EP1863974B1 - Gritter for using in the winter - Google Patents

Gritter for using in the winter Download PDF

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Publication number
EP1863974B1
EP1863974B1 EP06723483.1A EP06723483A EP1863974B1 EP 1863974 B1 EP1863974 B1 EP 1863974B1 EP 06723483 A EP06723483 A EP 06723483A EP 1863974 B1 EP1863974 B1 EP 1863974B1
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EP
European Patent Office
Prior art keywords
spreading
scattering
vehicle according
storage container
vehicle
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
EP06723483.1A
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German (de)
French (fr)
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EP1863974A1 (en
Inventor
Felix Albertus Ignatius Lugtenberg
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Aebi Schmidt Nederland BV
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Aebi Schmidt Nederland BV
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Publication of EP1863974A1 publication Critical patent/EP1863974A1/en
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Publication of EP1863974B1 publication Critical patent/EP1863974B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
    • E01C19/203—Centrifugal spreaders with substantially vertical axis
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/207—Feeding the distribution means
    • E01C2019/2075—Feeding the distribution means with longitudinal conveyor belt
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/207—Feeding the distribution means
    • E01C2019/208—Feeding the distribution means with longitudinal auger

Definitions

  • the present invention relates to a spreader vehicle for winter service, comprising a carrier vehicle and a spreader constructed thereon, which comprises a spreader frame, a spreader hopper supported thereon, a spreader, a spreader discharging the spreader from the hopper, motorized conveyor, and a spreader metered with scattering material feeding metering device, wherein a controller is provided which controls the metering device in response to a predetermined spreading width, a predetermined spreading density and the driving speed of the scattering vehicle, wherein the scattering vehicle has a spreading material storage container weighing weighing device having a plurality of measuring points comprising measuring elements, via which the scattering substance reservoir is supported on the spreader frame.
  • Scattered vehicles in which the conveyor is designed in particular as a belt, chain or screw conveyor - if necessary.
  • the conveyor In multiple arrangement - are well known by their use on roads of all kinds, depending on the conditions of use as used for anti-smoothness scattering especially split, salt or a salt-split mixture, each dry or moistened, can be used.
  • the driver sets the spreading width and the spreading density (scattering quantity per unit area) on a control device arranged in the driver's cab.
  • it is also known to specify these two parameters continuously during a scattering operation in particular using position data of the scattering vehicle and of the meteorological situation
  • a scattering vehicle of the generic type ie with the features specified above is from the US-A-2001/0002036 known.
  • the actual spreading rate is determined and displayed to the driver (on a display). Taking this information into account, the driver can make adjustments to the spreader.
  • the object of the present invention is to provide a scattering vehicle of the type specified, with which even under unfavorable conditions and without the driver's involvement, the spread density requirements can be met with a high degree of accuracy.
  • the scattering vehicle according to the invention is accordingly characterized in combination with the generic features in that the on the metering device acting control comprises a correction unit, which determines at predetermined intervals the determined as a function of the predetermined spread, the predetermined spread density and the driving speed of the scattering vehicle raw setpoint of the metering device taking into account one of two measurements of the weighing device Corrected measured value difference, wherein the intervals for the recalibration of the metering device according to the invention are defined by correcting the raw setpoint value initially determined by the control by measured value differences of the weighing device.
  • the re-calibration of the metering device is then carried out if it can be deduced from the measurement results of the weighing device that since the last recalibration a certain amount of spreading material has been applied.
  • the raw setpoint which is determined by the control acting on the metering device as a function of a predetermined spread, a predetermined spread density and the driving speed of the scattering vehicle, checked regularly taking into account the actual amount of scattered material and, if necessary, corrected.
  • the actual within The amount of scattering substance (ie the actual scattering material throughput) applied to a given period of time is determined using the measured values of the weighing device via a measured value difference calculated from two measurements in each case. This value is compared with the calculated (desired) amount of scattering material which results from integration of the instantaneous nominal throughputs corresponding to the raw setpoint values of the dosing between the two relevant measurements.
  • a continuous recalibration of the metering device can be carried out in this way while evaluating a desired value / actual value comparison. Misdosing, for example, by solidification and / or clumping be stored in the reservoir stockpiled or caused by foreign matter in the scattering material, are detected in this way immediately; and the basic setting of the metering device corresponding to the raw set value is corrected in such a way that that the actual amount of scattered material after the correction again corresponds to the specification.
  • a plurality of measuring points are provided with associated measuring elements, is favorable in terms of accuracy of the measurement and also has further advantages (see below) Furthermore, it proves to be favorable that according to the present invention, the determination of the weight of the loaded scattering material Reservoir within the spreader itself, namely between the frame and carried by this spreading material reservoir. This allows a particularly sheltered housing of the measuring points or the measuring elements, which benefits the accuracy of measurement and in turn, the most accurate possible adherence to the predetermined spreading density affects low.
  • the dispensing device on the spreader frame - not on the scattering material reservoir - is suspended, there is a decoupling of the dispensing device of the scattering material reservoir. This can not affect the accuracy of the result of the weighing dynamic effects, such as can be caused by a rotating driven spreading plate of the dispensing device.
  • the metering device is designed in the form (at least) of a metering screw, wherein the controller controls the speed of the metering screw.
  • the present invention is not limited thereto; Rather, other dosing devices can certainly be used are used, for example, those based on the principle of a belt or a chain conveyor. If the metering device is designed as a metering screw or else in the form of a belt conveyor or a chain conveyor, the conveying device and the metering device can form a structural unit, according to a again preferred development of the invention; In this case, in other words, the scattering material already metered withdrawn from the scattering reservoir.
  • the present invention can be implemented in the same way in connection with such scattering vehicles, in which the conveyor first conveys the discharged from the reservoir scattering material into a buffer, from which the metering device is fed.
  • the control acting on the metering device must, of course, also act on the mechanical conveying device in order to keep the scattering material supply present in the buffer within predetermined limits.
  • the conveying device on the one hand and the metering device on the other hand are different, spatially separate assemblies, it is not absolutely necessary for the metering device used in the context of the present invention to be a motor-driven metering device; rather as a metering device, for example, a cross-sectionally variable executed section of a chute into consideration, in which case the upstream of the cross-sectionally variable executed section lying area of the chute could act as a buffer.
  • the control of the spreader comprises a plausibility module.
  • This triggers an error message - for example in the form of an acoustic signal and / or a corresponding display on the control panel of the scattering vehicle - if the determined deviation of the actual scattering material flow rate exceeds the given values for spreading width and spreading density as well as the driving speed of the scattering vehicle resulting target throughput and thus the correction of the raw setpoint of the metering device exceeds a certain level.
  • a warning signal is triggered.
  • an ongoing monitoring not only the total weight of the scattering substance reservoir resulting from the summation of the measured values at the individual measuring points, but rather also a determination of the load distribution over the individual measuring points-via a differentiated evaluation of the measured values of the individual measuring points.
  • the spreader 1 shown in the drawing is suitable to be built on a conventional carrier vehicle. Since this is well known in the prior art, it has been omitted to represent the host vehicle.
  • the spreader 1 comprises a spreading material reservoir 2 and a dispensing device 3.
  • the latter has a motorized about a substantially vertical axis rotatingly driven spreading plate 4 and a chute 5, by means of which the researcher passportde scattering material is supplied to the spreading plate 4, on.
  • a screw conveyor 6 In the region of the bottom of the scattering reservoir 2 extends a screw conveyor 6, the auger by means of a drive motor M is driven to rotate about an axis extending substantially in the longitudinal direction of the spreader 1 axis.
  • the screw conveyor 6 feeds the chute 5; he also represents a the spreading material from the reservoir 2 subtracting conveyor and a dispensing device 3 metered with scattering material charging metering device.
  • a control which controls the speed of the screw conveyor of the screw conveyor 6 in response to a predetermined spread, a predetermined spreading density and the driving speed of the scattering vehicle, wherein - depending on the equipment of each scattering vehicle - while the Scattering width and the scattering density (scattering amount per unit area) by the driver of the scattering vehicle to a arranged in the cab control unit or automatically during a scattering operation, especially taking into account a Streueoutenprogramms and using position data of the scattering vehicle and for the meteorological situation (temperature, humidity , Type and amount of precipitation) will give characteristic data.
  • the illustrated in the drawing spreader corresponds to the well-known prior art, so that can be dispensed with a more detailed explanation.
  • the spreader 1 comprises a spreader frame 7, which in turn comprises longitudinal beams 8 and cross member 9.
  • the scattering material reservoir 2 is supported, via four - each one measuring element forming - load cells 10.
  • a support frame 11 is fixedly connected to the spreading material reservoir 2, which has four support legs 12.
  • the load cells 10 are each arranged between a support leg 12 and a longitudinal member 8 of the spreader frame 7. Apart from the four load cells 12, there is no vertical support of the spreading material reservoir 2 on the spreader frame 7.
  • the four load cells 12 are part of a weighing device, by means of which the weight of the spreading material reservoir 2 is continuously determined during the scattering operation.
  • the difference between two weight measurements taken at a time interval gives the amount of scattering material applied between the two measurements, i. the actual scattering rate.
  • This value is processed in the controller controlling the speed of the auger to correct a raw setpoint of the auger speed in response to the actual actual conditions.
  • the dispensing device 3 is suspended.
  • the rear end 13 of the screw conveyor 6 projects with the outlet 14 arranged there over the upper opening of the chute 5, without, however, between the chute 5 and the Schnekken industrialer 6 is a load-absorbing connection. This does not exclude that, in order to avoid the ingress of impurities and / or moisture into the chute 5, a protective device, for example in the form of a bellows, is provided between the screw conveyor and the chute.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Road Paving Machines (AREA)

