EP1848249A1 - LED-Bedienvorrichtung für einen Fahrzeugscheinwerfer - Google Patents

LED-Bedienvorrichtung für einen Fahrzeugscheinwerfer Download PDF

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Publication number
EP1848249A1
EP1848249A1 EP07290462A EP07290462A EP1848249A1 EP 1848249 A1 EP1848249 A1 EP 1848249A1 EP 07290462 A EP07290462 A EP 07290462A EP 07290462 A EP07290462 A EP 07290462A EP 1848249 A1 EP1848249 A1 EP 1848249A1
Authority
EP
European Patent Office
Prior art keywords
module
lighting module
current
signature
diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07290462A
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English (en)
French (fr)
Inventor
Loic Flandre
Benjamin Touzet
Stephane Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1848249A1 publication Critical patent/EP1848249A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]

Definitions

  • the present invention relates to a control device for diode lamps for a vehicle light device, said diode lamp belonging to a predefined range of diode lamps. It also relates to a diode lamp lighting module, a diode lamp control module disposed in such a control device, and a lamp device incorporating such a control device.
  • Vehicle light device means a lighting or signaling device.
  • the current control (the current reference and the injected current) is sensitive to electromagnetic disturbances, which leads to a decrease in the accuracy of the reference current and the losses in the current applied to the diode lamps resulting in operation of the degraded diode lamps.
  • the resistors are arranged on the electronic board connected to the lighting module and combined with one another by a plurality of connections connecting a plurality of connectors in order to create the appropriate currents for the range of lamps. diode present in the lighting module.
  • the present invention provides a remedy for these disadvantages of the state of the art.
  • the receiving means also make it possible to convert the transmitted single signature into a reference voltage value intended to be used by the current adjustment means
  • the current adjustment means comprise a voltage-current converter and a comparator.
  • the current adjustment means make it possible to supply a current to a transmission device of the control module intended to transmit the unique signature.
  • the invention relates to a vehicle fire device incorporating a control device according to the preceding characteristics, and in which a control module is located at the back of the lights device while a light module is located at the front.
  • the electronic card and more particularly the control module no longer needs to be configured specifically for a lighting module. (It will be standard), and there is no more annoying electromagnetic disturbances since there is no more resistance combined to provide the adequate current or feedback loop current.
  • FIG. 1 there is shown schematically a vehicle light equipped with a control device 12 according to the invention.
  • vehicle light means, in particular, a lighting or signaling device.
  • the halogen lamp serves as daylight
  • the diode lamp serves as nighttime illumination.
  • the diode lamps of the lighting module are in non-limiting embodiments, light emitting diodes (LEDs), super-luminescent diodes (SLDs) or diode lasers, or organic light-emitting diodes ( OLED).
  • LEDs light emitting diodes
  • SLDs super-luminescent diodes
  • OLED organic light-emitting diodes
  • a diode lamp has one or more diodes.
  • the projector 1 in known manner, is connected to a control unit (not shown) of an on-board network 2 of the vehicle via the supply beam 3.
  • control device 12 may comprise a plurality of lighting modules 10, if, for example, there are a plurality of predefined ranges of diode lamps.
  • a range can be used for one or more colors of LEDs, colors such as white, green, blue, red ... etc.
  • the control device 12 is shown in a nonlimiting manner in the example of FIG. 2.
  • the unique signature S is a frequency analog signal, and more specifically a sinusoidal signal
  • the transmission device 102 is, for example, a quartz type oscillator. Thanks to such a frequency signal, the electromagnetic disturbances that could be generated on the communication beam 6 are avoided.
  • the range R there will be a sinusoidal signal of frequency 1Khz
  • the range S it will be 2 KHz
  • the U range 3khz.
  • the unique signature S is a digital signal.
  • it is a PWM pulse width modulation signal called an english language (“Pulse Width Modulation")
  • the associated transmission device 102 is, for example, a microcontroller.
  • any other digital signal such as for example a binary signal associated with a range R, S or U for example, a signal which will be coded for example in ASCII.
