EP0657869A1 - Multiple-function control module for vehicle horn - Google Patents
Multiple-function control module for vehicle horn Download PDFInfo
- Publication number
- EP0657869A1 EP0657869A1 EP94402758A EP94402758A EP0657869A1 EP 0657869 A1 EP0657869 A1 EP 0657869A1 EP 94402758 A EP94402758 A EP 94402758A EP 94402758 A EP94402758 A EP 94402758A EP 0657869 A1 EP0657869 A1 EP 0657869A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- horn
- control module
- alarm
- input
- sound
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
Definitions
- the present invention relates to audible warning devices for motor vehicles.
- road vehicle audible alarms operate on the bell principle. That is to say that when the horn is energized, a coil attracts a plunger core secured to a membrane. This moving assembly comes, during its movement, to open a breaker which interrupts the passage of the electric current in the coil. The force of attraction is thus interrupted and, under the effect of the elasticity of the membrane, the moving element tends to regain its rest position by restoring the passage of current in the coil. The moving part is thus set in vibration and the membrane emits a sound whose frequency corresponds to the period of its movement.
- such a device Powered by the vehicle battery, such a device emits a unique sound, the frequency of which is determined by its various constituents: mass of the moving part, elasticity of the membrane, air gap of the contact breaker, etc.
- Standard vehicle alarms consume a high average current, from 4 to 7 amps depending on the make, model and noise level emitted.
- the peak current is even higher, typically 10 to 16 amps.
- the switching of such a current generally requires the use of a relay because the arrangement of the controls and the ergonomics of the driving position of the vehicles automobiles would not allow direct control to be used.
- the statutory audible warning device can itself be used as an audible alert signal, by being coupled to anti-theft alarm devices mounted on the vehicle.
- the horn is actuated intermittently at a frequency of 1 to 2 Hz and a duty cycle of approximately 50%.
- the object of the present invention is to simplify and make less expensive the vehicle sound equipment mentioned above, by making it possible to use the standard vehicle horn not only for the normal alarm and alarm functions, but also for the noisemaker function by eliminating the need for a separate sound generator to exercise this function.
- the applicant produced an acceptable quality buzzer sound by supplying sound alarms of its manufacture with electrical pulses of 12 V amplitude whose duration does not exceed 500 microseconds and the frequency is greater than 650 Hz.
- the best results have been obtained for whole or partial harmonic frequencies of the mechanical resonance frequency of the warning devices used. This resonant frequency is little different from the frequency at which the alarms sound when powered by a battery.
- the present invention proposes to replace the conventional control relay of the horn by an electronic module with semiconductor component, and to connect this electronic module on the one hand to a source of fine electrical pulses to supply the buzzer function and secondly to a continuous power supply to provide the horn function.
- This phenomenon stems from the fact that the rest position of the membrane is distinct from its average position during operation as a buzzer.
- the operation of the mobile equipment of the alarms is in fact asymmetrical: due to the absence of a permanent magnetic field, the core of the mobile equipment can only be attracted and in no case repelled by the coil.
- the mechanical rest position (absence of current in the coil) of the moving part is located towards the end of its travel farthest from the coil while its neutral position (middle position) in operation is located closer to the coil - all the closer as the conduction time increases.
- the slamming effect is due to the sudden additional displacement of the membrane necessary to pass from its mechanical rest point to the neutral point of its movement. The click is all the more unpleasant as the speed of this movement is great.
- the membrane in a progressive manner to the neutral point of its movement.
- the width of the control pulses is gradually increased from zero to its maximum value (approximately 500 microseconds), which then makes it possible to obtain a noisy sound from a ongoing acoustic quality.
- the snap which occurs during power-up also occurs during power-down, that is to say at the end of the sound emitted.
- it is less noticeable because it is amalgamated in the sound being transmitted and, moreover, its intensity is random. This slamming is then due to the more or less sudden return of the membrane from the position it occupies at the time of the power cut to its mechanical rest point.
- the random sound intensity observed depends on the position and the kinetic energy of the membrane at the time of the cut.
- FIG. 1 there is shown schematically the elements of the apparatus according to the invention comprising a power switch 1 whose output is connected to a standard horn 2.
- the input of the power switch 1 receives, d a first shaping circuit 3 during actuation of the horn control, a continuous supply whose waveform is shown in FIG. 2, to ensure conventional operation of the horn 2.
- the input of the power switch 1 also receives, when an alarm command is triggered, from a second shaping device 4 connected to a timer 5 a clocked continuous supply signal whose waveform is shown in Figure 3.
- the horn 2 can thus be operated at a frequency of 1 to 2 Hz and a duty cycle of about 50% to produce an audible alarm signal.
- the input of the power switch 1 is also connected to the output of a pulse generator 6, the input of which is connected via a duration modulation device to the starting circuit 7 of the buzzer control. .
