WO2006032605A1 - Dispositif d'eclairage pour vehicule automobile - Google Patents
Dispositif d'eclairage pour vehicule automobile Download PDFInfo
- Publication number
- WO2006032605A1 WO2006032605A1 PCT/EP2005/054356 EP2005054356W WO2006032605A1 WO 2006032605 A1 WO2006032605 A1 WO 2006032605A1 EP 2005054356 W EP2005054356 W EP 2005054356W WO 2006032605 A1 WO2006032605 A1 WO 2006032605A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lighting
- brightness
- vehicle
- value
- tunnel
- Prior art date
Links
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
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
Definitions
- the present invention relates to a lighting device for a motor vehicle.
- the human eye does not immediately adapt to a sudden change in brightness.
- a person is momentarily dazzled when it suddenly passes from a dark environment to a well-lit environment.
- a person sees momentarily only black when it passes suddenly from a well-lit environment to a dark environment.
- the duration of adaptation of the human eye is generally longer during a transition from light to darkness than in the opposite case. In general, a person takes 20 to 30 minutes to get used to the darkness completely.
- a driver of a motor vehicle may be subject to a sudden change in brightness, for example when passing the vehicle in a tunnel.
- the driver can be obstructed at the entrance and exit of the tunnel, especially when there is a lot of sunshine outside the tunnel. Indeed, the driver perceives only black entering the tunnel and is dazzled out of this tunnel.
- a lighting device for a motor vehicle of the type comprising ambient lighting means of the interior of a passenger compartment of the vehicle.
- These ambient lighting means are activated by manual control. They are intended to emit, usually at night, a comfort light in the cockpit. This light is emitted outside the field of vision of the driver so as not to interfere.
- the invention particularly aims to optimize the visual comfort of a driver, including facilitating its adaptation to sudden changes in brightness.
- the subject of the invention is a lighting device for a motor vehicle, of the type comprising ambient lighting means of the interior of a passenger compartment of the vehicle, characterized in that it comprises: means for measuring brightness, and
- a lighting device for a motor vehicle according to the invention may further comprise one or more of the following features:
- control means activate the ambient lighting means when the measured brightness is below a predetermined threshold;
- control means comprise means for processing the measured brightness, making it possible to determine a control parameter for the lighting means from a variation of the measured brightness;
- control means comprise means for adjusting a light intensity of a light emitted by the lighting means
- the adjustment means comprise means that automatically vary the luminous intensity of the lighting means between a first maximum value and a second value less than or equal to the first, the value of the luminous intensity of the lighting means being maximum at the beginning lighting period;
- the adjustment means comprise timing means imposing a predetermined passage time of the light intensity of the lighting means between the first and second values;
- the device comprises means for storing the second luminous intensity value
- the device comprises means for determining the second luminous intensity value as a function of the measured luminosity
- the device comprises means for adjusting a wavelength of a light emitted by the lighting means; the device comprises means for controlling lighting means of the outside of the vehicle as a function of the measured brightness; the brightness measuring means are intended to measure an external luminosity of the vehicle; the brightness measuring means comprise means for detecting the presence of a tunnel in front of a vehicle, for example first and second light sensors having, respectively, a detection field directed in front of the vehicle and a field detection directed upwards.
- FIG. 1 is a diagram of a motor vehicle lighting device according to one embodiment of the invention
- FIG. 2 represents two curves of evolution of the luminosity or luminous intensity inside a passenger compartment of the motor vehicle, respectively with and without the lighting device of FIG. 1.
- FIG. 1 diagrammatically shows a lighting device 10 for a motor vehicle.
- This lighting device 10 comprises conventional means 12 of ambient lighting of the interior of a passenger compartment of the motor vehicle, and conventional means 13 lighting the outside of the vehicle. The driver must generally activate these external lighting means 13 when the external brightness of the vehicle is low.
- the ambient lighting means 12 are intended to diffuse inside the passenger compartment, in certain situations, a light, generally screened, for the visual comfort of the occupants of the vehicle, in particular the passengers.
- the ambient lighting means 12 are arranged outside the field of view of the driver so as not to interfere.
- the ambient lighting means 12 are controlled according to sudden variations in brightness such as, for example, the variations in brightness that occur during the passage of the motor vehicle in a tunnel.
