EP1812784A1 - Detecteur optique pour la detection d'humidite sur une vitre d'un vehicule automobile - Google Patents

Detecteur optique pour la detection d'humidite sur une vitre d'un vehicule automobile

Info

Publication number
EP1812784A1
EP1812784A1 EP05791832A EP05791832A EP1812784A1 EP 1812784 A1 EP1812784 A1 EP 1812784A1 EP 05791832 A EP05791832 A EP 05791832A EP 05791832 A EP05791832 A EP 05791832A EP 1812784 A1 EP1812784 A1 EP 1812784A1
Authority
EP
European Patent Office
Prior art keywords
light
disc
moisture
transmitter
receiver
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Withdrawn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
EP05791832A
Other languages
German (de)
English (en)
Inventor
Frank Wolf
Vladislav Matusevich
Manfred Tettweiler
Richard Kowarschik
Andrew Matusevich
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 EP1812784A1 publication Critical patent/EP1812784A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0833—Optical rain sensor
    • B60S1/0837—Optical rain sensor with a particular arrangement of the optical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G01N21/552—Attenuated total reflection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • G01N2021/435—Sensing drops on the contact surface

Definitions

  • FIG. 1 shows a light beam 1 which is coupled into the disk 5, propagates as far as the phase-conjugate mirror 8 under total reflection, where it is reflected, passed back as phase-conjugate light beam 4 under further total reflections, and finally out of the
  • the beam 1 penetrates into the crystal 8 from the glass-disc crystal interface and undergoes directed self-scattering 12 along the optical c-axis of the crystal 8 indicated in FIG.
  • the non-scattered part of the beam 1 passes through the crystal 8, while the scattered light distributed in a certain area (beam 2) is totally reflected at the interfaces (i) and (ii) and forms the beam 3.
  • the lattice grating structures 13 and 14 are incorporated in a photo-sensitive, adhesive intermediate layer 15 or in a photosensitive polymer layer integrated into the laminated glass pane.
  • the embodiment of the invention shown in FIGS. 6 and 7 is also particularly suitable for vehicle windows in which the glass layers as a whole have light-absorbing properties for heat rejection, so that the light does not become absorbed due to absorption or other effects unattenuated could propagate in the waveguide formed by the disk 5 itself.
  • the sender's light source usually operates in the infrared range so as not to disturb the driver. With the loss of intensity would also be associated with a reduction in the detection accuracy.
  • the light only has to propagate through the thickness of the glass layer of the composite glass pane 5 to be penetrated to the respective outcoupling side, namely at most a few Male, so that any absorption effects can hardly affect un ⁇ desired manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

L'objectif de l'invention est de permettre de détecter par exemple de l'eau condensée sur la face intérieure (7) d'une vitre (5) au moyen de détecteurs de pluie utilisés dans des véhicules automobiles et exploitant la perturbation de la réflexion totale de la lumière (1) émise par un émetteur sur une surface limite (vitre) recouverte d'humidité. A cet effet, on fait appel, selon l'invention, à une pluralité de détecteurs présentant une configuration et une fonction variables de sorte qu'ils peuvent effectuer au choix une détection intérieure ou extérieure, tout en réalisant une distinction précise entre la présence d'humidité à l'extérieur et à l'intérieur, cette possibilité pouvant être intégrée sans qu'il soit nécessaire de faire appel à des mesures d'adaptation complexes.
EP05791832A 2004-10-16 2005-09-20 Detecteur optique pour la detection d'humidite sur une vitre d'un vehicule automobile Withdrawn EP1812784A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004050765A DE102004050765A1 (de) 2004-10-16 2004-10-16 Optischer Sensor zur Detektion von Feuchtigkeit auf einer Scheibe eines Kraftfahrzeugs
PCT/EP2005/054671 WO2006040241A1 (fr) 2004-10-16 2005-09-20 Detecteur optique pour la detection d'humidite sur une vitre d'un vehicule automobile

Publications (1)

Publication Number Publication Date
EP1812784A1 true EP1812784A1 (fr) 2007-08-01

Family

ID=35431603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05791832A Withdrawn EP1812784A1 (fr) 2004-10-16 2005-09-20 Detecteur optique pour la detection d'humidite sur une vitre d'un vehicule automobile

Country Status (6)

