EP0764238B1 - Procede et dispositif pour la commande d'un consommateur electromagnetique - Google Patents

Procede et dispositif pour la commande d'un consommateur electromagnetique Download PDF

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Publication number
EP0764238B1
EP0764238B1 EP95920757A EP95920757A EP0764238B1 EP 0764238 B1 EP0764238 B1 EP 0764238B1 EP 95920757 A EP95920757 A EP 95920757A EP 95920757 A EP95920757 A EP 95920757A EP 0764238 B1 EP0764238 B1 EP 0764238B1
Authority
EP
European Patent Office
Prior art keywords
time
current
switching
solenoid valve
movable 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.)
Expired - Lifetime
Application number
EP95920757A
Other languages
German (de)
English (en)
Other versions
EP0764238A1 (fr
Inventor
Michael Kirschner
Torsten Henke
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.)
Robert Bosch GmbH
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
Publication of EP0764238A1 publication Critical patent/EP0764238A1/fr
Application granted granted Critical
Publication of EP0764238B1 publication Critical patent/EP0764238B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator
    • 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
    • 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
    • F02D2041/2031—Control of the current by means of delays or monostable multivibrators
    • 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 an apparatus for Control of an electromagnetic consumer according to the General terms of the independent claims.
  • a method and a device for controlling an electromagnetic Consumer is from DE-OS 34 26 799 (US-A 4,653,447). At the facility described there are the switching times and, based on this, the switch-on times and switch-off times of the solenoid valve are detected. Outgoing from the time course of the current through the solenoid valve the exact switching time of the solenoid valve is determined.
  • DE-OS 42 37 706 is a device for recognizing the switching time for a solenoid valve known. At this The valve is actuated in a timed manner. Of the current flowing through the valve is regulated to a setpoint. The time at which the duty cycle changes is recognized as the switching time.
  • Such solenoid valves are preferably used to control the injection of fuels in petrol and / or diesel engines used. For exact metering of even the smallest injection quantities of particular interest is the switching time at which the Armature of the energized solenoid valve each one of its two End positions reached.
  • the procedure is such that in one Time window within which the switching time is usually occurs, the current profile is evaluated and based on its time Course of the switching time is determined.
  • the voltage applied to the solenoid valve to a certain value adjusted. So it becomes a constant solenoid valve voltage to generate a steady course of the solenoid valve current provided.
  • the voltage is regulated the switching devices involved will be the Control device depending on the voltage level with one part considerable power loss, which in the short term to an undesirable increase in the temperature of the switching means leads.
  • the invention has for its object in a method and a device for controlling an electromagnetic Consumer, of the type mentioned at the beginning of the power loss to reduce.
  • the Current level force level
  • the provision of a suitable duty cycle with a constant switching pattern does not represent one Microcomputer still a complex for separate hardware Task and can therefore with regard to the implementation effort can be called simple. Furthermore there is no filtering of the signal.
  • FIG. 1 shows a block diagram of the device according to the invention, the figure 2 different signals plotted over time
  • FIG. 3 a flowchart to illustrate the invention
  • Procedure and Figure 4 is a detailed illustration of a Part of FIG. 2.
  • the exemplary embodiment described is a device for controlling an electromagnetic Consumer.
  • the device described is and the described method in connection with any electromagnetic consumers can be used. she is not limited to the specific application. Particularly advantageous is, however, the device according to the invention and that Method according to the invention in connection with internal combustion engines to be used, especially when metering Fuel in a combustion chamber of a self-igniting internal combustion engine. For this purpose it is particularly advantageous Way a solenoid valve to control the metering of Fuel used in the internal combustion engine.
  • GDP beginning of injection period
  • the time course of the current is preferably constant Voltage or the course of the voltage over time constant current evaluated whether this course a kink or a significant evaluable change in Has difference quotients of the size under consideration.
  • a such device is for example from DE-OS 42 238 891 known.
  • FIG. 1 are essential elements of a device schematically for controlling a solenoid-controlled fuel metering device shown.
  • a switching means 110 Via a switching means 110 is an electromagnetic consumer 100 with a voltage supply device (Ubat) connected.
  • the switching device is controlled by a control device 120.
  • the Control device 120 can in turn be controlled by a current or a duty cycle specification 130.
  • the other connection of the electromagnetic consumer stands over a sensor 145 or a current detection means connected to earth.
  • the sensor 145 is equipped with an evaluation circuit 140 and this with the voltage regulation or the current control 130 or with the control device 120 in connection.
