EP1406789A2 - Unite de detection pour commutation automatique de dispositifs d'eclairage et support de couplage pour unite de detection - Google Patents

Unite de detection pour commutation automatique de dispositifs d'eclairage et support de couplage pour unite de detection

Info

Publication number
EP1406789A2
EP1406789A2 EP02745115A EP02745115A EP1406789A2 EP 1406789 A2 EP1406789 A2 EP 1406789A2 EP 02745115 A EP02745115 A EP 02745115A EP 02745115 A EP02745115 A EP 02745115A EP 1406789 A2 EP1406789 A2 EP 1406789A2
Authority
EP
European Patent Office
Prior art keywords
sensor unit
coupling medium
signals
infrared light
light
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.)
Withdrawn
Application number
EP02745115A
Other languages
German (de)
English (en)
Inventor
Patrick Schmitt
Bruno Hodapp
Hans Meier
Henry Blitzke
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1406789A2 publication Critical patent/EP1406789A2/fr
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/20—Indexing codes relating to the driver or the passengers
    • B60Q2300/21—Manual control
    • 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
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/314—Ambient light

Definitions

  • the invention relates to a sensor unit for automatically switching lighting devices, a coupling medium for coupling such a sensor unit to a pane, and the use of a coupling medium and a filter according to the type of the independent claims.
  • Switching properties, in particular the individual switch-on and switch-off points of the sensor unit can be significantly improved by the pre-arrangement of a filter element that filters out infrared light.
  • the filter element filters out light with wavelengths greater than 750 nm, since these lie above the perception threshold of the human eye.
  • the filter element with adhesive properties, since in this way the filter element can be glued directly onto the inside or outside of the windshield of the motor vehicle.
  • the senor is preceded by a light-guiding body which can be fastened to a disk by means of a coupling medium and Disc or the coupling element filters out infrared light, in particular with wavelengths greater than 750 nm.
  • a light-guiding body which can be fastened to a disk by means of a coupling medium and Disc or the coupling element filters out infrared light, in particular with wavelengths greater than 750 nm.
  • conventional sensor units can also be retrofitted with an infrared filter layer.
  • the coupling medium according to the invention with the features of claim 8 has the advantage that an infrared filter for the sensor unit can be placed very easily in front of the transmitter and, for example, the response behavior of an existing sensor unit can be improved by simply changing the coupling medium.
  • the coupling medium consists of a plate or film which is provided with an adhesive, since the coupling medium is able to hold the sensor device on the disc in a self-adhesive manner.
  • the coupling element has an overall curvature, since gas bubbles or air bubbles in the coupling area cause disturbing scattering and can be easily avoided in this way.
  • the sensor unit can also be slightly curved on its mounting side, which causes the same effect.
  • optically transparent coupling medium with the features of claim 11 has the advantage that the response behavior of the sensor unit for the automatic control of lighting devices is significantly improved.
  • the use of a filter for filtering radiation with the features of claim 12 also has the advantage that the response behavior of the sensor unit for the automatic control of lighting devices is significantly improved by means of a simple and inexpensive measure.
  • the sensor unit has a control device for controlling the
  • Illumination devices has the switching on and off points of the lighting devices, taking into account separately measured IR signals. Since IR signals are often already available from the climate control or a rain sensor, the switching properties of the sensor unit can be improved without additional costs.
  • the signals of the light sensors and the IR signals are each assigned values and the values of the signals are acted upon by the values of the IR signals.
  • a factor is advantageously taken into account, so that there is an electronic filter effect.
  • the switching thresholds of the control device are increased or decreased taking into account the IR signals.
  • FIG. 1 shows a sensor unit according to the invention in a schematic illustration
  • Figure 2 shows a radiation spectrum electromagnetic
  • Figure 3 shows an exemplary signal curve of the sensors. Description of the embodiments
  • FIG. 1 shows a sensor unit 10 according to the invention in a schematic illustration.
  • the sensor unit 10 essentially consists of a control device 12, which is able to control the lighting devices 14, and sensors 16, which are connected to the control device 12 and emit signals (S) to the latter.
  • Standard receivers BPW 24S from Infineon can be used as sensors.
  • the sensors 16 are preceded by a light-guiding body 18 which has imaging structures 19 which are designed, for example, as lenses or holograms.
  • the sensors 16 are positioned approximately on the optical axis of the structures 19 and are carried by a common printed circuit board 20, on which also the control device 12 is arranged.
