FR2736881A1 - DEVICE AND CIRCUIT FOR CORRECTING THE ORIENTATION OF AT LEAST ONE PROJECTOR BASED ON VARIATIONS IN THE PLATE OF A VEHICLE - Google Patents
DEVICE AND CIRCUIT FOR CORRECTING THE ORIENTATION OF AT LEAST ONE PROJECTOR BASED ON VARIATIONS IN THE PLATE OF A VEHICLE Download PDFInfo
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- FR2736881A1 FR2736881A1 FR9508874A FR9508874A FR2736881A1 FR 2736881 A1 FR2736881 A1 FR 2736881A1 FR 9508874 A FR9508874 A FR 9508874A FR 9508874 A FR9508874 A FR 9508874A FR 2736881 A1 FR2736881 A1 FR 2736881A1
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- time constant
- signal
- circuit
- vehicle
- attitude signal
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Classifications
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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
- 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
- B60Q1/06—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 adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—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 adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/10—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 adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution
- B60Q1/115—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 adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution by electric means
-
- 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
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/11—Linear movements of the vehicle
- B60Q2300/116—Vehicle at a stop
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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
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/13—Attitude of the vehicle body
- B60Q2300/132—Pitch
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Un dispositif de correction de l'orientation d'au moins un projecteur d'un véhicule notamment automobile en fonction des variations d'assiette de celui-ci dues à des variations de charge comprend des moyens capteurs (1a, 1b, 2) délivrant un signal d'assiette instantanée, des moyens de filtrage à constante de temps longue (4) délivrant un signal d'assiette filtré, et des moyens (9) d'établissement de la correction d'orientation à effectuer en fonction de la valeur du signal d'assiette filtré qui commandent au moins un actionneur (10a, 10b) associé à un projecteur. Selon l'invention, le dispositif comprend en outre des moyens détecteurs (3, 5; 6; 7) pour déterminer l'état d'immobilité ou de mobilité du véhicule en fonction du contenu du signal d'assiette instantanée, et des moyens de commutation (8) pour appliquer aux moyens d'établissement de correction (9) un signal d'assiette filtré avec une constante de temps de filtrage plus courte que ladite longue constante de temps lorsque l'immobilité du véhicule est détectée.A device for correcting the orientation of at least one headlight of a vehicle, in particular a motor vehicle as a function of the variations in its attitude due to variations in load, comprises sensor means (1a, 1b, 2) delivering a instantaneous attitude signal, long time constant filtering means (4) delivering a filtered attitude signal, and means (9) for establishing the orientation correction to be made as a function of the value of the signal filtered plate which control at least one actuator (10a, 10b) associated with a projector. According to the invention, the device further comprises detection means (3, 5; 6; 7) for determining the state of immobility or of mobility of the vehicle as a function of the content of the instantaneous attitude signal, and means of switching (8) to apply to the correction setting means (9) a filtered attitude signal with a filtering time constant shorter than said long time constant when the immobility of the vehicle is detected.
Description
i La présente invention concerne d'une façon générale les dispositifs deThe present invention relates generally to
correction automatique de l'orientation en site du ou des projecteurs de véhicules, notamment véhicules automatic correction of the orientation of the vehicle headlamp (s), in particular vehicles
automobiles, en fonction de l'assiette du véhicule. according to the attitude of the vehicle.
Il existe dans l'état de la technique de nombreux dispositifs de correction. Ils comprennent en général deux capteurs permettant, par détermination de la distance entre la caisse du véhicule et la route dans les régions avant et arrière de celui-ci, d'établir un signal d'assiette, et des moyens de commande qui, en fonction de la valeur de ce signal, corrigent l'orientation des projecteurs par l'intermédiaire de motoréducteurs ou analogues associés aux projecteurs. Il existe par ailleurs deux grands types de corrections. La première, dite correction statique, est destinée à régler les projecteurs en fonction de la charge du véhicule. Cette correction automatique se substitue à la correction manuelle par le conducteur dans les véhicules There are many correction devices in the state of the art. They generally comprise two sensors making it possible, by determining the distance between the vehicle body and the road in the front and rear regions thereof, to establish a trim signal, and control means which, depending on the the value of this signal, correct the orientation of the projectors via geared motors or the like associated with the projectors. There are two main types of corrections. The first, called static correction, is intended to adjust the headlamps according to the load of the vehicle. This automatic correction replaces the manual correction by the driver in vehicles
haut de gamme.top of the line.
