EP1302952A2 - Procédé et circuit pour la détection de la position de l'armature d'un électroaimant - Google Patents

Procédé et circuit pour la détection de la position de l'armature d'un électroaimant Download PDF

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Publication number
EP1302952A2
EP1302952A2 EP02022489A EP02022489A EP1302952A2 EP 1302952 A2 EP1302952 A2 EP 1302952A2 EP 02022489 A EP02022489 A EP 02022489A EP 02022489 A EP02022489 A EP 02022489A EP 1302952 A2 EP1302952 A2 EP 1302952A2
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EP
European Patent Office
Prior art keywords
voltage
magnetic
reference voltage
comparator
electromagnet
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
EP02022489A
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German (de)
English (en)
Other versions
EP1302952A3 (fr
EP1302952B1 (fr
Inventor
Wolfgang E. Schultz
Dieter Dipl.-Ing. Kleinert
Peter Dr.-Ing. Tappe
Jürgen Dipl.-Ing. Heinzmann
Horst-Peter Dipl.-Ing. Wassermann
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.)
Schultz Wolfgang E Dipl-Ing
Original Assignee
Schultz Wolfgang E Dipl-Ing
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Filing date
Publication date
Application filed by Schultz Wolfgang E Dipl-Ing filed Critical Schultz Wolfgang E Dipl-Ing
Publication of EP1302952A2 publication Critical patent/EP1302952A2/fr
Publication of EP1302952A3 publication Critical patent/EP1302952A3/fr
Application granted granted Critical
Publication of EP1302952B1 publication Critical patent/EP1302952B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a method for detecting the anchor position an electromagnet, the one flowing through the coil Magnet current a magnetic voltage is generated and this magnetic voltage is compared with a reference voltage and determined a corresponding anchor position by this comparison becomes. Furthermore, the invention also relates to a Circuit for detecting the armature position of an electromagnet, the magnetic current flowing through the coil at a resistor leads to a magnetic voltage and this with a Reference voltage is compared in the comparator, where on a corresponding output signal at the output of the comparator can be tapped if the corresponding comparison condition in the comparator of magnetic voltage and reference voltage.
  • Electromagnets are widely used in technology. For example, they are used as actuators for hydraulic valves and so on known. There are a variety of uses where it is important to ensure that the Anchor has tightened, which means that the anchor is in its end position has arrived. In a current-time diagram, this gives one characteristic course, as it is for example in Fig. 2 (instead of the current can serve the magnetic voltage) indicated is.
  • the German patent application is in particular in the prior art 197 33 138 known.
  • the magnetic current is converted into a voltage proportional to the current converted and the converted voltage differentiated.
  • This differentiated magnetic voltage is with a threshold compared. This threshold is differentiated from the Magnetic voltage averaged.
  • the invention has set itself the task of a method or a circuit for detecting the anchor position to make available an electromagnet, on the one hand works reliably and is not so expensive is like the solutions of the prior art.
  • the characteristic current or voltage curve over time for the movement of an armature of an electromagnet is divided into three parts.
  • the one through the coil flowing current breaks in when the armature reaches the end position so "switches".
  • the anchor reaches its end position, so the current rises again to reach the holding current.
  • tensions with each other compare as currents is usually referred to below by magnetic voltage or reference voltage spoken without want to limit the invention to this.
  • the Interposition of a resistor the simple implementation of a variable current into a variable voltage, according to the Ohm's law. Because the magnetic voltage over time may exceed a maximum before reaching the anchor end position if the reference voltage is flattened accordingly Intersection point is generated which is the signal for reaching the anchor is used in the end position.
  • the proposal according to the invention the untreated or only slightly treated magnetic voltage compared to a filtered one or flattened magnetic voltage as Reference voltage. Since the circuit designed in this way is not so is complex, it is also significantly less prone to failure and also inexpensive to manufacture.
