FR2844759A1 - Beam direction control for motorbike headlamp, includes gyro meter detectors sensing tilt of bike and adjusting headlamp alignment - Google Patents

Beam direction control for motorbike headlamp, includes gyro meter detectors sensing tilt of bike and adjusting headlamp alignment Download PDF

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Publication number
FR2844759A1
FR2844759A1 FR0211687A FR0211687A FR2844759A1 FR 2844759 A1 FR2844759 A1 FR 2844759A1 FR 0211687 A FR0211687 A FR 0211687A FR 0211687 A FR0211687 A FR 0211687A FR 2844759 A1 FR2844759 A1 FR 2844759A1
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FR
France
Prior art keywords
motorcycle
headlight
motorbike
control device
headlamp
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Granted
Application number
FR0211687A
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French (fr)
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FR2844759B1 (en
Inventor
Arnaud Decharnes
Stephane Duceux
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ECOLE NATIONALE D INGENIEURS D
Ecole Nationale dIngenieurs de Tarbes ENIT
Original Assignee
ECOLE NATIONALE D INGENIEURS D
Ecole Nationale dIngenieurs de Tarbes ENIT
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Priority to FR0211687A priority Critical patent/FR2844759B1/en
Publication of FR2844759A1 publication Critical patent/FR2844759A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—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
    • 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
    • B60Q1/12—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 steering position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/02—Headlights
    • B62J6/022—Headlights specially adapted for motorcycles or the like
    • B62J6/023—Headlights specially adapted for motorcycles or the like responsive to the lean angle of the cycle, e.g. changing intensity or switching sub-lights when cornering
    • 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
    • B60Q2300/112—Vehicle speed
    • 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
    • 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
    • B60Q2300/134—Yaw
    • 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
    • B60Q2300/136—Roll

Landscapes

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

Abstract

The motorbike headlight control system provides adjustment for the trim, the roll and the upward tilt of the headlight as the motorbike travels along. This is achieved in response to gyro meter sensors detecting the inclination of the bike. The control system for the headlight of a motorbike (2) includes a mechanism (3) which is able to adjust the trim, the roll and the upward tilt of the headlight as the motorbike travels along. The system includes a detector (5) which determines the inclination of the bike in X (forward) and Y (lateral) directions using gyroscopes with sensors. This also includes an accelerometer determining the vertical acceleration of the motorbike. A control (4) uses the information derived from the detector (5) in order to act on the mechanism (3) to adjust the angle of the headlamp according to the driving conditions.

Description

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Le secteur technique de la présente invention est celui des phares de motos, et plus particulièrement du phare avant destiné à l'éclairage de la route.  The technical sector of the present invention is that of motorcycle headlights, and more particularly of the headlight intended for lighting the road.

