EP3034700A1 - Drive system for a soil working machine - Google Patents
Drive system for a soil working machine Download PDFInfo
- Publication number
- EP3034700A1 EP3034700A1 EP15199706.1A EP15199706A EP3034700A1 EP 3034700 A1 EP3034700 A1 EP 3034700A1 EP 15199706 A EP15199706 A EP 15199706A EP 3034700 A1 EP3034700 A1 EP 3034700A1
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- EP
- European Patent Office
- Prior art keywords
- energy
- drive
- internal combustion
- combustion engine
- power requirement
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- 239000002689 soil Substances 0.000 title claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 claims abstract description 43
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- 238000003971 tillage Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
Definitions
- the present invention relates to a drive system for a tillage machine, such as a tillage machine. a soil compactor.
- This hybrid drive system includes an internal combustion engine and a generator to be driven by this.
- the electrical energy supplied by the generator during operation of the internal combustion engine can be routed via a drive arrangement optionally to an energy storage arrangement and / or to the energy consumers provided in the soil cultivation machine, such as the traction drive motors or the motors for moving an imbalance mass.
- a drive system for a soil cultivation machine comprising an internal combustion engine, a generator arrangement which can be driven by the internal combustion engine in generator operation, an energy storage arrangement which can be charged by the generator arrangement in generator operation, a plurality exclusively by the energy storage arrangement Energy consumers to be supplied with energy, as well as a drive unit for controlling the internal combustion engine for driving the generator assembly in generator mode based on a power requirement of the energy consumer.
- the energy consumers are fed exclusively by the energy storage device.
- a direct introduction of the energy provided by the internal combustion engine or the generator arrangement into the energy consumers is not provided in the system according to the invention. This ensures that, when variations in the power demand occur in the area of the energy consumers, an adaptation of the operation of the internal combustion engine is not spontaneously required for catching power peaks. Since, in principle, however, the internal combustion engine is operated in accordance with the power requirement of the energy consumer in order to charge the energy storage arrangement via the generator arrangement or to maintain it in a predetermined state of charge, it is nevertheless ensured that even when peaks occur in the power requirement, they emerge from the energy storage arrangement provided energy or power supply of energy consumers can be intercepted.
- the drive unit is designed to power the internal combustion engine for an intended power requirement Tillage operation activated or to be activated energy consumers to control.
- the power requirement is determined on the basis of the knowledge of the individual power requirement arising from the respective energy consumers to be activated, and the internal combustion engine is driven based thereon to ensure that the energy storage arrangement is capable of Energy needs also to cover.
- the drive unit is designed to control the internal combustion engine on the basis of the determined in a tillage operation power requirements of the activated for the tillage operation energy consumers. So here, taking into account the actual tillage operation and the occurring Power requirement can be ensured that in the energy storage device sufficient energy is stored or is stored to perform the tillage operation can.
- the drive arrangement is designed to control the internal combustion engine for operation with a drive speed assigned to the power requirement. With the setting of such a drive speed of the internal combustion engine is ensured that the generator assembly is operated at a corresponding speed in the generator mode and, accordingly, also in a position to load the energy storage device.
- a drive that avoids a constant variation of the speed of the internal combustion engine may provide that a drive speed is assigned to each power requirement range of a plurality of power requirement ranges, wherein the drive unit is designed to, when the power requirement lies in one of the power requirement ranges, operate the internal combustion engine with the engine to control the drive speed assigned to this power requirement range.
- the energy storage arrangement may comprise at least one battery unit, which may essentially be provided to cover the expected base load for a respective processing operation. Furthermore, the energy storage arrangement may have at least one capacitor unit, the primary task of which is to provide the energy required for short-term peak loads.
- a DC / AC converter arrangement is provided for feeding at least a portion of, preferably all energy consumers from the energy storage device.
- the power requirement is to be determined during the tillage operation carried out, it is advantageous to determine this at the DC / AC converter arrangement.
- the power requirement is determined as the expected power requirement of the energy consumer activated or to be activated for a tillage operation.
- the power requirement is determined as the actual power requirement of the energy consumer activated in a soil cultivation operation.
- the in Fig. 1 Ground compactor 10 shown as an example of a soil working machine, comprises a front carriage 12 and a rear carriage 14.
- the front carriage 12 is provided with a compressor roller, generally designated 16, while rear wheels 14 are provided with drive wheels 20 moving the soil compactor 10 on a substrate 18 to be processed.
- a drive system 24 described in more detail below is provided on the rear carriage 14. By this drive system 24, the various energy-supplied system areas of the soil compactor 12 are supplied.