- the starting circuit 7 is also connected to the timer 5.
- the input of the power switch 1 receives from the generator 6 short pulse trains clocked by the timer 5 to supply at the level of the 'horn 2 an audible buzzer signal.
- the amplitude of the electrical pulses is 12 V and their duration is slightly less than 500 microseconds, while the frequency is slightly greater than 650 Hz.
- the width of the control pulses is modulated to increase from approximately zero to 500 microseconds at the start of each train of pulses (which has the effect of gradually bringing the membrane of the horn 2 at the neutral point of its movement), and to decrease from approximately 500 microseconds to zero at the end of each train of pulses (by gradually bringing the membrane back to its mechanical rest point). This has the effect of eliminating the unpleasant clicks which would otherwise occur at the beginning and at the end of each sound emission.
- the control of the horn is carried out by a MOS transistor T2, which is driven by an impedance adapter stage T1 made necessary by the excessively high output impedance of circuits U5 and U6.
- This positive voltage can be applied at point A in three different ways, each corresponding to one of the operating modes of the device (horn, alarm, buzzer), via one of the three diodes D6, D3 and D7.
- the terminal S3 When, first, the terminal S3 is supplied with a positive voltage (+ 12V), this voltage is directly transmitted to the resistor R15 and causes the conduction of T1 and T2 in a permanent manner during all the time that this voltage will be applied.
- the assembly functions as a simple relay and this is the conventional mode of operation of the horn.
- the circuit U6 and the components which surround it form a conventional low frequency oscillator.
- the output voltage of the circuit U6 oscillates between a value close to zero and a value close to the supply voltage, the rhythm of this oscillation being fixed by the value of the resistors R17 and R21 and of capacitor C7. It is advantageous to obtain a frequency of approximately 1.5 Hz.
- the square voltage thus obtained at the output of circuit U6 is applied to point A through diode D3 and causes intermittent conduction of T1 and T2 at the frequency of 0.5Hz. The alarm therefore operates in alarm mode.
- the necessary fine pulses are supplied by the circuit U5, through the diode D7, when the terminal S2 is connected to the + of the power supply.
- the circuit U5 functions as a comparator receiving on its inverting input (-) a triangular signal a whose frequency corresponds to that of the buzzer (tone of "beeps” emitted) and on its non-inverting input (+) a trapezoidal signal b whose period corresponds to the period of recurrence of the sound of the buzzer (spacing of "beeps").
- the triangular signal applied to the input (-) of circuit U5 is obtained by circuits U3 and U4 mounted in a sawtooth generator according to a conventional diagram.
- the trapezoidal signal b applied to the input (+) of the circuit U5 is obtained starting from a rectangular signal c supplied by the circuit U1 mounted in a conventional manner.
- This square signal is sent to the stage U2 mounted as an integrator which has the effect of transforming the steep rising and falling edges of the square signal into gentle slopes.
- the inclination of the slopes obtained depends on the time constant R24C4: the higher this is, the more the slopes are inclined and the longer the rise and fall time of the signal. It has been found experimentally that effective suppression of clicks requires that the rise and fall times of the signal be not less than 10 millisecond.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
- Burglar Alarm Systems (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Alarm Systems (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
La présente invention concerne les avertisseurs sonores pour véhicules à moteur.The present invention relates to audible warning devices for motor vehicles.
Comme on le sait, les avertisseurs sonores des véhicules routiers fonctionnent selon le principe de la sonnette. C'est-à-dire que lorsque l'avertisseur est alimenté, une bobine attire un noyau plongeur solidaire d'une membrane. Cet équipage mobile vient, lors de son déplacement, ouvrir un rupteur qui interrompt le passage du courant électrique dans la bobine. La force d'attraction se trouve ainsi interrompue et, sous l'effet de l'élasticité de la membrane, l'équipage mobile tend à regagner sa position de repos en rétablissant au passage le courant dans la bobine. L'équipage mobile est ainsi mis en vibration et la membrane émet un son dont la fréquence correspond à la période de son déplacement.As we know, road vehicle audible alarms operate on the bell principle. That is to say that when the horn is energized, a coil attracts a plunger core secured to a membrane. This moving assembly comes, during its movement, to open a breaker which interrupts the passage of the electric current in the coil. The force of attraction is thus interrupted and, under the effect of the elasticity of the membrane, the moving element tends to regain its rest position by restoring the passage of current in the coil. The moving part is thus set in vibration and the membrane emits a sound whose frequency corresponds to the period of its movement.
Alimenté par la batterie du véhicule, un tel dispositif émet un son unique dont la fréquence est déterminée par ses différents constituants : masse de l'équipage mobile, élasticité de la membrane, entrefer du rupteur etc....Powered by the vehicle battery, such a device emits a unique sound, the frequency of which is determined by its various constituents: mass of the moving part, elasticity of the membrane, air gap of the contact breaker, etc.
