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WO2001038138A1 - Warning light device for intensive braking to be mounted at the rear of motor vehicles - Google Patents

Warning light device for intensive braking to be mounted at the rear of motor vehicles Download PDF

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Publication number
WO2001038138A1
WO2001038138A1 PCT/FR2000/003237 FR0003237W WO0138138A1 WO 2001038138 A1 WO2001038138 A1 WO 2001038138A1 FR 0003237 W FR0003237 W FR 0003237W WO 0138138 A1 WO0138138 A1 WO 0138138A1
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WO
WIPO (PCT)
Prior art keywords
braking
light
warning device
signal
intensity
Prior art date
Application number
PCT/FR2000/003237
Other languages
French (fr)
Inventor
Alain Fara
Original Assignee
D.E.F.I. Sarl
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 D.E.F.I. Sarl filed Critical D.E.F.I. Sarl
Priority to EP00983383A priority Critical patent/EP1235700A1/en
Priority to AU20146/01A priority patent/AU2014601A/en
Publication of WO2001038138A1 publication Critical patent/WO2001038138A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • B60Q1/445—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal controlled by inertial devices
    • B60Q1/447—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal controlled by inertial devices with indication of the braking strength or speed changes, e.g. by changing the shape or intensity of the indication

Definitions

  • the present invention relates to the technical sector of accessories for motor vehicles, and more particularly the motor vehicles themselves.
  • the goal is twofold.
  • the high and central position of the light allows a driver to detect, through the glass surfaces of the vehicle immediately preceding it, the fact that the preceding vehicle brakes. Its reaction time is thus significantly reduced.
  • the central and elevated position of the light is directly in the field of vision of the follower conductor, which also reduces, in this case, its reaction time.
  • the braking indication is not sufficient to ensure passive safety.
  • the intensity of braking is also an important factor.
  • the invention therefore relates to an alert device, not simply a braking intensity (of which the prior art gives numerous examples) which would cause too many ignitions and therefore would trivialize the device until it becomes ineffective (which s '' is also passed for the current brake lights) but an emergency braking warning or warning device, i.e. a device that only lights up very rarely, in the event of extremely brutal braking, at a threshold which will be fixed by a person skilled in the art according to known or easily established parameters.
  • the subject of the present invention is a light warning device for intensive braking (or emergency braking), intended to be mounted at the rear of a motor vehicle, characterized in that it comprises:
  • said detection means comprises at least one inertial sensor capable of delivering to the electronics a modulated signal corresponding to the intensity of the braking.
  • this sensor only takes into account braking, that is to say negative accelerations or decelerations, and eliminates the acceleration factors.
  • said detection means comprises an emergency means connected forming an electrical contact at the stop of the brake pedal.
  • said detection means comprises a connection with the ABS system of the vehicle, so that the device according to the invention is triggered when the ABS is triggered; indeed, the ABS only comes into operation during emergency braking, which is the aim of the invention, or else when braking under dangerous traffic conditions, such as rain or snow or ice, this latter type of braking can also be very usefully signaled to following vehicles thanks to the invention.
  • the braking warning device comprises either a single light element or several light elements, possibly of different colors, shapes and intensity or visual appearance, or on the contrary identical.
  • Each light element can consist of a single light surface or volume, such as a single lamp or a single neon element, or on the contrary consist of a plurality of light surfaces or volumes, such as a plurality of light emitting diodes (LEDs). , or of lamps, or of ends of optical fibers, and the like, or of any surface or luminous volume existing or which will appear in the future, and capable of producing extremely rapidly sufficient brightness to trigger a state of alertness or alert with a follower driver.
  • the terms "light elements” will denote, for simplicity, this generality.
  • the braking warning device is the third central brake light.
  • the braking warning device is integrated into the third central brake light
  • the braking warning device is adjacent to the third central brake light.
  • the braking warning device is dissociated from the third central brake light.
  • the device is a brake warning fire single surface or volume.
  • the braking warning device is a light with multiple surfaces or volumes.
  • the braking warning device is a light with multiple surfaces or volumes, of color and / or intensity and / or shape and / or visual appearance, adjacent to each other. other.
  • the braking warning device is a light with multiple surfaces or volumes, of color and / or intensity and / or shape and / or visual appearance, not adjacent to each other. other.
  • the on-board electronics commands the power supply module of the braking warning device to operate the latter in continuous mode when said sensor delivers a signal exceeding a predetermined intensity threshold of braking.
  • the on-board electronics control the power supply module of the device brake warning to operate the latter in flashing mode when said sensor delivers a signal exceeding a predetermined threshold of braking intensity.
  • the on-board electronics command the power supply module of the braking warning device to operate the latter in rapid flashing mode when said sensor delivers a signal exceeding another predetermined threshold d braking intensity.
  • the on-board electronics command the power supply module of the brake warning device to operate the latter in very rapid flashing mode when said sensor delivers a signal exceeding another predetermined threshold. braking intensity.
  • the on-board electronics command the power supply module of the braking warning device to operate the various light elements of the latter separately, according to an ignition and preset extinction, when said sensor delivers a signal exceeding another predetermined braking intensity threshold.