- a soil tillage implement designed as a soil compactor could also have a compacting roller at the rear carriage 14, in which case at least one of the two compactor rollers is also driven to advance the soil compactor 10 on the substrate 18.
- at least one compressor roller could be provided on its outer circumference with roller tools, for example pad feet or chisels, in order to be machined Do not or not only compact underground, but also, for example, break up a rocky underground.
- This in Fig. 2 Drive system 24 shown in principle includes an internal combustion engine 26 as a drive unit.
- This internal combustion engine 26 is drivingly coupled to a generator assembly 28.
- the generator assembly 28 may, in the generator mode, driven by the internal combustion engine 26, provide electrical energy and feed it into an energy storage device 30.
- the energy storage arrangement 30 comprises one or more battery units 32 for covering a base load and one or more capacitor units 34 for covering peak loads.
- the electrical energy stored in the energy storage arrangement 30 can, if requested, be supplied via a DC / AC converter arrangement 36 to different, generally designated M energy consumers are directed.
- a first group 38 of the energy consumer M include the drive motor to be activated for the advancement of the soil compactor 10.
- a second group 40 of energy consumers M may comprise the imbalance mass driving motors provided for driving imbalance masses, for example for obtaining a vibratory movement of the compactor roller 16 and / or an oscillating motion of the compactor roller 16.
- a third group 42 of energy consumers M may comprise different drive motors, for example for a steering, for a radiator fan or other units or additional units provided on the ground compressor 10.
- all energy consumers M are designed such that they can be energized or activated by being supplied with electrical energy.
- one of the energy consumers M is for example a pump drive motor, by means of which a hydraulic motor for conveying a hydraulic medium can be driven.
- the Fig. 2 illustrates that all energy consumers M of the drive system 24 exclusively from the energy storage device 30, so here an electrical energy storage device, are powered with energy.
- a direct interaction the energy consumer with the generator assembly 28 and / or the internal combustion engine 26 for powering with energy does not exist.
- the drive system 24 further includes a drive unit 44. This is in driving interaction or in information exchange connection with the internal combustion engine 26, the energy storage device 30, so for example the at least one battery unit 32 and / or the at least one capacitor unit 34, as well as with the DC / AC converter assembly 36.
- the drive unit 44 is provided and designed to control the internal combustion engine 26 such that in the soil working operation of the soil compactor 10 sufficient energy is provided or stored in the energy storage arrangement 30
- the Fig. 4 shows for two different tillage operations B 1 and B 2 plotted over time respectively the power requirement P required for this tillage operations B 1 and B 2 or to be activated energy consumers M. This significantly different power requirements may result, for example, that the tillage operation B 1 more Drive motors are required for driving imbalances, as in the tillage operation B 2 .
- a plurality of power demand areas P B1 , P B2 is defined.
- Each power requirement range P B1 , P B2 is assigned a drive speed n 1 , n 2 of the internal combustion engine 26. If the actual or the expected power requirement or average power requirement of the energy consumer M, for example, in the power demand range P B1 , so is driven by the drive unit 44, the internal combustion engine 26 so that it rotates at the speed n 1 and drives the generator assembly 28 with a corresponding speed.
- Fig. 3 illustrates, in this state, the internal combustion engine 26 operates at a substantially constant speed. Accordingly, the generator assembly 28 operates at a substantially constant charging power and thus injects electrical energy into the energy storage device 30. Since this is charged with a power requirement P, which essentially also the charging power of the generator assembly 28, it is thus ensured that the state of charge of the energy storage device 30 is maintained.
- the determination of the power requirement P can be made, for example, on the basis of the energy consumer M to be activated for a tillage operation to be carried out. These are activated or activated by an operator.
- This activation of energy consumers M can be detected or detected in the drive unit 44, so that it can drive the internal combustion engine 26 to operate with the associated drive speed in accordance with the power consumption anticipating a soil working operation.
- the actually occurring power requirement P B1 , P B2 is detected, for example, at the DC / AC converter arrangement 36 and, based on this actual power requirement, the drive unit 44 drives the internal combustion engine 26 for operation with an assigned drive rotational speed controls. A superimposition of these two modes is possible.
- an anticipated power requirement can first be determined and used as the basis for the control of the internal combustion engine 26 for a tillage operation. Subsequently, during the tillage operation, the power demand can then be monitored. If this changes, for example, into a different power requirement range, then a corresponding activation command can be generated in order to control the internal combustion engine 26 for operation with a drive speed assigned to this new power requirement range.
- the internal combustion engine 26 can be operated essentially at constant speed, which leads to an efficient, energy-saving operation of the same.
