EP1264297B1 - Dispositif servant a avertir par radio le conducteur d'un vehicule automobile d'un danger - Google Patents

Dispositif servant a avertir par radio le conducteur d'un vehicule automobile d'un danger Download PDF

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Publication number
EP1264297B1
EP1264297B1 EP00985209A EP00985209A EP1264297B1 EP 1264297 B1 EP1264297 B1 EP 1264297B1 EP 00985209 A EP00985209 A EP 00985209A EP 00985209 A EP00985209 A EP 00985209A EP 1264297 B1 EP1264297 B1 EP 1264297B1
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EP
European Patent Office
Prior art keywords
warning
danger
driver
vehicle
motor vehicle
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.)
Expired - Lifetime
Application number
EP00985209A
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German (de)
English (en)
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EP1264297A1 (fr
Inventor
Robert Schüssler
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1264297A1 publication Critical patent/EP1264297A1/fr
Application granted granted Critical
Publication of EP1264297B1 publication Critical patent/EP1264297B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/161—Decentralised systems, e.g. inter-vehicle communication
    • G08G1/162—Decentralised systems, e.g. inter-vehicle communication event-triggered
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle

Definitions

  • the invention relates to a device for radio-based hazard warning the driver of a motor vehicle according to the preamble of claim 1.
  • DE 197 58 155 A1 describes a generic device for radio-based hazard warning, being motor vehicles to exchange hazard warning data with one Data transmission device are equipped. After activation the data transmission device, the data for Hazard warning sent to other motor vehicles, the data sent information about the position, the speed and the direction of travel of the sending motor vehicle and the type of road on which the transmitting motor vehicle moves, and wherein those received in the other vehicles Data to be evaluated as to whether the received Data represent a danger to the motor vehicle or not. If a hazard is detected, this will be the driver of the Motor vehicle notified by warning signals.
  • US 4706086 describes a device for warning of danger, where the emitted warning from the vehicle detected Traffic and weather data contains.
  • the warning contains continue the time of the occurrence of the warning triggering Event and the since the occurrence of the event distance traveled by the vehicle.
  • the object of the invention is the generic device to make the danger warning more selective and the driver as possible to draw attention only to those sources of danger, that affect him.
  • the main idea of the invention is the information about the position, the type of road and the direction of travel, the the sending motor vehicle, with a navigation system to create.
  • a computer device a warning zone about the current position of the sending motor vehicle calculated and the data of the warning zone also with the Data transmission device emitted.
  • the sending (warning) vehicle thus generates a fixed or mitbewegte Warnschleppe on the relevant past Track section analogous to a timely recognizable Moving warning triangle.
  • the selectivity is determined by the Use of position information (coordinates with street type and direction of travel) of the navigation system and by the Limiting the relevance of the information to a specified one Warning zone achieved, the relevance of the information resumed using the digital maps of the navigation system by the computer unit of the receiving (warned) Motor vehicle is tested. Move with the device equipped motor vehicles within the warning tow, so This can be done by activating the hazard warning lights or their Data transmission device the range of the original Increase hazard warning and warning too Motor vehicles not equipped with the device are, expand.
  • the warning zone is not determined statically, but is determined by different input variables.
  • the warning zone represents a preferably circular area around the transmitting motor vehicle.
  • the center of the warning zone is the current position (coordinates) of the transmitting vehicle, the extent of the warning zone is described by the warning radius R.
  • the warning radius R is determined essentially by the desired minimum warning time T min for other forces vehicles, the minimum warning time T min should be about 5 seconds, so that the driver warned can respond in time.
  • the warning radius R is dependent on system-related position errors P err in the determination of the current vehicle position and assumed time delays T del in the message transmission and processing process.
  • the warning radius R is dependent on the approach speed V a of the other vehicles and the airspeed V of the transmitting vehicle.
  • the approach speed V a of the other motor vehicles typical or maximum speeds for the type of road on which the transmitting motor vehicle moves are used to calculate the warning radius.
  • the activation of the data transmission device is carried out by the driver by means of a manual operation of a switch.
  • An automatic generation and sending of the hazard warning takes place only if through internal sensors (crash sensors) a Accident is detected.
  • the danger warning take over. So basically two cases are distinguished.
  • the sending vehicle itself is the source of danger and marks the current position of the motor vehicle the place of the source of danger.
  • the hazard warning will then be activated sent until the problem is resolved and the source of danger is eliminated and disabled the device for warning becomes.
  • the driver of the motor vehicle recognizes a source of danger (other road users) that has no device for sending a hazard warning or the has sent no danger warning.
  • the data sent by an information added that the motor vehicle is representative of a other road users carries out the hazard warning.
  • the Deputy sending motor vehicle sends in regular Intervals as long as the hazard warning automatically, without the current Position the source of danger until it changes itself has left the calculated warning zone.
  • the transmission of this additional information is therefore important for the Computing unit of the motor vehicles, the danger warning received, not from the absence of danger warning, though the sending motor vehicle, the data transmission device disabled again, concludes that the source of danger no longer exists. In this case the hazard warning becomes stored and displayed to the driver until the place of the driver Source of danger was passed. Whether the received Hazard warning is sent out, is left to the discretion of the Driver whose data transmission device the danger message has received.
  • the device comprises for radio-based hazard warning a data transmission device 1, a computer unit 2, a navigation system 3, an output unit 4, an activation device 5 and a sensor unit 6, preferably connected via a vehicle bus system are.
  • the danger warning is generated according to the flowchart of FIG.
  • the sending of the hazard warning is terminated either by the deactivation of the device or, if sent as a proxy for another road user, after leaving the calculated warning zone.
  • the operating frequency of the hazard warning device is chosen so that it can be transmitted with the existing in the vehicle antenna systems, and is located in a usable at least for Europe frequency band.
  • the 87.5 MHz EUROSIGNAL or the ISM band can be used in the 800-900 MHz range. Since it should be warned selectively, a range of the transmission signal of about 3km is sufficient.
  • the hazard warning is displayed in the receiving vehicle according to the flowchart evaluated according to FIG.
  • the computer unit 2 After receiving the hazard warning checked by the data transmission device 1 the computer unit 2 using the position data of Navigation system 3, whether the motor vehicle within the Warning zone is located. If the motor vehicle is outside the warning zone, the danger warning is ignored. Is the motor vehicle within the warning zone, the computer unit 2 checks under Using the digital map of the navigation system 3 the theoretically possible leading route sections (electronic horizon) for a distance which the Warning radius of the warning zone corresponds. On the basis of in the danger warning contained position, road and direction then checked if the location of the source of danger (the sending Motor vehicle) one of the possible leading route sections can be assigned.
  • the message will be displayed otherwise ignored will provide appropriate warning information generated for the driver, for example, by the position of the Source of danger flashing on the with the output unit 4 shown travel route is displayed. After the displayed Hazard warning is up to the driver, whether he has his hazard warning lights activated and / or also sends a danger warning or not.

