EP1365159A2 - Elektrische Einrichtung für die Ansteuerung eines Mehrwegeventils mit einer Verschleisszustandserkennung - Google Patents
Elektrische Einrichtung für die Ansteuerung eines Mehrwegeventils mit einer Verschleisszustandserkennung Download PDFInfo
- 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
- Authority
- EP
- European Patent Office
- Prior art keywords
- way valve
- electrical
- wear
- valve
- electrical device
- 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
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Classifications
-
- 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.
Landscapes
- 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
Description
- 1
- Mehrwegeventil
- 2
- Schaltmechanik
- 3
- Vorsteuerventil
- 4
- Elektrisches Ansteuersignal
- 5
- Elektronikeinheit
- 6
- Elektrisches Reaktionssignal
- 7
- Drucksensor
- 8
- Ausgabeeinheit
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. - 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. - 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. - 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. - 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. - 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. - 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. - 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. - Pneumatisches Mehrwegeventil mit einer elektrischen Einrichtung gemäß einem der vorstehenden Ansprüche.
- Pneumatische Ventileinheit, umfassend mehrere Mehrwegeventile nach Anspruch 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. - Verfahren nach Anspruch 11,
dadurch gekennzeichnet, dass der Verschleißzustand und/oder eine über eine zusätzliche Sollwertvorgabe ermittelte Verschleißgrenze angezeigt oder signalisiert wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10222890A DE10222890B4 (de) | 2002-05-23 | 2002-05-23 | Elektrische Einrichtung für die Ansteuerung eines Mehrwegeventils mit einer Verschleißzustandserkennung |
DE10222890 | 2002-05-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1365159A2 true EP1365159A2 (de) | 2003-11-26 |
EP1365159A3 EP1365159A3 (de) | 2005-05-25 |
EP1365159B1 EP1365159B1 (de) | 2007-06-27 |
Family
ID=29285660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03101417A Expired - Lifetime EP1365159B1 (de) | 2002-05-23 | 2003-05-20 | Elektrische Einrichtung für die Ansteuerung eines Ventils mit einer Verschleisszustandserkennung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1365159B1 (de) |
AT (1) | ATE365872T1 (de) |
DE (2) | DE10222890B4 (de) |
Cited By (5)
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 (zh) * | 2008-12-15 | 2010-06-23 | Abb技术股份公司 | 以压力传感方式确定阀门机械的磨损状态的方法及气动阀 |
CN103063420A (zh) * | 2012-11-23 | 2013-04-24 | 河南龙宇煤化工有限公司 | 气化炉开关阀综合故障预测方法 |
WO2017045701A1 (de) * | 2015-09-15 | 2017-03-23 | Festo Ag & Co. Kg | Ventilsteuerung und verfahren zum betreiben einer ventilsteuerung |
CN106931001A (zh) * | 2017-04-27 | 2017-07-07 | 江苏恒立液压科技有限公司 | 多路阀试验加载装置及其试验方法 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007007405B4 (de) | 2007-02-12 | 2011-05-05 | Robert Bosch Gmbh | Elektrische Einrichtung zur Erkennung des Verschleißzustandes eines dynamischen Dichtelementes sowie ein dieses enthaltendes Pneumatikventil/-zylinder |
DE102007039663B4 (de) | 2007-08-22 | 2011-01-13 | Robert Bosch Gmbh | Ventilanordnung mit Diagnosemitteln zum Feststellen eines Wartungsbedarfs |
DE102008062289A1 (de) | 2008-12-15 | 2010-06-24 | Abb Technology Ag | Verfahren zur weg- und drucksensorischen Verschleißzustandsermittlung einer Ventilmechanik sowie eine solche nutzende Ventilanordnung |
DE102008064359A1 (de) | 2008-12-22 | 2010-07-01 | Abb Technology Ag | Verfahren zur positionsabhängigen elektronischen Verschleißzustandsermittlung einer Ventilmechanik sowie pneumatisches Ventil |
