EP2646780A1 - Method for determining an ecological route attribute - Google Patents

Method for determining an ecological route attribute

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Publication number
EP2646780A1
EP2646780A1 EP11794437.1A EP11794437A EP2646780A1 EP 2646780 A1 EP2646780 A1 EP 2646780A1 EP 11794437 A EP11794437 A EP 11794437A EP 2646780 A1 EP2646780 A1 EP 2646780A1
Authority
EP
European Patent Office
Prior art keywords
eco
route
attributes
motor vehicle
determined
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11794437.1A
Other languages
German (de)
French (fr)
Inventor
Christian Gerstberger
Stefan Wiebel
Werner Richter
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP2646780A1 publication Critical patent/EP2646780A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
    • G01C21/3469—Fuel consumption; Energy use; Emission aspects

Definitions

  • the invention relates to a method for determining an eco-route attribute, which is used in particular for determining a route.
  • the road sections are assigned different cost elements, such as travel time or route.
  • the invention is based on the object to improve the prior art. This object is solved by the features of the independent claim. Advantageous developments of the invention can be found in the dependent claims.
  • An inventive method for determining an eco-Streckenattributes provides that - triggered by an event or from time to time or repeatedly after driving a predetermined route length - by at least one motor vehicle, in particular by a corresponding on-board computer, at least one current energy consumption value is determined.
  • the energy consumption value is, for example, a path that has just been traveled or an energy value averaged over a just-traveled time (energy requirement, energy requirement per time, energy requirement per route, fuel requirement, fuel demand per time, fuel requirement per route, energy consumption). tu ngs requirement, etc.), of the motor vehicle, in particular on the corresponding
  • At least one current measuring location is determined by the motor vehicle, for example by means of a satellite-supported alignment method.
  • At least one eco location attribute comprising the measuring location and the current energy consumption value is formed by the motor vehicle, which is then sent to a central device, for example a central navigation server, a central map server and / or a central service computer.
  • a central device for example a central navigation server, a central map server and / or a central service computer.
  • the central device determines an eco-route attribute based on a plurality of received eco-local attributes, each of which includes a measuring location, which energy consumption (energy requirement, energy requirement per time,
  • the route section comprises the measuring locations or is determined by the measuring locations.
  • the measuring locations are located on the route section or in the immediate vicinity of the route section.
  • a current measurement time is determined by at least one motor vehicle, that the eco-local attribute comprises the measurement time, and that the received eco-system is determined by the central device.
  • Local attributes are temporally categorized as a function of the respectively associated measuring time and assigned to correspondingly categorized eco-route attributes.
  • time-categorized eco-route attributes are formed, which can be used selectively for route calculation at the appropriate times.
  • eco-local attribute comprises the vehicle type and / or engine type of the motor vehicle, for example, read from a memory, and that the received eco-local attributes as a function of the respectively associated vehicle type and / or by the central device or engine type and are categorized according to vehicle type or engine type according to categorized eco-route attributes.
  • eco-route attributes are formed according to vehicle type and / or engine type, which can be used selectively for calculating routes for energy-efficient routes for corresponding vehicle types and / or vehicles with corresponding engine types.
  • a cost-optimized route is determined based on a plurality of eco-route attributes, wherein the cost of a route, if necessary among others, are determined in response to a plurality of eco-route attributes.
  • such a cost-optimized route is determined by the central device, and information by which the particular route is described is sent to a motor vehicle, in particular a navigation system of a motor vehicle.
  • a plurality of eco-route attributes is sent from the central device to at least one motor vehicle, and a route is determined by the motor vehicle, in particular a navigation system of the motor vehicle, in response to a plurality of eco-route attributes.
  • Figure 1 shows a simplified communication system comprising a navigation system and a central device.
  • FIG. 1 shows a communication system which, as part of a motor vehicle, comprises a navigation system NS and, as part of a central infrastructure, a central unit ZE, for example a navigation server.
  • a navigation system NS and, as part of a central infrastructure, a central unit ZE, for example a navigation server.
  • a central unit ZE for example a navigation server.
  • the navigation system NS includes, among other things, a position determination device POS known per se, a known route planner RPN, a memory device SPEN for storing eco-route attributes and eco-location attributes, and a communication unit KEN, such as a mobile radio module, for exchanging information via a communication link KV with the central unit ZE, in particular for sending eco-local attributes and for receiving eco-route attributes.
