EP3034700A1 - Système d'entrainement pour une machine de traitement de sol - Google Patents

Système d'entrainement pour une machine de traitement de sol Download PDF

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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
Prior art date
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Granted
Application number
EP15199706.1A
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German (de)
English (en)
Other versions
EP3034700B1 (fr
Inventor
Werner VÖLKEL
Andreas Baumann
Sebastian Villwock
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.)
Hamm AG
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Hamm AG
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Publication of EP3034700A1 publication Critical patent/EP3034700A1/fr
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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.

Landscapes

  • 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)
EP15199706.1A 2014-12-16 2015-12-14 Systeme d'entrainement pour une machine de traitement de sol Active EP3034700B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014118785.7A DE102014118785A1 (de) 2014-12-16 2014-12-16 Antriebssystem für eine Bodenbearbeitungsmaschine, insbesondere Bodenverdichter, und Verfahren zum Betreiben einer Bodenbearbeitungsmaschine

Publications (2)

Publication Number Publication Date
EP3034700A1 true EP3034700A1 (fr) 2016-06-22
EP3034700B1 EP3034700B1 (fr) 2017-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15199706.1A Active EP3034700B1 (fr) 2014-12-16 2015-12-14 Systeme d'entrainement pour une machine de traitement de sol

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EP (1) EP3034700B1 (fr)
DE (1) DE102014118785A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019002439A1 (de) * 2019-04-03 2020-10-08 Bomag Gmbh Bodenverdichtungsmaschine mit elektrischem Motor und Verfahren zum Betrieb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082396A (en) * 1989-12-08 1992-01-21 Wacker Corporation Vibratory roller
EP2662496A1 (fr) 2012-05-08 2013-11-13 Wacker Neuson Production Americas LLC Machine de rouleau compresseur vibrant avec entraînement électrique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080292401A1 (en) * 2007-05-23 2008-11-27 Caterpillar Inc. Heated drum compactor machine and method
WO2010130284A1 (fr) * 2009-05-12 2010-11-18 El-Forest Ab Système énergétique pour véhicule hybride

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082396A (en) * 1989-12-08 1992-01-21 Wacker Corporation Vibratory roller
EP2662496A1 (fr) 2012-05-08 2013-11-13 Wacker Neuson Production Americas LLC Machine de rouleau compresseur vibrant avec entraînement électrique

Cited By (1)

* Cited by examiner, † Cited by third party
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 (fr) 2017-05-10
DE102014118785A1 (de) 2016-06-16

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