DE102009024129A1 - Motor vehicle headlamp control has an automatically adjusted speed of movement between full and dipped beam, according to the vehicle speed and the presence of detected objects - Google Patents

Abstract

To control the lighting from motor vehicle (F) headlamps, with at least one swing headlamp (2li.2re), a diaphragm distributor (AVli,AVre) gives a dipped beam (TFVli,TFVre) or full beam (FVli,FVre). The control action to shift the lighting between full and dipped beam settings and/or a horizontal lamp swing movement moves them at a variable and automatic adjustable speed according to the vehicle driving speed and the detection of objects (O1,O2) within the vehicle environment.

Description

The The invention relates to a method for driving light control of a vehicle with at least one swiveling headlight, in which as light distributions a low beam distribution, a Teilfernlichtverteilung and / or a high beam distribution can be adjusted.

The not yet published patent application DE 10 2008 014 182.8 the applicant discloses a method for driving light control of a vehicle, in which a headlamp of the vehicle as light distributions a low beam distribution, a Teilfernlichtverteilung and / or a high beam distribution are set, the vehicle a sensor for detection of oncoming and / or moving in the same direction Includes objects. The high beam distribution is pivoted in dependence on a position of the detected objects out of the range of these, so that a glare-free space for the objects is generated, wherein the high beam distribution is pivoted maximally to edges of the object.

Of the Invention is based on the object, an improved method to indicate the driving light control of a vehicle.

The The object is achieved by a method for driving light control of a vehicle with the features of the claim 1 solved.

advantageous Embodiments of the invention are the subject of the claims.

at the method for driving light control of a vehicle with at least a swiveling headlights are used as light distributions a Low beam distribution, a Teilfernlichtverteilung and / or a High beam distribution set.

According to the invention for setting one or more light distributions, a lighting range, a Ausleuchtcharakteristik and / or a horizontal tilt angle the at least one headlamp so controlled that a rate of change in the transition of one of the light distributions to another, in particular, from the low-beam distribution to the split-beam distribution and / or to the high beam distribution or vice versa, variably set becomes.

Under a Teilfernlichtverteilung is understood a light distribution, which in turn can have different light distributions, which different swivel angle of a light cone, different Illuminating characteristics and / or headlights that are between a Lighting range of the low beam distribution and the high beam distribution lie, are marked.

through the process of the invention is a targeted predefinable illumination characteristic of the vehicle ahead Realizable area. In particular, one is always to a momentary Adapted traffic situation adjustment of the light distribution of Produced vehicle, which a driver of the vehicle a maximum possible view while avoiding unpleasant light effects. When setting the light distributions depending on from the traffic situation will be among other road users in particular also takes into account whether the vehicle inside or outside closed towns, on two-lane or multi-lane carriageways. In addition is it to the driver of the vehicle by the automatic adjustment of the Light distributions possible, permanently the high beam distribution to use without forgetting to switch on or off the high beam, what an increase in ride comfort for the driver and a safety increase for all road users creates. By controlling the beam range, the illumination characteristics and / or the horizontal pivot angle of the at least one headlight the light distributions are very flexibly adjustable and to the respective traffic situation optimally adapted illumination can be generated become. Thus, a largely constant illumination of an apron area of the vehicle, resulting in an increase in the Safety for occupants of the vehicle and other road users results. By setting the rate of change is for the driver and other road users as realized pleasant switching between the light distributions, which at the same time by adaptation to the current traffic situation, in which the vehicle is located contributes to the safety increase.

Prefers is the rate of change according to a Development of the invention automatically adjusted, with the automatic adjustment of the rate of change between the light distributions a quiet and for the Driver and other road users pleasant driving light generates and especially for the driver and other road users as disturbing felt flicker by frequent and very abrupt change of light distribution can be avoided.

Furthermore, the rate of change is specified as a characteristic function, wherein the rate of change is adjusted in particular as a function of a speed of the vehicle, of detected objects in an environment of the vehicle and / or environmental parameters. This allows for optimal use of the Method in the traffic situation-dependent adjustment of the light distributions.

According to one particularly preferred embodiment of the invention Method, the rate of change is set so that a continuous transition or an abrupt switch is generated between the light distributions. Thus it is on the one hand possible for the driver and other road users as pleasant perceived calm and gradual switching to achieve between the light distributions and on the other hand the need for very fast switching, for example in case of sudden oncoming traffic, also an abrupt one To enable switching so that at maximum visibility for the driver of the vehicle dazzling oncoming traffic is avoided.

to Setting the rate of change is preferred a control of a Scheinwerferaktuatorik and / or bulbs of the headlamp, with a speed of the headlight actuator, an on and / or off and / or a brightness of the lamps controlled and / or intermediate steps in the adjustment of the light distributions be set. Among the intermediate steps are all light distributions the Teilfernlichtverteilung understood that between the Low beam distribution and the high beam distribution are located. These Intermediate steps can, for example, based on characteristics be predetermined. To set the switching speed in particular a time until reaching an intermediate step and / or a time, how long the light distribution on the intermediate step is to be kept, given. The time to reach the Intermediate step is again controlled by the speed of the headlight actuator. Also is the rate of change due to the targeted and / or switching off individual bulbs in a simple and simultaneously effective manner achievable. Thus arises for the driver an impression of a flowing, steady light change.

Preferably Be the headlight range, the Ausleuchtcharakteristik and / or the horizontal tilt angle of a single headlight at the same time, in particular synchronously, controlled, whereby the for the driver and the other road users as pleasant perceived switching realizable is.

