WO2019002115A1 - Procédé et dispositif permettant de vérifier le réglage des phares d'un véhicule - Google Patents

Procédé et dispositif permettant de vérifier le réglage des phares d'un véhicule Download PDF

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Publication number
WO2019002115A1
WO2019002115A1 PCT/EP2018/066712 EP2018066712W WO2019002115A1 WO 2019002115 A1 WO2019002115 A1 WO 2019002115A1 EP 2018066712 W EP2018066712 W EP 2018066712W WO 2019002115 A1 WO2019002115 A1 WO 2019002115A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
light
intensity distribution
reflecting object
image
Prior art date
Application number
PCT/EP2018/066712
Other languages
German (de)
English (en)
Inventor
Jonas KLABOUCH
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2019002115A1 publication Critical patent/WO2019002115A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/06—Testing the alignment of vehicle headlight devices
    • G01M11/064—Testing the alignment of vehicle headlight devices by using camera or other imaging system for the light analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/06—Testing the alignment of vehicle headlight devices
    • G01M11/068—Testing the alignment of vehicle headlight devices with part of the measurements done from inside the vehicle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes

Definitions

  • the invention relates to a method and a device for checking and correcting the headlamp setting of a vehicle, in particular of a motor vehicle.
  • the headlights of a vehicle In order to ensure correct light emission, the headlights of a vehicle, in particular a motor vehicle, must be set correctly during manufacture. The setting must be checked later on a regular basis, for example during the main inspection.
  • a Schweinwerfereinstellêt is positioned in front of the vehicle, which makes it possible to check the orientation and positioning of the headlights via an indicator.
  • screws or servomotors as they are common in modern Schweinwerfern, an exact adjustment is made.
  • a method for checking the headlamp setting of a vehicle comprises positioning the vehicle in front of a light-reflecting object; at least one
  • An apparatus for checking the headlamp setting of a vehicle has at least one image pickup device configured to pick up an image of light emitted from at least one headlamp of the vehicle and reflected by a light-reflecting object disposed in front of the vehicle, and an evaluation device , which is designed to determine the light intensity distribution in the recorded image and to compare it with a predetermined intensity distribution and to output a signal which is a measure of the difference between the recorded image
  • Image specific light intensity distribution and the given intensity distribution is.
  • the headlight adjustment can be checked faster, and human error in adjusting the
  • Headlamps can be prevented.
  • Embodiment of the invention can be carried out in particular to complete the vehicle production, as part of an inspection and / or within the scope of the statutory inspection. It can on the previously required space and cost intensive
  • the headlamp setting can be checked more frequently than before, for example every time you drive into a garage. This reduces the risk that the driver's vision will be limited in the dark due to incorrectly adjusted headlights and / or dazzling drivers of oncoming vehicles. Consequently, the driving safety is increased.
  • the level sensors prescribed in xenon, LED and laser pagers can be saved at the front and rear axle of the vehicle.
  • the device also comprises a light-reflecting object which can be arranged in front of the vehicle.
  • the light-reflecting object has as homogeneous as possible light-reflecting properties in order not to impair the process by different light-reflecting properties of the light-reflecting object.
  • the image of the light emitted by the at least one headlamp and reflected by the light-reflecting object is captured by an image pickup device that is part of a front panel detection system of the vehicle.
  • Front panel detection of the vehicle can be dispensed with an additional image pickup device. Automatic checking of the
  • Headlight adjustment can be realized at low cost.
  • the method comprises positioning the vehicle at a predetermined distance from the light-reflecting object in order to allow a defined intensity distribution of the light radiated onto the light-reflecting object.
  • the method comprises determining the distance of the vehicle from the light-reflecting object and taking it into account in the evaluation of the recorded image. In this way, the implementation of the method is further simplified because the vehicle, within certain limits, can be positioned at any distance in front of the light-reflecting object. In one embodiment, the method additionally comprises correcting the adjustment of the at least one headlamp until the signal, which is a measure of the difference between the light intensity distribution determined from the recorded image and the predetermined intensity distribution, falls below a predetermined limit value.
  • At least one adjustment device with an actuator may be provided on the at least one headlight, which enable the evaluation device, the adjustment of the headlight,
  • the headlamp setting can not only be checked automatically, but also automatically corrected. This further enhances usability and reliability.
  • Figure 1 shows a schematic plan view of a vehicle, which is equipped with a device for checking and correcting the headlight adjustment according to an embodiment of the invention
  • FIG. 2 shows a light-reflecting object with an example of a light intensity distribution generated by the headlights of a vehicle.
  • Figure 1 shows a schematic plan view of a vehicle 6, which is equipped with a device for checking the headlamp setting according to a
  • Embodiment of the invention is equipped.
  • the vehicle 6 is positioned at a distance d in front of a light-reflecting object 4, for example a light-reflecting wall 4.
  • the vehicle 6 has two headlights 8a, 8b, which are aligned with the light-reflecting object 4.
  • On each of the headlamps 8a, 8b are Einsteilvorraumen IIa - ld, for example actuators with servomotors, available, which make it possible to change the emission direction of each of the headlights 8a, 8b in the horizontal and vertical directions.
  • the vehicle 6 further has an image pickup device (camera) 10 which is aligned with the light-reflecting object 4.
