EP1365159A2 - Electrical means for controlling a multiway valve with wear condition diagnosis - Google Patents

Electrical means for controlling a multiway valve with wear condition diagnosis Download PDF

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Publication number
EP1365159A2
EP1365159A2 EP03101417A EP03101417A EP1365159A2 EP 1365159 A2 EP1365159 A2 EP 1365159A2 EP 03101417 A EP03101417 A EP 03101417A EP 03101417 A EP03101417 A EP 03101417A EP 1365159 A2 EP1365159 A2 EP 1365159A2
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EP
European Patent Office
Prior art keywords
way valve
electrical
wear
valve
electrical device
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Granted
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EP03101417A
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German (de)
French (fr)
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EP1365159B1 (en
EP1365159A3 (en
Inventor
Albert Dipl-Ing Gerhard
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Bosch Rexroth AG
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Bosch Rexroth AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/005—Fault detection or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves

Definitions

  • the invention relates to an electrical device for controlling a Multi-way valve for switching a pressure medium flow between at least two outer ones Connections (P, A) by means of an integrated switching mechanism, which via electrical Control signals can be actuated.
  • the present invention also relates to a pneumatic multi-way valve and a pneumatic valve unit, which with a such electrical equipment are equipped and a corresponding method for Control.
  • the pneumatic program from Bosch is a pneumatic multi-way valve, which over a generic electrical device is controlled.
  • the multi-way valve has at least one multi-pole electrical connection, which is assigned to a pilot valve.
  • the pilot valve is attached on the front side to the valve housing of the multi-way valve and is used for Applying pilot pressure to a pilot control.
  • This Since this is a 5/2-way valve, it has Multi-way valve a total of five external connections, one of which is for the Feed pressure supply (P) is provided. Two other connections serve as Working connections (A, B) and the remaining two connections are for ventilation (R, S) provided.
  • the integrated switching mechanism can be both spring reset and active be driven bidirectionally. In the former case, there is only a single pilot valve required; for active directional drive, on the other hand, is on each face of the Multi-way valve provided a pilot valve.
  • the electrical control signals for the pilot valve or pilot valves from one parent control unit generated from.
  • the higher-level control unit coordinates the Actions of all multi-way valves and other active components of a pneumatic System.
  • the invention is also applicable to other multi-way valves, for example pressure control valves, which are usually constructed in the manner of a seat valve, and like.
  • the invention includes the facility engineering teaching that an electronics unit is provided, which has the electrical control signal for the multi-way valve on the input side and an electrical response signal following a drive pulse is received, from which the Electronic unit determines the time interval between the two signals by comparison, from this to the switching delay as a measure of the state of wear of the switching mechanism determine.
  • the advantage of the invention is, in particular, that the control of a Multi-way valve electronics required anyway by an electronics unit with the Function according to the invention can be enriched in a simple manner. This is with one low additional component expenditure can be represented.
  • the invention is based on the knowledge that an extension of the switching time of a multi-way valve over its entire Operating time is directly related to its state of wear. Consequently enables the invention via timely detection of undesirable long switching times a targeted exchange of multi-way valves or their wear parts, which in would fail in the foreseeable future. This is preventive maintenance of pneumatic systems ge Congressrleistbar.
  • a pressure sensor is provided which in Multi-way valve is integrated and electrically connected to the electronics unit. Equipping a conventional multi-way valve with a pressure sensor requires only a small additional manufacturing effort. With pressure control valves a pressure sensor is already integrated on the working line anyway, which for the Wear state identifier according to the invention can also be used.
  • the arrangement of the pressure sensor can preferably be in the area of a work connection respectively.
  • the reaction signal arises from the increase in the working pressure at Switching the multi-way valve.
  • the reaction signal arises from the drop in supply pressure when switching the multi-way valve.
  • the Arrangement of the pressure sensor in the area of the feed pressure connection is particularly suitable to equip an entire valve unit with wear condition detection, since here a only pressure sensor is sufficient, which in the central supply pressure supply of the Valve unit is to be integrated. Because this reaction signal therefore for all multi-way valves applies, but the electrical control signal for each multi-way valve of the valve unit individually is present, the state of wear of each individual can also be combined Determine valve unit located multi-way valve by comparison.
  • the electronics unit is like this designed that the determined via the control signal and the reaction signal Switching delay with a stored setpoint for a permissible switching delay is compared in order to define a wear limit, which is a maintenance or a Exchange of the multi-way valve indicated.
  • the wear limit and / or the state of wear of the multi-way valve is preferably by means of an output unit downstream of the electronics unit Brought ad.
  • a simple output unit is suitable, for example Illuminated display, the lighting of which indicates the wear limit.
  • the current state of wear can be evaluated via a computer-aided diagnosis, for what purpose for example a diagnostic connector of a computer with the higher-level control unit of a pneumatic system can be connected.
  • FIG. 1 shows a schematic representation in the form of a block diagram of an electrical device for the control of a multi-way valve.
  • the multi-way valve 1 fulfills the function of a 2/2-way valve in this exemplary embodiment and is with a corresponding integrated switching mechanism 2 in the form of a Valve spool arrangement equipped.
  • the switching mechanism 2 controls the flow of Compressed air from a supply pressure port P to a working port A.
  • In the Open position of the multi-way valve 1 shown reaches compressed air unhindered by Feed pressure port P to the working port A.
  • In the other - not shown here - Switch position is the compressed air flow between the feed pressure port P and the Working port A blocked.
  • the compressed air flow is switched via an axial drive of the switching mechanism 2 by means of a pilot valve 3, which, in the manner of a pilot control, starts from a an electrical control signal 4 on the input side has a corresponding control pressure generated.
  • the electrical control signal 4 for the multi-way valve 1 is from one - here not shown - superordinate control unit.
  • an electronic unit 5 provided which receives the electrical control signal 4 on the input side. Likewise On the input side, the electronic unit 5 receives an electrical reaction signal 6, which is obtained via a pressure sensor 7.
  • the pressure sensor 7 is in this Embodiment arranged in the area of the working port A of the multi-way valve 1 and registers an increase in working pressure in response to an electrical drive signal 4 am Pilot valve 3. Alternatively, there is also an arrangement of a pressure sensor 7a-like indicated - possible in the area of the feed pressure port P.
  • the electronics unit 5 determined by comparison the time interval between the control signal 4 and the Response signal 6 to derive the switching delay of the multi-way valve 1 as a measure of To determine the state of wear of the integrated switching mechanism 2.
  • One out of this obtained signal which indicates the current state of wear, becomes one of the Electronics unit 5 provided downstream output unit 8.
  • the Output unit 8 visually displays the current state of wear.
  • the present invention is not limited to the preferred one described above Embodiment. Rather, modifications of this are also conceivable, which ones are also included in the scope of the claims. So the invention is not alone in a multi-way valve 1 applicable, which is in the manner of a pilot operated slide valve is formed, such as in a driven by a proportional magnet Pressure control valve. Furthermore, the arrangement of a pressure sensor 7 for detecting the electrical response signal 6 not to the two only given here preferably Places within the multi-way valve 1 limited. The pressure sensors 7 can also be placed outside the multi-way valve 1 in a suitable manner, if this results in Comparison with the electrical control signal 4 a useful value for the Switching delay wins.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Fluid-Driven Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Lift Valve (AREA)