  • the on-board electronics to ensure maximum safety, must be adapted so as not to interfere with the operation of the brake lights, and in particular not with the third central brake light.
  • the on-board electronics and its connections to the power supply module of the braking warning device include a voltage or electrical current comparator connected so as to compare, on reception of an emergency braking signal (which triggers the emergency braking warning device according to the invention) the voltage and or the intensity of the supply current of the conventional brake light (s) with their nominal values; in the event of a value indicating that the stop light or lights are not on, the comparator sends a signal closing a backup power supply circuit for conventional stop lights.
  • ADXL TM family of electronic components
  • ADXL TM accelerometer sold by the company "Analog Devices TM"
  • a "brake signal” SF ie a signal sent when the brake pedal is actuated, and / or when the usual STOP lights come on, arrives in the control unit.
  • a REG voltage regulator transforms the signal voltage into a voltage of 5V. This signal is sent to an accelerometer which, by its function, analyzes the accelerations (in particular negative under braking, and in particular in the event of intensive braking causing a very decelerating drill, or even in the event of shock).
  • the output signal from the accelerometer is sent to a voltage control oscillator (VCO), which is a voltage / frequency converter, and which is coupled to a microprocessor having a built-in memory function (MEM).
  • VCO voltage control oscillator
  • MEM built-in memory function
  • This MEM system memorizes the frequency given by the VCO, so that, even after the vehicle has stopped, the third brake light (F) continues to flash at this frequency, as long as the brake pedal is actuated.
  • the VCO therefore directs a square output signal, at a certain frequency stored in MEM, to a power component P capable of supplying the fire (F).
  • This component P is essentially composed of a level translator transistor, capable of using the low power output signal from the VCO to power the fire (F) which, in turn, requires a high power supply to operate.
  • This example illustrates the case of a light (F) that you want to make flashing during emergency braking.
  • the invention also relates to any use, in any motor vehicle, of a device as described above.
  • a person skilled in the art will of course be able to envisage other directly accessible variants, which the invention also covers, on reading this description and in the light of his own knowledge.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The invention concerns an alarm or warning device of emergency braking, that is a device designed to be very seldom activated, only in case of very sudden braking, at a predetermined deceleration threshold. Said device comprises means (Acc) detecting braking intensity, coupled with an incorporated electronic device (VCO/MEM) and capable of transmitting thereto data concerning braking intensity, said incorporated electronic device then acting on the electric power supply module (P) of the warning signal light (F) so that the visual characteristics of said warning signal light are modulated depending on the braking intensity, according to a preset programme contained in the incorporated electronic device.

Description

Dispositif d'avertissement lumineux de freinage intensif pour montage à l'arrière des véhicules automobiles Warning light for intensive braking for mounting on the rear of motor vehicles
La présente invention concerne le secteur technique des accessoires pour les véhicules automobiles, et plus particulièrement les automobiles elles- mêmes.The present invention relates to the technical sector of accessories for motor vehicles, and more particularly the motor vehicles themselves.
On sait que depuis plusieurs années est apparu, puis est devenu obligatoire, le montage d'un troisième feu rouge arrière indicateur de freinage (dit " feu de stop "). Ce troisième feu stop doit occuper une position centrale à l'arriére du véhicule, et relativement élevéeWe know that for several years appeared, then became compulsory, the fitting of a third rear red brake indicator light (called "brake light"). This third brake light must occupy a central position at the rear of the vehicle, and relatively high
Le but est double.The goal is twofold.
D'une part, la position élevée et centrale du feu permet pour un conducteur de déceler, au travers des surfaces vitrées du véhicule qui le précède immédiatement, le fait que le véhicule précédent freine. Son temps de réaction est ainsi notablement réduit.On the one hand, the high and central position of the light allows a driver to detect, through the glass surfaces of the vehicle immediately preceding it, the fact that the preceding vehicle brakes. Its reaction time is thus significantly reduced.
D'autre part, la position centrale et élevée du feu se trouve directement dans le champ visuel du conducteur suiveur, ce qui réduit, dans ce cas de figure également, son temps de réaction.On the other hand, the central and elevated position of the light is directly in the field of vision of the follower conductor, which also reduces, in this case, its reaction time.
Cependant, l'indication de freinage ne suffit pas à assurer la sécurité passive. En effet, l'intensité du freinage représente également un facteur important.However, the braking indication is not sufficient to ensure passive safety. The intensity of braking is also an important factor.
Il existe une différence fondamentale d'information, pour les véhicules suiveurs, entre un freinage léger ou moyen d'adaptation au trafic et un freinage d'urgence synonyme de risque immédiat de collision par l'arrière.There is a fundamental difference in information, for following vehicles, between light braking or means of adaptation to traffic and emergency braking synonymous with an immediate risk of collision from the rear.
Or aucun dispositif prenant en compte de manière satisfaisante ce facteur n'a été proposé à ce jour. Il existe en effet de nombreuses difficultés à résoudre, dont certaines concernent la sécurité. Il est en effet impératif que la fiabilité soit assurée à cent pour cent, ce qui n'est pas le cas des systèmes à bille, masselotte, bain d'huile et analogues proposés antérieurement, et il est également impératif que le nouveau dispositif ne perturbe pas le fonctionnement normal des feux stop.However, no device that satisfactorily takes this factor into account has been proposed to date. There are indeed many difficulties to be resolved, some of which relate to security. It is indeed imperative that reliability be guaranteed at one hundred percent, which is not the case with ball systems, flyweight, oil bath and the like proposed previously, and it is also imperative that the new device does not disturb not the normal operation of the brake lights.
