EP2180099A2 - Système et procédé de commande d'appareils de montage pour véhicules de service d'hiver - Google Patents

Système et procédé de commande d'appareils de montage pour véhicules de service d'hiver Download PDF

Info

Publication number: EP2180099A2
Authority: EP; European Patent Office
Prior art keywords: speed; hydraulic; attachment; auxiliary motor; motor
Prior art date: 2008-10-23
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

Application number

EP09013374A

Other languages

German (de)

English (en)

Other versions

EP2180099A3 (fr

EP2180099B1 (fr

Inventor

Rolf Isele

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.)

Kuepper Weisser GmbH

Original Assignee

Kuepper Weisser GmbH

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2008-10-23

Filing date

2009-10-22

Publication date

2010-04-28

2009-10-22 Application filed by Kuepper Weisser GmbH filed Critical Kuepper Weisser GmbH

2010-04-28 Publication of EP2180099A2 publication Critical patent/EP2180099A2/fr

2014-11-19 Publication of EP2180099A3 publication Critical patent/EP2180099A3/fr

2016-03-02 Application granted granted Critical

2016-03-02 Publication of EP2180099B1 publication Critical patent/EP2180099B1/fr

Status Active legal-status Critical Current

2029-10-22 Anticipated expiration legal-status Critical

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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
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads

Definitions

the invention relates to a system and a method for controlling attachments for winter service spreading vehicles, in particular spreaders.
Attachments for winter maintenance vehicles such as spreaders on Winterdienststreujanen be operated by hydraulic motors.
a hydraulic motor is connected to a hydraulic pump via pressure lines, is driven by hydraulic oil delivered by the hydraulic pump, and converts the energy of the hydraulic oil into mechanical (kinetic) energy.
the hydraulic pump is in turn driven by a different from the vehicle engine auxiliary engine, such as a diesel engine, a gasoline engine or an electric motor.
the control of the power of the hydraulic motor by means of valves that supply the pumped by the hydraulic pump hydraulic oil either the hydraulic motor or conduct at unnecessary power back into a tank.
the object of the present invention is to improve such a system for controlling implements on winter service spreading vehicles.
a system for controlling an attachment for a winter utility vehicle comprises the aforementioned components, namely in particular the auxiliary motor, the hydraulic pump driven by the auxiliary motor and the hydraulic motor which is supplied with hydraulic fluid via the hydraulic pump.
the system according to the invention is set up to automatically determine and set the rotational speed of the auxiliary engine as a function of at least one operating parameter that is relevant for the operation of the at least one attachment, the operating parameters comprising one or more of the following parameters: spreading width, spreading density of salt, Spread density of brine, brine fraction and vehicle speed.
the power and oil quantity of the hydraulic system required for the operation of the attachment can already be determined without additional possibly difficult-to-grasp parameters, for example of the hydraulic system, since the required speeds, i. Swing volumes of the hydraulic motors for a specific operating condition, are known.
the displacement of the hydraulic pump is known.
the required speed of the auxiliary motor can be determined and adjusted.
the rotational speed of the auxiliary motor is determined and adjusted taking into account the displacement volumes of the hydraulic pump and the at least one hydraulic motor, wherein also the rotational speed of the at least one hydraulic motor is taken into account, which is required for driving the attachment due to the relevant operating parameters.
the speed of the auxiliary motor can be controlled only on the basis of already known or predetermined parameters in the system, without additional, not necessary for the conventional operation of the winter service scattering vehicle, parameters must be determined or detected.
an auxiliary engine always runs at a constant speed that can not be changed, and accordingly drives a constant-force hydraulic pump.
the attachment does not require full power at all times provided by the built-up pressure of the hydraulic pump. Therefore, according to the invention, the rotational speed of the auxiliary motor can be set to the actually required value. That is, in the system according to the invention, the auxiliary engine runs at a variable speed, which is determined and set individually, and which can therefore be adapted to changing operating parameters.
auxiliary motor system of the invention Due to the power-controlled speed of the auxiliary motor system of the invention reduces the risk of overheating of the hydraulic oil, since only the amount of hydraulic oil required for the operation of the attachment is always funded by the hydraulic pump. In addition, the invention achieves a noise reduction, especially at standstill of the vehicle, which has a positive effect on the environment. In addition, the lower fuel consumption due to the adjusted speed of the auxiliary engine on the one hand means a reduction in the operating costs of the winter service gritter vehicle and on the other hand a conservation of the environment. Finally, as an advantage less wear of the auxiliary motor should be mentioned, since it often runs at low speed.
a conveyor unit for conveying grit from a grit container and a scattering device for distributing the subsidized grit on a surface to be spread are used.
a conveyor or auger conveys road salt onto a spreading plate which distributes the road salt over a roadway by means of a rotating motion to reduce the risk of road slippery snow and ice.
a brine supply can be provided as another attachment or as a component of an attachment.
a pump is driven by means of the auxiliary motor via a hydraulic motor which pumps the brine from a tank to the conveyed road salt, so that brine and road salt are mixed before spreading on the road.
the speed of the auxiliary motor according to the invention is automatically determined and adjusted depending on operating parameters of the at least one attachment.
the operating parameters comprise one or more of the following parameters: spread, spreading density of salt, spreading density of brine, brine fraction and driving speed of the winter utility vehicle.
spread spreading density of salt
spreading density of brine spreading density of brine
brine fraction driving speed of the winter utility vehicle.
the spread is determined depending on the road width or generally the width of the area to be spread, for example, by the driver of the Winterdienststreuaffs. To relieve the driver, this can also be done automatically, for example, by the position of the vehicle is determined by GPS and set by comparison with a database containing information about roads and sections.
the spread density of salt or brine to be set is influenced by the ambient conditions, such as temperature, humidity or road conditions, whereby the scattering density of brine in the case of pure liquid scattering is important.
the spreading density can in turn be adjusted manually by the driver or automatically.
a GPS-based system can be used, which determines the optimum spreading density based on the position of the winter service litter vehicle and on the basis of weather data.
the weather data can be provided centrally by a weather service or by weather stations along the route being traveled. The determined parameters can then be centrally evaluated and sent to the vehicle, or the evaluation of the data and the determination of the spread density takes place directly in the vehicle.
the road condition in addition to the manual input by the driver and road condition sensors can be used. These determine, for example by infrared and / or microwave radiation, whether the road is wet, icy or dry and how large the amount of moisture. Based on this information, the scatter density is then determined.
Another parameter may be the proportion of brine, ie the percentage of brine in the mixture of road salt and brine.
Road salt is usually not alone, but spread in a mixture with brine on the street. This serves for a moistening of the road salt to the distribution on the Road surface to improve.
the thawing effect of the road salt is improved by mixing with brine.
the brine is mixed with the road salt from a separate tank before being spread.
the amount of brine can be increased or decreased, usually a mixing ratio of 30 weight percent brine and 70 weight percent road salt is used. Since this also hydraulic motors are operated, which are driven by a hydraulic pump, the speed of the auxiliary motor can be adapted to the amount of brine.