La correction dite dynamique a quant à elle pour objet de corriger les variations d'assiette du véhicule en circulation, principalement lors de freinages, The so-called dynamic correction is intended to correct the attitude variations of the vehicle in circulation, mainly during braking,
d'accélérations, de virages etc.... accelerations, turns, etc.
On comprend qu'une correction statique doit s'affranchir des variations d'assiette transitoires, perturbatrices, qui ont lieu lors des freinages et accélérations, dans les virages ou encore lorsque l'état de It is understood that a static correction must overcome the transient attitude changes, disruptive, which occur during braking and acceleration, cornering or when the state of
la route est irrégulier (nids de poule, dos d'âne, etc...). the road is irregular (potholes, donkeys, etc ...).
Pour éliminer ces variations transitoires, il est connu de filtrer le signal d'assiette avec une constante de temps assez longue, et normalement plus longue que le plus long To eliminate these transient variations, it is known to filter the attitude signal with a fairly long time constant, and normally longer than the longest one.
des phénomènes décrits ci-dessus. phenomena described above.
Dans la pratique, des situations comme des accélérations prolongées, des virages autour de rond$ points, etc..., conduisent à recourir à une constant de In practice, situations such as prolonged acceleration, rounding around $ points, etc., lead to a constant use of
temps de l'ordre de la minute.time of the order of a minute.
On comprend que cette constante de temps nuit à l'efficacité de la correction automatique statique notamment It is understood that this time constant impedes the effectiveness of the static automatic correction in particular
lors du démarrage du véhicule en cas de charge importante. when starting the vehicle in case of heavy load.
Ainsi, dans le cas o plusieurs personnes montent dans le véhicule et o celui-ci démarre rapidement, il s'écoule pas loin d'une minute avant que l'adaptation de l'orientation des projecteurs à la nouvelle assiette du véhicule soit effectuée, ce qui est bien entendu Thus, in the case where several people get into the vehicle and o it starts quickly, it takes a long time to pass by one minute before the adaptation of the orientation of the headlights to the new attitude of the vehicle is carried out, which is of course
indésirable.undesirable.
La présente invention vise à pallier cet inconvénient The present invention aims to overcome this drawback
d'une manière extrêmement simple et économique. in an extremely simple and economical way.
Elle propose à cet effet selon un premier aspect un dispositif de correction de l'orientation d'au moins un projecteur d'un véhicule notamment automobile en fonction des variations d'assiette de celui-ci due à des variations de charge, ce dispositif comprenant des moyens capteurs aptes à délivrer un signal d'assiette instantanée du véhicule, des moyens de filtrage à constante de temps longue apte à délivrer un signal d'assiette filtré, des moyens d'établissement de la correction d'orientation à effectuer en fonction de la valeur du signal d'assiette filtré, et au moins un actionneur commandé par les moyens d'établissement de correction et associé à un projecteur du véhicule, dispositif caractérisé en ce qu'il comprend en outre des moyens détecteurs pour déterminer l'état d'immobilité ou de mobilité du véhicule en fonction du contenu du signal d'assiette instantanée, et des moyens de commutation pour appliquer aux moyens d'établissement de correction un signal d'assiette filtré avec une constante de temps de filtrage plus courte que ladite longue constante de temps lorsque To this end, it proposes, according to a first aspect, a device for correcting the orientation of at least one headlamp of a vehicle, in particular a vehicle, as a function of the variations of attitude thereof due to load variations, this device comprising sensor means capable of delivering an instantaneous vehicle attitude signal, long time constant filtering means capable of delivering a filtered attitude signal, means for establishing the orientation correction to be performed as a function of the value of the filtered attitude signal, and at least one actuator controlled by the correction setting means and associated with a vehicle headlight, characterized in that it further comprises detector means for determining the state of immobility or mobility of the vehicle according to the contents of the instantaneous attitude signal, and switching means for applying to the correction establishment means a sign al of plate filtered with a filter time constant shorter than said long time constant when
l'immobilité du véhicule est détectée. the immobility of the vehicle is detected.