Abstract

The device has an electronic unit (5) that receives the electrical drive signal (4) and a reaction signal (6) following a drive pulse and determines the time interval between the signals to determine the switching delay as a measure of the state of wear of a switching mechanism (2). The reaction signal is determined with a pressure sensor integrated into the multi-way valve and electrically connected to the electronic unit. Independent claims are also included for the following: (a) a pneumatic multi-way valve with an inventive electrical device (b) a pneumatic valve unit with several multi-way valves (c) and a method of driving a multi-way valve with an electrical drive signal.

Description

Die Erfindung betrifft eine elektrische Einrichtung für die Ansteuerung eines Mehrwegeventils zum Schalten eines Druckmittelflusses zwischen mindestens zwei äußeren Anschlüssen (P, A) mittels einer integrierten Schaltmechanik, die über elektrische Ansteuersignale betätigbar ist. Die vorliegende Erfmdung betrifft weiterhin auch ein pneumatisches Mehrwegeventil sowie eine pneumatische Ventileinheit, welche mit einer solchen elektrischen Einrichtung ausgestattet sind sowie ein entsprechendes Verfahren zur Ansteuerung. The invention relates to an electrical device for controlling a Multi-way valve for switching a pressure medium flow between at least two outer ones Connections (P, A) by means of an integrated switching mechanism, which via electrical Control signals can be actuated. The present invention also relates to a pneumatic multi-way valve and a pneumatic valve unit, which with a such electrical equipment are equipped and a corresponding method for Control.

Aus dem Produktkatalog "Das Pneumatik-Programm von Bosch" (Ausgabe 15.31, Seite 5.52) geht ein pneumatisches Mehrwegeventil hervor, welches über eine gattungsgemäße elektrische Einrichtung angesteuert wird. Hierzu weist das Mehrwegeventil mindestens einen mehrpoligen elektrischen Anschluss auf, der einem Pilotventil zugeordnet ist. Das Pilotventil ist stimseitig am Ventilgehäuse des Mehrwegeventils angebracht und dient der Beaufschlagung einer Vorsteuerung mit einem Steuerdruck. Über die Vorsteuerung wird die hier als Ventilschieber ausgeführte integrierte Schaltmechanik axial verstellt. Durch die axiale Verstellung werden die äußeren Anschlüsse des Mehrwegeventils druckmittelvermittelnd miteinander verbunden. Da es sich hier um ein 5/2-Wegeventil handelt, besitzt das Mehrwegeventil insgesamt fünf äußere Anschlüsse, von denen ein Anschluss für die Speisedruckversorgung (P) vorgesehen ist. Zwei weitere Anschlüsse dienen als Arbeitsanschlüsse (A, B) und die verbleibenden zwei Anschlüsse sind für die Entlüftung (R, S) vorgesehen. Die integrierte Schaltmechanik kann sowohl federrückgestellt als auch aktiv bidirektional angetrieben werden. Ersterenfalls ist lediglich ein einziges Pilotventil erforderlich; zum aktiven direktionalen Antrieb ist dagegen an jeder Stirnseite des Mehrwegeventils ein Pilotventil vorgesehen.From the product catalog "The pneumatic program from Bosch" (Issue 15.31, page 5.52) is a pneumatic multi-way valve, which over a generic electrical device is controlled. For this purpose, the multi-way valve has at least one multi-pole electrical connection, which is assigned to a pilot valve. The pilot valve is attached on the front side to the valve housing of the multi-way valve and is used for Applying pilot pressure to a pilot control. Via the feedforward control Integrated switching mechanism designed here as a valve slide axially adjusted. By the axial The adjustment of the external connections of the multi-way valve provides pressure medium connected with each other. Since this is a 5/2-way valve, it has Multi-way valve a total of five external connections, one of which is for the Feed pressure supply (P) is provided. Two other connections serve as Working connections (A, B) and the remaining two connections are for ventilation (R, S) provided. The integrated switching mechanism can be both spring reset and active be driven bidirectionally. In the former case, there is only a single pilot valve required; for active directional drive, on the other hand, is on each face of the Multi-way valve provided a pilot valve.