Les avertisseurs standard de véhicule consomment un courant moyen élevé, de 4 à 7 ampères suivant les marques, les modèles et le niveau sonore émis. Toutefois le courant de crète est plus élevé encore, typiquement de 10 à 16 ampères. La commutation d'un tel courant nécessite généralement l'utilisation d'un relais car la disposition des commandes et l'ergonomie du poste de conduite des véhicules automobiles ne permettraient pas d'utiliser une commande directe.Standard vehicle alarms consume a high average current, from 4 to 7 amps depending on the make, model and noise level emitted. However, the peak current is even higher, typically 10 to 16 amps. The switching of such a current generally requires the use of a relay because the arrangement of the controls and the ergonomics of the driving position of the vehicles automobiles would not allow direct control to be used.
Outre l'avertisseur sonore réglementaire destiné aux autres usagers de la route, il s'est avéré nécessaire d'attirer l'attention du conducteur même du véhicule dans certaines circonstances, par exemple lorsqu'il quitte son véhicule en laissant l'éclairage allumé. A cet effet la signalisation sonore s'est avérée la mieux adaptée car elle attire l'attention quelle que soit la direction du regard. Bien entendu, le son émis est différent et le niveau sonore considérablement plus faible par rapport à l'avertisseur sonore réglementaire.In addition to the statutory audible warning intended for other road users, it has proved necessary to draw the attention of the driver of the vehicle itself in certain circumstances, for example when he leaves his vehicle leaving the lights on. For this purpose, sound signaling has proven to be the most suitable because it attracts attention regardless of the direction of gaze. Of course, the sound emitted is different and the sound level considerably lower compared to the statutory horn.
Cette fonction est à l'heure actuelle remplie par des générateurs sonores séparés ou "bruiteurs".This function is currently fulfilled by separate sound generators or "noisemakers".
De plus, comme il est connu, l'avertisseur sonore réglementaire peut être lui-même utilisé comme signal sonore d'alerte, en étant couplé à des dispositifs d'alarme antivol montés sur le véhicule. Dans ce cas, l'avertisseur est actionné de manière intermittente à une fréquence de 1 à 2 Hz et un rapport cyclique de 50% environ.In addition, as is known, the statutory audible warning device can itself be used as an audible alert signal, by being coupled to anti-theft alarm devices mounted on the vehicle. In this case, the horn is actuated intermittently at a frequency of 1 to 2 Hz and a duty cycle of approximately 50%.
La présente invention a pour objet de simplifier et de rendre moins onéreux l'équipement sonore de véhicule mentionné ci-dessus, en permettant d'utiliser l'avertisseur sonore standard du véhicule non seulement pour les fonctions d'avertisseur normal et d'alarme, mais aussi pour la fonction de bruiteur en supprimant la nécessité d'un générateur sonore séparé pour exercer cette fonction.The object of the present invention is to simplify and make less expensive the vehicle sound equipment mentioned above, by making it possible to use the standard vehicle horn not only for the normal alarm and alarm functions, but also for the noisemaker function by eliminating the need for a separate sound generator to exercise this function.
La déposante a en effet découvert que, de façon surprenante, lorsqu'un avertisseur sonore standard est alimenté par des impulsions de courant suffisamment brèves, le rupteur de l'avertisseur n'a pas le temps de s'ouvrir et la membrane vibre alors à la fréquence des impulsions. L'énergie sonore ainsi produite est considérablement plus faible que celle de l'avertisseur normal, mais cela ne constitue pas un inconvénient pour la fonction de bruiteur.The Applicant has in fact discovered that, surprisingly, when a standard audible warning device is supplied with sufficiently short current pulses, the contactor's breaker does not have time to open and the membrane then vibrates at the frequency of the pulses. The sound energy thus produced is considerably lower than that of the normal horn, but this is not a disadvantage for the buzzer function.
Ainsi la déposante a produit un son de bruiteur de qualité acceptable en alimentant des avertisseurs sonores de sa fabrication par des impulsions électriques d'amplitude 12 V dont la durée n'excède pas 500 microsecondes et la fréquence est supérieure à 650 Hz. Les meilleurs résultats ont été obtenus pour des fréquences harmoniques entières ou partielles de la fréquence de résonance mécanique des avertisseurs utilisés. Cette fréquence de résonance est peu différente de la fréquence à laquelle sonnent les avertisseurs lorsqu'on les alimente par une batterie.Thus, the applicant produced an acceptable quality buzzer sound by supplying sound alarms of its manufacture with electrical pulses of 12 V amplitude whose duration does not exceed 500 microseconds and the frequency is greater than 650 Hz. The best results have been obtained for whole or partial harmonic frequencies of the mechanical resonance frequency of the warning devices used. This resonant frequency is little different from the frequency at which the alarms sound when powered by a battery.