  • the submitted invention Concept of a dynamic limit curve method also allows the independence of the process from temperature influences or Magnet types because the reference voltage is not constant but in ratio to the magnetic voltage to be monitored derived from this is.
  • a flattened magnetic voltage is used as the reference voltage proposed.
  • the flattening can, for example achieved by using a low-pass filter as a filter become.
  • the use of the low-pass filter cuts the high-frequency ones Shares of the magnetic field voltage.
  • the so filtered Signal reacts slower than the source signal (magnetic voltage). If the magnetic voltage drops briefly, it cuts (over time) the reference voltage the magnetic voltage. Falling below the reference voltage can be caused by the subsequent electronics (for example a comparator) read out and for appropriate evaluation purposes (optical Signal, process monitoring and so on) can be used.
  • a voltage divider can be provided to a corresponding reduction in the level of the reference voltage to reach under the magnetic voltage.
  • the invention is explained schematically on the circuit arrangement according to FIG. 1.
  • the input voltage U is applied to the magnet. 1
  • the current flowing through the magnet 1 leads to a voltage drop across the shunt resistor 2. This voltage drop is referred to below as the magnetic voltage U M.
  • a reference voltage U R is now generated from the magnetic voltage U M according to the invention.
  • the filter 3 is designed as a low-pass filter and / or voltage divider and generates the reference voltage U R.
  • the magnetic voltage U M and the reference voltage U R are applied to the comparator 4 at different inputs.
  • the comparator 4 now compares the two characteristic curves U M and U R.
  • the comparator 4 can advantageously be designed as an operational amplifier. According to the dimensioning of the filter, the two characteristics only intersect at the switch-on peak, which means when the armature reaches its end position.
  • a holding member 7 and a reset 6 is provided.
  • a voltage stabilization 5 becomes the comparator 4 and Reset 6 supplied.
  • time interval II the current (and thus also the voltage) drops due to the mutual induction and the armature runs into its end position.
  • the switching time i.e. the time at which the armature reaches its end position.
  • time interval III there is again a current (and thus voltage) increase until the holding current.
  • U M the voltage profile U B is indicated when the armature blocks. It is striking that the voltage drop, in particular in time interval II, does not exist for the voltage curve U B and there is therefore a characteristic difference.
  • the derivative of the magnetic voltage is indicated with dU M / dt. This derivation is negative in the time interval II. This signal is used according to the relatively complicated solution of the prior art.
  • FIG. 3 The solution according to the invention is shown in FIG. 3.
  • a reference voltage U R is derived from the magnetic voltage U M.
  • the time interval B is limited by the two intersections B 1 and B 2 of the reference voltage U R with the magnetic voltage U M. Within the time segment B, the reference voltage U R is greater than the magnetic voltage U M.
  • the point in time A which characterizes the switching state or the reaching of the armature end position, is within the time interval B.
  • the proposal according to the invention provides a reliable method for recognizing the end position of the armature, which functions reliably regardless of external influences.
  • the output signal U out is present at the output.
  • This output signal can be displayed optically, for example by providing an LED. It is also possible to supply the output signal U from a monitoring control which monitors the electromagnet and processes the signal accordingly digitally or analogously.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
EP02022489.5A 2001-10-12 2002-10-05 Procédé et circuit pour la détection de la position de l'armature d'un électroaimant Expired - Lifetime EP1302952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10150199A DE10150199A1 (de) 2001-10-12 2001-10-12 Verfahren und Schaltung zur Erkennung der Ankerlage eines Elektromagneten
DE10150199 2001-10-12