Il faut également que le message d'alerte adressé au conducteur suiveur soit clair et efficace, et donc ne soit pas confondu avec ou dans d'autres indications lumineuses, notamment de freinage.It is also necessary that the alert message addressed to the following driver is clear and effective, and therefore is not confused with or in other luminous indications, in particular of braking.
L'invention vise donc un dispositif d'alerte, non pas simplement d'intensité de freinage (dont Fart antérieur donne de nombreux exemples) ce qui provoquerait trop d'allumages et donc banaliserait le dispositif jusqu'à le rendre inefficace (ce qui s'est d'ailleurs passé pour les feux stop actuels) mais un dispositif d'alerte ou d'avertissement de freinage d'urgence, c'est à dire un dispositif ne s'allumant que très rarement, en cas de freinage extrêmement brutal, à un seuil qui sera fixé par l'homme de métier selon des paramètres connus ou faciles à établir.The invention therefore relates to an alert device, not simply a braking intensity (of which the prior art gives numerous examples) which would cause too many ignitions and therefore would trivialize the device until it becomes ineffective (which s '' is also passed for the current brake lights) but an emergency braking warning or warning device, i.e. a device that only lights up very rarely, in the event of extremely brutal braking, at a threshold which will be fixed by a person skilled in the art according to known or easily established parameters.
La présente invention a pour objet un dispositif d'avertissement lumineux de freinage intensif (ou d'urgence), destiné à être monté à l'arrière d'un véhicule automobile, caractérisé en ce qu'il comprend :The subject of the present invention is a light warning device for intensive braking (or emergency braking), intended to be mounted at the rear of a motor vehicle, characterized in that it comprises:
un moyen de détection de l'intensité de freinagea means of detecting the braking intensity
couplé à une électronique embarquée et capable d'adresser à celle-ci des informations sur l'intensité du freinage,coupled to on-board electronics and capable of sending braking information to the latter,
ladite électronique embarquée agissant ensuite sur le module d'alimentation électrique dudit dispositif d'avertissement lumineux,said on-board electronics then acting on the power supply module of said light warning device,
afin que les caractéristiques visuelles dudit dispositif d'avertissement lumineux soient modulées en fonction de l'intensité du freinage, selon un programme préétabli contenu dans l'électronique embarquée. Selon un mode de réalisation particulier de l'invention, ledit moyen de détection comprend au moins un capteur inertiel capable de délivrer vers l'électronique un signal modulé correspondant à l'intensité du freinage.so that the visual characteristics of said light warning device are modulated as a function of the braking intensity, according to a preset program contained in the on-board electronics. According to a particular embodiment of the invention, said detection means comprises at least one inertial sensor capable of delivering to the electronics a modulated signal corresponding to the intensity of the braking.
Naturellement, ce capteur ne prend en compte que les freinages, c'est à dire les accélérations négatives ou décélérations, et élimine les facteurs d'accélération.Naturally, this sensor only takes into account braking, that is to say negative accelerations or decelerations, and eliminates the acceleration factors.
Selon un mode de réalisation particulier de l'invention, ledit moyen de détection comprend un moyen de secours relié formant contact électrique à à butée de la pédale de frein.According to a particular embodiment of the invention, said detection means comprises an emergency means connected forming an electrical contact at the stop of the brake pedal.
Selon un mode de réalisation particulier et non limitatif de l'invention, ledit moyen de détection comprend une liaison avec le système ABS du véhicule, de telle sorte que le dispositif selon l'invention se déclenche lorsque l'ABS se déclenche ; en effet, l'ABS n'entre en fonction que lors de freinages d'urgence, ce qui est le but visé par l'invention, ou bien en cas de freinage dans des conditions dangereuses de circulation, comme la pluie ou la neige ou le verglas, ce dernier type de freinage pouvant être également signalé très utilement aux véhicules suiveurs grâce à l'invention.According to a particular and nonlimiting embodiment of the invention, said detection means comprises a connection with the ABS system of the vehicle, so that the device according to the invention is triggered when the ABS is triggered; indeed, the ABS only comes into operation during emergency braking, which is the aim of the invention, or else when braking under dangerous traffic conditions, such as rain or snow or ice, this latter type of braking can also be very usefully signaled to following vehicles thanks to the invention.
Le dispositif d'avertissement de freinage comporte soit un seul élément lumineux, soit plusieurs éléments lumineux, éventuellement de couleurs, formes et intensité ou aspect visuel différents, ou au contraire identiques.The braking warning device comprises either a single light element or several light elements, possibly of different colors, shapes and intensity or visual appearance, or on the contrary identical.