Description

Die vorliegende Erfindung betrifft ein Streufahrzeug für den Winterdienst, umfassend ein Trägerfahrzeug und ein darauf aufgebautes Streugerät, welches einen Streugerät-Rahmen, einen darauf abgestützten Streustoff-Vorratsbehälter, eine Ausbringeinrichtung, eine den Streustoff aus dem Vorratsbehälter abziehende, motorisch angetriebene Fördereinrichtung und eine die Ausbringeinrichtung dosiert mit Streustoff beschickende Dosiereinrichtung aufweist, wobei eine Steuerung vorgesehen ist, welche die Dosiereinrichtung in Abhängigkeit von einer vorgegebenen Streubreite, einer vorgegebenen Streudichte und der Fahrgeschwindigkeit des Streufahrzeuges steuert, wobei das Streufahrzeug eine den Streustoff-Vorratsbehälter wiegende Wiegeeinrichtung aufweist, welche eine Mehrzahl von Meßstellen mit Meßelementen umfaßt, über die sich der Streustoff-Vorratsbehälter auf dem Streugerät-Rahmen abstützt.The present invention relates to a spreader vehicle for winter service, comprising a carrier vehicle and a spreader constructed thereon, which comprises a spreader frame, a spreader hopper supported thereon, a spreader, a spreader discharging the spreader from the hopper, motorized conveyor, and a spreader metered with scattering material feeding metering device, wherein a controller is provided which controls the metering device in response to a predetermined spreading width, a predetermined spreading density and the driving speed of the scattering vehicle, wherein the scattering vehicle has a spreading material storage container weighing weighing device having a plurality of measuring points comprising measuring elements, via which the scattering substance reservoir is supported on the spreader frame.

