JP4931720B2 - 車両用灯具の点灯制御装置 - Google Patents
車両用灯具の点灯制御装置 Download PDFInfo
- Publication number
- JP4931720B2 JP4931720B2 JP2007194540A JP2007194540A JP4931720B2 JP 4931720 B2 JP4931720 B2 JP 4931720B2 JP 2007194540 A JP2007194540 A JP 2007194540A JP 2007194540 A JP2007194540 A JP 2007194540A JP 4931720 B2 JP4931720 B2 JP 4931720B2
- Authority
- JP
- Japan
- Prior art keywords
- light source
- power
- switching regulator
- semiconductor light
- leds
- 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.)
- Expired - Fee Related
Links
Images
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
- B60Q1/02—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
-
- 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
-
- 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
-
- 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
-
- 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]
-
- 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
- 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]
- H05B45/40—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
-
- 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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/11—Linear movements of the vehicle
- B60Q2300/112—Vehicle speed
-
- 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
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/14—Other vehicle conditions
- B60Q2300/146—Abnormalities, e.g. fail-safe
-
- 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
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/30—Daytime running lights [DRL], e.g. circuits or arrangements therefor
-
- 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
- H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Description
例えば、2台のスイッチングレギュレータ14、16でLED1〜LED8の電力(消費電力)を負担する場合、コスト・サイズ・熱(放熱)のことを考慮すると、LED1〜LED8の電力(消費電力)を2等分することが最も効率的である。
12 車両用灯具の点灯制御装置
14、16 スイッチングレギュレータ
18、20 制御回路
22 点消灯制御回路
24、26、28、30、32、34、36、38 シリーズレギュレータ
40 NMOSトランジスタ
54 PNPトランジスタ
56 オペアンプ
58 NMOSトランジスタ
Claims (4)
- 複数の半導体光源へ電力を供給する複数のスイッチングレギュレータと、
前記スイッチングレギュレータの出力電圧を制御するスイッチングレギュレータ制御手段と、
前記半導体光源に接続され、外部からの通信情報に基づき、前記半導体光源の点消灯を制御する点消灯制御手段と、
を備え、
前記複数のスイッチングレギュレータの前記半導体光源へ供給する各電力の最大値のうち少なくとも2つは略等しい、
ことを特徴とする車両用灯具の点灯制御装置。 - 請求項1に記載の車両用灯具の点灯制御装置において、
前記半導体光源は、車両用前照灯として用いられ、
少なくとも1つのスイッチングレギュレータに接続される前記半導体光源は、昼間用光源と夜間用光源の両方の光源に用いられることを特徴とする車両用灯具の点灯制御装置。 - 請求項1または2に記載の車両用灯具の点灯制御装置において、
前記半導体光源の少なくとも2つは、ロービーム用光源として用いられ、
前記ロービーム用光源は、別々のスイッチングレギュレータに分離して接続されていることを特徴とする車両用灯具の点灯制御装置。 - 請求項1または2に記載の車両用灯具の点灯制御装置において、
前記半導体光源は、ロービーム用光源とハイビーム用光源からなり、
前記ロービーム用光源と前記ハイビーム用光源は、それぞれ異なるスイッチングレギュレータに接続されていることを特徴とする車両用灯具の点灯制御装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007194540A JP4931720B2 (ja) | 2007-07-26 | 2007-07-26 | 車両用灯具の点灯制御装置 |
CN2008101377353A CN101355842B (zh) | 2007-07-26 | 2008-07-18 | 车辆用灯具的点亮控制装置 |
US12/176,493 US7888876B2 (en) | 2007-07-26 | 2008-07-21 | Lighting control for vehicle lighting device |
KR1020080071117A KR101021211B1 (ko) | 2007-07-26 | 2008-07-22 | 차량용 등기구의 점등 제어 장치 |
EP08013185.7A EP2019570B1 (en) | 2007-07-26 | 2008-07-22 | Lighting control for vehicle lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007194540A JP4931720B2 (ja) | 2007-07-26 | 2007-07-26 | 車両用灯具の点灯制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009032494A JP2009032494A (ja) | 2009-02-12 |
JP4931720B2 true JP4931720B2 (ja) | 2012-05-16 |
Family
ID=39876218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007194540A Expired - Fee Related JP4931720B2 (ja) | 2007-07-26 | 2007-07-26 | 車両用灯具の点灯制御装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7888876B2 (ja) |
EP (1) | EP2019570B1 (ja) |
JP (1) | JP4931720B2 (ja) |
KR (1) | KR101021211B1 (ja) |
CN (1) | CN101355842B (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090187925A1 (en) * | 2008-01-17 | 2009-07-23 | Delta Electronic Inc. | Driver that efficiently regulates current in a plurality of LED strings |
US7817028B2 (en) * | 2008-10-03 | 2010-10-19 | Opto Tech Corp. | System and method for driving LED vehicle lights |