  • the communication unit KEN or the memory device SPEN can be implemented in a different housing than the route planner RPN, and can also be used for other purposes.
  • the central unit ZE comprises a route planner RPZ known per se, a storage device SPEZ for storing eco-route attributes and eco-location attributes, and a communication unit KEZ, such as a mobile radio module for receiving eco-location attributes of a plurality of motor vehicles, in particular navigation systems, and for sending eco-friendly Track attributes to a variety of vehicles, especially navigation systems.
  • the central unit ZE also has an eco-link attribute generator, not shown, by means of which, in response to received eco-local attributes, respectively associated ecological route attributes are generated or updated.
  • the eco-link attribute generator can be implemented in terms of hardware technology by the same computing device as the route planner RPZ. In the following, a method for determining eco-route attributes will be explained, which makes use of the units just described by being set up according to the program.
  • an average fuel consumption (liters / kilometer) is determined every 500 meters, which was required to move the vehicle over the past 500 meters across the road.
  • the current energy consumption value determined in this way (fuel requirement, fuel consumption) is linked to at least one measurement location in terms of data and the result is temporarily stored as an eco-local attribute.
  • the location used is, for example, the location determined by a GPS system of the motor vehicle or navigation system NS at the beginning of the 500 meters, and / or the location determined by a GPS system at the end of the 500 meters, or uses a location that between these two places.
  • the eco-local attribute is also assigned a measuring time and / or a vehicle type or engine type. Corresponding information is generated by known units of the motor vehicle or read from known units of the motor vehicle.
  • a multiplicity of eco-local attributes thus determined and temporarily stored are combined to form an eco-local attribute message, and sent from the communication unit KEN of the navigation system to the communication unit KEZ the central device ZE
  • Corresponding methods are performed by a plurality of navigation systems NS of a large number of motor vehicles.
  • the eco-local attributes received from a plurality of navigation systems NS are evaluated. For this purpose, first the location of an eco-local attribute is compared with predetermined in the central device ZE, preferably 500 meters long, sections. The energy consumption value of an eco-local attribute is assigned to the road section into which the measurement location of the respective eco-local attribute falls. From the plurality of energy consumption values thus allocated to a road section, an eco-route attribute is formed by averaging, which describes an average energy consumption value for a road section.
  • the resulting eco-route attributes can be categorized according to measurement time and / or engine type or vehicle type.
  • the thus determined eco-route attributes are stored in a database of the central device ZE or after transmission to a navigation system NS in a database of the navigation system NS. If a route optimized with regard to energy consumption is to be determined later by the central device ZE or a navigation system NS in a manner known per se, the eco-route attributes are used as or as one of several cost elements for driving on the associated route section.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

The subject matter of the invention is also a method for determining an ecological route attribute, in which at least one current energy consumption value is determined by at least one motor vehicle, in which a current measurement location is determined by the motor vehicle, in which at least one ecological location attribute, which comprises the measurement location and the current energy consumption value, is formed by the motor vehicle, in which at least one ecological location attribute is transmitted to a central device, and in which an ecological route attribute is determined by the central device on the basis of a multiplicity of received ecological location attributes which in each case comprise a measurement location, which ecological route attribute describes an energy consumption on a route section which has a prescribed spatial relationship with the measurement locations.

Description

Verfahren zum Bestimmen eines Öko-Streckenattributes  Method for determining an eco-route attribute
Die Erfindung betrifft ein Verfahren zum Bestimmen eines Öko-Streckenattributes, das insbesondere zur Bestimmung einer Route verwendet wird. The invention relates to a method for determining an eco-route attribute, which is used in particular for determining a route.
Mit Navigationssystemen ist es möglich, basierend auf einer digitalen Straßenkarte nach verschiedenen Kriterien optimierte Routen zwischen einem Startpunkt und einem Zielpunkt zu berechnen. Dabei sind den Straßenabschnitten verschiedene Kostenelemente, wie beispielsweise Fahrzeit oder Fahrstrecke, zugeordnet. With navigation systems, it is possible to calculate optimized routes between a starting point and a destination point based on a digital road map according to various criteria. In this case, the road sections are assigned different cost elements, such as travel time or route.