In an embodiment of the method according to the invention Be the headlight range, the Ausleuchtcharakteristik and / or the horizontal swing angle depending on a position of the detected objects set such that one for the Objects glare-free space is generated. By the automatic adjustment The glare-free space makes it especially easy and effective Way possible, the glare of other road users to avoid, with no active involvement of the driver required is and thus this is not distracted by the traffic.

there Be the headlight range, the Ausleuchtcharakteristik and / or the horizontal swivel angle adjusted so that the Teilseparlichtverteilung and / or the high beam distribution maximum up to edges of the detected Object to be pivoted, ensuring maximum illumination while at the same time Avoidance of glare is achieved.

The Method provides additionally in a further development, that is detected, whether the vehicle is in an area with Street lighting moves. In this case, by the High beam distribution to the partial high beam distribution or low beam distribution switched.

In An embodiment of the invention is used in vehicles with several Headlamps a coordinated driving light control of the single headlamp running, the rate of change between the low beam distribution, the Teilfernlichtverteilung and / or the high beam distribution for each headlight individually chosen. Thus, the invention Method optimally executable and different lighting characteristics can be generated.

Especially preference is given to the rate of change in dependence a starting position of an actual light distribution and / or target position set a desired light distribution. In particular, be there the switching between the respective actual light distributions and the target light distributions of the headlights started simultaneously and the respective rates of change become so chosen that the desired light distributions for the headlights be achieved at the same time. This in turn results in that for the driver the even and pleasant switching is achieved.

According to one advantageous development of the invention is by means of the headlamp or the headlamp a vertical cut-off on the inner High beam angle or partial high beam angle generated so that an exact limited glare-free space is created. This will be another Improving the visibility for the driver of the vehicle at the same time improved limitation of glare-free space.

By means of the headlamp or headlights, it is also possible that when cornering the swivel angle for pivoting the headlights depending on a Geschwin is adjusted, ie that the headlights can be used simultaneously to a realization of a cornering and / or cornering light or already used in the vehicle headlights for the realization of the cornering and / or cornering light for performing the method according to the invention and whose developments are suitable.

embodiments The invention will be described in more detail below with reference to drawings explained.

there demonstrate:

1 schematically a vehicle with two headlights and a low beam distribution, a Teilfernlichtverteilung and a high beam distribution of the headlights, and

2 schematically the vehicle according to 1 and two objects in the direction of travel in an area in front of the vehicle.

each other corresponding parts are in all figures with the same reference numerals Mistake.

In 1 is a vehicle F with a sensor 1 , a right-hand headlight 2re and a left headlight p2 shown.

By means of the sensor 1 be located in front of the vehicle F objects O1, O2, which in the 2 are shown in more detail, recorded. At the sensor 1 For example, a camera, a radar sensor, a lidar sensor or similar sensors can be detected by means of which objects O1, O2 can be detected, with objects O2 and / or objects O1 moving in the same direction being detected in a region in the direction of travel in front of the vehicle F can be.

Depending on the detected objects O1, O2, but also depending on what traffic situation the vehicle F is in, the headlights are used as light distributions p2 . 2re automatically each a low beam distribution AVli, AVre, a Teilslichtlichtverteilung TFVli, TFVre and / or a high beam distribution FVli, FVre set to allow for a driver of the vehicle F maximum illumination while complying with legal requirements and avoiding dazzling other road users. In other words, the driver of the vehicle F can drive with permanently activated high-beam setting, the headlight range, the illumination characteristic and the horizontal tilt angle are automatically adjusted so that there is always an adapted to the current situation illumination of the front of the vehicle F area and others Road users are not dazzled.

By means of the headlights p2 . 2re an asymmetrical low beam distribution is generated, which is characterized in that the low beam distribution AVre of the right headlight 2re a lower beam range than the low beam distribution AVli of the left headlamp p2 so that in right-hand traffic dazzling of road users in oncoming traffic on the left side of the vehicle F is avoided. Alternatively, however, other not shown, in particular to legal requirements of different countries adapted Abblendlichtverteilungen means of the headlights p2 . 2re produced.

For generating the high beam distributions FVli, FVre not shown in detail headlight actuators, such as rollers, diaphragms and / or electric motors, driven in such a way that an illumination is achieved with the largest possible beam range. Alternatively or additionally, also not shown bulbs of the respective headlight p2 . 2re , which may be various and known light sources, such as incandescent lamps, light-emitting diodes and / or gas discharge lamps, within the respective headlamp p2 . 2re moved and / or switched on or off, that the high beam distributions FVli, FVre be generated.

Furthermore, by means of the headlights p2 . 2re Partial beam distributions TFVli, TFVre can be generated. The Teilfernlichtverteilungen TFVli, TFVre can have a variety of light distributions, which are characterized by different tilt angle of the light cone, different illumination characteristics and / or headlights. To produce these Teilfernlichtverteilungen TFVli, TFVre turn the headlight actuators of the respective headlight p2 . 2re driven. In this case, for example, the beam range of the headlights p2 . 2re by a well-known headlamp leveling, such. As electric motors can be adjusted. Alternatively or additionally, the headlight range is regulated, for example, based on the diaphragms and / or rollers.

Also to set the different illumination characteristics, which in particular by different shapes and widths Distinguish the light cone, the bulbs are switched on or off or the headlight actuators, d. H. the screens and / or rollers, driven.

To create the different tilt angles, the headlights p2 . 2re designed to be pivotable, preferably headlight actuators, so-called Kurvenlichtsteller used who which, for performing a Kurvenlichtfunktion already on the headlights p2 . 2re are provided. Also, the tilt angle of the headlights p2 . 2re may alternatively or additionally by targeted switching on and / or off the bulbs of the headlights p2 . 2re be set so that not the respective headlight p2 . 2re itself, but the light beam or the light distribution of the light distribution are pivoted.

