EP4150160A1 - Räumvorrichtung und pistenpflegefahrzeug - Google Patents
Räumvorrichtung und pistenpflegefahrzeugInfo
- Publication number
- EP4150160A1 EP4150160A1 EP21722182.9A EP21722182A EP4150160A1 EP 4150160 A1 EP4150160 A1 EP 4150160A1 EP 21722182 A EP21722182 A EP 21722182A EP 4150160 A1 EP4150160 A1 EP 4150160A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clearing
- blade
- actual
- blade load
- snow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
- E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
- E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails
Definitions
- the invention relates to a clearing device for a snow grooming vehicle, the clearing device having a clearing blade for processing a surface and an adjusting device for spatially controlling the clearing blade relative to the vehicle, the adjusting device being designed to set a position and / or a location of the clearing blade relative to to change the surface.
- the invention also relates to a snow grooming vehicle with such a clearing device.
- Such a clearing device is known from a PistenBully 600 from the applicant.
- the PistenBully 600 is a snow grooming vehicle and has a clearing device attached to the front with a clearing blade which is detachably attached to a front support.
- the position and / or location of the clearing blade can be changed relative to the surface, in particular by raising, lowering, tilting or tilting the clearing blade.
- electrohydraulic actuators are provided which are controlled from the driver's cab via an actuating element in the form of a joystick.
- the position and / or location of the clearing blade is changed by the driver of the snow grooming vehicle moving and holding the joystick accordingly. This operation is relatively complex and requires skill and concentration on the part of the driver of the snow grooming vehicle when operating the joystick.
- the object of the invention is to create a clearing device and a snow grooming vehicle of the type mentioned at the outset, which enable simplified operation and, in particular, automated operation regardless of the skill or concentration of the user.
- the clearing device has a detection device for detecting an actual plow load of the plow blade and a control unit, the control unit being designed to control the adjusting device as a function of the actual plow load for the purpose of changing the actual Blade loading by changing the position and / or location of the blade.
- the control unit takes over the control of the adjusting device in order to change the position and / or location of the snow blade as a function of the detected actual snow blade load. This eliminates the need to control the actuating device by a user and consequently changing the position and / or location of the clearing blade is simplified and independent of the skill or concentration of the user.
- the adjusting device can be designed to attach the clearing blade to the vehicle, preferably by means of a support arm and / or an adjusting means of the adjusting device.
- the adjusting device can preferably be designed to change the position and / or the location of the clearing blade relative to the surface and / or relative to the vehicle when the clearing blade is attached to the vehicle with the adjusting device.
- the processing of the surface can be a broaching of the surface including filling of depressions in the surface and / or a removal of material from the surface with the clearing blade.
- the processing of the surface can preferably be a pushing of material with the clearing blade to a desired position.
- the clearing blade is preferably designed to work on a snow surface or a bulk material surface such as, in particular, a sand or gravel surface of a beach, or a surface of the earth, in particular in the field of agriculture or the construction industry.
- a snow surface the processing of the surface can be a clearing and / or removal of snow, in particular for the production or maintenance of a ski slope.
- the processing of the surface can be a clearing and / or a removal of sand, in particular for creating or maintaining a beach or a dune.
- the processing of the surface can be clearing of bulk material, in particular gravel, milled material or earth.
- the actual snow blade load can be a load on the snow blade that occurs while the surface is being worked and acts on the snow blade.
- the actual snow blade load can act on the vehicle via the adjusting device, in particular in the form of a clearing pressure or a clearing force.
- the actual blade load can be dependent on a mass of the material that is pushed with the blade and / or on a material removal from the surface that is removed with the blade.
- the change in the actual snow blade load can be a reduction or an increase in the actual snow blade load.
- the control unit can control the actuating device in such a way that more material is pushed with the snow blade and / or that more material is removed from the surface.
- To reduce the Control take place in such a way that less material is pushed with the dozer blade and / or that less material is removed from the surface.
- the control unit has a memory with maximum values of a target blade load.
- the control unit is designed to compare the recorded actual snow blade load with a maximum value of the target blade load and to control the adjusting device as a function of the comparison in such a way that the actual blade load does not exceed the maximum value of the target blade load.