- An adaptation of the rotational speed is only necessary if a strong variation in the power requirement occurs, which, however, is not to be expected in particular in soil compaction processes. For example, a relatively large variation in power demand could occur when a tillage operation is to be performed on an uphill ground, for example, to asphalt an uphill road and to compact the asphalt is. If the soil compactor moves uphill, a significantly greater power requirement will arise, especially in the case of the drive motors thereof, than when the soil compactor moves downhill. This can give rise to a variation of the drive speed of the internal combustion engine during operation.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agricultural Machines (AREA)
Abstract
Ein Antriebssystem für eine Bodenbearbeitungsmaschine, insbesondere Bodenverdichter, umfasst eine Brennkraftmaschine (26), durch die Brennkraftmaschine (26) in einem Generatorbetrieb antreibbare Generatoranordnung (28), eine im Generatorbetrieb durch die Generatoranordnung (28) aufladbare Energiespeicheranordnung (30), eine Mehrzahl von ausschließlich durch die Energiespeicheranordnung (30) mit Energie zu versorgenden Energieverbrauchern (M), eine Ansteuereinheit (44) zur Ansteuerung der Brennkraftmaschine (26) zum Antreiben der Generatoranordnung (28) im Generatorbetrieb auf Grundlage eines Leistungsbedarfs der Energieverbraucher (M).A drive system for a soil cultivation machine, in particular a soil compactor, comprises an internal combustion engine (26), a generator arrangement (28), a generator assembly (28), a generator assembly (28) can be charged in the generator assembly (28) energy storage device (30), a plurality of exclusively by the internal combustion engine by the energy storage device (30) to be supplied with energy consumers (M), a drive unit (44) for controlling the internal combustion engine (26) for driving the generator assembly (28) in generator mode based on a power requirement of the energy consumer (M).
Description
Die vorliegende Erfindung betrifft ein Antriebssystem für eine Bodenbearbeitungsmaschine, wie z.B. einen Bodenverdichter.The present invention relates to a drive system for a tillage machine, such as a tillage machine. a soil compactor.
Aus der
Es ist die Aufgabe der vorliegenden Erfindung, ein Antriebssystem für eine Bodenbearbeitungsmaschine, insbesondere Bodenverdichter, sowie ein Verfahren zum Betreiben einer Bodenbearbeitungsmaschine vorzusehen, mit welchen ein effizienter Betrieb der verschiedenen Systembereiche, insbesondere der Brennkraftmaschine, gewährleistet werden kann.It is the object of the present invention to provide a drive system for a soil cultivation machine, in particular soil compactors, and a method for operating a soil cultivation machine, with which an efficient operation of the various system areas, in particular the internal combustion engine, can be ensured.
Gemäß einem ersten Aspekt der vorliegenden Erfindung wird diese Aufgabe gelöst durch ein Antriebssystem für eine Bodenbearbeitungsmaschine, insbesondere Bodenverdichter, umfassend eine Brennkraftmaschine, eine durch die Brennkraftmaschine in einem Generatorbetrieb antreibbare Generatoranordnung, eine im Generatorbetrieb durch die Generatoranordnung aufladbare Energiespeicheranordnung eine Mehrzahl von ausschließlich durch die Energiespeicheranordnung mit Energie zu versorgenden Energieverbrauchern, sowie eine Ansteuereinheit zur Ansteuerung der Brennkraftmaschine zum Antreiben der Generatoranordnung im Generatorbetrieb auf Grundlage eines Leistungsbedarfs der Energieverbraucher.According to a first aspect of the present invention, this object is achieved by a drive system for a soil cultivation machine, in particular soil compactor, comprising an internal combustion engine, a generator arrangement which can be driven by the internal combustion engine in generator operation, an energy storage arrangement which can be charged by the generator arrangement in generator operation, a plurality exclusively by the energy storage arrangement Energy consumers to be supplied with energy, as well as a drive unit for controlling the internal combustion engine for driving the generator assembly in generator mode based on a power requirement of the energy consumer.
