FR3066875B1 - Dispositif de commande d'emission de lumiere et feu de vehicule - Google Patents

Dispositif de commande d'emission de lumiere et feu de vehicule Download PDF

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Publication number
FR3066875B1
FR3066875B1 FR1854343A FR1854343A FR3066875B1 FR 3066875 B1 FR3066875 B1 FR 3066875B1 FR 1854343 A FR1854343 A FR 1854343A FR 1854343 A FR1854343 A FR 1854343A FR 3066875 B1 FR3066875 B1 FR 3066875B1
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FR
France
Prior art keywords
voltage
function
control device
dimming
light emission
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
FR1854343A
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English (en)
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FR3066875A1 (fr
Inventor
Kotaro Matsui
Yasushi Noyori
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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Filing date
Publication date
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of FR3066875A1 publication Critical patent/FR3066875A1/fr
Application granted granted Critical
Publication of FR3066875B1 publication Critical patent/FR3066875B1/fr
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Classifications

    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/52—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating emergencies
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • 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
    • 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
    • H05B45/345—Current stabilisation; Maintaining constant current
    • 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
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
    • 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
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Led Devices (AREA)

Abstract

Un dispositif de commande d'émission de lumière (2) comporte une unité d'alimentation en courant (10) qui fournit un courant de commande (Idr) à un élément émetteur de lumière (31) qui réalise une émission de lumière d'une première fonction et une émission de lumière d'une seconde fonction, un régulateur (11) qui régule le courant de commande de manière à avoir une valeur de courant qui est fonction d'une tension de gradation, et un générateur de tension de gradation (20, 20A, 20B) qui engendre la tension de gradation. Le générateur de tension de gradation applique une tension, obtenue selon la valeur de résistance d'une résistance externe (Rc) connectée, à un tampon de tension (14), et régule la tension de sortie du tampon de tension selon qu'il faut réaliser une émission de lumière de l'une ou l'autre de la première fonction et de la seconde fonction, de manière à engendrer la tension de gradation.
FR1854343A 2017-05-24 2018-05-24 Dispositif de commande d'emission de lumiere et feu de vehicule Active FR3066875B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017102908A JP6867228B2 (ja) 2017-05-24 2017-05-24 発光駆動装置、車両用灯具
JP2017102908 2017-05-24

Publications (2)

Publication Number Publication Date
FR3066875A1 FR3066875A1 (fr) 2018-11-30
FR3066875B1 true FR3066875B1 (fr) 2021-03-12

Family

ID=64109266

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1854343A Active FR3066875B1 (fr) 2017-05-24 2018-05-24 Dispositif de commande d'emission de lumiere et feu de vehicule

Country Status (5)

Country Link
US (1) US10470273B2 (fr)
JP (1) JP6867228B2 (fr)
CN (1) CN108934108B (fr)
DE (1) DE102018208177B4 (fr)
FR (1) FR3066875B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT17913U1 (de) 2018-10-31 2023-07-15 Tridonic Gmbh & Co Kg Leuchtmittel-Betriebsgerät mit flexibel nutzbarem Steueranschluss
EP3672372A1 (fr) * 2018-12-21 2020-06-24 Valeo Vision Procédé pour maintenir la luminosité lors de la commutation de puissance d'entrée dans des dispositifs d'éclairage automobile
JP7161949B2 (ja) * 2019-01-24 2022-10-27 株式会社小糸製作所 車両用灯具
DE102019205641B4 (de) * 2019-04-17 2022-09-29 Audi Ag Leuchtvorrichtung für ein Kraftfahrzeug zum Erzeugen einer Lichtanimation
KR102108329B1 (ko) * 2019-09-23 2020-05-07 (주)선텍 출력 전원 변환 기능을 갖는 led 조명용 전원 공급 장치
KR20230020255A (ko) * 2021-08-03 2023-02-10 현대모비스 주식회사 온도 및 증폭된 전류에 기반하여 램프 회로를 제어하는 방법 및 이를 적용한 램프 회로

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4007096B2 (ja) * 2002-06-28 2007-11-14 松下電工株式会社 照明装置
WO2008068682A1 (fr) * 2006-12-04 2008-06-12 Nxp B.V. Dispositif électronique pour attaquer des diodes électroluminescentes
JP4799493B2 (ja) * 2007-06-29 2011-10-26 株式会社小糸製作所 車両用灯具
US7919928B2 (en) * 2008-05-05 2011-04-05 Micrel, Inc. Boost LED driver not using output capacitor and blocking diode
JP2010015752A (ja) * 2008-07-02 2010-01-21 Koito Mfg Co Ltd 車両用灯具の点灯制御装置
JP5301976B2 (ja) * 2008-12-11 2013-09-25 株式会社小糸製作所 車両用灯具の制御装置
JP5457684B2 (ja) * 2009-01-20 2014-04-02 株式会社小糸製作所 車両用灯具の点灯制御装置
DE102011113956A1 (de) 2011-09-20 2012-03-29 Daimler Ag Beleuchtungsvorrichtung, Fahrzeug mit einer Beleuchtungsvorrichtung und Verfahren zu dessen Betreiben
JP5464204B2 (ja) * 2011-12-28 2014-04-09 株式会社デンソー 発光駆動装置
CN103863172B (zh) 2012-12-12 2016-05-04 北汽福田汽车股份有限公司 一种车灯控制装置及具有其的汽车
JP6440061B2 (ja) * 2014-07-15 2018-12-19 パナソニックＩｐマネジメント株式会社 点灯装置、照明装置及び車両用前照灯装置
US9880780B2 (en) 2015-11-30 2018-01-30 Samsung Electronics Co., Ltd. Enhanced multi-stream operations
CN105430798A (zh) * 2015-12-14 2016-03-23 山西省交通科学研究院 一种机动车日间行车示廓灯***
CN205378269U (zh) * 2016-01-04 2016-07-06 江苏中科朗恩斯车辆科技有限公司 一种基于恒流控制的可调光led前照灯

Also Published As

Publication number Publication date
FR3066875A1 (fr) 2018-11-30
JP6867228B2 (ja) 2021-04-28
DE102018208177A1 (de) 2018-11-29
CN108934108B (zh) 2021-03-30
US20180343722A1 (en) 2018-11-29
DE102018208177B4 (de) 2024-04-11
JP2018198174A (ja) 2018-12-13
CN108934108A (zh) 2018-12-04
US10470273B2 (en) 2019-11-05

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