- the maximum value of the target snow blade load can be a value that can at most act on the vehicle so that the vehicle and the clearing device can work on the surface. Additionally or alternatively, the clearing device can suffer damage if the actual blade load exceeds the maximum value of the target blade load. Consequently, by actuating the adjusting device in this way, damage to the clearing device is advantageously prevented and / or the processing of the surface is ensured.
- the memory has further values of a target blade load.
- the control unit is designed to compare the recorded actual snow blade load with at least one value of the target snow blade load and to control the adjusting device as a function of the comparison in such a way that the actual snow blade load corresponds to the value of the target snow blade load.
- the value of the target blade loading can correspond to a snow transport, a sand transport or a bulk material transport, which is necessary for the production or maintenance of a ski slope, a beach, a dune or a construction site surface.
- the clearing device simplifies the processing of the surface, since only the value of the target blade loading of the clearing device is specified.
- a sensor device for detecting a volume of a depression in the surface.
- the control unit is designed to adjust the actual snow blade loading as a function of the recorded volume of the recess in such a way that the actual snow blade loading corresponds to the volume of the recess.
- the sensor device can be arranged on the clearing blade and / or on the vehicle.
- the sensor device can preferably comprise a camera, an ultrasonic sensor and / or a radar or lidar sensor which determines the volume of the depression.
- the detection device for detecting an actual plow blade load is designed to detect at least one physical clearing parameter, in particular a clearing volume, a clearing pressure acting on a clearing blade front surface or the like.
- a computing unit is assigned to the detection device in order to derive an actual snow blade load from the at least one physical clearing parameter.
- An assignment table with various values of the clearing parameter and associated values of the actual snow blade loading can be stored in the computing unit, the computing unit deriving the actual clearing blade loading with the aid of the assignment table from the recorded clearing parameter.
- the clearing volume can be a volume of a material that is pushed with the clearing blade.
- the detection device for detecting the actual blade load has at least one mechanical sensor, at least one optical sensor, an electrical sensor and / or at least one acoustic sensor, in particular a camera, a strain gauge, an ultrasonic sensor, a radar sensor as a sensor , a capacitive sensor and / or a pressure sensor.
- a mechanical sensor at least one optical sensor, an electrical sensor and / or at least one acoustic sensor, in particular a camera, a strain gauge, an ultrasonic sensor, a radar sensor as a sensor , a capacitive sensor and / or a pressure sensor.
- the sensor system is arranged on the clearing blade.
- the object on which the invention is based is also achieved by a snow grooming vehicle with a previously described clearing device, the surface being a snow surface.
- the piste maintenance vehicle is preferably designed to produce or maintain a ski slope, a fun park or a half pipe on the snow surface.
- FIG. 1 shows a side view of a clearing device according to the invention
- FIG. 2 shows a side view of an embodiment of the clearing device according to FIG. 1
- 3 shows a side view of a further embodiment of the clearing device according to FIG. 1
- FIG. 4 shows a side view of a snow grooming vehicle and the clearing device according to FIG. 1,
- FIG. 5 shows a side view of the snow grooming vehicle and the clearing device according to FIG.
- FIG. 6 shows a side view of the snow grooming vehicle with a clearing device according to FIG. 1,
- FIG. 7 shows a side view of the snow grooming vehicle in one of the illustration according to FIG.
- FIG. 8 shows a side view of the snow grooming vehicle in one of the illustration according to FIG.
- the clearing device 10 has a clearing blade 20 for processing a surface and an adjusting device 30 for spatially controlling the clearing blade 20 relative to the snow grooming vehicle.
- the surface is worked with the clearing blade 20 when the clearing blade 20 is attached to the snow grooming vehicle with the adjusting device 30 and the snow grooming vehicle is traveling on the surface together with the clearing device 10.
- the snow grooming vehicle is a civil track vehicle in the form of a snowcat.
- the adjusting device 30 is designed to change a position and / or a location of the clearing blade 20 relative to the surface when the clearing blade 20 is attached to the vehicle with the adjusting device 30.
