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EP2333158B2 - Road finisher - Google Patents
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EP2333158B2 - Road finisher - Google Patents

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Publication number
EP2333158B2
EP2333158B2 EP09014846.1A EP09014846A EP2333158B2 EP 2333158 B2 EP2333158 B2 EP 2333158B2 EP 09014846 A EP09014846 A EP 09014846A EP 2333158 B2 EP2333158 B2 EP 2333158B2
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EP
European Patent Office
Prior art keywords
generator
energy
energy source
energy storage
load
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EP09014846.1A
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German (de)
French (fr)
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EP2333158A1 (en
EP2333158B1 (en
Inventor
Martin Dipl.-Ing. Buschmann
Achim Eul
Tobias Noll
Ralf Weiser
Michael Heindtel
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Joseph Voegele AG
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Joseph Voegele AG
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Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Priority to PL09014846T priority Critical patent/PL2333158T5/en
Priority to EP09014846.1A priority patent/EP2333158B2/en
Publication of EP2333158A1 publication Critical patent/EP2333158A1/en
Publication of EP2333158B1 publication Critical patent/EP2333158B1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/10—Heated screeds

Definitions

  • the invention relates to a paver explained in the preamble of claim 1 Art.
  • Such a paver is from the DE-A-19912248 known.
  • Road pavers of this type have a variety of electrical consumers, of which the heater for the screed is the most important. This heater is used to maintain the processing temperature of the paving so long until the paving is installed.
  • the electrical consumers of a paver are powered by a generator which in turn is powered by a primary energy source in the form of an internal combustion engine, usually a diesel engine.
  • the primary energy source not only drives the generator, but also provides power for other tasks of the paver, such as hydraulic power or the like.
  • this energy is not always needed. Nevertheless, the primary source of energy must be kept working so that the generator can operate as soon as heating power is required. This increases fuel consumption and the environmental impact of exhaust gases.
  • the known road paver trying to save energy thereby, that the heater clocked on and off, so that the power supply can be reduced. However, this does not solve the problem that nevertheless the primary energy source has to work continuously.
  • the invention has for its object to provide a paver with improved energy conservation.
  • the primary energy source can be switched off when only electrical energy is required. This saves fuel (in the case of an internal combustion engine) and avoids exhaust gases.
  • a battery is used as energy storage.
  • a thermal storage is possible.
  • Fig. 1 shows a paver 1 in a highly schematic representation.
  • the paver 1 is up to the features of the invention of conventional design and includes a chassis 2, with a chassis 3, a lying in the direction of travel F good container 4 and a rear in the direction of travel distribution device 5, which presents the property to be built a screed 6.
  • the energy required for the operation of the road paver 1 is provided by a primary energy source 7, usually an internal combustion engine and preferably a diesel engine.
  • the primary energy source 7 drives a generator 8, which is connected via converters 9 electrically connected to the various electrically operable consumers.
  • One of these consumers is a heating device 10, which heats the screed 6.
  • the primary energy source 7 continues to operate hydraulic pumps 11 to which a variety of secondary drives are hydraulically and / or mechanically connected, secondary drives such as a drive 12 for the chassis 3, a hydrostatic or electromagnetic steering drive 13, a hydrostatic or electromechanical drive 14 for the transverse distribution device 5, etc .. . could be.
  • secondary drives such as a drive 12 for the chassis 3, a hydrostatic or electromagnetic steering drive 13, a hydrostatic or electromechanical drive 14 for the transverse distribution device 5, etc .. . could be.
  • the primary energy source 7 is connected on the one hand directly to the hydraulic pump or pumps 11 and on the other hand directly to the generator 8.
  • the generator 8 supplies the heating device 10 with electrical energy as soon as the primary energy source 7 is operating.
  • an energy storage 15 is connected, which is charged during operation of the primary energy source 7 via the generator 8.
  • energy storage a battery (lead-acid battery) or capacitors or accumulators is preferably used.
  • the energy store is connected to the heater 10 such that the heater 10 can be supplied with energy in addition to the supply via the generator 8 via the energy storage.
  • a controller 17 is connected via an information line 18 to the energy store 15, via which the controller 17 receives information about the state of charge of the energy store 15.
