EP0823017B1 - Procede de pilotage de la bobine d'excitation d'une pompe a piston alternatif et a commande electromagnetique - Google Patents

Procede de pilotage de la bobine d'excitation d'une pompe a piston alternatif et a commande electromagnetique Download PDF

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Publication number
EP0823017B1
EP0823017B1 EP96914114A EP96914114A EP0823017B1 EP 0823017 B1 EP0823017 B1 EP 0823017B1 EP 96914114 A EP96914114 A EP 96914114A EP 96914114 A EP96914114 A EP 96914114A EP 0823017 B1 EP0823017 B1 EP 0823017B1
Authority
EP
European Patent Office
Prior art keywords
current
pulse
energizing
energizing coil
control circuit
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
EP96914114A
Other languages
German (de)
English (en)
Other versions
EP0823017A1 (fr
Inventor
Wolfgang Heimberg
Knut Bartsch
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.)
Ficht GmbH and Co KG
Original Assignee
Ficht GmbH and Co KG
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 Ficht GmbH and Co KG filed Critical Ficht GmbH and Co KG
Publication of EP0823017A1 publication Critical patent/EP0823017A1/fr
Application granted granted Critical
Publication of EP0823017B1 publication Critical patent/EP0823017B1/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
    • 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
    • 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
    • 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
    • F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
    • F02D2041/2006—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening by using a boost capacitor
    • 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
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • 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
    • F02D2041/2034—Control of the current gradient
    • 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

  • Electromagnetically driven reciprocating pump is out of the WO-A-93 18290 known.
  • This method uses a current control circuit used depending on a current setpoint in the form of a preset current or a preset voltage excitation current flowing through the excitation coil 600 (FIG. 1) controls.
  • the excitation coil 600 is connected to a power transistor 601 connected via a measuring resistor 602 to ground is present, at the control input of transistor 601, for example to the transistor base, a comparator 603 with its Output is created.
  • the non-inverting input of the Comparator 603 is acted upon by the current setpoint that for example by means of a microcomputer.
  • each pulse of the current setpoint is assigned a gradually rising rising edge driven, one correspondingly gradually rising rising edge at the pulse of the Excitation current in the excitation coil causes, the excitation current does not change faster than that due to the mutual induction limited maximum current change in the excitation coil allows the at the minimum available voltage is possible.
  • the method according to the invention thus becomes a current setpoint Curve 90 predefined at the input of the current control circuit, which causes a corresponding excitation current 91 in the excitation coil (Fig. 6).
  • the course of the current setpoint curve 90 becomes like this chosen so that the excitation current 91 obtained here is always in the control range the current control circuit, i.e. the slope of the Current setpoint curve 90 smaller than the maximum current change at the minimum available at the excitation coil Tension is. As stated above, this tension can be dependent vary greatly in temperature and engine load.
  • the armature 10 is in the de-energized state of the coil 9 Pump 1 by the bias of the spring 12 on the bottom 11a.
  • the Fuel feed valve 16 is closed and the storage membrane 23 is by the spring 24 in its by the Abutment surface 22a held in the withdrawn position in the housing cavity.
  • the coil 9 is switched off. Of the Armature 10 is moved back to floor 11a by spring 12. The amount of liquid stored in the storage device 6 via lines 7 and 2 in the feed cylinder 15 sucked back, and the membrane 23 as a result of the action of Spring 24 pushed back into its original position. At the same time opens the fuel supply valve 16 so that fuel from the Tank 5 is sucked up.
  • the excitation or coil current i sp through the excitation coil 9 causes a stroke s of the armature 10 or the delivery piston 14, which is offset in time with respect to the onset of the excitation current.
  • the pressure build-up of the injection pressure p takes place with a time offset with respect to the stroke s, namely only when the displacement of the fuel is suddenly stopped and the fuel is suddenly compressed due to the already high kinetic energy of the delivery piston 14 (FIG. 4).
  • the corresponding adaptation which is generally carried out by reference voltage 111 (U 0 ), does not have to be readjusted permanently, but can, for example, be adapted to the changed motor states at time intervals which correspond to one motor revolution. This means a considerable relief for the control device to be used.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Claims (9)