Bei dem erfindungsgemäßen Antriebssystem ist vorgesehen, dass die Energieverbraucher ausschließlich durch die Energiespeicheranordnung gespeist werden. Eine direkte Einleitung der von der Brennkraftmaschine oder der Generatoranordnung bereitgestellten Energie in die Energieverbraucher ist bei dem erfindungsgemäßen System nicht vorgesehen. Dies stellt sicher, dass dann, wenn im Bereich der Energieverbraucher Variationen in der Leistungsanforderung auftreten, zum Abfangen von Leistungsspitzen nicht spontan eine Anpassung des Betriebs der Brennkraftmaschine erforderlich ist. Da grundsätzlich jedoch die Brennkraftmaschine angepasst an den Leistungsbedarf der Energieverbraucher betrieben wird, um über die Generatoranordnung die Energiespeicheranordnung zu laden bzw. in einem vorbestimmten Ladezustand zu halten, ist gleichwohl gewährleistet, dass auch beim Auftreten von Spitzen im Leistungsbedarf diese durch die aus der Energiespeicheranordnung heraus bereitgestellte Energie- bzw. Leistungsversorgung der Energieverbraucher abgefangen werden können.In the drive system according to the invention it is provided that the energy consumers are fed exclusively by the energy storage device. A direct introduction of the energy provided by the internal combustion engine or the generator arrangement into the energy consumers is not provided in the system according to the invention. This ensures that, when variations in the power demand occur in the area of the energy consumers, an adaptation of the operation of the internal combustion engine is not spontaneously required for catching power peaks. Since, in principle, however, the internal combustion engine is operated in accordance with the power requirement of the energy consumer in order to charge the energy storage arrangement via the generator arrangement or to maintain it in a predetermined state of charge, it is nevertheless ensured that even when peaks occur in the power requirement, they emerge from the energy storage arrangement provided energy or power supply of energy consumers can be intercepted.
Da bei einer Bodenbearbeitungsmaschine im Allgemeinen bekannt ist, welchen Leistungsbedarf die für einen Bodenbearbeitungsbetrieb zu aktivierenden Energieverbraucher haben, kann gemäß einem besonders vorteilhaften Aspekt der vorliegenden Erfindung vorgesehen sein, dass die Ansteuereinheit dazu ausgebildet ist, die Brennkraftmaschine auf Grundlage eines erwarteten Leistungsbedarfs der für einen vorgesehenen Bodenbearbeitungsbetrieb aktivierten oder zu aktivierenden Energieverbraucher anzusteuern. Hier wird also in einer den durchzuführenden Betrieb antizipierenden Art und Weise der Leistungsbedarf auf der Grundlage der Kenntnis des bei den jeweils zu aktivierenden Energieverbrauchern entstehenden Einzelleistungsbedarfs bestimmt und beruhend darauf die Brennkraftmaschine angesteuert, um zu gewährleisten, dass die Energiespeicheranordnung dazu in der Lage ist, den Energiebedarf auch zu decken.Since it is generally known in a tillage machine which power requirements the energy consumers to be activated for a tillage operation have, it can be provided according to a particularly advantageous aspect of the present invention that the drive unit is designed to power the internal combustion engine for an intended power requirement Tillage operation activated or to be activated energy consumers to control. Here, therefore, in a manner anticipating the operation to be carried out, the power requirement is determined on the basis of the knowledge of the individual power requirement arising from the respective energy consumers to be activated, and the internal combustion engine is driven based thereon to ensure that the energy storage arrangement is capable of Energy needs also to cover.
Alternativ oder zusätzlich kann vorgesehen sein, dass die Ansteuereinheit dazu ausgebildet ist, die Brennkraftmaschine auf Grundlage des in einem Bodenbearbeitungsbetrieb ermittelten Leistungsbedarfs der für den Bodenbearbeitungsbetrieb aktivierten Energieverbraucher anzusteuern. Hier kann also unter Berücksichtigung des tatsächlich durchgeführten Bodenbearbeitungsbetriebs und der dabei auftretenden Leistungsanforderung gewährleistet werden, dass in der Energiespeicheranordnung ausreichend Energie gespeichert ist bzw. gespeichert wird, um den Bodenbearbeitungsbetrieb durchführen zu können.Alternatively or additionally, it can be provided that the drive unit is designed to control the internal combustion engine on the basis of the determined in a tillage operation power requirements of the activated for the tillage operation energy consumers. So here, taking into account the actual tillage operation and the occurring Power requirement can be ensured that in the energy storage device sufficient energy is stored or is stored to perform the tillage operation can.
Beispielsweise kann vorgesehen sein, dass die Ansteueranordnung dazu ausgebildet ist, die Brennkraftmaschine zum Betrieb mit einer dem Leistungsbedarf zugeordneten Antriebsdrehzahl anzusteuern. Mit dem Einstellen einer derartigen Antriebsdrehzahl der Brennkraftmaschine wird gewährleistet, dass auch die Generatoranordnung mit einer entsprechenden Drehzahl im Generatorbetrieb betrieben wird und dementsprechend auch dazu in der Lage ist, die Energiespeicheranordnung zu laden.For example, it can be provided that the drive arrangement is designed to control the internal combustion engine for operation with a drive speed assigned to the power requirement. With the setting of such a drive speed of the internal combustion engine is ensured that the generator assembly is operated at a corresponding speed in the generator mode and, accordingly, also in a position to load the energy storage device.