DE102009022891B3 (de) * | 2009-05-27 | 2010-11-18 | Abb Technology Ag | Verfahren zur elektronischen Verschleißzustandsermittlung bei einer Ventilanordnung |
DE102011016895B4 (de) | 2011-04-13 | 2016-06-02 | Kendrion (Donaueschingen/Engelswies) GmbH | Verfahren zur Bestimmung des Verschleißzustandes eines elektromagnetischen Aktors während dessen Betriebs |
DE102014203389A1 (de) * | 2014-02-25 | 2015-08-27 | Zf Friedrichshafen Ag | Steuerungsanordnung mit Ausgleichssteuereinheit |
DE102014012688B4 (de) | 2014-09-01 | 2022-04-21 | Acs Air Compressor Systeme Gmbh | Mehrwegeventil |
DE102014019961B3 (de) * | 2014-09-01 | 2020-10-08 | Werner Zahlhaas | Verfahren zur Ermittlung des Verschleißgrades eines Ventils und Vorrichtung zur Durchführung des Verfahrens |
DE102021211938B3 (de) | 2021-10-22 | 2022-11-10 | Festo Se & Co. Kg | Ventilanordnung |
Citations (5)
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JPH10110858A (ja) * | 1996-08-10 | 1998-04-28 | Ckd Corp | 電気操作方向制御弁における圧力検出方法、電気操作方向制御弁及び電気操作弁マニホールド |
US5765589A (en) * | 1995-07-20 | 1998-06-16 | Festo Kg | Valve arrangement |
EP1070893A2 (de) * | 1999-07-16 | 2001-01-24 | Smc Corporation | Verfahren und Vorrichtung zur Betriebsverwaltung eines elektromagnetischen Schieberventils |
US6192321B1 (en) * | 1997-09-29 | 2001-02-20 | Fisher Controls International, Inc. | Method of and apparatus for deterministically obtaining measurements |
DE20120609U1 (de) * | 2001-12-20 | 2002-03-21 | Beck IPC GmbH, 35578 Wetzlar | Diagnoseeinrichtung für eine fluidtechnische Einrichtung sowie damit ausgestattete fluidtechnische Einrichtung |
-
2002
- 2002-05-23 DE DE10222890A patent/DE10222890B4/de not_active Expired - Fee Related
-
2003
- 2003-05-20 EP EP03101417A patent/EP1365159B1/de not_active Expired - Lifetime
- 2003-05-20 DE DE50307545T patent/DE50307545D1/de not_active Expired - Lifetime
- 2003-05-20 AT AT03101417T patent/ATE365872T1/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5765589A (en) * | 1995-07-20 | 1998-06-16 | Festo Kg | Valve arrangement |
JPH10110858A (ja) * | 1996-08-10 | 1998-04-28 | Ckd Corp | 電気操作方向制御弁における圧力検出方法、電気操作方向制御弁及び電気操作弁マニホールド |
US6192321B1 (en) * | 1997-09-29 | 2001-02-20 | Fisher Controls International, Inc. | Method of and apparatus for deterministically obtaining measurements |
EP1070893A2 (de) * | 1999-07-16 | 2001-01-24 | Smc Corporation | Verfahren und Vorrichtung zur Betriebsverwaltung eines elektromagnetischen Schieberventils |
DE20120609U1 (de) * | 2001-12-20 | 2002-03-21 | Beck IPC GmbH, 35578 Wetzlar | Diagnoseeinrichtung für eine fluidtechnische Einrichtung sowie damit ausgestattete fluidtechnische Einrichtung |
Non-Patent Citations (1)
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)
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 (zh) * | 2008-12-15 | 2010-06-23 | Abb技术股份公司 | 以压力传感方式确定阀门机械的磨损状态的方法及气动阀 |
CN103063420A (zh) * | 2012-11-23 | 2013-04-24 | 河南龙宇煤化工有限公司 | 气化炉开关阀综合故障预测方法 |
WO2017045701A1 (de) * | 2015-09-15 | 2017-03-23 | Festo Ag & Co. Kg | Ventilsteuerung und verfahren zum betreiben einer ventilsteuerung |
CN108026948A (zh) * | 2015-09-15 | 2018-05-11 | 费斯托股份有限两合公司 | 阀控制器及用于操作阀控制器的方法 |
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 (zh) * | 2015-09-15 | 2022-01-04 | 费斯托股份两合公司 | 阀控制器及用于操作阀控制器的方法 |
CN106931001A (zh) * | 2017-04-27 | 2017-07-07 | 江苏恒立液压科技有限公司 | 多路阀试验加载装置及其试验方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10222890B4 (de) | 2004-06-17 |
ATE365872T1 (de) | 2007-07-15 |
DE10222890A1 (de) | 2003-12-11 |
EP1365159B1 (de) | 2007-06-27 |
EP1365159A3 (de) | 2005-05-25 |
DE50307545D1 (de) | 2007-08-09 |
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