L'invention propose également un circuit de traitement de signal d'assiette destiné à être utilisé dans un dispositif de correction de l'orientation d'au moins un Q projecteur d'un véhicule notamment automobile en fonction des variations d'assiette de celui-ci dues à des variations de charge, ce circuit comprenant des moyens de filtrage à constante de temps longue apte à recevoir un signal d'assiette instantanée et à délivrer un signal d'assiette filtré, et des moyens d'établissement de la correction d'orientation à effectuer en fonction de la valeur du signal d'assiette filtré, circuit caractérisé en ce qu'il comprend en outre des moyens détecteurs pour déterminer l'état d'immobilité ou de mobilité du véhicule en fonction du contenu du signal d'assiette instantanée, et des moyens de commutation pour appliquer aux moyens d'établissement de correction un signal d'assiette filtré avec une constante de temps de filtrage plus courte que ladite longue constante de The invention also proposes a pitch signal processing circuit intended to be used in a device for correcting the orientation of at least one headlamp of a vehicle, in particular a vehicle, as a function of the attitude variations of that vehicle. due to load variations, this circuit comprising long time constant filtering means adapted to receive an instantaneous attitude signal and to deliver a filtered attitude signal, and means for establishing the correction of orientation to be performed according to the value of the filtered attitude signal, circuit characterized in that it further comprises detecting means for determining the state of immobility or mobility of the vehicle according to the content of the attitude signal instantaneous, and switching means for applying to the correction setting means a filtered attitude signal with a filter time constant shorter than said long constant of
temps lorsque l'immobilité du véhicule est détectée. when the immobility of the vehicle is detected.
Des aspects préférés, mais non limitatif, du dispositif et du circuit selon l'invention sont les suivants: - la constante de temps longue est de l'ordre de plusieurs dizaines de secondes, tandis que la constante de Preferred but not limiting aspects of the device and the circuit according to the invention are the following: the long time constant is of the order of several tens of seconds, while the constant of
temps plus courte est de l'ordre de quelques secondes. shorter time is of the order of a few seconds.
- les moyens détecteurs comprennent un circuit pour isoler des composantes à haute fréquence du signal d'assiette instantanée, un circuit pour établir un signal représentatif de l'amplitude lesdites composantes à haute fréquence et un comparateur à seuil recevant en entrée ledit signal, et les moyens de commutation sont commandés par la the detector means comprise a circuit for isolating high frequency components of the instantaneous attitude signal, a circuit for establishing a signal representative of the amplitude of said high frequency components and a threshold comparator receiving said signal at the input, and switching means are controlled by the
sortie dudit comparateur à seuil.output of said threshold comparator.
- le circuit pour isoler des composantes à haute fréquence du signal d'assiette instantanée comprend un filtre à constante de temps courte et un circuit différentiateur recevant sur une première entrée le signal d'assiette instantanée et sur une seconde entrée le signal the circuit for isolating high frequency components of the instantaneous attitude signal comprises a short time constant filter and a differentiating circuit receiving on a first input the instantaneous attitude signal and on a second input the signal
d'assiette filtré avec la constante de temps courte. Filtered plate with the short time constant.
- ledit signal d'assiette filtré avec une constante de temps de filtrage plus courte que ladite longue constante est prélevé sur la sortie du filtre à constante de temps courte. D'autres aspects, buts et avantages de la présente said filtered attitude signal with a filter time constant shorter than said long constant is taken from the output of the short time constant filter. Other aspects, purposes and advantages of this
invention apparaîtront mieux à la lecture de la description invention will appear better on reading the description
détaillée suivante d'une forme de réalisation préférée de celle-ci, donnée à titre d'exemple non limitatif et faite en référence au dessin annexé, sur lequel la figure unique est un schéma synoptique d'un dispositif de correction following detailed description of a preferred embodiment thereof, given by way of nonlimiting example and with reference to the appended drawing, in which the single figure is a block diagram of a correction device
automatique statique selon l'invention. automatic static according to the invention.
