EP2844804B1 - Unité de controle d'une machine de construction - Google Patents

Unité de controle d'une machine de construction Download PDF

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Publication number
EP2844804B1
EP2844804B1 EP13717715.0A EP13717715A EP2844804B1 EP 2844804 B1 EP2844804 B1 EP 2844804B1 EP 13717715 A EP13717715 A EP 13717715A EP 2844804 B1 EP2844804 B1 EP 2844804B1
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EP
European Patent Office
Prior art keywords
signals
control
construction machine
display unit
monitoring unit
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.)
Active
Application number
EP13717715.0A
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German (de)
English (en)
Other versions
EP2844804A1 (fr
EP2844804B2 (fr
Inventor
Martin Werner
Timo Loew
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.)
Bomag GmbH and Co OHG
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Bomag GmbH and Co OHG
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Filing date
Publication date
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Application filed by Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP2844804A1 publication Critical patent/EP2844804A1/fr
Publication of EP2844804B1 publication Critical patent/EP2844804B1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements

Definitions

  • the present application relates to a device for operating a construction machine, comprising a control panel with a number of operating elements for actuating actuators of the construction machine in order to carry out the desired functions of the construction machine, wherein the control panel generates first signals related to the actuation of the actuators, a control system. and control unit for controlling the device, wherein the control and monitoring unit which converts the first signals into actuation signals, with which the actuators can be actuated and the first signals are transmitted by means of first transmission means from the control panel to the control and monitoring unit, and a display unit with which in normal operation the function currently performed by the construction machine can be visualized, the first signals and / or the actuation signals being transmitted to the display unit with second transmission means.
  • Such construction machines are so-called stabilizers or recyclers, with which floor sections such as carriageways can be processed.
  • These construction machines have a control panel in which a number of controls are arranged, such as levers, push buttons, potentiometers or rotary switches.
  • a construction machine typically uses a number of different actuators, such as hydraulic cylinders, pneumatic cylinders, or electric motors, all of which are actuated from the control panel.
  • actuators such as hydraulic cylinders, pneumatic cylinders, or electric motors, all of which are actuated from the control panel.
  • a display unit is provided, on which the function currently being performed is visually displayed.
  • a construction machine with such a display unit is for example in the EP 1 959 056 A2 described.
  • the first signals generated by the operating elements must be converted into different actuation signals in order to be able to actuate the actuators.
  • the actuating signals are pressure signals of the hydraulic fluid used, whereas in electric motors corresponding electrical signals act as actuating signals.
  • a control and monitoring unit is provided which converts the first signals generated by the control panel into the respectively required actuation signals.
  • the control and monitoring unit does not necessarily have to directly also change the type of signal, for example from an electrical signal to a pressure signal, but can retain the nature of the signal.
  • the first signals are usually electrical signals.
  • the control and monitoring unit can process the first signals in such a way that a conversion unit is triggered with the electrical actuation signals, which generates, for example, the pressure signals with which hydraulic cylinders can be actuated.
  • the control and control unit converts the first signals indirectly in actuation signals usable by the actuators, since the type of signal still needs to be changed.
  • the actuator is an electric motor
  • the electrical first signal can be used directly to control the electric motor, so that no conversion of the signal type is necessary at all.
  • the first signals are transmitted by means of first transmission means from the control panel to the control and monitoring unit, which are usually designed as a cable, but the transmission means can also operate wirelessly.
  • the actuating signals generated by the control and monitoring unit and / or the first signals are used, the latter may need to be prepared for the display unit.
  • the actuation signals and / or the first signals are transmitted by second transmission means from the control and monitoring unit to the display unit.
  • the actuators can no longer or no longer be activated and operated as desired.
  • the construction machine can not be used properly in this case.
  • the construction machines mentioned above are used in particular in road construction. If asphalt is used to make the pavement, it must be used be processed at a certain temperature. The asphalt is usually brought to the construction site with a large number of trucks of the given temperature, but the temperature can not be maintained for a longer period of time. The provided asphalt can thus be processed only within a narrow time window. If the construction machine no longer fully functional due to a disturbance of the first transmission means, the time window can no longer be complied with and the asphalt can no longer be processed, which entails a high economic damage. In these circumstances, maintaining the proper use of the construction machine is of great importance. Object of the present invention is therefore to provide a construction machine of the type mentioned, which can be used functionally even if the first transmission means are disturbed.