the system preferably comprises a reference table in which the associated required speed for the auxiliary motor is stored for different constellations of implements and operating parameters.
the speed of the auxiliary motor can be controlled very easily.
the values in the reference table may be based on empirically derived values.
the system is set to select the speed of the auxiliary motor higher than the speed required for the operation of the at least one attachment and to promote excess hydraulic oil in a tank.
a safety surcharge is selected for the determined from the operating parameters speed of the auxiliary motor. This also works the hydraulic pump with increased speed and thus promotes additional hydraulic oil. As far as this is not needed, it is pumped back into the tank. This safety impact ensures that the hydraulic motor of the attachment always has enough hydraulic pressure.
the system is preferably configured to select the speed of the auxiliary motor after a standstill of the attachment briefly higher than the determined from the operating parameters speed. As a result, the hydraulic system is at a standstill sufficient pressure available, and there are any startup problems, such as a screw conveyor, prevented.
a further embodiment of the invention can be provided to detect the speed of the auxiliary motor.
a possible engine retardation of the auxiliary engine can be detected.
the speed of the auxiliary motor is too low and does not provide enough hydraulic energy for the operation of the attachment.
the speed of the auxiliary motor can then be raised. For this purpose, it may be necessary to reduce the power requirement of the implements until the auxiliary motor has reached the speed in the work area again. Then, the speed can be raised to a higher range to provide the hydraulic motors with sufficient power.
FIG. 1 is the arrangement of an auxiliary motor 1 and a connected controller 2 with two hydraulic motors 4, 5 shown simplified.
the controller 2 controls the speed of the auxiliary engine 1, for example, a diesel engine, a gasoline engine or an electric motor by processing setpoints and actual values and operating parameters and determines therefrom the speed for the auxiliary motor 1.
the auxiliary motor 1 is connected via an electrical connection 16 to the controller 2.
the auxiliary engine 1 drives a hydraulic pump 3, which via a pressure line 7 hydraulic oil to hydraulic motors 4, 5 passes.
the hydraulic motors 4, 5 each drive an attachment, such as a spreader.
the controller 2 receives a feedback from the auxiliary engine 1 about its instantaneous speed, which can be included in the determination of the speed of the auxiliary motor 1 in addition to the other operating parameters.
FIG. 2 illustrated functional diagram shows the most important for the control of the implements of a Winterdienststreufzeugmaschines electrical and hydraulic components.
programming of the attachment operation is carried out in advance on a computer 30 by means of software.
some operating parameters that are relevant for the operation of the winter service litter vehicle can already be determined in advance.
the results of the programming are then stored on a memory card 31, for example a compact flash card, in order to be able to transmit them to the controller 2 of the winter service broadcasting vehicle.
the memory card 31 is inserted into an operating unit 29 and read from this.
the operating unit 29 is also provided for allowing an operator, for example the driver, to make settings himself via a keyboard.
the operating unit 29 may preferably be separably connected to the controller 2 of the vehicle via a CAN bus (Controller Area Network) 28.
the controller 2 receives in this way the preprogrammed settings that are stored on the memory card 31, and optionally inputs that the driver makes via the operating unit 29. This information determines the setpoints SW for the attached implements of the vehicle. Manual inputs by the driver can be, for example, the specification of the spread density or the spread width, if these parameters are not automatically determined.
FIG. 2 illustrated functional diagram of a winter maintenance vehicle includes a grit container 20, the grit, such as salt, record. From the grit container 20, the grit is conveyed by means of a screw conveyor 19 in the direction of a spreader 18, such as a rotating spreading plate. In order to improve the thawing action of the salt to be scattered, it is supplied with brine before being spread on the road surface.
the brine passes from brine tank 21 via a line 22 with a valve 23 and a pump to the spreader 18.
the spreader 18, the screw conveyor 19 and the brine pump are each driven by hydraulic motors 4, 5, 6.
the hydraulic energy required for this purpose is generated by the auxiliary motor 1.
the auxiliary engine 1 drives to a hydraulic pump 3, which promotes hydraulic oil via a hydraulic pressure line 7 to a hydraulic proportional control unit 26. This divides the hydraulic flow on three pressure lines 8, 9, 10, which lead to the hydraulic motors 4, 5, 6 of the respective attachments.
the drive of the screw conveyor 19 via the hydraulic motor 4, which is connected to the pressure line 8, the drive of the hydraulic motor 5 for the spreader 18 via the pressure line 9, and connected to the pressure line 10 hydraulic motor 6 drives a pump for conveying the Brine from brine tank 21 on.
an operating parameter is the driving speed of the winter maintenance vehicle, the is sent via the connection 11 to the controller 2.
the regulation of the rotational speed of the auxiliary motor is possible only with the preprogrammed settings and the settings made via the operating unit 29, in addition to, for example, the rotational speeds of the hydraulic motors 4, 5, 6 of the spreader 18, the screw conveyor 19 and the Brine pump, possibly taking into account transmission ratios. These are sampled by encoders with specific pulses and sent via connections 13, 14, 15 to the controller 2. In addition, the current speed of the auxiliary motor 1 is measured and transmitted via the connection 12 to the controller 2.
the microprocessor 27 may also receive information from a road condition sensor 24 which measures the temperature of the road surface.
the road condition sensor may also provide other information about the condition of the road, such as the presence of snow or ice, or the moisture of the road.
Information about the position of the vehicle may be given by a GPS sensor 25.
weather data from weather maps can be taken into account or the road width can be determined by comparison with a database.
the scattering properties can be further adapted to the ambient conditions without the driver having to make manual adjustments via the operating unit 29.
the microprocessor 27 determines the manipulated variables SG for the hydraulic proportional control unit 26 from the actual values IW, the desired values SW and the data on the position of the vehicle and the state of the road surface and transmits these via the connection 17.
the manipulated variables SG further include the rotational speed of the Auxiliary motor 1, which depends on the operating parameters and is transmitted via the connection 16 to the auxiliary motor 1.
the speed of the auxiliary motor 1 is then adjusted accordingly, whereby the hydraulic pump 3 possibly taking into account safety surcharges, which are intended to absorb power peaks, promotes only the required amount of hydraulic oil and the advantages mentioned above are achieved.