A cet effet, la présente invention propose de remplacer le relais de commande conventionnel de l'avertisseur sonore par un module électronique à composant semi-conducteur, et de relier ce module électronique d'une part à une source d'impulsions électriques fines pour fournir la fonction de bruiteur et d'autre part à une alimentation continue pour fournir la fonction d'avertisseur.To this end, the present invention proposes to replace the conventional control relay of the horn by an electronic module with semiconductor component, and to connect this electronic module on the one hand to a source of fine electrical pulses to supply the buzzer function and secondly to a continuous power supply to provide the horn function.
Selon une caractéristique supplémentaire de l'invention, on adjoint au dit module électronique un circuit de cadencement du fonctionnement pour réaliser la fonction alarme.According to an additional characteristic of the invention, there is added to said electronic module an operating timing circuit for performing the alarm function.
La société déposante a toutefois constaté que le fonctionnement de l'avertisseur sonore en bruiteur, au moyen du module électronique de commande mentionné ci-dessus, provoque à chaque mise sous tension un claquement désagréable précédant le son du bruiteur.The applicant company has however noted that the operation of the buzzer sounder, by means of the electronic control module mentioned above, causes an unpleasant click before each sounder is switched on.
Ce phénomène provient du fait que la position de repos de la membrane est distincte de sa position moyenne lors d'un fonctionnement en bruiteur. Le fonctionnement de l'équipage mobile des avertisseurs est en effet asymétrique : du fait de l'absence d'un champ magnétique permanent, le noyau de l'équipage mobile ne peut être qu'attiré et en aucun cas repoussé par la bobine. Il en résulte que la position de repos mécanique (absence de courant dans la bobine) de l'équipage mobile se situe vers l'extrémité de sa course la plus éloignée de la bobine alors que sa position neutre (position médiane) en fonctionnement se situe plus près de la bobine-d'autant plus près que le temps de conduction augmente. L'effet de claquement est dû au brusque déplacement supplémentaire de la membrane nécessaire pour passer de son point de repos mécanique au point neutre de son mouvement. Le claquement est d'autant plus désagréable que la vitesse de ce déplacement est grande.This phenomenon stems from the fact that the rest position of the membrane is distinct from its average position during operation as a buzzer. The operation of the mobile equipment of the alarms is in fact asymmetrical: due to the absence of a permanent magnetic field, the core of the mobile equipment can only be attracted and in no case repelled by the coil. As a result, the mechanical rest position (absence of current in the coil) of the moving part is located towards the end of its travel farthest from the coil while its neutral position (middle position) in operation is located closer to the coil - all the closer as the conduction time increases. The slamming effect is due to the sudden additional displacement of the membrane necessary to pass from its mechanical rest point to the neutral point of its movement. The click is all the more unpleasant as the speed of this movement is great.
Selon une caractéristique supplémentaire de l'invention, pour éviter ce claquement, il est proposé d'amener la membrane d'une manière progressive au point neutre de son déplacement. A cet effet, à la mise en route de la fonction de bruiteur, on fait croître progressivement la largeur des impulsions de commande de zéro à sa valeur maximale (500 microsecondes environ) ce qui permet alors d'obtenir un son de bruiteur d'une qualité acoustique irréprochable.According to an additional characteristic of the invention, to avoid this slamming, it is proposed to bring the membrane in a progressive manner to the neutral point of its movement. To this end, when the noisemaker function is started, the width of the control pulses is gradually increased from zero to its maximum value (approximately 500 microseconds), which then makes it possible to obtain a noisy sound from a impeccable acoustic quality.
La déposante a aussi remarqué que le claquement qui se produit lors de la mise sous tension se produit également lors de la mise hors tension, c'est-à-dire à la fin du son émis. Il est toutefois moins perceptible car amalgamé dans le son en cours d'émission et, de plus, son intensité est aléatoire. Ce claquement est alors dû au retour plus ou moins brusque de la membrane de la position qu'elle occupe au moment de la coupure du courant à son point de repos mécanique. L'intensité sonore aléatoire observée dépend de la position et de l'énergie cinétique de la membrane au moment où va se produire la coupure.The applicant has also noticed that the snap which occurs during power-up also occurs during power-down, that is to say at the end of the sound emitted. However, it is less noticeable because it is amalgamated in the sound being transmitted and, moreover, its intensity is random. This slamming is then due to the more or less sudden return of the membrane from the position it occupies at the time of the power cut to its mechanical rest point. The random sound intensity observed depends on the position and the kinetic energy of the membrane at the time of the cut.