  • Such a microcontroller 102 comprises a non-volatile memory writable or rewritable, type EEPROM for example a FLASH memory, so as to program the unique signature S associated with each of the different preset ranges of diode lamps 101.
  • a PWM signal is a fixed frequency signal and the duty cycle corresponds to the high time of the digital signal with respect to the period of said PWM signal.
  • single signature S is not limiting, and one could also have a combination of signals (for example a combination of PWM signals) to establish this unique signature S.
  • the lighting module 10 further comprises a temperature sensor 103.
  • This sensor will make it possible to adjust the current injected into the lighting module 10 as a function of the temperature of the lighting module. so that the lighting module does not overheat and thus to obtain a more reliable electronics.
  • the single signature S will be chosen to be transmitted not only according to the predefined range of the LEDs of the lighting module 10, but also as a function of the temperature of the lighting module 10 as follows.
  • the temperature sensor 103 is disposed on the hottest point of the lighting module 10.
  • the control module according to this second embodiment can be used in the case of the example of a single signature in the form of a PWM signal calculated as a function of the current flow associated with the range of diode lamps of the lighting module. desired.
  • the microcontroller 102 of the lighting module will be programmed to transmit such PWM signals.
  • the direct single-link link will be used, whereas for sending a single ASCII coded bit-type signature, it will be possible to use a LIN, SPI or CAN link.
  • the lighting module 10 is associated with the pilot lights of the vehicle. It can of course be associated with traffic lights or others.
  • the lighting module 10 is energized as well as the transmission device 102 with a first adapted current level, for example, here a current lower than the lowest and adapted diode lamp range also for the voltage setting of the microcontroller.
  • a first adapted current level for example, here a current lower than the lowest and adapted diode lamp range also for the voltage setting of the microcontroller.
  • the lighting module is turned on manually, for example when the user of the vehicle decides to light his pilot lights and activates the button on the dashboard of the vehicle provided. for this purpose, either automatically when automatic lighting of the night lights is provided when we pass under a tunnel or that the evening falls for example.
  • the transmission device 102 sends the unique signature S associated with the range of diode lamps of the lighting module 10 to the control module 11 via the communication link 61 provided for this purpose.
  • control module 11 as a function of the unique signature S received, then provides a second current level I corresponding to the range of diode lamps present via the communication link 62.
  • the transmission device 102 makes it possible, in the aforementioned examples, to provide a unique signature S associated with the range of diode lamps of the lighting module 10 or optionally taking into account a given temperature, a unique signature adapted .
  • this transmission device 102 for example, when it is a microcontroller, can also be used for other functions, in non-limiting examples, such as information for performing an LED multiplexing or a function diagnostic.
  • the transmission device 102 will emit in addition to the unique signature S, for example, CONF information on the configuration to adopt LEDs according to the desired functions. That is to say, information that the first LEDs will have to be powered periodically to perform the flashing function, while the second LEDs will always have to be supplied with current continuously to perform the signaling function.
  • the invention has the following advantages.
  • BCI Bulk Current Injection
  • SR beam communication wire
  • a control module can easily be used with any lighting module of lamps with different diode lamps and a lighting module can be easily used with any control module because we know exactly the current that must be sent to the module lighting thanks to the unique signature of the lighting module.
  • it facilitates the pairing between a lighting module and its associated control module.

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP07290462A 2006-04-20 2007-04-13 LED-Bedienvorrichtung für einen Fahrzeugscheinwerfer Withdrawn EP1848249A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0603521A FR2900304B1 (fr) 2006-04-20 2006-04-20 Dispositif de commande de led pour un feu de vehicule

Publications (1)

Publication Number Publication Date
EP1848249A1 true EP1848249A1 (de) 2007-10-24

Family

ID=37451119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07290462A Withdrawn EP1848249A1 (de) 2006-04-20 2007-04-13 LED-Bedienvorrichtung für einen Fahrzeugscheinwerfer

Country Status (4)