- the adjusting device 30 can raise, lower, tilt and / or incline the clearing blade 20.
- the adjusting device can have at least one hydraulic, electrical and / or pneumatic adjusting means, wherein in the case of the hydraulic adjusting means a single-sided or double-sided hydraulic cylinder can be provided.
- the adjusting device 30 has a hydraulic adjusting means in the form of two hydraulic cylinders 34.
- the actuating device can have more than two hydraulic cylinders, in particular four, five or six hydraulic cylinders.
- the two hydraulic cylinders 34 are suitable for transferring relatively high forces, which typically occur when working the surface, from the clearing blade 20 to the snow grooming vehicle.
- the clearing device 10 of FIG. 1 has a detection device 40 for detecting an actual snow blade loading of the clearing blade 20.
- the actual blade load is a load on the blade 20 that occurs while the surface is being worked and acts on the blade 20. Since the load on the clearing blade 20 is transferred to the vehicle by means of the adjusting device 30 while the surface is being machined, a pressure of a hydraulic fluid in the hydraulic cylinders 34 increases Hydraulic fluid on. The measured pressure of the hydraulic fluid corresponds to the actual blade load.
- the detection device 40 is assigned a computing unit 47.
- the derivation can take place on the basis of an allocation table which is stored in a memory of the arithmetic unit 47.
- the assignment table includes various pressure values of the hydraulic fluid and the associated values of the actual blade load.
- the arithmetic unit 47 can derive the actual snow blade load by interpolation or extrapolation with the aid of the assignment table from the recorded pressure.
- the detection device 40 has an ultrasonic sensor 43.
- the ultrasonic sensor 43 is arranged on a clearing blade front surface 21.
- a volume of a material can be detected which is pushed with the clearing blade 20 during the processing of the surface.
- the measured volume of the material corresponds to the actual blade load.
- the actual blade load is also derived with the aid of an assignment table of a computing unit 47 of the ultrasonic sensor 43, in which various volume values of the pushed material and associated values of the actual blade load are stored.
- the clearing device 10 has a control unit 50 with a memory 52, which is designed to control the adjusting device 30 as a function of the actual clearing blade load for the purpose of changing, in particular reducing or increasing, the Actual snow blade loading by changing the position and / or location of the snow blade 20.
- control of the adjusting device 30 eliminates the need to control the adjusting device 30 by a user, which simplifies the control of the adjusting device 30 and is independent of the skill or concentration of the user is.
- the detection device can have only a number of pressure sensors or only a number of ultrasonic sensors.
- FIG. 2 shows a view of a further embodiment of a clearing device 10 '.
- the same reference symbols are used for identical and functionally equivalent elements. In this respect, reference can be made to the above statements on the exemplary embodiment in FIG. 1, so that essentially only the existing differences will be discussed below.
- the detection device 40 comprises a camera 41 and a capacitive sensor 45.
- the chamber 41 is arranged on the clearing blade front surface 21 and aligned such that the camera 41 can take a photo of the material that is being pushed with the clearing blade 20 while the surface is being worked .
- the camera 41 is assigned a computing unit 47 which can determine a volume of the material by analyzing the photo. Furthermore, the computing unit 47 is designed to derive the actual blade load from the volume of the material. This can be done, for example, as already described above, using an allocation table.
- the capacitive sensor 45 is arranged on the clearing blade front surface 21 and extends from a bottom 22 of the clearing blade to a height of the clearing blade 20 which typically comes into contact with the material during the machining of the surface. When material is pushed with the clearing blade 20, this came into contact with the capacitive sensor 45, which then generates an altitude signal. From the height signal, the capacitive sensor 45 determines a height of the pushed material with respect to the ground 22. The capacitive sensor 45 is also assigned a computing unit 47, which derives the actual blade load from the determined height.
- the detection device can have only a number of cameras or only a number of capacitive sensors.
- FIG. 3 shows a view of a further embodiment of a clearing device 10 ′′.
- identical and functionally equivalent elements are identical Reference numerals used. In this respect, reference can be made to the above statements on the exemplary embodiments in FIGS. 1 and 2, so that essentially only the existing differences will be discussed below.
