EP0809216B1 - Data communication device for a vehicle towed by a motor vehicle - Google Patents

Data communication device for a vehicle towed by a motor vehicle Download PDF

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Publication number
EP0809216B1
EP0809216B1 EP97103680A EP97103680A EP0809216B1 EP 0809216 B1 EP0809216 B1 EP 0809216B1 EP 97103680 A EP97103680 A EP 97103680A EP 97103680 A EP97103680 A EP 97103680A EP 0809216 B1 EP0809216 B1 EP 0809216B1
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EP
European Patent Office
Prior art keywords
communication device
data communication
data
power supply
vehicle
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EP97103680A
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German (de)
French (fr)
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EP0809216A2 (en
EP0809216A3 (en
Inventor
Werner Politz
Wilhelm Dr. Grabow
Wolfgang Dr. Steiger
Rainer Schmedding
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station

Definitions

  • the invention relates to a data communication device for a vehicle pulled by a motor vehicle, the electric Operating energy via a cable connection to the motor vehicle is transmitted.
  • the invention further relates to a use of such a data communication device.
  • ABS anti-lock braking system
  • ABS of the trailer For the activation of the ABS of the trailer must be a plug of the trailer in a standardized socket of the vehicle can be plugged in so the control unit receives its power supply. About the connection is also an error signal that indicates whether the ABS is working properly or one contained in the ABS Self-test device has detected a malfunction.
  • Newly developed anti-lock braking systems have an expanded Control on, in the further data such as air suspension, type of error and an electronic odometer can be integrated can.
  • pad wear monitoring can be carried out performed for the brakes and the corresponding data saved become. These data are output regularly via a diagnostic socket by hand and requires one manual documentation or via a connectable portable Terminal to which the data can be transferred.
  • the present invention is therefore based on the problem from capturing trailer data largely tamper-proof and easy to handle.
  • a data communication device of the type mentioned in the introduction through its own power supply, a data acquisition unit and a short-range wireless transmission and Receiving device for transmitting data from the data acquisition unit to an external sending and receiving station.
  • the data communication device data acquisition for the trailer self-sufficient from the towing vehicle, so that a cut in the power supply by interrupting the power supply from the towing vehicle is not possible.
  • the Transfer of the data stored in the data acquisition unit takes place with the data communication device according to the invention wirelessly via a short-range transmitting and receiving device to an external sending and receiving station.
  • data communication can be done regularly when driving past be carried out at an external sending and receiving station, expediently the transmitting and receiving device of the towed vehicle formed by a transponder is, so that the data communication through the external transmission and Receiving station is triggered.
  • a pulse generator on at least one wheel of the towed vehicle provided depending on the movement of the Rades emits pulses, at least on a power supply unit come with a rectifier, so that from the preferably also used as measuring pulses Energy for the data acquisition unit is generated.
  • a backup battery Power supply can be provided, for example, during an extreme slow travel that is transmitted by the impulses electrical energy should become too low.
  • brake light and direction indicator be provided, from which energy may be drawn can, which is preferably stored in a rechargeable battery becomes.
  • the short-range wireless data communication preferably takes place in the GHz range.
  • a data communication system that works with a transponder in the vehicle, is from proposals for traffic control technology, in particular the automatic collection of road tolls, known and for example in principle in DE 42 13 880 A1 explained.