Streufahrzeuge, bei denen die Fördereinrichtung insbesondere als Band-, Ketten- oder Schneckenförderer - ggfs. in Mehrfachanordnung - ausgeführt ist, sind durch ihren Einsatz auf Straßen aller Art allgemein bekannt, wobei je nach den Einsatzbedingungen als zur Glättebekämpfung verwendeter Streustoff insbesondere Split, Salz oder ein Salz-Split-Gemisch, jeweils trocken oder befeuchtet, zum Einsatz kommen kann. Bei herkömmlichen gattungsgemäßen Streufahrzeugen stellt der Fahrer dabei die Streubreite und die Streudichte (Streustoffmenge pro Flächeneinheit) an einem im Führerhaus angeordneten Bediengerät ein. Bekannt ist indessen auch, diese beiden Parameter während eines Streueinsatzes laufend automatisch vorzugeben, insbesondere unter Verwendung von Positionsdaten des Streufahrzeuges sowie von für die meteorologische SituationScattered vehicles, in which the conveyor is designed in particular as a belt, chain or screw conveyor - if necessary. In multiple arrangement - are well known by their use on roads of all kinds, depending on the conditions of use as used for anti-smoothness scattering especially split, salt or a salt-split mixture, each dry or moistened, can be used. In the case of conventional generic scattering vehicles, the driver sets the spreading width and the spreading density (scattering quantity per unit area) on a control device arranged in the driver's cab. However, it is also known to specify these two parameters continuously during a scattering operation, in particular using position data of the scattering vehicle and of the meteorological situation

(Temperatur, Feuchtigkeit, Art und Menge von Niederschlägen) charakteristischen Daten.(Temperature, humidity, type and amount of precipitation) characteristic data.

In dem Bewußtsein, daß einerseits eine zu geringe Streudichte die Wirksamkeit der Glättebekämpfung reduziert und daß andererseits eine zu hohe Streudichte sowohl unter Kosten- und auch unter Umweltgesichtspunkten nachteilig ist, wurde in den vergangenen Jahren intensiv an der Erforschung der optimalen Streudichte gearbeitet, so daß diese heutzutage in Abhängigkeit von der herrschenden meteorologischen Situation sehr genau (+/- 5%) ermittelt werden kann. Allerdings sind die bekannten gattungsgemäßen Streufahrzeuge trotz aller Bemühungen, das Streugerät über den gesamten Betriebsbereich zu eichen - vgl. hierzu im Zusammenhang mit einem Düngerstreugerät die EP 472855 A1 - in der Praxis häufig nicht in der Lage, exakt die den so ermittelten Vorgaben entsprechende optimale Streustoffmenge auszubringen. Vielmehr ergeben sich in der Praxis häufig erhebliche Abweichungen. Namentlich längere Stillstandszeiten des Streufahrzeuges mit beladenem Streustoff-Vorratsbehälter und längere Transportfahrten des Streufahrzeuges über unebene Straßen mit der Folge einer entsprechenden Verdichtung und/oder örtlichen Dehomogenisierung des Streustoffes in dem Vorratsbehälter (bis hin zur Brückenbildung) wirken sich nachteilig auf die Genauigkeit der Dosierung des auf die Fahrbahn aufgebrachten Streustoffes aus, weshalb bereits verschiedentlich eine Homogenisierung des in dem Streustoff-Vorratsbehälter bevorrateten Streustoffes durch motorisch angetriebene Rühr- und Mischeinrichtungen vorgeschlagen wurde. Solche haben sich in der Praxis indessen nicht bewährt.Aware that on the one hand too low spreading density reduces the effectiveness of the anti-slipperiness and that on the other hand a too high spreading density is disadvantageous both from a cost and environmental point of view, intensive work has been done in recent years on the research of the optimum spreading density, so that this Nowadays, depending on the prevailing meteorological situation, it can be determined very precisely (+/- 5%). However, despite all efforts to calibrate the spreader over the entire operating range, the known generic spreaders are - cf. this in connection with a fertilizer spreader the EP 472855 A1 - In practice, often not able to deploy exactly the optimal amount of scattered material corresponding to the specifications thus determined. On the contrary, considerable deviations often occur in practice. Especially prolonged downtime of the scattering vehicle with loaded spreading material reservoir and longer transport trips of the scattering vehicle on uneven roads with the result of a corresponding compression and / or local dehumidification of the scattering material in the reservoir (up to bridge formation) adversely affect the accuracy of the dosage of the roadway applied scattering substance, which is why several times a homogenization of the stockpiled in the scattering material storage material was proposed by motor-driven stirring and mixing devices. However, such have not proven themselves in practice.

In der DE 19908141 A1 ist vorgeschlagen worden, an einem Schleuderstreuer über in der Streugerätsteuerung hinterlegte Kennlinien für die Beziehung zwischen Drehzahl und Antriebsdrehmoment der Verteilscheibe und ausgebrachtem Massenstrom laufend den mittels der Verteilscheibe tatsächlich ausgebrachten Streugut-Massenstrom zu ermitteln und diesen über einen Abgleich mit dem Soll-Massenstrom zur Nacheichung der Dosiereinrichtung heranzuziehen. Nachteilig ist hierbei insbesondere die Beeinträchtigung der Genauigkeit der laufenden Nacheichung der Dosierung durch sich beispielsweise temperaturbedingt ändernde Reibungsverluste im Antrieb sowie in der Lagerung der Verteilscheibe.In the DE 19908141 A1 It has been proposed to determine on a centrifugal spreader via stored in the spreader control characteristics for the relationship between speed and drive torque of the distribution disc and discharged mass flow continuously distributed by means of distribution disc spreading material mass flow and this via an adjustment with the target mass flow for recalculation of Use metering device. The disadvantage here is in particular the impairment of the accuracy of the ongoing recalibration of the dosage by, for example, temperature-induced changes in friction losses in the drive and in the storage of the distribution disc.

Ein Streufahrzeug der gattungsgemäßen Art, d.h. mit den eingangs angegebenen Merkmalen ist aus der US-A-2001/0002036 bekannt. Unter Verwendung der von der Wiegeeinrichtung, welche den Streustoff-Vorratsbehälter wiegt, bereitgestellten Daten wird die tatsächliche Streurate ermittelt und dem Fahrer (auf einem Display) angezeigt. Unter Berücksichtigung dieser Informationen kann der Fahrer die Einstellungen des Streugeräts vornehmen.A scattering vehicle of the generic type, ie with the features specified above is from the US-A-2001/0002036 known. Using the data provided by the weighing device weighing the spreading material reservoir, the actual spreading rate is determined and displayed to the driver (on a display). Taking this information into account, the driver can make adjustments to the spreader.