- the lighting device 10 comprises means 14 for measuring a brightness and means 16 for controlling the ambient lighting means 12 as a function of the brightness measured by the means 14.
- the means 14 for measuring brightness comprise a sun sensor, for example a photodiode, capable of measuring the brightness outside the vehicle.
- the means 14 for measuring brightness may comprise a light sensor inside the vehicle.
- the control means 16 comprise means 18 for processing the external luminosity measured by the means 14.
- the processing means 18 make it possible to determine a control parameter for the lighting means 12 from a variation of the measured brightness.
- control means 16 can activate the lighting means 12 only when the brightness suddenly becomes lower than a predetermined threshold, for example when the vehicle enters a tunnel.
- control means 16 can activate the ambient lighting means 12 when the external brightness is below a predetermined threshold.
- the control means 16 furthermore comprise means 20 for adjusting the brightness of the light emitted by the lighting means 12 so that this brightness can evolve according to an optimized sequence to favor the adaptation of the eye to a change. of brightness inside the cabin.
- the adjustment means 20 preferably comprise means 22 which automatically vary the brightness of the lighting means 12 between a first maximum value V1 and a second value V2, less than or equal to the first value V1.
- the value of the brightness of the illumination means 12 is maximum (that is to say equal to V1) at the beginning of the illumination period (the illumination period is triggered by a sudden drop in external brightness ), in order to limit the drop in brightness inside the passenger compartment at the beginning of the period of activation of the ambient lighting.
- the adjustment means 20 comprise delay means 24 imposing a predetermined time of passage of the brightness of the lighting means 12 between the first V1 and second V2 values.
- the second value V2 of the brightness is generally predetermined.
- the control means 16 comprise means 26 for storing the second value V2.
- This second value V2 is generally that used for night-time lighting.
- the second value V 2 of the brightness can be determined as a function of the external brightness measured by the measuring means 14.
- the lighting device 10 preferably comprises means 30 for adjusting a wavelength of the light emitted by the lighting means 12.
- the color of the light emitted by the lighting means 12 can be set, for example by a command actuated manually by the driver.
- the lighting device 10 also preferably comprises means 34 for controlling the external lighting means 13 as a function of the external brightness measured by the means 14.
- control means 16 of the internal lighting means 12 can be used to control the external lighting means 13.
- Figure 2 shows two curves representing the change in brightness or luminous intensity (ordinate) in a passenger vehicle when the vehicle passes through a tunnel (entry E and exit S of the tunnel abscissa).
- the first curve has portions C1, C2, C3, C4, C5, C6 and C7 representing the brightness in the passenger compartment of a motor vehicle not comprising a lighting device 10 according to the invention.
- the portion C1 corresponds to the motor vehicle moving outside the tunnel, for example in daylight.
- the brightness in the passenger compartment, denoted VE on the drawing, corresponds substantially to the external luminosity.
- portion C1 corresponds to the vehicle entering E in the tunnel.
- the brightness then drops (portions C2 and C3) to a value, noted Vl in the drawing, corresponding to the brightness in the passenger compartment when the vehicle is inside the tunnel.
- the portion C4 corresponds to the vehicle moving in the tunnel.
- the end of the portion C4 corresponds to the vehicle approaching the exit of the tunnel.
- the brightness gradually increases (portions C5 and C6) until reaching the value VE at the exit S of the tunnel.
- the second curve comprises the portions C1, C2, C6 and C7 and portions C8 and C9 representing the brightness in the passenger compartment of a motor vehicle equipped with the lighting device 10 according to the invention.
- the measuring means 14 detect a decrease in the external brightness.
- this external brightness is below a predetermined threshold, or when the variation measuring means 18 detect a variation greater than a predetermined threshold, the control means 16 control the lighting of the lighting means 12.
- the brightness in the passenger compartment of the motor vehicle does not then go beyond the value V1 (the vehicle enters the tunnel) corresponding to the maximum value of the brightness of the lighting means 12. It will be noted that thus, the driver's eye does not undergo a drop in brightness as abrupt as in the previous case (without the lighting device according to the invention).
- the brightness of the lighting means 12 decreases progressively from the value V1 to the value V2 for a predetermined time imposed by the delay means 26.
