EP2340544A1 - Verfahren zur positionserfassung des magnetankers eines elektromagnetischen aktuators - Google Patents
Verfahren zur positionserfassung des magnetankers eines elektromagnetischen aktuatorsInfo
- Publication number
- EP2340544A1 EP2340544A1 EP09782836A EP09782836A EP2340544A1 EP 2340544 A1 EP2340544 A1 EP 2340544A1 EP 09782836 A EP09782836 A EP 09782836A EP 09782836 A EP09782836 A EP 09782836A EP 2340544 A1 EP2340544 A1 EP 2340544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- coils
- armature
- quotient
- coil
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1692—Electromagnets or actuators with two 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
- H01F7/1844—Monitoring or fail-safe circuits
- H01F2007/185—Monitoring or fail-safe circuits with armature position measurement
-
- 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
- H01F7/16—Rectilinearly-movable armatures
Definitions
- both spurs are connected in series and there is a voltage jump on the arrangement, whereby the two coils form a voltage divider according to the known from the measurement Drosselspulenpri ⁇ zip.
- the anchor determines the anchor. For example, if the armature is in the first coil, the voltage in the first coil at the beginning of the step response will be greater than the voltage in the second coil; from the ratio of the voltages to the magnet stroke, it is easy to handle
- the actuator consists of an armature and two coils.
- a third voltage waveform is calculated from these IVfess data in a differential former, from which a logic unit determines the position of the armature slidably mounted between the coils without
- the Wegsig ⁇ a generated in this way depends! strongly depends on the height and on the course of the jump in the jump, which is neither constant nor has the same value in practice due to conduction losses or deviations of the on-board voltage.
- the measured value increases with the value for the time of the measured value acquisition after the voltage jump of temperature effects due to the Qhms component and in a disadvantageous manner.
- C2 is an electromagnetic drive system with iung
- each subsystem forms the stator or the movable barrel, a drive circuit is provided which serves to generate a pulse-width-modulated control voltage with a constant pulse frequency and a constant switching voltage in the coil system.
- the known system comprises a
- Drive windings account for separate measuring systems for determining the position of the moving relative to the fixed subsystem of the drive system
- the present invention is based on the object, starting from the known prior art according to DE 10 2005018012 A1 of the Applicant, a method for detecting the position of the position between two coils.
- a method for detecting the position of the position between two coils Bar arranged Mag ⁇ etankers an electromagnetic actuator specify by its implementation, a voltage independence of the measurement signal for the position of Mag ⁇ etankers is achieved.
- Actuator proposed in the context of which the arrangement by means of a voltage jump is energized suddenly and thematsveriank is measured at the two coils, which is calculated from these measured data for the voltage verungs on both coils a normalized to the height of the voltage jump voltage profile, regardless of voltage
- the quotient of the difference between the two voltage values and the voltage jump normalized to the magnitude of the voltage jump is calculated.
- Each value of the quotient formed according to the invention is assigned an iker stroke, wherein this unambiguous assignment can be determined by calculation, by means of a simulation or by means of tests.
- the assignment of the armature stroke to the quotients formed is in the control as a characteristic or in propose to carry out the measurement of the voltages on both coils at the moment after energization of the actuator, at which the gradient of the voltage curve of the voltages at both coils assumes the value zero, ie at which the courses of the voltages reach the vertex; due to the characteristics of the system, the peak of the voltage transients on both coils is reached at the same time.
- FIG. 1 a simplified schematic diagram of an electronic
- FIG. 1 shows a simplified schematic diagram of an electromagnetic actuator comprising a magnet armature displaceably arranged between two coils.
- the first coil of the actuator with 1 the second coil with 2 and the armature is denoted by 3.
- the ohmic resistances assigned to the spurs are denoted by 4 or 5
- a voltage step U B is applied to the series-connected coils 1, 2 of the actuator for position detection of the magnet armature 3 displaceably arranged between the coils 1, 2, whereby the two coils 1, 2 form a voltage divider according to the Drosselsputenroz known from measurement technology.
- the voltage Ui at the first coil 1 and the voltage U 2 at the second coil 2 are measured according to the invention preferably at a predetermined time t__Mess, from these measured data of the height of the voltage jump Ü B normalized quotient of the difference .DELTA.U between the two Voltage values and the voltage jump U 8 .
