EP2142967A1 - Système et procédé pour appeler des données caractéristiques - Google Patents

Système et procédé pour appeler des données caractéristiques

Info

Publication number
EP2142967A1
EP2142967A1 EP08715562A EP08715562A EP2142967A1 EP 2142967 A1 EP2142967 A1 EP 2142967A1 EP 08715562 A EP08715562 A EP 08715562A EP 08715562 A EP08715562 A EP 08715562A EP 2142967 A1 EP2142967 A1 EP 2142967A1
Authority
EP
European Patent Office
Prior art keywords
memory unit
actuating element
characteristic data
sub
actuator
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.)
Ceased
Application number
EP08715562A
Other languages
German (de)
English (en)
Inventor
Jens Krallmann
Bernhard Kirsch
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.)
Thomas Magnete GmbH
Original Assignee
Thomas Magnete 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 Thomas Magnete GmbH filed Critical Thomas Magnete GmbH
Publication of EP2142967A1 publication Critical patent/EP2142967A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/408—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31104—Remote configuration of parameters of controlled devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34039—Access central database through internet
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37612—Transfer function, kinematic identification, parameter estimation, response
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41143—Compensation of dynamic characteristic of actuator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45006—Valves

Definitions

  • the invention relates to a system and a method for retrieving characteristic data for at least one actuating element, in particular for compensating systematic transmission errors of individual components of a measuring or timing chain in an electromechanical or electrohydraulic drive system.
  • a compensation of transmission errors is known in the prior art, wherein essentially three strategies are used.
  • the component errors are compensated by additional devices such as rotary potentiometers, balancing resistors, trim transformers, adjusting screws, adjusting bushes, washers, additional masses or similar aids.
  • additional devices such as rotary potentiometers, balancing resistors, trim transformers, adjusting screws, adjusting bushes, washers, additional masses or similar aids.
  • Such compensation can be made during the manufacturing process of the individual components, or alternatively in the context of maintenance or commissioning.
  • This strategy suffers from the disadvantage that the additional devices mentioned are expensive and that a high degree of accuracy with regard to the compensation of the transmission errors can only be achieved by time-consuming trials.
  • the measurement or timing chain is compensated after multiple components have been assembled to a subsystem.
  • the transmission error of the entire subsystem is minimized.
  • the accuracy of error compensation is limited only by the accuracy of modeling. Nevertheless, the influence of the sub-system on the entire measuring or timing chain is not in advance known, so that ultimately a time-consuming testing based on the overall system is required.
  • the compensation of the measurement or control chain is performed by calculation, wherein its transmission error is corrected in the higher-level control unit by means of a mathematical model.
  • the parameters of the model are determined and stored as part of a special commissioning procedure (configuration).
  • Actuator on the basis of the associated specific characteristics, so as to achieve a more accurate operation of the actuator by a compensation of manufacturing tolerances and the like.
  • these are first measured, the product is then labeled in the form of a corresponding actuator with encrypted characteristics.
  • the characteristics are then read out with a scanner before being transmitted to the electronic control circuit.
  • the labeling of the product with the encrypted characteristics, in particular the reading of this data with a scanner is time consuming and laborious and therefore expensive.
  • the electromagnetic actuators are each provided with an integrated control electronics, in which the associated characteristics of the element are stored.
  • control electronics requires its own power supply and increases the cost.
  • DE 195 20 037 A1 describes a method and a structure for controlling a fuel injection device, wherein a power deviation is electronically minimized or even eliminated.
  • Such a method comprises the steps of measuring the resulting characteristics of the device under a variety of operating conditions, such as e.g. Timing and delivery characteristics of the fuel injector, adjusting the control signal as a function of the measured resulting characteristics, such as by setting a base number control and duration or pulse width of a fuel delivery command signal for a fuel injector, and controlling the device in accordance with the set one Control signal to reduce the power deviation.