- the adjusting device 30 ‘of the clearing device 10 ′′ shown in FIG. 3 has a hydraulic cylinder 34 and a rigid support arm 32 for attaching the clearing blade 20 to the vehicle.
- the detection device 40 comprises strain gauges 42 and a radar sensor 44.
- the radar sensor 44 is arranged on the clearing blade front surface 21. By means of the radar sensor 44, a volume of a material can be detected which is pushed with the clearing blade 20 during the processing of the surface. The measured volume of the material corresponds to the actual blade load.
- a computing unit 47 of the radar sensor 44 is also designed to derive the actual blade load from the volume of the material. This can be done, for example, as already described above, using the assignment table.
- a strain gauge 42 is arranged on the hydraulic cylinder 34 and on the support arm 32.
- the strain gauges 42 measure an expansion of the support arm 32 and the hydraulic cylinder 34.
- the strain gauges 42 are each assigned a computing unit 47 which is designed to derive the actual blade load from the recorded expansion.
- the detection device can have only a number of radar sensors or only a number of strain gauges. In a further embodiment not shown in FIGS. 1 to 3, the detection device can detect the actual blade loading by means of any combination of a number of cameras, strain gauges, ultrasonic sensors, radar sensors, capacitive sensors and / or pressure sensors.
- FIGS. 4 and 5 show a side view of the clearing device 10 according to FIG. 1 and a snow grooming vehicle 500, the clearing device 10 being fastened to the snow grooming vehicle 500 with the adjusting device 30. 4 and 5, the clearing blade 20 is shown during the processing of a surface 15 of a construction site.
- the snow grooming vehicle 500 drives together with the clearing device 10 in the direction of a processing direction 90 and at the same time the clearing blade 20 clears material 17 in the form of gravel in that the clearing blade 20 pushes the gravel 17 to a desired position.
- the detection device 40 continuously detects the actual blade load.
- a maximum value of a target blade load is stored in the memory 52 of the control unit 50.
- the clearing device 10 suffers damage if the actual blade load exceeds the maximum value of the target blade load.
- the maximum value of the target snow blade load corresponds to a maximum power of a drive of the snow grooming vehicle 500 for processing the surface 15. In other words: if the actual snow blade load exceeds the maximum value of the target
- the performance of the snow grooming vehicle 500 is not sufficient for the processing of the surface 15 with the device 10.
- the control unit 50 compares the recorded actual snow blade load with the maximum value of the target snow blade load during processing. Depending on the comparison, the control unit 50 controls the adjusting device 30 in such a way that the actual snow blade load is reduced by changing the position and / or location of the snow blade 20 relative to the snow grooming vehicle 500 until the actual snow blade load is equal to or less than the maximum value of the Target blade loading is.
- FIG. 4 shows the case in which the actual snow blade load is below or equal to the maximum value of the target snow blade load.
- FIG. 5 shows that the maximum value of the target blade load is exceeded by the actual blade load.
- the control unit 50 has activated the actuating device 30 in such a way that the actual plow blade load is reduced in that the plow blade 20 moves away from the surface 15, as a result of which less material 17 is pushed with the plow blade 20. By reducing the material 17 to be pushed, the actual blade load is reduced.
- the control unit 50 controls the adjusting device 30 until the maximum value of the target blade load is no longer exceeded.
- FIGS. 6 to 8 show a side view of a piste grooming vehicle 1000 with a clearing device 10 according to FIG. 1.
- the snow grooming vehicle 1000 is provided for making and maintaining snow slopes, in particular ski slopes, on a snow surface.
- the snow grooming vehicle 1000 is shown during the processing of a surface 15 in the form of the snow surface.
- the snow grooming vehicle 1000 moves in the direction of a processing direction 90.
- the actual plow blade load depends on a mass of snow that is pushed with the plow blade.
- a further value of a target blade load is stored.
- the other value of the target blade load corresponds to a snow transport that is required for the production or maintenance of the ski slope.
- the control unit 50 compares the recorded actual snow blade load with the further value of the target snow blade load and controls the adjusting device 30 in such a way that the actual snow blade load corresponds to the other value of the target snow blade load.