Eine eine ständige Variation der Drehzahl der Brennkraftmaschine vermeidende Ansteuerung derselben kann vorsehen, dass jedem Leistungsbedarfsbereich einer Mehrzahl von Leistungsbedarfsbereichen eine Antriebsdrehzahl zugeordnet ist, wobei die Ansteuereinheit dazu ausgebildet ist, dann, wenn der Leistungsbedarf in einem der Leistungsbedarfsbereiche liegt, die Brennkraftmaschine zum Betrieb mit der diesem Leistungsbedarfsbereich zugeordneten Antriebsdrehzahl anzusteuern.A drive that avoids a constant variation of the speed of the internal combustion engine may provide that a drive speed is assigned to each power requirement range of a plurality of power requirement ranges, wherein the drive unit is designed to, when the power requirement lies in one of the power requirement ranges, operate the internal combustion engine with the engine to control the drive speed assigned to this power requirement range.
Die Energiespeicheranordnung kann wenigstens eine Batterieeinheit umfassen, welche im Wesentlichen dafür vorgesehen sein kann, die für einen jeweiligen Bearbeitungsbetrieb zu erwartende Grundlast abzudecken. Ferner kann die Energiespeicheranordnung wenigstens eine Kondensatoreinheit aufweisen, deren primäre Aufgabe darin besteht, bei kurzfristig auftretenden Spitzenlasten die erforderliche Energie bereitzustellen.The energy storage arrangement may comprise at least one battery unit, which may essentially be provided to cover the expected base load for a respective processing operation. Furthermore, the energy storage arrangement may have at least one capacitor unit, the primary task of which is to provide the energy required for short-term peak loads.
Um die in der Energiespeicheranordnung gespeicherte Energie in Form von elektrischer Energie zu den Energieverbrauchern abgeben zu können, wird vorgeschlagen, dass eine Gleichstrom/Wechselstrom-Wandleranordnung zum Speisen wenigstens eines Teils der, vorzugsweise aller Energieverbraucher aus der Energiespeicheranordnung vorgesehen ist. Insbesondere dann, wenn der Leistungsbedarf während des durchgeführten Bodenbearbeitungsbetriebs bestimmt werden soll, ist es dabei vorteilhaft, diesen an der Gleichstrom/Wechselstrom-Wandleranordnung zu ermitteln.In order to be able to deliver the stored energy in the energy storage device in the form of electrical energy to the energy consumers, it is proposed that a DC / AC converter arrangement is provided for feeding at least a portion of, preferably all energy consumers from the energy storage device. In particular, when the power requirement is to be determined during the tillage operation carried out, it is advantageous to determine this at the DC / AC converter arrangement.
Die bei dem erfindungsgemäßen Antriebssystem vorgesehenen Energieverbraucher können umfassen:
- wenigstens einen, vorzugsweise eine Mehrzahl von Fahrantriebsmotoren, oder/und
- wenigstens einen, vorzugsweise eine Mehrzahl von Unwuchtmassenantriebsmotoren,
- wenigstens einen Lenkantriebsmotor,
- wenigstens einen Kühlergebläseantriebsmotor,
- wenigstens einen Zusatzaggregatantriebsmotor.
- at least one, preferably a plurality of traction drive motors, and / or
- at least one, preferably a plurality of imbalance mass drive motors,
- at least one steering drive motor,
- at least one radiator fan drive motor,
- at least one accessory drive motor.
Gemäß einem weiteren Aspekt wird die eingangs genannte Aufgabe gelöst durch ein Verfahren zum Betreiben einer Bodenbearbeitungsmaschine, insbesondere nach einem der vorangehenden Ansprüche, umfassend die Maßnahmen:
- a) Bestimmen eines Leistungsbedarfs von ausschließlich durch eine Energiespeicheranordnung zu speisenden Energieverbrauchern,
- b) Betreiben einer Brennkraftmaschine zum Aufladen der Energiespeicheranordnung in Abhängigkeit von dem bei der Maßnahme a) bestimmten Leistungsbedarf.
- a) determining a power requirement of energy consumers to be exclusively supplied by an energy storage device,
- b) operating an internal combustion engine for charging the energy storage device as a function of the power consumption determined in the measure a).