Im Lichte des vorstehend dargelegten Standes der Technik besteht die Zielsetzung der vorliegenden Erfindung darin, ein Streufahrzeug der eingangs angegebenen Art zu schaffen, mit welchem sich auch unter ungünstigen Voraussetzungen und ohne Mitwirkung des Fahrers die Streudichte betreffende Vorgaben mit einem hohen Maß an Genauigkeit einhalten lassen.In the light of the prior art set out above, the object of the present invention is to provide a scattering vehicle of the type specified, with which even under unfavorable conditions and without the driver's involvement, the spread density requirements can be met with a high degree of accuracy.

Gelöst wird diese Aufgabenstellung gemäß der vorliegenden Erfindung durch das in Anspruch 1 angegebene Streufahrzeug. Das erfindungsgemäße Streufahrzeug zeichnet sich demgemäß in Kombination mit den gattungsbildenden Merkmalen dadurch aus, dass die auf die Dosiereinrichtung wirkende Steuerung eine Korrektureinheit umfaßt, die in vorbestimmten Intervallen den in Abhängigkeit von der vorgegebenen Streubreite, der vorgegebenen Streudichte und der Fahrgeschwindigkeit des Streufahrzeuges ermittelten Roh-Sollwert der Dosiereinrichtung unter Berücksichtigung einer aus zwei Messungen der Wiegeeinrichtung ermittelten Messwertdifferenz korrigiert, wobei die Intervalle für die erfindungsgemäße Nacheichung der Dosiereinrichtung durch Korrektur des von der Steuerung zunächst ermittelten Roh-Sollwerts durch Messwertdifferenzen der Wiegeeinrichtung definiert sind. Die Nacheichung der Dosiereinrichtung erfolgt demnach dann, wenn sich aus den Messergebnissen der Wiegeeinrichtung ableiten lässt, dass seit der letzten Nacheichung eine bestimmte Menge an Streustoff ausgebracht worden ist. Für Streufahrzeuge nach der vorliegenden Erfindung ist somit charakteristisch, daß der Roh-Sollwert, der von der auf die Dosiereinrichtung wirkenden Steuerung in Abhängigkeit von einer vorgegebenen Streubreite, einer vorgegebenen Streudichte und der Fahrgeschwindigkeit des Streufahrzeuges ermittelt wird, regelmäßig unter Berücksichtigung der tatsächlich ausgebrachten Streustoffmenge überprüft und ggfs. korrigiert wird. Zur Bestimmung der tatsächlich ausgebrachten Streustoffmenge wird dabei die Wiegeeinrichtung mit an mehreren Messstellen angeordneten Messelementen, über die sich der Streustoff-Vorratsbehälter auf dem Streugerät-Rahmen abstützt, genutzt, mittels derer der Streustoff-Vorratsbehälter regelmäßig während des Streueinsatzes gewogen wird, wobei die tatsächlich innerhalb eines vorgegebenen Zeitraumes ausgebrachte Streustoffmenge (d.h. der tatsächliche Streustoffdurchsatz) unter Verwendung der Messwerte der Wiegeeinrichtung über eine aus jeweils zwei Messungen errechnete Messwertdifferenz ermittelt wird. Dieser Wert wird verglichen mit der rechnerischen (Soll-)Streustoffmenge, die sich durch Integration der den Roh-Sollwerten der Dosierung zwischen den beiden betreffenden Messungen entsprechenden momentanen Solldurchsätze ergibt. Bei erfindungsgemäßen Streufahrzeugen kann auf diese Weise unter Auswertung eines Sollwert/Istwertvergleichs eine laufende Nacheichung der Dosiereinrichtung erfolgen. Fehldosierungen, die beispielsweise durch Verfestigungen und/oder Verklumpungen des in dem Vorratsbehälter bevorrateten Streustoffes oder durch Fremdkörper im Streustoff verursacht sein können, werden auf diese Weise umgehend erkannt; und die dem Roh-Sollwert entsprechende Grundeinstellung der Dosiereinrichtung wird derart korrigiert, daß die tatsächlich ausgebrachte Streustoffmenge nach der Korrektur wieder mit der Vorgabe übereinstimmt. Daß nach der Erfindung mehrere Meßstellen mit zugeordneten Meßelementen vorgesehen sind, ist günstig im Hinblick auf die Genauigkeit der Messung und weist darüber hinaus weitere Vorteile auf (s.u.) Ferner erweist sich als günstig, daß nach der vorliegenden Erfindung die Ermittlung des Gewichts des beladenen Streustoff-Vorratsbehälters innerhalb des Streugerätes selbst erfolgt, nämlich zwischen dessen Rahmen und dem von diesem getragenen Streustoff-Vorratsbehälter. Dies ermöglicht eine besonders geschützte Unterbringung der Meßstellen bzw. der Meßelemente, was der Meßgenauigkeit zugutekommt und im Ergebnis wiederum die möglichst genaue Einhaltung der vorgegebenen Streudichte günstig beeinflußt.This problem is solved according to the present invention by the scattering vehicle specified in claim 1. The scattering vehicle according to the invention is accordingly characterized in combination with the generic features in that the on the metering device acting control comprises a correction unit, which determines at predetermined intervals the determined as a function of the predetermined spread, the predetermined spread density and the driving speed of the scattering vehicle raw setpoint of the metering device taking into account one of two measurements of the weighing device Corrected measured value difference, wherein the intervals for the recalibration of the metering device according to the invention are defined by correcting the raw setpoint value initially determined by the control by measured value differences of the weighing device. The re-calibration of the metering device is then carried out if it can be deduced from the measurement results of the weighing device that since the last recalibration a certain amount of spreading material has been applied. For scatter vehicles according to the present invention is thus characteristic that the raw setpoint, which is determined by the control acting on the metering device as a function of a predetermined spread, a predetermined spread density and the driving speed of the scattering vehicle, checked regularly taking into account the actual amount of scattered material and, if necessary, corrected. To determine the actually applied quantity of scattering material while the weighing device is arranged at a plurality of measuring points measuring elements over which the scattering material reservoir is supported on the spreader frame, used by means of which the scattering material reservoir is weighed regularly during the scattering use, the actual within The amount of scattering substance (ie the actual scattering material throughput) applied to a given period of time is determined using the measured values of the weighing device via a measured value difference calculated from two measurements in each case. This value is compared with the calculated (desired) amount of scattering material which results from integration of the instantaneous nominal throughputs corresponding to the raw setpoint values of the dosing between the two relevant measurements. In scattering vehicles according to the invention, a continuous recalibration of the metering device can be carried out in this way while evaluating a desired value / actual value comparison. Misdosing, for example, by solidification and / or clumping be stored in the reservoir stockpiled or caused by foreign matter in the scattering material, are detected in this way immediately; and the basic setting of the metering device corresponding to the raw set value is corrected in such a way that that the actual amount of scattered material after the correction again corresponds to the specification. That according to the invention a plurality of measuring points are provided with associated measuring elements, is favorable in terms of accuracy of the measurement and also has further advantages (see below) Furthermore, it proves to be favorable that according to the present invention, the determination of the weight of the loaded scattering material Reservoir within the spreader itself, namely between the frame and carried by this spreading material reservoir. This allows a particularly sheltered housing of the measuring points or the measuring elements, which benefits the accuracy of measurement and in turn, the most accurate possible adherence to the predetermined spreading density affects low.