Les phares actuellement utilisés sur les motos sont fixes, ce qui engendre plusieurs inconvénients. Les premiers inconvénients constatés sont liés au confort de conduite, lors d'un freinage appuyé le faisceau plonge vers l'avant, ce qui diminue fortement sa portée. De même, lors d'une prise de virage, la largeur du faisceau lumineux se réduit à cause de son inclinaison (liée à la moto). De plus, l'orientation du faisceau (tangentielle à la trajectoire) pénalise la visibilité à l'intérieur du virage. Le deuxième type de défaut constaté a trait à la sécurité. En effet, lorsqu'une moto suit une voiture, le mouvement du faisceau dû aux accélérations de la moto éblouit l'automobiliste. On retrouve cet effet d'éblouissement lorsque la moto croise une voiture dans un virage, car la forme oblongue du faisceau combinée à l'inclinaison de la moto gène l'automobiliste qui reçoit l'éclairage directement dans les yeux. Outre le confort et la sécurité des autres conducteurs, il faut également considérer l'aspect sécurité personnelle du motard. Dans un virage, il est nécessaire de voir loin pour pouvoir réagir à temps en cas d'obstacle ou si le virage se referme brusquement. Malheureusement, un phare éclaire devant lui et sur les motos actuelles, l'éclairage au loin et dans la courbe est insuffisant. Ceci réduit considérablement le champ de vision du conducteur et l'empêche d'anticiper d'éventuels obstacles ou difficultés liées à la géométrie de la route.  The headlights currently used on motorcycles are fixed, which creates several disadvantages. The first drawbacks noted are linked to driving comfort, when the brakes are pressed the beam dips forward, which greatly reduces its range. Similarly, when cornering, the width of the light beam is reduced because of its inclination (linked to the motorcycle). In addition, the orientation of the beam (tangential to the trajectory) penalizes visibility inside the turn. The second type of fault found relates to safety. Indeed, when a motorcycle follows a car, the movement of the beam due to the accelerations of the motorcycle dazzles the motorist. We find this dazzling effect when the motorcycle crosses a car in a bend, because the oblong shape of the beam combined with the inclination of the motorcycle annoys the motorist who receives the lighting directly in the eyes. In addition to the comfort and safety of other riders, the personal safety aspect of the rider must also be considered. In a bend, it is necessary to see far to be able to react in time in the event of an obstacle or if the bend suddenly closes. Unfortunately, a lighthouse lights up in front of him and on current motorcycles, the lighting in the distance and in the curve is insufficient. This considerably reduces the driver's field of vision and prevents him from anticipating any obstacles or difficulties related to the geometry of the road.

Le but de la présente invention est de fournir un dispositif remédiant à ces défauts tout en restant intégrable sur un véhicule, tels une moto, un scooter des mers, une moto-neige ou encore un hors-bord. Ce dispositif permet non seulement de corriger les inclinaisons du véhicule mais aussi, lorsqu'il aborde un virage, d'anticiper la trajectoire de celui-ci c'est à dire déterminer et éclairer l'endroit où se situera le véhicule  The object of the present invention is to provide a device remedying these defects while remaining integrable on a vehicle, such as a motorcycle, a jet ski, a snowmobile or even a speedboat. This device makes it possible not only to correct the inclinations of the vehicle but also, when it approaches a turn, to anticipate the trajectory of it, that is to say to determine and illuminate the place where the vehicle will be located.

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n secondes plus tard en appliquant une différence d'angle, entre la tangente à la trajectoire de la moto et la direction éclairée par le phare, nommée angle de lacets.  n seconds later by applying a difference in angle, between the tangent to the path of the motorcycle and the direction illuminated by the headlight, called angle of laces.

On connaît déjà pour certaines voitures, notamment sur les Citroën DS, un système reliant les phares de la voiture aux commandes de direction. Ce principe n'est pas applicable aux motos, car la trajectoire suivie n'est pas directement liée à l'orientation de la roue avant, mais à l'inclinaison de la moto et sa vitesse.  We already know for some cars, especially on Citroën DS, a system connecting the headlights of the car to the steering controls. This principle is not applicable to motorcycles, since the trajectory followed is not directly linked to the orientation of the front wheel, but to the inclination of the motorcycle and its speed.

Il existe également pour la correction d'assiette un système développé par BMW et commercialisé sous le nom de "Telelever" qui maintient la moto horizontale lors des freinages en agissant sur la fourche de celle-ci.  There is also for the attitude correction a system developed by BMW and marketed under the name of "Telelever" which keeps the motorbike horizontal during braking by acting on its fork.

Une technique utilisée pour l'anticipation de trajectoire est de coupler les commandes de phares à un système de positionnement par satellite, du type GPS, mais ce système est très onéreux et trop encombrant pour être intégré sur une moto.  A technique used for trajectory anticipation is to couple the headlight controls to a satellite positioning system, of the GPS type, but this system is very expensive and too bulky to be integrated on a motorcycle.