Bei diesem Verfahren kann in einer den in einem durchzuführenden Bodenbearbeitungsbetrieb zu erwartenden Leistungsanforderung antizipierenden Art und Weise vorgesehen sein, dass der Leistungsbedarf als zu erwartender Leistungsbedarf der für einen Bodenbearbeitungsbetrieb aktivierten oder zu aktivierenden Energieverbraucher bestimmt wird. Alternativ oder zusätzlich kann vorgesehen sein, dass der Leistungsbedarf als Ist-Leistungsbedarf der bei einem Bodenbearbeitungsbetrieb aktivierten Energieverbraucher bestimmt wird.In this method, it can be provided in a manner anticipating the performance requirement to be anticipated in a soil tillage operation to be performed that the power requirement is determined as the expected power requirement of the energy consumer activated or to be activated for a tillage operation. Alternatively or additionally, it can be provided that the power requirement is determined as the actual power requirement of the energy consumer activated in a soil cultivation operation.
Die vorliegende Erfindung wird nachfolgend mit Bezug auf die beiliegenden Figuren beschrieben. Es zeigt:
- Fig. 1
- einen selbstfahrenden Bodenverdichter 10 als Beispiel einer Bodenbearbeitungsmaschine;
- Fig. 2
- eine Prinzipdarstellung eines Antriebssystems des Bodenverdichters 10;
- Fig. 3
- ein Diagramm, welches den Betrieb des Antriebssystems der
Fig. 2 für einen Bodenbearbeitungsbetrieb veranschaulicht; - Fig. 4
- ein Diagramm, welches den Betrieb des Antriebssystems der
Fig. 2 für zwei verschiedene Arten von Bodenbearbeitungsbetrieben mit unterschiedlichem Leistungsbedarf veranschaulicht.
- Fig. 1
- a self-propelled soil compactor 10 as an example of a tillage machine;
- Fig. 2
- a schematic diagram of a drive system of the soil compactor 10;
- Fig. 3
- a diagram showing the operation of the drive system of
Fig. 2 for a tillage operation illustrated; - Fig. 4
- a diagram showing the operation of the drive system of
Fig. 2 for two different types of tillage plants with different power requirements.
Der in
Es sei hier darauf hingewiesen, dass der in
Das in
Bei dem erfindungsgemäß aufgebauten Antriebssystem sind alle Energieverbraucher M so konzipiert, dass sie durch Speisung mit elektrischer Energie erregt bzw. aktiviert werden können. Dies schließt selbstverständlich nicht aus, dass einer der Energieverbraucher M beispielsweise ein Pumpenantriebsmotor ist, durch welchen ein Hydraulikmotor zum Fördern eines Hydraulikmediums angetrieben werden kann.In the drive system constructed according to the invention, all energy consumers M are designed such that they can be energized or activated by being supplied with electrical energy. Of course, this does not exclude that one of the energy consumers M is for example a pump drive motor, by means of which a hydraulic motor for conveying a hydraulic medium can be driven.
Die
Dies wird nachfolgend mit Bezug auf die
Die
Wie in
Die Bestimmung des Leistungsbedarfs P kann beispielsweise auf der Grundlage der für einen durchzuführenden Bodenbearbeitungsbetrieb zu aktivierenden Energieverbraucher M erfolgen. Diese werden durch eine Bedienperson zugeschaltet bzw. aktiviert. Dieses Aktivieren von Energieverbrauchern M kann in der Ansteuereinheit 44 erkannt bzw. erfasst werden, so dass diese entsprechend dem einen Bodenbearbeitungsbetrieb antizipierenden Leistungsbedarf die Brennkraftmaschine 26 zum Betrieb mit der zugeordneten Antriebsdrehzahl ansteuern kann. Alternativ kann vorgesehen sein, dass während der Durchführung eines Bodenbearbeitungsbetriebs der tatsächlich auftretende Leistungsbedarf PB1, PB2 beispielsweise an der Gleichstrom/Wechselstrom-Wandleranordnung 36 erfasst wird und beruhend auf diesem Ist-Leistungsbedarf die Ansteuereinheit 44 die Brennkraftmaschine 26 zum Betrieb mit einer zugeordneten Antriebsdrehzahl ansteuert. Auch eine Überlagerung dieser beiden Betriebsarten ist möglich. So kann einen Bodenbearbeitungsbetrieb antizipierend zunächst ein erwarteter Leistungsbedarf bestimmt werden und als Grundlage für die Ansteuerung der Brennkraftmaschine 26 genutzt werden. Nachfolgend während des Bodenbearbeitungsbetriebs kann der Leistungsbedarf dann überwacht werden. Wechselt dieser beispielsweise in einen anderen Leistungsbedarfsbereich, so kann ein entsprechender Ansteuerbefehl generiert werden, um die Brennkraftmaschine 26 zum Betrieb mit einer diesem neuen Leistungsbedarfsbereich zugeordneten Antriebsdrehzahl anzusteuern.The determination of the power requirement P can be made, for example, on the basis of the energy consumer M to be activated for a tillage operation to be carried out. These are activated or activated by an operator. This activation of energy consumers M can be detected or detected in the