Indem nach einer bevorzugten Weiterbildung der Erfindung die Ausbringeinrichtung an dem Streugerät-Rahmen - nicht am Streustoff-Vorratsbehälter - aufgehängt ist, erfolgt eine Entkopplung der Ausbringeinrichtung von dem Streustoff-Vorratsbehälter. Hierdurch können dynamische Effekte, wie sie beispielsweise durch einen rotierend angetriebenen Streuteller der Ausbringeinrichtung hervorgerufen werden können, nicht die Genauigkeit des Ergebnisses der Wiegung beeinträchtigen.By according to a preferred embodiment of the invention, the dispensing device on the spreader frame - not on the scattering material reservoir - is suspended, there is a decoupling of the dispensing device of the scattering material reservoir. This can not affect the accuracy of the result of the weighing dynamic effects, such as can be caused by a rotating driven spreading plate of the dispensing device.

Gemäß einer anderen bevorzugten Weiterbildung der Erfindung ist die Dosiereinrichtung in Form (mindestens) einer Dosierschnecke ausgeführt, wobei die Steuerung die Drehzahl der Dosierschnecke steuert. Beschränkt ist die vorliegende Erfindung hierauf indessen nicht; vielmehr können durchaus auch andere Dosiereinrichtungen zum Einsatz kommen, beispielsweise solche, die auf dem Prinzip eines Band- oder eines Kettenförderers beruhen. Ist die Dosiereinrichtung als Dosierschnecke oder aber in Form eines Band- oder eines Kettenförderers ausgeführt, können, gemäß einer abermals bevorzugten Weiterbildung der Erfindung, die Fördereinrichtung und die Dosiereinrichtung eine bauliche Einheit bilden; in diesem Falle wird, mit anderen Worten, der Streustoff bereits dosiert aus dem Streustoff-Vorratsbehälter abgezogen. Dies ist günstig im Hinblick auf die Anzahl der Baugruppen und insbesondere auch unter Gesichtspunkten des Raumbedarfs. Zwingend ist dies jedoch nicht; denn die vorliegende Erfindung läßt sich in gleicher Weise im Zusammenhang mit solchen Streufahrzeugen umsetzen, bei denen die Fördereinrichtung den aus dem Vorratsbehälter abgezogenen Streustoff zunächst in einen Zwischenspeicher fördert, aus dem heraus die Dosiereinrichtung gespeist wird. Ersichtlich hat in einem solchen Fall die auf die Dosiereinrichtung wirkende Steuerung allerdings auch auf die mechanische Fördereinrichtung zu wirken, um den in dem Zwischenspeicher vorhandenen Streustoff-Vorrat innerhalb vorgegebener Grenzen zu halten. Handelt es sich bei der Fördereinrichtung einerseits und er Dosiereinrichtung andererseits um unterschiedliche, räumlich getrennte Baugruppen, braucht es sich bei der im Rahmen der vorliegenden Erfindung zum Einsatz kommenden Dosiereinrichtung im übrigen nicht zwingend um eine motorisch angetriebene Dosiereinrichtung zu handeln; vielmehr kommt als Dosiereinrichtung beispielsweise auch ein querschnittveränderlich ausgeführter Abschnitt einer Schütte in Betracht, wobei in diesem Fall der stromaufwärts des querschnittveränderlich ausgeführten Abschnitts liegende Bereich der Schütte als Zwischenspeicher wirken könnte.According to another preferred embodiment of the invention, the metering device is designed in the form (at least) of a metering screw, wherein the controller controls the speed of the metering screw. However, the present invention is not limited thereto; Rather, other dosing devices can certainly be used are used, for example, those based on the principle of a belt or a chain conveyor. If the metering device is designed as a metering screw or else in the form of a belt conveyor or a chain conveyor, the conveying device and the metering device can form a structural unit, according to a again preferred development of the invention; In this case, in other words, the scattering material already metered withdrawn from the scattering reservoir. This is favorable in terms of the number of modules and in particular also from the viewpoint of space requirements. However, this is not mandatory; because the present invention can be implemented in the same way in connection with such scattering vehicles, in which the conveyor first conveys the discharged from the reservoir scattering material into a buffer, from which the metering device is fed. However, in such a case, the control acting on the metering device must, of course, also act on the mechanical conveying device in order to keep the scattering material supply present in the buffer within predetermined limits. On the other hand, if the conveying device on the one hand and the metering device on the other hand are different, spatially separate assemblies, it is not absolutely necessary for the metering device used in the context of the present invention to be a motor-driven metering device; rather as a metering device, for example, a cross-sectionally variable executed section of a chute into consideration, in which case the upstream of the cross-sectionally variable executed section lying area of the chute could act as a buffer.