  • the image recording device 10 is arranged on a center axis M of the vehicle 6 and aligned along the same. However, this is not mandatory as long as the image pickup device 10 is capable of taking an image of the light reflecting object 4.
  • evaluation device 12 is provided by the electrical lines 14 or wirelessly with the image pickup device 10 and the
  • the evaluation device 12 is designed to evaluate at least one image of the light intensity distribution 2a, 2b, which is generated by the headlamps 8a, 8b on the light-reflecting wall 4, taken by the image recording device 10 (see FIG. 2) and with a predetermined intensity distribution , which corresponds to an optimal headlamp setting, and to calculate a value which is a measure of the difference between the light intensity distribution 2a, 2b calculated from the picked-up image and the predetermined intensity distribution.
  • the evaluation device 12 is designed, in particular, to control the adjustment devices IIa-1d so that the light intensity distribution 2a, 2b on the light-reflecting wall 4 comes so close to the given intensity distribution that the value which measures the difference between the one taken from the latter Image calculated light intensity distribution 2a, 2b and the predetermined intensity distribution is below a predetermined limit.
  • an (optional) distance measuring device 9 is also provided, which makes it possible to determine the distance d between the vehicle 6 and the light-reflecting wall 4 and to assist in the evaluation of the at least one image taken by the image recording device 10 account.
  • a distance measuring device 9 for example, a distance radar of the vehicle 6 can be used.
  • Figure 2 shows in a schematic view the light-reflecting object 4, e.g. the light-reflecting wall 4, with two light intensity distributions 2a, 2b of the light emitted by the two headlights 8a, 8b.
  • the vertical distances ("heights") H1, H2 of the centers PI, P2, of the light intensity distributions 2a, 2b with respect to a predetermined reference line R and the horizontal distances Dl, D2 of the projected center line M of the vehicle 6, or the horizontal distance D between the centers PI, P2 of the two light intensity distributions 2a, 2b are determined.
  • the evaluation device 12 controls the adjustment devices 11a-lld correspondingly to the emission direction of the respective headlamp 8a, 8b and thus to minimize the deviations (differences) between the determined values and the predetermined reference values.
  • the reference values may be predetermined for a given distance d between the front of the vehicle 6 and the light-reflecting object. In this case, the vehicle 6 must be positioned at the predetermined distance d (see FIG. 1) in front of the light-reflecting object 4 in order to be able to carry out the method correctly.
  • a distance measuring device 9 which may be formed in the vehicle 6 or on the light-reflecting object 4, it can be checked whether the predetermined distance d has been observed before the process is started.
  • the reference values for different distances d between the front of the vehicle 6 and the light-reflecting object 4 may be predetermined, or the reference values may be calculated at a known distance d.
  • the vehicle 6 may be arranged within certain limits at any distance d in front of the light-reflecting object 4.
  • the distance d is determined by the distance measuring device 9 before the start of the method and the method is carried out with the reference values which are assigned to the distance thus determined or have been calculated for the distance thus determined.
  • the image recording device 10, the evaluation device 12 and / or the distance measuring device 9 may be part of a built-in vehicle 6 system for front panel detection.
  • the method can be carried out inexpensively solely by a corresponding control of the evaluation device 12, in particular by means of a suitable software, without the need for additional components.
  • a time measurement and / or a kilometer measurement can be provided in the evaluation device 12, which prompts the driver of the vehicle 4 after a predetermined time and / or mileage to position the vehicle 6 in front of a suitable light-reflecting object 4 and a method according to an embodiment of the invention
  • Device can be used to check the setting of the headlights 8a, 8b and indicate whether a manual correction of the adjustment of the headlights 8a, 8b is required.
  • the manual adjustment of the headlights 8a, 8b can then be checked by means of the device.
  • the light intensity distributions 2a, 2b are shown by way of example for dipped-beam light in FIG. 2, the person skilled in the art understands that a method according to an embodiment of the invention can also be applied to other types of light, such as e.g. High beam and the light of fog lights can be applied.
  • a method according to an embodiment of the invention can also be applied to other types of light, such as e.g. High beam and the light of fog lights can be applied.
  • For each type of light 12 own reference values can be stored in the evaluation device.
  • the method can also be started automatically as soon as the vehicle 6 with the headlamps 8a, 8b switched on is positioned in front of a suitable light-reflecting object 4, for example a garage wall or a garage door. In this way, a correct adjustment of the headlights 8a, 8b can be ensured permanently and continuously.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un procédé permettant de vérifier le réglage des phares d'un véhicule (6), comprenant les étapes consistant à placer le véhicule (6) devant un objet (4) réfléchissant la lumière, à activer au moins un phare (8a, 8b) du véhicule (6), à enregistrer une image de la lumière émise par le ou les phares (8a, 8b) et réfléchie par l'objet (4) réfléchissant la lumière, à déterminer la distribution (2a, 2b) de l'intensité lumineuse dans l'image enregistrée et à la comparer à une distribution d'intensité prédéfinie, et à produire un signal qui est une mesure de la différence entre la distribution (2a, 2b) de l'intensité lumineuse de l'image enregistrée et la distribution d'intensité prédéfinie.
PCT/EP2018/066712 2017-06-29 2018-06-22 Procédé et dispositif permettant de vérifier le réglage des phares d'un véhicule WO2019002115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017211055.4 2017-06-29
DE102017211055.4A DE102017211055A1 (de) 2017-06-29 2017-06-29 Verfahren und Vorrichtung zum Überprüfen der Scheinwerfereinstellung eines Fahrzeugs

