EP3183455A1 - Verfahren zur steuerung einer hubkolbenpumpe und vorrichtung zur ausführung des verfahrens - Google Patents
Verfahren zur steuerung einer hubkolbenpumpe und vorrichtung zur ausführung des verfahrensInfo
- Publication number
- EP3183455A1 EP3183455A1 EP15759632.1A EP15759632A EP3183455A1 EP 3183455 A1 EP3183455 A1 EP 3183455A1 EP 15759632 A EP15759632 A EP 15759632A EP 3183455 A1 EP3183455 A1 EP 3183455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- magnetic flux
- electromagnet
- voltage
- magnetic
- 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 35
- 230000004907 flux Effects 0.000 claims abstract description 45
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000002123 temporal effect Effects 0.000 claims abstract description 7
- 230000001419 dependent effect Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 230000009021 linear effect Effects 0.000 description 5
- 230000009022 nonlinear effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012067 mathematical method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
- F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/22—Other positive-displacement pumps of reciprocating-piston type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- 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
- H01F7/081—Magnetic constructions
-
- 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
- H01F7/18—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
- H01F7/18—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
- H01F2007/1855—Monitoring or fail-safe circuits using a stored table to deduce one variable from another
Definitions
- the invention relates to a method for controlling a reciprocating pump according to the preamble of the first claim and a
- Electromagnetically powered reciprocating pumps are used to deliver and meter fuel and reagents, are inexpensive to produce and can be operated because of their pulsating operation with adjustable flow rate, when the frequency of the pulses is changed.
- Electromagnetically driven reciprocating pumps consist of an electromagnet and a fluidic displacement unit, in which the working fluid is sucked in, ejected and pressurized. Electromagnet and displacer unit are usually inseparable by common components
- Electromagnet is chosen, is not a rod seal between the
- Electromagnet and the displacer unit required.
- the described energization causes a hard striking the
- Magnetic anchor with correspondingly high noise and a low
- Actuation of a fuel metering pump in which both electrical and fluid state variables are measured and the measured values are used to change the voltage at the electromagnet.
- the document DE 10 2004 002 454 B4 describes a method for
- the document DE 101 27 996 A1 describes a pump device and a control device, in which a measurement of the course of the
- Coil current is closed to the position of the armature and position-dependent, the voltage is switched to decelerate the armature before reaching the end stop.
- Reciprocating pump in particular changes in the supply voltage and the coil temperature, are insufficiently detected and taken into account, and this affects the quality of the control process.
- the estimation method for the magnet armature stroke is not based on a mathematical model of the driving electromagnet, so that only a very rough estimate can be made, especially because of the nonlinear behavior of electromagnets.
- This invention has as its object to describe a control of an electromagnetically driven reciprocating pump by
- Magnetic anchor influenced.
- the position of the armature should not be measured, but measured or calculated from other
- State variables of the electromagnet are determined. Knowledge about essential properties of the electromagnet, in particular non-linear properties, should be determined prior to normal operation and stored in a suitable form in the controller.
- the inventive method is a mathematical model of
- the coil resistance is calculated from the voltage and the coil current.
- the chained magnetic flux of the electromagnet can not be calculated simultaneously from the other state variables, it can only the first time derivative of the concatenated magnetic flux from the
- the concatenated magnetic flux is preferably calculated from an initial value and its temporal first derivative by numerical integration, and with a sufficiently powerful processor, this can be done in real time, that is, during the magnetic lift.
- the stroke of the magnet armature can, however, be taken more precisely and more quickly from a previously determined and stored table in which the stroke of the magnet armature as a function of the coil current and the chained one
- Magnet flux is applied.
- Such a table shows the strong but non-linear dependence of the chained magnetic flux as a function of the coil current from the variable air gap and thus from the magnet lift. While the use of this table is an estimation method and therefore inaccurate, the table takes into account the particular nonlinear properties of the electromagnet used, as recorded for the genus of this electromagnet in measurements on a test rig, and therefore allows a considerably higher
- a further improvement in the estimation of the magnet armature stroke can be achieved by carrying out measurements on a test bench for different effective voltages and both possible directions of the voltage change at the magnet coil, thus creating and using different tables.