Chaque élément lumineux peut être constitué d'une seule surface ou volume lumineux, comme une seule lampe ou un seul élément au néon, ou au contraire être constitué d'une pluralités de surfaces ou volumes lumineux, comme une pluralité de diodes électroluminescentes (LED), ou de lampes, ou d'extrémités de fibres optiques, et analogues, ou de toute surface ou volume lumineux existant ou qui apparaîtra dans le futur, et capable de produire extrêmement rapidement une brillance suffisante pour déclencher un état de vigilance ou d'alerte chez un conducteur suiveur. Dans toute la présente demande, les termes d'" éléments lumineux " désigneront, par simplicité, cette généralité. Selon un mode de réalisation préféré, le dispositif d'avertissement de freinage est le troisième feu stop central.Each light element can consist of a single light surface or volume, such as a single lamp or a single neon element, or on the contrary consist of a plurality of light surfaces or volumes, such as a plurality of light emitting diodes (LEDs). , or of lamps, or of ends of optical fibers, and the like, or of any surface or luminous volume existing or which will appear in the future, and capable of producing extremely rapidly sufficient brightness to trigger a state of alertness or alert with a follower driver. Throughout the present application, the terms "light elements" will denote, for simplicity, this generality. According to a preferred embodiment, the braking warning device is the third central brake light.
Selon un mode de réalisation préféré, le dispositif d'avertissement de freinage est intégre au troisième feu stop centralAccording to a preferred embodiment, the braking warning device is integrated into the third central brake light
Selon un mode de réalisation préféré, le dispositif d'avertissement de freinage est adjacent au troisième feu stop central.According to a preferred embodiment, the braking warning device is adjacent to the third central brake light.
Selon un autre mode de réalisation, le dispositif d'avertissement de freinage est dissocié du troisième feu stop central.According to another embodiment, the braking warning device is dissociated from the third central brake light.
Selon un mode de réalisation préféré, le dispositif d'avertissement de freinage est un feu a surface ou volume unique.According to a preferred embodiment, the device is a brake warning fire single surface or volume.
Selon un mode de réalisation préféré, le dispositif d'avertissement de freinage est un feu a surfaces ou volumes multiples.According to a preferred embodiment, the braking warning device is a light with multiple surfaces or volumes.
Selon un mode de réalisation préféré, le dispositif d'avertissement de freinage est un feu à surfaces ou volumes multiples, de coloris et/ou d'intensité et/ou de forme et/ou d'aspect visuel, adjacents les uns par rapport aux autres.According to a preferred embodiment, the braking warning device is a light with multiple surfaces or volumes, of color and / or intensity and / or shape and / or visual appearance, adjacent to each other. other.
Selon un mode de réalisation préféré, le dispositif d avertissement de freinage est un feu a surfaces ou volumes multiples, de coloris et/ou d'intensité et/ou de forme et/ou d'aspect visuel, non adjacents les uns par rapport aux autres.According to a preferred embodiment, the braking warning device is a light with multiple surfaces or volumes, of color and / or intensity and / or shape and / or visual appearance, not adjacent to each other. other.
Selon un mode de réalisation particulier de l'invention, l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode continu lorsque ledit capteur délivre un signal dépassant un seuil prédéterminé d'intensité de freinage.According to a particular embodiment of the invention, the on-board electronics commands the power supply module of the braking warning device to operate the latter in continuous mode when said sensor delivers a signal exceeding a predetermined intensity threshold of braking.
Selon un mode de réalisation particulier de l'invention, l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode clignotant lorsque ledit capteur délivre un signal dépassant un seuil prédéterminé d'intensité de freinage.According to a particular embodiment of the invention, the on-board electronics control the power supply module of the device brake warning to operate the latter in flashing mode when said sensor delivers a signal exceeding a predetermined threshold of braking intensity.
Selon encore un mode de réalisation particulier de l'invention, l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode clignotant rapide lorsque ledit capteur délivre un signal dépassant un autre seuil prédéterminé d'intensité de freinage.According to yet another particular embodiment of the invention, the on-board electronics command the power supply module of the braking warning device to operate the latter in rapid flashing mode when said sensor delivers a signal exceeding another predetermined threshold d braking intensity.
Selon encore un mode de réalisation particulier de l'invention, l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode clignotant très rapide lorsque ledit capteur délivre un signal dépassant un autre seuil prédéterminé d'intensité de freinage.According to yet another particular embodiment of the invention, the on-board electronics command the power supply module of the brake warning device to operate the latter in very rapid flashing mode when said sensor delivers a signal exceeding another predetermined threshold. braking intensity.
Selon encore un mode de réalisation particulier de l'invention, l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner séparément les divers éléments lumineux de ce dernier, selon une séquence d'allumage et d'extinction préétablie, lorsque ledit capteur délivre un signal dépassant un autre seuil prédéterminé d'intensité de freinage.According to yet another particular embodiment of the invention, the on-board electronics command the power supply module of the braking warning device to operate the various light elements of the latter separately, according to an ignition and preset extinction, when said sensor delivers a signal exceeding another predetermined braking intensity threshold.
L'électronique embarquée, pour assurer une sécurité maximale, doit être adaptée pour ne pas interférer avec le fonctionnement des feux de stop, et notamment pas avec le troisième feu stop central.The on-board electronics, to ensure maximum safety, must be adapted so as not to interfere with the operation of the brake lights, and in particular not with the third central brake light.