  • EP 0 868 602 B1 describes an EEPROM technology as data carrier for the performance data of an injection nozzle.
  • a method for providing and retrieving technical data for an electromagnetically actuated fuel injection valve in which a memory unit is provided on the fuel injection valve, in which characteristic data in the form of technical data specifications about the operating behavior of the valve is stored, is described herein. Thereafter, the characteristics are transferred to a vehicle computer which uses these characteristics to advantageously balance differences between fuel injectors and eliminate deviations of the valves from a single centered injection jet.
  • An unambiguous assignment of the storage unit to a respective fuel Injection valve results from the fact that the storage unit is encapsulated in a molded on the fuel injection valve housing.
  • DE 10 2005 001 427 A1 shows a method for correcting the injection behavior of at least one injector having a solenoid valve.
  • information about the at least one injector which was determined by comparing desired values with actual values at individually a plurality of test points of the at least one injector, stored, wherein the at least one injector taking into account the stored information using the stroke of the solenoid valve is controlled as information.
  • DE 10 2004 040 282 A1 describes a parameter identification for field devices in automation technology.
  • the field device behavior is observed and the field device behavior descriptive operating information recorded, which are stored in a first memory area.
  • a manufacturer-independent field device model is stored in a second memory area.
  • the model-specific model parameters associated with the manufacturer-independent field device model are identified, based on the operating information.
  • the operating information is not device-specific data of the field device, which must be entered in it for its parameterization.
  • the field device itself is a passive device that is essentially free of wear.
  • DE 39 31 962 A1 discloses a control electronics for an electrically adjustable actuator. This may be z. B. act on consumer-side valves.
  • the control electronics consists of a microprocessor, a table memory and an amplifier stage for driving said actuator, said components are not spatially separated from each other.
  • DE 10 2005 049 483 A1 discloses an electrical plug and a method for the decentralized storage of the parameters of a sensor.
  • the sensor is a passive element that is substantially free of wear.
  • DE 10 2004 002 686 A1 discloses a system according to the preamble of claim 1 or of claim 12, namely a contactless communication system comprising at least one mobile communication unit comprising a transmitting device and a further unit comprising a receiving device. Between the transmitter and the
  • Receiving device is an exchange of information possible, this information can be stored in the receiving device at least temporarily.
  • the device whose characteristics can be stored it is a passive device, wherein the characteristics z. B. may represent a maintenance code, an error code or an error description of this device.
  • the invention has for its object to provide a system and a method with which at least retrieval of characteristics for at least one actuator in a simple manner and flexibly possible.
  • An inventive system for retrieving characteristic data for at least one actuating element comprises a memory unit for storing characteristic data of the actuating element, wherein in the case of a plurality of actuating elements the respective characteristic data can be assigned to a specific actuating element, and a sub-system for reading out the characteristic data from the memory unit.
  • the actuator, the memory unit and / or the sub-system are each independent and spatially separated. This makes it possible, in particular the memory unit spatially separated from the Actuator and / or provided by the sub-system, wherein a reading of the memory unit by the sub-system by means of suitable data networks, data (remote) transmissions or the like can take place.
  • the characteristic data for a specific actuating element need not be physically connected to the same, but are merely stored in the memory unit, with a corresponding unambiguous assignment to a specific actuating element. In this way, assigning respective characteristic data to a specific actuating element can be carried out more easily and with less effort.
  • the characteristic data for a specific actuating element can be easily reassigned during maintenance of a measuring or timing chain which may have a plurality of such actuating elements.
  • a plurality of characteristic data may also be stored for a specific actuating element, which comprise correction information relating to wear of a respective actuating element. If, for example, characteristic data are available for a certain operating element for a certain number of operating hours, the subsystem can read such characteristic data from the memory unit in order then to control the corresponding actuating element taking into account its wear.