Publications (3)

Publication Number Publication Date
EP1302952A2 true EP1302952A2 (fr) 2003-04-16
EP1302952A3 EP1302952A3 (fr) 2004-11-10
EP1302952B1 EP1302952B1 (fr) 2013-04-24

Family

ID=7702177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022489.5A Expired - Lifetime EP1302952B1 (fr) 2001-10-12 2002-10-05 Procédé et circuit pour la détection de la position de l'armature d'un électroaimant

Country Status (3)

Country Link
US (1) US6949923B2 (fr)
EP (1) EP1302952B1 (fr)
DE (1) DE10150199A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1806494A2 (fr) * 2005-09-20 2007-07-11 Siemens Aktiengesellschaft Dispositif et méthode pour détecter la fin du déplacement d'un piston dans une valve
WO2008031650A1 (fr) * 2006-09-16 2008-03-20 Continental Aktiengesellschaft Procédé de régulation et/ou de correction de l'assiette de la caisse d'un véhicule à moteur
WO2010049200A1 (fr) * 2008-10-31 2010-05-06 Zf Friedrichshafen Ag Procédé de détermination de la position d'une armature magnétique d'un actionneur électromagnétique
WO2010069779A1 (fr) * 2008-12-19 2010-06-24 Robert Bosch Gmbh Procédé de détermination d'un mouvement d'induit d'une soupape d'injection
WO2010121868A1 (fr) * 2009-04-20 2010-10-28 Robert Bosch Gmbh Procédé permettant de faire fonctionner une soupape d'injection
WO2011003704A1 (fr) * 2009-07-10 2011-01-13 Continental Automotive Gmbh Détermination du moment de fermeture d’une soupape d’injection de carburant en fonction d’une analyse de la tension de commande
WO2011082902A1 (fr) * 2009-12-14 2011-07-14 Robert Bosch Gmbh Procédé et dispositif de commande pour faire fonctionner une soupape
WO2011082901A1 (fr) * 2009-12-14 2011-07-14 Robert Bosch Gmbh Procédé et dispositif de commande pour faire fonctionner une soupape
WO2011138241A1 (fr) * 2010-05-03 2011-11-10 Continental Automotive Gmbh Ensemble circuit destiné à la détermination du point de fermeture d'une soupape avec une bobine actionnant un induit
EP2455601A1 (fr) 2010-11-17 2012-05-23 Continental Automotive GmbH Procédé et dispositif de commande d'une soupape d'injection
EP2906877A1 (fr) * 2012-10-09 2015-08-19 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé de surveillance d'une vanne à gaz, commande d'une vanne à gaz, et réchaud au gaz
DE102015220263A1 (de) 2014-10-21 2016-04-21 Denso Corporation Steuervorrichtung
EP3937196A3 (fr) * 2020-07-06 2022-01-26 Nabtesco Corporation Appareil d'estimation de position de tiroir, procédé d'estimation de position de tiroir et programme d'estimation de position de tiroir
RU2793305C1 (ru) * 2022-11-24 2023-03-31 Акционерное общество "Корпорация "Московский институт теплотехники" (АО "Корпорация "МИТ") Способ определения положения якоря электромагнита и устройство для его осуществления