  • the controller 17 is further connected via an information line 19 to the primary energy source 7, via which the controller 17 receives information about the load state of the primary energy source 7, in particular the diesel engine.
  • the controller 17 is further connected via an information line 20 to the consumer powered by the energy storage device 15, in particular the heating device 10 for the screed, via which the controller 17 receives information about the actual temperature reached by the heating device 10.
  • the controller 17 is further connected via a control line 21 to the primary energy source 7, are transmitted via the control signals for switching on and off and for speed control to the primary energy source 7.
  • the controller 17 is via a control line 22 connected to the generator 8, via which the generator 8 is switched on and off.
  • the controller 17 is connected via a further control line 23 both with the power converters 9 and with the input of the heater 10 to connect the heater 10 either directly to the generator 8 or the energy storage 15.
  • the electric screed heater 10 When operating the paver, first the electric screed heater 10 is brought to operating temperature. As usual, heating elements of this heater are temperature controlled and regulate the desired temperature on the machine parts with a control loop to a setpoint. If a temperature setpoint is undershot, the heating elements are supplied with electrical energy by the generator. If the nominal value is exceeded at the end of the heating-up period and during the generator operation of the heating device, the generator does not supply any energy to the heating elements.
  • the diesel engine used predominantly as the primary energy source 7 for road pavers is designed for maximum peak loads. Since this performance is only available for very short periods of time and especially for larger construction measures, the heating and charging process of the battery can be controlled dynamically in the remaining installation time at smaller construction sites depending on the load condition on the diesel engine. For example, if the engine controller recognizes during the installation that diesel engine power is still available, power can be drawn from the generator for heating and charging, so that the utilization of the diesel engine increases. Ideally, the regulation takes place so that the diesel engine utilization remains constant at a high level and the diesel engine is thus operated in a favorable characteristic map. After the installation phase, the machine must continue to ensure readiness for operation by means of a warm screed.
  • the energy storage now takes over the energy supply for screed heating and the diesel engine can be switched off. If the screed temperature of the screed falls below the setpoint when the energy store is empty, the diesel engine must start and the screed with the generator must be heated as before. Depending on the dimensioning of the energy storage device and the proportion of the installation time to the total operating time, the proportions in which the diesel engine is operated in the unfavorable characteristic area can be reduced.
  • the primary energy source 7 if it is not needed for other purposes except the operation of the heater, for example, during breaks, are switched off, so that the heater is now supplied via the energy storage 15.
  • Heating with energy storage only serves to keep the screed warm, so that the completely installed heating power does not have to be applied. It has been found that even half the heating power for holding the target temperature is more than sufficient. Heating via energy storage thus brings no deterioration of the function with it.
  • the energy storage 15 is charged during operating phases of the primary energy source in which the primary energy source 7 can provide more energy than is needed by the remaining drives 12, 13, 14 (e.g., at less than 95% utilization). Since the paver is designed for maximum peak performance, this filling is easily possible, without sacrificing performance on the other drives. In addition, a diesel engine used as a primary energy source 7 is now operated almost exclusively in a favorable for diesel consumption engine map.
  • Fig. 3 shows a flow diagram of the control of a preferred embodiment of the invention, wherein a screed heater acts as a consumer and a diesel engine as a primary energy source.
  • a screed heater acts as a consumer and a diesel engine as a primary energy source.
  • the engine is started. If the total diesel engine power exceeds 95% for other purposes, the generator is switched off. If not the entire drive power is needed for other purposes, the heater is operated by the generator, if the bottom target temperature has not yet been reached, or it is charged the energy storage, if the energy storage is not fully charged. If it is determined at the beginning of operation that the energy storage is empty or not ready for operation, the diesel engine is started even if no drive power is required for other drives.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Description

Die Erfindung bezieht sich auf einen Straßenfertiger der im Oberbegriff von Anspruch 1 erläuterten Art.The invention relates to a paver explained in the preamble of claim 1 Art.