Country Link
US (1) US20090161109A1 (fr)
EP (1) EP1812784A1 (fr)
JP (1) JP4488531B2 (fr)
KR (1) KR20070083692A (fr)
DE (1) DE102004050765A1 (fr)
WO (1) WO2006040241A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010210235A (ja) * 2007-07-03 2010-09-24 Asahi Glass Co Ltd 雨滴検出システム
DE102008028977A1 (de) * 2008-06-18 2009-12-24 Leopold Kostal Gmbh & Co. Kg Sensoranordnung
DE102008060015A1 (de) * 2008-12-03 2010-06-10 GM Global Technology Operations, Inc., Detroit Vorrichtung zur Scheibenheizung, beheizbare Scheibe
DE102009027147A1 (de) 2009-06-24 2010-12-30 Robert Bosch Gmbh Fahrzeug-Verbundglasscheibe für einen Regensensor
RU2478933C1 (ru) * 2011-09-27 2013-04-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Государственный университет - учебно-научно-производственный комплекс" (ФГБОУ ВПО "Госуниверситет - УНПК") Установка для имитации и контроля запотевания стекол защитных очков
DE102013000751B4 (de) * 2013-01-17 2024-02-29 HELLA GmbH & Co. KGaA Sensorvorrichtung zum Erfassen von Feuchtigkeit auf einer Scheibe
DE102013215470A1 (de) * 2013-08-06 2015-02-12 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zum Befreien einer Scheibe eines Kraftwagens von Feuchtigkeitsbeschlag und/oder Eis
GB2523310B (en) * 2014-02-12 2017-05-03 Jaguar Land Rover Ltd Windowpane system and vehicle incorporating same
US20180029563A1 (en) * 2015-03-09 2018-02-01 Jaguar Land Rover Limited Windshield monitoring system
US10795161B2 (en) * 2015-07-10 2020-10-06 The Arizona Board Of Regents On Behalf Of The University Of Arizona Pseudo phase conjugate image transfer device
FR3057500B1 (fr) * 2016-10-17 2018-11-16 Saint-Gobain Glass France Pare-brise et dispositif pour aide a la conduite
US10144356B2 (en) * 2017-03-24 2018-12-04 Ford Global Technologies, Llc Condensation detection for vehicle surfaces via light transmitters and receivers
US10053059B1 (en) 2017-10-04 2018-08-21 Ford Global Technologies, Llc Detection and identification of opaqueness of vehicle windows
DE102018200626A1 (de) * 2018-01-16 2019-07-18 Robert Bosch Gmbh Detektionsvorrichtung zur Detektion von Verschmutzungen
DE102019206376B4 (de) * 2019-05-03 2021-03-18 Audi Ag Fensterscheibe mit einer Heizeinrichtung sowie Kraftfahrzeug umfassend eine Fensterscheibe mit Heizeinrichtung

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
DE3700867A1 (de) * 1987-01-14 1988-07-28 Fraunhofer Ges Forschung Verfahren zum beruehrungslosen erfassen von ultraschallwellen eines prueflings
DE4209680A1 (de) 1992-03-25 1993-09-30 Bosch Gmbh Robert Regensensor
DE19701258A1 (de) * 1996-01-18 1997-07-24 Itt Mfg Enterprises Inc Regensensor mit planarer Koppelfolie
JPH09257952A (ja) * 1996-03-27 1997-10-03 Yazaki Corp 結露および雨滴検出センサとその検出方法
JPH1137925A (ja) * 1997-07-22 1999-02-12 Nippon Sheet Glass Co Ltd 液滴検出装置
JPH1134801A (ja) * 1997-07-22 1999-02-09 Nippon Sheet Glass Co Ltd 水滴感応式ワイパ制御装置
JPH1137927A (ja) * 1997-07-22 1999-02-12 Nippon Sheet Glass Co Ltd レインセンサを備えた透明基板
DE19943887A1 (de) 1998-09-15 2000-03-23 Bosch Gmbh Robert Optischer Sensor
JP2002524756A (ja) * 1998-09-15 2002-08-06 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 光学センサ
EP0999104A3 (fr) * 1998-11-02 2003-09-17 Central Glass Company, Limited Capteur de pluie et système d'exposition pour hologramme
DE10049401A1 (de) * 2000-10-05 2002-04-25 Hsm Gmbh Feuchtigkeitssensor
DE10132889A1 (de) * 2001-07-06 2003-01-23 Bosch Gmbh Robert Optischer Sensor zur Erfassung einer Benetzung einer Oberfläche
EP1451557B1 (fr) * 2001-11-27 2008-08-13 Robert Bosch GmbH Detecteur de pluie, en particulier pour vehicule automobile
DE10229239A1 (de) * 2002-06-28 2004-01-15 Robert Bosch Gmbh Regensensor, insbesondere für ein Kraftfahrzeug
JP2004077297A (ja) * 2002-08-19 2004-03-11 Nippon Sheet Glass Co Ltd 結露検出装置
DE10314704A1 (de) * 2003-03-31 2004-10-14 Robert Bosch Gmbh Regensensor, insbesondere für ein Kraftfahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006040241A1 *

Also Published As

Publication number Publication date
KR20070083692A (ko) 2007-08-24
JP2007512521A (ja) 2007-05-17
WO2006040241A1 (fr) 2006-04-20
US20090161109A1 (en) 2009-06-25
JP4488531B2 (ja) 2010-06-23
DE102004050765A1 (de) 2006-04-27

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