EP2606240B1 - Dispositif de commande électrofluidique - Google Patents

Dispositif de commande électrofluidique Download PDF

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Publication number
EP2606240B1
EP2606240B1 EP10795241.8A EP10795241A EP2606240B1 EP 2606240 B1 EP2606240 B1 EP 2606240B1 EP 10795241 A EP10795241 A EP 10795241A EP 2606240 B1 EP2606240 B1 EP 2606240B1
Authority
EP
European Patent Office
Prior art keywords
module
fluidic
valve
control unit
diagnostic module
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.)
Not-in-force
Application number
EP10795241.8A
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German (de)
English (en)
Other versions
EP2606240A1 (fr
Inventor
Ulrich Trautwein
Grzegorz Bogdanowicz
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP2606240A1 publication Critical patent/EP2606240A1/fr
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Publication of EP2606240B1 publication Critical patent/EP2606240B1/fr
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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
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/086—Sensing means, e.g. pressure sensors
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0867—Data bus systems
    • 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

Definitions

  • the invention relates to an electrofluidic control device, comprising a modular control unit, which contains an electrotechnical module without fluidic functionality and a downstream in the axial direction of a device main axis fluidic assembly, wherein the electrical assembly comprises a control module with a connection of an external electrical bus enabling bus interface and a wherein the fluid power module is interspersed in the axial direction of the main axis of the device by a plurality of main fluid channels and is equipped with at least one communicating with at least one of the main fluid channels Elektrofluidischen working unit, and with a diagnostic module, the sensor means for detecting at least one operating state of the control unit has and how the at least one electro-fluidic working unit via one of the two B Assembly-passing internal electric bus is connected to the bus station.
  • electrofluidic control device of this type contains two directly juxtaposed assemblies, one of which is designed as an electro-technical assembly and a fluid-technical assembly.
  • the electrotechnical module contains a an external electronic control unit communicating control module, which is coupled via an internal electric bus with electro-fluidic working units of the fluid power assembly.
  • the electrofluidic working units are electrically operated, pilot-operated multi-way valves, which communicate with a plurality of the main fluid passages passing through the fluidic assembly.
  • the fluid power assembly is equipped with at least one diagnostic module that is capable of monitoring the operating state of at least one adjacently located multi-way valve and to report corresponding monitoring information via the internal bus to the control module.
  • a module assembly which has a plurality of valve modules which are mounted to an electrical assembly having a control module connected to an external control module, a plurality of terminal-mounted electrical modules and a safety device equipped with a switching arrangement.
  • the safety module is able to interrupt the voltage supply to the valve modules when safety-relevant states have been detected by a control and / or diagnostic device.
  • EP 1 573 210 B1 discloses a fluid power control device having a modular assembly, which is composed of a plurality of alternately lined-up valve modules and diagnostic modules.
  • the diagnostic modules are able to detect at least one operating state of one or both of the adjacent valve modules and to report to a control electronics.
  • valve battery which has valve modules and a control module controlling the valve modules.
  • controller position sensing modules are provided, which are arranged adjacent to the valve modules and can detect the switching position of the valve members of the valve modules to monitor the correct operation of the valve modules.
  • a valve assembly which is equipped with at least one sensor to detect the switching position of a valve member and monitor.
  • the WO 2009/120942 A2 discloses an electro-fluidic control device comprising a modular control device including an electro-technical assembly consisting of a plurality of I / O modules, which is mounted to a solenoid-equipped fluidic assembly with the interposition of a main communication module acting as a transition module.
  • Each I / O module may include an internal detection circuit for detecting a potential voltage drop.
  • the invention has for its object to provide an electro-fluidic control device of the type mentioned above, which allows for compact dimensions reliable monitoring of at least one operating state of the control unit.
  • the diagnostic module is arranged as a transition module between the one hand, the electrical assembly and on the other hand, the fluidic assembly and penetrated by the internal electrical bus, it also forms a closure module for closing the front of him opening main fluid channels of the fluid power assembly.
  • the diagnostic module simultaneously fulfills several functions. In addition to its main function, the monitoring of at least one operating state of the control unit, it assumes the function of a designated as a transition module adapter, with the help of the electrical assembly and the fluid power assembly are lined up securely and stably.
  • the diagnostic module sits between these two assemblies, with on one side the electrotechnical Assembly and on the other side of the fluid power assembly is grown.