L'invention a donc pour objet un dispositif de commande d'éclairage de moto, caractérisé en ce qu'il comprend des moyens permettant de modifier les angles d'assiette, de roulis et de lacets du phare, lors du déplacement de la moto.  The invention therefore relates to a motorcycle lighting control device, characterized in that it comprises means making it possible to modify the angles of attitude, roll and laces of the headlight, when the motorcycle is moving.

Selon une caractéristique de l'invention, le dispositif comprend au moins un accéléromètre permettant de connaître l'accélération verticale de la moto.  According to a characteristic of the invention, the device comprises at least one accelerometer making it possible to know the vertical acceleration of the motorcycle.

Selon une autre caractéristique de l'invention, le dispositif comprend des moyens permettant de déterminer l'inclinaison de la moto suivant les axes x, y et/ou z, ces moyens pouvant être des gyroscopes.  According to another characteristic of the invention, the device comprises means making it possible to determine the inclination of the motorcycle along the x, y and / or z axes, these means possibly being gyroscopes.

Selon encore une autre caractéristique de l'invention, le dispositif comprend un moyen de commande agissant sur le mécanisme d'orientation du phare de manière à piloter les angles d'assiette, de roulis et de lacets du phare, lors de l'inclinaison de la moto.  According to yet another characteristic of the invention, the device comprises a control means acting on the orientation mechanism of the headlight so as to control the angles of attitude, roll and laces of the headlight, during the inclination of the motorbike.

Selon une autre caractéristique de l'invention, le dispositif comprend des moyens de calculs permettant de déterminer la trajectoire de la moto en fonction de son  According to another characteristic of the invention, the device comprises calculation means making it possible to determine the trajectory of the motorcycle as a function of its

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inclinaison et de sa vitesse.  tilt and its speed.

Selon une autre caractéristique de l'invention, le moyen de commande agit sur le mécanisme d'orientation du phare de manière à orienter l'éclairage de la moto en direction de la trajectoire calculée.  According to another characteristic of the invention, the control means acts on the headlight orientation mechanism so as to orient the lighting of the motorcycle in the direction of the calculated path.

Une application de l'invention est celle aux véhicules dont la conduite et/ou le comportement sont proche de ceux d'une moto en ce qu'ils sont susceptibles d'être soumis à une forte assiette et/ou un fort roulis lors de leur déplacement, ces véhicules pouvant être une moto-neige, un scooter des mers, ou encore un hors-bord
Un tout premier avantage du dispositif selon l'invention réside dans le fait que, même lors d'une conduite de nuit, le conducteur de la moto aura une vision correcte de la route, y compris lorsque celle-ci est sinueuse. An application of the invention is that to vehicles whose driving and / or behavior is close to that of a motorcycle in that they are likely to be subjected to a strong attitude and / or a strong roll during their displacement, these vehicles can be a snowmobile, a jet ski, or even a speedboat
A very first advantage of the device according to the invention lies in the fact that, even when driving at night, the driver of the motorcycle will have a correct vision of the road, including when it is curvy.

Un autre avantage réside dans le fait que le phare éclaire uniquement la route et ne constitue plus une gêne pour les autres véhicules lors des accélérations ou des inclinaisons de la moto.  Another advantage lies in the fact that the headlight only lights the road and is no longer a nuisance for other vehicles when accelerating or tilting the motorcycle.

Un autre avantage réside dans le fait que ce système est peu onéreux, facilement réalisable et suffisamment compact pour s'intégrer dans le carénage des motos actuellement utilisées, ce qui permet de l'intégrer lors du montage en série des motos.  Another advantage lies in the fact that this system is inexpensive, easily achievable and sufficiently compact to be integrated in the fairing of the motorcycles currently in use, which makes it possible to integrate it during the series mounting of the motorcycles.