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US7483253B2 (en) * 2006-05-30 2009-01-27 Caterpillar Inc. Systems and methods for detecting solenoid armature movement
DE102007063479A1 (de) * 2007-12-20 2008-11-20 Siemens Ag Verfahren und Schaltungsanordnung zum Erzeugen eines eine Endlage eines Elektromagneten anzeigenden Signals
WO2009137241A2 (fr) 2008-04-14 2009-11-12 Bandgap Engineering, Inc. Procédé de fabrication de réseaux de nanofils
DE102009029821A1 (de) 2009-06-18 2010-12-23 Focke & Co.(Gmbh & Co. Kg) Verfahren zum Betreiben eines Beleimungssystems
DE102010018290B4 (de) 2010-04-26 2016-03-31 Continental Automotive Gmbh Elektrische Ansteuerung eines Ventils basierend auf einer Kenntnis des Schließzeitpunkts des Ventils
DE102010019012B4 (de) 2010-05-03 2021-05-27 Vitesco Technologies GmbH Schaltungsanordnung zum Erkennen eines Maximums im Verlauf eines Messsignals
DE102010022109B3 (de) 2010-05-31 2011-09-29 Continental Automotive Gmbh Bestimmung des Schließzeitpunkts eines Einspritzventils basierend auf einer Auswertung der Ansteuerspannung unter Verwendung eines adaptierten Referenzspannungssignals
DE102010041320B4 (de) * 2010-09-24 2021-06-24 Vitesco Technologies GmbH Bestimmung des Schließzeitpunkts eines Steuerventils eines indirekt angetriebenen Kraftstoffinjektors
DE102010064048B4 (de) * 2010-12-23 2013-05-16 Continental Automotive Gmbh Verfahren und Vorrichtung zum Betreiben einer Hochdruckpumpe
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
DE102011075521B4 (de) * 2011-05-09 2013-01-31 Continental Automotive Gmbh Verfahren zum Erkennen eines Schließzeitpunktes eines einen Spulenantrieb aufweisenden Ventils und Ventil
DE102012212242A1 (de) 2012-07-12 2014-01-16 Schaeffler Technologies AG & Co. KG Verfahren zur Ansteuerung eines Aktuators
DE102013205518B4 (de) * 2013-03-27 2023-08-10 Vitesco Technologies GmbH Ermittlung des Zeitpunkts eines vorbestimmten Öffnungszustandes eines Kraftstoffinjektors
DE102013207842B4 (de) 2013-04-29 2015-04-09 Continental Automotive Gmbh Verfahren und Vorrichtung zur Ermittlung eines Referenz-Stromverlaufs für einen Kraftstoffinjektor zur Ermittlung des Zeitpunkts eines vorbestimmten Öffnungszustandes des Kraftstoffinjektors
DE102013214412B4 (de) * 2013-07-24 2016-03-31 Continental Automotive Gmbh Ermittlung des Zeitpunkts eines vorbestimmten Öffnungszustandes eines Kraftstoffinjektors
JP6070502B2 (ja) 2013-10-11 2017-02-01 株式会社デンソー 内燃機関の燃料噴射制御装置
JP6156307B2 (ja) 2013-10-11 2017-07-05 株式会社デンソー 内燃機関の燃料噴射制御装置
JP6260501B2 (ja) 2013-10-11 2018-01-17 株式会社デンソー 内燃機関の燃料噴射制御装置
JP6307971B2 (ja) 2014-03-27 2018-04-11 株式会社デンソー 燃料噴射制御装置
DE102014208753B4 (de) * 2014-05-09 2016-03-31 Continental Automotive Gmbh Ermittlung von Parameterwerten für einen Kraftstoffinjektor
JP6314733B2 (ja) * 2014-08-06 2018-04-25 株式会社デンソー 内燃機関の燃料噴射制御装置
DE102014218626A1 (de) * 2014-09-17 2016-03-17 Continental Automotive Gmbh Ermittlung des Zeitpunkts eines vorbestimmten Öffnungszustandes eines Kraftstoffinjektors
JP6358163B2 (ja) * 2015-04-24 2018-07-18 株式会社デンソー 内燃機関の燃料噴射制御装置
JP6477321B2 (ja) 2015-07-23 2019-03-06 株式会社デンソー 内燃機関の燃料噴射制御装置
US10087866B2 (en) 2015-08-31 2018-10-02 Infineon Technologies Ag Detecting fuel injector timing with current sensing
JP6398930B2 (ja) * 2015-09-24 2018-10-03 株式会社デンソー 噴射制御装置
JP2017061882A (ja) * 2015-09-24 2017-03-30 株式会社デンソー 内燃機関の燃料噴射制御装置
DE102015219673A1 (de) 2015-10-12 2017-04-13 Continental Automotive Gmbh Erkennen eines vorbestimmten Öffnungszustandes eines einen Magnetspulenantrieb aufweisenden Kraftstoffinjektors
WO2018103918A1 (fr) * 2016-12-08 2018-06-14 Robert Bosch Gmbh Procédé et dispositif de test d'une valve électromagnétique à la recherche d'un dysfonctionnement
JP6610571B2 (ja) * 2017-01-20 2019-11-27 トヨタ自動車株式会社 内燃機関の燃料噴射制御装置
DE102017003755B4 (de) 2017-03-10 2019-01-03 Plättner Elektronik GmbH Schaltung zur internen und externen Funktionsprüfung eines elektrischen Relais und /oder Schützes
DE202017002030U1 (de) 2017-03-13 2017-06-29 Plättner Elektronik GmbH Schaltung zur internen und externen Funktionsprüfung eines elektrischen Relais und/oder Schützes
DE102017209523B3 (de) 2017-06-07 2018-06-14 Continental Automotive Gmbh Verfahren zur Ermittlung des in einem Kraftstoffeinspritzventil herrschenden Kraftstoffdruckes
JP7232093B2 (ja) * 2019-03-25 2023-03-02 ルネサスエレクトロニクス株式会社 半導体装置
RU2717952C1 (ru) * 2019-11-26 2020-03-27 Акционерное общество "Корпорация "Московский институт теплотехники" (АО "Корпорация "МИТ") Способ определения положения якоря электромагнита и устройство для его осуществления
RU2747003C1 (ru) * 2020-10-26 2021-04-23 Акционерное общество "Корпорация "Московский институт теплотехники" (АО "Корпорация "МИТ") Способ определения положения якоря электромагнита и устройство для его осуществления