  • Data acquisition unit can be in a preferred embodiment Part of one installed in the towed vehicle Control for a brake lock protection device.
  • the pulse generator is preferably also a sensor the anti-lock device. Because from the wheel impulses of the sensors the anti-lock device all movements of the wheels can be determined and evaluated, this can be done without further used to determine the distance traveled become.
  • the data acquisition unit according to the invention can of course be used also record additional data or with other data sources to be connected. This includes all data sources from the known ABS devices. Additional data is identification data for the trailer and possibly other data that especially for controlling an immobilizer function for the trailer can be used for authorized use only of the trailer.
  • the immobilizer function can, for example, through a joint effectiveness control all the brakes on the trailer are applied, i.e. to the ABS belonging pneumatic valves.
  • the data communication device can in particular use with advantage at rental stations for trailers, where an automatic issue and return control for the towed vehicle with the external transmission and Receiving station can be made. Furthermore, it is possible the data of the trailer also to control entry and / or to use exit controls.
  • the sending and receiving station has one Antenna 3 on, for a short-range transmission of Data in interaction with an antenna 4 of a trailer 5, which is a towed vehicle.
  • the antenna 4 of the trailer 5 is part of a transmitting and receiving device 6, which are preferably designed as transponders and for communication with the transmitting and receiving station on one frequency of 5.8 GHz is determined.
  • Communication between the Transmitting and receiving station 1 and the transmitting and receiving device 6 takes place sequentially by sending out a pulse train the transmitting and receiving station 1 (uplink) and by modulation the pulse train for the transmission of data information through the transponder 6 and return the modulated Pulse signals (downlink).
  • the advantage of this communication method that is described, for example, in DE 42 13 880 A1 is that the one required by the transponder Energy 6 from that of the transmitting and receiving station 1 transmitted pulse signals is obtained.
  • the data transmitted by the transmitting and receiving device 6 are generated and processed in a data acquisition unit 7.
  • four wheels 8 of the trailer 5 each have a sensor 9 connected, the output pulses depending on the movement of the assigned Rades 8 generated, that is, represents a pulse generator that Generated pulses depending on the movement of the wheels 8.
  • the pulses from the sensors 9 reach a controller 10, in which evaluates the movements of the wheels 8 and ABS control signals generated with which the effect of the brakes is controlled becomes.
  • the pulses from the sensors 9 also reach one Distance counter 11, in which from the pulses of the sensors 9 the distance traveled by the trailer 5 is evaluated.
  • the route signal formed is sent via a communication interface and data memory 12 as a processed data signal to the transponder 6.
  • the power supply unit 14 equipped with a backup battery 15 be those that are particularly slow for the extreme exceptional cases Drive takes over the power supply.
  • the backup battery 15 can be designed as an accumulator, again and again can be charged.
  • Figure 2 shows an embodiment of a power supply ABS control 10 through branch lines 16 from power supply lines 17 for indicators and warning lights 18 of the trailer 5.
  • the power supply lines 17 are via a Connector 19 of the trailer 5 supplied by the towing vehicle, which is also done by charging a backup battery can.
  • the ABS control unit 10 is connected to the via a plug 20 Connected towing vehicle.
  • the data acquisition unit 7 according to the invention and the transmit and Receiving device 6 can be independent of a power supply of the towing vehicle are and always are ready for operation, so that odometer counting takes place continuously.
  • the data determined in the process are stored in the data memory 12 stored and are by a transmit and Receiving station 1 in cooperation with the transmitting and Receiving device 6 of the trailer 5 constantly available and verifiable.