  • the diagnostic module also functions as a closure module for the fluid-tight separation of the main fluid channels opening out from it to the electrotechnical assembly which adjoins on the opposite side. An additional, separate closure module can thus be dispensed with.
  • the electrical assembly is in addition to the connection of an external electrical bus enabling bus interface equipped with multiple to the internal electrical bus and via this to the bus station electrical inputs and / or outputs.
  • an external electrical bus enabling bus interface equipped with multiple to the internal electrical bus and via this to the bus station electrical inputs and / or outputs.
  • connecting cables leading to external sensors can be connected to receive in this way feedback signals that are generated in the monitoring of external consumers, which are operated in particular by the mediation of at least one electro-fluidic working unit.
  • external consumers are realized for example in the form of fluid-operated drives.
  • the electrical outputs can be used, for example, to external consumers, such as external valve units or external electric drives, with the supply required electrical signals and / or electrical actuation energy.
  • the control unit expediently has at least one input module provided with one or more electrical inputs and / or at least one output module provided with one or more electrical outputs and / or at least one combined input module provided with electrical inputs and electrical outputs. and output module. All existing input and / or output modules are arranged in series with the control module and the diagnostic module. At least one input and / or output module is expediently located between the control module and the diagnostic module, wherein it is considered particularly advantageous if all existing input and / or output modules are placed between the control module on the one hand and the diagnostic module on the other hand.
  • the sensor means of the diagnostic module are expediently arranged and configured such that they can detect at least one state variable of the fluid located in at least one of the main fluid passages. Appropriately, all main fluid channels can be monitored in this way.
  • the sensor means are preferably able to detect the pressure and / or the temperature and / or the humidity of the fluid. With the aid of pressure detection, it is possible to determine, for example, whether leakage occurs and / or whether the desired flow values are being achieved.
  • the sensor means per main fluid channel to be monitored with at least one own sensor unit which is connected to the internal electric bus.
  • the existing sensor units can within the diagnostic module are placed optimally with respect to the closed by the diagnostic module main fluid channels.
  • a blind hole which is aligned with this main fluid channel and with which the sensor means communicate expediently exists in the diagnostic module per main fluid channel to be monitored.
  • This blind hole can thus virtually form a monitoring space in which the desired condition monitoring can take place.
  • control unit has an electrically operable valve unit, which is arranged either directly or immediately adjacent to the diagnostic module and for monitoring the sensor means of the diagnostic module are formed.
  • the sensor means are able to detect at least one switching position of this valve unit in order to be able to monitor the proper operation of the valve unit.
  • a valve unit arranged next to the diagnostic module can be formed, for example, by an electrofluidic working unit of the fluidic module arranged adjacent to the diagnostic module.
  • an embodiment is particularly advantageous in which the valve unit monitored by the diagnostic module does not belong to the fluidic module, but is mounted individually on the diagnostic module.
  • valve unit arranged on or next to the diagnostic module and monitored by its sensor means is expediently able to establish a fluid connection between two main fluid passages which pass through the fluidic module to control.
  • the valve unit is capable of selectively connecting or disconnecting two such main fluid passages.
  • control unit which is equipped with electro-fluidic working units in the form of piloted multi-way valves, to provide a communicating with all pilot valves pilot feed either with pressure medium or relieve pressure.
  • the pilot control medium can thus be switched on or off.
  • the monitorable by the diagnostic module valve unit can also be designed as a pressure build-up valve or soft-start valve to cause within the electrical assembly, in particular during their commissioning, a gradual pressure build-up and thereby prevent malfunction of connected consumers.
  • the fluid power module is expediently equipped with a plurality of fluidic modules lined up in the axial direction of the main axis of the device, each of which has at least one electrofluidic working unit. At least one fluid power module can also be equipped with several electro-fluidic working units at the same time.
  • At least one electrofluidic working unit of the electrotechnical module is expediently designed as an electrically operable multi-way valve, with which a connected, external consumption can be fluidly controlled.
  • At least one electrofluidic working unit can also be designed as a vacuum generator unit, with which a negative pressure can be generated which, for example, in the Handling technology is available to operate a designed as a suction cup consumer.