The pivoting of the light cone, the change of Ausleuchtcharakteristika, the luminous range of the light distributions and the detection of the objects O1, O2 in front of the vehicle F takes place in particular according to the unpublished patent application DE 10 2008 014 182.8 The applicant discloses methods for controlling the driving light of a vehicle, wherein the light cones are preferably pivoted to the edges of the objects O1, O2 in order to produce a glare-free space for them.

at the automatic adjustment of the light distributions depending on the traffic situation, in particular depending on a speed of the vehicle F, the detected objects O1, O2 and / or ambient parameters thus become between the light distributions Switched that quiet and for the driver and others Road users pleasant driving light is generated and in particular for the driver and the other road users as disturbing felt flicker phenomena by frequent and very Abrupt change of light distribution can be avoided.

This quiet driving light is achieved by having a rate of change between the low beam distribution AVli, AVre, the Teilfernlichtverteilung TFVli, TFVre and / or the high beam distribution FVli, FVre variable, especially automatically, is set.

The rate of change is based on a control of the headlight actuator and / or the bulbs of the headlights p2 . 2re set. For this purpose, in particular the speed with which the headlight actuator system is moved, the switching on and / or off is carried out and / or the brightness of the lighting means is adjusted. In particular, intermediate steps between the light distributions are set, this being done by starting the intermediate steps and / or holding them.

On the basis of this control, it is possible to adjust the headlight range, the illumination characteristic and / or the horizontal tilt angle simultaneously and in particular such that an adjustment of the light distributions of both headlights p2 . 2re finished at the same time and thus the change between the light distribution for the driver and the other road users is perceived as very pleasant.

Because the headlights p2 . 2re At the same time may have different actual light distributions is in the illustrated vehicle F with multiple headlights p2 . 2re a coordinated driving light control of the individual headlights p2 . 2re executed, wherein the rate of change between the low-beam distribution AVli, AVre, the Teilslichtlichtverteilung TFVli, TFVre and / or the high beam distribution FVli, FVre for each headlight p2 . 2re individually, preferably in dependence on a respective starting position of the actual light distribution and / or target position of a desired light distribution is selected.

Thus, for example, depending on a current traffic situation in which the vehicle F at a greater distance a vehicle comes to meet, the left headlight p2 controlled so as to generate a left-side part-light distribution TFVli, and the right-side headlight 2re is controlled so that the divided-long-light distribution TFVre is generated. At the same time, the headlamp range reaches the light distribution of the right headlamp 2re the light range of the light distribution of the left headlamp p2 so that the adjustment of both headlights p2 . 2re completed at the same time.

Upon further approach of the oncoming vehicle, the light distribution of the left headlamp becomes p2 Turned to the left and the beam range is reduced. At the same time the lighting range of the light distribution of the right headlight 2re further reduced. In yet another approach, that is, when a certain horizontal tilt angle of the left light distribution is achieved, the headlight range and light distribution is adjusted so that the low beam distribution AVli is formed and pivoted back to an initial position (see spontaneous and fluid change). Thus, the gradual and perceived as pleasant for the driver switching between the light distributions is achieved. Note: The headlight range refers to the light range for the adaptive highway light, which lights up in the direction of oncoming traffic.

The light distributions of the headlights p2 . 2re are always set in such a way that a glare-free space for other road users is generated.

Alternatively or in addition to the gradual or continuous switching of the light distributions of the headlights p2 . 2re the rate of change is adjusted to produce an abrupt switch between the light distributions becomes. This is particularly necessary if, for example, suddenly a road user appears in oncoming traffic of the vehicle F, so that glare of the road user is avoided. This will be the headlights p2 . 2re preferably also individually controlled.

Also, by means of the sensor 1 preferably detects whether the vehicle F is moving in an area with street lighting, in which case the high beam distribution FVli, FVre is switched to the divided high beam distribution TFVli, TFVre or the low beam distribution AVli, AVre.

The rate of change is set in particular as a characteristic function as a function of the speed of the vehicle F, the detected objects O1, O1 to O3, in particular their position in an environment of the vehicle G, and the environmental parameters. The environmental parameters include in addition to a brightness, which also by means of the sensor 1 is detected on which type of road, the vehicle F moves. In this case, for example, a distinction between roads that run inside and outside closed villages, roads with two or more lanes, highways, highways and other types of roads. These environmental parameters are preferably also by means of the sensor 1 or further not shown sensors detected. In addition, for example, data stored in a navigation system of the vehicle F are also used to record the current environmental parameters.

in the The following explains how to use several examples switched depending on the situation between the light distributions and the rate of change is set.

One Change from the low-beam distribution AVli, AVre to the split-beam distribution TFVli, TFVre is executed, for example, if the vehicle F leaves a closed town and another vehicle is driving ahead.

In the method described here is also based on the fact that, for mechanical reasons when changing from the low-beam distribution AVli, AVre in the Teilfernlichtverteilung TFVli, TFVre a level of the beam width can be different, so that between the beam range of the low beam distribution AVli, AVre and the beam range the sub-beam distribution TFVli, TFVre a gap, the so-called sub-beam gap, can arise. Furthermore, the headlight range for the center of the split-frame image, ie for the area between the headlights p2 . 2re in front of the vehicle F, adapted to the traffic situation.

These adjustments are made by a corresponding increase or decrease by means of a so-called headlight leveling controller, also known as LWR-Steller. The LWR actuator is for example in a version of the headlights p2 . 2re As xenon headlights for a dynamic control of a light level and thus the lighting range responsible, in order to exclude the dazzling of other road users in Fahrzeugnickbewegungen or loading state changes. The result of this regulation of the LWR actuator is referred to below as dynamic headlight range control, also referred to as dyn_LWR for short.

On the value of the dynamic headlamp leveling becomes additional a correction value (= add_LWR) for a headlight range adjustment added. The correction value becomes the sum of a first part (= add_LWR_1), resulting from the different luminosity level between the respective low-beam distribution AVli, AVre and the sub-beam gap and a second part (= add_LWR_obj), which results from a Distance to the next vehicle results, formed.