Besonders bevorzugt umfaßt die Steuerung des Streugeräts ein Plausibilitätsmodul. Dieses löst eine Fehlermeldung - beispielsweise in Form eines akustischen Signals und/oder einer entsprechenden Anzeige auf dem Bedienpult im Führerhaus des Streufahrzeuges - aus, wenn die ermittelte Abweichung des tatsächlichen Streustoffdurchsatzes von dem sich über die vorgegebenen Werte für Streubreite und Streudichte sowie die Fahrgeschwindigkeit des Streufahrzeugs ergebenden Solldurchsatz und somit die Korrektur des Roh-Sollwerts der Dosiereinrichtung ein bestimmtes Maß übersteigt.Particularly preferably, the control of the spreader comprises a plausibility module. This triggers an error message - for example in the form of an acoustic signal and / or a corresponding display on the control panel of the scattering vehicle - if the determined deviation of the actual scattering material flow rate exceeds the given values for spreading width and spreading density as well as the driving speed of the scattering vehicle resulting target throughput and thus the correction of the raw setpoint of the metering device exceeds a certain level.

Ferner kann gemäß einer weiteren bevorzugten Weiterbildung der Erfindung vorgesehen sein, daß bei Unterschreiten eines vorgebbaren Mindestwerts für das ermittelte Gewicht des Streustoff-Vorratsbehälters (samt Inhalt) von der Steuerung des Streugeräts ein Warnsignal ausgelöst wird. Dieses weist dem Fahrer des Streufahrzeuges auf den zur Neige gehenden Streustoff-vorrat hin, so daß der Fahrer dies bei der Festlegung der weiteren Streuroute und/oder der Vorgabe der Streuparameter während des weiteren Einsatzes berücksichtigen kann. Besonders günstig ist eine laufende Anzeige der in dem Streustoff-Vorratsbehälter noch vorhandenen Restmenge an Streustoff an dem Bedienpult im Fahrerhaus, so daß der Fahrer frühzeitig die Streuroute im Hinblick auf die erneute Befüllung des Streustoff-Vorratsbehälters im Depot abstimmen kann.Furthermore, it can be provided according to a further preferred embodiment of the invention that when falling below a predetermined minimum value for the determined weight of the scattering material reservoir (including contents) of the control of the spreader a warning signal is triggered. This points out to the driver of the scattering vehicle on the declining stock of litter, so that the driver can take this into account in the determination of the further spreading route and / or the specification of the scattering parameters during further use. Particularly favorable is an ongoing display of the remaining in the scattering material reservoir residual amount of scattering material on the control panel in the cab, so that the driver can early vote the spreading route with regard to the re-filling of the scattering reservoir in the depot.

Weiterhin kann gemäß einer abermals anderen bevorzugten Weiterbildung der Erfindung eine laufende Überwachung nicht nur des sich aus der Summierung der Meßwerte an den einzelnen Meßstellen ergebenden Gesamtgewichts des Streustoff-Vorratsbehälters erfolgen, sondern vielmehr - über eine differenzierte Auswertung der Meßwerte der einzelnen Meßstellen - auch eine Ermittlung der Lastverteilung auf die einzelnen Meßstellen. Dies ermöglicht es, laufend die Lage des Schwerpunkts des Streustoff-Vorratsbehälters zu bestimmen, um einerseits hieraus Rückschlüsse auf die Beschaffenheit des Streustoffes und/oder die Funktion der Fördereinrichtung ziehen und andererseits bei einer im Hinblick auf die Fahreigenschaften des Streufahrzeugs kritischen Schwertpunktverlagerung eine Warnung auslösen zu können. In diesem Zusammenhang erweist sich als vorteilhaft, wenn sich der Streustoff-Vorratsbehälter über vier Meßstellen auf dem Streugerät-Rahmen abstützt, da dies der vorstehend erläuterten differenzierten Auswertung entgegenkommt.Furthermore, according to yet another preferred embodiment of the invention, an ongoing monitoring not only the total weight of the scattering substance reservoir resulting from the summation of the measured values at the individual measuring points, but rather also a determination of the load distribution over the individual measuring points-via a differentiated evaluation of the measured values of the individual measuring points. This makes it possible to continuously determine the position of the center of gravity of the scattering reservoir to on the one hand draw conclusions on the nature of the scattering material and / or the function of the conveyor and on the other hand trigger a warning in relation to the driving characteristics of the scattering vehicle critical shift point can. In this context, it proves to be advantageous if the scattering material reservoir is supported by four measuring points on the spreader frame, since this accommodates the differentiated evaluation explained above.

Im folgenden wird die vorliegende Erfindung anhand eines in der Zeichnung veranschaulichten bevorzugten Ausführungsbeispiels näher erläutert. Dabei zeigt

Fig. 1
in Seitenansicht ein zum Aufbau auf einen herkömmliches Trägerfahrzeug geeignetes erfindungsgemäßes Streugerät und
Fig. 2
in rückwärtiger Ansicht das Streugerät nach Fig. 1.
In the following, the present invention will be explained in more detail with reference to a preferred embodiment illustrated in the drawing. It shows
Fig. 1
in side view a suitable for construction on a conventional carrier vehicle inventive spreader and
Fig. 2
in backward view the spreader behind Fig. 1 ,

Das in der Zeichnung dargestellte Streugerät 1 ist geeignet, auf ein herkömmliches Trägerfahrzeug aufgebaut zu werden. Da dies aus dem Stand der Technik hinlänglich bekannt ist, wurde darauf verzichtet, daß Trägerfahrzeug darzustellen.The spreader 1 shown in the drawing is suitable to be built on a conventional carrier vehicle. Since this is well known in the prior art, it has been omitted to represent the host vehicle.