Selon une autre caractéristique supplémentaire de l'invention il est proposé, pour éliminer le claquement se produisant lors de la mise hors tension, d'agir comme pour éliminer le claquement constaté lors de la mise sous tension, en réalisant une décroissance progressive de la largeur des impulsions de commande pour assurer de façon suffisamment progressive le retour de la membrane à son point de repos mécanique.According to another additional characteristic of the invention, it is proposed, in order to eliminate the slamming occurring during powering down, to act as in order to eliminate the slamming observed during powering up, by achieving a progressive decrease in width control pulses to ensure sufficiently progressive the return of the membrane to its mechanical rest point.
Pour bien faire comprendre le dispositif selon l'invention on en décrira ci-après, à titre d'exemple sans caractère limitatif, une forme d'exécution préférée en référence au dessin schématique annexé dans lequel :
- la figure 1 est un schéma synoptique d'un dispositif selon l'invention permettant d'obtenir, à partir d'un avertisseur sonore standard les fonctions d'avertisseur, de bruiteur et d'alarme ;
- les figures 2 à 4 représentent les formes d'onde des impulsions appliquées au commutateur de l'avertisseur sonore pour réaliser respectivement les fonctions d'avertisseur, d'alarme et de bruiteur ;
- la figure 5 est un schéma du circuit électronique constituant le dispositif selon l'invention; et
- la figure 6 représente les signaux rectangulaire et trapézoïdal reçus à l'entrée du comparateur.
- FIG. 1 is a block diagram of a device according to the invention making it possible to obtain, from a standard audible alarm, the functions of alarm, buzzer and alarm;
- Figures 2 to 4 show the waveforms of the pulses applied to the horn switch to perform the horn, alarm and buzzer functions, respectively;
- Figure 5 is a diagram of the electronic circuit constituting the device according to the invention; and
- FIG. 6 represents the rectangular and trapezoidal signals received at the input of the comparator.
En référence à la figure 1, on a représenté schématiquement les éléments de l'appareil selon l'invention comprenant un commutateur de puissance 1 dont la sortie est reliée à un avertisseur sonore standard 2. L'entrée du commutateur de puissance 1 reçoit, d'un premier circuit de mise en forme 3 lors de l'actionnement de la commande d'avertisseur, une alimentation continue dont la forme d'onde est représentée à la figure 2, pour assurer un fonctionnement conventionnel de l'avertisseur sonore 2.Referring to Figure 1, there is shown schematically the elements of the apparatus according to the invention comprising a power switch 1 whose output is connected to a
L'entrée du commutateur de puissance 1 reçoit aussi, lors du déclenchement d'une commande d'alarme, d'un second dispositif de mise en forme 4 relié à un cadenceur 5 un signal d'alimentation continu cadencé dont la forme d'onde est représentée à la figure 3. L'avertisseur 2 peut ainsi être actionné à une fréquence de 1 à 2 Hz et un rapport cyclique de 50% environ pour produire un signal sonore d'alarme.The input of the power switch 1 also receives, when an alarm command is triggered, from a second shaping device 4 connected to a timer 5 a clocked continuous supply signal whose waveform is shown in Figure 3. The
L'entrée du commutateur de puissance 1 est également reliée à la sortie d'un générateur d'impulsions 6 dont l'entrée est reliée par l'intermédiaire d'un dispositif de modulation de durée au circuit de démarrage 7 de la commande du bruiteur. Le circuit de démarrage 7 est aussi relié au cadenceur 5. Comme on le voit à la figure 4, l'entrée du commutateur de puissance 1 reçoit du générateur 6 de brefs trains d'impulsions cadencés par le cadenceur 5 pour fournir au niveau de l'avertisseur 2 un signal sonore de bruiteur. Dans l'exemple représenté l'amplitude des impulsions électriques est de 12 V et leur durée est un peu inférieure à 500 microsecondes, alors que la fréquence est légèrement supérieure à 650 Hz.The input of the power switch 1 is also connected to the output of a
Ainsi qu'on le voit sur la figure 4, la largeur des impulsions de commande est modulée pour croître de zéro à 500 microsecondes environ au début de chaque train d'impulsions (ce qui a pour effet d'amener de façon progressive la membrane de l'avertisseur 2 au point neutre de son déplacement), et pour décroître de 500 microsecondes environ à zéro à la fin de chaque train d'impulsions (en ramenant de façon progressive la membrane à son point de repos mécanique). Ceci a pour effet de supprimer les claquements désagréables qui se produiraient sinon au début et à la fin de chaque émission sonore.As seen in FIG. 4, the width of the control pulses is modulated to increase from approximately zero to 500 microseconds at the start of each train of pulses (which has the effect of gradually bringing the membrane of the
Sur le schéma de réalisation du dispositif donné à titre d'exemple sur la figure 5, la commande de l'avertisseur s'effectue par un transistor MOS T2, lequel est attaqué par un étage adaptateur d'impédance T1 rendu nécessaire par la trop forte impédance de sortie des circuits U5 et U6.On the diagram of embodiment of the device given by way of example in FIG. 5, the control of the horn is carried out by a MOS transistor T2, which is driven by an impedance adapter stage T1 made necessary by the excessively high output impedance of circuits U5 and U6.