1°

= Einstellvorschrift für die Neigung einer Lichtoberkante vom Abblendlicht zur Fahrbahn,

h

= Anbauhöhe des Scheinwerfers 2li , 2li,

d

= Distanz bis zum nächsten Fahrzeug bzw. Objekt O1, O2,

ermittelt.For an optimal change of the low-beam distribution AVli, AVre, which is characterized by the starting position of the actual light distribution with a low beam headlamps, a low beam illumination characteristic, a Kurvenlichtstellung, ie the horizontal tilt angle, and the dynamic headlamp leveling, in the Teilfernlichtverteilung TFVli, TFVre, by the target position of the target light distribution is characterized by a partial far-light illumination range, a partial far-illumination illumination characteristic, a cornering light position, ie the horizontal tilting angle, the dynamic headlamp leveling and the correction value, the following steps are carried out:
The headlights p2 . 2re are in the initial position of the actual light distribution, ie the described low beam distribution AVli, AVre. First, the target value of the sum of the dynamic headlamp leveling and the correction value is determined. The first share add_LWR1 is of a construction of the headlights p2 . 2re dependent and thus a fixed value. The second part add_LWR_obj will be according to: add_LWR_obj [°] = 1 ° - arctan (h / d) [1] With:

1 °

= Setting instruction for the inclination of a light upper edge from the low beam to the road,

H

= Mounting height of the headlamp p2 . p2 .

d

= Distance to the next vehicle or object O1, O2,

determined.

The light distributions headlights p2 . 2re are transferred from the cornering light position of the low-beam light distributions AVli, AVre in the Kurvenlichtstellung the Teilfernlichtverteilungen TFVli, TFVre. A pivoting movement of the light distributions takes place, for example, with a fixed pivoting speed of, for example, 3 ° / s. Alternatively, the pivoting movement can also be carried out such that this for each headlight p2 . 2re is carried out individually. The pivoting is completed when both light distributions of the headlights have reached the target position of the horizontal pivot angle, ie the setpoint of the cornering light angle of the Teilfernlichtverteilungen TFVli, TFVre. At the same swing speed for both headlights p2 . 2re can the swivel duration for both headlights p2 . 2re be different, since the starting position and target position of the headlights p2 . 2re is individual. Due to the already described individual pivoting movement with different pivoting speeds but also equal pivoting times can be achieved. Whether the swivel speed for both headlights p2 . 2re is given equal or individual, depends in particular on the speed of the vehicle F, the oncoming vehicle, other detected objects O1, O2 and other environmental parameters and is preferably automatically specified. Thus, the swing speed is a part of the rate of change between the light distributions or the rate of change is influenced by the control of the swing speed.

Of the Change of state of the Ausleuchtcharakteristik the dipped beam distributions AVli, AVre to the illumination characteristics of the partial remote light distributions TFVli, TFVre is for example by means of a shutter (= shutter) executed. This change of state and the change the beam range to the sum of the dynamic headlamp leveling and the correction value by means of the headlamp leveler become synchronous began. The duration of the change is fixed. This results in the change of the illumination characteristic by means of the shutter a fixed speed of change, for The LWR actuator is the adjustment speed with each adjustment Recalculated, since the target position from the distance d to the next vehicle or object O1, O2 depends.

The transition from the low-beam distribution AVli, AVre in the Teilfernlichtverteilung TFVli, TFVre is complete when the shutter and the LWR actuator have reached the target position. Thus, the change speed of the shutter and the adjustment speed for the LWR actuator other influencing factors, by means of which the rate of change being affected.

This method can be applied analogously when a headlamp p2 . 2re already operated in the split-beam distribution TFVli, TFVre and the other headlamp p2 . 2re from the low-beam distribution AVli, AVre is to be transferred to the divided-beam distribution TFVli, TFVre. In this case, it is possible, in particular, for the headlamps which are not already operated in the partial high-beam distribution TFVli, TFVre p2 . 2re Must be "serviced".

When next example will be an automatic change of the Low beam distribution AVli, AVre in the high beam distribution FVli, FVre explains, this change, for example, during Leaving a closed village is carried out if in front of the vehicle F no other road users detected become.

at The method described here is based on the facts, that for mechanical reasons when changing from the low beam distribution AVli, AVre in the high beam distribution FVli, FVre over the Sub-beam distribution TFVli, TFVre procedure.

The Positioning of the bend lighting can be in the starting position be equal to the target position and thus for the high beam distribution FVli, FVre be maintained, with the cornering light position be defined by a well-known curve light function can.

The total Teilfernlichtverteilung resulting from the Teilfernlichtverteilungen TFVli, TFVre is inherently smaller designed to the vehicle center than in the formed from the high beam distributions FVli, FVre total high beam distribution. This is due to the fact that as by means of the headlights p2 . 2re Teilfernlichtverteilungen TFVli, TFVre can be generated with a vertical healing-dark boundary, by means of which in a simple manner, the glare-free space for the other road users, in particular the objects O1, O2, can be realized.

In order to when switching from the low beam distribution AVli, AVre in the high-beam distribution FVli, FVre via the split-beam distribution TFVli, TFDhere is no gap in the light pattern of the light distribution arises, the light cone when passing through the Teilfernlichtverteilung TFVli, TFVre preferably each about the horizontal tilt angle pivoted inward to the vehicle center, wherein the LWR actuator in the position of dynamic headlamp leveling.

By means of the headlights p2 . 2re will the Abblendlichtverteilungen AVli, AVre, which in turn by the initial position of the actual light distribution with the low beam headlamps, the Abblendlichtausleuchtcharakteristik, the cornering light position, ie the horizontal swivel angle, and the dynamic headlamp leveling characterized generates, and should slowly, ie by adjusting the rate of change gradually and continuously, be switched to the high beam distribution AVli, AVre.