  • a plurality of fluidic modules of the electrotechnical module preferably each contain a distributor unit penetrated by the main fluid channels and the internal electrical bus and also at least one electrofluidic working unit mounted on this distributor unit in a preferably detachable manner, wherein the fluidic modules are juxtaposed with their distributor units and wherein the fluidic module is attached to the diagnostic module with an end-side distribution unit.
  • Fig. 1 is a designated generally by reference numeral 1 electrofluidic control device, which also consists of a again in Fig. 2 and 3 illustrated control unit 2 and expediently also an only schematically indicated, external electronic control unit 3 composed.
  • the control unit 2 is modular. It has a main extension direction, which is defined by a dash-dotted line indicated main device axis 4.
  • the control unit 2 contains an electrotechnical assembly 5 and a fluid power assembly 6. In addition, it contains a arranged between the electrical assembly 5 and the fluid assembly 6 diagnostic module 7.
  • the electrical assembly 5, the diagnostic module 7 and the fluid assembly 6 are axial direction of the main axis. 4 arranged consecutively and secured together.
  • the diagnostic module 7 realizes the transition between the electrical component 5 and the fluid power module 6. It can therefore also be referred to as a transition module or adapter module. It has a first mounting surface 9a on a first end face 8a oriented in the axial direction of the device main axis 4 and has a second mounting face 9b on a second end face 8b oriented oppositely to the first end face 8a.
  • the two mounting surfaces 9a, 9b are oriented opposite to each other in the axial direction of the device main axis 4.
  • the electrical assembly 5 is attached and fixed.
  • the fluidic assembly 6 is attached and fixed.
  • the diagnostic module 7 expediently still a termination module that the better distinction in the electrical assembly 5 as the first termination module 12th and in the fluidic module 6 is referred to as the second termination module 13.
  • the termination modules 12, 13 can also each be a component of the associated assembly 5, 6.
  • the electrotechnical module 5 has only electrical and / or electromechanical functionalities. It has no fluidic functionalities, so it is neither penetrated by any fluid channels nor is they traversed by the operation of the control unit 2 of fluid. Fluidic functionalities are reserved for the fluidic module 6 and preferably also for the diagnostic module 7. In this case, it is of relevance for the diagnostic module 7 that it acts, as it were, as a bulkhead wall for separating the fluid-technical structures of the fluidic module 6 from the electrotechnical module 5. It can therefore also be referred to as a closure module.
  • the fluidic module 6 is equipped with at least one and expediently with a plurality of electro-fluidic working units 14 whose operation is controlled by a control module 15 of the electrical component 5.
  • the working units 14 are electrically actuated and control, depending on their electrical actuation, the flow of a fluid, in particular compressed air.
  • the electrofluidic working units 14 of the exemplary embodiment are electrically actuatable multiway valves.
  • Each multi-way valve 14 a contains at least one electrically actuatable drive part 16 and a fluid control part 17 with at least one valve member 18 arranged in the interior, which by the associated drive part 16 is movable and in particular switchable between different switching positions.
  • the multiway valves 14a are preferably pilot operated multiway valves.
  • the at least one drive part 16 is designed as a pilot valve 16a, in particular in a design as a solenoid valve.
  • the at least one pilot valve 16a is capable of generating a fluidic control signal corresponding to the obtained electrical actuation signals, which acts on the associated valve member 18 to position it accordingly.
  • the control module 15 has an internal bus station 22 as well as an externally accessible bus interface 23 which is electrically connected to the bus station 22.
  • An external electrical bus 24 producing the connection to the external electronic control unit 3 is connected or connectable to the bus interface 23.
  • sensor means 28 of the diagnostic module 7 are Also connected to the internal bus 25 .
  • sensor means 28 of the diagnostic module 7 are also connected to the internal bus 25.
  • the corresponding interfaces, which are also referred to below as sensor interfaces, are indicated at 32.
  • the fluidic module 6 in the axial direction of the device main axis 4 passes through a plurality of fluid channels, which are designated for better distinction from other fluid channels as the main fluid channels 33.
  • one of the main fluid channels 33 is a main feed channel 33a, which can be connected to an external pressure source P via a connection device 34 which is accessible from the outside.
  • the pressure source P supplies a fluidic pressure medium, in particular compressed air, to be processed by the electro-fluidic working units 14.
  • One or, as in the exemplary embodiment, two further main fluid passages 33 are designed as main discharge passages 33b, 33c, which expediently communicate with the atmosphere via a respective silencer 35 when the pressure medium is compressed air.