La présence d'une tension positive, voisine de la tension d'alimentation, au point commun A entre les résistances R15 et R22 provoque la mise en conduction de T1 et T2 et, partant, l'alimentation de la bobine de l'avertisseur.The presence of a positive voltage, close to the supply voltage, at the common point A between the resistors R15 and R22 causes the conduction of T1 and T2 and, consequently, the supply of the coil of the horn.
Cette tension positive peut être appliquée au point A de trois manières différentes, correspondant chacune à l'un des modes de fonctionnement de l'appareil (avertisseur, alarme, bruiteur), via l'une des trois diodes D6, D3 et D7.This positive voltage can be applied at point A in three different ways, each corresponding to one of the operating modes of the device (horn, alarm, buzzer), via one of the three diodes D6, D3 and D7.
Lorsque, d'abord, la borne S3 est alimentée par une tension positive (+12V), cette tension est directement transmise à la résistance R15 et provoque la mise en conduction de T1 et T2 d'une manière permanente pendant tout le temps que cette tension sera appliquée. L'ensemble fonctionne comme un simple relais et il s'agit là du mode de fonctionnement conventionnel de l'avertisseur.When, first, the terminal S3 is supplied with a positive voltage (+ 12V), this voltage is directly transmitted to the resistor R15 and causes the conduction of T1 and T2 in a permanent manner during all the time that this voltage will be applied. The assembly functions as a simple relay and this is the conventional mode of operation of the horn.
Le circuit U6 et les composants qui l'entourent (résistances R17, R18, R19, R20, R21 et condensateur C7) forment un oscillateur basse fréquence conventionnel. Lorsque la borne S1 est reliée au + de l'alimentation, la tension de sortie du circuit U6 oscille entre une valeur proche de zéro et une valeur proche de la tension d'alimentation, le rythme de cette oscillation étant fixé par la valeur des résistances R17 et R21 et du condensateur C7. On peut avantageusement obtenir une fréquence de 1,5Hz environ. La tension carrée ainsi obtenue à la sortie du circuit U6 est appliquée au point A à travers la diode D3 et provoque la mise en conduction intermittente de T1 et T2 à la fréquence de 0,5Hz. L'avertisseur fonctionne ainsi en mode alarme.The circuit U6 and the components which surround it (resistors R17, R18, R19, R20, R21 and capacitor C7) form a conventional low frequency oscillator. When the terminal S1 is connected to the + of the supply, the output voltage of the circuit U6 oscillates between a value close to zero and a value close to the supply voltage, the rhythm of this oscillation being fixed by the value of the resistors R17 and R21 and of capacitor C7. It is advantageous to obtain a frequency of approximately 1.5 Hz. The square voltage thus obtained at the output of circuit U6 is applied to point A through diode D3 and causes intermittent conduction of T1 and T2 at the frequency of 0.5Hz. The alarm therefore operates in alarm mode.
Pour le mode de fonctionnement en bruiteur, les impulsions fines nécessaires sont fournies par le circuit U5, à travers la diode D7, lorsque la borne S2 est reliée au + de l'alimentation. Dans ces conditions le circuit U5 fonctionne comme un comparateur recevant sur son entrée inverseuse (-) un signal triangulaire a dont la fréquence correspond à celle du bruiteur (tonalité des "bips" émis) et sur son entrée non inverseuse (+) un signal trapézoïdal b dont la période correspond à la période de récurrence du son du bruiteur (espacement des "bips").For the buzzer operating mode, the necessary fine pulses are supplied by the circuit U5, through the diode D7, when the terminal S2 is connected to the + of the power supply. Under these conditions the circuit U5 functions as a comparator receiving on its inverting input (-) a triangular signal a whose frequency corresponds to that of the buzzer (tone of "beeps" emitted) and on its non-inverting input (+) a trapezoidal signal b whose period corresponds to the period of recurrence of the sound of the buzzer (spacing of "beeps").
Ce fonctionnement est illustré à la figure 6.This operation is illustrated in Figure 6.
Le signal triangulaire a appliqué à l'entrée (-) du circuit U5 est obtenu par les circuit U3 et U4 montés en générateur de dent de scie selon un schéma conventionnel.The triangular signal applied to the input (-) of circuit U5 is obtained by circuits U3 and U4 mounted in a sawtooth generator according to a conventional diagram.