Ein derartiger Straßenfertiger ist aus der DE-A-19912248 bekannt. Straßenfertiger dieser Art haben eine Vielzahl von elektrischen Verbrauchern, von denen die Heizeinrichtung für die Bohle die wichtigste ist. Diese Heizeinrichtung dient dazu, die Verarbeitungstemperatur des Einbaugutes so lange aufrechtzuerhalten, bis das Einbaugut eingebaut ist. Die elektrischen Verbraucher eines Straßenfertigers werden von einem Generator mit Energie versorgt, der seinerseits von einer Primärenergiequelle in Form eines Verbrennungsmotors, meist ein Dieselmotor, angetrieben wird. Die Primärenergiequelle treibt jedoch nicht nur den Generator an, sondern liefert auch Energie für andere Aufgaben des Straßenfertigers, beispielsweise hydraulische Energie oder dergleichen. Diese Energie wird jedoch nicht immer benötigt. Trotzdem muss die Primärenergiequelle laufend arbeiten, damit der Generator, sobald Heizleistung erforderlich ist, arbeiten kann. Dies erhöht den Kraftstoffverbrauch und die Umweltbelastung durch Abgase. Beim bekannten Straßenfertiger versucht man, Energie dadurch einzusparen, dass man die Heizeinrichtung getaktet ein- und ausschaltet, so dass die Energiezufuhr vermindert werden kann. Dies löst jedoch nicht das Problem, dass trotzdem die Primärenergiequelle laufend arbeiten muss.Such a paver is from the DE-A-19912248 known. Road pavers of this type have a variety of electrical consumers, of which the heater for the screed is the most important. This heater is used to maintain the processing temperature of the paving so long until the paving is installed. The electrical consumers of a paver are powered by a generator which in turn is powered by a primary energy source in the form of an internal combustion engine, usually a diesel engine. However, the primary energy source not only drives the generator, but also provides power for other tasks of the paver, such as hydraulic power or the like. However, this energy is not always needed. Nevertheless, the primary source of energy must be kept working so that the generator can operate as soon as heating power is required. This increases fuel consumption and the environmental impact of exhaust gases. The known road paver trying to save energy thereby, that the heater clocked on and off, so that the power supply can be reduced. However, this does not solve the problem that nevertheless the primary energy source has to work continuously.

Der Erfindung liegt die Aufgabe zugrunde, einen Straßenfertiger mit einer verbesserten Energieeinsparung zu schaffen.The invention has for its object to provide a paver with improved energy conservation.

Die Aufgabe wird bei einem Straßenfertiger durch die Merkmale des Anspruchs 1 gelöst.The object is achieved in a paver by the features of claim 1.

Durch die erfindungsgemäße Ausgestaltung kann die Primärenergiequelle abgeschaltet werden, wenn nur elektrische Energie erforderlich ist. Dadurch wird Kraftstoff (im Falle eines Verbrennungsmotors) gespart und Abgase vermieden.The inventive design, the primary energy source can be switched off when only electrical energy is required. This saves fuel (in the case of an internal combustion engine) and avoids exhaust gases.

Die Aufgabe wird weiterhin durch ein Verfahren mit den Merkmalen des Anspruchs 6 gelöst.The object is further achieved by a method having the features of claim 6.

Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous developments of the invention can be found in the dependent claims.

Bevorzugt wird als Energiespeicher eine Batterie eingesetzt. Auch die Verwendung eines Thermospeichers ist möglich.Preferably, a battery is used as energy storage. The use of a thermal storage is possible.

Die Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine schematische Darstellung eines erfindungsgemäßen Straßenfertigers,
Fig. 2
ein Ausführungsbeispiel eines Steuerungskonzeptes einer Bohlenheizung nach dem erfindungsgemäßen Prinzip, und
Fig. 3
ein Ablaufdiagramm der Steuerung gemäß Fig. 2.
The invention will be explained in more detail with reference to the drawings. Show it:
Fig. 1
a schematic representation of a road finisher according to the invention,
Fig. 2
an embodiment of a control concept of a screed heating according to the principle of the invention, and
Fig. 3
a flowchart of the controller according to Fig. 2 ,