Systeme, bei denen den Straßenabschnitten ein Energieverbrauch als Kostenelement zugeordnet ist, werden noch nicht eingesetzt. Ein Problem dabei besteht darin, dass die Energie, die für das Befahren eines Straßenabschnittes erforderlich ist, zentral anhand von Geodäten schwer zu ermitteln ist und zudem von Fahrzeug typ zu Fahrzeugtyp stark variiert. Systems that allocate energy consumption as a cost component to road sections are not yet in use. A problem with this is that the energy required for driving on a road section is difficult to determine centrally by means of geodesics and also varies greatly from vehicle type to vehicle type.
Der Erfindung liegt nun die Aufgabe zugrunde, den Stand der Technik zu verbessern. Diese Aufgabe wird durch die Merkmale des unabhängigen Anspruchs gelöst. Vorteilhafte Weiterbildungen der Erfindung sind den abhängigen Ansprüchen zu entnehmen. The invention is based on the object to improve the prior art. This object is solved by the features of the independent claim. Advantageous developments of the invention can be found in the dependent claims.
Ein erfindungsgemäßes Verfahren zum Bestimmen eines Öko-Streckenattributes sieht vor, dass - ausgelöst durch ein Ereignis oder von Zeit zu Zeit oder wiederholt nach dem Befahren einer vorgegebenen Streckenlänge - durch mindestens ein Kraftfahrzeug, insbesondere durch einen entsprechenden Bordcomputer, mindestens ein aktueller Energieverbrauchswert bestimmt wird. Bei dem Energieverbrauchswert handelt es sich beispielsweise um einen über einen soeben befahrenen Weg bzw. um einen über eine soeben gefahrene Zeit gemittel- ten Energieverbrauchswert (Energiebedarf, Energiebedarf pro Zeit, Energiebedarf pro Weg, Treibstoffbedarf, Treibstoffbedarf pro Zeit, Treibstoffbedarf pro Weg, Leis- tu ngs bedarf, etc.), des Kraftfahrzeuges, insbesondere auf dem entsprechendenAn inventive method for determining an eco-Streckenattributes provides that - triggered by an event or from time to time or repeatedly after driving a predetermined route length - by at least one motor vehicle, in particular by a corresponding on-board computer, at least one current energy consumption value is determined. The energy consumption value is, for example, a path that has just been traveled or an energy value averaged over a just-traveled time (energy requirement, energy requirement per time, energy requirement per route, fuel requirement, fuel demand per time, fuel requirement per route, energy consumption). tu ngs requirement, etc.), of the motor vehicle, in particular on the corresponding
Routen- oder Streckenabschnitt. Route or section of the route.
Durch das Kraftfahrzeug wird, beispielsweise durch ein satellitengestütztes Or- tungsverfahren, zudem mindestens ein aktueller Messort (Bestimmungsort) bestimmt. In addition, at least one current measuring location (destination) is determined by the motor vehicle, for example by means of a satellite-supported alignment method.
Zudem wird durch das Kraftfahrzeug mindestens ein den Messort und den aktuellen Energieverbrauchswert umfassendes Öko-Ortsattribut gebildet, das dann an eine zentrale Einrichtung, beispielsweise einen zentralen Navigationsserver, einen zentralen Kartenserver und/oder einen zentralen Service-Rechner, gesendet wird. In addition, at least one eco location attribute comprising the measuring location and the current energy consumption value is formed by the motor vehicle, which is then sent to a central device, for example a central navigation server, a central map server and / or a central service computer.
Durch die zentrale Einrichtung wird basierend auf einer Vielzahl von empfangenen Öko-Ortsattributen, die jeweils einen Messort umfassen, ein Öko-Streckenattribut bestimmt, das einen Energieverbrauch (Energiebedarf, Energiebedarf pro Zeit,The central device determines an eco-route attribute based on a plurality of received eco-local attributes, each of which includes a measuring location, which energy consumption (energy requirement, energy requirement per time,
Energiebedarf pro Weg, Treibstoffbedarf, Treibstoffbedarf pro Zeit, Treibstoffbedarf pro Weg, Leistungsbedarf, etc.) auf einem Streckenabschnitt beschreibt, der in einer vorgegebenen örtlichen Beziehung zu dem Messort zumindest eines (der genannten Vielzahl von empfangenen Öko-Ortsattributen) Öko-Ortsattributes steht, oder der in einer vorgegebenen örtlichen Beziehung zu den Messorten der genannten Vielzahl von empfangenen Öko-Ortsattributen steht. Energy demand per path, fuel demand, fuel demand per time, fuel demand per path, power requirement, etc.) on a link describing at least one (said plurality of received eco-locational attributes) eco-locational attributes in a given local relationship to the measurement location, or is in a predetermined local relationship to the measurement locations of said plurality of received eco-location attributes.