Das Streugerät 1 umfaßt einen Streustoff-Vorratsbehälter 2 und eine Ausbringeinrichtung 3. Letztere weist einen motorisch um eine im wesentlichen vertikale Achse rotierend angetriebenen Streuteller 4 und eine Schütte 5, mittels derer der auszubringende Streustoff dem Streuteller 4 zugeführt wird, auf. Im Bereich des Bodens des Streustoff-Vorratsbehälters 2 erstreckt sich ein Schneckenförderer 6, dessen Förderschnecke mittels eines Antriebsmotors M um eine sich im wesentlichen in Längsrichtung des Streugeräts 1 erstreckende Achse drehend antreibbar ist. Der Schneckenförderer 6 beschickt die Schütte 5; er stellt zugleich eine den Streustoff aus dem Vorratsbehälter 2 abziehende Fördereinrichtung und eine die Ausbringeinrichtung 3 dosiert mit Streustoff beschickende Dosiereinrichtung dar. Im Hinblick auf die Funktion des Schneckenförderers 6 als Dosiereinrichtung ist eine Steuerung vorgesehen, welche die Drehzahl der Förderschnecke des Schneckenförderers 6 in Abhängigkeit von einer vorgegebenen Streubreite, einer vorgegebenen Streudichte und der Fahrgeschwindigkeit des Streufahrzeuges steuert, wobei - je nach der Ausstattung des jeweiligen Streufahrzeugs - dabei die Streubreite und die Streudichte (Streustoffmenge pro Flächeneinheit) durch den Fahrer des Streufahrzeugs an einem im Führerhaus angeordneten Bediengerät eingestellt oder aber während eines Streueinsatzes automatisch, insbesondere unter Berücksichtigung eines Streuroutenprogramms und unter Verwendung von Positionsdaten des Streufahrzeuges sowie von für die meteorologische Situation (Temperatur, Feuchtigkeit, Art und Menge von Niederschlägen) charakteristischen Daten vorgeben werden. In diesem Umfang entspricht das in der Zeichnung veranschaulichte Streugerät dem hinlänglich bekannten Stand der Technik, so daß auf eine weitergehende Erläuterung verzichtet werden kann.The spreader 1 comprises a spreading material reservoir 2 and a dispensing device 3. The latter has a motorized about a substantially vertical axis rotatingly driven spreading plate 4 and a chute 5, by means of which the auszubringende scattering material is supplied to the spreading plate 4, on. In the region of the bottom of the scattering reservoir 2 extends a screw conveyor 6, the auger by means of a drive motor M is driven to rotate about an axis extending substantially in the longitudinal direction of the spreader 1 axis. The screw conveyor 6 feeds the chute 5; he also represents a the spreading material from the reservoir 2 subtracting conveyor and a dispensing device 3 metered with scattering material charging metering device. In view of on the function of the screw conveyor 6 as a metering device, a control is provided which controls the speed of the screw conveyor of the screw conveyor 6 in response to a predetermined spread, a predetermined spreading density and the driving speed of the scattering vehicle, wherein - depending on the equipment of each scattering vehicle - while the Scattering width and the scattering density (scattering amount per unit area) by the driver of the scattering vehicle to a arranged in the cab control unit or automatically during a scattering operation, especially taking into account a Streueoutenprogramms and using position data of the scattering vehicle and for the meteorological situation (temperature, humidity , Type and amount of precipitation) will give characteristic data. To this extent, the illustrated in the drawing spreader corresponds to the well-known prior art, so that can be dispensed with a more detailed explanation.

Das Streugerät 1 umfaßt einen Streugerät-Rahmen 7, der seinerseits Längsträger 8 und Querträger 9 umfaßt. Auf dem Streugerät-Rahmen stützt sich der Streustoff-Vorratsbehälter 2 ab, und zwar über vier - jeweils ein Meßelement bildende - Kraftmeßdosen 10. Hierzu ist mit dem Streustoff-Vorratsbehälter 2 ein Stützrahmen 11 fest verbunden, der vier Stützfüße 12 aufweist. Die Kraftmeßdosen 10 sind jeweils zwischen einem Stützfuß 12 und einem Längsträger 8 des Streugerät-Rahmens 7 angeordnet. Außer über die vier Kraftmeßdosen 12 erfolgt keine vertikale Abstützung des Streustoff-Vorratsbehälters 2 auf dem Streugerät-Rahmen 7.The spreader 1 comprises a spreader frame 7, which in turn comprises longitudinal beams 8 and cross member 9. On the spreader frame, the scattering material reservoir 2 is supported, via four - each one measuring element forming - load cells 10. For this purpose, a support frame 11 is fixedly connected to the spreading material reservoir 2, which has four support legs 12. The load cells 10 are each arranged between a support leg 12 and a longitudinal member 8 of the spreader frame 7. Apart from the four load cells 12, there is no vertical support of the spreading material reservoir 2 on the spreader frame 7.

Die vier Kraftmeßdosen 12 sind Teil einer Wiegeeinrichtung, mittels derer während des Streueinsatzes laufend das Gewicht des Streustoff-Vorratsbehälters 2 ermittelt wird. Aus der Differenz zwischen zwei mit einem zeitlichen Abstand zueinander durchgeführten Gewichtsmessungen ergibt sich die Menge des zwischen den beiden Messungen ausgebrachten Streustoffes, d.h. der tatsächliche Streustoffdurchsatz. Dieser Wert wird wiederum, wie dies weiter oben in größerem Detail erläutert ist, in der die Drehzahl der Förderschnecke steuernden Steuerung verarbeitet, um einen Roh-Sollwert der Schneckendrehzahl in Abhängigkeit von den aktuellen, tatsächlichen Verhältnissen zu korrigieren.The four load cells 12 are part of a weighing device, by means of which the weight of the spreading material reservoir 2 is continuously determined during the scattering operation. The difference between two weight measurements taken at a time interval gives the amount of scattering material applied between the two measurements, i. the actual scattering rate. This value, in turn, as discussed above in more detail, is processed in the controller controlling the speed of the auger to correct a raw setpoint of the auger speed in response to the actual actual conditions.