  • the control device controls 120 a further switching means 115, which is between the sensor 145 and the evaluation 140 is arranged.
  • the sequence of the components in the series connection from the switching means 110, the consumer 100 and the sensor 145 can be chosen arbitrarily.
  • Transistors in particular, are preferably used as switching means Field effect transistors used.
  • the stroke H is the The dot-dash solenoid valve or the armature, which on Consumer 100 falling voltage UM with a solid Line and the one flowing through the consumer 100 Current IM is drawn with a dashed line.
  • the control device controls at a predetermined time T1 120 the switching means 110 so that the voltage assumes a second value U2. This value is in the range the battery voltage Ubat. At the same time, the Current IM over time. The armature of the solenoid valve shows initially no reaction.
  • This state remains until the current through the solenoid valve reaches a predetermined threshold.
  • This threshold is in the range of a few amperes. Is If this threshold value is reached, the current control generates 130 a corresponding signal and forwards this to the control device 120 further.
  • the control device 120 controls the switching means 110 so that it opens again. This in turn causes the solenoid valve to drop flowing current.
  • the current control 130 compares the current value detected by the sensor 145 with a predetermined value Setpoint and generated depending on the comparison result a signal to act on the control device 120.
  • the control device 120 provides by opening and Closing the switching means 130 the current to the setpoint on.
  • this setpoint is approx. 10 amps.
  • the anchor in begins To move towards its second end position X2.
  • the method according to the invention is shown in FIG. 3 as a flow chart shown.
  • the first step is to start out of different operating parameters 305 times T2 and T3 given. It is particularly advantageous if the values T2 and T3 depending on operating parameters, such as the speed, the amount of fuel injected or others Sizes are specified. This can be done using, for example a map. Define the times T2 and T3 a time window within which the switching time GDP is expected to occur.
  • the query 310 checks whether the time T2 has already reached is. In known systems, at time T2 switched to voltage regulation. This means that the switching means 110 by suitable control in the linear Range of its characteristic curve is operated and therefore a significant one Power loss stress occurs. This power loss reduces the efficiency of the electronic Injection system.
  • the procedure is as follows. Within of the time window becomes a clocked voltage control passed over.
  • the control device 120 or from a superordinate microcomputer in Step 320 a drive pulse pattern of fixed frequency and with fixed but adjustable duty cycle. This Duty cycle is chosen so that it connects with the almost constant battery voltage one in your Mean value also almost constant voltage UMV am Solenoid valve sets.
  • the frequency F or the period of the control signal are chosen so that the evaluation circuit is sufficient Has time to do the calculations.
  • step 330 the switching means 110 and 115 with the corresponding control signal is applied.
  • step 335 The sensor 145 detects the one flowing through the consumer 100 Electricity.
  • the mean value of the solenoid valve current IM shows the same Course on, as with a constant voltage.
  • the pulsed operating mode causes the solenoid valve current to oscillate however, around its mean. These fluctuations complicate the evaluation of the current profile generated in this way.
  • the current is evaluated synchronously. That is, the Electricity is generated at fixed times after switching on the final stage and / or at fixed times after the Switching off the switching means 110 detected. These time discrete Current values are then fed to evaluation 140.
  • the switch 110 and 115 controlled by the control 120 simultaneously.
  • the difference quotient of the current-time curve can from the sampled during the time window in a simple manner Current values can be calculated. Starting from this Determination of the difference quotient is made using known ones Software evaluation process calculates the switching times.
  • the mean value of the solenoid valve voltage by specifying a fixed duty cycle with constant Period T for generating a "GDP" that can be evaluated Current flow while saving voltage regulation controlled.
  • the time falls from time T2 Average of the current slowly decreases. This drop is harmonics in integer multiples of the frequencies of the Control signal superimposed.
  • the anchor continues its movement towards its new end position X2.
  • the query 340 checks whether the time T3 has been reached. If this is not the case, the consumer is in the Steps 330 further driven and the current in step 335 recorded.
  • FIG. 2 A section of FIG. 2 is shown in more detail in FIG. 4 to illustrate various values.
  • T is the period of the control signal.
  • T g denotes the time period in which the consumer is switched on.
  • T 0 denotes the time period in which the consumer is switched off.
  • T A denotes the time at which the measured value of the current is recorded.
  • the difference quotient can be easily calculated from the sampled current values.
  • the value i u (k + 1) is the current sample value for the current at the time (k + 1) and the value i u (k) is the sample value for the current at the time (k).
  • the time k is earlier than the time (k + 1).
  • the current values can also be sampled at a fixed, predefinable time T A after switching off. In this case, a corresponding formula applies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (6)