En référence maintenant au dessin, on a représenté un dispositif qui comprend tout d'abord deux capteurs la, lb associés par exemple aux essieux avant et arrière du véhicule, par exemple des capteurs de longueurs, permettant par différence de déterminer l'assiette du véhicule, de Referring now to the drawing, there is shown a device which comprises first two sensors 1a, 1b associated for example with the front and rear axles of the vehicle, for example length sensors, allowing by difference to determine the attitude of the vehicle , from
façon connue en soi.known way in itself.
Ce signal d'assiette est élaboré dans un circuit de calcul d'assiette 2 qui reçoit en entrée les signaux des This attitude signal is developed in a trim calculation circuit 2 which receives as input the signals of the
deux capteurs.two sensors.
Le signal d'assiette est appliqué à l'entrée d'un premier filtre passebas 3 dont la constante de temps est courte, typiquement de quelques secondes. Le signal filtré en sortie du filtre 3 est appliqué à une première entrée "+" d'un circuit 5 de différentiation et d'établissement de valeur absolue, dont l'autre entrée #-" reçoit directement The attitude signal is applied to the input of a first low-pass filter 3 whose time constant is short, typically a few seconds. The filtered signal at the output of the filter 3 is applied to a first "+" input of a differentiation and absolute value determination circuit, the other input # - "of which receives directly
le signal d'assiette non filtré issu du circuit 2. the unfiltered pitch signal from the circuit 2.
La différence entre le signal non filtré et le signal filtré est constitué par toutes les composantes de signal dont la vitesse d'évolution est supérieure à une valeur donnée, cette différence, convertie en valeur absolue, étant fournie en sortie du circuit 5 et étant représentative du The difference between the unfiltered signal and the filtered signal is constituted by all the signal components whose rate of change is greater than a given value, this difference, converted into absolute value, being supplied at the output of circuit 5 and being representative of
"bruit" du signal d'assiette instantané. "noise" of the instantaneous attitude signal.
Ainsi l'on comprend que, lorsque le véhicule est à l'arrêt, avec une charge constante, le signal en sortie du circuit 5 est nul ou pratiquement nul, dans la mesure o le signal d'assiette ne comporte aucune composante à haute 0o fréquence. En revanche, lorsque le véhicule roule, il se produit à l'occasion des irrégularités de la route, des freinages, des accélérations, des virages, etc.... des variations rapides du signal d'assiette instantanée, qui composent le signal en Thus it is understood that, when the vehicle is stationary, with a constant load, the signal at the output of the circuit 5 is zero or practically zero, since the attitude signal has no high-level components. frequency. On the other hand, when the vehicle is moving, occasional irregularities in the road, braking, accelerations, turns, etc., occur during rapid variations of the instantaneous attitude signal, which make up the signal.
sortie du circuit 5.exit of the circuit 5.
Ce signal est à nouveau filtré par un circuit de filtrage 6, ayant de préférence sensiblement la même constante de temps que celle du filtre 3, pour ainsi établir un signal de bruit moyen, qui est nul ou très faible lorsque le véhicule ne roule pas et qui est nettement plus élevé, This signal is again filtered by a filter circuit 6, preferably having substantially the same time constant as that of the filter 3, so as to establish a mean noise signal, which is zero or very low when the vehicle is not rolling and which is significantly higher,
pour les raisons précitées, lorsque le véhicule roule. for the aforementioned reasons, when the vehicle is moving.
Le circuit 7 est un comparateur à seuil qui reçoit le signal de sortie du filtre 6 et dont la sortie commande un The circuit 7 is a threshold comparator which receives the output signal of the filter 6 and whose output controls a
interrupteur commandé 8.controlled switch 8.
Cet interrupteur est ouvert lorsque le signal de bruit moyen est supérieur au seuil, tandis qu'il est fermé lorsque This switch is open when the average noise signal is above the threshold, while it is closed when
le signal de bruit moyen est inférieur au seuil. the average noise signal is below the threshold.