Description

Die Erfindung betrifft ein Datenkommunikationsgerät für ein von einem Kraftfahrzeug gezogenes Fahrzeug, dem elektrische Betriebsenergie über eine Kabelverbindung zum Kraftfahrzeug übertragen wird. Die Erfindung betrifft ferner eine Verwendung eines derartigen Datenkommunikationsgeräts.The invention relates to a data communication device for a vehicle pulled by a motor vehicle, the electric Operating energy via a cable connection to the motor vehicle is transmitted. The invention further relates to a use of such a data communication device.

Aus der GB 2255665 ist bereits ein Datenkommunikationsgerät zur Anordnung in einem Anhänger einer Zugmaschine bekannt. Aus der US 3901560 ist bereits ein Geschwindigkeitssensor bekannt, der eine Stromversorgungseinheit speist.From GB 2255665 there is already a data communication device for arrangement in one Trailer of a tractor known. From US 3901560 is already a Speed sensor known that feeds a power supply unit.

Nutzfahrzeuganhänger (einschließlich Sattelauflieger) erhalten ihre Stromversorgung für Signallampen, Beleuchtung, elektrische Regelschaltungen, einschließlich ein Anti-Blockier-System (ABS) regelmäßig vom ziehenden Kraftfahrzeug. Dies hat zur Folge, daß die elektronischen bzw. elektrischen Funktionsgruppen der Anhänger nicht funktionieren, wenn die Verbindung zum ziehenden Kraftfahrzeug nicht hergestellt ist. Für Nutzfahrzeuganhänger und Sattelauflieger ist seit einiger Zeit ein Antiblockiersystem (ABS) vorgeschrieben. Beim ABS nehmen Radsensoren die Bewegung der Räder auf und geben entsprechende Impulse an eine zentrale Steuerung des ABS. Über Pneumatikventile wird die Funktion der Bremsen so gesteuert, daß das Blockieren der Bremsen vermieden wird. Für die Wirksamschaltung des ABS des Anhängers muß ein Stecker des Anhängers in eine genormte Steckdose des Fahrzeugs gesteckt werden, damit das Steuergerät seine Stromversorgung erhält. Über die Verbindung ist ferner ein Fehlersignal übertragbar, das angibt, ob das ABS fehlerfrei arbeitet oder eine in der ABS enthaltene Selbsttesteinrichtung einen Funktionsfehler detektiert hat. Neu entwickelte Antiblockiersysteme weisen eine erweiterte Steuerung auf, in der weitere Daten wie Luftfederung, Fehlerart und ein elektronischer Wegstreckenzähler integriert sein können. Darüber hinaus kann eine Belagverschleißüberwachung für die Bremsen durchgeführt und die entsprechenden Daten abgespeichert werden. Die Ausgabe dieser Daten erfolgt regelmässig über eine Diagnosesteckdose von Hand und erfordert eine manuelle Dokumentation oder über ein anschließbares tragbares Terminal, auf das die Daten übertragen werden können.Obtain commercial vehicle trailers (including semi-trailers) their power supply for signal lamps, lighting, electrical Control circuits, including an anti-lock braking system (ABS) regularly from the pulling motor vehicle. This has to Consequence that the electronic or electrical functional groups the trailer does not work when connected to pulling motor vehicle is not manufactured. For commercial vehicle trailers and semi-trailer has been around for some time Anti-lock braking system (ABS) prescribed. With ABS take wheel sensors the movement of the wheels and give appropriate Impulses to a central control of the ABS. Via pneumatic valves the function of the brakes is controlled so that Blocking the brakes is avoided. For the activation of the ABS of the trailer must be a plug of the trailer in a standardized socket of the vehicle can be plugged in so the control unit receives its power supply. About the connection is also an error signal that indicates whether the ABS is working properly or one contained in the ABS Self-test device has detected a malfunction. Newly developed anti-lock braking systems have an expanded Control on, in the further data such as air suspension, type of error and an electronic odometer can be integrated can. In addition, pad wear monitoring can be carried out performed for the brakes and the corresponding data saved become. These data are output regularly via a diagnostic socket by hand and requires one manual documentation or via a connectable portable Terminal to which the data can be transferred.

Es besteht vielfach ein erhebliches Bedürfnis, bei Anhängern die zurückgelegte Wegstrecke manipulationssicher zu erfassen. Die elektronische Wegstreckenzählung durch Zählung der Radimpulse des ABS versagt, wenn der Fahrer aus Manipulationsgründen auf die Wirksamschaltung des ABS verzichtet, den ABS-Stecker also zieht und damit die durch das Zugfahrzeug bewirkte Stromversorgung des ABS unterbricht. In diesem Fall ist zwar das ABS nicht mehr wirksam, die pneumatisch normal wirkenden Bremsen funktionieren jedoch weiterhin.There is often a significant need for followers to record the distance traveled tamper-proof. Electronic distance counting by counting the wheel impulses of the ABS fails if the driver for manipulation reasons the ABS connector is not activated so pulls and thus the one caused by the towing vehicle The ABS power supply is interrupted. In this case although the ABS is no longer effective, the pneumatically normal acting However, brakes still work.

Bekannt ist ferner, Anhänger mit einem mechanischen Wegstrekkenzähler an der Radnabe auszustatten. Diese sind jedoch im rauhen Betrieb störanfällig und darüber hinaus leicht manipulierbar.It is also known trailers with a mechanical odometer to be equipped on the wheel hub. However, these are in harsh operation prone to failure and moreover easy to manipulate.

Die vorliegende Erfindung geht daher von der Problemstellung aus, Anhängerdaten weitgehend manipulationssicher zu erfassen und leicht handhabbar übermitteln zu können.The present invention is therefore based on the problem from capturing trailer data largely tamper-proof and easy to handle.