  1. Procédé de commande d'une bobine d'excitation d'une pompe à piston alternatif à entraínement magnétique utilisée comme dispositif d'injection de carburant, dans lequel la bobine d'excitation est excitée par un courant d'excitation en forme d'impulsions à haute fréquence par l'intermédiaire d'un circuit de commande du courant, et chaque impulsion produit un a-coup de déplacement d'un induit entraíné par la bobine d'excitation, et le circuit de commande du courant commande le courant d'excitation passant dans la bobine d'excitation en fonction d'une courbe de la valeur de consigne du courant,
    caractérisé en ce que
    chaque impulsion de la courbe de la valeur de consigne du courant présente un flanc montant, progressivement croissant qui produit un flanc montant, progressivement croissant, correspondant, de l'impulsion de courant d'excitation dans la bobine d'excitation, la courbe de la valeur de consigne du courant étant commandée de telle sorte que le courant d'excitation ne varie pas plus rapidement que la modification maximale du courant, limitée à cause de la contre-induction, qui est possible à la tension minimale disponible sur la bobine d'excitation.
  2. Procédé selon la revendication 1, caractérisé en ce que le flanc montant, progressivement croissant de la courbe de la valeur de consigne du courant est commandé pour évoluer à la manière d'une fonction exponentielle.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on détecte une vitesse de rotation du moteur et/ou une température régnant dans la bobine d'excitation pour adapter la courbe de la valeur de consigne du courant à la tension disponible sur la bobine d'excitation.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la courbe de la valeur de consigne du courant est calculée par un microprocesseur et est par exemple appliquée au circuit de commande du courant à l'aide d'un convertisseur numérique/analogique.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que chaque impulsion de la courbe de la valeur de consigne du courant correspond à une fonction exponentielle sur l'ensemble de son évolution.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que la courbe de la valeur de consigne du courant est adaptée à une géométrie spéciale de la pompe à piston alternatif, en particulier à une dépendance de la force (F) vis-à-vis de l'interstice d'air de travail (1), et présente par exemple une forme en cloche.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que l'évolution de la courbe de la valeur de consigne du courant est produite au moyen d'un circuit de commande de la valeur de consigne, dans lequel le circuit de commande de la valeur de consigne présente un élément RC doté d'une résistance (112) et d'un condensateur (113), le condensateur (113) est chargé à travers la résistance (112) à des intervalles de temps réguliers, et produit ainsi une courbe de la valeur de consigne du courant en forme d'impulsion correspondant à une fonction exponentielle.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la longueur des impulsions et l'évolution de la montée des impulsions de la courbe de la valeur de consigne du courant sont commandées de manière mutuellement indépendante, en appliquant un signal (111) en impulsions rectangulaires à un commutateur (114) qui court-circuite le condensateur (113), et en appliquant une tension de référence (111) au condensateur (113) à travers la résistance (112), dont la valeur peut être modifiée.
  9. Procédé selon l'une des revendications i à 8, caractérisé en ce que l'on utilise comme dispositif d'injection de carburant un dispositif d'injection de carburant PDS travaillant suivant le principe de l'accumulateur à corps solide.
EP96914114A 1995-04-28 1996-04-24 Procede de pilotage de la bobine d'excitation d'une pompe a piston alternatif et a commande electromagnetique Expired - Lifetime EP0823017B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19515775 1995-04-28
DE19515775A DE19515775C2 (de) 1995-04-28 1995-04-28 Verfahren zum Ansteuern einer Erregerspule einer elektromagnetisch angetriebenen Hubkolbenpumpe
PCT/EP1996/001716 WO1996034192A1 (fr) 1995-04-28 1996-04-24 Procede de pilotage de la bobine d'excitation d'une pompe a piston alternatif et a commande electromagnetique

Publications (2)

Publication Number Publication Date
EP0823017A1 EP0823017A1 (fr) 1998-02-11
EP0823017B1 true EP0823017B1 (fr) 1999-08-11