  • This access of the sub-system to the memory unit for reading out the modified characteristic data or the correction information can be done manually according to the specification of an operator, or automatically after a certain period of time or after a certain number of operating hours. This advantageously makes it possible to leave the
  • Actuating element in the measuring or timing chain of the drive system so that can be dispensed with a costly and costly disassembly of the actuator to determine a wear.
  • a timing chain can be formed from an electro-mechanical or an electro-hydraulic drive system.
  • the sub-system may have a control comprise means by which the actuating element can be controlled based on the read-out of the memory unit characteristic data to compensate for transmission errors in a measuring or timing chain.
  • a control comprise means by which the actuating element can be controlled based on the read-out of the memory unit characteristic data to compensate for transmission errors in a measuring or timing chain.
  • an exact and error-free control of a plurality of actuation elements is ensured by the fact that an assignability of the respective measurement data to a specific actuator in a unique manner, for example by means of barcode.
  • the characteristic data of the individual components ie of respective actuators can be uniquely identified in a measuring or timing chain, so that based on this a determination of model parameters of a component model for a computational compensation of systematic transmission errors of the measuring or timing chain is possible.
  • the mathematical compensation has the advantage that no additional devices or procedures to compensate for the individual components are needed.
  • These characteristic data for example the determined model parameters of a component model, can be stored in the memory unit in order to be read out by the subsystem or its control device for actuating the actuating element.
  • access to the memory unit by the sub-system is carried out only after previous successful examination of the access authorization. This can be done by means of an authorization request, so that access by unauthorized subsystems or the like is excluded.
  • subsystems or their control device can be authorized, which are installed together with a corresponding actuator in a drive system, and which can use this data for the computational compensation of transmission errors.
  • the subsystem may be connected to the storage device via remote access. After the actuating element or a plurality of actuators have been provided in their preparation with a unique identification, is by such a remote access a physical connection of characteristic data to a respective associated actuator is not required.
  • the sub-system can obtain access to the memory unit via a data network, wherein the data network can be formed from the Internet. It is particularly advantageous here if the memory unit is formed from a protected area of the Internet. This ensures that the sub-system can read out the characteristic data for the at least one actuating element or for a plurality of actuating elements over a large spatial distance.
  • control device can control these new or exchanged actuators based on the individual associated characteristics, so that transmission errors in the measurement or timing chain are compensated as best as possible.
  • the system may comprise a further second sub-system, with which the characteristics of the at least one actuating element can be measured.
  • a second sub-system is a test bench on which the response and manufacturing tolerances of a respective actuator can be accurately measured.
  • an actuating element for example in the form of a solenoid valve
  • characteristic values are measured for the opening pressure, switching time, flow rate or delivery rate, for which purpose a high degree of accuracy is necessary for trouble-free operation of the drive system.
  • Each actuator is provided in its manufacture and / or at the latest when measuring on the test with a unique identification, so that it also a clear assignment to the measured characteristics for a particular actuator is possible.
  • the sub-system accesses the storage unit manually or automatically after a certain period of time in order to read out this correction information regarding the wear of the at least one operating element. After that, a selected actuator is then driven by the controller of the sub-system based on the correction information to compensate for transmission errors in the measurement or timing chain.
  • the method according to the invention is adapted to the abovementioned system according to the invention, the method working with respect to a remote access of the subsystem to the memory unit, in particular via a data network in the form of the Internet, in the same way as the system.