  • the object is achieved in that in the case of failure of the first signals or the first transmission means using the display unit based on the activation of the actuators second signals are generated, which are transmitted by the second transmission means to the control and monitoring unit and the controller - And control unit are converted into actuation signals.
  • the embodiment of the device according to the invention makes it possible to use the construction machines functionally even if the first transmission means are disturbed and thus no usable first signals are transmitted to the control and monitoring unit. If cables are used as the first means of transmission, then, due to the harsh environmental conditions in which the construction machines are used, due to corrosion and / or thermal stresses, damage to the cables can quickly occur.
  • the first transmission means are not damaged, the first signals are still not usable, for example, when the control panel, which generates the first signals, no longer works properly.
  • the control and monitoring unit checks and coordinates the signals and decides whether the first signals are sufficiently plausible or not. If not, the second signals generated by the display unit are used to operate the construction machine. By converting the first or second signal, it is to be understood that these signals are usable to drive the actuators. A compelling conversion is not required, for example, when an electric motor can be controlled directly with the electrical first and / or second signals. In this case, the task of the control and monitoring unit is limited to checking the plausibility of the first signal and, depending on the result of the check, the provision of a second signal.
  • a redundancy is thus created which also makes it possible to operate the construction machines functionally with the aid of the display unit when the first signals no longer arrive in a usable state at the control and monitoring unit.
  • the display units usually have pushbutton switches or similar operating elements which, in the event of a fault, use the first signals and / or the first transmission means to operate the construction machine can be.
  • the reliability of the construction machine is thus increased.
  • a contribution is made to the scheduled processing of the ground section, for example, the roadway, so that unscheduled delays and the associated additional costs are avoided or at least significantly reduced.
  • a further development of the device according to the invention is characterized in that the display unit has one or more operating elements of the control panel corresponding operating segments.
  • the construction machine operator does not need to change if the first transmission means are disturbed. He can immediately control the construction machine with the display unit, which he can use analogous to the control panel. This makes a contribution to operational safety, since the likelihood of incorrect operation is reduced.
  • the operating segments comprise pushbutton switches, levers and / or rotary switches.
  • This embodiment can provide an image corresponding largely to the control panel so that not only the functions but also the manner of operation of the control panel corresponds to the operation of the display unit. In this respect, the differences in operation between the control panel and the display unit are reduced , which in turn prevents incorrect operation.
  • the display unit displays one or more graphics icons corresponding to one or more controls, the display unit assigning the touch switches, levers, and / or rotary switches to the graphics icons.
  • the assignment can be realized by lines or arrows.
  • the display unit can be made compact, since the available push-button, lever and / or rotary switch can be assigned to several graphic symbols that are displayed offset in time according to the desired function. The graphic symbols can be easily changed and adapted to the respective desired function. Consequently, it is possible to display a plurality of functions by means of the display unit according to the invention and to assign a few key switches, rotary switches and / or levers.
  • the display unit according to the invention has a touch-sensitive surface.
  • segments of the surface are stored with the respectively executable function representing graphic symbols.
  • the functionality of the display unit is increased again, since the surface can be used directly as a switch.
  • the touch-sensitive surface may be configured so that rotary switches can be simulated. In this respect, it is no longer necessary to provide physically present push-button switch and rotary switch in the display unit. Almost all of the construction machine executable Functions are displayed and selected by means of the display unit. The flexibility of the display unit is again significantly increased and increased ease of use.
  • the second transmission means are configured as a CAN bus.
  • a CAN bus has the advantage that a multiplicity of signals can be transmitted between the control and monitoring unit and the display unit without the need for a complicated cable harness with a large overall cable length.
  • Another aspect of the present invention relates to a construction machine comprising a device according to one of the previous embodiments.
  • the advantages and technical effects set forth for the device apply equally to the construction machine.
  • the step of visualizing the function currently being performed by the construction machine is performed only in the normal operation, while the steps of generating on the drive the actuators related second signals and the transmission of the second signals to the control and monitoring unit are preferably executed only in case of disturbance of the first transmission means. The remaining steps are carried out in both modes of operation as far as possible.