These are the light distributions of both headlights p2 . 2re synchronously with a fixed predetermined speed of the low-beam distribution AVli, AVre first in the Teilslichtlichtverteilung TFVli, TFVre transferred. At the same time, the light cones of the light distribution are swiveled from the cornering light position of the low beam to the cornering light position of the partial high beam pivoted to the center of the vehicle, the swiveling values for the light distributions of the headlights p2 . 2re are given as offset values. As an adjustable angle range for the left headlight p2 and right-wing bogus 2re can be different, the required speeds are calculated from a fixed period of time for the left and right light turnbuckle, which is why the respective light cone of the headlights p2 . 2re be moved with its own adjustment speed. This period of time is chosen in a particularly advantageous manner so that the adjustment of the cornering light actuator at the same time as the adjustment of the light distribution, ie the headlight range and illumination characteristic, is reached.

The light distributions of both headlights p2 . 2re are transferred into the high-beam distribution FVli, FVre synchronously with a fixed further speed from the divided high-beam distribution TFVli, TFVre. At the same time, the light cones of the headlights p2 . 2re from the cornering light position of the partial high beam in the cornering light position of the high beam transferred. Because the angle range to be adjusted for the left and right headlights p2 . 2re again may be different, the required speeds are calculated separately from a further fixed period of time for the left and right turn light, which is why the respective light cone of the headlights p2 . 2re also be moved here with its own adjustment speed. The adjustment speed required for this is again selected so that the adjustment of the cornering light actuator at the same time as the adjustment of the light distribution, ie the beam width and illumination characteristic, is reached.

One alternative method consists in a sequential sequence, wherein turn from the low beam distribution AVli, AVre in the high beam distribution FVli, FVre should be displayed.

These are the headlights p2 . 2re initially individually transferred from the cornering light position in the cornering light position of the low-beam distribution AVli, AVre in the cornering light position of the Teilfernlichtverteilung TFVli, TFVre, wherein the pivoting values for the light distribution of the headlights p2 . 2re Here, too, are preferably given as offset values, which depend on the light distributions in the partial high beam. Also, the required speeds are calculated separately from a fixed period of time for the left and right light turnbuckles, so that the respective light cone of the headlights p2 . 2re be moved with its own adjustment speed and the rate of change can be adjusted individually.

Subsequently, the light distributions, ie the headlights and the illumination characteristics, both headlights p2 . 2re synchronized with a fixed predetermined speed of the low beam distribution AVli, AVre on the Teilslichtlichtverteilung TFVli, TFVre in the in the high beam distribution FVli, FVre transferred.

Subsequently, the light cones of the headlights p2 . 2re of the inwardly tilted Kurvenlichtstellung the Teilfernlichtverteilung TFVli, TFVre transferred to the cornering light position of the high beam distribution FVli, FVre, wherein the pivoting speed is determined from the fixed predetermined further period of time.

Either in the simultaneous as well as in the sequential order of the Method, the offset values of the pan values for the Teilfernlichtverteilung TFVli, TFVre example by means of a characteristic as a function of the speed of the vehicle F be defined.

The following example describes the process sequence in the switching of Teilfernlichtverteilung TFVli, TFVre in the high beam distribution FVli, FVre, this switching z. B. is then executed when a vehicle ahead on the horizon disappears, ie in particular from the receiving range of the sensor 1 emotional.

there are the light distributions as the starting position of the actual light distribution in the sub-beam distributions TFVli, TFVre, which by the Teilfernlichtleuchweite, the partial high-beam illumination characteristic, the cornering light position, the dynamic headlamp leveling and the correction value is.

All three adjustment mechanisms for changing to the high-beam distribution FVli, FVre are again started at the same time, whereby the speeds of the shutter and LWR actuator are determined from a fixed period of time, so that they achieve their objectives, ie the desired illumination characteristics and lighting range, at the same time. The adjustment speed for the curve light actuator is again controlled with its own fixed predetermined speed, for example, 0.5 ° / s.

ever according to situation, the adjustment of the shutter and the LWR-Stellers or those of the cornering lamp faster completed be. The change is only complete when all three actuators have reached their target positions. alternative The speeds can also be determined individually and be given that all three adjustment mechanisms completed at the same time are, so again by adjusting the rate of change one for the driver of the vehicle F and other road users pleasant switching between the light distributions is achieved.

One Alternating one-way sub-beam distribution TFVre and Low beam distribution AVli in the high beam distribution FVli, FVre is typically executed when an oncoming one Vehicle has passed its own vehicle F

If the oncoming vehicle a few meters, for example, less than 50 m away from the vehicle F, is the left headlight p2 When driving in the right-hand traffic, this is set in such a way that the low-beam distribution AVli is produced with the dipped-beam illumination range, the dipped-beam illumination characteristic, the cornering light position and the dynamic headlight range control.

The right headlight 2re is set so that the divided high beam light distribution TFVre is generated with the low beam headlight, the partial high beam illumination characteristic, the cornering light position, the dynamic headlamp leveling and the correction value, the divided long distance light distribution TFVre being designed to exclude dazzling of the oncoming vehicle but to provide visibility to the drivers of their own Vehicle F is maximized.

After the oncoming vehicle has passed its own vehicle F, ie out of the detection range of the sensor 1 is moved in by means of both headlights p2 . 2re in the high beam distribution FVli, FVre changed.

This change takes place for the above example of the right-hand traffic such that the light distribution of the left headlamp p2 is first transferred from the low-beam distribution AVli in the sub-beam distribution TFVli. This happens in particular with a fixed predetermined rate of change or time duration.

The light distribution of the right headlight 2re remains in the split beam light distribution TFVre and simultaneously changes at a fixed predetermined speed from the cornering light position of the divided beam light distribution TFVre into the curved light position of the high beam distribution FVre.