Wesentlich ist bei dem erfindungsgemäßen System bzw. bei der erfindungsgemäßen Vorgehensweise, dass die Brennkraftmaschine 26 im Wesentlichen mit konstanter Drehzahl betrieben werden kann, was zu einem effizienten, energiesparenden Betrieb derselben führt. Eine Anpassung der Drehzahl ist nur erforderlich, wenn eine starke Variation im Leistungsbedarf auftritt, was jedoch insbesondere bei Bodenverdichtungsvorgängen grundsätzlich nicht zu erwarten ist. Eine vergleichsweise starke Variation im Leistungsbedarf könnte beispielsweise auftreten, wenn ein Bodenbearbeitungsvorgang an einem bergauf liegenden Untergrund durchzuführen ist, beispielsweise eine bergauf führende Straße zu asphaltieren und der Asphalt zu verdichten ist. Bewegt sich der Bodenverdichter bergauf, wird insbesondere bei den Antriebsmotoren derselben ein deutlich größerer Leistungsbedarf entstehen, als dann, wenn der Bodenverdichter sich bergab bewegt. Dies kann Anlass für eine Variation der Antriebsdrehzahl der Brennkraftmaschine während des Betriebs sein.It is essential in the system according to the invention or in the procedure according to the invention that the
Ferner kann bei dem erfindungsgemäßen Antriebssystem vorgesehen sein, dass im Bremsbetrieb bzw. allgemein im Energierückgewinnungsbetrieb zumindest einige der Energieverbraucher nicht als Motoren, sondern als Generatoren arbeiten und Energie in die Energiespeicheranordnung rückspeisen.Furthermore, it can be provided in the drive system according to the invention that in braking mode or generally in energy recovery operation, at least some of the energy consumers do not work as motors, but as generators and feed energy back into the energy storage device.
Claims (12)
dadurch gekennzeichnet, dass die Ansteuereinheit (44) dazu ausgebildet ist, die Brennkraftmaschine (26) auf Grundlage eines erwarteten Leistungsbedarfs (P) der für einen vorgesehenen Bodenbearbeitungsbetrieb (B1,B2) aktivierten oder zu aktivierenden Energieverbraucher (M) anzusteuern.Drive system according to claim 1,
characterized in that the drive unit (44) is adapted to control the internal combustion engine (26) on the basis of an expected power requirement (P) for an intended tillage operation (B 1 , B 2 ) activated or activated energy consumers (M).
dadurch gekennzeichnet, dass die Ansteuereinheit (44) dazu ausgebildet ist, die Brennkraftmaschine (26) auf Grundlage des in einem Bodenbearbeitungsbetrieb (B1, B2) ermittelten Leistungsbedarfs (P1, P2) der für den Bodenbearbeitungsbetrieb (B1, B2) aktivierten Energieverbraucher (M) anzusteuern.Drive system according to claim 1 or 2,
characterized in that the drive unit (44) is adapted to the internal combustion engine (26) based on the determined in a tillage operation (B 1 , B 2 ) power requirements (P 1 , P 2 ) for the tillage operation (B 1 , B 2 ) activated energy consumers (M) to control.
dadurch gekennzeichnet, dass die Ansteuereinheit (44) dazu ausgebildet ist, die Brennkraftmaschine (26) zum Betrieb mit einer dem Leistungsbedarf (P1, P2) zugeordneten Antriebsdrehzahl (n1, n2) anzusteuern.Drive system according to claim 2 or 3,
characterized in that the drive unit (44) is adapted to drive the internal combustion engine (26) for operation with a power consumption (P 1 , P 2 ) associated drive speed (n 1 , n 2 ).
dadurch gekennzeichnet, dass jedem Leistungsbedarfsbereich (PB1, PB2) einer Mehrzahl von Leistungsbedarfsbereichen (PB1, PB2) eine Antriebsdrehzahl (n1, n2) zugeordnet ist, wobei die Ansteuereinheit (44) dazu ausgebildet ist, dann, wenn der Leistungsbedarf (P) in einem der Leistungsbedarfsbereiche (PB1, PB2) liegt, die Brennkraftmaschine (26) zum Betrieb mit der diesem Leistungsbedarfsbereich (PB1, PB2) zugeordneten Antriebsdrehzahl (n1, n2) anzusteuern.Drive system according to claim 4,
characterized in that a drive speed (n 1 , n 2 ) is assigned to each power demand range (P B1 , P B2 ) of a plurality of power demand ranges (P B1 , P B2 ), wherein the drive unit (44) is designed to, when the Power requirement (P) in one of the power demand ranges (P B1 , P B2 ), the internal combustion engine (26) for operation with the power demand range (P B1 , P B2 ) associated drive speed (n 1 , n 2 ) to control.
