WO2007048623A1 - Systeme de detection destine a un vehicule - Google Patents

Systeme de detection destine a un vehicule Download PDF

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Publication number
WO2007048623A1
WO2007048623A1 PCT/EP2006/010367 EP2006010367W WO2007048623A1 WO 2007048623 A1 WO2007048623 A1 WO 2007048623A1 EP 2006010367 W EP2006010367 W EP 2006010367W WO 2007048623 A1 WO2007048623 A1 WO 2007048623A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
sensor device
light
motor vehicle
evaluation
Prior art date
Application number
PCT/EP2006/010367
Other languages
German (de)
English (en)
Inventor
Martin Jeitner
Original Assignee
Preh Gmbh
Jenoptik Polymer Systems 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 Preh Gmbh, Jenoptik Polymer Systems Gmbh filed Critical Preh Gmbh
Priority to EP06828877A priority Critical patent/EP1943491A1/fr
Publication of WO2007048623A1 publication Critical patent/WO2007048623A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • 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
    • B60Q2300/332—Driving situation on city roads
    • B60Q2300/3321—Detection of streetlights
    • 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
    • B60Q2300/337—Tunnels or bridges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4266—Photometry, e.g. photographic exposure meter using electric radiation detectors for measuring solar light

Definitions

  • the invention relates to a sensor device in a motor vehicle for generating an electrical output signal as a function of a light incident on the motor vehicle comprising at least one photosensitive sensor which selectively detects the emitted light.
  • a variety of sensor devices are known with which, for example, the vehicle light is controlled or a vehicle air conditioning system is controlled.
  • sensors In order to be able to control the vehicle light as a function of the ambient brightness, sensors must be placed in the vehicle which detect the light in advance of the motor vehicle. In this case, the detection of tunnels and heavily shaded roads, such as avenues, to detect early to control the vehicle light as soon as possible and turn on, so that when it enters the lane area, the light is turned on, in which the diminished ambient brightness is present.
  • a manual operation of the light switch for the driving light by the driver of the motor vehicle is no longer necessary.
  • a device for a motor vehicle for measuring light with a plurality of sensor elements wherein a sensor element for measuring the light in the direction of travel of the motor vehicle is suitable.
  • the device also uses further sensor elements for determining the surface angle of a light source and a sensor element for determining the elevation angle of the light source, which radiates onto the motor vehicle.
  • optical elements are provided above the sensor elements, which guide the incident light in the direction of the sensor elements.
  • sun sensors which detect the incident light in the motor vehicle, wherein a subdivision of the detected range of incidence of sunlight is done in sectors.
  • the evaluation is carried out here by means of a corresponding evaluation, which determines therefrom the incident on the motor vehicle sunlight and the direction of incidence.
  • mainly photodiodes are used, which are coupled with temperature sensors, so that on the one hand the direction of solar radiation and on the other hand the temperature can be detected.
  • the light irradiation selectively detecting sensor device on the motor vehicle is known from EP 1 510 797 A1.
  • the sensor device consists of a three-dimensional circuit carrier with a plurality of mutually adjoining surfaces oriented in different directions, on which at least two sensors are arranged, each of which has an area oriented at an angle to this surface with an IR photodetector on both sides of a central surface in which the areas on which the IR photodetectors are arranged do not adjoin one another directly. In this way, a good direction-dependent detection of the light of a light source with respect to a motor vehicle can be detected.
  • the sensor device in this case has three sensors, which are aligned in directions different from each other. In addition to the two IR photodetectors, a photodetector for visible light is mounted on a centrally arranged surface. With this sensor device, a selective detection of the incident on the motor vehicle light is thus possible.
  • the object of the invention is to provide a sensor device with which a weather-independent detection of the incident light on the motor vehicle light, and the detection of artificial light is made possible.
  • the object is to provide a sensor device which makes it possible to detect a tunnel already noticeably ahead of the tunnel edge, so that the light of the motor vehicle can be switched on automatically even before entering the tunnel or the heavily shaded area. It is another object of the invention to provide a sensor device which can be produced inexpensively and with minimal means.
  • a sensor is integrated with the at least two different wavelengths of the light are detectable. Due to the construction of the sensor device according to the invention, it is now possible, with a sensor device and only a photosensitive sensor in addition to the brightness information and information about the color, ie the wavelength of light, to be considered in the evaluation and generation of an output signal. Due to the selective evaluation of the different spectral regions of the light incident on the motor vehicle, the nature of the tunnel, as well as its illumination, structure of the walls or the partial incidence of daylight has no influence on the function of the sensor, whereby a clear detection of the tunnel edge is made possible.
  • a sensor constructed in this way is weather-independent, since the driving situation or the environmental situation relative to the light incident on the motor vehicle can be evaluated on the basis of the color shifts and color changes. It is possible to safely distinguish artificially generated light in a tunnel from lack of daylight.
  • the senor is designed in such a way that three spectral regions of the light, advantageously red, green and blue, can be evaluated, as a result of which an unambiguous assignment of artificially produced light and daylight can be detected very easily.
  • a further advantage results when an optical element is arranged in front of the sensor so that the light incident on the motor vehicle is directed in the direction of the sensor.
  • the tunnel recognition is made possible by focusing on an area located in front of the motor vehicle and, moreover, the evaluation of the light emitted in advance in the sensor is facilitated.
  • FIG. 1 is a block diagram of an embodiment of the invention in a principal
  • the sensor device 1 consists of a sensor 2 and an amplifier 3, which is connected to a transmitter 4.
  • the transmitter 4 consists in this case at least of a microprocessor 6, which is connected in common with the sensor 2 and the amplifier 3 and further detects the information of other vehicle sensors 5 and / or against each other and / or charged with each other.
  • a switching signal 8 is then generated for a driving light module.
  • the sensor 2 is constructed in the illustrated embodiment as a selective sensor 2, with the three different spectral regions 10, 11, 12 can be detected.
  • the wavelength is detectable in addition to the brightness information.
  • the evaluation of the different wavelengths of the light L incident on the motor vehicle makes it possible to generate a switching signal 8 which selectively detects the specific light sources illuminating the motor vehicle environment and weights them separately in the evaluation electronics 4.
  • the three different signals of the sensor regions 10, 11, 12 in the representative color regions measured here differ according to the prevailing ambient conditions, so that a significant, evaluable change from the driving situation in open terrain, when approaching a tunnel, in the tunnel and when approaching can be detected, measured and evaluated at the tunnel exit.
  • This evaluation of the light L in the apron of the motor vehicle is reinforced by the fact that a measuring lens 9, preferably a lens 9, is mounted in front of the sensor 2, which projects the light L in advance of the motor vehicle onto the sensor 2.
  • a sensor 2 is used, for example, but not limited to three sensitive to light areas with coordinated spectral sensitivity, such as red, green and blue, wherein the different areas 10, 11, 12 for reasons of homogeneity also multiple nested on the sensor 2 can be formed ,
  • a trained according to the invention sensor training 1 allows the detection of a tunnel edge at a distance of up to 50 m and more in front of the tunnel edge, so that the headlights of the motor vehicle by the generated by the sensor device 1 switching signal 8 already at an approach to the tunnel and to the Tunnel edge at up to 50 m and more is possible.
  • the particular structure of the sensor 2 in the different areas 10, 11, 12 has the additional advantage that the sensor device 1 independent of the nature of the tunnel, such as its illumination, structure of the walls, the partial incidence of daylight, since the selective detection of the spectral regions of the incident light on the motor vehicle L, the function of the sensor 2 is independent of these factors.
  • Vehicle sensors 5 may in this case be, for example, sensors that include the dynamics and / or the distance and / or the intensity of the individual spectra and / or the vehicle speed and / or the sun sensor information in the evaluation.
  • the inventively designed sensor device 1 is usually mounted behind the windshield of a motor vehicle, so that the light L in the run-up of the motor vehicle by means of a suitable optical system 9 is projected onto the sensor 2. It is conceivable in this case to arrange only the optics 9, the sensor 2 and the amplifier 3 on a printed circuit board, together with the microcomputer 6 immediately behind the windshield. By means of a local network 7 in the motor vehicle, a forwarding of the switching signal 8 to the driving light module is then possible. But it is also conceivable to attach the transmitter 4 in a separately arranged in the vehicle circuit board.