Fig. 1 zeigt einen Straßenfertiger 1 in stark schematisierter Darstellung. Der Straßenfertiger 1 ist bis auf die erfindungsgemäßen Merkmale von üblicher Bauart und enthält ein Chassis 2, mit einem Fahrwerk 3, einen in Fahrtrichtung F vorne liegenden Gutbehälter 4 und eine in Fahrtrichtung hinten liegende Verteileinrichtung 5, die das einzubauende Gut einer Einbaubohle 6 vorlegt. Die für den Betrieb des Straßenfertigers 1 notwendige Energie wird von einer Primärenergiequelle 7, meist einem Verbrennungsmotor und bevorzugt einem Dieselmotor, bereitgestellt. Die Primärenergiequelle 7 treibt einen Generator 8 an, der über Stromrichter 9 elektrisch mit den verschiedenen elektrisch betreibbaren Verbrauchern verbunden ist. Einer dieser Verbraucher ist eine Heizeinrichtung 10, die die Einbaubohle 6 beheizt. Fig. 1 shows a paver 1 in a highly schematic representation. The paver 1 is up to the features of the invention of conventional design and includes a chassis 2, with a chassis 3, a lying in the direction of travel F good container 4 and a rear in the direction of travel distribution device 5, which presents the property to be built a screed 6. The energy required for the operation of the road paver 1 is provided by a primary energy source 7, usually an internal combustion engine and preferably a diesel engine. The primary energy source 7 drives a generator 8, which is connected via converters 9 electrically connected to the various electrically operable consumers. One of these consumers is a heating device 10, which heats the screed 6.

Die Primärenergiequelle 7 betreibt weiterhin Hydraulikpumpen 11, an die die verschiedensten Sekundärantriebe hydraulisch oder/und mechanisch angeschlossen sind, wobei Sekundärantriebe beispielsweise ein Antrieb 12 für das Fahrwerk 3, ein hydrostatischer oder elektromagnetischer Lenkantrieb 13, ein hydrostatischer oder elektromechanischer Antrieb 14 für die Querverteileinrichtung 5 usw. sein können.The primary energy source 7 continues to operate hydraulic pumps 11 to which a variety of secondary drives are hydraulically and / or mechanically connected, secondary drives such as a drive 12 for the chassis 3, a hydrostatic or electromagnetic steering drive 13, a hydrostatic or electromechanical drive 14 for the transverse distribution device 5, etc .. . could be.

Wie Fig. 2 zeigt, ist die Primärenergiequelle 7 einerseits direkt mit der oder den Hydraulikpumpen 11 und andererseits direkt mit dem Generator 8 verbunden. Der Generator 8 versorgt die Heizeinrichtung 10 mit elektrischer Energie, sobald die Primärenergiequelle 7 arbeitet.As Fig. 2 shows, the primary energy source 7 is connected on the one hand directly to the hydraulic pump or pumps 11 and on the other hand directly to the generator 8. The generator 8 supplies the heating device 10 with electrical energy as soon as the primary energy source 7 is operating.

An den Generator 8 ist ein Energiespeicher 15 angeschlossen, der beim Betrieb der Primärenergiequelle 7 über den Generator 8 aufgeladen wird. Als Energiespeicher wird bevorzugt eine Batterie (Bleibatterie) oder Kondensatoren oder Akkumulatoren eingesetzt. Der Energiespeicher ist mit der Heizeinrichtung 10 derart verbunden, dass die Heizeinrichtung 10 neben der Versorgung über den Generator 8 auch über den Energiespeicher mit Energie versorgt werden kann.To the generator 8, an energy storage 15 is connected, which is charged during operation of the primary energy source 7 via the generator 8. As energy storage, a battery (lead-acid battery) or capacitors or accumulators is preferably used. The energy store is connected to the heater 10 such that the heater 10 can be supplied with energy in addition to the supply via the generator 8 via the energy storage.