Gewöhnlich werden die elektrischen Ansteuersignale für das bzw. die Pilotventile von einer übergeordneten Steuereinheit aus generiert. Die übergeordnete Steuereinheit koordiniert die Aktionen aller Mehrwegeventile und sonstigen aktiven Bestandteile eines pneumatischen Systems.Usually, the electrical control signals for the pilot valve or pilot valves from one parent control unit generated from. The higher-level control unit coordinates the Actions of all multi-way valves and other active components of a pneumatic System.

Neben dem vorstehend beschriebenen Mehrwegeventil, welches als Schieberventil ausgebildet ist, ist die Erfindung auch auf andere Mehrwegeventile anwendbar, beispielsweise auf Druckregelventile, welche üblicherweise nach Art eines Sitzventils aufgebaut sind, und dergleichen. In addition to the multi-way valve described above, which as a slide valve is formed, the invention is also applicable to other multi-way valves, for example pressure control valves, which are usually constructed in the manner of a seat valve, and like.

Beim Einsatz eines Mehrwegeventils als Bestandteil eines pneumatischen Systems, beispielsweise auf dem Gebiet der Handhabungstechnik als Werkstückzuführroboter für Werkzeugmaschinen, tritt das Problem auf, dass bei Ausfall eines Mehrwegeventils das gesamte pneumatische System ausfallen kann, was zu Ausfallzeiten in der Fertigungslinie führt. Ausfallgefährdet bei einem pneumatischen System sind vor allem die Mehrwegeventile, da diese einer besonders hohen mechanischen Wechselbeanspruchung im Betrieb ausgesetzt sind.When using a multi-way valve as part of a pneumatic system, for example in the field of handling technology as a workpiece feed robot for Machine tools, the problem arises that if a multi-way valve fails, the Entire pneumatic system can fail, resulting in downtime on the production line leads. With a pneumatic system, the multi-way valves, since these are exposed to a particularly high mechanical alternating stress during operation are.

Um dieses Problem zu beherrschen war es bisher üblich, entweder einen defekten Bestandteil eines pneumatischen Systems erst auszutauschen, nachdem dieses defekt ist; zum anderen wurde vereinzelt ein vorsorglicher Austausch nach Ablauf der geschätzten Standzeit des Mehrwegeventils vorgenommen. Bei der letztgenannten Methode erfolgte der Austausch oftmals bereits weit vor der tatsächlichen Verschleißgrenze, da wegen der Variationsbreite große Abweichungen zwischen der geschätzten Standzeit und der tatsächlichen Standzeit auftreten.In order to master this problem, it has so far been customary to either use a defective component to replace a pneumatic system only after it is defective; on the other hand was a preventive exchange after the estimated service life of the Multi-way valve made. In the latter method, the exchange took place often well before the actual wear limit because of the range of variation large deviations between the estimated service life and the actual service life occur.

Neben dieser Ausfallproblematik von Mehrwegeventilen kann es bei einem pneumatischen System infolge fortschreitenden Verschleißes auch zu einem sich stetig verlangsamenderen Schalten des Mehrwegeventils kommen, was unzulässige Zustände im pneumatischen System herbeiführen kann.In addition to this failure problem of multi-way valves, there can also be a pneumatic System due to progressive wear and tear to a steadily slowing down Switching of the multi-way valve come, which impermissible conditions in the pneumatic system can bring about.

Es ist daher die Aufgabe der vorliegenden Erfindung ein Mehrwegeventil der vorstehend beschriebenen Art dahingehend weiter zu verbessern, dass über einfache Mittel eine Ermittlung des tatsächlichen Verschleißzustandes möglich ist.It is therefore the object of the present invention a multi-way valve of the above described way to further improve that a simple means Determining the actual state of wear is possible.

Die Aufgabe wird hinsichtlich einer elektrischen Einrichtung für die Ansteuerung eines Mehrwegeventils mit den Merkmalen des Anspruchs 1 gelöst. Hinsichtlich eines pneumatischen Mehrwegeventils selbst und einer hieraus aufgebauten pneumatischen Ventileinheit wird die Aufgabe mit den Ansprüchen 9 bzw. 10 gelöst. Verfahrenstechnisch wird die Aufgabe mit den Merkmalen des Anspruchs 11 gelöst. Die jeweils rückbezogenen abhängigen Ansprüche geben vorteilhafte Weiterbildungen der Erfindung wieder.The task is with regard to an electrical device for the control of a Multi-way valve with the features of claim 1 solved. Regarding one pneumatic multi-way valve itself and a pneumatic valve built from it Valve unit the problem is solved with claims 9 and 10, respectively. process engineering the object is achieved with the features of claim 11. The back related dependent claims reflect advantageous developments of the invention.