@ D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement de la description donnée ci-après à titre indicatif en relation avec des dessins dans lesquels : -La figure 1 est une vue de trois-quarts d'une moto équipée d'un dispositif de commande d'éclairage tel que décrit dans l'invention, -la figure 2 est une vue de trois quarts d'un phare et de son mécanisme d'orientation, tels que proposés par l'invention, -la figure 3 illustre un exemple de réalisaticn du boîtier de capteurs, et -les figures 4a à 4c sont des schémas illustrant un des  @ Other characteristics, details and advantages of the invention will emerge more clearly from the description given below by way of indication in relation to the drawings in which: FIG. 1 is a three-quarter view of a motorcycle equipped of a lighting control device as described in the invention, FIG. 2 is a three-quarter view of a lighthouse and of its orientation mechanism, as proposed by the invention, 3 illustrates an exemplary embodiment of the sensor housing, and FIGS. 4a to 4c are diagrams illustrating one of the

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principes de l'invention.  principles of the invention.

La figure 1 représente une moto 1 équipée d'un dispositif de commande d'éclairage selon l'invention. Un repère cartésien est associé à la moto 1, l'axe X représente l'axe principal de la moto et la direction dans laquelle cette moto roule et l'axe Y est l'axe de rotation des roues. L'angle d'inclinaison # de la moto 1 suivant l'axe X est appelé roulis et l'angle d'inclinaison suivant l'axe Y est appelé assiette. Le dispositif de commande d'éclairage comporte un phare 2, un mécanisme 3 d'orientation du phare, un moyen 4 de commande et un boîtier 5 de capteurs. Le boîtier 5 renferme plusieurs capteurs de type connu(représentés sur la figure 3) permettant de connaître l'assiette et le roulis de la moto 1. Ce boîtier est également relié au tachymètre 54 de la moto.  FIG. 1 represents a motorcycle 1 equipped with a lighting control device according to the invention. A Cartesian coordinate system is associated with motorcycle 1, the X axis represents the main axis of the motorcycle and the direction in which this motorcycle rides and the Y axis is the axis of rotation of the wheels. The angle of inclination # of motorcycle 1 along the X axis is called roll and the angle of inclination along the Y axis is called attitude. The lighting control device comprises a headlight 2, a headlight orientation mechanism 3, a control means 4 and a housing 5 of sensors. The housing 5 contains several sensors of known type (shown in FIG. 3) making it possible to know the attitude and the roll of the motorcycle 1. This housing is also connected to the tachometer 54 of the motorcycle.

La figure 2 illustre un exemple de réalisation du mécanisme 3 d'orientation du phare 2. Le mécanisme d'orientation est composé de trois moteurs 21,22 et 23, d'une couronne 24, d'un étrier 25 et d'un étrier 26.  FIG. 2 illustrates an exemplary embodiment of the headlight orientation mechanism 3 2. The orientation mechanism is composed of three motors 21, 22 and 23, a crown 24, a stirrup 25 and a stirrup 26.

La couronne 24 est solidaire du phare 2. Elle est entraînée en rotation autour de l'axe Z' par le moteur 23.  The crown 24 is integral with the headlight 2. It is rotated about the axis Z 'by the motor 23.

Le moteur 23 est fixé sur l'étrier 25. L'étrier 25 est entraîné en rotation autour de l'axe Y' par le moteur 22 fixé sur l'étrier 26 (partiellement représenté sur la figure). L'étrier 26 est lui-même entraîné en rotation autour de l'axe X' par le moteur 21 fixé sur le bâti de la moto 1. Ces trois moteurs permettent donc de diriger le phare 2 suivant trois axes perpendiculaires. On peut noter que lorsque les angles de roulis et d'assiette sont nuls, les axes X et X', Y et Y' et Z et Z' sont parallèles. De plus le principe de l'invention est justement de maintenir les axes Z et Z' constamment parallèles, quelles que soient les inclinaisons de la moto. The motor 23 is fixed on the stirrup 25. The stirrup 25 is rotated about the axis Y 'by the motor 22 fixed on the stirrup 26 (partially shown in the figure). The stirrup 26 is itself driven in rotation about the axis X 'by the motor 21 fixed on the frame of the motorcycle 1. These three motors therefore make it possible to direct the headlight 2 along three perpendicular axes. It can be noted that when the roll and trim angles are zero, the axes X and X ', Y and Y' and Z and Z 'are parallel. In addition, the principle of the invention is precisely to keep the axes Z and Z 'constantly parallel, whatever the inclinations of the motorcycle.

