FR2625031A1 - Twilight switch device for a motor vehicle - Google Patents
Twilight switch device for a motor vehicle Download PDFInfo
- Publication number
- FR2625031A1 FR2625031A1 FR8718129A FR8718129A FR2625031A1 FR 2625031 A1 FR2625031 A1 FR 2625031A1 FR 8718129 A FR8718129 A FR 8718129A FR 8718129 A FR8718129 A FR 8718129A FR 2625031 A1 FR2625031 A1 FR 2625031A1
- Authority
- FR
- France
- Prior art keywords
- motor vehicle
- switch device
- twilight
- whose
- twilight switch
- 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.)
- Pending
Links
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
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
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- 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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/20—Indexing codes relating to the driver or the passengers
- B60Q2300/21—Manual control
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- 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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/314—Ambient light
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
La présente invention a trait à un dispositif interrupteur "crépusculaire" intégrable dans tout véhicule automobile. The present invention relates to a "twilight" switch device that can be integrated into any motor vehicle.
Lorsque la luminosité extérieure décline suffisamment, l'allumage des feux ou phares d'un véhicule automobile est subordonné à une action du conducteur. Dans des cas répétitifs, par exemple lorsqu'on roule sur une route fréquemment entrecoupée de tunnels, la combinaison de deux faits, à savoir la luminosité de pleine journée en dehors des tunnels et la répétition machinale de l'acte peut entrainer l'oubli de procéder à l'extinction des feux. Au surplus, la manoeuvre fréquente mais irrégulière peut perturber la conduite ou, si elle est oubliée, présenter un danger. When the exterior brightness declines sufficiently, the switching on of the lights or headlights of a motor vehicle is subject to action by the driver. In repetitive cases, for example when driving on a road frequently intersected by tunnels, the combination of two facts, namely the brightness of daylight outside the tunnels and the mechanical repetition of the act can lead to the forgetting of switch off the lights. In addition, frequent but irregular maneuvering can disrupt driving or, if it is forgotten, present a danger.
Le dispositif selon l'invention pallie à ces inconvénients en proposant une automatisation de l'allumage des feux asservie à un capteur photosensible. La variation. de la luminosité, qu'elle soit brusque ou progressive, modifie l'état du capteur, ladite modification est prise en compte et traitée par un bloc électronique de traitement du signal avant d'être envoyée sous forme d'une information électrique intelligible au système de commande des récepteurs. The device according to the invention overcomes these drawbacks by proposing an automation of the lighting of the lights controlled by a photosensitive sensor. Variation. brightness, whether abrupt or progressive, modifies the state of the sensor, said modification is taken into account and processed by an electronic signal processing unit before being sent in the form of intelligible electrical information to the system receiver control.
Bien entendu, il est possible d'adapter le capteur à l'utilisation, en employant une cellule photoélectrique "rapide" qui est destinée à l'utilisation en journée lorsqu'on a à franchir des zones obscures successives, ou encore une cellule "lente" qui correspond aux baisses douces et graduelles de la lumière extérieure. Le montage électronique est placé sur la liaison électrique en amont du commutateur de sélection des éclairages. Par conséquent, l'allumage automatique n'a lieu que si la commande appropriée a été préalablement actionnée. Par exemple, si l'on désire que les feux de croisement s'allument automatiquement à l'entrée de tunnels ou à la tombée de la nuit, il est nécessaire de mettre la commande du tableau de bord en position adéquate, faute de quoi le circuit ne peut pas être fermé et l'allumage n'aura pas lieu. Of course, it is possible to adapt the sensor to the use, by using a "fast" photocell which is intended for daytime use when one has to cross successive dark areas, or even a "slow" cell. "which corresponds to the soft and gradual drops of the outside light. The electronic assembly is placed on the electrical link upstream of the light selection switch. Consequently, automatic ignition takes place only if the appropriate control has been previously activated. For example, if you want the dipped beam headlights to come on automatically at the entrance of tunnels or at nightfall, it is necessary to put the dashboard control in the correct position, otherwise the circuit cannot be closed and ignition will not take place.
On va maintenant décrire le dispositif de l'invention plus en détail, en se référant à la figure 1 annexée qui représente le plan du montage électronique. We will now describe the device of the invention in more detail, with reference to Figure 1 attached which shows the plan of the electronic assembly.
Le circuit comporte trois étages qui traduisent la nécessité d'acquérir un signal électrique, de l'amplifier afin qu'il soit utilisable par le dernier étage chargé de la commande débouchant sur l'effet recherché. The circuit has three stages which reflect the need to acquire an electrical signal, to amplify it so that it can be used by the last stage responsible for the control leading to the desired effect.
