EP1157205A1 - 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

Info

Publication number
EP1157205A1
EP1157205A1 EP00916760A EP00916760A EP1157205A1 EP 1157205 A1 EP1157205 A1 EP 1157205A1 EP 00916760 A EP00916760 A EP 00916760A EP 00916760 A EP00916760 A EP 00916760A EP 1157205 A1 EP1157205 A1 EP 1157205A1
Authority
EP
European Patent Office
Prior art keywords
valve
control
control valve
solenoid
current
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.)
Granted
Application number
EP00916760A
Other languages
German (de)
English (en)
Other versions
EP1157205B1 (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
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1157205A1 publication Critical patent/EP1157205A1/fr
Application granted granted Critical
Publication of EP1157205B1 publication Critical patent/EP1157205B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 regulating a control valve for a diesel injection system according to the preamble of claim 1 and of claim 3.
  • Such an arrangement and such a method 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 different technologies are used for different engines. Systems are particularly popular in the commercial vehicle sector
  • valve spool and the housing of the control valve are made of suitable magnetic materials, so that the valve spool remains in the respective end position even without current due to the hysteresis of the magnetic material of the spool and the housing.
  • This type of control valve is called a digital valve because of its bistable behavior.
  • the valve can be designed as a 2-, 3- or 4-way valve.
  • the object of the present invention is to design the above-mentioned arrangement and the above-mentioned method in such a way that the large scatter of the injectors in the injection behavior is reduced and the engine running is better or more uniform.
  • the information obtained in this way about the characteristic response behavior of the control valve when actuated can be processed in the context of an intelligent control system in such a way that the injection behavior of the respective injector is improved in such a way that deviations from the individual target values of the injection parameters are reduced. For example, a longer dead time between the start of energization of the solenoid coil and the start of the movement of the valve spool in a control valve or generally a delayed switching behavior can be compensated for by an earlier start of energization or another voltage supply.
  • the characteristic behavior of the valve can be determined from a few cycles of the switching cycle with just one activated magnet within a short period of time with sufficient accuracy
  • the arrangement according to the invention and the method according to the invention have the advantage that no additional components on the injector, such as stroke transmitters and the like, are required.
  • the method according to the invention can, for example, be carried out relatively easily by means of suitable software in the existing electronic motor control.
  • Fig. 1 shows the section through a control valve
  • 2 shows the control valve lift m as a function of time or the crank angle in the case of electromagnetic control of the control valve of FIG. 1.
  • Fig. 1 of the drawing shows a schematic
  • control valve known from US Pat. No. 5,640,987.
  • a control valve is used to time the flow of a fluid to the pressure booster of a fuel injector, thereby increasing the pressure m in a pressure chamber in the injector, from which the fuel is then injected via the injection nozzle m into the combustion chamber of the internal combustion engine.
  • the control valve can be designed as a 2-, 3- or 4-way valve.
  • the control valve 10 shown in FIG. 1 of the drawing has a housing 12 with a first opening 14 and a second opening 16.
  • the openings 14, 16 open a valve chamber 18 in the housing 12.
  • the fuel is supplied from a fuel accumulator via the opening 14.
  • the opening 16 establishes the connection to the pressure booster of the injector.
  • a valve spool 20 with a circumferential groove 22 is inserted in the valve chamber 18 in an axially movable manner.
  • the valve slide 20 can move back and forth between a left end position, which is shown in FIG. 1, and a right end position (not shown).
  • the housing 12 has a first leakage opening 17 and a second leakage opening 19, each of which ends at one end of the valve chamber 18 and is kept depressurized.
  • the groove 22 lies opposite the two openings 14, 16 such that the control edge 24 formed by the lateral boundary of the groove 22 blocks the fluid connection between the openings 14, 16 in the left end position of the valve spool 20, while in the other, right end - Position of the valve spool 20, the fluid connection is produced.
  • the end position of the valve slide 20 on the left in the drawing is thus the closed position and the the right end position of the valve slide 20 lying opposite the open position of the control valve 10.