  • the main discharge channels 33b, 33c are provided with interfaces through which they can be connected to a tank.
  • Each of the aforementioned main fluid passages 33 communicates with each multiway valve 14a via a fluidic interface 36.
  • each multiway valve 14a communicates with two individual working channels 37a, 37b, which lead to the outside of the control unit 2 accessible working ports 38, to which a controllable by the originating from the pressure source P pressure medium consumer can be connected.
  • Each multi-way valve 14a which is preferably a 5/2-way valve, can be put into such switching states by appropriate actuation of its drive part 16 that two working ports 38 connected to it alternately with the main feed channel 33a or a Hauptabbowkanal 33b, 33c are connected.
  • responsible for the fluidic connection is the respective switching position of the valve member 18 of the respective multiway valve 14a.
  • the fluidic control signal required to switch over the valve members 18 is supplied by a fluidic pilot medium controlled by the drive members 16. This is supplied by way of example to all drive parts 16 via a further main fluid channel 33 which is connected to each pilot valve 16a via a respective fluidic interface 42 and which is referred to below as the pilot control feed channel 33d.
  • fluidic interfaces are indicated at 39, via which the working channels 37a, 37b are connected to the multiway valves 14a.
  • the pilot feed channel 33d could have its own, in Fig. 2 dash-dotted lines indicated pilot control feed port 43 are fed from the outside with the desired pilot medium.
  • the control unit 2 of the embodiment offers the possibility to supply the pilot control feed channel 33d internally in the control unit 2 with pilot control medium by being connected to the main feed channel 33a. The pilot medium is thus diverted from the main feed channel 33a.
  • the control unit 2 is equipped with a suitable valve unit 44.
  • This valve unit 44 communicates, in particular with reference to FIG Fig. 2 apparent switching symbol is easy to understand, on the one hand with the main feed channel 33a, on the other with the pilot feed channel 33d and finally also with a leading to the atmosphere pre-tax discharge channel 45th
  • the valve unit 44 can optionally take one of two switching positions, wherein the pilot feed channel 33d communicates with the main feed channel 33a in one switching position and with the pilot discharge channel 45 in the other switching position. In this way, the pilot control feed channel 33d can optionally be supplied with the necessary for operating the working units 14 pilot control medium or pressure moderately relieved. In pressure-relieved state of the pilot control feed channel 33d, the multi-way valves 14a can not be switched.
  • valve unit 44 communicates with the main feed passage 33a, the pilot feed passage 33d, and the pilot discharge passage 45 are shown in FIG Fig. 3 indicated at 50.
  • the pressure relief of the pilot feed channel 33d could take place through one of the main discharge channels 33b, 33c, instead of via the separately present pilot discharge channel 45.
  • the diagnostic module 7 has the task of forming a closure module, by means of which the main fluid channels 33 passing through the fluidic module 6 are closed on their front side facing the diagnostic module 7.
  • the main fluid channels 33 thus terminate either on the second mounting surface 9b or in the interior of the diagnostic module 7 and do not terminate at the first mounting surface 9a of the diagnostic module 7 facing the electrotechnical module 5. Consequently, there is no need for any sealing measures and, in particular, the electrotechnical assembly 5 can be grown and removed without the risk of fluid leakage from the main fluid channels 33.
  • the electrotechnical module also contains an input module 46 and an output module 47.
  • the input module 46 contains one or more electrical inputs 48
  • the output module 47 contains one or more electrical outputs 49.
  • the electrical inputs 48 and outputs 49 are designed to be able to connect electrical cables leading to external components which are to be connected to the control unit 2.
  • the electrical inputs 48 can be connected, for example, with external sensors and the electrical outputs 49 can be connected to external electrical loads, for example with external valve devices or external electrical drives.
  • control module 15 in addition to its bus interface 23 still have at least one electrical input and / or at least one electrical output.
  • the electrical assembly 5 also have a combined input and output module, which is provided with both electrical inputs and electrical outputs.
  • Both the electrical inputs 48 and the electrical outputs 49 are connected via internal interfaces 52 of the associated module 46, 47 with the internal electrical bus 25 in connection.
