EP4637271A4 - Fahrzeuglampensteuervorrichtung - Google Patents

Fahrzeuglampensteuervorrichtung

Info

Publication number
EP4637271A4
EP4637271A4 EP23903213.9A EP23903213A EP4637271A4 EP 4637271 A4 EP4637271 A4 EP 4637271A4 EP 23903213 A EP23903213 A EP 23903213A EP 4637271 A4 EP4637271 A4 EP 4637271A4
Authority
EP
European Patent Office
Prior art keywords
control device
lamp control
vehicle lamp
vehicle
lamp
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.)
Pending
Application number
EP23903213.9A
Other languages
English (en)
French (fr)
Other versions
EP4637271A1 (de
Inventor
Norito Takahashi
Hiroyasu Kawai
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
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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of EP4637271A1 publication Critical patent/EP4637271A1/de
Publication of EP4637271A4 publication Critical patent/EP4637271A4/de
Pending legal-status Critical Current

Links

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]
    • H05B45/30—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
    • H05B45/395—Linear regulators
    • 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
    • H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series array of LEDs
    • 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
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • 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
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series
EP23903213.9A 2022-12-14 2023-11-20 Fahrzeuglampensteuervorrichtung Pending EP4637271A4 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2022199513 2022-12-14
JP2022199512 2022-12-14
JP2022199511 2022-12-14
PCT/JP2023/041576 WO2024127916A1 (ja) 2022-12-14 2023-11-20 車両用灯具制御装置

Publications (2)

Publication Number Publication Date
EP4637271A1 EP4637271A1 (de) 2025-10-22
EP4637271A4 true EP4637271A4 (de) 2026-03-25

Family

ID=91485601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23903213.9A Pending EP4637271A4 (de) 2022-12-14 2023-11-20 Fahrzeuglampensteuervorrichtung

Country Status (4)

Country Link
EP (1) EP4637271A4 (de)
JP (1) JPWO2024127916A1 (de)
CN (1) CN120380841A (de)
WO (1) WO2024127916A1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004039288A (ja) * 2002-06-28 2004-02-05 Matsushita Electric Works Ltd 照明装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005041309A (ja) * 2003-07-25 2005-02-17 Ichikoh Ind Ltd 車両用灯具の電子発光素子駆動回路
JP2009246074A (ja) * 2008-03-31 2009-10-22 Nippon Seiki Co Ltd 車両用表示装置
JP7544481B2 (ja) 2017-11-14 2024-09-03 株式会社小糸製作所 車両用灯具およびその点灯回路
JP7047444B2 (ja) 2018-02-16 2022-04-05 トヨタ自動車株式会社 車両制御装置、電子制御ユニット、制御方法、制御プログラム、車両、ｏｔａマスタ、システム及びセンタ
JP7507047B2 (ja) 2020-09-16 2024-06-27 株式会社小糸製作所 ランプコントロールモジュール、車両用灯具、信号処理装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004039288A (ja) * 2002-06-28 2004-02-05 Matsushita Electric Works Ltd 照明装置

Also Published As

Publication number Publication date
EP4637271A1 (de) 2025-10-22
CN120380841A (zh) 2025-07-25
JPWO2024127916A1 (de) 2024-06-20
WO2024127916A1 (ja) 2024-06-20

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Ipc: H05B 45/54 20200101AFI20260217BHEP

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