Cet exemple est donné à titre indicatif, d'autres réalisations sont envisageables, par exemple en conservant une source lumineuse fixe et en faisant pivoter la lentille  This example is given as an indication, other embodiments are possible, for example by keeping a fixed light source and by rotating the lens.

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du phare afin de diriger le faisceau lumineux.  of the lighthouse to direct the light beam.

La figure 3 illustre un exemple de réalisation du boîtier 5 de capteurs. Le boîtier 5 renferme deux capteurs d'inclinaison (51x et 51 y) mesurant l'inclinaison de la moto suivant les axes X et Y, un capteur d'accélération 52z, mesurant l'accélération suivant l'axe Z, une connexion au tachymètre 54 de la moto 1, et un convertisseur 50 qui centralise les données et les communiquent au moyen 4 de commande.  FIG. 3 illustrates an exemplary embodiment of the housing 5 of sensors. The housing 5 contains two inclination sensors (51x and 51 y) measuring the inclination of the motorcycle along the X and Y axes, an acceleration sensor 52z, measuring the acceleration along the Z axis, a connection to the tachometer 54 of motorcycle 1, and a converter 50 which centralizes the data and communicates it by means 4 of control.

La mesure de l'accélération suivant l'axe Z permet de vérifier que l'orientation du phare ne subit pas de décalage. En effet, lorsque ce capteur indique que la moto est parfaitement verticale, le moyen 4 de commande peut réinitialiser les consignes d'inclinaison. Measuring the acceleration along the Z axis makes it possible to verify that the orientation of the headlight is not offset. Indeed, when this sensor indicates that the motorcycle is perfectly vertical, the control means 4 can reset the tilt instructions.

Les figures 4a à 4c illustrent le principe de l'anticipation de trajectoire telle que réalisée par l'invention. A l'instant t, la moto 1 se trouve en un point A et se déplace suivant une courbe C. Pour des raisons de sécurité et de confort de conduite, le conducteur souhaite éclairer l'intérieur du virage, c'est à dire l'endroit B où sa moto roulera n secondes plus tard ( en prenant en compte le temps de réaction d'un conducteur moyen face à un obstacle imprévu, on peut considérer que n est compris entre 1,5 et 4 secondes).  Figures 4a to 4c illustrate the principle of trajectory anticipation as achieved by the invention. At time t, the motorcycle 1 is at a point A and moves along a curve C. For reasons of safety and driving comfort, the driver wishes to illuminate the interior of the turn, that is to say the 'place B where his motorcycle will ride n seconds later (taking into account the reaction time of an average driver when faced with an unforeseen obstacle, we can consider that n is between 1.5 and 4 seconds).

Pour calculer y, l'angle entre les axes X et X', il faut connaître le rayon R de la courbe C et la vitesse V de la moto 1, or R dépend de <p, l'angle de roulis, selon la formule issue de la dynamique moto: R=V2/ (g.tan#), g étant l'accélération de la pesanteur. To calculate y, the angle between the axes X and X ', you need to know the radius R of the curve C and the speed V of the motorcycle 1, or R depends on <p, the roll angle, according to the formula from motorcycle dynamics: R = V2 / (g.tan #), g being the acceleration of gravity.

Le calcul de y est un calcul géométrique que l'on effectue à l'aide du schéma 4c. Par les propriétés des triangles, on remarque que: Y=#/2.  The calculation of y is a geometric calculation which is carried out using diagram 4c. By the properties of the triangles, we notice that: Y = # / 2.