Ausgehend von dieser Problemstellung ist ein Datenkommunikationsgerät der eingangs erwähnten Art erfindungsgemäß gekennzeichnet durch eine eigene Stromversorgung, eine Datenerfassungseinheit und eine drahtlose kurzreichweitige Sende- und Empfangseinrichtung zur Übertragung von Daten der Datenerfassungseinheit auf eine externe Sende- und Empfangsstation. Starting from this problem is a data communication device of the type mentioned in the introduction through its own power supply, a data acquisition unit and a short-range wireless transmission and Receiving device for transmitting data from the data acquisition unit to an external sending and receiving station.

Durch das erfindungsgemäße Datenkommunikationsgerät erfolgt die Datenerfassung für den Anhänger autark vom Zugfahrzeug, so daß eine Unterbindung der Stromversorgung durch Unterbrechen der Stromversorgung vom Zugfahrzeug aus nicht möglich ist. Die Übergabe der in der Datenerfassungseinheit gespeicherten Daten erfolgt mit dem erfindungsgemäßen Datenkommunikationsgerät drahtlos über eine kurzreichweitige Sende- und Empfangseinrichtung auf eine externe Sende- und Empfangsstation. Dadurch kann die Datenkommunikation regelmäßig bei einer Vorbeifahrt an einer externen Sende- und Empfängsstation vorgenommen werden, wobei zweckmäßigerweise die Sende- und Empfangseinrichtung des gezogenen Fahrzeugs durch einen Transponder gebildet ist, so daß die Datenkommunikation durch die externe Sendeund Empfangsstation ausgelöst wird.This is done by the data communication device according to the invention data acquisition for the trailer self-sufficient from the towing vehicle, so that a cut in the power supply by interrupting the power supply from the towing vehicle is not possible. The Transfer of the data stored in the data acquisition unit takes place with the data communication device according to the invention wirelessly via a short-range transmitting and receiving device to an external sending and receiving station. Thereby data communication can be done regularly when driving past be carried out at an external sending and receiving station, expediently the transmitting and receiving device of the towed vehicle formed by a transponder is, so that the data communication through the external transmission and Receiving station is triggered.

Für das erfindungsgemäße Datenkommunikationsgerät ist eine wesentliche Voraussetzung, daß es mit einem äußerst geringen Stromverbrauch arbeitet, so daß die eigene Stromversorgung betriebssicher arbeiten kann und beispielsweise nicht auf sich leerende Batterien o.ä. angewiesen ist.One is for the data communication device according to the invention essential requirement that it with an extremely low Power consumption works so that your own power supply can work reliably and for example not on itself empty batteries or similar is instructed.

Weiterhin ist an wenigstens einem Rad des gezogenen Fahrzeugs ein Impulsgeber vorgesehen, der in Abhängigkeit von der Bewegung des Rades Impulse abgibt, die zumindest auch auf eine Stromversorgungseinheit mit einem Gleichricher gelangen, so daß aus den vorzugsweise auch als Meßimpulse verwendeten Impulsen die Energie für die Datenerfassungseinheit erzeugt wird. Selbstverständlich kann dabei eine Stützbatterie zur ergänzenden Stromversorgung vorgesehen werden, wenn beispielsweise während einer extremen Langsamfahrt die durch die Impulse übertragene elektrische Energie zu gering werden sollte. Als Ergänzung für die Stromversorgung kann ferner ein Anschluß an die Stromversorgung von Rücklicht, Bremslicht und Fahrtrichtungsanzeiger vorgesehen werden, aus dem ggfs. Energie entnommen werden kann, die vorzugsweise in einem aufladbaren Akkumulator gespeichert wird. Furthermore, there is a pulse generator on at least one wheel of the towed vehicle provided depending on the movement of the Rades emits pulses, at least on a power supply unit come with a rectifier, so that from the preferably also used as measuring pulses Energy for the data acquisition unit is generated. Of course can add a backup battery Power supply can be provided, for example, during an extreme slow travel that is transmitted by the impulses electrical energy should become too low. As a supplement to the power supply can also be connected to the power supply of taillight, brake light and direction indicator be provided, from which energy may be drawn can, which is preferably stored in a rechargeable battery becomes.