Dadurch ist es möglich, in einer zentralen Einrichtung lokal ermittelte Energieverbrauchswerte ortsaufgelöst, insbesondere streckenabschnittsaufgelöst, zu aggregie- ren, um sie beispielsweise für eine Routenberechnung zur Verfügung zu stellen. As a result, it is possible to aggregate locally determined energy consumption values in a centralized device in a spatially resolved manner, in particular in a segment-resolved manner, in order to make them available, for example, for a route calculation.
Es ist eine Weiterbildung der Erfindung, dass der Streckenabschnitt die Messorte umfasst oder durch die Messorte bestimmt ist. Beispielsweise liegen die Messorte auf dem Streckenabschnitt oder in unmittelbarer Nähe zum Streckenabschnitt. Da- durch können Öko-Ortsattribute einem Streckenabschnitt zugeordnet werden. It is a further development of the invention that the route section comprises the measuring locations or is determined by the measuring locations. For example, the measuring locations are located on the route section or in the immediate vicinity of the route section. As a result, eco-local attributes can be assigned to a route section.
Eine andere Weiterbildung der Erfindung sieht vor, dass durch mindestens ein Kraftfahrzeug eine aktuelle Messzeit bestimmt wird, dass das Öko-Ortsattribut die Messzeit umfasst, und dass durch die zentrale Einrichtung die empfangenen Öko- Ortsattribute in Abhängigkeit von der jeweils zugehörigen Messzeit zeitlich kategori- siert werden und zeitlich entsprechend kategorisierten Öko-Streckenattributen zugeordnet werden. Another refinement of the invention provides that a current measurement time is determined by at least one motor vehicle, that the eco-local attribute comprises the measurement time, and that the received eco-system is determined by the central device. Local attributes are temporally categorized as a function of the respectively associated measuring time and assigned to correspondingly categorized eco-route attributes.
Dadurch werden zeitlich kategorisierte Öko-Streckenattribute gebildet, die zu den entsprechenden Zeiten selektiv zur Routenberechnung verwendet werden können. As a result, time-categorized eco-route attributes are formed, which can be used selectively for route calculation at the appropriate times.
Eine alternative oder ergänzende Weiterbildung sieht vor, dass das Öko-Ortsattribut den, beispielsweise aus einem Speicher gelesenen, Fahrzeugtyp und/oder Motortyp des Kraftfahrzeuges umfasst, und dass durch die zentrale Einrichtung die empfangenen Öko-Ortsattribute in Abhängigkeit von dem jeweils zugehörigen Fahrzeugtyp und/oder Motortyp kategorisiert werden und hinsichtlich Fahrzeugtyp oder Motortyp entsprechend kategorisierten Öko-Streckenattributen zugeordnet werden. An alternative or additional refinement provides that the eco-local attribute comprises the vehicle type and / or engine type of the motor vehicle, for example, read from a memory, and that the received eco-local attributes as a function of the respectively associated vehicle type and / or by the central device or engine type and are categorized according to vehicle type or engine type according to categorized eco-route attributes.
Dadurch werden nach Fahrzeugtyp und/oder Motortyp kategorisierte Öko- Streckenattribute gebildet, die bei der Berechnung von energieeffizienten Routen für entsprechende Fahrzeugtypen und/oder Fahrzeuge mit entsprechenden Motortypen selektiv zur Routenberechnung verwendet werden können. As a result, categorized eco-route attributes are formed according to vehicle type and / or engine type, which can be used selectively for calculating routes for energy-efficient routes for corresponding vehicle types and / or vehicles with corresponding engine types.
Besonders vorteilhaft ist der Einsatz des erfindungsgemäßen Verfahrens bzw. der Einsatz der durch ein erfindungsgemäßes Verfahren gebildeten Öko- Streckenattribute im Rahmen der Berechnung einer energieeffizienten Route. The use of the method according to the invention or the use of the eco-route attributes formed by a method according to the invention in the context of the calculation of an energy-efficient route is particularly advantageous.