De plus,
X=n.V/R, Moreover,
X = nV / R,

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donc Y=n (g.tan#)/2V.  therefore Y = n (g.tan #) / 2V.

Ainsi, à partir des différentes données fournies par le boîtier 5 de capteurs et le tachymètre 54 de la moto 1, le moyen de commande 3 peut calculer et commander l'orientation à donner au phare 2 afin d'anticiper sa trajectoire.  Thus, from the different data provided by the sensor housing 5 and the tachometer 54 of the motorcycle 1, the control means 3 can calculate and control the orientation to be given to the headlight 2 in order to anticipate its trajectory.

L'anticipation à n secondes est réglable en fonction du conducteur. The anticipation at n seconds is adjustable depending on the driver.

De plus, le conducteur peut également régler le moyen 3 de commande afin de régler l'anticipation non pas sur un temps de n secondes mais sur une distance de m mètres. La consigne d'orientation du phare devient alors : Y= (g.tan#)/2m
Un tel dispositif est prévu pour être entièrement automatique. Le système 4 de commande gère seul les actions correctives à appliquer au phare 2. Cependant, il est prévu que ce système puisse être désactivé.In addition, the driver can also adjust the control means 3 in order to adjust the anticipation not over a time of n seconds but over a distance of m meters. The lighthouse orientation setpoint then becomes: Y = (g.tan #) / 2m
Such a device is intended to be fully automatic. The control system 4 alone manages the corrective actions to be applied to the headlight 2. However, it is intended that this system can be deactivated.

Claims (7)

REVENDICATIONS 1. Dispositif de commande d'éclairage de moto, caractérisé en ce qu'il comprend des moyens (3) permettant d'orienter les angles d'assiette, de roulis et de lacets du phare, lors du déplacement de la moto (1). 1. Motorcycle lighting control device, characterized in that it comprises means (3) making it possible to orient the angles of attitude, roll and laces of the headlight, when the motorcycle is moving (1) . 2. Dispositif de commande d'éclairage de moto selon la revendication 1 ou 2, caractérisé en ce qu'il comprend des moyens (5) permettant de connaître l'inclinaison de la moto suivant les axes X et Y, ces moyens pouvant être des gyroscopes.  2. motorcycle lighting control device according to claim 1 or 2, characterized in that it comprises means (5) making it possible to know the inclination of the motorcycle along the axes X and Y, these means possibly being gyroscopes. 3. Dispositif de commande d'éclairage de moto selon la revendication 2, caractérisé en ce qu'il comprend au moins un accéléromètre permettant de déterminer l'accélération verticale de la moto (1).  3. Motorcycle lighting control device according to claim 2, characterized in that it comprises at least one accelerometer making it possible to determine the vertical acceleration of the motorcycle (1). 4. Dispositif de commande d'éclairage de moto selon la revendication 2 ou 3, caractérisé en ce qu'il comprend un moyen de commande (4) agissant sur le mécanisme (3) d'orientation du phare (2) de manière à maintenir les angles d'assiette, de roulis et de lacets du phare, lors de l'inclinaison de la moto (1).  4. Motorcycle lighting control device according to claim 2 or 3, characterized in that it comprises a control means (4) acting on the headlight orientation mechanism (3) (2) so as to maintain the angles of attitude, roll and laces of the headlight, when tilting the motorcycle (1). 5. Dispositif de commande d'éclairage de moto selon la revendication 3, caractérisé en ce qu'il comprend des moyens de calculs permettant de déterminer la trajectoire de la moto 1 en fonction de ses inclinaisons et de sa vitesse.  5. Motorcycle lighting control device according to claim 3, characterized in that it comprises calculation means making it possible to determine the trajectory of the motorcycle 1 as a function of its inclinations and of its speed. 6. Dispositif de commande d'éclairage de moto selon la revendication 5, caractérisé en ce qu'il comprend un moyen de commande (4) agissant sur le mécanisme (3) d'orientation du phare (2) de manière à diriger l'éclairage de la moto (1) en direction de la trajectoire calculée.  6. Motorcycle lighting control device according to claim 5, characterized in that it comprises a control means (4) acting on the mechanism (3) for orienting the headlight (2) so as to direct the motorcycle lighting (1) towards the calculated path. 7. Application de l'invention, selon l'une des revendications précédentes aux véhicules dont la conduite et/ou le comportement sont proches de ceux d'une moto en ce qu'ils sont susceptibles d'être soumis à une forte assiette et/ou un fort roulis lors de leur déplacement, ces véhicules pouvant par exemple être une moto-neige, un scooter des mers, ou encore un hors-bord. 7. Application of the invention according to one of the preceding claims to vehicles whose driving and / or behavior are close to those of a motorcycle in that they are liable to be subjected to a strong attitude and / or a strong roll during their movement, these vehicles can for example be a snowmobile, a jet ski, or even a speedboat.
FR0211687A 2002-09-20 2002-09-20 GYROSTABLE HEADLIGHT FOR MOTORCYCLE Expired - Fee Related FR2844759B1 (en)