  • the existing at least one input and / or output module 46, 47 is expediently arranged between the control module 15 and the diagnostic module 7. Apart from the optionally present first termination module 12, the control module closes 15 thus expediently the electrotechnical assembly 5 on the diagnostic module 7 opposite end side.
  • the fluidic module 6 has a plurality of aligned in the axial direction of the main axis 4 and equipped with at least one electrofluidic working unit 14 or equipable fluidic modules 53.
  • the fluidic module 6 can thus be modularly equipped with a different number of fluidic modules 53.
  • three fluid power modules 53 are present.
  • the series of fluidic modules 53 is mounted with one end face on the second mounting surface 9b and is provided on the opposite end side with the second termination module 13, which expediently carries the connection device 34 for the main feed channel 33a and the optionally existing silencers 35.
  • the second termination module 13 also serves the end-side termination of the pilot control feed channel 33d.
  • All fluid power modules 53 are interspersed on the one hand by the main fluid channels 33 and on the other by the internal electric bus 25.
  • the fluid power modules 53 are in each case of modular construction and each contain a distributor unit 54 penetrated by all main fluid channels 33 and by the internal electrical bus 25, which is detachably equipped with at least one electrofluidic working unit 14.
  • each distributor unit 54 has an assembly surface 55 on an outer surface oriented perpendicular to the main axis 4 of the device, to which at least one respective electrofluidic working unit 14 can be attached in a preferably releasable manner.
  • the above-mentioned fluidic interfaces 36, 39 and 42 are also located on the mounting surfaces 55 as the other electrical interfaces 27.
  • the mounting surface 55 is provided which has a corresponding equipment at fluidic and electrical interfaces, so in that a multi-way valve 14 a can be mounted thereon.
  • each distributor unit 54 is provided with a mounting surface 55 which defines two mounting positions, so that two multiway valves 14a can be mounted next to one another in the axial direction of the main device axis 4.
  • the fluid power modules 53 are strung together with their Vermaschinerein units 54 and attached to each other. About the diagnostic module 7 facing distribution unit 54, the entire fluid power assembly 6 is attached to the second mounting surface 9b of the diagnostic module 7.
  • the sensor means 28 it is possible with the aid of the sensor means 28 to detect at least one state variable of the fluid or pressure medium located and / or flowing in at least one of the main fluid passages.
  • each main fluid channel 33 in the diagnostic module 7 is expediently assigned at least one own sensor unit 28a of the sensor means 28, which is capable of determining at least one state variable of the fluid located in the associated main fluid channel 33.
  • These sensor units 28a are preferably designed to determine the pressure and / or the temperature and / or the humidity or moisture of the pressure medium. On the basis of the determined measured values which are forwarded via the internal bus 25 to the bus station 22 and from there to the external electronic control unit 3, the correct functioning of the control unit 2 and its components can be reliably monitored by comparison with reference values.
  • the evaluation of the measured values determined by the sensor means 28 can alternatively or additionally also take place in an internal electronic control unit 56, with which the control module 15 is expediently equipped and which is preferably integrated in the bus station 22.
  • the detection takes place in a monitoring space 57 of the diagnosis module 7, to which the sensor means 28 are connected.
  • the interstitial space 57 is formed by a respective blind hole which opens out to the second mounting surface 9b and which is connected to a subsequent main fluid channel 33 of the fluid-technical subassembly 6 is aligned. In this way, regardless of the design of the components of the fluid power module 6 always consistently good measurement conditions in the diagnostic module 7 are provided.
  • the sensor means 28 are advantageously arranged and adapted to detect at least one operating state of the above-mentioned valve unit 44.
  • the senor means 28 expediently have a detection device 28b, which cooperates with the valve unit 44.
  • valve unit 44 An optimal interaction of the detection device 28b with the valve unit 44 is ensured in the embodiment in that the valve unit 44 is arranged directly on the diagnostic module 7. It is therefore located in close proximity to the sensor means 28 or their detection device 28b.
  • the diagnostic module 7 has expediently at a right angle to the main axis of the device 4 oriented side on a mounting surface 58 to which the valve unit 44 is mounted in a preferably releasable manner.
  • This mounting surface 58 is expediently oriented the same as the at least one mounting surface 55 of the distributor units 54.
  • this mounting surface 58 On the said mounting surface 58 are the above-mentioned fluidic interfaces 50.