  • the control and monitoring unit also undertakes the task of checking the plausibility of the first signals and possibly causing the display unit to generate plausible second signals if the construction machine can no longer be operated correctly with the first signals.
  • FIG. 1 a construction machine 10 is shown, which can be operated with a device 18 according to the invention for operating the construction machine 10, which in FIG. 1 is not shown (see FIGS. 2 and 3 ).
  • the stabilizer comprises a work roll which is in FIG. 1 is not visible because it is surrounded by a protective hood 14.
  • the work roll has a substantially cylindrical shape and is mounted rotatably about its cylinder axis on the construction machine 10 and can be adjusted in height in the direction of the arrow P 1 .
  • the construction machine 10 comprises a drive unit 16 with which the construction machine 10 itself moves and the work roll can be rotated.
  • This position of the work roll is assumed, for example, in the transport mode of the construction machine 10, whereas the work roll is lowered in the working mode or tillage mode down and in the bottom portion 12 with the desired Depth dips.
  • the construction machine 10 is moved over the bottom portion 12 in the direction of the arrow P 2 (forward direction).
  • FIG. 2 is an inventive device 18 for operating a construction machine 10, for example, the in FIG. 1 illustrated stabilizer, shown in normal operation.
  • the device 18 comprises a control panel 20 in which a number of control elements 22 are arranged.
  • the controls 22 may include push buttons, levers, potentiometers, rotary switches, and the like.
  • the control panel 20 is connected via first transmission means 24 to a control and monitoring unit 26, which in turn communicates via second transmission means 28 with a display unit 30.
  • the first and second transmission means 24, 28 are usually implemented as cables or CAN buses, but wireless design is also possible.
  • the control and monitoring unit 26 is connected to an actuator 34 by suitable third transmission means 32.
  • the actuator 34 is designed as a hydraulic cylinder 36, which has an actuator 38, here a valve 40, which is controllable by the control and monitoring unit 26.
  • Another actuator 34 may be the drive unit 16.
  • the construction machine operator actuates the operating elements 22 of the control panel 20 in order to initiate the desired function of the construction machine 10, for which purpose the respective actuators 34 are activated accordingly.
  • the control panel 20 generates first signals S 1 related to the actuation of the actuators 34, which are transmitted to the control and monitoring unit 26 by means of the first transmission means 24.
  • the control and monitoring unit 26 converts the first signals S 1 into actuation signals S B , with which the actuators 34 can be initiated.
  • the first signals S 1 may be formed, for example, as analog or digital electrical signals, while in the illustrated case the actuating signals S B serving to actuate the valve 40 must be present at the valve 40 as hydraulic or pneumatic signals.
  • the actuation signals S B have to leave the control and monitoring unit 26 as hydraulic or pneumatic.
  • This conversion unit can be integrated in the control and monitoring unit 26. Accordingly, the third transmission means 32 are formed as a hydraulic or pneumatic line.
  • the display unit 30 has a plurality of operating segments 44, which comprise, for example, push-buttons, levers and / or rotary switches which surround the display section 42 are arranged.
  • the control and monitoring unit 26 forwards the first signals S 1 to the display unit 30. Should it be necessary, the control and monitoring unit 26, the first signals S 1 prepare so that the display unit 30 can process them.
  • the display unit 30 visualizes the selected function that is being executed by the construction machine 10. Depending on the type of actuation signals S B , these can also be used by the display unit 30 to represent the currently performed by the construction machine 10 function.
  • FIG. 3 the case of a fault of the first transmission means 24 is shown, for example caused by breakage or damage of the cable, so that no or no correct communication between the control panel 20 and the control and monitoring unit 26 is possible.
  • the control and monitoring unit 26 displays the fault with two exclamation points and the display unit 30 switches to the fault mode.
  • the display unit 30 displays one or more graphics icons 46 in the disturbance mode, which are modeled on the control elements 22 of the control panel 20.
  • a rotary switch which is identified in the control panel 20 with a dashed circle, displayed by means of a corresponding graphic symbol 46 in the display section 42.
  • the selection of the desired operating element 22 may have been made by the construction machine operator in a previous step, not shown, in which the display unit 30 displays all control elements 22 present in the operating panel 20 with the corresponding graphic symbols 46 and assigns the operating segments 44 to the display unit 30.
  • the various selectable positions of the operating element 22 are modeled on the graphic symbol 46 and assigned to the operating segments 44 via dashed lines. Will the construction machine operator now bring the graphic symbol 46 in a certain position, he actuates the corresponding control segment 44. In this way, second signals S 2 are generated, which are transmitted via the second transmission means 28 to the control and monitoring unit 26, where they instead of the disturbed first signals S 1 are converted into the corresponding actuation signals S B and whereby the actuator 34 is driven as if the construction machine operator would have actuated the corresponding control elements 22 of the control panel 20.