Die kurzreichweitige drahtlose Datenkommunikation findet vorzugsweise im GHz-Bereich statt. Ein derartiges Datenkommunikationssystem, das mit einem Transponder im Fahrzeug arbeitet, ist aus Vorschlägen für die Verkehrsleittechnik, insbesondere die automatische Erhebung von Straßenbenutzungsgebühren, bekannt und beispielsweise in der DE 42 13 880 A1 im Prinzip erläutert.The short-range wireless data communication preferably takes place in the GHz range. Such a data communication system, that works with a transponder in the vehicle, is from proposals for traffic control technology, in particular the automatic collection of road tolls, known and for example in principle in DE 42 13 880 A1 explained.

Die in dem erfindungsgemäßen Datenkommunikationsgerät vorgesehene Datenerfassungseinheit kann in einer bevorzugten Ausführungsform Teil einer im gezogenen Fahrzeug installierten Steuerung für eine Bremsenblockierschutzeinrichtung sein. Insbesondere ist der Impulsgeber vorzugsweise zugleich ein Sensor der Blockierschutzeinrichtung. Da aus den Radimpulsen der Sensoren der Blockierschutzeinrichtung alle Bewegungen der Räder ermittelt und ausgewertet werden können, können diese ohne weiteres zur Ermittlung der zurückgelegten Wegstrecke verwendet werden.The provided in the data communication device according to the invention Data acquisition unit can be in a preferred embodiment Part of one installed in the towed vehicle Control for a brake lock protection device. In particular the pulse generator is preferably also a sensor the anti-lock device. Because from the wheel impulses of the sensors the anti-lock device all movements of the wheels can be determined and evaluated, this can be done without further used to determine the distance traveled become.

Die erfindungsgemäße Datenerfassungseinheit kann selbstverständlich auch weitere Daten aufnehmen oder mit anderen Datenquellen vernetzt sein. Hierzu gehören alle Datenquellen der bekannten ABS-Einrichtungen. Zusätzliche Daten sind Identifikationsdaten für den Anhänger und ggfs. sonstige Daten, die insbesondere auch zur Steuerung einer Wegfahrsperrfunktion für den Anhänger verwendbar sind, um nur einen autorisierten Gebrauch des Anhängers zu erlauben. Die Wegfahrsperrfunktion kann beispielsweise durch eine gemeinsame Wirksamsteuerung aller Bremsen des Anhängers erfolgen, also über die zum ABS gehörenden Pneumatikventile.The data acquisition unit according to the invention can of course be used also record additional data or with other data sources to be connected. This includes all data sources from the known ABS devices. Additional data is identification data for the trailer and possibly other data that especially for controlling an immobilizer function for the trailer can be used for authorized use only of the trailer. The immobilizer function can, for example, through a joint effectiveness control all the brakes on the trailer are applied, i.e. to the ABS belonging pneumatic valves.

Das erfindungsgemäße Datenkommunikationsgerät läßt sich insbesondere mit Vorteil bei Verleihstationen für Anhänger verwenden, bei denen eine automatische Ausgabe- und Rückgabekontrolle für das gezogene Fahrzeug mit der externen Sendeund Empfangsstation vorgenommen werden kann. Ferner ist es möglich, die Daten des Anhängers auch zur Steuerung von Einfahrts- und/oder Ausfahrtskontrollen zu verwenden. The data communication device according to the invention can in particular use with advantage at rental stations for trailers, where an automatic issue and return control for the towed vehicle with the external transmission and Receiving station can be made. Furthermore, it is possible the data of the trailer also to control entry and / or to use exit controls.

Die Erfindung soll im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden. Es zeigen:

Figur 1 -
eine schematische Darstellung einer Sende- und Empfangsstation
Figur 2 -
eine schematische Darstellung für eine Hilfs-Stromversorgung aus der Stromversorgung für Blink- und Warnleuchten des Anhängers.
The invention will be explained below with reference to an embodiment shown in the drawing. Show it:
Figure 1 -
is a schematic representation of a transmitting and receiving station
Figure 2 -
a schematic representation of an auxiliary power supply from the power supply for flashing and warning lights of the trailer.