  • the at least one actuating element can be provided during its production with a unique identification.
  • the provision of the characteristic data can take place by means of a further second sub-system with which the characteristics of the at least one actuating element are measured.
  • the at least one actuating element can be an electromechanical converter, an electrohydraulic converter or a measuring transducer.
  • each of them has a unique identification, so that it is possible to infer the specific characteristic data and even a plurality of sets of characteristic data (for example if a certain number of operating hours are available).
  • the actuator is installed in a drive system, for example in an electromechanical or in an electro-hydraulic drive system.
  • a drive system for example in an electromechanical or in an electro-hydraulic drive system.
  • a misuse in connection with product piracy can be prevented.
  • an exclusive use of the actuators in a measurement or control chain for authorized users is ensured by the latter being notified of the access authorization to the memory unit, so that thereafter reading out of the characteristic data by the sub-system or its control device.
  • valve 1 denotes a production line on which an actuating element is produced.
  • an actuating element may be a proportional pressure-reducing valve or the like.
  • the actuator will hereinafter be referred to only as a valve, without understanding a limitation to such a device.
  • the valve is uniquely identified, for example by a chip, a barcode, a serial number or the like.
  • the valve is mounted on a test stand 2 in order to obtain all the required characteristics, which characterize the transfer behavior of the valve.
  • a measuring operation is shown with respect to the individual valves, wherein the respective characteristics of four different valves A 1 B, C and D are shown.
  • the test stand 2 thus measures the characteristic curves and optionally the necessary correction parameters for various valves AD, from which component parameters for a computational compensation can subsequently be formed. It is understood that the number of four valves shown in the reference numeral is only an example and less or more than four valves may be provided.
  • the measurement of characteristic data of the individual valves on the test stand 2, with the result that the transmission behavior of the valves is determined, is referred to as method step S1.
  • the characteristic data are stored in a memory unit 4 in a method step S2.
  • the unambiguous identification of each valve A-D ensures an unambiguous assignment of the plurality of characteristic data to a specific valve.
  • Timing chain installed in a plant, for example in a motor vehicle 5.
  • a sub-system is provided to read the characteristics from the memory unit 4.
  • Such a sub-system may include a control device 6, which controls the valves A, D on the basis of the read-out of the memory unit 4 characteristic data to compensate for transmission errors in the measuring or timing chain or in the motor vehicle.
  • the reading out of the storage unit 4 takes place in a method step S3, the individual valves being identified in a method step S4 and the respective characteristic data being assigned to a specific valve.
  • a special feature of the invention is that the storage unit 4 is independent and spatially separated both from the test stand 2 and from the motor vehicle 5 and the valves AD. This makes it possible the memory unit 4 read out by the subsystem via a remote access. This can be done by connecting the sub-system to the memory unit 4 via a data network formed, for example, from the Internet.
  • the memory unit 4 may be formed of a protected area of the Internet, which is physically provided, for example, by a data server. Such a data server may for example be provided by the manufacturer of the valves.
  • the characteristic data for the individual valves A-D are transferred to the control device 6.
  • the control device can individually control each individual valve, whereby compensation of systematic transmission errors of the drive system can be achieved by resorting to the correction parameters.
  • the storage unit 4 can also store a plurality of data sets of characteristic data for a respective valve, which records take into account a wear of the valve after a certain number of operating hours.
  • the subsystem or its control device 6 it is possible for the subsystem or its control device 6 to retrieve the memory unit 4 after expiry of a specific number of operating hours for the respective valves AD from a new data record from the memory unit 4, in order to further operate the drive system taking into account the wear of the Perform valves.
  • the test bench can be part of another second sub-system.
  • a system according to the invention comprises the storage unit 4 and the subsystem provided in the motor vehicle 5.
  • the system may also include the second sub-system with the individual system components matched.