Le signal trapézoïdal b appliqué à l'entrée (+) du circuit U5 est obtenu en partant d'un signal rectangulaire c fourni par le circuit U1 monté de façon conventionnelle. Ce signal carré est envoyé à l'étage U2 monté en intégrateur qui a pour effet de transformer les fronts raides de montée et de descente du signal carré en pentes douces. L'inclinaison des pentes obtenues dépend de la constante de temps R24C4 : plus celle-ci est élevée, plus les pentes sont inclinées et plus le temps de montée et de descente du signal est long. On a constaté expérimentalement qu'une suppression efficace des claquements nécessite que les temps de montée et de descente du signal ne soient pas inférieurs à 10 milisencondes.The trapezoidal signal b applied to the input (+) of the circuit U5 is obtained starting from a rectangular signal c supplied by the circuit U1 mounted in a conventional manner. This square signal is sent to the stage U2 mounted as an integrator which has the effect of transforming the steep rising and falling edges of the square signal into gentle slopes. The inclination of the slopes obtained depends on the time constant R24C4: the higher this is, the more the slopes are inclined and the longer the rise and fall time of the signal. It has been found experimentally that effective suppression of clicks requires that the rise and fall times of the signal be not less than 10 millisecond.
On comprendra que la description ci-dessus a été donnée à titre d'exemple, sans caractère limitatif, et que des adjonctions ou des modifications constructives pourraient y être apportées sans sortir du cadre de la présente invention.It will be understood that the above description has been given by way of example, without limitation, and that additions or constructive modifications could be made without departing from the scope of the present invention.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9314511 | 1993-12-03 | ||
| FR9314511A FR2713383B1 (en) | 1993-12-03 | 1993-12-03 | Multi-function control module for a motor vehicle horn. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0657869A1 true EP0657869A1 (en) | 1995-06-14 |
| EP0657869B1 EP0657869B1 (en) | 1999-10-20 |
Family
ID=9453530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19940402758 Expired - Lifetime EP0657869B1 (en) | 1993-12-03 | 1994-12-02 | Multiple-function control module for vehicle horn |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0657869B1 (en) |
| DE (1) | DE69421246T2 (en) |
| ES (1) | ES2141210T3 (en) |
| FR (1) | FR2713383B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103857A1 (en) * | 2002-06-06 | 2003-12-18 | Fabbrica Italiana Accumulatori Motocapri | Electronic control circuit and acoustic-signal emitting device for vehicles |
| US6788188B2 (en) | 2000-07-25 | 2004-09-07 | Fabbrica Italiana Accumulatori Motocarri | Multi-function electronic horn warning system |
| US6816065B2 (en) | 2000-08-01 | 2004-11-09 | Fabbrica Italiana Accumulatori Motocarri | Electromechanical horn warning system |
| WO2012058741A1 (en) * | 2010-11-04 | 2012-05-10 | Wadih Antonio Garios | Sound measuring and regulating device for a horn |
| ES2586397A1 (en) * | 2016-04-18 | 2016-10-14 | Clarton Horn, S.A.U. | Multifunction acoustic warning (Machine-translation by Google Translate, not legally binding) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2822408A1 (en) * | 1978-05-23 | 1979-12-06 | Degenkolbe | Safety warning for car door - operates if door is opened with ignition key still in place by switching on horn |
| US4193060A (en) * | 1978-11-01 | 1980-03-11 | Lectron Products, Inc. | Control circuit for a tone generator |
| DE2928498A1 (en) * | 1979-07-14 | 1981-04-02 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Acoustic signal generator for motorcycle - has two electromagnetic coils allowing use as warning horn and signalling buzzer |
-
1993
- 1993-12-03 FR FR9314511A patent/FR2713383B1/en not_active Expired - Fee Related
-
1994
- 1994-12-02 EP EP19940402758 patent/EP0657869B1/en not_active Expired - Lifetime
- 1994-12-02 ES ES94402758T patent/ES2141210T3/en not_active Expired - Lifetime
- 1994-12-02 DE DE1994621246 patent/DE69421246T2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2822408A1 (en) * | 1978-05-23 | 1979-12-06 | Degenkolbe | Safety warning for car door - operates if door is opened with ignition key still in place by switching on horn |
| US4193060A (en) * | 1978-11-01 | 1980-03-11 | Lectron Products, Inc. | Control circuit for a tone generator |
| DE2928498A1 (en) * | 1979-07-14 | 1981-04-02 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Acoustic signal generator for motorcycle - has two electromagnetic coils allowing use as warning horn and signalling buzzer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6788188B2 (en) | 2000-07-25 | 2004-09-07 | Fabbrica Italiana Accumulatori Motocarri | Multi-function electronic horn warning system |
| US6816065B2 (en) | 2000-08-01 | 2004-11-09 | Fabbrica Italiana Accumulatori Motocarri | Electromechanical horn warning system |