Publications (1)

Publication Number Publication Date
WO2019002115A1 true WO2019002115A1 (fr) 2019-01-03

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PCT/EP2018/066712 WO2019002115A1 (fr) 2017-06-29 2018-06-22 Procédé et dispositif permettant de vérifier le réglage des phares d'un véhicule

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DE (1) DE102017211055A1 (fr)
WO (1) WO2019002115A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022105101U1 (de) 2022-09-09 2022-09-15 Helmholz & Pauli Gmbh Scheinwerfereinstellvorrichtung für Schienenfahrzeuge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2128590A1 (fr) * 2008-05-28 2009-12-02 Hella KGaA Hueck & Co. Procédé et dispositif de calibrage d'une limite claire-obscure horizontale produite par un phare frontal d'un véhicule
EP2305514A1 (fr) * 2008-06-04 2011-04-06 Koito Manufacturing Co., Ltd. Système de pointage de phare
DE102009047932A1 (de) * 2009-10-01 2011-04-07 Hella Kgaa Hueck & Co. Scheinwerfer für ein Kraftfahrzeug mit einer Einrichtung zur verbesserten Grundjustage
DE102010049047A1 (de) * 2010-10-18 2012-04-19 Hella Kgaa Hueck & Co. Verfahren und Vorrichtung zur Überprüfung eines lichttechnischen Fahrassistenzsystems
DE102011109440A1 (de) * 2010-10-16 2012-04-19 Daimler Ag Verfahren zum Justieren und/oder Kalibrieren zumindest eines Scheinwerfers eines Fahrzeugs
DE102011000316A1 (de) * 2011-01-25 2012-07-26 Hella Kgaa Hueck & Co. Verfahren für die Kalibrierung einer vertikalen Hell-Dunkel-Grenze sowie Fahrzeuge mit einer variierbaren Hell-Dunkel-Grenze
DE102014016116A1 (de) * 2014-10-30 2015-04-02 Daimler Ag Prüfvorrichtung und Verfahren zur Überprüfung einer lichttechnischen Einheit eines Fahrzeugs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2128590A1 (fr) * 2008-05-28 2009-12-02 Hella KGaA Hueck & Co. Procédé et dispositif de calibrage d'une limite claire-obscure horizontale produite par un phare frontal d'un véhicule
EP2305514A1 (fr) * 2008-06-04 2011-04-06 Koito Manufacturing Co., Ltd. Système de pointage de phare
DE102009047932A1 (de) * 2009-10-01 2011-04-07 Hella Kgaa Hueck & Co. Scheinwerfer für ein Kraftfahrzeug mit einer Einrichtung zur verbesserten Grundjustage
DE102011109440A1 (de) * 2010-10-16 2012-04-19 Daimler Ag Verfahren zum Justieren und/oder Kalibrieren zumindest eines Scheinwerfers eines Fahrzeugs
DE102010049047A1 (de) * 2010-10-18 2012-04-19 Hella Kgaa Hueck & Co. Verfahren und Vorrichtung zur Überprüfung eines lichttechnischen Fahrassistenzsystems
DE102011000316A1 (de) * 2011-01-25 2012-07-26 Hella Kgaa Hueck & Co. Verfahren für die Kalibrierung einer vertikalen Hell-Dunkel-Grenze sowie Fahrzeuge mit einer variierbaren Hell-Dunkel-Grenze
DE102014016116A1 (de) * 2014-10-30 2015-04-02 Daimler Ag Prüfvorrichtung und Verfahren zur Überprüfung einer lichttechnischen Einheit eines Fahrzeugs

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