Notamment, l'électronique embarquée et ses connections avec le module d'alimentation du dispositif d'avertissement de freinage comprennent un comparateur de tension ou d'intensité électrique connecté de manière à comparer, à la réception d'un signal de freinage d'urgence (lequel déclenche le dispositif d'avertissement de freinage d'urgence selon l'invention) la tension et ou l'intensité du courant d'alimentation du ou des feux stop classiques avec leur valeur nominales ; en cas de valeur indiquant que le ou les feux stops ne sont pas allumés, le comparateur envoie un signal fermant un circuit d'alimentation de secours des feux stop classiques. D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre, et en référence au dessin annexé, sur lequel :In particular, the on-board electronics and its connections to the power supply module of the braking warning device include a voltage or electrical current comparator connected so as to compare, on reception of an emergency braking signal (which triggers the emergency braking warning device according to the invention) the voltage and or the intensity of the supply current of the conventional brake light (s) with their nominal values; in the event of a value indicating that the stop light or lights are not on, the comparator sends a signal closing a backup power supply circuit for conventional stop lights. Other characteristics and advantages of the invention will be better understood on reading the description which follows, and with reference to the appended drawing, in which:
la figure unique représente un mode de réalisation non limitatif se schéma fonctionnel " synoptique électronique V.I.F."the single figure represents a non-limiting embodiment of the functional diagram "electronic synoptic V.I.F."
Sur la figure unique annexée, les références ont les significations suivantes :In the single appended figure, the references have the following meanings:
REG régulateur de tensionREG voltage regulator
Ace. accéléromètreAce. accelerometer
S F signal freinS F brake signal
V C O " Voltage Controlled Oscillator "V C O "Voltage Controlled Oscillator"
Oscillateur contrôlé en tensionVoltage controlled oscillator
ME M système de mémorisationME M memory system
" ADXL™ " famille de composants électroniques ;"ADXL ™" family of electronic components;
ici, accéléromètre ADXL™ commercialisé par la société " Analog Devices ™ "here, ADXL ™ accelerometer sold by the company "Analog Devices ™"
(F) troisième feu(F) third light
Exemple de réalisation non limitatif :Non-limiting example of implementation:
Si l'on se reporte à la figure unique, on voit que le principe de fonctionnement st le suivant. Un " signal frein " SF (c'est à dire un signal émis lorsque la pédale de frein est actionnée, et/ou lorsque les feux STOP habituels s'allument), arrive dans l'unité de contrôle.If we refer to the single figure, we see that the operating principle is the following. A "brake signal" SF (ie a signal sent when the brake pedal is actuated, and / or when the usual STOP lights come on), arrives in the control unit.
Un régulateur de tension REG transforme la tension du signal en une tension de 5V. Ce signal est envoyé vers un accéléromètre qui, de par sa fonction, analyse les accélérations (notamment négatives au freinage, et notamment en cas de freinage intensif provoquant une très foret décélération, voire même en cas de choc).A REG voltage regulator transforms the signal voltage into a voltage of 5V. This signal is sent to an accelerometer which, by its function, analyzes the accelerations (in particular negative under braking, and in particular in the event of intensive braking causing a very decelerating drill, or even in the event of shock).
Le signal de sortie de l'accéierometres est envoyé vers un oscillateur contrôle en tension (VCO) , qui est un convertisseur tension / fréquence, et qui est couplé à un microprocesseur possédant une fonction de mémorisation intégrée (MEM).The output signal from the accelerometer is sent to a voltage control oscillator (VCO), which is a voltage / frequency converter, and which is coupled to a microprocessor having a built-in memory function (MEM).
L'intérêt de ce système MEM est qu'il mémorise la fréquence donnée par le VCO, de telle manière que, même après que le véhicule se soit arrêté, le troisième feu stop (F) continue à clignoter selon cette fréquence, tant que la pédale de frein est actionnée.The advantage of this MEM system is that it memorizes the frequency given by the VCO, so that, even after the vehicle has stopped, the third brake light (F) continues to flash at this frequency, as long as the brake pedal is actuated.
Le VCO dirige donc un signal de sortie carré, sous une certaine fréquence mémorisée en MEM, vers un composant de puissance P capable d'alimenter le feu (F). Ce composant P est essentiellement compose d'un transistor translateur de niveau, capable d'utiliser le signal basse puissance de sortie du VCO pour alimenter le feu (F) qui, lui, nécessite une puissance élevée d'alimentation pour fonctionner.The VCO therefore directs a square output signal, at a certain frequency stored in MEM, to a power component P capable of supplying the fire (F). This component P is essentially composed of a level translator transistor, capable of using the low power output signal from the VCO to power the fire (F) which, in turn, requires a high power supply to operate.
Cet exemple illustre le cas d'un feu (F) que l'on désire rendre clignotant lors d'un freinage d'urgence.This example illustrates the case of a light (F) that you want to make flashing during emergency braking.
L'invention concerne également toute utilisation, dans tout véhicule automobile, d'un dispositif tel que décrit ci-dessus. L'homme de métier saura bien entendu envisager d'autres variantes directement accessibles, et que l'invention couvre également, à la lecture de la présente description et à la lumière de ses connaissances propres. The invention also relates to any use, in any motor vehicle, of a device as described above. A person skilled in the art will of course be able to envisage other directly accessible variants, which the invention also covers, on reading this description and in the light of his own knowledge.