Cet interrupteur 8 est branché entre la sortie du circuit de filtrage 3 et une entrée d'un circuit de correction principal 4 qui reçoit également du circuit de calcul 2, sur une autre entrée le signal d'assiette instantané. Le circuit 4 comprend principalement un filtre à constante de temps longue, typiquement de l'ordre de plusieurs dizaines de secondes (éventuellement jusqu'à la minute), qui élabore un signal d'assiette filtré qui est appliqué par sa sortie à l'entrée d'un circuit 9 de calcul This switch 8 is connected between the output of the filter circuit 3 and an input of a main correction circuit 4 which also receives from the calculation circuit 2, on another input the instantaneous attitude signal. The circuit 4 mainly comprises a filter with a long time constant, typically of the order of several tens of seconds (possibly up to the minute), which produces a filtered attitude signal which is applied by its output to the input of a calculation circuit 9
de la correction à apporter à l'orientation des projecteurs. the correction to be made to the orientation of the projectors.
Ce circuit 9 applique les signaux appropriés à deux actionneurs 10a, 0lb, par exemple des moto-réducteurs, This circuit 9 applies the appropriate signals to two actuators 10a, 0lb, for example geared motors,
associés aux projecteurs gauche et droit du véhicule. associated with the left and right headlights of the vehicle.
Le circuit décrit ci-dessus fonctionne comme suit: lorsque le véhicule roule, un signal de bruit moyen important est présent dans le signal d'assiette, si bien que O le comparateur à seuil 7 maintient l'interrupteur commandé 8 à l'état ouvert, et le signal d'assiette instantané est fourni par le circuit de calcul 2 au circuit 4 pour effectuer une correction d'assiette statique avec constante de temps qui est typiquement de l'ordre de plusieurs The circuit described above operates as follows: when the vehicle is traveling, a significant average noise signal is present in the attitude signal, so that the threshold comparator 7 holds the controlled switch 8 in the open state , and the instantaneous attitude signal is provided by the calculation circuit 2 to the circuit 4 to effect a static attitude correction with a time constant which is typically of the order of several
dizaines de secondes ou de la minute. dozens of seconds or minute.
Lorsque le véhicule s'arrête, le bruit du signal d'assiette disparaît et le comparateur à seuil 7 provoque la fermeture de l'interrupteur 8. Dans ce cas, la valeur d'assiette en sortie du circuit 4 est forcée sur la valeur appliquée à ce circuit via l'interrupteur 8, qui est une valeur d'assiette fitrée avec courte constante de temps, pour ainsi régler rapidement l'orientation des projecteurs sur cette valeur d'assiette forcée, dont les variations d'assiette sont provoquées seulement par une variation de la When the vehicle stops, the sound of the attitude signal disappears and the threshold comparator 7 causes the closing of the switch 8. In this case, the trim value at the output of the circuit 4 is forced on the applied value. to this circuit via the switch 8, which is a trimmed trim value with a short time constant, to thereby quickly adjust the orientation of the headlamps to this forced pitch value, whose attitude variations are caused only by a variation of the
charge du véhicule.vehicle load.
Lorsque le véhicule repart, les projecteurs sont donc correctement réglés. Le bruit réapparaît alors dans le signal d'assiette, et le comparateur à seuil ouvre l'interrupteur 8 pour effectuer à nouveau la correction sur la base du signal d'assiette instantané fourni par le When the vehicle starts again, the headlamps are correctly adjusted. The noise then reappears in the attitude signal, and the threshold comparator opens the switch 8 to perform the correction again based on the instantaneous attitude signal provided by the
circuit 2, avec longue constante de temps. circuit 2, with long time constant.
On observera que le signal de bruit moyen en sortie du circuit 6 est également appliqué au circuit 4. Ce signal peut en effet être exploité par le circuit 4 dans le cas o celui-ci assure un traitement plus sophistiqué du signal It will be observed that the average noise signal at the output of the circuit 6 is also applied to the circuit 4. This signal can indeed be used by the circuit 4 in the case where it provides a more sophisticated signal processing
d'assiette instantané.instant plate.
Ainsi, grâce à ce circuit, le véhicule repart avec une correction d'assiette correcte, et la correction statique à Thus, thanks to this circuit, the vehicle leaves with a correct correction of attitude, and the static correction to
l'aide du circuit 4 s'effectue ensuite normalement. circuit 4 is then used normally.