In Figur 1 ist eine Sende- und Empfangsstation 1 dargestellt, die stationär installiert und mit einer Auswertungszentrale 2 verbunden sein kann. Die Sende- und Empfangsstation weist eine Antenne 3 auf, die für eine kurzreichweitige Übertragung von Daten im Zusammenspiel mit einer Antenne 4 eines Anhängers 5, der ein gezogenes Fahrzeug ist, ausgelegt ist. Die Antenne 4 des Anhängers 5 ist Teil einer Sende- und Empfangseinrichtung 6, die vorzugsweise als Transponder ausgebildet und zur Kommunikation mit der Sende- und Empfangsstation auf einer Frequenz von 5,8 GHz bestimmt ist. Die Kommunikation zwischen der Sende- und Empfangsstation 1 und der Sende- und Empfangseinrichtung 6 erfolgt sequentiell durch Aussenden einer Impulsfolge der Sende- und Empfangsstation 1 (Uplink) und durch Modulation der Impulsfolge zur Übertragung von Dateninformationen durch den Transponder 6 und Rücksendung der modulierten Impulssignale (Downlink). Der Vorteil dieses Kommunikationsverfahrens, das beispielsweise in der DE 42 13 880 A1 beschrieben ist, besteht darin, daß die vom Transponder benötigte Energie 6 aus den von der Sende- und Empfangsstation 1 übersandten Impulssignalen gewonnen wird.1 shows a transmitting and receiving station 1, which is installed stationary and with an evaluation center 2 can be connected. The sending and receiving station has one Antenna 3 on, for a short-range transmission of Data in interaction with an antenna 4 of a trailer 5, which is a towed vehicle. The antenna 4 of the trailer 5 is part of a transmitting and receiving device 6, which are preferably designed as transponders and for communication with the transmitting and receiving station on one frequency of 5.8 GHz is determined. Communication between the Transmitting and receiving station 1 and the transmitting and receiving device 6 takes place sequentially by sending out a pulse train the transmitting and receiving station 1 (uplink) and by modulation the pulse train for the transmission of data information through the transponder 6 and return the modulated Pulse signals (downlink). The advantage of this communication method, that is described, for example, in DE 42 13 880 A1 is that the one required by the transponder Energy 6 from that of the transmitting and receiving station 1 transmitted pulse signals is obtained.

Die von der Sende- und Empfangseinrichtung 6 übertragenen Daten werden in einer Datenerfassungseinheit 7 erzeugt und aufbereitet.The data transmitted by the transmitting and receiving device 6 are generated and processed in a data acquisition unit 7.

In dem dargestellten Ausführungsbeispiel sind an vier Rädern 8 des Anhängers 5 jeweils ein Sensor 9 angeschlossen, der Ausgangsimpulse in Abhängigkeit von der Bewegung des zugeordneten Rades 8 erzeugt, also einen Impulsgenerator darstellt, der Impulse in Abhängigkeit von der Bewegung der Räder 8 erzeugt. Die Impulse der Sensoren 9 gelangen auf eine Steuerung 10, in der die Bewegungen der Räder 8 ausgewertet und ABS-Steuersignale erzeugt, mit denen die Wirkung der Bremsen gesteuert wird.In the illustrated embodiment, four wheels 8 of the trailer 5 each have a sensor 9 connected, the output pulses depending on the movement of the assigned Rades 8 generated, that is, represents a pulse generator that Generated pulses depending on the movement of the wheels 8. The pulses from the sensors 9 reach a controller 10, in which evaluates the movements of the wheels 8 and ABS control signals generated with which the effect of the brakes is controlled becomes.

Die Impulse der Sensoren 9 gelangen ferner auf einen Wegstreckenzähler 11, in dem aus den Impulsen der Sensoren 9 die zurückgelegte Wegstrecke des Anhängers 5 ausgewertet wird. Das gebildete Wegstreckensignal gelangt über eine Kommunikationsschnittstelle und Datenspeicher 12 als aufbereitetes Datensignal zum Transponder 6.The pulses from the sensors 9 also reach one Distance counter 11, in which from the pulses of the sensors 9 the distance traveled by the trailer 5 is evaluated. The route signal formed is sent via a communication interface and data memory 12 as a processed data signal to the transponder 6.