Die Erfindung schließt die einrichtungstechnische Lehre ein, dass eine Elektronikeinheit vorgesehen ist, welcher eingangsseitig das elektrische Ansteuersignal für das Mehrwegeventil und ein auf einen Ansteuerimpuls folgendes elektrisches Reaktionssignal zugeht, woraus die Elektronikeinheit durch Vergleich den zeitlichen Abstand zwischen beiden Signalen ermittelt, um hieraus die Schaltverzögerung als Maß des Verschleißzustandes der Schaltmechanik zu bestimmen.The invention includes the facility engineering teaching that an electronics unit is provided, which has the electrical control signal for the multi-way valve on the input side and an electrical response signal following a drive pulse is received, from which the Electronic unit determines the time interval between the two signals by comparison, from this to the switching delay as a measure of the state of wear of the switching mechanism determine.

Der Vorteil der Erfindung liegt insbesondere darin, dass die zur Ansteuerung eines Mehrwegeventils ohnehin benötigte Elektronik um eine Elektronikeinheit mit der erfindungsgemäßen Funktion in einfacher Weise bereichert werden kann. Dieses ist mit einem geringen zusätzlichen Bauteileaufwand darstellbar. Die Erfmdung basiert auf der Erkenntnis, dass eine Verlängerung der Schaltzeit eines Mehrwegeventils über dessen gesamte Betriebszeit im direkten Zusammenhang mit dessen Verschleißzustand steht. Somit ermöglicht die Erfindung über eine rechtzeitige Erkennung unerwünscht langer Schaltzeiten einen gezielten Austausch von Mehrwegeventilen oder deren Verschleißteile, welche in absehbarer Zeit ausfallen würden. Damit ist eine präventive Wartung pneumatischer Systeme gewährleistbar.The advantage of the invention is, in particular, that the control of a Multi-way valve electronics required anyway by an electronics unit with the Function according to the invention can be enriched in a simple manner. This is with one low additional component expenditure can be represented. The invention is based on the knowledge that an extension of the switching time of a multi-way valve over its entire Operating time is directly related to its state of wear. Consequently enables the invention via timely detection of undesirable long switching times a targeted exchange of multi-way valves or their wear parts, which in would fail in the foreseeable future. This is preventive maintenance of pneumatic systems gewährleistbar.

Vorzugsweise ist zur Erzeugung des elektrischen Reaktionssignals, welches für den Vergleich mit dem elektrischen Ansteuersignal benötigt wird, ein Drucksensor vorgesehen, der im Mehrwegeventil integriert ist und elektrisch mit der Elektronikeinheit in Verbindung steht. Die Ausrüstung eines herkömmlichen Mehrwegeventils mit einem Drucksensor erfordert einen nur geringen zusätzlichen Herstellungsaufwand. Bei Druckregelventilen ist arbeitsleitungsseitig ohnehin ein Drucksensor bereits integriert, welcher für die erfindungsgemäße Verschleißzustandskennung mit benutzt werden kann.Preferably for generating the electrical reaction signal, which is used for the comparison with the electrical control signal is required, a pressure sensor is provided which in Multi-way valve is integrated and electrically connected to the electronics unit. Equipping a conventional multi-way valve with a pressure sensor requires only a small additional manufacturing effort. With pressure control valves a pressure sensor is already integrated on the working line anyway, which for the Wear state identifier according to the invention can also be used.

Die Anordnung des Drucksensors kann bevorzugt im Bereich eines Arbeitsanschlusses erfolgen. Das Reaktionssignal entsteht dabei durch den Anstieg des Arbeitsdrucks beim Schalten des Mehrwegeventils. Alternativ hierzu ist es auch möglich, den Drucksensor im Bereich des Speisedruckanschlusses des Mehrwegeventils anzuordnen. Das Reaktionssignal entsteht hierbei durch den Speisedruckabfall beim Schalten des Mehrwegeventils. Die Anordnung des Drucksensors im Bereich des Speisedruckanschlusses ist besonders geeignet zur Ausrüstung einer ganzen Ventileinheit mit der Verschleißzustandserkennung, da hier ein einziger Drucksensor ausreicht, welcher in die zentrale Speisedruckversorgung der Ventileinheit zu integrieren ist. Weil dieses Reaktionssignal somit für alle Mehrwegeventile gilt, aber das elektrische Ansteuersignal für jedes Mehrwegeventil der Ventileinheit einzeln vorliegt, lässt sich auch der Verschleißzustand jedes einzelnen sich im Verbund einer Ventileinheit befindlichen Mehrwegeventils durch den Vergleich ermitteln.The arrangement of the pressure sensor can preferably be in the area of a work connection respectively. The reaction signal arises from the increase in the working pressure at Switching the multi-way valve. Alternatively, it is also possible to install the pressure sensor in the To arrange the area of the feed pressure connection of the multi-way valve. The reaction signal arises from the drop in supply pressure when switching the multi-way valve. The Arrangement of the pressure sensor in the area of the feed pressure connection is particularly suitable to equip an entire valve unit with wear condition detection, since here a only pressure sensor is sufficient, which in the central supply pressure supply of the Valve unit is to be integrated. Because this reaction signal therefore for all multi-way valves applies, but the electrical control signal for each multi-way valve of the valve unit individually is present, the state of wear of each individual can also be combined Determine valve unit located multi-way valve by comparison.