Landscapes

Engineering & Computer Science (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Control Of Fluid Gearings (AREA)
Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

EP09013374.5A 2008-10-23 2009-10-22 Système et procédé de commande d'appareils de montage pour véhicules de service d'hiver Active EP2180099B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE200810052878 DE102008052878A1 (de)	2008-10-23	2008-10-23	System und Verfahren zur Steuerung von Anbaugeräten für Winterdienstfahrzeuge

Publications (3)

Publication Number	Publication Date
EP2180099A2 true EP2180099A2 (fr)	2010-04-28
EP2180099A3 EP2180099A3 (fr)	2014-11-19
EP2180099B1 EP2180099B1 (fr)	2016-03-02

Family

ID=41506463

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP09013374.5A Active EP2180099B1 (fr)	2008-10-23	2009-10-22	Système et procédé de commande d'appareils de montage pour véhicules de service d'hiver

Country Status (3)

Country	Link
EP (1)	EP2180099B1 (fr)
DE (1)	DE102008052878A1 (fr)
DK (1)	DK2180099T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20220064886A1 (en) *	2019-05-28	2022-03-03	Ari J. Ostrow	Robotic de-icer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US10991180B2 (en)	2017-04-21	2021-04-27	Engrenage Provincial Inc.	Controller area network (CAN) message scanner for a winter service vehicle, and method of scanning a CAN message

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2229812A1 (en) *	1973-05-17	1974-12-13	Lebon Et Cie	Spreader vehicle for use on roads - has screw conveyor feeding separate tubes for liq. or solids above rotating disc

2008
- 2008-10-23 DE DE200810052878 patent/DE102008052878A1/de not_active Withdrawn
2009
- 2009-10-22 DK DK09013374.5T patent/DK2180099T3/da active
- 2009-10-22 EP EP09013374.5A patent/EP2180099B1/fr active Active

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20220064886A1 (en) *	2019-05-28	2022-03-03	Ari J. Ostrow	Robotic de-icer
US11933008B2 (en) *	2019-05-28	2024-03-19	Ari J. Ostrow	Robotic de-icer

Also Published As

Publication number	Publication date
EP2180099A3 (fr)	2014-11-19
DK2180099T3 (da)	2016-06-13
EP2180099B1 (fr)	2016-03-02
DE102008052878A1 (de)	2010-06-02

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