JP2018195448A - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
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- JP2018195448A JP2018195448A JP2017098230A JP2017098230A JP2018195448A JP 2018195448 A JP2018195448 A JP 2018195448A JP 2017098230 A JP2017098230 A JP 2017098230A JP 2017098230 A JP2017098230 A JP 2017098230A JP 2018195448 A JP2018195448 A JP 2018195448A
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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
- 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
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
- B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
-
- 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
- B60Q1/0094—Arrangement of electronic circuits separated from the light source, e.g. mounting of housings for starter circuits for discharge lamps
-
- 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
-
- 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
-
- 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
- F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/70—Prevention of harmful light leakage
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/141—Control of illumination
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
-
- 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
- H05B45/59—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits for reducing or suppressing flicker or glow effects
-
- 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
- B60Q2300/33—Driving situation
- B60Q2300/336—Crossings
-
- 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
- B60Q2300/45—Special conditions, e.g. pedestrians, road signs or potential dangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
- F21W2103/60—Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor 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]
- H05B45/50—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
-
- 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
- H05B47/26—Circuit arrangements for protecting against earth faults
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical 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)
Abstract
Description
これによりコンパレータの出力にもとづいてフェイル信号を生成できる。
これによりカウンタの状態に応じてフェイル信号を生成できる。
この場合、第3コンパレータCOMP3の出力信号S43がハイレベルとなる。信号S43は調光回路370の充電回路374に作用し、キャパシタ372への充電電流量を減少させる。これにより、電圧VSSの上昇速度が遅くなる。
第2コンパレータCOMP2、第3コンパレータCOMP3の出力信号S42,S43が両方、ローレベルとなる。論理ゲート364は、信号S42,S43が両方ローレベルとなると、第1スイッチ362をオンする。論理ゲート364はNORゲートであってもよい。
第2コンパレータCOMP2の出力S42がハイレベルとなる。これにより、ソレノイド駆動回路316がアクティブとなり、アクチュエータ206が通電状態となり、第1点灯モードとなる。
第1コンパレータCOMP1の出力S41がハイレベルとなる。これにより第2スイッチ378がオンとなり、調光回路370の出力VSSが瞬時にゼロとなり、光源202が消灯する。
Claims (6)
- 光源と、
前記光源を点滅させる駆動部と、
前記光源の点灯中に、異常状態を示唆する所定の状態が検出される間、異常検出信号をアサートする異常検出回路と、
(i)前記光源の点灯中に前記異常検出信号がアサートされる間、計時を進め、前記異常検出信号がネゲートされると計時をリセットし、(ii)前記光源の消灯中に、直前の点灯期間において計時した時間を保持し、(iii)計時した時間が所定の判定時間に達すると、フェイル信号をアサートするタイマー回路と、
を備えることを特徴とする車両用灯具。 - 前記光源は、
励起光を出射する半導体光源と、
前記励起光により励起されて蛍光を発する蛍光体と、
を含み、前記励起光と前記蛍光のスペクトルを含む白色の出力光を生成するよう構成され、
前記異常状態は、前記励起光の漏光であることを特徴とする請求項1に記載の車両用灯具。 - 前記タイマー回路は、
キャパシタと、
前記光源の点灯中に前記異常検出信号がアサートされる間、前記キャパシタを充電し、前記光源の点灯中に前記異常検出信号がネゲートされると、前記キャパシタを放電する充放電回路と、
前記キャパシタの電圧を所定のしきい値と比較するコンパレータと、
を含むことを特徴とする請求項1または2に記載の車両用灯具。 - 前記異常検出回路は、
クロック入力端子とクリア端子を有するカウンタと、
前記光源の点灯中に前記異常検出信号がアサートされる間、前記クロック入力端子にクロック信号を供給し、前記光源の点灯中に前記所定の状態が検出されないとき、前記クリア端子にクリア信号を供給するカウンタコントローラと、
を含むことを特徴とする請求項1または2に記載の車両用灯具。 - 前記光源は路面マーキング用であることを特徴とする請求項1から4のいずれかに記載の車両用灯具。
- 前記光源は、路面マーキング用と遠方照射ハイビームで兼用されることを特徴とする請求項1から5のいずれかに記載の車両用灯具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017098230A JP6865633B2 (ja) | 2017-05-17 | 2017-05-17 | 車両用灯具 |
US15/970,984 US10752164B2 (en) | 2017-05-17 | 2018-05-04 | Vehicular lamp |
CN201810419330.2A CN108966405B (zh) | 2017-05-17 | 2018-05-04 | 车辆用灯具 |
KR1020180053755A KR102027698B1 (ko) | 2017-05-17 | 2018-05-10 | 차량용 등기구 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017098230A JP6865633B2 (ja) | 2017-05-17 | 2017-05-17 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018195448A true JP2018195448A (ja) | 2018-12-06 |
JP6865633B2 JP6865633B2 (ja) | 2021-04-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017098230A Active JP6865633B2 (ja) | 2017-05-17 | 2017-05-17 | 車両用灯具 |
Country Status (4)
Country | Link |
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US (1) | US10752164B2 (ja) |
JP (1) | JP6865633B2 (ja) |
KR (1) | KR102027698B1 (ja) |
CN (1) | CN108966405B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022270414A1 (ja) * | 2021-06-22 | 2022-12-29 | 株式会社小糸製作所 | ランプコントローラおよび車両用灯具システム |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018122649A1 (de) * | 2018-09-17 | 2020-03-19 | Infineon Technologies Ag | Elektronische Schaltung mit einem Led-Modul |
DE102019110967A1 (de) | 2019-04-29 | 2020-10-29 | HELLA GmbH & Co. KGaA | Verfahren zur Steuerung eines Scheinwerfers eines Kraftfahrzeugs |
TWI757794B (zh) * | 2020-07-15 | 2022-03-11 | 群光電能科技股份有限公司 | 燈組切換控制裝置 |
JP2022049515A (ja) * | 2020-09-16 | 2022-03-29 | 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 |
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2017
- 2017-05-17 JP JP2017098230A patent/JP6865633B2/ja active Active
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2018
- 2018-05-04 US US15/970,984 patent/US10752164B2/en active Active
- 2018-05-04 CN CN201810419330.2A patent/CN108966405B/zh active Active
- 2018-05-10 KR KR1020180053755A patent/KR102027698B1/ko active IP Right Grant
Patent Citations (5)
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JPS63199145A (ja) * | 1987-02-13 | 1988-08-17 | Nippon Denso Co Ltd | 車両用方向指示装置 |
JP2009284721A (ja) * | 2008-05-26 | 2009-12-03 | Panasonic Electric Works Co Ltd | 電源装置および灯具、車両 |
JP2016002974A (ja) * | 2014-06-19 | 2016-01-12 | トヨタ自動車株式会社 | 車両用照明装置 |
JP2016058370A (ja) * | 2014-09-04 | 2016-04-21 | 株式会社小糸製作所 | 車両用灯具およびその光源の異常検出器 |
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CN108966405B (zh) | 2020-06-26 |
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US10752164B2 (en) | 2020-08-25 |
CN108966405A (zh) | 2018-12-07 |
US20180334085A1 (en) | 2018-11-22 |
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