Claims

REVENDICATIONS
1 Dispositif d'avertissement lumineux de freinage intensif (ou d'urgence), destiné a être monté a l'amère d'un véhicule automobile, caractérise en ce qu'il comprend :1 Luminous warning device for intensive braking (or emergency), intended to be fitted to the bitter end of a motor vehicle, characterized in that it comprises:
un moyen de détection de l'intensité de freinagea means of detecting the braking intensity
couple à une électronique embarquée et capable d'adresser à celle-ci des informations sur l'intensité du freinage,torque to on-board electronics and capable of sending braking information to the latter,
ladite électronique embarquée agissant ensuite sur le module d'alimentation électrique dudit dispositif d'avertissement lumineux,said on-board electronics then acting on the power supply module of said light warning device,
afin que les caractéristiques visuelles dudit dispositif d'avertissement lumineux soient modulées en fonction de l'intensité du freinage, selon un programme préétabli contenu dans l'électronique embarquéeso that the visual characteristics of said light warning device are modulated as a function of the braking intensity, according to a preset program contained in the on-board electronics
2 Dispositif selon la revendication 1 , caracteπse en ce qu'il comprend au moins un capteur inertiel Ace. capable de délivrer vers l'électronique VCO/MEM un signal modulé correspondant a l'intensité du freinage2 Device according to claim 1, caracteπse in that it comprises at least one Ace inertial sensor. capable of delivering to the VCO / MEM electronics a modulated signal corresponding to the braking intensity
3 Dispositif selon la revendication 2, caractérisé en ce que ledit capteur Ace ne prend en compte que les freinages, c'est a dire les accélérations négatives ou décélérations, et élimine les facteurs d'accélération3 Device according to claim 2, characterized in that said Ace sensor takes into account only braking, that is to say negative accelerations or decelerations, and eliminates the acceleration factors
4 Dispositif selon l'une quelconque des revendications 1 a 3, caractérisé en ce que ledit moyen de détection comprend un moyen de secours relié formant contact électrique à la butée de la pédale de frein. 5 Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit moyen de détection comprend une liaison avec le système ABS du véhicule, de telle sorte que le dispositif selon l'invention se déclenche lorsque l'ABS se déclenche.4 Device according to any one of claims 1 to 3, characterized in that said detection means comprises an emergency means connected forming electrical contact to the stop of the brake pedal. 5 Device according to any one of claims 1 to 3, characterized in that said detection means comprises a connection with the ABS system of the vehicle, so that the device according to the invention is triggered when the ABS is triggered.
6 Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que ledit dispositif d'avertissement de freinage comporte un seul élément lumineux.6 Device according to any one of claims 1 to 5, characterized in that said braking warning device comprises a single light element.
7 Dispositif selon l'une quelconque des revendications 1 à 5 caractérisé en ce que ledit dispositif d'avertissement de freinage comporte plusieurs éléments lumineux, éventuellement de couleurs, formes et intensité ou aspect visuel différents, ou au contraire identiques.7 Device according to any one of claims 1 to 5 characterized in that said braking warning device comprises several light elements, possibly of different colors, shapes and intensity or visual appearance, or on the contrary identical.
8 Dispositif selon la revendication 6 ou 7, caractérisé en ce que le ou chacun des élément(s) lumineux est ou sont constitué(s) d'une seule surface ou volume lumineux, comme une seule lampe ou un seul élément au néon.8 Device according to claim 6 or 7, characterized in that the or each of the light element (s) is or consist (s) of a single light surface or volume, such as a single lamp or a single neon element.
9 Dispositif selon la revendication 6 ou 7, caractérisé en ce que le ou chacun des élément(s) lumineux est ou sont constitué(s) d'une pluralité de surfaces ou volumes lumineux, comme une pluralité de diodes électroluminescentes (LED), ou de lampes, ou d'extrémités de fibres optiques, ou de toute surface ou volume lumineux capable de produire extrêmement rapidement une brillance suffisante pour déclencher un état de vigilance ou d'alerte chez un conducteur suiveur.9 Device according to claim 6 or 7, characterized in that the or each of the light element (s) is or consist (s) of a plurality of light surfaces or volumes, such as a plurality of light emitting diodes (LED), or of lamps, or of ends of optical fibers, or of any surface or luminous volume capable of producing extremely rapidly sufficient brightness to trigger a state of alertness or alert in a follower driver.
10 Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif d'avertissement de freinage est le troisième feu stop central.10 Device according to any one of claims 1 to 9, characterized in that the braking warning device is the third central brake light.
11 Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif d'avertissement de freinage est intégré au troisième feu stop central. 12 Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif d'avertissement de freinage est adjacent au troisième feu stop central.11 Device according to any one of claims 1 to 9, characterized in that the braking warning device is integrated into the third central brake light. 12 Device according to any one of claims 1 to 9, characterized in that the braking warning device is adjacent to the third central brake light.
13 Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif d'avertissement de freinage est dissocié du troisième feu stop central.13 Device according to any one of claims 1 to 9, characterized in that the braking warning device is dissociated from the third central brake light.