If the shutter and the LWR-actuator of the left headlight p2 each have reached the position for the split-beam distribution TFVli, is for both headlights p2 . 2re the already described in the previous example synchronous change from the Teilfernlichtverteilung TFVli, TFVre performed in the high beam distribution FVli, FVre. The change is completed when both bills p2 . 2re have reached the target positions.

The reversed change from the high beam distribution FVli, FVre to the split beam distribution TFVli, TFVre for both headlights p2 . 2re is carried out in particular when in front of the vehicle F a vehicle traveling in the same direction appears, which is caused by the sensor 1 is detected.

When switching, in turn, all three adjustment mechanisms, ie the shutter for the illumination characteristic, the LWR actuator for the beam range and the curve light controller for the pivoting range of the light distribution of the respective headlight p2 . 2re driven. Depending on whether the vehicle in front is still far outside the glare area or suddenly appears in the vicinity or even in the glare area, z. B. due to a street crest, a gradual and continuous or a faster, ie abrupt change of light distribution is possible.

First, both headlights p2 . 2re operated such that they have the high beam distribution FVli, FVre. If a vehicle or object O1, O2 occurs in front of the own vehicle F, it is decided on the basis of the distance to the own vehicle F and the knowledge of the glare area, whether a quick or slow change in the sub-beam light distributions TFVli, TFVre is performed.

This is determined, for example, that at distances the larger as the width of the blend area plus a fixed security area slower change can be performed below this Values faster. This decision will be clarified by means of the specification of the time required for the change the corresponding security area with knowledge of the current security Relative speed between the own vehicle F and the preceding vehicle Vehicle is calculated.

For the slow, ie the gradual and continuous change, the headlights fer p2 . 2re from the cornering light position of the high beam distribution FVli, FVre transferred with a predetermined rate of change or time in the Kurvenlichtstellung the Teilfernlichtverteilung TFVli, TFVre.

Are the target positions of the cornering light position of both headlights p2 . 2re achieved, both the illumination characteristics and the beam range of both headlights p2 . 2re synchronously set such that the divided-long-light distribution TFVli, TFVre are achieved. The adjustment speed for headlamp leveling is chosen in such a way that the target position of the headlight range is achieved at the same time as the goal of the illumination characteristic.

In the case of the rapid or abrupt change, on the other hand, all three adjustment mechanisms for changing to the partial high-beam distribution TFVli, TFVre are started at the same time. In this case, the speeds of the shutter and the LWR actuator are determined from a predetermined fixed time, so that they reach their target position of the illumination characteristics and the lighting range at the same time. The adjustment speed for the curve light adjuster is at its own speed, such. B. 10 ° / s, controlled. In this case, depending on the situation, the adjustment of the shutter and the LWR actuator or the cornering light actuator can be completed faster. The change is then complete when all three adjustment mechanisms of each headlight p2 . 2re have reached their goals.

A direct change from the high beam distribution FVli, FVre into the low beam distribution AVli, AVre takes place, for example, when there are no further vehicles or objects O1, O2 by means of the sensor 1 are detected and the speed of the vehicle F falls below a predetermined threshold, for example 45 km / h. Alternatively or additionally, this change can also take place when the vehicle F enters a closed locality, which as already described by means of the sensor 1 is detected due to the changing lighting conditions or by stored in the navigation system data. This change is carried out in reverse order to the already described change from the low-beam distribution AVli, AVre in the high beam distribution FVli, FVre, the rates of change may differ from this change and in particular be adapted to the situation.

The change from the split-beam distribution TFVli, TFVre to the single-sided low beam distribution AVli of the left headlight p2 is executed, for example, when an oncoming vehicle approaches the vehicle F further.

The The following example describes the change from the high beam distribution FVli, FVre into the single-sided split-beam distribution TFVre and the one-sided low-beam distribution AVli.

The light distributions of the headlights p2 . 2re First, the main beam distributions FVli, FVre, where the light distribution of the left headlight p2 to switch to the low beam distribution AVli and the light distribution of the right headlight 2re into the sub-beam distribution TFVre.

At the right headlight 2re First, all three adjustment mechanisms for switching to the sub-beam distribution TFVre are activated at the same time. In this case, the adjustment speed of the shutter and the LWR actuator are determined from a predetermined, fixed time, so that they reach their target position, ie the target illumination characteristic and the target beam range, at the same time. The adjustment speed for the curve light adjuster is at its own speed, such. B. 10 ° / s, controlled. Depending on the situation, the adjustment of the shutter and the LWR actuator or the cornering lamp faster or all adjustments can be completed at the same time.

The change in the low-beam distribution AVli of the left headlamp p2 becomes simultaneous with the adjustment of the light distribution of the right headlamp 2re started. Here, too, the adjustment speed of the shutter and the LWR actuator are determined from a further predetermined, fixed time so that they reach their destination, ie the illumination characteristic and the luminous range at the same time. If necessary, a change from the cornering light position of the high beam distribution FVli to the curve light position of the low beam distribution AVli is carried out at a separate speed in parallel thereto. The change is complete when the light distributions of both headlights p2 . 2re have reached their target positions.

For the one-sided dimming of the right headlight 2re The procedure is analogous to the above embodiment, with only "left" to be replaced by "right" and "right" by "left".

One Change from these target positions, d. H. from the unilateral split-beam distribution TFVre and the unilateral low beam distribution AVli in a two-sided Low beam distribution AVli, AVre, for example, then applied when the vehicle F in the above-described situation of the oncoming Vehicle enters a closed town and / or the driving speed is the limit of the speed of the vehicle F, For example, 45 km / h, falls below and thus in the two-sided Low beam distribution AVli, AVre is to be changed.

For this change, the same procedure as described above for the changeover from the divided-beam light distribution TFVli, TFVre to the low-beam distribution AVli, AVre, but only for the right-hand dummy 2re applied.