Country Link
US (2) US7871187B2 (de)
EP (1) EP1848249A1 (de)
JP (1) JP5085969B2 (de)
FR (1) FR2900304B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2944669A1 (fr) * 2009-04-21 2010-10-22 Peugeot Citroen Automobiles Sa Procede de pilotage de l'alimentation d'une lampe de bloc optique de vehicule
EP2387290A1 (de) * 2010-05-12 2011-11-16 Valeo Vision Modul zur Steuerung der Stromversorgung von LED-Gruppen
FR2996403A1 (fr) * 2012-09-28 2014-04-04 Renault Sa Procede de regulation de la tension aux bornes d'un ensemble de diodes d'eclairage d'un projecteur de vehicule, et vehicule correspondant

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2900304B1 (fr) * 2006-04-20 2012-03-02 Valeo Vision Dispositif de commande de led pour un feu de vehicule
DE102008018808A1 (de) 2008-04-15 2009-10-22 Ledon Lighting Jennersdorf Gmbh Mikrocontroller optimierte Pulsweitenmodulation-(PWM)-Ansteuerung einer Licht emittierenden Diode(LED)
RU2518503C2 (ru) 2008-09-09 2014-06-10 Конинклейке Филипс Электроникс Н.В. Oled устройство освещения с маркировочным элементом
FR2944637B1 (fr) * 2009-04-21 2011-05-06 Peugeot Citroen Automobiles Sa Dispositif et procede de gestion du fonctionnement d'organe(s) electrique(s) remplace(s) dans un systeme
US8373352B2 (en) * 2009-06-15 2013-02-12 Topanga Technologies, Inc. Electrodeless plasma lamp array
DE102009047290A1 (de) * 2009-11-30 2011-06-09 Osram Gesellschaft mit beschränkter Haftung Verfahren zur Einstellung eines elektronischen Vorschaltgeräts, elektronisches Vorschaltgerät und Abgleicheinheit
FR2988334B1 (fr) * 2012-03-26 2015-07-10 Valeo Vision Procede et dispositif d'aide a la conduite diurne des vehicules automobiles
EP2663161A1 (de) * 2012-05-08 2013-11-13 Koninklijke Philips N.V. LED-Beleuchtungssystem
DE102012224349A1 (de) * 2012-06-25 2014-01-02 Osram Gmbh Beleuchtungsanlage mit einer Schnittstelle aufweisend ein Netzgerät und mindestens ein Lichtquellenmodul
FR2997602B1 (fr) * 2012-10-26 2017-09-15 Valeo Illuminacion Dispositif de connexion electrique d'un projecteur
DE102015222504A1 (de) 2015-11-16 2017-05-18 Bayerische Motoren Werke Aktiengesellschaft Beleuchtungsvorrichtung für ein Kraftfahrzeug
CN106564422A (zh) * 2016-09-29 2017-04-19 姚晓宁 一种自动切换汽车车灯远近光装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319440A1 (de) * 1987-12-04 1989-06-07 Jean-Luc Finzel Einheit für Schutz, Signalgebung und Lokalisierung der Betriebsfehler von leuchtenden Einheiten bei zonengeteiltem Lichtnetz
EP0430836A1 (de) * 1989-11-27 1991-06-05 Ets. AUGIER S.A. Fernsteuerungsvorrichtung mit Trägerfrequenz
US6204615B1 (en) * 1997-02-21 2001-03-20 Intelilite, L.L.C. Intelligent outdoor lighting control system
US20020047628A1 (en) * 1997-08-26 2002-04-25 Frederick Morgan Methods and apparatus for controlling devices in a networked lighting system
EP1244334A2 (de) * 2001-03-22 2002-09-25 Hella KG Hueck & Co. Schaltungsanordnung für eine LED Leuchte
EP1379108A1 (de) * 2002-07-04 2004-01-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LED Versorgungs- und Identifikationseinheit
EP1411750A2 (de) * 2002-10-16 2004-04-21 CCS Inc. Stromversorgungssystem für eine Lumineszenzdiodeneinheit
EP1480497A2 (de) * 2003-05-20 2004-11-24 Gitronica S.r.l. System zur Fernsteuerung von Leuchtvorrichtungen
US20060028155A1 (en) * 2004-08-09 2006-02-09 Dialight Corporation Intelligent drive circuit for a light emitting diode (LED) light engine