Vorzugsweise wird dabei eine kostenoptimierte Route basierend auf einer Vielzahl von Öko-Streckenattributen bestimmt, wobei die Kosten einer Route, gegebenenfalls unter anderem, in Antwort auf eine Vielzahl von Öko-Streckenattributen bestimmt werden. Preferably, a cost-optimized route is determined based on a plurality of eco-route attributes, wherein the cost of a route, if necessary among others, are determined in response to a plurality of eco-route attributes.
Bei einer bevorzugten Ausführungsform wird eine derart kostenoptimierte Route durch die zentrale Einrichtung bestimmt, und Informationen, durch welche die bestimmte Route beschrieben wird, an ein Kraftfahrzeug, insbesondere ein Navigationssystem eines Kraftfahrzeuges, gesendet. Alternativ oder ergänzend dazu ist vorgesehen, dass eine Vielzahl von Öko- Streckenattributen von der zentralen Einrichtung an zumindest ein Kraftfahrzeug gesendet wird, und durch das Kraftfahrzeug, insbesondere ein Navigationssystem des Kraftfahrzeuges, in Antwort auf eine Vielzahl von Öko-Streckenattributen eine Route bestimmt wird. In a preferred embodiment, such a cost-optimized route is determined by the central device, and information by which the particular route is described is sent to a motor vehicle, in particular a navigation system of a motor vehicle. Alternatively or additionally, it is provided that a plurality of eco-route attributes is sent from the central device to at least one motor vehicle, and a route is determined by the motor vehicle, in particular a navigation system of the motor vehicle, in response to a plurality of eco-route attributes.
Im Folgenden wird die Erfindung anhand von Beispielen unter Bezugnahme auf die folgende Figur näher erläutert: Figur 1 zeigt ein vereinfachtes Kommunikationssystem umfassend ein Navigationssystem und eine zentrale Einrichtung. In the following the invention is explained in more detail by means of examples with reference to the following figure: Figure 1 shows a simplified communication system comprising a navigation system and a central device.
Figur 1 zeigt ein Kommunikationssystem, das als Teil eines Kraftfahrzeuges ein Navigationssystem NS und als Teil einer zentralen Infrastruktur eine zentrale Einheit ZE, beispielsweise einen Navigations-Server, umfasst. FIG. 1 shows a communication system which, as part of a motor vehicle, comprises a navigation system NS and, as part of a central infrastructure, a central unit ZE, for example a navigation server.
Das Navigationssystem NS umfasst unter anderem eine an sich bekannte Positi- onsermittlungseinrichtung POS, einen an sich bekannten Routenplaner RPN, eine Speichereinrichtung SPEN zum Speichern von Öko-Streckenattributen und Öko- Ortsattributen und eine Kommunikationseinheit KEN, wie beispielsweise ein Mobilfunkmodul, zum Informationsaustausch über eine Kommunikationsverbindung KV mit der zentralen Einheit ZE, insbesondere zum Senden von Öko-Ortsattributen und zum Empfangen von Öko-Streckenattributen. Insbesondere die Kommunikationseinheit KEN oder die Speichereinrichtung SPEN können dabei in einem anderen Gehäuse als der Routenplaner RPN realisiert sein, und zusätzlich auch für weitere Zwecke eingesetzt werden. The navigation system NS includes, among other things, a position determination device POS known per se, a known route planner RPN, a memory device SPEN for storing eco-route attributes and eco-location attributes, and a communication unit KEN, such as a mobile radio module, for exchanging information via a communication link KV with the central unit ZE, in particular for sending eco-local attributes and for receiving eco-route attributes. In particular, the communication unit KEN or the memory device SPEN can be implemented in a different housing than the route planner RPN, and can also be used for other purposes.
Die zentrale Einheit ZE umfasst einen an sich bekannten Routenplaner RPZ, eine Speichereinrichtung SPEZ zum Speichern von Öko-Streckenattributen und Öko- Ortsattributen und eine Kommunikationseinheit KEZ, wie beispielsweise ein Mobilfunkmodul zum Empfangen von Öko-Ortsattributen von einer Vielzahl von Kraftfahrzeugen, insbesondere Navigationssystemen, und zum Senden von Öko- Streckenattributen an eine Vielzahl von Kraftfahrzeugen, insbesondere Navigationssystemen. The central unit ZE comprises a route planner RPZ known per se, a storage device SPEZ for storing eco-route attributes and eco-location attributes, and a communication unit KEZ, such as a mobile radio module for receiving eco-location attributes of a plurality of motor vehicles, in particular navigation systems, and for sending eco-friendly Track attributes to a variety of vehicles, especially navigation systems.
