FR3097937B1 - Dispositif et procede de controle d'un ensemble de sources lumineuses pour vehicule automobile - Google Patents

Dispositif et procede de controle d'un ensemble de sources lumineuses pour vehicule automobile Download PDF

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Publication number
FR3097937B1
FR3097937B1 FR1907119A FR1907119A FR3097937B1 FR 3097937 B1 FR3097937 B1 FR 3097937B1 FR 1907119 A FR1907119 A FR 1907119A FR 1907119 A FR1907119 A FR 1907119A FR 3097937 B1 FR3097937 B1 FR 3097937B1
Authority
FR
France
Prior art keywords
emitting diode
pixelated light
control
light sources
motor vehicles
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.)
Active
Application number
FR1907119A
Other languages
English (en)
Other versions
FR3097937A1 (fr
Inventor
Thomas Giraud-Sauveur
Marjaneh Kazemi
Guillaume Zante
Olivier Valorge
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
Priority to FR1907119A priority Critical patent/FR3097937B1/fr
Priority to US17/623,116 priority patent/US12063723B2/en
Priority to CN202080047628.0A priority patent/CN114271029A/zh
Priority to PCT/EP2020/068308 priority patent/WO2020260718A1/fr
Priority to JP2021577826A priority patent/JP7278434B2/ja
Priority to EP20734244.5A priority patent/EP3991520A1/fr
Publication of FR3097937A1 publication Critical patent/FR3097937A1/fr
Application granted granted Critical
Publication of FR3097937B1 publication Critical patent/FR3097937B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • 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
    • H05B45/18—Controlling the intensity of the light using temperature feedback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Led Devices (AREA)
  • Electroluminescent Light Sources (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un dispositif (15) et un procédé de contrôle d'une diode électroluminescente pixellisée (1) destinée à projeter, à partir d'un véhicule automobile, une image prédéfinie, la diode électroluminescente pixellisée (1) comprenant une pluralité de diodes élémentaires (10a, 10b, … 10i, … 10n) alimentées par un courant continu commun (20) et respectivement pilotées par un signal (30a, 30b, … 30i, … 30n) de modulation de largeur d’impulsion du courant continu commun d'alimentation (20), la diode électroluminescente pixellisée (1) comprenant un capteur de température (13, 13a, … 13n), et le dispositif de contrôle (15) étant configuré pour modifier le signal de modulation de largeur d'impulsion en fonction d'une température (T) de la diode électroluminescente pixellisée (1) et/ou d’une ou plusieurs diodes élémentaires (10a, 10b, … 10i, … 10n). Figure pour l’abrégé : (Fig. 2))
FR1907119A 2019-06-28 2019-06-28 Dispositif et procede de controle d'un ensemble de sources lumineuses pour vehicule automobile Active FR3097937B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR1907119A FR3097937B1 (fr) 2019-06-28 2019-06-28 Dispositif et procede de controle d'un ensemble de sources lumineuses pour vehicule automobile
US17/623,116 US12063723B2 (en) 2019-06-28 2020-06-29 Device and method for controlling a set of light sources for a motor vehicle light assembly
CN202080047628.0A CN114271029A (zh) 2019-06-28 2020-06-29 用于控制机动车辆的照明组件的光源集合的设备和方法
PCT/EP2020/068308 WO2020260718A1 (fr) 2019-06-28 2020-06-29 Dispositif et procede de controle d'un ensemble de sources lumineuses pour ensemble lumineux de vehicule automobile
JP2021577826A JP7278434B2 (ja) 2019-06-28 2020-06-29 動力車両照明アセンブリのための光源のセットを制御するための装置及び方法
EP20734244.5A EP3991520A1 (fr) 2019-06-28 2020-06-29 Dispositif et procede de controle d'un ensemble de sources lumineuses pour ensemble lumineux de vehicule automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1907119 2019-06-28
FR1907119A FR3097937B1 (fr) 2019-06-28 2019-06-28 Dispositif et procede de controle d'un ensemble de sources lumineuses pour vehicule automobile

Publications (2)

Publication Number Publication Date
FR3097937A1 FR3097937A1 (fr) 2021-01-01
FR3097937B1 true FR3097937B1 (fr) 2021-09-03

Family

ID=67742845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1907119A Active FR3097937B1 (fr) 2019-06-28 2019-06-28 Dispositif et procede de controle d'un ensemble de sources lumineuses pour vehicule automobile

Country Status (6)

Country Link
US (1) US12063723B2 (fr)
EP (1) EP3991520A1 (fr)
JP (1) JP7278434B2 (fr)
CN (1) CN114271029A (fr)
FR (1) FR3097937B1 (fr)
WO (1) WO2020260718A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021201550A1 (de) * 2021-02-18 2022-08-18 Psa Automobiles Sa Verfahren zum Betreiben eines hochauflösenden Projektionsscheinwerfers und Projektionsscheinwerfersystem für ein Kraftfahrzeug

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6841947B2 (en) * 2002-05-14 2005-01-11 Garmin At, Inc. Systems and methods for controlling brightness of an avionics display
US7067995B2 (en) * 2003-01-15 2006-06-27 Luminator, Llc LED lighting system
EP1662583B1 (fr) * 2003-07-28 2018-11-07 Nichia Corporation Appareil electroluminescent, affichage a diodes electroluminescentes, appareil electroluminescent a diodes electroluminescentes et procede de commande d'un appareil electroluminescent
CN101292574B (zh) * 2005-08-17 2012-12-26 皇家飞利浦电子股份有限公司 数字控制的照明器系统
US7710050B2 (en) * 2005-11-17 2010-05-04 Magna International Inc Series connected power supply for semiconductor-based vehicle lighting systems
KR100758987B1 (ko) * 2006-09-26 2007-09-17 삼성전자주식회사 Ｌｅｄ 발광 장치 및 그 제어 방법
DE102007044556A1 (de) * 2007-09-07 2009-03-12 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Verfahren und Vorrichtung zur Einstellung der farb- oder fotometrischen Eigenschaften einer LED-Beleuchtungseinrichtung
KR101494320B1 (ko) 2007-10-05 2015-02-23 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 갖는 표시장치
TW201247016A (en) * 2011-04-12 2012-11-16 Koninkl Philips Electronics Nv Apparatus, system and method for pulse width modulated lighting control
EP2575411B1 (fr) 2011-09-27 2018-07-25 Infineon Technologies AG Commande de DEL dotée de compensation de décalage de couleur par induction thermique
CN203072209U (zh) 2012-12-24 2013-07-17 常州星宇车灯股份有限公司 Led光通量自动调节装置
RU2660801C2 (ru) 2013-05-03 2018-07-10 Филипс Лайтинг Холдинг Б.В. Светодиодная осветительная цепь
CN103582257A (zh) * 2013-11-03 2014-02-12 胡军 Led驱动装置及方法
US9894733B1 (en) * 2016-12-22 2018-02-13 Nxp B.V. Standalone light emitting diode (LED) controller

Also Published As

Publication number Publication date
US20220264714A1 (en) 2022-08-18
JP7278434B2 (ja) 2023-05-19
EP3991520A1 (fr) 2022-05-04
FR3097937A1 (fr) 2021-01-01
JP2022538336A (ja) 2022-09-01
US12063723B2 (en) 2024-08-13
WO2020260718A1 (fr) 2020-12-30
CN114271029A (zh) 2022-04-01

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