Rückwärtig an dem Streugerät-Rahmen 7 ist die Ausbringeinrichtung 3 aufgehängt. Das rückwärtige Ende 13 des Schneckenförderers 6 ragt mit dem dort angeordneten Auslaß 14 über die obere Öffnung der Schütte 5, ohne daß allerdings zwischen der Schütte 5 und dem Schnekkenförderer 6 eine lastaufnehmende Verbindung besteht. Dies schließt nicht aus, daß, um das Eindringen von Verunreinigungen und/oder Feuchtigkeit in die Schütte 5 zu vermeiden, zwischen dem Schneckenförderer und der Schütte eine Schutzeinrichtung beispielsweise in Form eines Faltenbalgs vorgesehen ist.At the back of the spreader frame 7, the dispensing device 3 is suspended. The rear end 13 of the screw conveyor 6 projects with the outlet 14 arranged there over the upper opening of the chute 5, without, however, between the chute 5 and the Schnekkenförderer 6 is a load-absorbing connection. This does not exclude that, in order to avoid the ingress of impurities and / or moisture into the chute 5, a protective device, for example in the form of a bellows, is provided between the screw conveyor and the chute.

Zusätzlich zu der Ermittlung des Gesamtgewichts des Streustoff-Vorratsbehälters durch summarische Betrachtung der Meßwerte der vier Meßstellen erfolgt eine weiter oben erläuterte differenzierte Auswertung, um die momentane Lage des Schwerpunktes des Streustoff-Vorratsbehälters zu berücksichtigen.In addition to the determination of the total weight of the scattering material reservoir by a summary observation of the measured values of the four measuring points, a differentiated evaluation is provided above in order to take into account the instantaneous position of the center of gravity of the scattering substance reservoir.

Claims (9)

  1. A spreading vehicle for winter road maintenance services, comprising a carrier vehicle and a spreading unit (1) built thereon, which has a spreading unit frame (7), a spreading material storage container (2) supported thereon, a scattering apparatus (3), a motorised conveying apparatus which draws the spreading material out of the storage container and a metering apparatus which loads the scattering apparatus with spreading material in a metered manner, wherein a control system is provided, which controls the metering apparatus depending on a specified spreading width, a specified spreading density and the driving speed of the spreading vehicle, wherein the spreading vehicle has a weighing apparatus which weighs the spreading material storage container and comprises a plurality of measurement points having measurement elements by means of which the spreading material storage container (2) is supported on the spreading unit frame (7),
    characterised in that
    the control system comprises a correction unit which is suitable for correcting at predefined intervals, which are defined by measured value differences of the weighing apparatus, the raw setpoint value of the metering apparatus determined depending on the specified spreading width, the specified spreading density and the driving speed of the spreading vehicle, taking into account a measured value difference determined from two measurements of the weighing apparatus.
  2. The spreading vehicle according to Claim 1,
    characterised in that
    the measurement elements are configured as force capsules (12).
  3. The spreading vehicle according to Claim 1 or 2,
    characterised in that
    exactly four measurement points are provided.
  4. The spreading vehicle according to any one of Claims 1 to 3,
    characterised in that
    the scattering apparatus (3) is suspended on the spreading unit frame (7).
  5. The spreading vehicle according to any one of Claims 1 to 4,
    characterised in that
    the conveying apparatus and the metering apparatus form a structural unit.
  6. The spreading vehicle according to any one of Claims 1 to 5,
    characterised in that
    the control system of the spreading unit comprises a plausibility module, which triggers an error message if the determined deviation of the actual spreading material throughput from the setpoint throughput exceeds a certain specified amount.
  7. The spreading vehicle according to any one of Claims 1 to 6,
    characterised in that
    the control system of the spreading unit triggers a warning signal if the weight of the spreading material storage container falls below a specifiable minimum value.
  8. The spreading vehicle according to any one of Claims 1 to 7,
    characterised in that
    a continuous display of the remaining amount of spreading material in the storage container, which is determined from the measured weight of the spreading material storage container, takes place on an operating panel in the driver's cab.
  9. The spreading vehicle according to any one of Claims 1 to 8,
    characterised in that
    a differentiated evaluation of the measured values of the individual measurement elements takes place to determine the load distribution on the individual measurement points.
EP06723483.1A 2005-03-19 2006-03-17 Gritter for using in the winter Not-in-force EP1863974B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510012886 DE102005012886A1 (en) 2005-03-19 2005-03-19 Scatter vehicle for winter service
PCT/EP2006/002439 WO2006099992A1 (en) 2005-03-19 2006-03-17 Gritter for using in the winter

Publications (2)

Publication Number Publication Date
EP1863974A1 EP1863974A1 (en) 2007-12-12
EP1863974B1 true EP1863974B1 (en) 2013-08-07

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EP (1) EP1863974B1 (en)
DE (1) DE102005012886A1 (en)
DK (1) DK1863974T3 (en)
WO (1) WO2006099992A1 (en)

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DE202008018012U1 (en) 2008-09-13 2011-04-07 Fiedler Maschinenbau Und Technikvertrieb Gmbh Control panel for a littering vehicle with an integrated operating and display unit
DE102010037535A1 (en) 2010-09-14 2012-03-15 Fiedler Maschinenbau Und Technikvertrieb Gmbh Programmable one-hand control console with control program for vehicle as a universal implement carrier for different attachments
DE202012101647U1 (en) 2012-05-04 2012-05-22 Gmeiner Gmbh Winter gritting equipment
WO2015192868A1 (en) 2014-06-16 2015-12-23 G. Lufft Mess- Und Regeltechnik Gmbh Control device for a spreading vehicle
CN105862650B (en) * 2016-05-27 2017-07-18 江苏天普星环境科技有限公司 A kind of vehicle-mounted salt-dusting device of flexible anti-condensation of all-hydraulic automatic adjustable
DE102017109644A1 (en) * 2017-05-05 2018-11-08 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Trailed distributor
DE102020116598A1 (en) 2020-06-24 2021-12-30 Aebi Schmidt Nederland Bv Winter service spreader

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DE9420713U1 (en) * 1994-12-24 1995-02-16 Dammann & Westerkamp Equipment for the preparation of brine
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WO2000061871A1 (en) * 1999-04-09 2000-10-19 Meyer Bradley O Device and method for monitoring the amount of material applied to a surface

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DK1863974T3 (en) 2013-08-26
EP1863974A1 (en) 2007-12-12
DE102005012886A1 (en) 2006-09-28
WO2006099992A1 (en) 2006-09-28

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