  1. Procédé de commande d'un consommateur électromagnétique comportant un élément mobile notamment une électrovanne pour doser le carburant dans un moteur à combustion interne, et à l'intérieur d'une fenêtre de temps, il est prévu un instant de commutation d'un élément mobile par l'exploitation du profil dans le temps d'une grandeur qui correspond au courant traversant le consommateur électromagnétique,
    caractérisé en ce que
    pendant la fenêtre de temps, une commande cadencée de la tension a lieu avec une fenêtre prédéterminée et un rapport de travail donné.
  2. Procédé selon la revendication 1,
    caractérisé en ce qu'
    on exploite des valeurs de courant discrètes.
  3. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les valeurs du courant sont exploitées en synchronisme pour la commande.
  4. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les valeurs d'intensité sont détectées à des instants prédéterminés après le branchement ou la coupure.
  5. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    partant des valeurs d'intensité, on calcule un quotient de différence selon la formule : Δi/T = (Iu(k+1) - Iu(k)) / T pour la valeur Iu(k+1) est la valeur du courant à l'instant (k+1), pour laquelle la valeur Iu(k) traite pour la valeur Uu(k) autour de l'intensité à l'instant (k) et pour T il s'agit du signal de commande de la période de signal T.
  6. Dispositif de commande d'un consommateur électromagnétique comprenant un élément mobile notamment une électrovanne pour doser le carburant dans le moteur à combustion interne, qui correspond à des moyens qui ont à l'intérieur d'une fenêtre de temps, un instant de commutation des éléments mobiles et par l'exploitation du profil résiduel d'une grandeur qui correspond au courant à travers le consommateur électromagnétique usuel,
    caractérisé en ce qu'
    il comporte des moyens qui effectuent pendant la fenêtre de temps, une commande de tension cadencée avec une fréquence prédéterminée et un rapport de travail prédéterminé.
EP95920757A 1994-06-10 1995-06-06 Procede et dispositif pour la commande d'un consommateur electromagnetique Expired - Lifetime EP0764238B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4420282 1994-06-10
DE4420282A DE4420282A1 (de) 1994-06-10 1994-06-10 Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
PCT/DE1995/000731 WO1995034754A1 (fr) 1994-06-10 1995-06-06 Procede et dispositif pour la commande d'un consommateur electromagnetique

Publications (2)

Publication Number Publication Date
EP0764238A1 EP0764238A1 (fr) 1997-03-26
EP0764238B1 true EP0764238B1 (fr) 1999-04-14

Family

ID=6520254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95920757A Expired - Lifetime EP0764238B1 (fr) 1994-06-10 1995-06-06 Procede et dispositif pour la commande d'un consommateur electromagnetique

Country Status (5)

Country Link
US (1) US5835330A (fr)
EP (1) EP0764238B1 (fr)
JP (1) JP3827717B2 (fr)
DE (2) DE4420282A1 (fr)
WO (1) WO1995034754A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009044953A1 (de) 2009-09-24 2011-03-31 Robert Bosch Gmbh Verfahren zum Ansteuern eines elektromagnetischen Verbrauchers sowie entsprechende Schaltung