- This brightness V2 remains substantially constant in the passenger compartment while the vehicle is moving in the tunnel (curve portion C9).
- portion C7 The brightness measuring means 14 again detect a brightness high and the control means 16 control the extinction of the lighting means
- the driver's eye does not undergo an excessive change in brightness both at the entrance and at the exit of the tunnel.
- the means 14 for measuring brightness are adapted to detect in advance the presence of a tunnel in front of the vehicle. The means 14 for measuring brightness then perform an additional function of tunnel presence detection.
- the brightness measuring means 14 comprise first and second brightness sensors, respectively having a detection field directed in front of the vehicle and an upwardly directed detection field. The presence of a tunnel is thus detected when the first brightness sensor detects a significant drop in brightness that it measures below a predetermined threshold while the brightness measured by the second sensor remains constant.
- Such brightness measuring means 14 make it possible to anticipate the control of the lighting means 12, and thus to further increase the visual comfort of the driver during the passage of the vehicle in a tunnel.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007532878A JP2008513294A (ja) | 2004-09-22 | 2005-09-05 | 自動車の照明装置 |
US11/663,609 US20090213600A1 (en) | 2004-09-22 | 2005-09-05 | Lighting device for motor vehicle |
EP05786861A EP1796940B1 (fr) | 2004-09-22 | 2005-09-05 | Dispositif d'eclairage pour vehicule automobile |
DE602005027719T DE602005027719D1 (de) | 2004-09-22 | 2005-09-05 | Beleuchtungsvorrichtung für kraftfahrzeug |
AT05786861T ATE507107T1 (de) | 2004-09-22 | 2005-09-05 | Beleuchtungsvorrichtung für kraftfahrzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0410006A FR2875453B1 (fr) | 2004-09-22 | 2004-09-22 | Dispositif d'eclairage pour vehicule automobile |
FR0410006 | 2004-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006032605A1 true WO2006032605A1 (fr) | 2006-03-30 |
Family
ID=34948830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/054356 WO2006032605A1 (fr) | 2004-09-22 | 2005-09-05 | Dispositif d'eclairage pour vehicule automobile |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090213600A1 (fr) |
EP (1) | EP1796940B1 (fr) |
JP (1) | JP2008513294A (fr) |
AT (1) | ATE507107T1 (fr) |
DE (1) | DE602005027719D1 (fr) |
ES (1) | ES2365523T3 (fr) |
FR (1) | FR2875453B1 (fr) |
WO (1) | WO2006032605A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2921603B1 (fr) * | 2007-10-01 | 2010-12-31 | Alstom Transport Sa | Vehicule de transport notamment voiture ferroviaire comprenant un dispositif d'eclairage d'habitacle |
JP2010076519A (ja) * | 2008-09-24 | 2010-04-08 | Panasonic Electric Works Co Ltd | 車室内照明システム |
DE102012010890A1 (de) * | 2012-06-01 | 2013-12-05 | Audi Ag | Verfahren und Vorrichtung zur Individualisierung eines Kraftfahrzeuginnenraums |
FR3010014A1 (fr) * | 2013-08-30 | 2015-03-06 | Peugeot Citroen Automobiles Sa | Systeme d'eclairage d'ambiance de l'habitacle d'un vehicule automobile et procede de commande d'un tel systeme. |
WO2015198375A1 (fr) * | 2014-06-23 | 2015-12-30 | レシップホールディングス株式会社 | Dispositif d'éclairage |
GB2543493B (en) * | 2015-10-16 | 2018-11-28 | Hanover Displays Ltd | Lighting control system |
CN108882487A (zh) * | 2018-08-27 | 2018-11-23 | 广东工业大学 | 一种汽车、车载调光装置、设备及其调光方法 |