Family

ID=7760677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96914114A Expired - Lifetime EP0823017B1 (fr) 1995-04-28 1996-04-24 Procede de pilotage de la bobine d'excitation d'une pompe a piston alternatif et a commande electromagnetique

Country Status (10)

Country Link
US (1) US6024071A (fr)
EP (1) EP0823017B1 (fr)
JP (1) JP3264375B2 (fr)
KR (1) KR19990008091A (fr)
AT (1) ATE183283T1 (fr)
AU (1) AU692103B2 (fr)
CA (1) CA2217532A1 (fr)
DE (2) DE19515775C2 (fr)
ES (1) ES2136405T3 (fr)
WO (1) WO1996034192A1 (fr)

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WO2002012708A1 (fr) * 2000-08-02 2002-02-14 Mikuni Corporation Injecteur de carburant a commande electronique
US6621269B2 (en) * 2001-04-11 2003-09-16 Daimlerchrysler Corporation System for monitoring solenoid flyback voltage spike
KR20040063157A (ko) * 2001-11-29 2004-07-12 가부시키가이샤 미쿠니 연료분사펌프의 구동방법
US6757149B2 (en) * 2002-03-04 2004-06-29 Visteon Global Technologies, Inc. Method for controlling fuel injector valve solenoid current
US8511105B2 (en) 2002-11-13 2013-08-20 Deka Products Limited Partnership Water vending apparatus
US8069676B2 (en) 2002-11-13 2011-12-06 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
US7340879B2 (en) * 2002-11-13 2008-03-11 Deka Products Limited Partnership Locally powered water distillation system
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US7753657B2 (en) * 2005-02-02 2010-07-13 Brp Us Inc. Method of controlling a pumping assembly
US11826681B2 (en) 2006-06-30 2023-11-28 Deka Products Limited Partneship Water vapor distillation apparatus, method and system
US11884555B2 (en) 2007-06-07 2024-01-30 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
US8006511B2 (en) 2007-06-07 2011-08-30 Deka Products Limited Partnership Water vapor distillation apparatus, method and system
US8359877B2 (en) * 2008-08-15 2013-01-29 Deka Products Limited Partnership Water vending apparatus
CN102297065B (zh) * 2011-08-30 2013-04-17 潍柴动力股份有限公司 具有关闭时间偏差补偿的喷油器
WO2014018896A1 (fr) 2012-07-27 2014-01-30 Deka Products Limited Partnership Commande de la conductivité dans une sortie d'eau de production destinée à un évaporateur
US9500170B2 (en) 2012-10-25 2016-11-22 Picospray, Llc Fuel injection system
DE102014203364B4 (de) * 2014-02-25 2023-03-23 Vitesco Technologies GmbH Verfahren und Vorrichtung zum Betrieb eines Ventils, insbesondere für ein Speichereinspritzsystem
CN109312735A (zh) 2016-05-12 2019-02-05 布里格斯斯特拉顿公司 燃料输送喷射器
US10947940B2 (en) * 2017-03-28 2021-03-16 Briggs & Stratton, Llc Fuel delivery system
US10920768B2 (en) * 2017-09-14 2021-02-16 Milton Roy, Llc Pump drive that minimizes a pulse width based on voltage data to improve intake and discharge strokes
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Also Published As

Publication number Publication date
ES2136405T3 (es) 1999-11-16
DE19515775A1 (de) 1996-10-31
JP3264375B2 (ja) 2002-03-11
AU5761096A (en) 1996-11-18
DE59602721D1 (de) 1999-09-16
JPH11505307A (ja) 1999-05-18
WO1996034192A1 (fr) 1996-10-31
AU692103B2 (en) 1998-05-28
KR19990008091A (ko) 1999-01-25
ATE183283T1 (de) 1999-08-15
US6024071A (en) 2000-02-15
DE19515775C2 (de) 1998-08-06
EP0823017A1 (fr) 1998-02-11
CA2217532A1 (fr) 1996-10-31

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