Les circuits représentés sur la figure peuvent être réalisés concrètement par différentes techniques, et en particulier par des circuits analogiques, par des circuits numériques en logique câblée ou encore par un microprocesseur associé à des mémoires et à des circuits d'entrée/sortie. Bien entendu, la présente invention n'est nullement limitée à la forme de réalisation décrite et représentée, mais l'homme de l'art saura y apporter toute variante ou modification conforme à son esprit. The circuits shown in the figure can be realized concretely by different techniques, and in particular by analog circuits, by digital circuits in hardwired logic or by a microprocessor associated with memories and input / output circuits. Of course, the present invention is not limited to the embodiment described and shown, but one skilled in the art will be able to make any variant or modification consistent with his spirit.
En particulier, elle s'applique non seulement aux véhicules automobiles, mais également aux deux-roues, etc... In particular, it applies not only to motor vehicles, but also to two-wheelers, etc.
C)C)
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9508874A FR2736881B1 (en) | 1995-07-21 | 1995-07-21 | DEVICE AND CIRCUIT FOR CORRECTING THE ORIENTATION OF AT LEAST ONE PROJECTOR AS A FUNCTION OF VARIATIONS IN THE BASE OF A VEHICLE |
| DE1996128405 DE19628405B4 (en) | 1995-07-21 | 1996-07-15 | Device and circuit for correcting the adjustment of a headlamp depending on the changes in inclination of the vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9508874A FR2736881B1 (en) | 1995-07-21 | 1995-07-21 | DEVICE AND CIRCUIT FOR CORRECTING THE ORIENTATION OF AT LEAST ONE PROJECTOR AS A FUNCTION OF VARIATIONS IN THE BASE OF A VEHICLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2736881A1 true FR2736881A1 (en) | 1997-01-24 |
| FR2736881B1 FR2736881B1 (en) | 1997-10-10 |
Family
ID=9481241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9508874A Expired - Fee Related FR2736881B1 (en) | 1995-07-21 | 1995-07-21 | DEVICE AND CIRCUIT FOR CORRECTING THE ORIENTATION OF AT LEAST ONE PROJECTOR AS A FUNCTION OF VARIATIONS IN THE BASE OF A VEHICLE |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19628405B4 (en) |
| FR (1) | FR2736881B1 (en) |
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| EP1527950A1 (en) * | 2003-10-31 | 2005-05-04 | Valeo Vision | Method for controlling the pitch angle of a headlight |
| FR2861664A1 (en) * | 2003-10-31 | 2005-05-06 | Valeo Vision | Headlight elevation angle correcting method for motor vehicle, involves filtering signal representative of attitude of vehicle based on filter coefficient, and correcting elevation angle of headlight based on filtered signal |
| FR2861663A1 (en) * | 2003-10-31 | 2005-05-06 | Valeo Vision | Headlight elevation angle correcting method for motor vehicle, involves filtering signal representative of attitude of vehicle based on filter coefficient, and correcting elevation angle of headlight based on filtered signal |
| FR2866848A1 (en) * | 2004-03-01 | 2005-09-02 | Valeo Vision | Automatic headlight elevation angle correction device control process for motor vehicle, involves controlling device in static mode when headlight functions in day time, and controlling in dynamic mode when vehicle is in stop phase |
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| FR2760069B1 (en) * | 1997-02-21 | 1999-05-14 | Valeo Vision | LIGHTING SYSTEM WITH NEAR BEAM PROJECTORS OF CODE TYPE AND COMPLEMENTARY TURNING BEAM |
| JP3128618B2 (en) * | 1997-05-26 | 2001-01-29 | 株式会社小糸製作所 | Illumination direction control device for vehicle lighting |
| DE19737710B4 (en) * | 1997-08-29 | 2007-01-11 | Automotive Lighting Reutlingen Gmbh | Method for static automatic headlamp leveling for motor vehicles |
| DE19738851A1 (en) * | 1997-09-05 | 1999-03-11 | Bosch Gmbh Robert | Control device for operating and controlling gas discharge lamps in headlights |