Die zentrale Einheit ZE verfügt zudem über einen nicht dargestellten Öko- Streckenattribut-Generator, durch den in Antwort auf empfangene Öko-Ortsattribute, jeweils zugehörige Öko-Streckenattribute generiert oder aktualisiert werden. Der Öko-Streckenattribut-Generator kann hardwaretechnisch durch die gleiche Recheneinrichtung realisiert sein, wie der Routenplaner RPZ. Im Folgenden wird nun ein Verfahren zum Bestimmen von Öko-Streckenattributen erläutert, das von den soeben beschriebenen Einheiten Gebrauch macht, indem diese programmtechnisch entsprechend eingerichtet sind. The central unit ZE also has an eco-link attribute generator, not shown, by means of which, in response to received eco-local attributes, respectively associated ecological route attributes are generated or updated. The eco-link attribute generator can be implemented in terms of hardware technology by the same computing device as the route planner RPZ. In the following, a method for determining eco-route attributes will be explained, which makes use of the units just described by being set up according to the program.
Es wird davon ausgegangen, dass das Navigationssystem NS, das sich innerhalb eines Fahrzeuges befindet, eine dem Navigationssystem NS bekannte Straße "befährt". It is assumed that the navigation system NS, which is located inside a vehicle, "travels" a road known to the navigation system NS.
In an sich bekannter Weise wird beispielsweise alle 500 Meter ein durchschnittlicher Treibstoffverbrauch (Liter/Kilometer) bestimmt, der erforderlich war, um das Fahr- zeug die zurückliegenden 500 Meter über die Straße zu bewegen. In known manner, for example, an average fuel consumption (liters / kilometer) is determined every 500 meters, which was required to move the vehicle over the past 500 meters across the road.
Der so ermittelte aktuelle Energieverbrauchswert (Treibstoffbedarf, Treibstoffverbrauch) wird datentechnisch mit zumindest einem Messort verknüpft und das Ergebnis als Öko-Ortsattribut zwischengespeichert. The current energy consumption value determined in this way (fuel requirement, fuel consumption) is linked to at least one measurement location in terms of data and the result is temporarily stored as an eco-local attribute.
Als Messort wird beispielsweise der durch ein GPS-System des Kraftfahrzeuges bzw. des Navigationssystems NS ermittelte Ort zu Beginn der 500 Meter verwendet, und/oder der durch ein GPS-System ermittelte Ort am Ende der 500 Meter verwendet, oder ein Ort verwendet, der zwischen beiden genannten Orten liegt. The location used is, for example, the location determined by a GPS system of the motor vehicle or navigation system NS at the beginning of the 500 meters, and / or the location determined by a GPS system at the end of the 500 meters, or uses a location that between these two places.
Dem Öko-Ortsattribut wird je nach Ausführungsvariante noch eine Messzeit und/oder ein Fahrzeug typ bzw. Motortyp zugeordnet. Entsprechende Informationen werden durch an sich bekannte Einheiten des Kraftfahrzeuges generiert oder aus an sich bekannten Einheiten des Kraftfahrzeuges gelesen. Jeweils nach der Ermittlung einer vorgegebenen Vielzahl von Öko-Ortsattributen, jeweils nach dem Ablauf einer vorgegebenen Zeit oder ausgelöst durch ein anderes vorgegebenes Ereignis wird eine Vielzahl von derart ermittelten und zwischenge- speicherten Öko-Ortsattributen zu einer Öko-Ortsattribut-Nachricht zusammenge- fasst und von der Kommunikationseinheit KEN des Navigationssystems an die Kommunikationseinheit KEZ der zentralen Einrichtung ZE gesendet Depending on the variant embodiment, the eco-local attribute is also assigned a measuring time and / or a vehicle type or engine type. Corresponding information is generated by known units of the motor vehicle or read from known units of the motor vehicle. In each case after the determination of a predetermined plurality of eco-local attributes, respectively after the expiration of a predetermined time or triggered by another predetermined event, a multiplicity of eco-local attributes thus determined and temporarily stored are combined to form an eco-local attribute message, and sent from the communication unit KEN of the navigation system to the communication unit KEZ the central device ZE
Entsprechende Verfahren werden durch eine Vielzahl von Navigationssystemen NS einer Vielzahl von Kraftfahrzeugen durchgeführt. Corresponding methods are performed by a plurality of navigation systems NS of a large number of motor vehicles.
