la soupape de commande (10). Le tiroir (20) de la soupape de commande (10) effectue un mouvement de va-et-vient sous l'effet de deux bobines d'excitation (30, 32) séparées dans l'espace. Lorsqu'une des deux bobines d'excitation (30; 32) est excitée avec un courant de commande, l'autre bobine d'excitation (32; 30) est commutée en détecteur, le courant induit dans le détecteur sous l'effet du mouvement du tiroir de soupape (20) étant détecté.

Claims (6)

  1. Dispositif pour le réglage d'un distributeur pour un système d'injection pour diesel, qui comprend un injecteur de carburant équipé d'un amplificateur de pression qui est monté en amont du distributeur (10), le distributeur (10) comprenant un corps (12) qui présente une chambre de distributeur (18) dans laquelle est disposé un tiroir mobile (20) du distributeur, ainsi qu'une première bobine magnétique (30) et une deuxième bobine magnétique (32) destinées au déplacement du tiroir (20) de distributeur, dans lequel, pendant une activation électrique de l'une des deux bobines magnétiques (30 ; 32) avec un courant de commande, l'autre bobine magnétique (32 ; 30) est connectée en capteur, et dans lequel, pendant quelques cycles de fonctionnement de l'injecteur de carburant, le courant induit dans le capteur par un mouvement du tiroir (20) de distributeur est capté dans un circuit de commande, et analysé pour la détermination du comportement de réponse du distributeur (10),
       caractérisé en ce qu'après ces quelques cycles de fonctionnement, le comportement de réponse déterminé est utilisé pour la commande du distributeur (10).
  2. Dispositif selon la revendication 1, caractérisé en ce que, pour la détermination du comportement de réponse du distributeur (10), pendant quelques cycles de fonctionnement de l'injecteur de carburant, seule l'une des bobines magnétiques (30 ; 32) est activée électriquement et l'autre bobine magnétique (32 ; 30) est connectée en capteur et en ce que, pendant les cycles de fonctionnement restants, il se produit une activation parallèle des deux bobines magnétiques (30 ; 32).
  3. Procédé pour le réglage d'un distributeur pour un système d'injection pour diesel, qui comprend un injecteur de carburant équipé d'un amplificateur de pression en amont duquel le distributeur (10) est monté, le distributeur (10) comprenant un corps (12) qui présente une chambre de distributeur (18) dans laquelle est disposé un tiroir mobile (20) de distributeur, ainsi qu'une première bobine magnétique (30) et une deuxième bobine magnétique (32) destinées au déplacement du tiroir (20) de distributeur, dans lequel, pendant une activation électrique de l'une des deux bobines magnétiques (30 ; 32) avec un courant de commande, l'autre bobine magnétique (32 ; 30) est connectée en capteur, et dans lequel, pendant quelques cycles de fonctionnement de l'injecteur de carburant, le courant induit dans le capteur par un mouvement du tiroir (20) de distributeur est capté et analysé pour la détermination du comportement de réponse du distributeur (10),
       caractérisé en ce qu'après ces quelques cycles de fonctionnement, le comportement de réponse déterminé est utilisé pour la commande du distributeur (10).
  4. Procédé selon la revendication 3, caractérisé en ce que, pour la détermination du comportement de réponse du distributeur (10), pendant quelques cycles de fonctionnement de l'injecteur de carburant, seule l'une des bobines magnétiques (30 ; 32) est activée électriquement et l'autre bobine magnétique (32 ; 30) est connectée en capteur et en ce que, pendant les cycles de fonctionnement restants, il se produit une activation parallèle des deux bobines magnétiques (30 ; 32).
  5. Procédé selon la revendication 3, caractérisé en ce que, pour le réglage du comportement de réponse du distributeur (10), on modifie l'instant (t1 ; t5) du début de l'envoi du courant de commande à la bobine magnétique (30 ; 32) activée.
  6. Procédé selon la revendication 3, caractérisé en ce que, pour le réglage du comportement de réponse du distributeur (10), on modifie l'intensité du courant de commande utilisé pour la bobine magnétique activée (30 ; 32).
EP00916760A 1999-03-01 2000-02-24 Systeme et procede de regulation d'une soupape de commande de systeme d'injection pour moteur diesel Expired - Lifetime EP1157205B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19908812 1999-03-01
DE19908812 1999-03-01
PCT/DE2000/000521 WO2000052326A1 (fr) 1999-03-01 2000-02-24 Systeme et procede de regulation d'une soupape de commande de systeme d'injection pour moteur diesel

Publications (2)

Publication Number Publication Date
EP1157205A1 EP1157205A1 (fr) 2001-11-28
EP1157205B1 true EP1157205B1 (fr) 2002-09-11

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Country Status (4)

Country Link
US (1) US6494187B2 (fr)
EP (1) EP1157205B1 (fr)
DE (1) DE50000490D1 (fr)
WO (1) WO2000052326A1 (fr)

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US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance

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US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
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US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module

Also Published As

Publication number Publication date
DE50000490D1 (de) 2002-10-17
WO2000052326A1 (fr) 2000-09-08
US20020029765A1 (en) 2002-03-14
US6494187B2 (en) 2002-12-17
EP1157205A1 (fr) 2001-11-28

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