  • no structure 19 is necessary for the detection of the global ambient light, but, for example, a lens with an extremely long focal length f up to an infinite focal length can be used.
  • the sensor unit 10 is fastened on a pane 24, for example the windshield of a motor vehicle, by means of a coupling medium 22.
  • the coupling medium 22 is located between the light guide body 18 and the disk 24. Normally, the light guide body 18 closes the housing of the sensor unit 10, which is not shown here for the sake of simplicity.
  • An IR film 26 is arranged in the pane 24 and reflects infrared radiation with a wavelength greater than 700 nm. This way, very little, ideally no incident infrared radiation is passed on in the direction of the sensors 16.
  • an IR film can also be arranged in the coupling medium 22 or on its surfaces.
  • the light guide body 18 is manufactured from a material that is opaque to infrared light, or at least to design the regions of the light guide body 18 that focus the incident radiation on the sensors 16 to be infrared-opaque.
  • appropriate filter molecules can be added, for example, in the injection molding process or a multi-component injection molding process can be practiced.
  • a very simple further embodiment is to apply infrared filters directly to sensors 16 or to attach them directly in front of them.
  • infrared-insensitive sensors 16 can also be used.
  • an infrared-opaque film can also be glued to the pane 24 in the area of the sensor unit 10 or attached in some other way, for example by adhesion.
  • the IR threshold can be set precisely by a suitable choice of materials, their arrangements and transmission spectra
  • the sensor unit 10 can be integrated into a rain sensor.
  • infrared-inhibiting layers Silicon-Protect layers
  • numerous rain sensors use infrared light to detect precipitation.
  • the infrared-inhibiting layer can then be introduced again like a window or - depending on the geometry of the rain sensor - the rain sensor with the sensor unit can be arranged in the area of the boundary of the infrared-inhibiting layer.
  • the coupling medium 22 can be designed to be infrared-inhibiting in the area of the sensor unit and to be permeable to infrared light in the areas of the rain sensor.
  • the coupling medium 22 can be produced, for example, from a two- or multi-component injection molding process.
  • the visible radiation i.e. the light radiation
  • the infrared radiation begins at around 750 nm and extends to a wavelength of 0.1 mm.
  • sunlight also has numerous other components, such as a large proportion of infrared radiation.
  • the effects of infrared radiation can also be compensated for electronically.
  • the control device 12 is supplied with IR signals IRS.
  • the IR signals IRS and the signals S of the sensors 16 are each assigned values. From the values of the IR signals IRS and a factor F becomes by Multiplication calculates an offset that is added to the values assigned to the signals S.
  • FIG. 3 A signal curve produced in this way is shown in FIG. 3.
  • the signal S and the corrected signal over time are shown here by way of example.
  • the IR signal IRS is constant in the timely period; of course it changes over a longer period of time.
  • switching thresholds or other parameters characteristic of the switch-on and / or switch-off points of the control device 12 can be changed taking into account the IR signals.
  • the IR signals IRS can be generated by means of a special receiver, for example a BPW 34 photodiode with daylight blocking filter from Infineon. This receiver emits IR signals IRS, which are a measure of the infrared radiation striking it. Often, however, such or a similar photodiode is already integrated in rain sensors, so that suitable IR signals IRS are already available.
  • the switch-on and switch-off points of the lighting devices can be optimally matched to the vehicle driver.
  • the weighting factors can also be readjusted by the vehicle driver himself To be able to adjust the sensitivity of the sensor unit to individual needs.
  • Such a setting can be made, for example, via central electronics and thus, for example, via a touch screen of a driver interface, which also has, for example, a climate control, a navigation system and other components known to the person skilled in the art in this connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne une unité de détection (10) permettant une commutation automatique de dispositifs d'éclairage (14) d'automobile, qui comprend au moins un détecteur photosensible, devant lequel est monté un élément filtrant (26). Ledit élément filtrant (26) extrait la lumière infrarouge par filtration. L'invention concerne en outre un support de couplage (22) destiné à améliorer les points de réponse de l'unité de détection (10), ainsi que l'utilisation d'un support de couplage (22) et d'un filtre pour améliorer les points de réponse de l'unité de détection (10).
EP02745115A 2001-07-04 2002-06-01 Unite de detection pour commutation automatique de dispositifs d'eclairage et support de couplage pour unite de detection Withdrawn EP1406789A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10132454A DE10132454A1 (de) 2001-07-04 2001-07-04 Sensoreinheit zum automatischen Schalten von Beleuchtungseinrichtungen sowie Koppelmedium für eine Sensoreinheit
DE10132454 2001-07-04
PCT/DE2002/002018 WO2003004309A2 (fr) 2001-07-04 2002-06-01 Unite de detection pour commutation automatique de dispositifs d'eclairage et support de couplage pour unite de detection