Eine Steuerung 17 ist über eine Informationsleitung 18 mit dem Energiespeicher 15 verbunden, über die die Steuerung 17 Informationen über den Ladezustand des Energiespeichers 15 erhält. Die Steuerung 17 ist weiterhin über eine Informationsleitung 19 mit der Primärenergiequelle 7 verbunden, über die die Steuerung 17 Informationen über den Lastzustand der Primärenergiequelle 7, insbesondere dem Dieselmotor, erhält. Die Steuerung 17 ist weiterhin über eine Informationsleitung 20 mit dem vom Energiespeicher 15 versorgten Verbraucher, insbesondere der Heizeinrichtung 10 für die Bohle verbunden, über die die Steuerung 17 Informationen über die von der Heizeinrichtung 10 erreichten, tatsächlichen Temperatur erhält.A controller 17 is connected via an information line 18 to the energy store 15, via which the controller 17 receives information about the state of charge of the energy store 15. The controller 17 is further connected via an information line 19 to the primary energy source 7, via which the controller 17 receives information about the load state of the primary energy source 7, in particular the diesel engine. The controller 17 is further connected via an information line 20 to the consumer powered by the energy storage device 15, in particular the heating device 10 for the screed, via which the controller 17 receives information about the actual temperature reached by the heating device 10.

Die Steuerung 17 ist weiterhin über eine Steuerleitung 21 mit der Primärenergiequelle 7 verbunden, über die Steuersignale zum An- und Abschalten sowie zur Drehzahlregelung an die Primärenergiequelle 7 übermittelt werden. Die Steuerung 17 ist über eine Steuerleitung 22 mit dem Generator 8 verbunden, über die der Generator 8 an- und abgeschaltet wird. Die Steuerung 17 ist über eine weitere Steuerleitung 23 sowohl mit den Stromrichtern 9 als auch mit dem Eingang der Heizeinrichtung 10 verbunden, um die Heizeinrichtung 10 wahlweise direkt mit dem Generator 8 oder dem Energiespeicher 15 zu verbinden.The controller 17 is further connected via a control line 21 to the primary energy source 7, are transmitted via the control signals for switching on and off and for speed control to the primary energy source 7. The controller 17 is via a control line 22 connected to the generator 8, via which the generator 8 is switched on and off. The controller 17 is connected via a further control line 23 both with the power converters 9 and with the input of the heater 10 to connect the heater 10 either directly to the generator 8 or the energy storage 15.

Beim Betrieb des Straßenfertigers wird zunächst die elektrische Bohlenheizung 10 auf Betriebstemperatur gebracht. Wie üblich, sind Heizelemente dieser Heizeinrichtung temperaturgesteuert und regeln die gewünschte Temperatur an den Maschinenteilen mit einem Regelkreis auf einen Sollwert ein. Wird ein Temperatursollwert unterschritten, so werden die Heizelemente durch den Generator mit elektrischer Energie versorgt. Wird am Ende der Aufheizperiode und während des Generatorbetriebes der Heizeinrichtung der Sollwert überschritten, liefert der Generator keine Energie an die Heizelemente.When operating the paver, first the electric screed heater 10 is brought to operating temperature. As usual, heating elements of this heater are temperature controlled and regulate the desired temperature on the machine parts with a control loop to a setpoint. If a temperature setpoint is undershot, the heating elements are supplied with electrical energy by the generator. If the nominal value is exceeded at the end of the heating-up period and during the generator operation of the heating device, the generator does not supply any energy to the heating elements.