Abstract

L'invention concerne un système de détection (1) destiné à un véhicule, conçu pour produire un signal électrique de sortie (8) en fonction d'une lumière (L) dirigée sur le véhicule. Le dispositif selon l'invention est composé d'au moins un capteur photosensible (2) détectant la lumière émise (2) de façon sélective, le capteur (2) étant capable de détecter au moins deux longueurs d'onde (10, 11, 12) de la lumière (L).
PCT/EP2006/010367 2005-10-28 2006-10-27 Systeme de detection destine a un vehicule WO2007048623A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06828877A EP1943491A1 (fr) 2005-10-28 2006-10-27 Systeme de detection destine a un vehicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005052099 2005-10-28
DE102005052099.5 2005-10-28

Publications (1)

Publication Number Publication Date
WO2007048623A1 true WO2007048623A1 (fr) 2007-05-03

Family

ID=37807947

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/010367 WO2007048623A1 (fr) 2005-10-28 2006-10-27 Systeme de detection destine a un vehicule

Country Status (2)

Country Link
EP (1) EP1943491A1 (fr)
WO (1) WO2007048623A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014214930A1 (de) * 2014-07-30 2016-02-04 Volkswagen Aktiengesellschaft Beleuchtungsvorrichtung zum Erzeugen einer optischen Markierung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6097023A (en) * 1993-02-26 2000-08-01 Donnelly Corporation Vehicle headlight control using imaging sensor
US6379013B1 (en) * 1999-01-25 2002-04-30 Gentex Corporation Vehicle equipment control with semiconductor light sensors
US6396040B1 (en) * 1998-10-12 2002-05-28 Control Devices, Inc. Ambient light sensor
US20030138131A1 (en) * 1997-04-02 2003-07-24 Stam Joseph S. Vehicle lamp control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6097023A (en) * 1993-02-26 2000-08-01 Donnelly Corporation Vehicle headlight control using imaging sensor
US20030138131A1 (en) * 1997-04-02 2003-07-24 Stam Joseph S. Vehicle lamp control
US6396040B1 (en) * 1998-10-12 2002-05-28 Control Devices, Inc. Ambient light sensor
US6379013B1 (en) * 1999-01-25 2002-04-30 Gentex Corporation Vehicle equipment control with semiconductor light sensors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014214930A1 (de) * 2014-07-30 2016-02-04 Volkswagen Aktiengesellschaft Beleuchtungsvorrichtung zum Erzeugen einer optischen Markierung

Also Published As

Publication number Publication date
EP1943491A1 (fr) 2008-07-16

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