Gemäß einer weiteren, die Erfindung verbessernden Maßnahme ist die Elektronikeinheit so ausgelegt, dass die über das Ansteuersignal und das Reaktionssignal ermittelte Schaltverzögerung mit einem hinterlegten Sollwert für eine zulässige Schaltverzögerung verglichen wird, um hierüber eine Verschleißgrenze zu definieren, die eine Wartung oder ein Austausch des Mehrwegeventils indiziert.According to a further measure improving the invention, the electronics unit is like this designed that the determined via the control signal and the reaction signal Switching delay with a stored setpoint for a permissible switching delay is compared in order to define a wear limit, which is a maintenance or a Exchange of the multi-way valve indicated.

Die Verschleißgrenze und/oder der Verschleißzustand des Mehrwegeventils wird vorzugsweise mittels einer der Elektronikeinheit nachgeschalteten Ausgabeeinheit zur Anzeige gebracht. Als Ausgabeeinheit eignet sich beispielsweise eine einfache Leuchtanzeige, deren Aufleuchten die Verschleißgrenze anzeigt. Es ist jedoch auch denkbar, dass der aktuelle Verschleißzustand über eine rechnergestützte Diagnose auswertbar ist, wozu beispielsweise ein Diagnosestecker eines Rechners mit der übergeordneten Steuereinheit eines pneumatischen Systems verbunden werden kann.The wear limit and / or the state of wear of the multi-way valve is preferably by means of an output unit downstream of the electronics unit Brought ad. A simple output unit is suitable, for example Illuminated display, the lighting of which indicates the wear limit. However, it is also conceivable that the current state of wear can be evaluated via a computer-aided diagnosis, for what purpose for example a diagnostic connector of a computer with the higher-level control unit of a pneumatic system can be connected.

Weitere die Erfindung verbessernde Maßnahmen gehen aus den abhängigen Ansprüchen hervor oder werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausrührungsbeispiels der Erfindung anhand der einzigen Figur dargestellt. Die Figur zeigt eine schematische Darstellung in Form eines Blockschaltbildes einer elektrischen Einrichtung für die Ansteuerung eines Mehrwegeventils.Further measures improving the invention result from the dependent claims or will be described below together with the description of a preferred one Ausrührungsbeispiels the invention with reference to the single figure. The figure shows a schematic representation in the form of a block diagram of an electrical device for the control of a multi-way valve.

Das Mehrwegeventil 1 erfüllt in diesem Ausführungsbeispiel die Funktion eines 2/2-Wegeventils und ist mit einer entsprechenden integrierten Schaltmechanik 2 in Form einer Ventilschieberanordnung ausgestattet. Die Schaltmechanik 2 steuert den Durchfluss von Druckluft von einem Speisedruckanschluss P zu einem Arbeitsanschluss A hin. In der gezeigten Offenstellung des Mehrwegeventils 1 gelangt Druckluft ungehindert vom Speisedruckanschluss P zum Arbeitsanschluss A. In der anderen - hier nicht gezeigten - Schaltstellung ist der Druckluftfluss zwischen dem Speisedruckanschluss P und dem Arbeitsanschluss A gesperrt.The multi-way valve 1 fulfills the function of a 2/2-way valve in this exemplary embodiment and is with a corresponding integrated switching mechanism 2 in the form of a Valve spool arrangement equipped. The switching mechanism 2 controls the flow of Compressed air from a supply pressure port P to a working port A. In the Open position of the multi-way valve 1 shown reaches compressed air unhindered by Feed pressure port P to the working port A. In the other - not shown here - Switch position is the compressed air flow between the feed pressure port P and the Working port A blocked.

Das Schalten des Druckluftflusses erfolgt über einen axialen Antrieb der Schaltmechanik 2 mittels eines Vorsteuerventils 3, welches nach Art einer Vorsteuerung ausgehend von einem eingangsseitig zugeführten elektrischen Ansteuersignal 4 einen entsprechenden Steuerdruck generiert. Das elektrische Ansteuersignal 4 für das Mehrwegeventil 1 wird von einer - hier nicht weiter dargestellten - übergeordneten Steuereinheit abgegeben.The compressed air flow is switched via an axial drive of the switching mechanism 2 by means of a pilot valve 3, which, in the manner of a pilot control, starts from a an electrical control signal 4 on the input side has a corresponding control pressure generated. The electrical control signal 4 for the multi-way valve 1 is from one - here not shown - superordinate control unit.