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Cited By (12)

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EP1614999A2 (en) * 2004-07-05 2006-01-11 Renault SAS System and method of automatically controlling the position of an environment detecting sensor, on board a motorised vehicule.
EP1942049A3 (en) * 2007-01-08 2009-07-29 Ecie S.r.l. Illumination device with control of the alignment of the light beam relative to a fixed plane
FR2929195A1 (en) * 2008-03-27 2009-10-02 Peugeot Citroen Automobiles Sa Illuminating headlamp for motor vehicle, has hexapod assembly producing three degrees of freedom in rotation to mobile crown wheel respectively around longitudinal and horizontal rolling axis, transversal site axis and vertical axis
ITPD20080207A1 (en) * 2008-07-11 2010-01-12 Univ Firenze LIGHTING DEVICE FOR TRACKING THE PATH TO BE USED ON MOTORIZED VEHICLES WITH WIDE ROLLIO AND BECCHEGGIO, AND THE ASSOCIATED METHOD.
WO2012022658A1 (en) * 2010-08-18 2012-02-23 Quality Electronics Design S.A Headlight for a two-wheeled vehicle
US8260505B2 (en) 2006-03-21 2012-09-04 Koninklijke Philips Electronics N.V. Apparatus and method for determining roll angle of a motorcycle
EP2669161A1 (en) * 2012-05-31 2013-12-04 Yamaha Hatsudoki Kabushiki Kaisha Sub headlight unit for use in vehicle that leans into turns
CN104703869A (en) * 2012-10-11 2015-06-10 三菱电机株式会社 Vehicle headlight device
ES2550524A1 (en) * 2014-05-07 2015-11-10 Rubén SÁEZ LÓPEZ Method and electromechanical device stabilizing the front lighting of a motorcycle (Machine-translation by Google Translate, not legally binding)
FR3067479A1 (en) * 2017-06-12 2018-12-14 Mr Crescencio Pedro- 6, Impasse Jeannette-92700 Colombes Agissant Au Nom Et Pour Le Compte De La Societe Gironac, Sas En Cours De Formation SYSTEM FOR COMPENSATING THE VARIATIONS OF INCLINATIONS OF A MEANS OF TRANSPORT IN RELATION TO THE TERRESTRIAL GRAVITATION AXIS
IT201900019289A1 (en) * 2019-10-18 2021-04-18 Marino Guidotti A self-regulating lighting system for motor vehicles in general, in particular motorcycles
WO2024041886A1 (en) * 2022-08-25 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Motorcycle, and method for operating a holding device of a headlight of a motorcycle