  • the control valve 10 further comprises a first solenoid 30 and a second solenoid 32 which is spatially separated therefrom.
  • a solenoid 30, 32 each for generating magnetic forces is provided for movement of the valve slide 20.
  • the first solenoid 30 is shown in the illustration of F g. 1 of the drawing arranged on the right side of the valve chamber 18 and can move the valve spool 20 m to the right end position (the open position), while the second solenoid 32 is attached to the left side of the valve chamber 18 and is intended to move the valve spool 20 m to the left Bring end position (the closed position).
  • the leads 34 to the solenoids 30, 32 are connected to an electrical control circuit (not shown).
  • Fuel injector can flow, the first solenoid 30 is acted upon by the electrical control circuit with a control current. After the valve slide 20 has reached the right end position due to the magnetic force acting on it, the current for the first solenoid 30 is switched off again.
  • the valve spool 20 and the housing 12 of the control valve 10 are made of suitable magnetic materials, so that the valve spool 20 remains in the right end position, the open position, even without current from the first solenoid 30 due to the magnetic hysteresis.
  • the control valve 10 is closed again by applying a control current to the second solenoid 32 for a certain time, so that a magnetic force acts on the valve slide 20, which brings it to the left closed position.
  • the respective other magnet coil 32, 30 is switched as a sensor and the current induced in the sensor by a movement of the valve slide 20, which is made of a magnetic material (or the induced voltage) m of the control circuit is detected and evaluated to determine the response behavior of the respective control valve 10.
  • FIG. 2 of the drawing shows schematically and by way of example its upper part idealized the time profile of the control current supplied to the first solenoid coil 30 (solid line) and the time profile of the control current supplied to the second solenoid coil 32 (dashed line) .
  • the actual current profile deviates from the ideal profile shown to simplify the explanation and, as stated above, can be used to determine the characteristic response behavior of the control valve.
  • FIG. 2 of the drawing shows the temporal correlation to the upper part of the valve lift of the valve slide 20.
  • the control circuit begins to energize the first solenoid 30.
  • 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 this time, on the basis of the current or voltage induced in the second magnet coil 32. If the valve slide 20 goes to its right end position (the open position) at the stop and therefore no longer moves, it also does not induce any current or voltage in the second solenoid 32. This results in 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 essentially determines the injection duration of the injector.
  • the delay time t 2 -t ⁇ between the start of the energization of the first solenoid valve 30 to open the valve and the actual opening, and the switch-off time t - t 5 between the start of the energization of the second solenoid valve 32 to switch off the valve and the actual switch-off thus influence the most important injection parameters of the injector.
  • the times If ti to t 8 are recorded precisely on each injector, the deceleration times t 2 -t ⁇ and the shutdown tents t 7 -ts can be taken into account in the electrical control of each individual injector on the engine, for example by suitably setting the times ti and t ⁇ in relation to the crank angle are so that deviations from the target or mean value can be compensated exactly.
  • the current intensity and / or the voltage of the control current and the like can of course also be changed to compensate for deviations.
  • the times ti 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 ti to t ⁇ , 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. This allows the actual behavior of the respective control valve to 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.

Landscapes

  • 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.
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 true EP1157205A1 (fr) 2001-11-28
EP1157205B1 EP1157205B1 (fr) 2002-09-11

Family

ID=7899259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00916760A Expired - Lifetime EP1157205B1 (fr) 1999-03-01 2000-02-24 Systeme et procede de regulation d'une soupape de commande de systeme d'injection pour moteur diesel

Country Status (4)

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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator

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US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator

Also Published As

Publication number Publication date
WO2000052326A1 (fr) 2000-09-08
US6494187B2 (en) 2002-12-17
US20020029765A1 (en) 2002-03-14
DE50000490D1 (de) 2002-10-17
EP1157205B1 (fr) 2002-09-11

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