  • this mounting surface 58 is provided with a connected in the interior of the diagnostic module 7 to the internal electrical bus 25 electrical interface 62, the mounted at Valve unit 44 with an electrically operable drive means 63 of the valve unit 44 is in communication.
  • the detection device 28b is designed to detect at least one switching position of the valve unit 44 or of a valve member 64 of the valve unit 44.
  • the detection device 28b for example, include a so-called Hall sensor, which is arranged in such a way next to the valve member 64 that it can be excited without contact by a motion-coupled to the valve member 64 permanent magnetic actuator 65.
  • An advantage of this design is that the detection device 28 b can be placed completely outside the valve unit 44.
  • valve unit 44 The detection of the operating state of the valve unit 44 is also possible if this valve unit 44 is not attached directly to the diagnostic module 7, but is located directly next to the diagnostic module 7 and is formed for example as part of the fluid power assembly 6. It could be detected by the diagnostic module 7, if no valve unit 44 is present, also directly the operating state of the first to the diagnostic module 7 subsequent electrofluidic working unit 14.
  • valve unit 44 which, unlike the working units 14, does not serve to control an external consumer but is designed for internal control purposes, it is particularly advantageous if this valve unit 44 - which in the exemplary embodiment the case is - combined with the diagnostic module 7 to form an assembly or assembly.
  • the diagnostic module 7 is stepped laterally to form its mounting surface 58, so that next to the mounting surface 58, a projection 66 of the diagnostic module 7 projects perpendicular to the device main axis 4 and mounted on the mounting surface 58 valve unit 44 in particular alongside flanked. Sensor means 28 accommodated in this projection 66 or a detection means 28b located there can optimally cooperate with the valve unit 44 placed next to it.
  • the sensor means 28 need not necessarily have all the functionalities described above. For example, they could also be designed and arranged to detect the operating state of only the fluid flowing in the control unit 2 or only one valve unit 44 or working unit 14 arranged in the region of the diagnostic module 7.
  • valve unit 44 is designed as a soft-start valve that provides for a gradual build-up of pressure in one of the main fluid passages 33.
  • the diagnostic module 7 expediently has a module base body 67, which is expediently designed in the form of a housing and in the interior of which the sensor means 28 and the electrical conductors required for their electrical contacting with the internal electrical bus 25 are located. Also, the possibly existing monitoring chambers 57 are formed in the module base body 67. Furthermore, fluid channels can run in the interior of the module body 67, which communicate with the valve unit 44 and which can communicate with further fluid channels of the control unit 2.
  • the internal electric bus 25 is expediently segmented in its longitudinal direction.
  • a bus segment 68 which is implemented for example on a printed circuit board and is fixed in the relevant module so that when attaching two modules due existing interface means 72 sets a continuous bus connection.
  • the main fluid channels 33 expediently each consist of a plurality of axially juxtaposed fluid channel sections, which pass through the fluid power modules 53 and aligned in the assembled state of the fluidic assembly 6 together correctly.
  • a significant advantage of the control unit 2 is that the diagnostic module 7 is placed between the electrical and the fluidic part of the control unit. In this way, an optimal functional separation between the two modules of the control unit 2 is possible, which precludes mutual interference. If required, fluidic functions can be integrated into the diagnostic module 7, for example fluid channels which communicate at least partially with the main fluid channels 33 of the fluidic module 6 and which can be controlled by a valve unit 44 which is mounted on the diagnostic module 7.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Valve Housings (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (15)

  1. Système de commande électrofluidique, comprenant un appareil de commande (2) présentant une structure modulaire, lequel comporte un groupe modulaire électrotechnique (5) sans fonctionnalité fluidique et un groupe modulaire relevant de la technique des fluides (6) disposé à la suite dans la direction axiale d'un axe principal d'appareil (4), sachant que le groupe modulaire électrotechnique (5) présente un module de commande (15) doté d'une interface de bus (23) permettant la connexion d'un bus électrique externe (24) et une station de bus (22) reliée électriquement à l'interface de bus (23) et sachant que le groupe modulaire relevant de la technique des fluides (6) est traversé dans la direction axiale de l'axe principal d'appareil (4) par plusieurs canaux principaux de fluide (33) et est équipé d'au moins une unité de travail électrofluidique (14) communiquant avec au moins un des canaux principaux de fluide (33), et comprenant un module de diagnostic (7), qui dispose de moyens de détection (28) servant à détecter au moins un état de fonctionnement de l'appareil de commande (2) et qui est connecté, comme l'unité de travail électrofluidique (14) au moins au nombre de une, par l'intermédiaire d'un bus électrique interne (25) traversant les deux groupes modulaires (5, 6) à la station de bus (22), caractérisé en ce que le module de diagnostic (7) est disposé en tant que module de transition entre d'un côté le groupe modulaire électrotechnique (5) et de l'autre côté le groupe modulaire relevant de la technique des fluides (6) et est traversé par le bus électrique interne (25), sachant qu'il forme en même temps un module de fermeture servant à fermer côté frontal les canaux principaux de fluide (33), débouchant dans sa direction, du groupe modulaire relevant de la technique des fluides (6).