Über die Kommunikationsschnittstelle 12 können auch andere Daten übertragen werden, die in anderer Weise, ggfs. durch spezielle Sensoren oder durch am Anhänger 5 vorgesehene Lesegeräte erfaßt werden. Eine Stufe zur Erfassung dieser anderen Daten ist in der Zeichnung schematisch als Datenerfassungstufe 13 dargestellt. In diese Datenerfassungsstufe 13 können beispielsweise auch Daten zur Identifizierung des speziellen Anhängers 5 eingegeben werden, so daß die Sende- und Empfangsstation 1 zum automatischen Einchecken und Auschecken in einer Verleihstation für Anhänger 5 ausgenutzt werden kann. In entsprechender Weise kann auch die Einfahrt bzw. Ausfahrt zu bzw. von der Verleihstation, beispielsweise durch eine Schranke, kontrolliert werden.Others can also use the communication interface 12 Data are transmitted in a different way, possibly by special sensors or readers provided on the trailer 5 be recorded. One level to capture this other Data is shown schematically in the drawing as a data acquisition stage 13 shown. In this data acquisition stage 13, for example also data to identify the special trailer 5 are entered so that the sending and receiving station 1 for automatic check-in and check-out in one Rental station for trailer 5 can be used. In corresponding The entry or exit to or from the rental station, for example through a barrier, to be controlled.

Um die erfindungsgemäß benötigte eigene Stromversorgung für die Datenerfassungseinheit 7 und insbesondere für den Wegstreckenzähler 11 und die Bereitstellung der Daten in Kommunikationsstelle und Datenspeicher 12, zu gewährleisten, werden die Ausgangsimpulse der Sensoren 9 auch auf eine Stromversorgungseinheit 14 geleitet, in der die Impulse gleichgerichtet werden und hieraus eine Gleichspannung zur Versorgung der Datenerfassungseinheit 7 gebildet wird. Dabei wird davon ausgegangen, daß eine Stromversorgung für den Wegstreckenzähler 11 nur erforderlich ist, wenn sich die Räder 8 auch tatsächlich bewegen.To the own power supply required for the data acquisition unit 7 and in particular for the odometer 11 and the provision of data in communication center and data storage 12 to ensure the output pulses from the sensors 9 also to a power supply unit 14 passed in which the pulses rectified and from this a DC voltage for supply of the data acquisition unit 7 is formed. Doing so assumed that a power supply for the odometer 11 is only required if the wheels 8 actually move.

Aus Gründen der Übersichtlichkeit sind nur zwei der vier dargestellten Sensoren 9 mit der Stromversorgungseinheit 14 verbunden. Regelmäßig werden aber alle vier Sensoren 9 an die Stromversorgungseinheit 14 angeschlossen sein.For reasons of clarity, only two of the four are shown Sensors 9 connected to the power supply unit 14. Regularly, however, all four sensors 9 are connected to the Power supply unit 14 may be connected.

Für den Fall einer sehr langsamen Bewegung der Räder 8 kann es vorkommen, daß die von der Stromversorgungseinheit 14 produzierte Gleichspannung zu niedrig ist, um die Datenerfassungseinheit 7 zu versorgen. Für diesen Fall kann die Stromversorgungseinheit 14 mit einer Stützbatterie 15 ausgestattet sein, die für die extremen Ausnahmefälle einer besonders langsamen Fahrt die Stromversorgung übernimmt. Die Stützbatterie 15 kann dabei als Akkumulator ausgebildet sein, der immer wieder aufgeladen werden kann.In the event of a very slow movement of the wheels 8 can it happens that that produced by the power supply unit 14 DC voltage is too low to the data acquisition unit 7 to supply. In this case, the power supply unit 14 equipped with a backup battery 15 be those that are particularly slow for the extreme exceptional cases Drive takes over the power supply. The backup battery 15 can be designed as an accumulator, again and again can be charged.

Figur 2 zeigt als Ausführungsbeispiel eine Stromversorgung der ABS-Steuerung 10 durch Abzweigungsleitungen 16 aus Stromversorgungsleitungen 17 für Blink- und Warnleuchten 18 des Anhängers 5. Die Stromversorgungsleitungen 17 werden über einen Anschlußstecker 19 des Anhängers 5 vom Zugfahrzeug versorgt, was ebenfalls über die Aufladung einer Stützbatterie erfolgen kann.Figure 2 shows an embodiment of a power supply ABS control 10 through branch lines 16 from power supply lines 17 for indicators and warning lights 18 of the trailer 5. The power supply lines 17 are via a Connector 19 of the trailer 5 supplied by the towing vehicle, which is also done by charging a backup battery can.

Auch das ABS-Steuergerät 10 ist über einen Stecker 20 mit dem Zugfahrzeug verbunden.The ABS control unit 10 is connected to the via a plug 20 Connected towing vehicle.