EP3822123B1 (fr) * | 2019-11-13 | 2023-01-25 | Ningbo Geely Automobile Research & Development Co. Ltd. | Procédé et agencement permettant l'adaptation d'un conducteur de véhicule à la luminosité lors de la sortie d'un tunnel |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114737A (en) * | 1981-01-09 | 1982-07-16 | Nissan Motor Co Ltd | Illuminating device of meter for vehicle |
US5143437A (en) * | 1989-06-26 | 1992-09-01 | Nissan Motor Company, Limited | Vehicle room illuminating apparatus |
EP0642952A1 (fr) * | 1993-09-10 | 1995-03-15 | Mercedes-Benz Ag | Procédé et dispositif pour commander l'éclairage interieur d'un véhicule |
US5617112A (en) * | 1993-12-28 | 1997-04-01 | Nec Corporation | Display control device for controlling brightness of a display installed in a vehicular cabin |
US6243002B1 (en) * | 1997-11-17 | 2001-06-05 | Control Devices | Tunnel sensor |
DE10026967A1 (de) * | 2000-05-31 | 2001-12-06 | Volkswagen Ag | Verfahren und Einrichtung zur Ermittlung einer Lichtstärke mittels Sensor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4281365A (en) * | 1979-09-25 | 1981-07-28 | Robert L. Elving | Variable photoelectric cell |
US5149187A (en) * | 1990-09-21 | 1992-09-22 | Nissan Motor Co., Ltd. | Lighting system for use in vehicle cabin |
JPH05310077A (ja) * | 1992-03-27 | 1993-11-22 | Hitachi Ltd | 車両用調光装置 |
JPH11255017A (ja) * | 1998-03-10 | 1999-09-21 | Nissan Motor Co Ltd | 可動式車室内照明装置 |
JPH11321440A (ja) * | 1998-05-18 | 1999-11-24 | Koito Mfg Co Ltd | 車輌用灯具装置 |
US6767890B1 (en) * | 1998-11-18 | 2004-07-27 | Coastside Bio Resources | Peptides having anti-cancer and anti-inflammatory activity |
US6536928B1 (en) * | 2000-03-03 | 2003-03-25 | Lear Corporation | Multi-colored vehicle interior lighting |
JP2005199974A (ja) * | 2004-01-19 | 2005-07-28 | Denso Corp | 車両用ライト制御装置 |
-
2004
- 2004-09-22 FR FR0410006A patent/FR2875453B1/fr active Active
-
2005
- 2005-09-05 US US11/663,609 patent/US20090213600A1/en not_active Abandoned
- 2005-09-05 AT AT05786861T patent/ATE507107T1/de not_active IP Right Cessation
- 2005-09-05 JP JP2007532878A patent/JP2008513294A/ja active Pending
- 2005-09-05 WO PCT/EP2005/054356 patent/WO2006032605A1/fr active Application Filing
- 2005-09-05 DE DE602005027719T patent/DE602005027719D1/de active Active
- 2005-09-05 ES ES05786861T patent/ES2365523T3/es active Active
- 2005-09-05 EP EP05786861A patent/EP1796940B1/fr active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114737A (en) * | 1981-01-09 | 1982-07-16 | Nissan Motor Co Ltd | Illuminating device of meter for vehicle |
US5143437A (en) * | 1989-06-26 | 1992-09-01 | Nissan Motor Company, Limited | Vehicle room illuminating apparatus |
EP0642952A1 (fr) * | 1993-09-10 | 1995-03-15 | Mercedes-Benz Ag | Procédé et dispositif pour commander l'éclairage interieur d'un véhicule |
US5617112A (en) * | 1993-12-28 | 1997-04-01 | Nec Corporation | Display control device for controlling brightness of a display installed in a vehicular cabin |
US6243002B1 (en) * | 1997-11-17 | 2001-06-05 | Control Devices | Tunnel sensor |
DE10026967A1 (de) * | 2000-05-31 | 2001-12-06 | Volkswagen Ag | Verfahren und Einrichtung zur Ermittlung einer Lichtstärke mittels Sensor |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 006, no. 207 (M - 165) 19 October 1982 (1982-10-19) * |
Also Published As
Publication number | Publication date |
---|---|
EP1796940B1 (fr) | 2011-04-27 |
DE602005027719D1 (de) | 2011-06-09 |
ATE507107T1 (de) | 2011-05-15 |
US20090213600A1 (en) | 2009-08-27 |
FR2875453A1 (fr) | 2006-03-24 |
FR2875453B1 (fr) | 2008-05-16 |
EP1796940A1 (fr) | 2007-06-20 |
ES2365523T3 (es) | 2011-10-06 |
JP2008513294A (ja) | 2008-05-01 |
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