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE19818621A1 (de) * 1998-04-25 1999-10-28 Mannesmann Vdo Ag Schaltungsanordnung zur Einstellung der Helligkeit stromgesteuerter Leuchtdioden zur Beleuchtung einer Anzeige
US6465962B1 (en) * 1999-10-25 2002-10-15 Sam Fu Vehicle auxiliary lamps installation kit
JP2003048480A (ja) * 2001-08-02 2003-02-18 Yokohama Rubber Co Ltd:The 車載電装機器制御システム
JP2004276739A (ja) * 2003-03-14 2004-10-07 Koito Mfg Co Ltd 車両用灯具
JP4509704B2 (ja) * 2004-09-03 2010-07-21 株式会社小糸製作所 車両用灯具の点灯制御回路
FR2900304B1 (fr) * 2006-04-20 2012-03-02 Valeo Vision Dispositif de commande de led pour un feu de vehicule
US20080055896A1 (en) * 2006-08-30 2008-03-06 David Charles Feldmeier Systems, devices, components and methods for controllably configuring the color of light emitted by an automotive LED illumination system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319440A1 (de) * 1987-12-04 1989-06-07 Jean-Luc Finzel Einheit für Schutz, Signalgebung und Lokalisierung der Betriebsfehler von leuchtenden Einheiten bei zonengeteiltem Lichtnetz
EP0430836A1 (de) * 1989-11-27 1991-06-05 Ets. AUGIER S.A. Fernsteuerungsvorrichtung mit Trägerfrequenz
US6204615B1 (en) * 1997-02-21 2001-03-20 Intelilite, L.L.C. Intelligent outdoor lighting control system
US20020047628A1 (en) * 1997-08-26 2002-04-25 Frederick Morgan Methods and apparatus for controlling devices in a networked lighting system
EP1244334A2 (de) * 2001-03-22 2002-09-25 Hella KG Hueck & Co. Schaltungsanordnung für eine LED Leuchte
EP1379108A1 (de) * 2002-07-04 2004-01-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LED Versorgungs- und Identifikationseinheit
EP1411750A2 (de) * 2002-10-16 2004-04-21 CCS Inc. Stromversorgungssystem für eine Lumineszenzdiodeneinheit
EP1480497A2 (de) * 2003-05-20 2004-11-24 Gitronica S.r.l. System zur Fernsteuerung von Leuchtvorrichtungen
US20060028155A1 (en) * 2004-08-09 2006-02-09 Dialight Corporation Intelligent drive circuit for a light emitting diode (LED) light engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2944669A1 (fr) * 2009-04-21 2010-10-22 Peugeot Citroen Automobiles Sa Procede de pilotage de l'alimentation d'une lampe de bloc optique de vehicule
EP2387290A1 (de) * 2010-05-12 2011-11-16 Valeo Vision Modul zur Steuerung der Stromversorgung von LED-Gruppen
FR2960119A1 (fr) * 2010-05-12 2011-11-18 Valeo Vision Module de pilotage d'alimentation d'ensembles de led
US8698427B2 (en) 2010-05-12 2014-04-15 Valeo Vision Module to control the supply to LED assemblies
FR2996403A1 (fr) * 2012-09-28 2014-04-04 Renault Sa Procede de regulation de la tension aux bornes d'un ensemble de diodes d'eclairage d'un projecteur de vehicule, et vehicule correspondant

Also Published As

Publication number Publication date
FR2900304B1 (fr) 2012-03-02
FR2900304A1 (fr) 2007-10-26
JP2007290698A (ja) 2007-11-08
US20110163690A1 (en) 2011-07-07
US7871187B2 (en) 2011-01-18
US20070247305A1 (en) 2007-10-25
US8419243B2 (en) 2013-04-16
JP5085969B2 (ja) 2012-11-28

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