14 Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le dispositif d'avertissement de freinage est un feu à surface ou volume unique.14 Device according to any one of claims 1 to 13, characterized in that the braking warning device is a light with a single surface or volume.
15 Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le dispositif d'avertissement de freinage est un feu à surfaces ou volumes multiples.15 Device according to any one of claims 1 to 13, characterized in that the braking warning device is a light with multiple surfaces or volumes.
16 Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le dispositif d'avertissement de freinage est un feu à surfaces ou volumes multiples, de coloris et/ou d'intensité et/ou de forme et/ou d'aspect visuel, adjacents les uns par rapport aux autres.16 Device according to any one of claims 1 to 13, characterized in that the braking warning device is a light with multiple surfaces or volumes, of colors and / or intensity and / or shape and / or d 'visual appearance, adjacent to each other.
17 Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le dispositif d'avertissement de freinage est un feu à surfaces ou volumes multiples, de coloris et/ou d'intensité et/ou de forme et/ou d'aspect visuel, non adjacents les uns par rapport aux autres.17 Device according to any one of claims 1 to 13, characterized in that the braking warning device is a light with multiple surfaces or volumes, of colors and / or intensity and / or shape and / or d 'visual appearance, not adjacent to each other.
18 Dispositif selon l'une quelconque des revendications 1 à 17, caractérisé en ce que l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode continu lorsque ledit capteur délivre un signal dépassant un seuil prédéterminé d'intensité de freinage.18 Device according to any one of claims 1 to 17, characterized in that the on-board electronics commands the power supply module of the braking warning device to operate the latter in continuous mode when said sensor delivers a signal exceeding a predetermined braking intensity threshold.
19 Dispositif selon l'une quelconque des revendications 1 à 17, caractérisé en ce que l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode clignotant lorsque ledit capteur délivre un signal dépassant un seuil prédéterminé d'intensité de freinage.19 Device according to any one of claims 1 to 17, characterized in that the on-board electronics commands the power supply module of the brake warning device to operate this last in flashing mode when said sensor delivers a signal exceeding a predetermined braking intensity threshold.
20 Dispositif selon l'une quelconque des revendications 1 à 19, caractérisé en ce que l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode clignotant rapide lorsque ledit capteur délivre un signal dépassant un autre seuil prédéterminé d'intensité de freinage.20 Device according to any one of claims 1 to 19, characterized in that the on-board electronics commands the power supply module of the braking warning device to operate the latter in rapid flashing mode when said sensor delivers an exceeding signal another predetermined braking intensity threshold.
21 Dispositif selon l'une quelconque des revendications 1 à 20, caractérisé en ce que l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner ce dernier en mode clignotant très rapide lorsque ledit capteur délivre un signal dépassant un autre seuil prédéterminé d'intensité de freinage.21 Device according to any one of claims 1 to 20, characterized in that the on-board electronics commands the power supply module of the braking warning device to operate the latter in very rapid flashing mode when said sensor delivers a signal exceeding another predetermined braking intensity threshold.
22 Dispositif selon l'une quelconque des revendications 1 à 21 , caractérisé en ce que l'électronique embarquée commande au module d'alimentation du dispositif d'avertissement de freinage de faire fonctionner séparément les divers éléments lumineux de ce dernier, selon une séquence d'allumage et d'extinction préétablie, lorsque ledit capteur délivre un signal dépassant un autre seuil prédéterminé d'intensité de freinage.22 Device according to any one of claims 1 to 21, characterized in that the on-board electronics commands the power supply module of the brake warning device to operate the various light elements of the latter separately, according to a sequence of 'preset ignition and extinction, when said sensor delivers a signal exceeding another predetermined threshold of braking intensity.
23 Dispositif selon l'une quelconque des revendications 1 à 22, caractérisé en ce que l'électronique embarquée et ses connections avec le module d'alimentation du dispositif d'avertissement de freinage comprennent un comparateur de tension ou d'intensité électrique connecté de manière à comparer, à la réception d'un signal de freinage d'urgence (lequel déclenche le dispositif d'avertissement de freinage d'urgence selon l'invention), la tension et ou l'intensité du courant d'alimentation du ou des feux stop classiques avec leur valeur nominales et en ce que, en cas de valeur indiquant que le ou les feux stops ne sont pas allumés, le comparateur envoie un signal fermant un circuit d'alimentation de secours des feux stop classiques.23 Device according to any one of claims 1 to 22, characterized in that the on-board electronics and its connections with the power supply module of the braking warning device comprise a voltage or electric current comparator connected so to compare, on receipt of an emergency braking signal (which activates the emergency braking warning device according to the invention), the voltage and or the intensity of the supply current of the light (s) conventional stop lights with their nominal value and in that, in the event of a value indicating that the stop light (s) are not lit, the comparator sends a signal closing a backup power supply circuit for conventional stop lights.