Um den Verschleißzustand der Schaltmechanik 2 zu überwachen, ist eine Elektronikeinheit 5 vorgesehen, welcher eingangsseitig das elektrische Ansteuersignal 4 zugeht. Ebenfalls eingangsseitig geht der Elektronikeinheit 5 ein elektrisches Reaktionssignal 6 zu, welches über einen Drucksensor 7 gewonnen wird. Der Drucksensor 7 ist in diesem Ausführungsbeispiel im Bereich des Arbeitsanschlusses A des Mehrwegeventils 1 angeordnet und registriert einen Arbeitsdruckanstieg in Reaktion auf ein elektrisches Ansteuersignal 4 am Vorsteuerventil 3. Alternativ hierzu ist auch eine Anordnung eines Drucksensors 7a - wie angedeutet - im Bereich des Speisedruckanschlusses P möglich. Die Elektronikeinheit 5 ermittelt durch Vergleich den zeitlichen Abstand zwischen dem Ansteuersignal 4 und dem Reaktionssignal 6, um hieraus die Schaltverzögerung des Mehrwegeventils 1 als Maß des Verschleißzustandes der integrierten Schaltmechanik 2 zu bestimmen. Ein hieraus gewonnenes Signal, welches den aktuellen Verschleißzustand kennzeichnet, wird einer der Elektronikeinheit 5 nachgeschalteten Ausgabeeinheit 8 zur Verfügung gestellt. Die Ausgabeeinheit 8 bringt den aktuellen Verschleißzustand optisch zur Anzeige.In order to monitor the state of wear of the switching mechanism 2, an electronic unit 5 provided which receives the electrical control signal 4 on the input side. Likewise On the input side, the electronic unit 5 receives an electrical reaction signal 6, which is obtained via a pressure sensor 7. The pressure sensor 7 is in this Embodiment arranged in the area of the working port A of the multi-way valve 1 and registers an increase in working pressure in response to an electrical drive signal 4 am Pilot valve 3. Alternatively, there is also an arrangement of a pressure sensor 7a-like indicated - possible in the area of the feed pressure port P. The electronics unit 5 determined by comparison the time interval between the control signal 4 and the Response signal 6 to derive the switching delay of the multi-way valve 1 as a measure of To determine the state of wear of the integrated switching mechanism 2. One out of this obtained signal, which indicates the current state of wear, becomes one of the Electronics unit 5 provided downstream output unit 8. The Output unit 8 visually displays the current state of wear.

Die vorliegende Erfindung ist nicht beschränkt auf das vorstehend beschriebene bevorzugte Ausführungsbeispiel. Es sind vielmehr auch Abwandlungen hiervon denkbar, welche ebenfalls vom Schutzbereich der Ansprüche umfasst sind. So ist die Erfindung nicht allein bei einem Mehrwegeventil 1 anwendbar, welches nach Art eines vorgesteuerten Schieberventils ausgebildet ist, wie beispielsweise bei einem über einen Proportionalmagneten angetriebenen Druckregelventil. Ferner ist die Anordnung eines Drucksensors 7 zur Erfassung des elektrischen Reaktionssignals 6 nicht auf die beiden hier nur vorzugsweise angegebenen Stellen innerhalb des Mehrwegeventils 1 beschränkt. Die Drucksensoren 7 können auch außerhalb des Mehrwegeventils 1 an geeigneter Weise platziert werden, wenn sich hieraus im Vergleich mit dem elektrischen Ansteuersignal 4 ein brauchbarer Wert für die Schaltverzögerung gewinnen lässt. The present invention is not limited to the preferred one described above Embodiment. Rather, modifications of this are also conceivable, which ones are also included in the scope of the claims. So the invention is not alone in a multi-way valve 1 applicable, which is in the manner of a pilot operated slide valve is formed, such as in a driven by a proportional magnet Pressure control valve. Furthermore, the arrangement of a pressure sensor 7 for detecting the electrical response signal 6 not to the two only given here preferably Places within the multi-way valve 1 limited. The pressure sensors 7 can also be placed outside the multi-way valve 1 in a suitable manner, if this results in Comparison with the electrical control signal 4 a useful value for the Switching delay wins.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
MehrwegeventilMulti-way valve
22
Schaltmechanikswitching mechanism
33
Vorsteuerventilpilot valve
44
Elektrisches AnsteuersignalElectrical control signal
55
Elektronikeinheitelectronics unit
66
Elektrisches ReaktionssignalElectrical response signal
77
Drucksensorpressure sensor
88th
Ausgabeeinheitoutput unit

Claims (12)