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1806494A2 (fr) * 2005-09-20 2007-07-11 Siemens Aktiengesellschaft Dispositif et méthode pour détecter la fin du déplacement d'un piston dans une valve
EP1806494A3 (fr) * 2005-09-20 2014-05-21 Continental Automotive GmbH Dispositif et méthode pour détecter la fin du déplacement d'un piston dans une valve
WO2008031650A1 (fr) * 2006-09-16 2008-03-20 Continental Aktiengesellschaft Procédé de régulation et/ou de correction de l'assiette de la caisse d'un véhicule à moteur
US8482299B2 (en) 2008-10-31 2013-07-09 Zf Friedrichshafen Ag Method for detecting the position of an armature of an electromagnetic actuator
WO2010049200A1 (fr) * 2008-10-31 2010-05-06 Zf Friedrichshafen Ag Procédé de détermination de la position d'une armature magnétique d'un actionneur électromagnétique
WO2010069779A1 (fr) * 2008-12-19 2010-06-24 Robert Bosch Gmbh Procédé de détermination d'un mouvement d'induit d'une soupape d'injection
WO2010121868A1 (fr) * 2009-04-20 2010-10-28 Robert Bosch Gmbh Procédé permettant de faire fonctionner une soupape d'injection
WO2011003704A1 (fr) * 2009-07-10 2011-01-13 Continental Automotive Gmbh Détermination du moment de fermeture d’une soupape d’injection de carburant en fonction d’une analyse de la tension de commande
US8935114B2 (en) 2009-07-10 2015-01-13 Continental Automotive Gmbh Determining the closing time of a fuel injection valve based on evaluating the actuation voltage
US8955495B2 (en) 2009-12-14 2015-02-17 Robert Bosch Gmbh Method and control unit for operating a valve
WO2011082901A1 (fr) * 2009-12-14 2011-07-14 Robert Bosch Gmbh Procédé et dispositif de commande pour faire fonctionner une soupape
WO2011082902A1 (fr) * 2009-12-14 2011-07-14 Robert Bosch Gmbh Procédé et dispositif de commande pour faire fonctionner une soupape
US9068526B2 (en) 2009-12-14 2015-06-30 Robert Bosch Gmbh Method and control unit for operating a valve
US8884609B2 (en) 2010-05-03 2014-11-11 Continental Automotive Gmbh Circuit arrangement for determining the closing instant of a valve with a coil which actuates an armature
WO2011138241A1 (fr) * 2010-05-03 2011-11-10 Continental Automotive Gmbh Ensemble circuit destiné à la détermination du point de fermeture d'une soupape avec une bobine actionnant un induit
EP2455601A1 (fr) 2010-11-17 2012-05-23 Continental Automotive GmbH Procédé et dispositif de commande d'une soupape d'injection
EP2906877A1 (fr) * 2012-10-09 2015-08-19 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé de surveillance d'une vanne à gaz, commande d'une vanne à gaz, et réchaud au gaz
DE102015220263A1 (de) 2014-10-21 2016-04-21 Denso Corporation Steuervorrichtung
DE102015220263B4 (de) 2014-10-21 2019-07-11 Denso Corporation Steuervorrichtung
EP3937196A3 (fr) * 2020-07-06 2022-01-26 Nabtesco Corporation Appareil d'estimation de position de tiroir, procédé d'estimation de position de tiroir et programme d'estimation de position de tiroir
RU2793305C1 (ru) * 2022-11-24 2023-03-31 Акционерное общество "Корпорация "Московский институт теплотехники" (АО "Корпорация "МИТ") Способ определения положения якоря электромагнита и устройство для его осуществления

Also Published As

Publication number Publication date
US6949923B2 (en) 2005-09-27
EP1302952A3 (fr) 2004-11-10
US20030071613A1 (en) 2003-04-17
EP1302952B1 (fr) 2013-04-24
DE10150199A1 (de) 2003-04-24

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