| DE19824862A1 (en) * | 1998-06-04 | 1999-12-09 | Hella Kg Hueck & Co | Process for regulating the headlight range of vehicle headlights |
| JP3847972B2 (en) * | 1998-09-18 | 2006-11-22 | 株式会社小糸製作所 | Auto-leveling device for automotive headlamps |
| DE19843388A1 (en) * | 1998-09-22 | 2000-03-23 | Hella Kg Hueck & Co | Process for regulating the headlight range of vehicle headlights |
| JP3957422B2 (en) * | 1999-02-10 | 2007-08-15 | スタンレー電気株式会社 | Optical axis adjustment device for vehicle headlamp |
| DE10355757B4 (en) | 2003-11-28 | 2018-04-05 | Volkswagen Ag | Headlight system for a motor vehicle |
| DE102011106178A1 (en) * | 2011-07-01 | 2013-01-03 | Daimler Ag | A position adjustable vehicle component and method for aligning the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355539A2 (en) * | 1988-08-18 | 1990-02-28 | Hella KG Hueck & Co. | Device and method for controlling the lighting distance or the level of a vehicle |
| JPH06136032A (en) * | 1991-09-11 | 1994-05-17 | Tonen Corp | Production of propylene-ethylene block copolymer |
| EP0600798A1 (en) * | 1992-12-03 | 1994-06-08 | Valeo Vision | Automatic headlight adjustment correction by tilting, according to the position of the vehicle body relative to the ground |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4024916A1 (en) * | 1990-08-06 | 1992-02-13 | Hella Kg Hueck & Co | METHOD AND DEVICE FOR REGULATING THE HEADLIGHT OF A MOTOR VEHICLE |
| DE4024913A1 (en) * | 1990-08-06 | 1992-02-13 | Hella Kg Hueck & Co | METHOD AND DEVICE FOR REGULATING THE HEADLIGHT OF A MOTOR VEHICLE |
| DE4024912A1 (en) * | 1990-08-06 | 1992-02-13 | Hella Kg Hueck & Co | DEVICE FOR REGULATING THE HEADLIGHT OF A MOTOR VEHICLE |
| DE4024915A1 (en) * | 1990-08-06 | 1992-02-13 | Hella Kg Hueck & Co | METHOD AND DEVICE FOR REGULATING THE HEADLIGHT OF A MOTOR VEHICLE |
| DE4202908A1 (en) * | 1992-02-01 | 1993-08-05 | Hella Kg Hueck & Co | METHOD FOR REGULATING THE HEADLIGHT OF MOTOR VEHICLES AND HEADLIGHT REGULATOR |
-
1995
- 1995-07-21 FR FR9508874A patent/FR2736881B1/en not_active Expired - Fee Related
-
1996
- 1996-07-15 DE DE1996128405 patent/DE19628405B4/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355539A2 (en) * | 1988-08-18 | 1990-02-28 | Hella KG Hueck & Co. | Device and method for controlling the lighting distance or the level of a vehicle |
| JPH06136032A (en) * | 1991-09-11 | 1994-05-17 | Tonen Corp | Production of propylene-ethylene block copolymer |
| EP0600798A1 (en) * | 1992-12-03 | 1994-06-08 | Valeo Vision | Automatic headlight adjustment correction by tilting, according to the position of the vehicle body relative to the ground |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 10, no. 191 (M - 495)<2247> 4 July 1986 (1986-07-04) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1527950A1 (en) * | 2003-10-31 | 2005-05-04 | Valeo Vision | Method for controlling the pitch angle of a headlight |
| FR2861664A1 (en) * | 2003-10-31 | 2005-05-06 | Valeo Vision | Headlight elevation angle correcting method for motor vehicle, involves filtering signal representative of attitude of vehicle based on filter coefficient, and correcting elevation angle of headlight based on filtered signal |
| FR2861663A1 (en) * | 2003-10-31 | 2005-05-06 | Valeo Vision | Headlight elevation angle correcting method for motor vehicle, involves filtering signal representative of attitude of vehicle based on filter coefficient, and correcting elevation angle of headlight based on filtered signal |
| FR2866848A1 (en) * | 2004-03-01 | 2005-09-02 | Valeo Vision | Automatic headlight elevation angle correction device control process for motor vehicle, involves controlling device in static mode when headlight functions in day time, and controlling in dynamic mode when vehicle is in stop phase |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19628405A1 (en) | 1997-01-23 |
| FR2736881B1 (en) | 1997-10-10 |
| DE19628405B4 (en) | 2004-03-04 |
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| ST | Notification of lapse |
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