Die erfindungsgemäße Datenerfassungseinheit 7 und die Sendeund Empfangseinrichtung 6 können unabhängig von einer Stromversorgung des Zugfahrzeugs betrieben werden und sind immer betriebsbereit, so daß eine Wegstreckenzählung ständig stattfindet. Die dabei ermittelten Daten werden in dem Datenspeicher 12 gespeichert und sind durch eine Sende- und Empfangsstation 1 im Zusammenwirken mit der Sende- und Empfangseinrichtung 6 des Anhängers 5 ständig abrufbar und überprüfbar. The data acquisition unit 7 according to the invention and the transmit and Receiving device 6 can be independent of a power supply of the towing vehicle are and always are ready for operation, so that odometer counting takes place continuously. The data determined in the process are stored in the data memory 12 stored and are by a transmit and Receiving station 1 in cooperation with the transmitting and Receiving device 6 of the trailer 5 constantly available and verifiable.

Erstmalig ist somit auf elektronischem Wege eine vollständige, weitgehend manipulationssichere und ständig kontrollierbare Erfassung der zurückgelegten Wegstrecke des Anhängers 5 möglich geworden.For the first time, a complete, largely tamper-proof and constantly controllable Detection of the distance traveled by the trailer 5 possible become.

Claims (12)

  1. Data communication device for a vehicle (5) which is towed by a motor vehicle and to which electrical operating energy is transmitted via a cable connection to the motor vehicle, a separate power supply (14), a data registration unit (7) and a transmitting and receiving device (6) being provided for the wire-free, short-range transmission of data of the data registration unit (7) to an external transmitting and receiving station (1), a pulse generator (9) being provided which outputs pulses as a function of a movement of a wheel (8) of the towed vehicle (5), said pulses being fed to the power supply unit (14) and rectified by it, and the pulse generator (9) being at the same time a sensor of an anti-lock device.
  2. Data communication device according to Claim 1, characterized by a back-up battery (15) for providing a supplementary power supply.
  3. Data communication device according to one of Claims 1 to 2, characterized by a connection to a power supply for the rear light, brake light and driving direction indicator for providing a supplementary power supply.
  4. Data communication device according to Claim 2 or 3, characterized by an accumulator which can be charged by means of excess electrical energy.
  5. Data communication device according to one of Claims 1 to 4, characterized in that the transmitting and receiving device (6) is formed by a transponder.
  6. Data communication device according to one of Claims 1 to 5, characterized in that the transmitting and receiving device (6) is configured to transmit and receive at a frequency in the GHz range.
  7. Data communication device according to one of Claims 1 to 6, characterized in that the data registration unit (7) is part of a controller (10), installed in the towed vehicle (5), for a brake anti-lock device.
  8. Data communication device according to one of Claims 1 to 7, characterized by an evaluation stage (11) for evaluating the pulses of a plurality of pulse generators (9) which are assigned to the wheels (8) and have the purpose of determining the distance travelled.
  9. Data communication device according to one of Claims 1 to 8, characterized by the networking of the data registration unit (7) with other data sources.
  10. Data communication device according to one of Claims 1 to 9, characterized by a control circuit for carrying out an immobilizer function.
  11. Use of a data communication device according to one of Claims 1 to 10, for checking the issuing and return of the towed vehicle (5).
  12. Use of a data communication device according to one of Claims 1 to 10, for controlling entry and/or exit checks.
EP97103680A 1996-05-22 1997-03-06 Data communication device for a vehicle towed by a motor vehicle Expired - Lifetime EP0809216B1 (en)

Applications Claiming Priority (2)

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DE19620555 1996-05-22
DE19620555A DE19620555A1 (en) 1996-05-22 1996-05-22 Data communication device for a vehicle pulled by a motor vehicle

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EP0809216A2 EP0809216A2 (en) 1997-11-26
EP0809216A3 EP0809216A3 (en) 2000-02-23
EP0809216B1 true EP0809216B1 (en) 2003-08-06

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DE (2) DE19620555A1 (en)

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Also Published As

Publication number Publication date
US5900803A (en) 1999-05-04
EP0809216A2 (en) 1997-11-26
DE19620555A1 (en) 1997-11-27
EP0809216A3 (en) 2000-02-23
DE59710527D1 (en) 2003-09-11

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