- a specific armature stroke is assigned to each value of the quotient formed according to the invention t__Mess at each time t__Mess, wherein these
- Coils assumes the value zero; this time corresponds to the time tJVtess shown in the upper part of FIG. 2; In this figure, the vertex of the voltage drops on both coils 1, 2 is denoted by A. In the lower part of FIG. 2 shows the behavior of the current after the application of the voltage jump UB as a function of the time t.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Linear Motors (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008043340A DE102008043340A1 (de) | 2008-10-31 | 2008-10-31 | Verfahren zur Positionserfassung des Magnetankers eines elektromagnetischen Aktuators |
PCT/EP2009/061715 WO2010049200A1 (de) | 2008-10-31 | 2009-09-10 | Verfahren zur positionserfassung des magnetankers eines elektromagnetischen aktuators |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2340544A1 true EP2340544A1 (de) | 2011-07-06 |
EP2340544B1 EP2340544B1 (de) | 2012-09-05 |
Family
ID=41395971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09782836A Active EP2340544B1 (de) | 2008-10-31 | 2009-09-10 | Verfahren zur positionserfassung des magnetankers eines elektromagnetischen aktuators |
Country Status (4)
Country | Link |
---|---|
US (1) | US8482299B2 (de) |
EP (1) | EP2340544B1 (de) |
DE (1) | DE102008043340A1 (de) |
WO (1) | WO2010049200A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011102629A1 (de) | 2011-05-27 | 2012-11-29 | Volkswagen Aktiengesellschaft | Diagnoseverfahren für Hubmagnete in Lenkungsverriegelungen |
DE102011083007B4 (de) | 2011-09-20 | 2022-12-01 | Zf Friedrichshafen Ag | Verfahren und Ansteuervorrichtung zum Ansteuern eines elektromagnetischen Aktuators |
DE102012204321A1 (de) | 2012-03-19 | 2013-09-19 | Zf Friedrichshafen Ag | Elektromagnetische Stellvorrichtung mit Eignung zur Ankerpositionserfassung |
WO2013169716A1 (en) | 2012-05-07 | 2013-11-14 | S&C Electric Company | Dropout recloser |
DE102013200698A1 (de) | 2013-01-18 | 2014-07-24 | Zf Friedrichshafen Ag | Spulenanordnung mit zwei Spulen |
DE102017100515A1 (de) * | 2017-01-12 | 2018-07-12 | Rolf Strothmann | Verfahren zur Bestimmung der Drehwinkelposition des Rotors einer mehrphasigen elektrischen Maschine |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU506963A1 (ru) * | 1973-07-26 | 1976-08-25 | Всесоюзный Научно-Исследовательский И Испытательный Институт Медицинской Техники Министерства Здравоохранения Ссср | Хирургический сшивающий аппарат |
DD221006A1 (de) * | 1983-12-06 | 1985-04-10 | Univ Berlin Humboldt | Weg-spannungswandler |
DE3668495D1 (de) * | 1986-08-28 | 1990-03-01 | Vickers Systems Gmbh | Verfahren zur induktiven wegmessung und wegsensor. |
US5481187A (en) | 1991-11-29 | 1996-01-02 | Caterpillar Inc. | Method and apparatus for determining the position of an armature in an electromagnetic actuator |
DE29703587U1 (de) * | 1997-02-28 | 1998-06-25 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektromagnetischer Aktuator mit Näherungssensor |
DE19748647C2 (de) | 1997-11-04 | 2001-09-27 | Festo Ag & Co | Elektromagnetisches Antriebssystem mit integrierter Wegsignalerzeugung |
DE29814211U1 (de) * | 1998-08-12 | 1998-10-15 | Siemens AG, 80333 München | Anordnung zur Ermittlung der Position einer sich im wesentlichen linear bewegenden Einrichtung sowie Ventileinrichtung eines Verbrennungsmotors mit einer solchen Anordnung |
US6605940B1 (en) * | 2000-04-12 | 2003-08-12 | Kavlico Corporation | Linear variable differential transformer assembly with nulling adjustment and process for nulling adjustment |
DE10020896A1 (de) | 2000-04-29 | 2001-10-31 | Lsp Innovative Automotive Sys | Verfahren zur Bestimmung der Position eines Ankers/ eines Ventils |
DE10033923A1 (de) * | 2000-07-12 | 2002-01-24 | Lsp Innovative Automotive Sys | Verfahren zur sensorlosen Ermittlung der Geschwindigkeit und Position elektromagnetischer Stellsysteme |
DE10034830C2 (de) * | 2000-07-18 | 2003-02-27 | Isermann Rolf | Verfahren zur Rekonstruktion der Ankerbewegung eines elektromagnetischen Aktors |
DE10150199A1 (de) | 2001-10-12 | 2003-04-24 | Wolfgang E Schultz | Verfahren und Schaltung zur Erkennung der Ankerlage eines Elektromagneten |
US6870454B1 (en) * | 2003-09-08 | 2005-03-22 | Com Dev Ltd. | Linear switch actuator |
DE102005007265A1 (de) * | 2004-09-21 | 2006-04-06 | Micro-Epsilon Messtechnik Gmbh & Co Kg | Vorrichtung und Verfahren zur Erfassung der Position und der Geschwindigkeit eines Messobjekts |
DE102005018012A1 (de) * | 2005-04-18 | 2006-10-19 | Zf Friedrichshafen Ag | Sensorlose Positionserkennung in einem elektromagnetischen Aktuator |
-
2008
- 2008-10-31 DE DE102008043340A patent/DE102008043340A1/de not_active Withdrawn
-
2009
- 2009-09-10 EP EP09782836A patent/EP2340544B1/de active Active
- 2009-09-10 US US13/123,736 patent/US8482299B2/en not_active Expired - Fee Related
- 2009-09-10 WO PCT/EP2009/061715 patent/WO2010049200A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010049200A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8482299B2 (en) | 2013-07-09 |
EP2340544B1 (de) | 2012-09-05 |
US20110221451A1 (en) | 2011-09-15 |
WO2010049200A1 (de) | 2010-05-06 |
DE102008043340A1 (de) | 2010-05-06 |
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