dadurch gekennzeichnet, dass die Energiespeicheranordnung (30) wenigstens eine Batterieeinheit (32) und wenigstens eine Kondensatoreinheit (34) umfasst.Drive system according to one of claims 1 to 5,
characterized in that the energy storage arrangement (30) comprises at least one battery unit (32) and at least one capacitor unit (34).
dadurch gekennzeichnet, dass eine Gleichstrom/Wechselstrom-Wandleranordnung (36) zum Speisen wenigstens eines Teils der, vorzugsweise aller Energieverbraucher (M) aus der Energiespeicheranordnung (30) vorgesehen ist.Drive system according to one of claims 1 to 6,
characterized in that a DC / AC converter arrangement (36) is provided for supplying at least part of, preferably all, energy consumers (M) from the energy storage arrangement (30).
dadurch gekennzeichnet, dass der Leistungsbedarf an der Gleichstrom/Wechselstrom-Wandleranordnung (36) ermittelt wird.Drive system according to claim 7,
characterized in that the power requirement on the DC / AC converter arrangement (36) is determined.
dadurch gekennzeichnet, dass die Energieverbraucher (M) umfassen:
characterized in that the energy consumers (M) comprise:
dadurch gekennzeichnet, dass der Leistungsbedarf (P) als zu erwartender Leistungsbedarf der für einen Bodenbearbeitungsbetrieb aktivierten oder zu aktivierenden Energieverbraucher (M) bestimmt wird.Method according to claim 10,
characterized in that the power requirement (P) is determined as the expected power requirement of the energy consumer (M) activated or to be activated for a tillage operation.
dadurch gekennzeichnet, dass der Leistungsbedarf (P) als Ist-Leistungsbedarf (PB1, PB2) der bei einem Bodenbearbeitungsbetrieb aktivierten Energieverbraucher (M) bestimmt wird.Method according to claim 10 or 11,
characterized in that the power requirement (P) is determined as the actual power requirement (P B1 , P B2 ) of the energy consumer (M) activated in a soil cultivation operation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014118785.7A DE102014118785A1 (en) | 2014-12-16 | 2014-12-16 | Drive system for a soil tillage machine, in particular soil compactor, and method for operating a tillage machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3034700A1 true EP3034700A1 (en) | 2016-06-22 |
| EP3034700B1 EP3034700B1 (en) | 2017-05-10 |
Family
ID=55129394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15199706.1A Active EP3034700B1 (en) | 2014-12-16 | 2015-12-14 | Drive system for a soil working machine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3034700B1 (en) |
| DE (1) | DE102014118785A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10584449B2 (en) | 2018-07-03 | 2020-03-10 | Caterpillar Inc. | Start assist for a vibratory system of a compactor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019002439A1 (en) * | 2019-04-03 | 2020-10-08 | Bomag Gmbh | Soil compacting machine with electric motor and method of operation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5082396A (en) * | 1989-12-08 | 1992-01-21 | Wacker Corporation | Vibratory roller |
| EP2662496A1 (en) | 2012-05-08 | 2013-11-13 | Wacker Neuson Production Americas LLC | Vibratory compacting roller machine with an electric drive |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080292401A1 (en) * | 2007-05-23 | 2008-11-27 | Caterpillar Inc. | Heated drum compactor machine and method |
| JP2012526930A (en) * | 2009-05-12 | 2012-11-01 | エル−フォレスト アクチエボラグ | Energy system for hybrid vehicles |
-
2014
- 2014-12-16 DE DE102014118785.7A patent/DE102014118785A1/en not_active Withdrawn
-
2015
- 2015-12-14 EP EP15199706.1A patent/EP3034700B1/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5082396A (en) * | 1989-12-08 | 1992-01-21 | Wacker Corporation | Vibratory roller |
| EP2662496A1 (en) | 2012-05-08 | 2013-11-13 | Wacker Neuson Production Americas LLC | Vibratory compacting roller machine with an electric drive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10584449B2 (en) | 2018-07-03 | 2020-03-10 | Caterpillar Inc. | Start assist for a vibratory system of a compactor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3034700B1 (en) | 2017-05-10 |
| DE102014118785A1 (en) | 2016-06-16 |
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