24 Dispositif selon l'une quelconque des revendications 1 à 23, caractérisé en ce qu'il comprend l'émission d'un " signal frein " SF (signal émis lorsque la pédale de frein est actionnée, et/ou lorsque les feux STOP habituels s'allument) vers unité de contrôle qui comprend un régulateur de tension REG qui transforme la tension du signal en une tension de 5V, après quoi ce signal est envoyé vers un accéléromètre Ace. qui, de par sa fonction, analyse les accélérations (notamment négatives au freinage, et notamment en cas de freinage intensif provoquant une très foret décélération, voire même en cas de choc), après quoi le signal de sortie de l'accéléromètre est envoyé vers un oscillateur contrôlé en tension (VCO) , qui est un convertisseur tension / fréquence, et qui est couplé à un microprocesseur possédant une fonction de mémorisation intégrée (MEM), capable de mémoriser la fréquence donnée par le VCO, de telle manière que, même après que le véhicule se soit arrêté, le troisième feu stop (F) continue à clignoter selon cette fréquence, tant que la pédale de frein est actionnée, le VCO dirigeant donc un signal de sortie carré, sous une certaine fréquence mémorisée en MEM, vers un composant de puissance P capable d'alimenter le feu (F), ce composant P étant essentiellement composé d'un transistor translateur de niveau, capable d'utiliser le signal basse puissance de sortie du VCO pour alimenter le feu (F).24 Device according to any one of claims 1 to 23, characterized in that it comprises the emission of a "brake signal" SF (signal emitted when the brake pedal is actuated, and / or when the usual STOP lights light up) to control unit which includes a REG voltage which transforms the signal voltage into a voltage of 5V, after which this signal is sent to an Ace accelerometer. which, by its function, analyzes the accelerations (in particular negative under braking, and in particular in the event of intensive braking causing a very decelerating drill, even even in the event of shock), after which the output signal of the accelerometer is sent to a voltage controlled oscillator (VCO), which is a voltage / frequency converter, and which is coupled to a microprocessor having an integrated memory function (MEM), capable of memorizing the frequency given by the VCO, so that even after the vehicle has stopped, the third brake light (F) continues to flash at this frequency, as long as the brake pedal is actuated, the VCO therefore directing a square output signal, at a certain frequency memorized in MEM, towards a power component P capable of supplying the fire (F), this component P being essentially composed of a level translator transistor, capable of using the low power signal VCO output ance to supply the fire (F).
25 Utilisation dans tout véhicule automobile d'un dispositif selon l'une quelconque des revendications 1 à 24. 25 Use in any motor vehicle of a device according to any one of claims 1 to 24.
PCT/FR2000/003237 1999-11-25 2000-11-20 Warning light device for intensive braking to be mounted at the rear of motor vehicles WO2001038138A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00983383A EP1235700A1 (en) 1999-11-25 2000-11-20 Warning light device for intensive braking to be mounted at the rear of motor vehicles
AU20146/01A AU2014601A (en) 1999-11-25 2000-11-20 Warning light device for intensive braking to be mounted at the rear of motor vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9914957A FR2801548B1 (en) 1999-11-25 1999-11-25 INTENSIVE BRAKING LIGHT WARNING DEVICE FOR MOUNTING AT THE REAR OF MOTOR VEHICLES
FR99/14957 1999-11-25

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FR2877894A1 (en) * 2004-11-18 2006-05-19 Laurent Chaulieu Signaling device for e.g. road vehicle, has accelerometer rigidly associated to indicator in position, such that indicator and accelerometer are oriented with respect to moving direction of vehicle
CN100382991C (en) * 2004-04-30 2008-04-23 中国科学院上海微系统与信息技术研究所 A vehicle acceleration or deceleration/braking grading display method and device realized by one sensor
ES2353709A1 (en) * 2009-07-29 2011-03-04 Jose Francos Francos Brake light improved. (Machine-translation by Google Translate, not legally binding)

Families Citing this family (1)

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SI3363685T1 (en) * 2017-02-21 2022-04-29 Odelo Gmbh Vehicle light and method for its operation

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FR2317129A1 (en) * 1975-07-09 1977-02-04 Carre Andre Severe braking warning lamp - has swinging mass restrained by spring forming electrical circuit to relay operated rearward facing warning lamp
FR2431706A1 (en) * 1978-07-18 1980-02-15 Desigaud Michel Vehicle deceleration brake light indicator esp. for lorries - uses change in circuit resistance to provide increasing brightness at application of brake
EP0299933A2 (en) * 1987-07-16 1989-01-18 B.P.T. S.p.A. Light-emitting deceleration and stopping indicator for motor vehicles
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* Cited by examiner, † Cited by third party
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CN100382991C (en) * 2004-04-30 2008-04-23 中国科学院上海微系统与信息技术研究所 A vehicle acceleration or deceleration/braking grading display method and device realized by one sensor
FR2877894A1 (en) * 2004-11-18 2006-05-19 Laurent Chaulieu Signaling device for e.g. road vehicle, has accelerometer rigidly associated to indicator in position, such that indicator and accelerometer are oriented with respect to moving direction of vehicle
ES2353709A1 (en) * 2009-07-29 2011-03-04 Jose Francos Francos Brake light improved. (Machine-translation by Google Translate, not legally binding)

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FR2801548A1 (en) 2001-06-01
EP1235700A1 (en) 2002-09-04
FR2801548B1 (en) 2002-02-15
AU2014601A (en) 2001-06-04

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