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611885B4 (de) * 1996-03-26 2007-04-12 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung eines elektromagnetischen Schaltorgans
DE19735560B4 (de) * 1997-08-16 2007-06-21 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung eines Verbrauchers
DE29715925U1 (de) * 1997-09-05 1997-10-23 Festo AG & Co, 73734 Esslingen Schaltungsvorrichtung
DE19750027A1 (de) 1997-11-12 1999-05-20 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
DE19854305A1 (de) * 1998-11-25 2000-05-31 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
US6404612B1 (en) 1999-07-10 2002-06-11 Mykrolis Corporation Method for system for driving a solenoid
US6148804A (en) * 1999-11-22 2000-11-21 Daimlerchrysler Corporation Duty cycling feature for the proportional purge solenoid to improve low flow resolution
US6651629B2 (en) 2001-01-04 2003-11-25 Mccoy John C. Internal energizable voltage or current source for fuel injector identification
DE10235188B3 (de) * 2002-07-26 2004-04-01 Hydac Electronic Gmbh Verfahren zum Ermitteln der Position eines Stellelements eines elektrisch antreibbaren Aktuators, zugehörige Schaltungsanordnung und Vorrichtung
US7107976B2 (en) * 2003-02-13 2006-09-19 Siemens Vdo Automotive Corporation Inductive load powering arrangement
JP4715807B2 (ja) * 2007-05-24 2011-07-06 トヨタ自動車株式会社 燃料噴射装置の調整方法、及び燃料噴射装置の制御装置
EP2060762A1 (fr) * 2007-11-15 2009-05-20 Delphi Technologies, Inc. Détecteur d'impulsion transitoire et procédé de détection d'événements d'impulsion transitoire
DE102009002483A1 (de) * 2009-04-20 2010-10-21 Robert Bosch Gmbh Verfahren zum Betreiben eines Einspritzventils
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
US9453488B2 (en) 2013-10-29 2016-09-27 Continental Automotive Systems, Inc. Direct injection solenoid injector opening time detection
JP6079571B2 (ja) * 2013-11-11 2017-02-15 株式会社デンソー 電磁弁駆動装置
GB2561549B (en) * 2017-04-06 2019-05-29 Delphi Tech Ip Ltd Method of detecting a doser valve opening or closing event
EP3385528B1 (fr) * 2017-04-06 2020-10-28 Vitesco Technologies GmbH Procédé pour détecter un point de commutation d'une soupape à solénoïde commutable, circuit électronique, pompe et véhicule à moteur
US11220969B1 (en) * 2021-03-18 2022-01-11 Ford Global Technologies, Llc Methods and systems for improving fuel injection repeatability
US11313310B1 (en) * 2021-05-04 2022-04-26 Ford Global Technologies, Llc Methods and systems for improving fuel injection repeatability

Family Cites Families (7)

* 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
JP2623242B2 (ja) * 1987-01-16 1997-06-25 本田技研工業株式会社 電磁作動器駆動回路の電流検出装置
US5053911A (en) * 1989-06-02 1991-10-01 Motorola, Inc. Solenoid closure detection
DE4308811B9 (de) * 1992-07-21 2004-08-19 Robert Bosch Gmbh Verfahren und Einrichtung zur Steuerung einer magnetventilgesteuerten Kraftstoffzumeßeinrichtung
DE4237706C2 (de) * 1992-11-07 1996-09-12 Mtu Friedrichshafen Gmbh Einrichtung zur Aufschlagzeitpunkt-Erkennung für den Anker eines Magnetventils
US5539608A (en) * 1993-02-25 1996-07-23 Eaton Corporation Electronic interlock for electromagnetic contactor
DE4322199C2 (de) * 1993-07-03 2003-06-18 Bosch Gmbh Robert Verfahren und Einrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009044953A1 (de) 2009-09-24 2011-03-31 Robert Bosch Gmbh Verfahren zum Ansteuern eines elektromagnetischen Verbrauchers sowie entsprechende Schaltung
DE102009044953B4 (de) 2009-09-24 2019-12-05 Robert Bosch Gmbh Verfahren zum Ansteuern eines elektromagnetischen Verbrauchers sowie entsprechende Schaltung

Also Published As

Publication number Publication date
JPH10501597A (ja) 1998-02-10
DE59505663D1 (de) 1999-05-20
DE4420282A1 (de) 1995-12-14
WO1995034754A1 (fr) 1995-12-21
EP0764238A1 (fr) 1997-03-26
US5835330A (en) 1998-11-10
JP3827717B2 (ja) 2006-09-27

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