Elektrische Einrichtung für die Ansteuerung eines Mehrwegeventils (1) zum Schalten eines Druckmittelflusses zwischen mindestens zwei äußeren Anschlüssen (P, A) mittels einer integrierten Schaltmechanik (2), die über elektrische Ansteuersignale (4) betätigbar ist,
dadurch gekennzeichnet, dass eine Elektronikeinheit (5) vorgesehen ist, der eingangsseitig das elektrische Ansteuersignal (4) und ein auf einen Ansteuerimpuls folgendes elektrisches Reaktionssignal (6) zugeht, woraus die Elektronikeinheit (5) durch Vergleich den zeitlichen Abstand zwischen dem Ansteuersignal (4) und dem Reaktionssignal (6) ermittelt, um hieraus die Schaltverzögerung als Maß des Verschleißzustandes der Schaltmechanik (2) zu bestimmen.Electrical device for the control of a multi-way valve (1) for switching a pressure medium flow between at least two outer connections (P, A) by means of an integrated switching mechanism (2) which can be actuated via electrical control signals (4),
characterized in that an electronic unit (5) is provided which receives the electrical control signal (4) on the input side and an electrical reaction signal (6) following a control pulse, from which the electronic unit (5) compares the time interval between the control signal (4) and the reaction signal (6) is determined in order to determine the switching delay as a measure of the state of wear of the switching mechanism (2). Elektrische Einrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass zur Erzeugung des elektrischen Reaktionssignals (6) ein Drucksensor vorgesehen ist, der im Mehrwegeventil (1) integriert ist und elektrisch mit der Elektronikeinheit (5) in Verbindung steht.Electrical device according to claim 1,
characterized in that a pressure sensor is provided for generating the electrical reaction signal (6), which is integrated in the multi-way valve (1) and is electrically connected to the electronics unit (5). Elektrische Einrichtung nach Anspruch 2,
dadurch gekennzeichnet, dass der Drucksensor (7a) im Bereich des Speisedruckanschlusses (P) des Mehrwegeventils (1) integriert ist, wobei das Reaktionssignal (6) durch den Speisedruckabfall beim Schalten des einzelnen Mehrwegeventils (1) oder mehrerer im Rahmen einer Ventileinheit angeordneter Mehrwegeventile (1) entsteht.Electrical device according to claim 2,
characterized in that the pressure sensor (7a) is integrated in the area of the feed pressure connection (P) of the multi-way valve (1), the reaction signal (6) due to the drop in the feed pressure when switching the individual multi-way valve (1) or a plurality of multi-way valves (1) arranged in the context of a valve unit 1) arises. Elektrische Einrichtung nach Anspruch 2,
dadurch gekennzeichnet, dass der Drucksensor (7) im Bereich des mindestens einen Arbeitsanschlusses (A) des Mehrwegeventils (1) integriert ist, wobei das Reaktionssignal (6) durch den Arbeitsdruckanstieg beim Schalten des Mehrwegeventils (1) entsteht. Electrical device according to claim 2,
characterized in that the pressure sensor (7) is integrated in the area of the at least one working connection (A) of the multi-way valve (1), the reaction signal (6) being generated by the rise in working pressure when the multi-way valve (1) is switched. Elektrische Einrichtung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Elektronikeinheit (5) die ermittelte Schaltverzögerung mit einem hinterlegten Sollwert vergleicht, um eine Verschleißgrenze zu definieren.Electrical device according to one of the preceding claims,
characterized in that the electronic unit (5) compares the determined switching delay with a stored target value in order to define a wear limit. Elektrische Einrichtung nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass der Elektronikeinheit (6) eine Ausgabeeinheit (8) zum Anzeigen des Verschleißzustandes und/oder der Verschleißgrenze nachgeschaltet ist.Electrical device according to one of the preceding claims,
characterized in that the electronics unit (6) is followed by an output unit (8) for displaying the state of wear and / or the wear limit. Elektrische Einrichtung nach einem der vorstehenden Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die elektrischen Ansteuersignale (4) mindestens einem Vorsteuerventil (3) des Mehrwegeventils (1) zugerührt sind, worüber die Schaltmechanik nach Art einer Vorsteuerung betätigbar ist.Electrical device according to one of the preceding claims 1 to 6,
characterized in that the electrical control signals (4) are fed to at least one pilot valve (3) of the multi-way valve (1), via which the switching mechanism can be actuated in the manner of a pilot control. Elektrische Einrichtung nach einem der vorstehenden Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die elektrischen Ansteuersignale (4) mindestens einem Elektromagneten des Mehrwegeventils (1) zugerührt sind, worüber die Schaltmechanik direkt elektromagnetisch betätigbar ist.Electrical device according to one of the preceding claims 1 to 6,
characterized in that the electrical control signals (4) are fed to at least one electromagnet of the multi-way valve (1), via which the switching mechanism can be actuated electromagnetically directly. Pneumatisches Mehrwegeventil mit einer elektrischen Einrichtung gemäß einem der vorstehenden Ansprüche.Pneumatic multi-way valve with an electrical device according to one of the preceding claims. Pneumatische Ventileinheit, umfassend mehrere Mehrwegeventile nach Anspruch 9. Pneumatic valve unit, comprising several multi-way valves Claim 9. Verfahren für die Ansteuerung eines Mehrwegeventils (1) über ein elektrisches Ansteuersignal,
dadurch gekennzeichnet, dass das elektrische Ansteuersignal (4) und ein auf einen Ansteuerimpuls folgendes elektrisches Reaktionssignal (6) erfasst wird, woraus durch Vergleich der zeitliche Abstand zwischen dem Ansteuersignal (4) und dem Reaktionssignal (6) ermittelt wird, um hieraus die Schaltverzögerung als Maß des Verschleißzustandes der Schaltmechanik (2) zu bestimmen.Method for controlling a multi-way valve (1) via an electrical control signal,
characterized in that the electrical control signal (4) and an electrical response signal (6) following a control pulse is detected, from which the time interval between the control signal (4) and the response signal (6) is determined by comparison, in order to derive the switching delay therefrom as To determine the degree of wear of the switching mechanism (2). Verfahren nach Anspruch 11,
dadurch gekennzeichnet, dass der Verschleißzustand und/oder eine über eine zusätzliche Sollwertvorgabe ermittelte Verschleißgrenze angezeigt oder signalisiert wird.A method according to claim 11,
characterized in that the state of wear and / or a wear limit determined via an additional setpoint value is displayed or signaled.
EP03101417A 2002-05-23 2003-05-20 Electrical device for controlling a valve with wear condition diagnosis Expired - Lifetime EP1365159B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009151955A1 (en) * 2008-06-09 2009-12-17 Ross Operating Valve Company Control valve system with cycle monitoring, diagnostics and degradation prediction
CN101749296A (en) * 2008-12-15 2010-06-23 Abb技术股份公司 Method and air-operated valve for determining wear condition of valve through pressure sensing
CN103063420A (en) * 2012-11-23 2013-04-24 河南龙宇煤化工有限公司 Gasification furnace switch valve comprehensive fault forecasting method
WO2017045701A1 (en) * 2015-09-15 2017-03-23 Festo Ag & Co. Kg Valve control means, and method for operating a valve control means
CN106931001A (en) * 2017-04-27 2017-07-07 江苏恒立液压科技有限公司 Banked direction control valves experiment loading unit and its test method