- the nonlinear effects of saturation of the flow then flow Iron, magnetic hysteresis and eddy currents in the tables and thus in the estimation method.
- Accuracy can be improved if necessary, if, in the calculation of the interlinked magnetic flux, the premagnetization of the armature and the iron yoke from the history of the time course of the
- the iron yoke consists of the magnetic flux conducting components
- Magnetic pole, housing and yoke, so together with the armature forms an approximately closed magnetic circuit, interrupted only by the air gap between the armature and the magnetic pole.
- the effective voltage at the solenoid for example, by switching on or off or a suitable pulse width modulation or pulse width modulation by the
- Effective voltage is understood to mean the average DC voltage having the same effect as the voltage generated by modulation.
- Coil inductance causes the current to decay only slowly. The current can be measured, and it can be concluded on the interlinked magnetic flux.
- the electrical control increases the effective voltage to a value that causes appropriate deceleration.
- the invention is characterized in that as far as possible existing knowledge about the solenoid is used to make the most accurate estimate of Magnetankerhubs based on the timing of the coil current and the voltage.
- Reciprocating pumps of the type described and their electrical controls are used for conveying and / or metering of fuels and reagents in vehicles and mobile work machines.
- Fig. 1 shows the device consisting of reciprocating pump and electrical control
- the device according to Fiq.1 consists of a reciprocating pump (1) and an electrical control (10), wherein the reciprocating pump from a
- Electromagnet (2) and a by a spring (4) loaded displacer (3) Electromagnet (2) and a by a spring (4) loaded displacer (3).
- the electromagnet is composed of a magnetic coil (5), an iron yoke (6) and a magnet armature (7).
- a power supply (9) provides electrical power to the device, which voltage can vary within a predetermined range, for example between 9V and 16V.
- Switching device (12) connected and in a measuring device (13) the effective voltage and the resulting current are measured.
- the solenoid is powered by the electrical controller (10) with pulsed electrical power, the electrical controller (10) also including a programmable logic processor (11).
- the processor (1 1) calculates • the electrical resistance of the magnetic coil (5) from that of the
- Measuring device (13) measured values of the electrical voltage and the electric current
- the position of the magnet armature (7) is determined.
- the calculation of the interlinked magnetic flux is improved by taking into account in the calculation of the interlinked magnetic flux the premagnetization of the armature (7) and the iron yoke (6) from the history of the time course of the interlinked magnetic flux by means of the initial value.
- a further improvement in the estimation of the position of the armature (7) is achieved by applying different effective voltages and
- Voltage changes to the solenoid coil (5) corresponding previously determined tables for different voltages and voltage changes, each with associated values of the electric current, the chained magnetic flux and the position of the armature (7) are used. Thereby the effects of the non-linearity of the material properties, the magnetic hysteresis and the eddy currents flow into the estimation process.
- the determination of the chained magnetic flux in the electromagnet (2) is preferably carried out in the programmable logic processor (1 1) by a real-time running calculation of the electrical and magnetic state variables of the electromagnet by a numerical integration.
- the current through the magnet coil decays only slowly due to the coil inductance. Also, the current through the magnetic coil of the measuring device (13) is measured and used on the calculation of the interlinked magnetic flux for determining the position of the armature, wherein for the
- Voltage changes pre-calculated table is also included, which also contains the coil current and the chained magnetic flux.
