JP6688008B2 - 車両用灯具 - Google Patents

車両用灯具 Download PDF

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Publication number
JP6688008B2
JP6688008B2 JP2015078686A JP2015078686A JP6688008B2 JP 6688008 B2 JP6688008 B2 JP 6688008B2 JP 2015078686 A JP2015078686 A JP 2015078686A JP 2015078686 A JP2015078686 A JP 2015078686A JP 6688008 B2 JP6688008 B2 JP 6688008B2
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Japan
Prior art keywords
light source
mode
semiconductor light
turn
level
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
JP2015078686A
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English (en)
Japanese (ja)
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JP2016199083A (ja
Inventor
知幸 市川
知幸 市川
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
Priority to JP2015078686A priority Critical patent/JP6688008B2/ja
Priority to US15/091,970 priority patent/US9840186B2/en
Priority to DE102016205796.0A priority patent/DE102016205796A1/de
Priority to CN201610214431.7A priority patent/CN106060997B/zh
Priority to FR1653047A priority patent/FR3034950B1/fr
Publication of JP2016199083A publication Critical patent/JP2016199083A/ja
Application granted granted Critical
Publication of JP6688008B2 publication Critical patent/JP6688008B2/ja
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    • 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]
    • 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
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1407—General lighting circuits comprising dimming circuits
    • 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
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
    • 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
    • H05B45/37—Converter 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • 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
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • 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
    • 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
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/32—Road surface or travel path
    • B60Q2300/322—Road curvature
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/41—Indexing codes relating to other road users or special conditions preceding vehicle
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
JP2015078686A 2015-04-07 2015-04-07 車両用灯具 Active JP6688008B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2015078686A JP6688008B2 (ja) 2015-04-07 2015-04-07 車両用灯具
US15/091,970 US9840186B2 (en) 2015-04-07 2016-04-06 Vehicle lamp
DE102016205796.0A DE102016205796A1 (de) 2015-04-07 2016-04-07 Fahrzeuglampe
CN201610214431.7A CN106060997B (zh) 2015-04-07 2016-04-07 车用灯具
FR1653047A FR3034950B1 (fr) 2015-04-07 2016-04-07 Lampe de vehicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015078686A JP6688008B2 (ja) 2015-04-07 2015-04-07 車両用灯具

Publications (2)

Publication Number Publication Date
JP2016199083A JP2016199083A (ja) 2016-12-01
JP6688008B2 true JP6688008B2 (ja) 2020-04-28

Family

ID=56986710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015078686A Active JP6688008B2 (ja) 2015-04-07 2015-04-07 車両用灯具

Country Status (5)

Country Link
US (1) US9840186B2 (enExample)
JP (1) JP6688008B2 (enExample)
CN (1) CN106060997B (enExample)
DE (1) DE102016205796A1 (enExample)
FR (1) FR3034950B1 (enExample)

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JP6782176B2 (ja) * 2017-01-23 2020-11-11 株式会社小糸製作所 点灯回路および車両用灯具
US10212772B2 (en) * 2017-01-30 2019-02-19 Shindengen Electric Manufacturing Co., Ltd. LED control device and control method of LED control device
US10420178B2 (en) 2017-03-14 2019-09-17 Infineon Technologies Ag Light emitting diode driver for load and supply changes
KR102094679B1 (ko) * 2017-04-11 2020-04-01 제트카베 그룹 게엠베하 차량용 레이저 헤드 램프 및 차량
JP6872413B2 (ja) * 2017-04-28 2021-05-19 株式会社小糸製作所 車両用灯具
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CN111071141A (zh) * 2019-12-27 2020-04-28 北京海纳川汽车部件股份有限公司 车辆及其前照灯的控制方法和控制装置
WO2021193830A1 (ja) * 2020-03-26 2021-09-30 株式会社小糸製作所 車両用灯具システムおよびそのコントローラ
CN113531476B (zh) * 2020-04-17 2025-05-20 华域视觉科技(上海)有限公司 远光照明装置、车灯及车辆
CN113531474B (zh) * 2020-04-17 2022-08-05 华域视觉科技(上海)有限公司 防炫目远光灯和车辆
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KR102435406B1 (ko) * 2020-07-03 2022-08-24 현대모비스 주식회사 카메라 내장 램프의 비동기 제어 시스템 및 방법
JP7542375B2 (ja) * 2020-09-23 2024-08-30 スタンレー電気株式会社 車両用灯具システム
FR3130012B1 (fr) * 2021-12-06 2024-03-29 Valeo Vision Procédé de commande d’allumage d'au moins une source lumineuse disposée à une extrémité d'au moins un guide de lumière
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Also Published As

Publication number Publication date
US9840186B2 (en) 2017-12-12
FR3034950B1 (fr) 2018-09-07
CN106060997A (zh) 2016-10-26
US20160297351A1 (en) 2016-10-13
CN106060997B (zh) 2018-02-09
JP2016199083A (ja) 2016-12-01
DE102016205796A1 (de) 2016-10-13
FR3034950A1 (enExample) 2016-10-14

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