Claims (8)

  1. Dispositif de commande d'un engin de chantier (10), comprenant:
    - un pupitre de commande (20) comprenant plusieurs éléments de commande (22) pour la commande d'actionneurs (34) de l'engin de chantier (10), pour effectuer les fonctions désirées de l'engin de chantier (10), le pupitre de commande (20) générant des premiers signaux (S1) relatifs à l'actionnement des actionneurs (34),
    - une unité de contrôle et de surveillance (26) pour contrôler le dispositif, l'unité de contrôle et de surveillance (26) convertissant les premiers signaux (S1) en signaux d'actionnement (SB) au moyen desquels les actionneurs (34) peuvent être actionnés et les premiers signaux (S1) étant transmis du pupitre de commande (20) à l'unité de contrôle et de surveillance (26) en utilisant des premiers moyens de transmission (24), et
    - une unité d'affichage (30) au moyen de laquelle la fonction en cours d'exécution par l'engin de chantier (10) peut être visualisée en fonctionnement normal, les premiers signaux (S1) et/ou les signaux d'actionnement (SB) étant transmis à l'unité d'affichage (30) en utilisant des seconds moyens de transmission (28),
    caractérisé en ce que
    le dispositif est conçu de telle sorte que, en cas de perturbation des premiers signaux (S1) ou des premiers moyens de transmission (24), des seconds signaux (S2) en relation avec l'actionnement des actionneurs (34) sont générés en utilisant l'unité d'affichage (30), lesdits seconds signaux étant transmis à l'unité de contrôle et de surveillance (26) au moyen des seconds moyens de transmission (28) et étant convertis en signaux d'actionnement (SB) au moyen de l'unité de contrôle et de surveillance (26).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'unité d'affichage (30) comprend des segments de commande (44) correspondant à l'un ou à plusieurs des éléments de commande (22) du pupitre de commande (20).
  3. Dispositif selon la revendication 2,
    caractérisé en ce que
    les segments de commande (44) comprennent des interrupteurs à touche, des leviers et/ou des commutateurs rotatifs.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    l'unité d'affichage (30) affiche un ou plusieurs symboles graphiques (46) qui correspondent à un ou plusieurs éléments de commande (22), l'unité d'affichage (30) attribuant les interrupteurs à touche, les leviers et/ou les commutateurs rotatifs aux symboles graphiques (46).
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité d'affichage (30) comprend une surface fonctionnant par effleurement.
  6. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les seconds moyens de transmission (28) sont configurés en bus CAN.
  7. Engin de chantier (10) comprenant un dispositif selon l'une quelconque des revendications précédentes.
  8. Procédé de commande d'un engin de chantier (10) selon la revendication 7, comprenant les étapes suivantes:
    - génération de premiers signaux (S1) relatifs à l'actionnement des actionneurs (34) au moyen du pupitre de commande (20), le pupitre de commande (20) comprenant plusieurs éléments de commande (22) pour la commande d'actionneurs (34) de l'engin de chantier (10) pour réaliser les fonctions désirées de l'engin de chantier (10),
    - transmission des premiers signaux (S1) du pupitre de commande (20) à l'unité de contrôle et de surveillance (26) en utilisant des premiers moyens de transmission (24),
    - conversion des premiers signaux (S1) en signaux d'actionnement (SB) au moyen d'une unité de contrôle et de surveillance (26), les actionneurs (34) étant actionnés par les signaux d'actionnement (SB),
    - transmission des premiers signaux (S1) et/ou des signaux d'actionnement (SB) à l'unité d'affichage (30) en utilisant des seconds moyens de transmission (28),
    - visualisation de la fonction en cours d'exécution par l'engin de chantier (10) en fonctionnement normal par une unité d'affichage (30), ou
    - génération de seconds signaux (S2) en relation avec l'actionnement des actionneurs (34) en cas de perturbation des premiers moyens de transmission (24) en utilisant l'unité d'affichage (30),
    - transmission des seconds signaux (S2) à l'unité de contrôle et de surveillance (26) en utilisant les seconds moyens de transmission, et conversion en signaux d'actionnement (SB) au moyen de l'unité de contrôle et de surveillance (26) en cas de perturbation des premiers signaux (S1) ou des premiers moyens de transmission (24), l'unité de contrôle et de surveillance (26) provoquant la génération par l'unité d'affichage (30) des seconds signaux (S2) en cas de perturbation des premiers signaux (S1).
EP13717715.0A 2012-05-04 2013-04-12 Unité de controle d'une machine de construction Active EP2844804B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012009000A DE102012009000A1 (de) 2012-05-04 2012-05-04 Bedienelement einer Baumaschine
PCT/EP2013/001082 WO2013164064A1 (fr) 2012-05-04 2013-04-12 Élément de commande d'un engin de chantier