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EP3617048A1 (en) 2018-08-28 2020-03-04 The Swatch Group Research and Development Ltd Portable or vehicle-mounted active lighting device
EP3616989A1 (en) 2018-08-28 2020-03-04 The Swatch Group Research and Development Ltd Portable or vehicle-mounted active lighting device
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CN111268007B (en) * 2020-02-27 2021-05-18 衢州市云端智能科技有限公司 Motorcycle headlight follow-up steering system

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614999A3 (en) * 2004-07-05 2008-10-29 Renault SAS System and method of automatically controlling the position of an environment detecting sensor, on board a motorised vehicule.
EP1614999A2 (en) * 2004-07-05 2006-01-11 Renault SAS System and method of automatically controlling the position of an environment detecting sensor, on board a motorised vehicule.
US8260505B2 (en) 2006-03-21 2012-09-04 Koninklijke Philips Electronics N.V. Apparatus and method for determining roll angle of a motorcycle
EP1942049A3 (en) * 2007-01-08 2009-07-29 Ecie S.r.l. Illumination device with control of the alignment of the light beam relative to a fixed plane
FR2929195A1 (en) * 2008-03-27 2009-10-02 Peugeot Citroen Automobiles Sa Illuminating headlamp for motor vehicle, has hexapod assembly producing three degrees of freedom in rotation to mobile crown wheel respectively around longitudinal and horizontal rolling axis, transversal site axis and vertical axis
ITPD20080207A1 (en) * 2008-07-11 2010-01-12 Univ Firenze LIGHTING DEVICE FOR TRACKING THE PATH TO BE USED ON MOTORIZED VEHICLES WITH WIDE ROLLIO AND BECCHEGGIO, AND THE ASSOCIATED METHOD.
WO2010004017A2 (en) * 2008-07-11 2010-01-14 Universita' Degli Studi Di Firenze Path tracking illuminating device to be used on motorised vehicles having wide roll and pitch, and method associated thereto
WO2010004017A3 (en) * 2008-07-11 2010-04-01 Universita' Degli Studi Di Firenze Path tracking illuminating device to be used on motorised vehicles having wide roll and pitch, and method associated thereto
WO2012022658A1 (en) * 2010-08-18 2012-02-23 Quality Electronics Design S.A Headlight for a two-wheeled vehicle
US9028117B2 (en) 2010-08-18 2015-05-12 Quality Electronics Design S.A. Headlight for a two-wheeled vehicle
EP2669161A1 (en) * 2012-05-31 2013-12-04 Yamaha Hatsudoki Kabushiki Kaisha Sub headlight unit for use in vehicle that leans into turns
US9810392B2 (en) 2012-10-11 2017-11-07 Mitsubishi Electric Corporation Vehicle headlight device
CN104703869A (en) * 2012-10-11 2015-06-10 三菱电机株式会社 Vehicle headlight device
CN104703869B (en) * 2012-10-11 2017-10-24 三菱电机株式会社 Vehicle headlamp apparatus
ES2550524A1 (en) * 2014-05-07 2015-11-10 Rubén SÁEZ LÓPEZ Method and electromechanical device stabilizing the front lighting of a motorcycle (Machine-translation by Google Translate, not legally binding)
FR3067479A1 (en) * 2017-06-12 2018-12-14 Mr Crescencio Pedro- 6, Impasse Jeannette-92700 Colombes Agissant Au Nom Et Pour Le Compte De La Societe Gironac, Sas En Cours De Formation SYSTEM FOR COMPENSATING THE VARIATIONS OF INCLINATIONS OF A MEANS OF TRANSPORT IN RELATION TO THE TERRESTRIAL GRAVITATION AXIS
WO2018229405A1 (en) * 2017-06-12 2018-12-20 Gironac System for compensating the tilt angle variations of a device of a transport means relative to the earth's gravitational axis
IT201900019289A1 (en) * 2019-10-18 2021-04-18 Marino Guidotti A self-regulating lighting system for motor vehicles in general, in particular motorcycles
WO2024041886A1 (en) * 2022-08-25 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Motorcycle, and method for operating a holding device of a headlight of a motorcycle

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