FR3116409B1 - Systeme lumineux pour vehicule automobile - Google Patents

Systeme lumineux pour vehicule automobile Download PDF

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Publication number
FR3116409B1
FR3116409B1 FR2011843A FR2011843A FR3116409B1 FR 3116409 B1 FR3116409 B1 FR 3116409B1 FR 2011843 A FR2011843 A FR 2011843A FR 2011843 A FR2011843 A FR 2011843A FR 3116409 B1 FR3116409 B1 FR 3116409B1
Authority
FR
France
Prior art keywords
current
light source
duty cycle
lighting system
peak intensity
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
FR2011843A
Other languages
English (en)
Other versions
FR3116409A1 (fr
Inventor
Rabih Taleb
Idrissi Hafid El
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 FR2011843A priority Critical patent/FR3116409B1/fr
Priority to US18/252,116 priority patent/US20240003511A1/en
Priority to PCT/EP2021/082052 priority patent/WO2022106498A1/fr
Priority to EP21815981.2A priority patent/EP4248716A1/fr
Priority to JP2023530052A priority patent/JP2023550403A/ja
Priority to CN202180076833.4A priority patent/CN116530215A/zh
Publication of FR3116409A1 publication Critical patent/FR3116409A1/fr
Application granted granted Critical
Publication of FR3116409B1 publication Critical patent/FR3116409B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching 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]
    • H05B45/10—Controlling the intensity of the light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0088—Details of electrical connections
    • 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
    • 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L’invention propose un système lumineux (2) comprenant : une première source lumineuse (12.1) ; une deuxième source lumineuse (12.2) ; un premier dispositif de pilotage (20.1) configuré pour fournir un premier courant (C1) de type à modulation de largeur d’impulsion pour l’alimentation de la première source lumineuse, ledit premier courant comprenant une première intensité de crête (Ic1) et un premier rapport cyclique ; optionnellement un deuxième dispositif de pilotage (20.2) configuré pour fournir un deuxième courant (C2), de type à modulation de largeur d’impulsion, pour l’alimentation de la deuxième source lumineuse (20.2) ; ledit deuxième courant (C2) comprenant une deuxième intensité de crête (Ic2) et un deuxième rapport cyclique ; un module de commande (30) générant un premier signal de commande et un deuxième signal de commande pour le premier dispositif de pilotage et le deuxième dispositif de pilotage. La première intensité de crête est inférieure à la deuxième intensité crête, et le premier rapport cyclique est supérieur au deuxième rapport cyclique. Figure pour l’abrégé : Fig. 1
FR2011843A 2020-11-18 2020-11-18 Systeme lumineux pour vehicule automobile Active FR3116409B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR2011843A FR3116409B1 (fr) 2020-11-18 2020-11-18 Systeme lumineux pour vehicule automobile
US18/252,116 US20240003511A1 (en) 2020-11-18 2021-11-17 Light system for a motor vehicle
PCT/EP2021/082052 WO2022106498A1 (fr) 2020-11-18 2021-11-17 Systeme lumineux pour vehicule automobile
EP21815981.2A EP4248716A1 (fr) 2020-11-18 2021-11-17 Système lumineux pour véhicule automobile
JP2023530052A JP2023550403A (ja) 2020-11-18 2021-11-17 自動車用の光システム
CN202180076833.4A CN116530215A (zh) 2020-11-18 2021-11-17 用于机动车辆的灯系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2011843A FR3116409B1 (fr) 2020-11-18 2020-11-18 Systeme lumineux pour vehicule automobile
FR2011843 2020-11-18

Publications (2)

Publication Number Publication Date
FR3116409A1 FR3116409A1 (fr) 2022-05-20
FR3116409B1 true FR3116409B1 (fr) 2022-12-16

Family

ID=74347300

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2011843A Active FR3116409B1 (fr) 2020-11-18 2020-11-18 Systeme lumineux pour vehicule automobile

Country Status (6)

Country Link
US (1) US20240003511A1 (fr)
EP (1) EP4248716A1 (fr)
JP (1) JP2023550403A (fr)
CN (1) CN116530215A (fr)
FR (1) FR3116409B1 (fr)
WO (1) WO2022106498A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160017841A (ko) * 2014-08-06 2016-02-17 삼성전자주식회사 Led 구동 장치 및 조명 장치
JP2016164996A (ja) * 2016-04-01 2016-09-08 キヤノン株式会社 発光制御装置及びその制御方法
FR3056071B1 (fr) * 2016-09-15 2020-11-13 Valeo Vision Procede calibrage de l'intensite d'un courant electrique d'alimentation de sources lumineuses electroluminescentes pour obtenir une lumiere uniforme
FR3059817B1 (fr) * 2016-12-02 2019-07-26 Faurecia Interieur Industrie Module d'affichage du type lcd pour un habitacle de vehicule et habitacle de vehicule comprenant un tel module
FR3063198B1 (fr) * 2017-02-23 2019-04-19 Valeo Vision Procede et module de commande pour sources lumineuses a flux lumineux pulse d'un vehicule automobile

Also Published As

Publication number Publication date
US20240003511A1 (en) 2024-01-04
EP4248716A1 (fr) 2023-09-27
CN116530215A (zh) 2023-08-01
FR3116409A1 (fr) 2022-05-20
JP2023550403A (ja) 2023-12-01
WO2022106498A1 (fr) 2022-05-27

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