Publications (3)

Publication Number Publication Date
EP2844804A1 EP2844804A1 (fr) 2015-03-11
EP2844804B1 true EP2844804B1 (fr) 2016-12-21
EP2844804B2 EP2844804B2 (fr) 2020-01-08

Family

ID=48143242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13717715.0A Active EP2844804B2 (fr) 2012-05-04 2013-04-12 Unité de controle d'une machine de construction

Country Status (4)

Country Link
EP (1) EP2844804B2 (fr)
CN (1) CN104350214B (fr)
DE (1) DE102012009000A1 (fr)
WO (1) WO2013164064A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3715969A1 (fr) 2019-03-26 2020-09-30 Wirtgen GmbH Machine de construction dotée d'un dispositif de commande de la machine de construction et procédé de commande d'une machine de construction

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GB2573509B (en) * 2018-04-26 2020-09-02 Caterpillar Inc Method and system for providing display redundancy on a machine

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DE9301031U1 (de) 1993-01-26 1994-05-26 Beilhack Maschf Martin Bedienpult für Straßendienstfahrzeuge, insbesondere für den Winterdienst geeignete Fahrzeuge
EP0790353A1 (fr) 1996-02-17 1997-08-20 ABG Allgemeine Baumaschinen-Gesellschaft mbH Finisseuse
DE202006008543U1 (de) 2006-05-26 2006-09-14 Weber Maschinentechnik Gmbh Vorrichtung zum Überwachen, Kontrollieren und/oder Steuern von Baumaschinen
EP1627774B1 (fr) 2004-07-27 2007-09-12 Joseph Voegele AG Engin de chantier avec pupitre de commande
EP1935752A1 (fr) 2006-12-22 2008-06-25 J.C. Bamford Excavators Limited Machine de travail
EP1959056B1 (fr) 2007-02-17 2012-10-24 Wirtgen GmbH Machine de construction, en particulier machine de construction de chaussées

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JP5764310B2 (ja) * 2010-10-27 2015-08-19 ヤンマー株式会社 動力伝達装置

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
DE9301031U1 (de) 1993-01-26 1994-05-26 Beilhack Maschf Martin Bedienpult für Straßendienstfahrzeuge, insbesondere für den Winterdienst geeignete Fahrzeuge
EP0790353A1 (fr) 1996-02-17 1997-08-20 ABG Allgemeine Baumaschinen-Gesellschaft mbH Finisseuse
EP1627774B1 (fr) 2004-07-27 2007-09-12 Joseph Voegele AG Engin de chantier avec pupitre de commande
DE202006008543U1 (de) 2006-05-26 2006-09-14 Weber Maschinentechnik Gmbh Vorrichtung zum Überwachen, Kontrollieren und/oder Steuern von Baumaschinen
EP1935752A1 (fr) 2006-12-22 2008-06-25 J.C. Bamford Excavators Limited Machine de travail
EP1959056B1 (fr) 2007-02-17 2012-10-24 Wirtgen GmbH Machine de construction, en particulier machine de construction de chaussées

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3715969A1 (fr) 2019-03-26 2020-09-30 Wirtgen GmbH Machine de construction dotée d'un dispositif de commande de la machine de construction et procédé de commande d'une machine de construction
DE102019107800A1 (de) * 2019-03-26 2020-10-01 Wirtgen Gmbh Baumaschine mit einer Vorrichtung zur Steuerung der Baumaschine und Verfahren zur Steuerung einer Baumaschine

Also Published As

Publication number Publication date
CN104350214A (zh) 2015-02-11
DE102012009000A1 (de) 2013-11-07
EP2844804A1 (fr) 2015-03-11
EP2844804B2 (fr) 2020-01-08
CN104350214B (zh) 2017-07-21
WO2013164064A1 (fr) 2013-11-07

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