If the vehicle F leaves a closed locality and there are one or more vehicles or the objects O1, O2 laterally in front of the vehicle F, a change from the bilateral low-beam distribution AVli, AVre to a single-sided partial high-beam distribution TFVre and one-sided low-beam distribution AVli or a one-sided Teilsunlichtverteilung TFVli and one-sided low-beam distribution AVre be required. For this change, the already described method for changing from the low-beam distribution AVli, AVre in the sub-beam distribution TFVli, TFVre, but only for the right headlight 2re or the left headlight p2 , applied.

2 shows the vehicle F and two the vehicle F oncoming objects O1, O2. Both headlights p2 . 2re are operated so that they each generate a Teilfernlichtverteilung TFVli, TFVre.

In the illustrated embodiment, by means of the headlights p2 . 2re by pivoting the Teilfernlichtverteilungen TFVli, TFVli the glare-free space for the object O1 generated, which is in particular a vehicle F the vehicle ahead. In this case, the object O1 is enclosed between the light cones of the sub-beam light distributions TFVli, TFVli, so that glare of the object O1 is excluded and maximum visibility and illumination for the driver of the vehicle F is achieved.

To create this glare-free space, the headlights p2 . 2re controlled such that the vertical light-dark boundary is generated at an inner part of the _{high beam angle li} ω _tfl ⁰ .

First, the oncoming vehicle is separated from the sub-beam distributions TFVli, TFVre on the left and right sides, ie, the left and right headlights p2 . 2re , enclosed and located in the glare-free room.

If the further object O2 appears in front of the vehicle F, where the object O2 is in particular a vehicle approaching the vehicle F, the light cone of the left partial high-beam distribution TFVli is pivoted to the left such that a glare-free space is generated for both objects O1 and O2 becomes. In a further approximation of the object O2 to the vehicle F, the light cone of the left partial high-beam light distribution TFVli is pivoted to a maximum of reaching an inner maximum ^{pivot angle} ω _Kl ^imax . This inner maximum ^{pivot angle} ω _Kl ^imax is in particular by a construction of the headlights p2 . 2re and their curve light plate specified.

However, when the inner maximum ^{swing angle} ω _Kl ^{imax is} reached and the oncoming object O2 continues to move ^toward the vehicle F, the divider light distribution TFli is switched to the low beam distribution AVli from the divided high beam distribution TFVli to avoid dazzling the oncoming object O2.

In the process, the light distribution of the respective headlight facing the oncoming object O2 becomes p2 or 2re transferred from the split-beam distribution TFVli, TFVre in the low-beam distribution AVli or AVre to exclude dazzling the oncoming vehicle. In the illustrated embodiment, ie in legal traffic, this means that the light distribution of the left headlamp p2 is transferred from the divisional light distribution TFVli in the low beam distribution AVli when the oncoming object O2 has fallen below a limit distance. This change corresponds to the following described flowing, ie gradual and continuous change of the Teilfernlichtverteilung TFVli, TFVre in the low-beam distribution AVli, AVre.

from flowing change is a spontaneous change, d. H. one sudden or abrupt change, to distinguish, where the choice of the type of change is situation-dependent.

The Determine if a spontaneous or flowing change is applied is to be based on the current position for the Curved light controller, the current starting position of the actual light distribution, here the sub-beam distribution TFVli and / or TFVre, and the objective position the desired light distribution, here the low-beam distribution AVli and / or AVre as well as the current traffic situation and other influences, like the speed of the vehicle F, the objects O1, O2 and determined depending on the other environmental parameters.

Should because of a closed village or too low driving speed dimmed, then the flowing change is applied.

Due to the outermost object O2 left for the left headlight p2 are dimmed, the cornering light angle, which in particular the inner part of the _{high beam} angle _li ω _tfl ⁰ corresponds, and the angle ω _{obj relevant} to the object O2. If an amount of the difference in the cornering light angle and the angle ω _{obj is} smaller than a predetermined value, for example, less than 2 °, and the light cone of the headlamp p2 still further to a required Chen angle range are pivoted outward, the flowing change is performed.

Can the light cone of the headlight p2 are not further pivoted to the required angle range to the outside, since he has already reached, for example, the inner maximum ^{pivot angle} ω _Kl ^imax , the spontaneous change, ie the abrupt change executed.

there becomes the flowing, continuous change, for example then used when the object to which the split-beam distribution TFVli and / or TFVre is set, moves further to the side. The fluent change can still be applied be if a deactivation of the Teilfernlichtverteilung TFVli and / or TFVre due to low speed or the Driving in a closed village is carried out.

A typical situation is the traffic situation in which the vehicle F meets the object O2. Both headlights will be p2 . 2re Initially controlled in such a way that the sub-beam light distribution TFVli, TFVre is generated. But at the latest when passing the oncoming object O2 must by means of the left headlight p2 , ie the object facing the object O2 headlight p2 , the low beam distribution AVli are generated so that glare of the object O2 is excluded.

there It will first check if the one ahead Object O1 and O2 set and adapted Teilfernlichtverteilungen TFVli, TFVre an optimal illumination of the front of the vehicle F located Generate routing or whether the Teilfernlichtverteilungen TFVli and / or TFVre should remain activated or, for example due to a closed town and / or shortfall the limit value of the speed of the vehicle F disabled shall be.

to Deactivation of the sub-beam distribution TFVli and / or TFVre becomes with a given, slow rate of change from the split-beam distribution TFVli and / or TFVre to the low beam distribution AVli and / or AVre switched. It is initially with slow speed by means of the shutter the illumination characteristics changed. Parallel to this, the LWR-Stellers the beam range of the position of the dynamic headlamp leveling plus the correction value transferred to the position of the dynamic beam range. The amendment or adjustment speed for the headlight range is in the kind chosen that the objective of the lighting range coinciding with the objective of the illumination characteristics of Low beam distribution AVli and / or AVre is achieved. It will continue the Kurvenlichtsteller driven in such a way that after the Reaching the target position of the bend lighting device with its own, slow speed, the positioning of the bend lighting from the split-beam distribution TFVli and / or TFVre to the low-beam distribution AVli and / or AVre is performed. After reaching The target position of the curve lighting device remains the values of the illumination characteristic and the headlight range.