- control unit 50 controls the adjusting device 30 in such a way that more material is pushed with the snow blade 20 in that more material is removed from the surface 15 by the snow blade 20. This is done by piercing the clearing blade 20 into the surface 15.
- FIG. 8 shows the case in which the recorded actual snow blade load exceeds the further value of the set snow blade load.
- the control unit 50 controls the adjusting device 30 in such a way that less material is pushed with the snow blade 20. This is done by removing the clearing blade 20 from the surface 15.
- FIG. 9 shows the surface 15 in the form of the snow surface, a depression 18 in the surface 15 and the piste maintenance vehicle 1000 with the clearing device 10 according to FIG. 1.
- the depression 18 is to be filled with the piste maintenance vehicle 1000.
- a sensor device 60 for detecting a volume of the recess 18 is provided.
- the sensor device 60 shown in the exemplary embodiment in FIG. 9 is arranged on the clearing blade 20.
- the sensor device 60 is a camera which is designed to take a photo of the depression 18 and to use the photo to determine the volume of the depression 18.
- a volume of snow 19 is consequently required which is equal to the volume of the recess 18.
- the sensor device 60 determines a value of the target blade load which corresponds to the volume of the recess 18 and is required to fill the recess 18.
- the control unit 50 is designed to compare the detected actual blade load with the value of the target blade load for filling the recess 18 and to control the adjusting device 30 as a function of the comparison in such a way that the actual blade load corresponds to the value of the target blade load for the filling of the recess 18 corresponds.
- the control unit 50 is designed to coordinate the actual snow blade load as a function of the recorded volume of the recess 18 such that the actual snow blade load corresponds to the volume of the recess 18.
- the sensor device can determine the volume of the depression by means of any combination of a number of cameras, ultrasonic sensors and / or radar sensors.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Operation Control Of Excavators (AREA)
- Harvester Elements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020205879.2A DE102020205879A1 (de) | 2020-05-11 | 2020-05-11 | Räumvorrichtung und Pistenpflegefahrzeug |
| PCT/EP2021/060847 WO2021228538A1 (de) | 2020-05-11 | 2021-04-26 | Räumvorrichtung und pistenpflegefahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4150160A1 true EP4150160A1 (de) | 2023-03-22 |
| EP4150160B1 EP4150160B1 (de) | 2025-10-22 |
Family
ID=75728840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21722182.9A Active EP4150160B1 (de) | 2020-05-11 | 2021-04-26 | Räumvorrichtung und pistenpflegefahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4150160B1 (de) |
| DE (1) | DE102020205879A1 (de) |
| WO (1) | WO2021228538A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4448624B2 (ja) * | 2001-07-03 | 2010-04-14 | 国土交通省北陸地方整備局長 | 除雪車両及び除雪車両のブレード自動制御方法 |
| IT1390745B1 (it) * | 2008-08-05 | 2011-09-23 | Studio Tecnico Piazzi Di Piazzi Geometra Roberto E C S A S | Attrezzatura per la pulitura delle pavimentazioni stradali innevate |
| JP6873059B2 (ja) | 2017-03-31 | 2021-05-19 | 株式会社小松製作所 | 作業車両の制御システム、作業機の軌跡設定方法、及び作業車両 |
| US11124947B2 (en) | 2018-08-22 | 2021-09-21 | Deere & Company | Control system for a work machine |
| IT201800010464A1 (it) | 2018-11-20 | 2020-05-20 | Prinoth Spa | Veicolo battipista con funzioni automatizzate e metodo per controllare un veicolo battipista |
-
2020
- 2020-05-11 DE DE102020205879.2A patent/DE102020205879A1/de active Pending
-
2021
- 2021-04-26 EP EP21722182.9A patent/EP4150160B1/de active Active
- 2021-04-26 WO PCT/EP2021/060847 patent/WO2021228538A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4150160B1 (de) | 2025-10-22 |
| WO2021228538A1 (de) | 2021-11-18 |
| DE102020205879A1 (de) | 2021-11-11 |
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