In der zentralen Einrichtung ZE werden die von einer Vielzahl von Navigationssystemen NS empfangenen Öko-Ortsattribute ausgewertet. Dazu wird zunächst der Messort eines Öko-Ortsattributes mit in der zentralen Einrichtung ZE vorgegebenen, vorzugsweise 500 Meter langen, Streckenabschnitten verglichen. Der Energieverbrauchswert eines Öko-Ortsattributes wird dem Streckenabschnitt zugeordnet, in den der Messort, des jeweiligen Öko-Ortsattributes fällt Aus der Vielzahl der derart einem Streckenabschnitt zugeordneten Energieverbrauchswerte wird durch Durchschnittsbildung ein Öko-Streckenattribut gebildet, das einen durchschnittlichen Energieverbrauchswert für einen Streckenabschnitt beschreibt. In the central facility ZE, the eco-local attributes received from a plurality of navigation systems NS are evaluated. For this purpose, first the location of an eco-local attribute is compared with predetermined in the central device ZE, preferably 500 meters long, sections. The energy consumption value of an eco-local attribute is assigned to the road section into which the measurement location of the respective eco-local attribute falls. From the plurality of energy consumption values thus allocated to a road section, an eco-route attribute is formed by averaging, which describes an average energy consumption value for a road section.
Enthalten die Öko-Ortsattribute auch eine Messzeit und/oder einen Motortyp bzw. einen Fahrzeugtyp, so können die resultierenden Öko-Streckenattribute nach Messzeit und/oder Motortyp bzw. Fahrzeugtyp kategorisiert werden. If the eco-local attributes also include a measurement time and / or an engine type or a vehicle type, the resulting eco-route attributes can be categorized according to measurement time and / or engine type or vehicle type.
Die derart ermittelten Öko-Streckenattribute werden in einer Datenbank der zentralen Einrichtung ZE oder nach Übermittlung an ein Navigationssystem NS in einer Datenbank des Navigationssystems NS abgespeichert. Soll später durch die zentrale Einrichtung ZE oder ein Navigationssystem NS in an sich bekannter Weise eine hinsichtlich Energieverbrauch optimierte Route bestimmt werden, so werden die Öko-Streckenattribute als das oder als eines von mehreren Kostenelementen für das Befahren des zugehörigen Streckenabschnittes verwendet. The thus determined eco-route attributes are stored in a database of the central device ZE or after transmission to a navigation system NS in a database of the navigation system NS. If a route optimized with regard to energy consumption is to be determined later by the central device ZE or a navigation system NS in a manner known per se, the eco-route attributes are used as or as one of several cost elements for driving on the associated route section.

Claims

Patentansprüche claims
1. Verfahren zum Bestimmen eines Öko-Streckenattributes, 1. A method for determining an eco-route attribute,
- bei dem durch mindestens ein Kraftfahrzeug mindestens ein aktueller Energie- Verbrauchswert bestimmt wird, in which at least one current energy consumption value is determined by at least one motor vehicle,
bei dem durch das Kraftfahrzeug mindestens ein aktueller Messort bestimmt wird,  in which at least one current measuring location is determined by the motor vehicle,
- bei dem durch das Kraftfahrzeug mindestens ein den Messort und den aktuel- len Energieverbrauchswert umfassendes Öko-Ortsattribut gebildet wird, in which at least one eco-local attribute comprising the measuring location and the current energy consumption value is formed by the motor vehicle,
- bei dem mindestens ein Öko-Ortsattribut an eine zentrale Einrichtung gesendet wird, und in which at least one eco-local attribute is sent to a central facility, and
- bei dem durch die zentrale Einrichtung basierend auf einer Vielzahl von empfangenen Öko-Ortsattributen, die jeweils einen Messort umfassen, ein Öko- Streckenattribut bestimmt wird, das einen Energieverbrauch auf einem Streckenabschnitt beschreibt, der in einer vorgegebenen örtlichen Beziehung zu den Messorten steht.  in which an eco-link attribute is determined by the central device based on a plurality of received eco-local attributes, each comprising a measurement location, which describes an energy consumption on a link segment that is in a predetermined local relationship to the measurement locations.