Publications (1)

Publication Number Publication Date
EP1406789A2 true EP1406789A2 (fr) 2004-04-14

Family

ID=7690609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02745115A Withdrawn EP1406789A2 (fr) 2001-07-04 2002-06-01 Unite de detection pour commutation automatique de dispositifs d'eclairage et support de couplage pour unite de detection

Country Status (7)

Country Link
US (1) US7149026B2 (fr)
EP (1) EP1406789A2 (fr)
JP (1) JP2004532766A (fr)
KR (1) KR100840882B1 (fr)
BR (1) BR0205694A (fr)
DE (1) DE10132454A1 (fr)
WO (1) WO2003004309A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329584A1 (de) * 2003-06-30 2005-01-27 Robert Bosch Gmbh Sensoreinrichtung zum automatischen Steuern von Beleuchtungseinrichtungen
WO2007046539A1 (fr) * 2005-10-21 2007-04-26 Toyota Jidosha Kabushiki Kaisha Dispositif pour refroidir un dispositif electrique fixe sur un vehicule
DE102005060603A1 (de) * 2005-12-17 2007-06-21 Bayerische Motoren Werke Ag Vorrichtung zur Ermittlung der Helligkeit der Umgebung eines Kraftfahrzeugs
US8634988B2 (en) * 2006-01-10 2014-01-21 Guardian Industries Corp. Time, space, and/or wavelength multiplexed capacitive light sensor, and related methods
US9371032B2 (en) 2006-01-10 2016-06-21 Guardian Industries Corp. Moisture sensor and/or defogger with Bayesian improvements, and related methods
JP4798125B2 (ja) * 2007-12-13 2011-10-19 株式会社デンソー 照度センサ
JP5737564B2 (ja) * 2011-03-04 2015-06-17 株式会社デンソー 車両用ライト点消灯装置
ES2676561T3 (es) * 2013-04-22 2018-07-20 Saint-Gobain Glass France Cristal de vehículo con un filtro óptico
CN111699108B (zh) * 2017-12-14 2023-07-25 亮锐控股有限公司 用于具有自动光束模式选择的车辆前灯的照明器

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JPS5610211B2 (fr) 1973-10-19 1981-03-06
US4376909A (en) 1979-04-13 1983-03-15 Honda Giken Kogyo Kabushiki Kaisha Automatic light control for automotive vehicles
DE3535515A1 (de) * 1985-10-04 1987-04-09 Pantuc Ing Buero Verfahren und vorrichtung zur on-line-messung von transmission oder reflexion an bewegten objekten im bereich detektierbarer elektromagnetischer strahlung
US5036437A (en) * 1990-09-04 1991-07-30 Lectron Products, Inc. Vehicle lamp control sensor
US6671008B1 (en) * 1991-11-27 2003-12-30 Reveo, Inc. Electro-optical glazing structures having scattering and transparent modes of operation and methods and apparatus for making the same
DE19509164C1 (de) * 1995-03-14 1996-03-14 Preh Elektro Feinmechanik Regelaggregat für Fahrzeug-Klimaanlagen
US5966205A (en) * 1997-07-01 1999-10-12 Lj Laboratories, Llc Method and apparatus for detecting and preventing counterfeiting
AU4153397A (en) * 1996-08-20 1998-03-06 Donnelly Corporation Window assembly with controllable optical transmission
EP0869043B1 (fr) 1997-04-04 2004-12-29 Robert Bosch Gmbh Dispositif détecteur pour déterminer la degré de l'humidité et de la contamination sur la surface d'un pare-brise
JPH11194091A (ja) * 1997-08-20 1999-07-21 Daimler Benz Ag 車道表面の状態を求める方法及びこの方法を実施する装置
DE19815748C5 (de) * 1998-04-08 2008-02-28 Robert Bosch Gmbh Sensoreinrichtung zur Erfassung einer Benetzung einer Scheibe
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Also Published As

Publication number Publication date
KR100840882B1 (ko) 2008-06-24
US20040042223A1 (en) 2004-03-04
WO2003004309A3 (fr) 2003-09-12
JP2004532766A (ja) 2004-10-28
WO2003004309A2 (fr) 2003-01-16
DE10132454A1 (de) 2003-01-16
BR0205694A (pt) 2003-07-15
US7149026B2 (en) 2006-12-12
KR20030048023A (ko) 2003-06-18

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