Der als Primärenergiequelle 7 bei Straßenfertigern überwiegend eingesetzte Dieselmotor ist für maximale Spitzenlasten ausgelegt. Da diese Leistung nur für sehr kurze Zeiten und vor allem bei größeren Baumaßnahmen abgerufen wird, lassen sich in der verbleibenden Einbauzeit bei kleineren Baustellen die Heizung und der Ladevorgang des Akkus in Abhängigkeit des Lastzustandes am Dieselmotor dynamisch regeln. Erkennt die Maschinensteuerung während des Einbaus z.B., dass noch Dieselmotorleistung zur Verfügung steht, kann aus dem Generator Strom für Heizung und Ladevorgang entnommen werden, so dass die Auslastung des Dieselmotors ansteigt. Idealerweise erfolgt die Regelung so, dass die Dieselmotorauslastung auf einem hohen Niveau konstant bleibt und der Dieselmotor somit in einem günstigen Kennfeld betrieben wird. Nach der Einbauphase muss die Maschine weiterhin die Betriebsbereitschaft durch eine warme Bohle sicherstellen. Der Energiespeicher übernimmt nun die Energieeinspeisung zur Bohlenheizung und der Dieselmotor kann ausgeschaltet werden. Sollte die Glättblechtemperatur der Bohle bei leerem Energiespeicher unter den Sollwert fallen, muss der Dieselmotor starten und die Bohle mit dem Generator wie bisher beheizen. Je nach Dimensionierung des Energiespeichers und Anteil der Einbauzeit zur Gesamtbetriebszeit lassen sich die Anteile, in denen der Dieselmotor in dem ungünstigen Kennfeldbereich betrieben wird, reduzieren.The diesel engine used predominantly as the primary energy source 7 for road pavers is designed for maximum peak loads. Since this performance is only available for very short periods of time and especially for larger construction measures, the heating and charging process of the battery can be controlled dynamically in the remaining installation time at smaller construction sites depending on the load condition on the diesel engine. For example, if the engine controller recognizes during the installation that diesel engine power is still available, power can be drawn from the generator for heating and charging, so that the utilization of the diesel engine increases. Ideally, the regulation takes place so that the diesel engine utilization remains constant at a high level and the diesel engine is thus operated in a favorable characteristic map. After the installation phase, the machine must continue to ensure readiness for operation by means of a warm screed. The energy storage now takes over the energy supply for screed heating and the diesel engine can be switched off. If the screed temperature of the screed falls below the setpoint when the energy store is empty, the diesel engine must start and the screed with the generator must be heated as before. Depending on the dimensioning of the energy storage device and the proportion of the installation time to the total operating time, the proportions in which the diesel engine is operated in the unfavorable characteristic area can be reduced.

Hat die Heizeinrichtung ihre Betriebstemperatur erreicht, so kann die Primärenergiequelle 7, wenn sie nicht für andere Einsatzzwecke außer dem Betrieb der Heizvorrichtung benötigt wird, beispielsweise während Arbeitspausen, abgeschaltet werden, so dass die Heizeinrichtung nunmehr über den Energiespeicher 15 versorgt wird. Das Heizen mit Energiespeicher dient lediglich zum Warmhalten der Bohle, so dass nicht die komplett installierte Heizleistung aufgebracht werden muss. Es hat sich herausgestellt, dass bereits die halbe Heizleistung für ein Halten der Solltemperatur mehr als ausreichend ist. Das Heizen über Energiespeicher bringt somit keine Verschlechterung der Funktion mit sich.If the heater has reached its operating temperature, the primary energy source 7, if it is not needed for other purposes except the operation of the heater, for example, during breaks, are switched off, so that the heater is now supplied via the energy storage 15. Heating with energy storage only serves to keep the screed warm, so that the completely installed heating power does not have to be applied. It has been found that even half the heating power for holding the target temperature is more than sufficient. Heating via energy storage thus brings no deterioration of the function with it.

Der Energiespeicher 15 wird während Betriebsphasen der Primärenergiequelle aufgeladen, in der die Primärenergiequelle 7 mehr Energie bereitstellen kann als von den übrigen Antrieben 12, 13, 14 benötigt wird (z.B. bei weniger als 95 % Auslastung). Da der Straßenfertiger für eine maximale Spitzenleistung ausgelegt ist, ist dieses Auffüllen problemlos möglich, ohne Funktionseinbußen an den anderen Antrieben. Zudem wird ein als Primärenergiequelle 7 eingesetzter Dieselmotor nun fast ausschließlich in einem für den Dieselverbrauch günstigen Motorkennfeld betrieben.The energy storage 15 is charged during operating phases of the primary energy source in which the primary energy source 7 can provide more energy than is needed by the remaining drives 12, 13, 14 (e.g., at less than 95% utilization). Since the paver is designed for maximum peak performance, this filling is easily possible, without sacrificing performance on the other drives. In addition, a diesel engine used as a primary energy source 7 is now operated almost exclusively in a favorable for diesel consumption engine map.