2. Verfahren nach Anspruch 1 , 2. The method according to claim 1,
bei dem der Streckenabschnitt die Messorte umfasst oder durch die Messorte bestimmt ist.  in which the section of the route covers the measuring locations or is determined by the measuring locations.
3. Verfahren nach einem der vorhergehenden Ansprüche, 3. The method according to any one of the preceding claims,
bei dem durch mindestens ein Kraftfahrzeug eine aktuelle Messzeit bestimmt wird,  in which a current measuring time is determined by at least one motor vehicle,
bei dem das Öko-Ortsattribut die Messzeit umfasst, und  where the eco-local attribute includes the measurement time, and
bei dem durch die zentrale Einrichtung die empfangenen Öko-Ortsattribute in Abhängigkeit von der jeweils zugehörigen Messzeit zeitlich kategorisiert werden und zeitlich entsprechend kategorisierten Öko-Streckenattributen zugeordnet werden.  in which the eco-local attributes received by the central device are temporally categorized as a function of the respectively associated measuring time and assigned to correspondingly categorized eco-route attributes in time.
4. Verfahren nach einem der vorhergehenden Ansprüche, 4. The method according to any one of the preceding claims,
bei dem das Öko-Ortsattribut den Fahrzeugtyp oder Motortyp des Kraftfahrzeuges umfasst, und bei dem durch die zentrale Einrichtung die empfangenen Öko-Ortsattribute in Abhängigkeit von dem jeweils zugehörigen Fahrzeugtyp oder Motortyp katego- risiert werden und hinsichtlich Fahrzeugtyp oder Motortyp entsprechend katego- risierten Öko-Streckenattributen zugeordnet werden. wherein the eco-local attribute comprises the vehicle type or engine type of the motor vehicle, and in which the eco-local attributes received by the central device are categorized as a function of the respectively associated vehicle type or engine type and are assigned according to vehicle type or engine type according to categorized eco-route attributes.
5. Verfahren nach einem der vorhergehenden Ansprüche, 5. The method according to any one of the preceding claims,
bei dem eine Route basierend auf einer Vielzahl von Öko-Streckenattributen bestimmt wird.  in which a route is determined based on a plurality of eco-route attributes.
6. Verfahren nach einem der vorhergehenden Ansprüche, 6. The method according to any one of the preceding claims,
bei dem eine kostenoptimierte Route basierend auf einer Vielzahl von Öko- Streckenattributen bestimmt wird, wobei die Kosten einer Route in Antwort auf eine Vielzahl von Öko-Streckenattributen bestimmt werden.  in which a cost-optimized route is determined based on a plurality of eco-route attributes, wherein the cost of a route is determined in response to a plurality of eco-route attributes.
7. Verfahren nach einem der vorhergehenden Ansprüche, 7. The method according to any one of the preceding claims,
bei dem eine Route durch die zentrale Einrichtung bestimmt wird, und Informationen, durch welche die bestimmte Route beschrieben wird, an ein Kraftfahrzeug, insbesondere ein Navigationssystem eines Kraftfahrzeuges, gesendet werden.  in which a route is determined by the central device, and information by which the specific route is described, to a motor vehicle, in particular a navigation system of a motor vehicle, are sent.
8. Verfahren nach einem der vorhergehenden Ansprüche, 8. The method according to any one of the preceding claims,
bei dem eine Vielzahl von Öko-Streckenattributen an zumindest ein Kraftfahrzeug gesendet wird, und durch das Kraftfahrzeug, insbesondere ein Navigationssystem eines Kraftfahrzeuges, in Antwort auf eine Vielzahl von Öko- Streckenattributen eine Route bestimmt wird.  in which a plurality of eco-route attributes is sent to at least one motor vehicle, and by the motor vehicle, in particular a navigation system of a motor vehicle, a route is determined in response to a plurality of eco-route attributes.
EP11794437.1A 2010-12-01 2011-11-25 Method for determining an ecological route attribute Withdrawn EP2646780A1 (en)

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