| WO2003103857A1 (en) * | 2002-06-06 | 2003-12-18 | Fabbrica Italiana Accumulatori Motocapri | Electronic control circuit and acoustic-signal emitting device for vehicles |
| WO2012058741A1 (en) * | 2010-11-04 | 2012-05-10 | Wadih Antonio Garios | Sound measuring and regulating device for a horn |
| US9266469B2 (en) | 2010-11-04 | 2016-02-23 | Wadih Antonio Garios | Sound measuring and regulating device for a horn |
| ES2586397A1 (en) * | 2016-04-18 | 2016-10-14 | Clarton Horn, S.A.U. | Multifunction acoustic warning (Machine-translation by Google Translate, not legally binding) |
| WO2017182684A1 (en) * | 2016-04-18 | 2017-10-26 | Clarton Horn, S.A.U. | Multifunctional acoustic warning device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2141210T3 (en) | 2000-03-16 |
| DE69421246T2 (en) | 2000-06-08 |
| FR2713383B1 (en) | 1996-02-23 |
| FR2713383A1 (en) | 1995-06-09 |
| EP0657869B1 (en) | 1999-10-20 |
| DE69421246D1 (en) | 1999-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0657869B1 (en) | Multiple-function control module for vehicle horn | |
| FR2465265A1 (en) | CONTROL CIRCUIT FOR AN APPARATUS ELEMENT IN WHICH AN ELECTRIC MOTOR SYSTEM COMMUNICATES AN OSCILLATION MOVEMENT | |
| EP0712059B1 (en) | Circuit for driving a piezo-electric vibrator | |
| EP0881623B1 (en) | Control circuit for a vibrating membrane | |
| FR2468483A1 (en) | WARNING CIRCUIT FOR MOTOR VEHICLES, MONITORING THE WEAR OF THE BELT AND THE LIGHTING | |
| FR2494522A1 (en) | CONTROL DEVICE FOR A DIRECT CURRENT MOTOR | |
| FR2460538A1 (en) | Time-controlled switch with time generator - has oscillating circuit with output counted so that current supplied to contact-locking electromagnet is changed at set count | |
| FR2565727A1 (en) | Warning system for vehicle | |
| FR2654861A1 (en) | Improved device for generating and modulating sensory signals | |
| EP0180566A1 (en) | Alarm signalling device for a person in case of an emergency | |
| FR2627613A1 (en) | SMOKING PROHIBITION WARNING APPARATUS | |
| JP3078586B2 (en) | Vehicle notification device | |
| CH355097A (en) | Device intended to produce a limited series of electrical pulses | |
| BE424605A (en) | ||
| FR2712749A1 (en) | An electronic control device for a DC electric motor for a reciprocating drive system and application to a vehicle window wiper system. | |
| EP0428432A1 (en) | Self-adjusting ultrasonic anti-theft device | |
| FR2565717A1 (en) | Alarm circuit to warn driver of ice on road | |
| FR2618033A1 (en) | OSCILLATOR MOUNTING WITH A PIEZOCERAMIC VIBRATOR ELEMENT | |
| EP0019550A2 (en) | Sound alarm device, in particular for signalizing attempts to break into or to steal a motor vehicle | |
| FR2654862A1 (en) | Improved device for generating and modulating sensory signals | |
| FR2590532A1 (en) | Flashing device for headlamps comprising an audible indicator. | |
| FR2469030A1 (en) | Delay circuit for warning lamp activation - uses preset counter and clock with count enable controlled by fault to prevent normal fluctuations generating alarm | |
| FR2654863A1 (en) | Improved device for generating and modulating sensory signals | |
| BE552257A (en) | ||
| BE515398A (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE ES GB IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19951107 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 19981214 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE ES GB IT NL SE |
|
| REF | Corresponds to: |
Ref document number: 69421246 Country of ref document: DE Date of ref document: 19991125 |
|
| RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: SOCIETE DE COMPOSANTS ELECTRIQUES |
|
| ITF | It: translation for a ep patent filed |
Owner name: FIAMMENGHI - DOMENIGHETTI |
|
| NLT2 | Nl: modifications (of names), taken from the european patent patent bulletin |
Owner name: SOCIETE DE COMPOSANTS ELECTRIQUES |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20000131 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2141210 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20081216 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20081114 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20081211 Year of fee payment: 15 Ref country code: IT Payment date: 20081210 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20081219 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081216 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20090130 Year of fee payment: 15 |
|
| BERE | Be: lapsed |
Owner name: SOC. DE *COMPOSANTS ELECTRIQUES Effective date: 20091231 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20100701 |
|
| EUG | Se: european patent has lapsed | ||
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091202 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100701 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100701 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091202 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20110302 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091202 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091203 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110301 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091203 |