Claims (5)

  1. Dispositif pour avertir d'un danger par radio le conducteur d'un véhicule automobile avec un dispositif de transmission de données (1) destiné à émettre et recevoir des données, dans lequel le dispositif de transmission de données (1) échange des données avec des dispositifs de transmission de données d'autres véhicules automobiles et, en activant le dispositif de transmission de données (1), envoie des données pour avertir d'un danger les autres véhicules automobiles, et analyse les données reçues et, en cas de constatation d'un danger, délivre des signaux d'alarme au conducteur, et dans lequel les données envoyées comprennent des informations sur la position, la vitesse, la direction dans laquelle se déplace le véhicule automobile émetteur et le type de route sur laquelle se déplace le véhicule automobile émetteur,
       caractérisé en ce que,
       que les informations sur la position, le type de route et la direction de déplacement sont générées par un système de navigation (3) et qu'en plus une zone de précaution autour de la position actuelle du véhicule automobile émetteur est calculée par un calculateur (2) et émise au moyen du dispositif de transmission de données (1), la zone de précaution étant calculée en fonction d'un temps minimal de pré-avertissement, d'un retard de temps dépendant du système, d'une vitesse actuelle du véhicule automobile émetteur, d'une vitesse d'approche et d'une erreur de position dépendante du système sous la forme d'un rayon autour de la position du véhicule automobile émetteur.
  2. Dispositif pour avertir d'un danger par radio le conducteur d'un véhicule automobile selon la revendication 1,
       caractérisé en ce que,
       le calculateur (2) du véhicule automobile récepteur vérifie l'importance de l'avertissement de danger reçu en employant des cartes numériques du système de navigation (3).
  3. Dispositif pour avertir d'un danger par radio le conducteur d'un véhicule automobile selon la revendication 1,
       caractérisé en ce que,
       le dispositif de transmission de données (1) est activé par le conducteur au moyen d'un interrupteur manuel ou automatiquement par le calculateur (1) en fonction de l'analyse de données de capteur internes.
  4. Dispositif pour avertir d'un danger par radio le conducteur d'un véhicule automobile selon une des revendications 1 à 3 caractérisé en ce que,
       les données émises contiennent des informations précisant si le véhicule automobile émetteur représente lui-même la source de danger ou si le véhicule automobile émetteur émet l'avertissement de danger à la place d'un autre usager de la route.
  5. Dispositif pour avertir d'un danger par radio le conducteur d'un véhicule automobile selon l'une des revendications précédentes, caractérisé en ce que,
       la position de la source de danger est représentée sur une unité de sortie (4) du système de navigation.
EP00985209A 2000-02-18 2000-12-20 Dispositif servant a avertir par radio le conducteur d'un vehicule automobile d'un danger Expired - Lifetime EP1264297B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10007573A DE10007573C1 (de) 2000-02-18 2000-02-18 Vorrichtung zur funkbasierten Gefahrenwarnung des Fahrers eines Kraftfahrzeugs
DE10007573 2000-02-18
PCT/EP2000/012998 WO2001061668A1 (fr) 2000-02-18 2000-12-20 Dispositif servant a avertir par radio le conducteur d'un vehicule automobile d'un danger

Publications (2)

Publication Number Publication Date
EP1264297A1 EP1264297A1 (fr) 2002-12-11
EP1264297B1 true EP1264297B1 (fr) 2003-10-01

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EP00985209A Expired - Lifetime EP1264297B1 (fr) 2000-02-18 2000-12-20 Dispositif servant a avertir par radio le conducteur d'un vehicule automobile d'un danger

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Country Link
US (1) US6798354B2 (fr)
EP (1) EP1264297B1 (fr)
JP (1) JP3678703B2 (fr)
DE (2) DE10007573C1 (fr)
ES (1) ES2207564T3 (fr)
WO (1) WO2001061668A1 (fr)

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Publication number Publication date
US6798354B2 (en) 2004-09-28
US20030090392A1 (en) 2003-05-15
JP3678703B2 (ja) 2005-08-03
EP1264297A1 (fr) 2002-12-11
JP2003523590A (ja) 2003-08-05
DE50003955D1 (de) 2003-11-06
DE10007573C1 (de) 2001-09-27
WO2001061668A1 (fr) 2001-08-23
ES2207564T3 (es) 2004-06-01

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