- the information about the position of the armature in the electrical control (10) is used to increase depending on the position of the armature, the effective mean voltage to the solenoid coil (5) and thus to decelerate the movement of the armature.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- Computer Hardware Design (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Control Of Linear Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014012307.3A DE102014012307B3 (de) | 2014-08-19 | 2014-08-19 | Verfahren zur Steuerung einer elektromagnetisch angetriebenen Hubkolbenpumpe und Vorrichtung zur Ausführung des Verfahrens |
PCT/EP2015/001604 WO2016026551A1 (de) | 2014-08-19 | 2015-08-04 | Verfahren zur steuerung einer hubkolbenpumpe und vorrichtung zur ausführung des verfahrens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3183455A1 true EP3183455A1 (de) | 2017-06-28 |
EP3183455B1 EP3183455B1 (de) | 2021-04-21 |
Family
ID=53443417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15759632.1A Active EP3183455B1 (de) | 2014-08-19 | 2015-08-04 | Verfahren zur steuerung einer hubkolbenpumpe und vorrichtung zur ausführung des verfahrens |
Country Status (5)
Country | Link |
---|---|
US (1) | US10670009B2 (de) |
EP (1) | EP3183455B1 (de) |
CN (1) | CN107076129B (de) |
DE (1) | DE102014012307B3 (de) |
WO (1) | WO2016026551A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017200828B4 (de) * | 2017-01-19 | 2018-09-20 | Hochschule Heilbronn | Verfahren und Anordnung zur Bestimmung der Ankerposition eines Elektromagneten |
JP6964039B2 (ja) * | 2018-04-20 | 2021-11-10 | 株式会社荏原製作所 | 電磁石制御装置および電磁石システム |
CN108844747A (zh) * | 2018-05-03 | 2018-11-20 | 上海应用技术大学 | 乘用车门开关耐久性测试系统 |
CN109599247B (zh) * | 2018-12-11 | 2020-11-03 | 大连海事大学 | 一种位移自检测开关电磁铁 |
DE102021003261A1 (de) | 2021-06-25 | 2022-12-29 | Truma Gerätetechnik GmbH & Co. KG | Heizvorrichtung und Verfahren zur Überwachung einer Pumpenvorrichtung |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH549896A (de) * | 1972-09-22 | 1974-05-31 | Landis & Gyr Ag | Schwinganker - kolbenpumpe. |
JPS6131678A (ja) * | 1984-07-25 | 1986-02-14 | Hitachi Ltd | ストロ−ク可変定量ポンプ |
US6208497B1 (en) * | 1997-06-26 | 2001-03-27 | Venture Scientifics, Llc | System and method for servo control of nonlinear electromagnetic actuators |
US6942469B2 (en) * | 1997-06-26 | 2005-09-13 | Crystal Investments, Inc. | Solenoid cassette pump with servo controlled volume detection |
DE19859319A1 (de) * | 1998-12-22 | 2000-06-29 | Eberspaecher J Gmbh & Co | Brennstoffdosierpumpe eines Heizgeräts, insbesondere Wasser- oder Luft-Heizgeräts eines Kraftfahrzeuges, mit Steuergerät |
ATE397802T1 (de) * | 1999-06-21 | 2008-06-15 | Fisher & Paykel Appliances Ltd | Linearmotor |
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 |
DE10127996A1 (de) * | 2001-06-08 | 2002-12-12 | Thomas Magnete Gmbh | Pumpvorrichtung und Regelvorrichtung |
DE102004002454B4 (de) * | 2004-01-16 | 2006-06-29 | J. Eberspächer GmbH & Co. KG | Dosierpumpsystem und Verfahren zum Betreiben einer Dosierpumpe |
DE102011088699B4 (de) * | 2011-12-15 | 2019-07-04 | Robert Bosch Gmbh | Verfahren zum Steuern einer Hubkolbenpumpe |
US9997287B2 (en) * | 2014-06-06 | 2018-06-12 | Synerject Llc | Electromagnetic solenoids having controlled reluctance |
-
2014
- 2014-08-19 DE DE102014012307.3A patent/DE102014012307B3/de active Active
-
2015
- 2015-08-04 CN CN201580044145.4A patent/CN107076129B/zh active Active
- 2015-08-04 WO PCT/EP2015/001604 patent/WO2016026551A1/de active Application Filing
- 2015-08-04 EP EP15759632.1A patent/EP3183455B1/de active Active
- 2015-08-04 US US15/503,258 patent/US10670009B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE102014012307B3 (de) | 2015-07-09 |
US10670009B2 (en) | 2020-06-02 |
US20170241413A1 (en) | 2017-08-24 |
EP3183455B1 (de) | 2021-04-21 |
CN107076129B (zh) | 2019-06-07 |
WO2016026551A1 (de) | 2016-02-25 |
CN107076129A (zh) | 2017-08-18 |
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