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un système servant à appeler des données caractéristiques pour au moins un élément d'actionnement (A, B, C, D). Le système selon l'invention comprend une unité de mémoire (4) pour le stockage de données caractéristiques de l'élément d'actionnement (A-D), des données caractéristiques respectives pouvant être affectées à un élément d'actionnement précis en présence d'une pluralité d'éléments d'actionnement, ainsi qu'un sous-système pour la lecture des données caractéristiques dans l'unité de mémoire. Selon l'invention, l'élément d'actionnement (A-D), l'unité de mémoire (4) et/ou le sous-système sont respectivement indépendants les uns des autres et séparés les uns des autres dans l'espace.
EP08715562A 2007-04-24 2008-03-20 Système et procédé pour appeler des données caractéristiques Ceased EP2142967A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007019618A DE102007019618A1 (de) 2007-04-24 2007-04-24 System und Verfahren zum Abrufen von Kenndaten
PCT/DE2008/000483 WO2008128495A1 (fr) 2007-04-24 2008-03-20 Système et procédé pour appeler des données caractéristiques

Publications (1)

Publication Number Publication Date
EP2142967A1 true EP2142967A1 (fr) 2010-01-13

Family

ID=39629118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08715562A Ceased EP2142967A1 (fr) 2007-04-24 2008-03-20 Système et procédé pour appeler des données caractéristiques

Country Status (3)

Country Link
EP (1) EP2142967A1 (fr)
DE (1) DE102007019618A1 (fr)
WO (1) WO2008128495A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106945A1 (fr) * 2015-06-15 2016-12-21 Tomologic AB Procedé et système de découpage à la machine de matériau en feuille

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294918A2 (fr) * 1987-06-12 1988-12-14 International Control Automation Finance S.A. Systèmes d'asservissement électro-hydrauliques
EP0868602B1 (fr) * 1995-12-22 1999-09-29 Siemens Automotive Corporation Utilisation de la technologie eeprom pour rattacher des donnees relatives aux performances a un injecteur de carburant
EP1376282A2 (fr) * 2002-06-17 2004-01-02 Siemens Aktiengesellschaft Système de contrôle avec surveillance d'actionneur

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DE3931962A1 (de) * 1989-09-25 1991-04-04 Rexroth Mannesmann Gmbh Ansteuerelektronik fuer ein elektrisch verstellbares stellglied
US5634448A (en) 1994-05-31 1997-06-03 Caterpillar Inc. Method and structure for controlling an apparatus, such as a fuel injector, using electronic trimming
US5718767A (en) 1994-10-05 1998-02-17 Nordson Corporation Distributed control system for powder coating system
DE19624743A1 (de) * 1996-06-21 1998-01-08 August Heinr Schmidt Gmbh & Co Verfahren zum Neuzahnen und Nachschärfen von Metallkreissägeblättern
AU2001252091A1 (en) * 2000-05-11 2001-11-20 Mama Technologies Ag Method for controlling and/or monitoring system units, computer network for carrying out this method and computer program product
DE10152765B4 (de) * 2001-07-13 2015-11-12 Siemens Aktiengesellschaft Verfahren zur elektronischen Bereitstellung von Diensten für Maschinen über eine Datenkommunikationsverbindung
DE102004002686A1 (de) * 2003-05-23 2004-12-23 Fnc Gmbh Kontaktloses Kommunikationssystem
DE102004040282A1 (de) * 2004-08-19 2006-03-09 Siemens Ag Parameteridentifikation für Feldgeräte in der Automatisierungstechnik
DE102005001427A1 (de) 2005-01-12 2006-07-20 Robert Bosch Gmbh Verfahren zum Korrigieren des Einspritzverhaltens wenigstens eines ein Magnetventil aufweisenden Injektors
DE102005049483B4 (de) * 2005-10-13 2007-10-18 Ifm Electronic Gmbh Elektrischen Stecker und Verfahren zur dezentralen Speicherung der Parameter eines Sensors

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Publication number Priority date Publication date Assignee Title
EP0294918A2 (fr) * 1987-06-12 1988-12-14 International Control Automation Finance S.A. Systèmes d'asservissement électro-hydrauliques
EP0868602B1 (fr) * 1995-12-22 1999-09-29 Siemens Automotive Corporation Utilisation de la technologie eeprom pour rattacher des donnees relatives aux performances a un injecteur de carburant
EP1376282A2 (fr) * 2002-06-17 2004-01-02 Siemens Aktiengesellschaft Système de contrôle avec surveillance d'actionneur

Non-Patent Citations (1)

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Title
See also references of WO2008128495A1 *

Also Published As

Publication number Publication date
WO2008128495A1 (fr) 2008-10-30
DE102007019618A1 (de) 2008-11-13

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