  2. Dispositif de commande selon la revendication 1, caractérisé en ce que le groupe modulaire électrotechnique (5) est équipé en plus de l'interface de bus (23) de plusieurs entrées électriques (48) et/ou sorties électriques (49) connectées au bus électrique interne (25).
  3. Dispositif de commande selon la revendication 2, caractérisé en ce que les entrées électriques (48) et/ou les sorties électriques (49) sont disposées au niveau au moins d'un module d'entrée et/ou de sortie (46, 47) disposé de manière alignée par rapport au module de commande (15) et traversé par le bus électrique interne (25), sachant qu'au moins un module d'entrée et/ou de sortie (46, 47) de ce type est disposé de manière appropriée entre le module de commande (15) et le module de diagnostic (7).
  4. Dispositif de commande selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens de détection (28) sont disposés et réalisés pour détecter au moins une grandeur d'état du fluide se trouvant dans au moins un des canaux principaux de fluide (33).
  5. Dispositif de commande selon la revendication 4, caractérisé en ce que les moyens de détection (28) sont réalisés afin de détecter la pression et/ou la température et/ou l'humidité du fluide.
  6. Dispositif de commande selon la revendication 4 ou 5, caractérisé en ce que les moyens de détection (28) présentent, dans le module de diagnostic (7), par canal principal de fluide (33) à surveiller, au moins une unité de détection (28a) propre, laquelle est connectée au bus électrique interne (25).
  7. Dispositif de commande selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'un ou plusieurs des canaux principaux de fluide (33) débouchant côté frontal au niveau du groupe modulaire relevant de la technique des fluides (6) en direction du module de diagnostic (7) passent dans un trou borgne réalisé dans le module de diagnostic (7), lequel fait office de manière appropriée d'espace de surveillance, dans lequel les moyens de détection (28) détectent au moins un état de grandeur du fluide se trouvant dans le canal principal de fluide (33) associé.
  8. Dispositif de commande selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'appareil de commande (2) présente une unité de soupape (44) pouvant être actionnée électriquement, disposée directement au niveau du module de diagnostic (7) ou directement à côté du module de diagnostic (7), connectée au bus électrique interne (25), sachant que les moyens de détection (28) sont disposés et réalisés pour détecter au moins un état de fonctionnement de ladite unité de soupape (44).
  9. Dispositif de commande selon la revendication 8, caractérisé en ce que les moyens de détection (28) sont réalisés pour détecter au moins une position de commutation d'un organe de soupape (64) de l'unité de soupape (44).
  10. Dispositif de commande selon la revendication 8 ou 9, caractérisé en ce que le module de diagnostic (7) est étagé à l'extérieur et présente une surface d'implantation (58) supportant l'unité de soupape (44), à côté de laquelle dépasse vers le haut une partie faisant saillie (66) située aux côtés de l'unité de soupape (44), laquelle partie faisant saillie est équipée de moyens de détection (28, 28b), qui peuvent détecter au moins un état de fonctionnement de l'unité de soupape (44) placée au niveau de la surface d'implantation (58).
  11. Dispositif de commande selon l'une quelconque des revendications 8 à 10, caractérisé en ce que l'unité de soupape (44) est réalisée pour pouvoir commander une liaison fluidique entre deux des canaux principaux de fluide (33, 33a, 33d), sachant qu'elle est en mesure en particulier de relier entre eux au choix deux canaux principaux de fluide (33a, 33d) ou de séparer ces derniers l'un de l'autre.