C'est une cellule photoélectrique (1), selon l'exemple de mise en oeuvre explicité, qui traduit le paramètre extérieur de luminosité en un signal électrique, et qui est associée à des résistances (2) de réglage et de polarisation calculées d'après les caractéristiques de ladite cellule et celles qui sont compatibles avec l'entrée de l'amplificateur, compte-tenu également du fait que l'alimentation est assurée par la batterie du véhicule automobile. It is a photoelectric cell (1), according to the example of implementation explained, which translates the external parameter of brightness into an electrical signal, and which is associated with resistors (2) of adjustment and of polarization calculated from after the characteristics of said cell and those which are compatible with the input of the amplifier, also taking into account that power is supplied by the battery of the motor vehicle.
Le second étage comporte deux amplificateurs intégrés classiques (3) et (4) qui amènent le signal en sortie avec une amplitude suffisante pour attaquer le dernier étage par le biais de la base du transistor de sortie (5). The second stage has two conventional integrated amplifiers (3) and (4) which deliver the signal at an output with sufficient amplitude to drive the last stage through the base of the output transistor (5).
Celui-ci est en général bloqués sauf lorsque ledit signal est suffisant pour le rendre passant, c'est-à-dire lorsque la tension base-émetteur dépasse la tension du seuil du semi-conducteur. A cet instant, la bobine du relais (6) est parcourue par le courant du collecteur : le contact du relais se ferme, les feux de l'automobile qui ont été auparavant sélectionnés par la commande adéquate s'allument. The latter is generally blocked except when said signal is sufficient to make it passable, that is to say when the base-emitter voltage exceeds the threshold voltage of the semiconductor. At this instant, the relay coil (6) is traversed by the current of the collector: the relay contact closes, the car lights which were previously selected by the appropriate control light up.
Bien évidemment, le dispositif ainsi décrit ne représente qu'une illustration possible, laquelle n'est pas limitative; toute variante entrant dans son cadre est englobée par l'invention. Obviously, the device thus described represents only one possible illustration, which is not limiting; any variant coming within its scope is encompassed by the invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8718129A FR2625031A1 (en) | 1987-12-21 | 1987-12-21 | Twilight switch device for a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8718129A FR2625031A1 (en) | 1987-12-21 | 1987-12-21 | Twilight switch device for a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2625031A1 true FR2625031A1 (en) | 1989-06-23 |
Family
ID=9358283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8718129A Pending FR2625031A1 (en) | 1987-12-21 | 1987-12-21 | Twilight switch device for a motor vehicle |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2625031A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2394417A1 (en) * | 1977-06-13 | 1979-01-12 | Ouriachi Mabrouk | Automatic switch for car lamps - has photocell and amplifier timer control putting out of action hand operated switches |
JPS6078837A (en) * | 1983-10-07 | 1985-05-04 | Nippon Denso Co Ltd | Vehicle's lighting lamp controller |
US4558260A (en) * | 1983-05-04 | 1985-12-10 | Nippondenso Co., Ltd. | Head lamps control system for use on vehicles |
US4599544A (en) * | 1984-05-24 | 1986-07-08 | General Motors Corporation | Vehicle headlamp beam control |
FR2577742A1 (en) * | 1985-02-20 | 1986-08-22 | Laloum James | Control device for automatic switching on and off of the lights of a vehicle as a function of the daylight |
-
1987
- 1987-12-21 FR FR8718129A patent/FR2625031A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2394417A1 (en) * | 1977-06-13 | 1979-01-12 | Ouriachi Mabrouk | Automatic switch for car lamps - has photocell and amplifier timer control putting out of action hand operated switches |
US4558260A (en) * | 1983-05-04 | 1985-12-10 | Nippondenso Co., Ltd. | Head lamps control system for use on vehicles |
JPS6078837A (en) * | 1983-10-07 | 1985-05-04 | Nippon Denso Co Ltd | Vehicle's lighting lamp controller |
US4599544A (en) * | 1984-05-24 | 1986-07-08 | General Motors Corporation | Vehicle headlamp beam control |
FR2577742A1 (en) * | 1985-02-20 | 1986-08-22 | Laloum James | Control device for automatic switching on and off of the lights of a vehicle as a function of the daylight |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN, vol. 9, no. 220 (E-341)[1943], 6 septembre 1985; & JP-A-60 78 837 (NIPPON DENSO K.K.) 04-05-1985 * |
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