The spontaneous, abrupt change is particularly necessary when suddenly road users appear in side areas of the vehicle F. Due to the construction of the headlights p2 . 2re and the curve light adjuster, it is then not possible to turn the light cone of the Teilfernlichtverteilung TFVli and / or TFVre far enough to the horizontal tilt angle or the required light distribution is not desirable.

Around to avoid dazzling the road users in the side area the rate of change is adjusted so that the spontaneous, abrupt change between the sub-beam distribution TFVli and / or TFVre and the low-beam distribution AVli and / or AVre is carried out.

there the illumination characteristic by means of the shutter with a constantly given high speed or in a short Duration of the target position of the low-beam distribution AVli and / or AVre set. At the same time, the lighting range of the position the dynamic headlamp leveling plus the correction value on the Position of the dynamic lighting range transferred. The Adjustment speed for the LWR actuator is again chosen in the way that the target position of the beam range achieved at the same time as the target position of the illumination characteristic is. The curve light position remains during the dimming to persist in the current situation or will already during the Dimming with another, constant, medium speed changed. After changing the illumination characteristic and the headlight range is the pivoting of the bend lighting up completed to achieve the goal.

1

sensor

p2, 2re

headlights

AVLI, AVRE

low beam

F

vehicle

FVli, FVre

Beam light distribution

O1, O2

object

TFVli, TFVre

Part beam distribution

_li ω _tfl ⁰

inner Part high beam angle

ω _obj

angle

ω _Kl ^imax

inner maximum swing angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102008014182 [0002, 0035]

Claims (15)

Method for driving light control of a vehicle (F) with at least one swiveling headlight ( p2 . 2re ), in which a low beam distribution (AVli, AVre), a Teilfernlichtverteilung (TFVli, TFVre) and / or a high beam distribution (FVli, FVre) are set as light distributions, characterized in that for adjusting one or more light distributions, a headlight range, a Ausleuchtcharakteristik and / or a horizontal tilt angle of the at least one headlamp ( p2 . 2re ) are controlled such that a rate of change in the transition of one of the light distributions to another, in particular from the low-beam distribution (AVli, AVre) to the divided high beam distribution (TFVli, TFVre) and / or to the high beam distribution (FVli, FVre) or vice versa, variably adjusted becomes. Method according to claim 1, characterized in that that the rate of change is set automatically becomes. Method according to claim 1 or 2, characterized that the rate of change as a characteristic function depending on a speed of the vehicle (F), of detected objects (O1, O2) in an environment of the vehicle (F) and / or environmental parameters is specified. Method according to one of the preceding claims, characterized in that the rate of change is set so that a continuous transition or an abrupt switching between the light distributions is generated. Method according to one of the preceding claims, characterized in that the rate of change by means of a control of a headlight actuator and / or lamps of the headlight ( p2 . 2re ), wherein a speed of the headlight actuator, a switching on and / or off and / or a brightness of the lighting means are controlled and / or intermediate steps are set in the adjustment of the light distributions. Method according to one of the preceding claims, characterized in that the headlight range, the Ausleuchtcharakteristik and / or the horizontal tilt angle of a single headlamp ( p2 . 2re ) are controlled simultaneously. Method according to one of the preceding claims, characterized in that the headlight range, the Ausleuchtcharakteristik and / or the horizontal tilt angle in dependence set from a position of the detected objects (O1, O2) be that one for the objects (O1, O2) glare-free space is produced. Method according to one of the preceding claims, characterized in that the headlight range, the Ausleuchtcharakteristik and / or the horizontal tilt angle are set in such a way that the split-beam distribution (TFVli, TFVre) and / or the high beam distribution (FVli, FVre) maximum up to edges of the detected object (O1, O2) be panned. Method according to one of the preceding claims, characterized in that it is detected whether the vehicle (F) moved in an area with street lighting and that in this case of the high beam distribution (FVli, FVre) on the split-beam distribution (TFVli, TFVre) or low-beam distribution (AVli, AVre) is switched. Method according to one of the preceding claims, characterized in that in vehicles (F) having a plurality of headlamps ( p2 . 2re ) a coordinated driving light control of the individual headlights ( p2 . 2re ), wherein the rate of change between the low-beam distribution (AVli, AVre), the split-beam distribution (TFVli, TFVre) and / or the high-beam distribution (FVli, FVre) for each headlight ( p2 . 2re ) is chosen individually. Method according to claim 10, characterized in that that the rate of change is dependent a starting position of an actual light distribution and / or target position a desired light distribution is set. A method according to claim 11, characterized in that the switching between the respective actual light distributions and the desired light distributions of the headlights ( p2 . 2re ) are started simultaneously and the respective rates of change are selected such that the desired light distributions for the headlights ( p2 . 2re ) can be achieved simultaneously. Method according to one of the preceding claims, characterized in that by means of the headlight ( p2 . 2re ) or multiple headlights ( p2 . 2re ) a vertical bright-dark boundary at an inner high-beam _angle and / or inner high beam _angle ( _li ω _tfl ⁰ ) is generated. Method according to one of the preceding claims, characterized in that when cornering, the horizontal pivot angle for pivoting the headlight ( p2 . 2re ) depending on a speed of the vehicle (F) and a steering angle is set. Method according to one of the preceding claims, characterized in that the sequence of adjustment of the actuators for the beam range, the light distribution and for the orientation with their individual speeds of the Situation, the headlights and the starting and finishing positions depend.