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007405B4 (en) 2007-02-12 2011-05-05 Robert Bosch Gmbh Electrical device for detecting the state of wear of a dynamic sealing element and a pneumatic valve / cylinder containing this
DE102007039663B4 (en) 2007-08-22 2011-01-13 Robert Bosch Gmbh Valve arrangement with diagnostic means for determining a need for maintenance
DE102008062289A1 (en) 2008-12-15 2010-06-24 Abb Technology Ag Method for the path and pressure sensoric wear condition determination of a valve mechanism and such a use valve arrangement
DE102008064359A1 (en) 2008-12-22 2010-07-01 Abb Technology Ag Method for the position-dependent determination of electronic wear status of a valve mechanism and pneumatic valve
DE102009022891B3 (en) * 2009-05-27 2010-11-18 Abb Technology Ag Method for electronic wear state determination in a valve arrangement
DE102011016895B4 (en) 2011-04-13 2016-06-02 Kendrion (Donaueschingen/Engelswies) GmbH Method for determining the state of wear of an electromagnetic actuator during its operation
DE102014203389A1 (en) * 2014-02-25 2015-08-27 Zf Friedrichshafen Ag Control arrangement with compensation control unit
DE102014019961B3 (en) * 2014-09-01 2020-10-08 Werner Zahlhaas Method for determining the degree of wear of a valve and device for carrying out the method
DE102014012688B4 (en) 2014-09-01 2022-04-21 Acs Air Compressor Systeme Gmbh multi-way valve
DE102021211938B3 (en) 2021-10-22 2022-11-10 Festo Se & Co. Kg valve assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10110858A (en) * 1996-08-10 1998-04-28 Ckd Corp Pressure detecting method in electrical control directional control valve, electrical control directional control valve and electrical control valve manifold
US5765589A (en) * 1995-07-20 1998-06-16 Festo Kg Valve arrangement
EP1070893A2 (en) * 1999-07-16 2001-01-24 Smc Corporation Method and device for managing operation of solenoid valve
US6192321B1 (en) * 1997-09-29 2001-02-20 Fisher Controls International, Inc. Method of and apparatus for deterministically obtaining measurements
DE20120609U1 (en) * 2001-12-20 2002-03-21 Festo Ag & Co Diagnostic device for a fluid technology device and fluid technology device equipped therewith

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5765589A (en) * 1995-07-20 1998-06-16 Festo Kg Valve arrangement
JPH10110858A (en) * 1996-08-10 1998-04-28 Ckd Corp Pressure detecting method in electrical control directional control valve, electrical control directional control valve and electrical control valve manifold
US6192321B1 (en) * 1997-09-29 2001-02-20 Fisher Controls International, Inc. Method of and apparatus for deterministically obtaining measurements
EP1070893A2 (en) * 1999-07-16 2001-01-24 Smc Corporation Method and device for managing operation of solenoid valve
DE20120609U1 (en) * 2001-12-20 2002-03-21 Festo Ag & Co Diagnostic device for a fluid technology device and fluid technology device equipped therewith

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1998, Nr. 09, 31. Juli 1998 (1998-07-31) -& JP 10 110858 A (CKD CORP), 28. April 1998 (1998-04-28) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009151955A1 (en) * 2008-06-09 2009-12-17 Ross Operating Valve Company Control valve system with cycle monitoring, diagnostics and degradation prediction
US8271141B2 (en) 2008-06-09 2012-09-18 Ross Operating Valve Company Control valve system with cycle monitoring, diagnostics and degradation prediction
CN101749296A (en) * 2008-12-15 2010-06-23 Abb技术股份公司 Method and air-operated valve for determining wear condition of valve through pressure sensing
CN103063420A (en) * 2012-11-23 2013-04-24 河南龙宇煤化工有限公司 Gasification furnace switch valve comprehensive fault forecasting method
WO2017045701A1 (en) * 2015-09-15 2017-03-23 Festo Ag & Co. Kg Valve control means, and method for operating a valve control means
CN108026948A (en) * 2015-09-15 2018-05-11 费斯托股份有限两合公司 Valve control and the method for operating valve control
US20190049032A1 (en) * 2015-09-15 2019-02-14 Festo Ag & Co. Kg Valve Controller and Method for Operating a Valve Controller
US10767779B2 (en) * 2015-09-15 2020-09-08 Festo Se & Co. Kg Valve controller and method for operating a valve controller
CN108026948B (en) * 2015-09-15 2022-01-04 费斯托股份两合公司 Valve controller and method for operating a valve controller
CN106931001A (en) * 2017-04-27 2017-07-07 江苏恒立液压科技有限公司 Banked direction control valves experiment loading unit and its test method

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DE10222890A1 (en) 2003-12-11
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ATE365872T1 (en) 2007-07-15
DE10222890B4 (en) 2004-06-17
DE50307545D1 (en) 2007-08-09

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