JP5348100B2 (ja) | 2010-09-17 | 2013-11-20 | トヨタ自動車株式会社 | 前照灯装置、輝度制御方法 |
DE102011005582A1 (de) * | 2011-03-15 | 2012-09-20 | Automotive Lighting Reutlingen Gmbh | Beleuchtungseinrichtung für ein Kraftfahrzeug mit einer redundanten Ansteuerung von Lichtquellen |
US8773032B2 (en) * | 2011-07-11 | 2014-07-08 | Thin-Lite Corporation | LED light source with multiple independent control inputs and interoperability |
JP5897913B2 (ja) | 2012-01-26 | 2016-04-06 | 株式会社小糸製作所 | 灯具ユニット |
DE102012208516A1 (de) * | 2012-05-22 | 2013-11-28 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeugscheinwerfer |
CN203131661U (zh) * | 2013-03-14 | 2013-08-14 | 广东骑光车灯工业有限公司 | 一种组合式光学透镜led摩托车前照灯 |
FR3012009B1 (fr) | 2013-10-15 | 2019-04-05 | Valeo Vision | Dispositif de commande d'une pluralite d'ensembles de led, notamment pour un vehicule automobile |
JP6201700B2 (ja) * | 2013-12-06 | 2017-09-27 | マツダ株式会社 | 車両の前照灯制御装置 |
US10277080B2 (en) * | 2014-01-27 | 2019-04-30 | Cummins Inc. | Inductive harness coupling and communication for distributed architectures |
CN104325925A (zh) * | 2014-10-12 | 2015-02-04 | 郭和友 | 大片分离平铺变光led车用大灯 |
JP2016107880A (ja) * | 2014-12-08 | 2016-06-20 | スタンレー電気株式会社 | 車両用前照灯 |
AT518685B1 (de) * | 2016-06-07 | 2018-05-15 | Zkw Group Gmbh | Kraftfahrzeug-Beleuchtungseinrichtung |
US10144341B2 (en) * | 2016-09-19 | 2018-12-04 | Toyota Motor Engineering & Manufacturing North Ameria, Inc. | Low beam intensity control unit |
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 |
KR102643676B1 (ko) * | 2018-06-15 | 2024-03-06 | 엘지이노텍 주식회사 | 엘이디 구동장치 및 이를 포함하는 차량용 램프 |
US11153948B2 (en) * | 2020-03-02 | 2021-10-19 | Infineon Technologies Ag | Modular front light LED driver messaging system |
CN111845535A (zh) * | 2020-06-08 | 2020-10-30 | 郭媛姣 | 一种远光灯定向提醒方法 |
US11553570B1 (en) | 2021-10-29 | 2023-01-10 | Infineon Technologies Ag | Interface expander circuit for light emitting diode (LED) driver circuits |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001138799A (ja) * | 1999-08-30 | 2001-05-22 | Koito Mfg Co Ltd | 車輌用照明装置 |
JP2005348592A (ja) | 2004-06-07 | 2005-12-15 | Koito Mfg Co Ltd | 電源装置および車両用灯具 |
JP4509704B2 (ja) * | 2004-09-03 | 2010-07-21 | 株式会社小糸製作所 | 車両用灯具の点灯制御回路 |
JP4400880B2 (ja) * | 2004-10-05 | 2010-01-20 | 株式会社小糸製作所 | 車両用灯具の点灯制御回路 |
JP4398411B2 (ja) * | 2005-07-12 | 2010-01-13 | 株式会社小糸製作所 | 車両用灯具の点灯制御装置 |
JP2007182158A (ja) * | 2006-01-10 | 2007-07-19 | Koito Mfg Co Ltd | 車両用灯具の点灯制御装置 |
JP2007200610A (ja) * | 2006-01-24 | 2007-08-09 | Koito Mfg Co Ltd | 車両用灯具の点灯制御装置 |
DE102007038892A1 (de) * | 2007-08-17 | 2009-04-09 | Texas Instruments Deutschland Gmbh | Hochgeschwindigkeits-LED-Treiber |
US8169161B2 (en) * | 2007-11-16 | 2012-05-01 | Allegro Microsystems, Inc. | Electronic circuits for driving series connected light emitting diode strings |
US20090187925A1 (en) * | 2008-01-17 | 2009-07-23 | Delta Electronic Inc. | Driver that efficiently regulates current in a plurality of LED strings |
US7999487B2 (en) * | 2008-06-10 | 2011-08-16 | Allegro Microsystems, Inc. | Electronic circuit for driving a diode load with a predetermined average current |
US7928670B2 (en) * | 2008-06-30 | 2011-04-19 | Iwatt Inc. | LED driver with multiple feedback loops |
-
2007
- 2007-07-26 JP JP2007194540A patent/JP4931720B2/ja not_active Expired - Fee Related
-
2008
- 2008-07-18 CN CN2008101377353A patent/CN101355842B/zh active Active
- 2008-07-21 US US12/176,493 patent/US7888876B2/en not_active Expired - Fee Related
- 2008-07-22 KR KR1020080071117A patent/KR101021211B1/ko not_active IP Right Cessation
- 2008-07-22 EP EP08013185.7A patent/EP2019570B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2019570A2 (en) | 2009-01-28 |
EP2019570A3 (en) | 2012-07-18 |
EP2019570B1 (en) | 2019-01-02 |
US20090026958A1 (en) | 2009-01-29 |
KR20090012096A (ko) | 2009-02-02 |
JP2009032494A (ja) | 2009-02-12 |
KR101021211B1 (ko) | 2011-03-11 |
CN101355842A (zh) | 2009-01-28 |
CN101355842B (zh) | 2012-03-21 |
US7888876B2 (en) | 2011-02-15 |
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