  12. Dispositif de commande selon l'une quelconque des revendications 8 à 11, caractérisé en ce que l'unité de soupape (44) est une soupape à démarrage progressif chargée de la montée en pression progressive dans le canal principal de fluide (33).
  13. Dispositif de commande selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'au moins une unité de travail électrofluidique (14) du groupe modulaire relevant de la technique des fluides (6) est formée par une soupape à voies multiples (14a) pouvant être actionnée électriquement, sachant que la soupape à voies multiples (14a) est de manière appropriée du type précommandé équipé d'au moins une soupape pilote (16a).
  14. Dispositif de commande selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le groupe modulaire relevant de la technique des fluides (6) présente plusieurs modules relevant de la technique des fluides (53) alignés dans la direction axiale de l'axe principal d'appareil (4) et équipés respectivement d'au moins une unité de travail électrofluidique (14), lesquels modules sont traversés aussi bien par les canaux principaux de fluide (33) que par le bus électrique interne (25).
  15. Dispositif de commande selon la revendication 14, caractérisé en ce que plusieurs modules relevant de la technique des fluides (53) comportent respectivement une unité de distribution (54) traversée par les canaux principaux de fluide (33) et par le bus électrique interne (25) et au moins une unité de travail électrofluidique (14) montée sur l'unité de distribution (54), sachant que lesdits modules relevant de la technique des fluides (53) sont alignés avec leurs unités de distribution (54), et sachant que le groupe modulaire relevant de la technique des fluides (6) comprenant une unité de distribution (54) côté extrémité est installé au niveau du module de diagnostic (7).
EP10795241.8A 2010-12-11 2010-12-11 Dispositif de commande électrofluidique Not-in-force EP2606240B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/007564 WO2012076035A1 (fr) 2010-12-11 2010-12-11 Dispositif de commande électrofluidique

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EP2606240A1 EP2606240A1 (fr) 2013-06-26
EP2606240B1 true EP2606240B1 (fr) 2013-11-06

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KR (1) KR101764461B1 (fr)
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Publication number Priority date Publication date Assignee Title
EP3222855B1 (fr) * 2016-03-22 2018-11-14 FESTO AG & Co. KG Appareil de commande fluidique
DE102016217506A1 (de) * 2016-09-14 2018-03-15 Festo Ag & Co. Kg Fluidverteilervorrichtung
DE102020202577B4 (de) * 2020-02-28 2022-09-15 Festo Se & Co. Kg Ventilmodul, Ventilanordnung und Verfahren
GB2596863A (en) * 2020-07-10 2022-01-12 Norgen Ltd Diagnostic valve island

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CH683021A5 (de) * 1991-06-25 1993-12-31 Walter Ag Anordnung mit mehreren Magnetventilen, insbesondere für eine Ventilbatterie.
JP3590762B2 (ja) 2000-09-05 2004-11-17 Ｓｍｃ株式会社 位置検出機能を備えたマニホールドバルブ
DE20219497U1 (de) * 2002-12-17 2003-03-06 FESTO AG & Co., 73734 Esslingen Fluidtechnisches Steuergerät
DE50300580D1 (de) * 2003-04-01 2005-06-30 Festo Ag & Co Steuergerät
DE10316129B4 (de) 2003-04-03 2006-04-13 Festo Ag & Co. Diagnosemodul und Steuergerät für eine Ventilbatterie
DE10328422A1 (de) 2003-06-25 2005-01-27 Festo Ag & Co. Positionserfassungsvorrichtung sowie damit ausgestattete fluidtechnische Vorrichtung
WO2008101513A1 (fr) * 2007-02-22 2008-08-28 Festo Ag & Co. Kg Module d'interface pour la commande d'une unité à soupapes
DE502007001646D1 (de) * 2007-08-16 2009-11-12 Festo Ag & Co Kg Modularanordnung mit in einer Reihenrichtung aneinandergereihten Modulen, die wenigstens teilweise als Ventilmodule ausgebildet sind
US8074680B2 (en) * 2008-03-28 2011-12-13 Numatics, Incorporated Modular electrical bus system with built in ground circuit

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CN103339389B (zh) 2015-09-09
KR101764461B1 (ko) 2017-08-02
WO2012076035A1 (fr) 2012-06-14
EP2606240A1 (fr) 2013-06-26
KR20130143573A (ko) 2013-12-31
CN103339389A (zh) 2013-10-02

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