Fig. 3 zeigt ein Ablaufdiagramm der Steuerung eines bevorzugten Ausführungsbeispiels der Erfindung, wobei eine Bohlenheizung als Verbraucher und ein Dieselmotor als Primärenergiequelle fungiert. Bei Betriebsbeginn wird zunächst festgestellt, ob überhaupt Antriebsleistung benötigt wird. Wenn lediglich Heizleistung an der Bohle benötigt wird, und die anderen Antriebe keine Energie erfordern, wird festgestellt, ob der Energiespeicher noch betriebsbereit ist. Wenn Antriebsleistung für die Hydraulikpumpen benötigt wird, wird der Motor gestartet. Wird die gesamte Dieselmotorleistung über 95 % für andere Zwecke beansprucht, wird der Generator ausgeschaltet. Wird nicht die gesamte Antriebsleistung für andere Zwecke benötigt, wird über den Generator die Heizung betrieben, falls die Bohlensolltemperatur noch nicht erreicht wurde, oder es wird der Energiespeicher geladen, falls der Energiespeicher noch nicht voll aufgeladen ist. Wird bei Betriebsbeginn festgestellt, dass der Energiespeicher leer bzw. nicht betriebsbereit ist, so wird der Dieselmotor auch dann gestartet, wenn keine Antriebsleistung für andere Antriebe benötigt wird. Fig. 3 shows a flow diagram of the control of a preferred embodiment of the invention, wherein a screed heater acts as a consumer and a diesel engine as a primary energy source. At start of operation, it is first determined whether drive power is required at all. If only heating power is needed on the screed, and the other drives require no energy, it is determined whether the energy storage is still operational. When drive power is required for the hydraulic pumps, the engine is started. If the total diesel engine power exceeds 95% for other purposes, the generator is switched off. If not the entire drive power is needed for other purposes, the heater is operated by the generator, if the bottom target temperature has not yet been reached, or it is charged the energy storage, if the energy storage is not fully charged. If it is determined at the beginning of operation that the energy storage is empty or not ready for operation, the diesel engine is started even if no drive power is required for other drives.

Claims (6)

  1. Road paver (1), having a primary energy source (7), in particular an internal combustion engine, and an electrical load, which is supplied with electrical energy by a generator (8) operated by the primary energy source (7), wherein the load is a screed heating system (10), characterised in that the generator (8) is connected to an energy storage (15) which selectively supplies the load with energy.
  2. Road paver according to claim 1, characterised in that the energy storage (15) includes a battery, in particular a lead-acid battery.
  3. Road paver according to claim 1 or 2, characterised in that the energy storage (15) includes capacitors or storage batteries.
  4. Road paver according to one of claims 1 to 3, characterised in that the energy storage (15) includes a heat storage.
  5. Method of operating an electrical load (10) of a road paver (1) via a generator (8) operated by a primary energy source (7), wherein the load is a screed heating system (10), characterised in that the generator (8) charges an energy storage (15) which selectively operates the load (10) as an alternative to the primary energy source (7).
  6. Method according to claim 5, characterised in that the energy storage (15) is charged if the load on the primary energy source (7) is less than a predetermined value, in particular less than 95%.
EP09014846.1A 2009-11-30 2009-11-30 Road finisher Active EP2333158B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09014846T PL2333158T5 (en) 2009-11-30 2009-11-30 Road finisher
EP09014846.1A EP2333158B2 (en) 2009-11-30 2009-11-30 Road finisher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09014846.1A EP2333158B2 (en) 2009-11-30 2009-11-30 Road finisher

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EP2333158A1 EP2333158A1 (en) 2011-06-15
EP2333158B1 EP2333158B1 (en) 2014-04-02
EP2333158B2 true EP2333158B2 (en) 2017-12-06

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Cited By (1)

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EP4528033A1 (en) 2023-09-21 2025-03-26 Joseph Vögele AG Road construction machine

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EP3075909B1 (en) * 2015-03-30 2017-09-06 Joseph Vögele AG Road construction machine with network for data transmission and use of a portion of a power line
DE102015012298A1 (en) 2015-09-23 2017-03-23 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Method of operating a self-propelled road paver and paver therefor
CN106758706A (en) * 2017-03-07 2017-05-31 陕西中大机械集团有限责任公司 Ironing plate of asphalt spreader heater
EP4183925A1 (en) * 2021-11-18 2023-05-24 Joseph Vögele AG Heating system for a construction machine

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Also Published As

Publication number Publication date
EP2333158A1 (en) 2011-06-15
EP2333158B1 (en) 2014-04-02
PL2333158T5 (en) 2018-05-30
PL2333158T3 (en) 2014-08-29

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