FR2437321A1 - Automatic lighting system for road vehicle - has sensors which respond to light and moisture levels to adjust side lights and fog lamp as required - Google Patents

Automatic lighting system for road vehicle - has sensors which respond to light and moisture levels to adjust side lights and fog lamp as required

Info

Publication number
FR2437321A1
FR2437321A1 FR7827730A FR7827730A FR2437321A1 FR 2437321 A1 FR2437321 A1 FR 2437321A1 FR 7827730 A FR7827730 A FR 7827730A FR 7827730 A FR7827730 A FR 7827730A FR 2437321 A1 FR2437321 A1 FR 2437321A1
Authority
FR
France
Prior art keywords
lights
respond
sensors
light
lighting system
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.)
Granted
Application number
FR7827730A
Other languages
French (fr)
Other versions
FR2437321B1 (en
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.)
BRELAT MARC
Original Assignee
BRELAT MARC
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 BRELAT MARC filed Critical BRELAT MARC
Priority to FR7827730A priority Critical patent/FR2437321A1/en
Publication of FR2437321A1 publication Critical patent/FR2437321A1/en
Application granted granted Critical
Publication of FR2437321B1 publication Critical patent/FR2437321B1/fr
Granted 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
    • 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
    • B60Q2300/05—Special features for controlling or switching of the light beam
    • B60Q2300/052—Switching delay, i.e. the beam is not switched or changed instantaneously upon occurrence of a condition change
    • 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
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/14—Other vehicle conditions
    • B60Q2300/146—Abnormalities, e.g. fail-safe
    • 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
    • B60Q2300/312—Adverse weather
    • 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

Landscapes

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

Abstract

The automatic control of vehicle lighting depends upon prevailing conditions. The circuitry includes a delay system to avoid unnecessary lighting alterations due to momentary changes. Control can be overridden manually and the vehicle lights cannot be left on accidentally. Light level is detected by a floating base photo-transistor attached to the windscreen feeding an operation amplifier whose output supplies three threshold detecting circuits controlling side lights, dipped lights and stand-by lights. Threshold levels are set by potentiometers, delay being achieved by feedback capacitors across the amplifiers. Rain is detected by a printed circuit resistance sensor controlling a further amplifier. Any circuit fault automatically returns control to the manual mode. Fog lights can be similarly switched in by the detectors.
FR7827730A 1978-09-27 1978-09-27 Automatic lighting system for road vehicle - has sensors which respond to light and moisture levels to adjust side lights and fog lamp as required Granted FR2437321A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7827730A FR2437321A1 (en) 1978-09-27 1978-09-27 Automatic lighting system for road vehicle - has sensors which respond to light and moisture levels to adjust side lights and fog lamp as required

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7827730A FR2437321A1 (en) 1978-09-27 1978-09-27 Automatic lighting system for road vehicle - has sensors which respond to light and moisture levels to adjust side lights and fog lamp as required

Publications (2)

Publication Number Publication Date
FR2437321A1 true FR2437321A1 (en) 1980-04-25
FR2437321B1 FR2437321B1 (en) 1981-02-13

Family

ID=9213117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827730A Granted FR2437321A1 (en) 1978-09-27 1978-09-27 Automatic lighting system for road vehicle - has sensors which respond to light and moisture levels to adjust side lights and fog lamp as required

Country Status (1)

Country Link
FR (1) FR2437321A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610881A1 (en) * 1987-02-18 1988-08-19 Deshayes Pierre Automatic illumination device for the sidelights of motor vehicles
DE4204856A1 (en) * 1992-02-18 1993-08-19 Walter Lindner Parking lights for trailer and semi-trailer - are operated from trailer battery and controlled by light sensing switch
FR2720347A1 (en) * 1994-05-27 1995-12-01 Jacques Nosal Electronic module for automatic switching of motor vehicle external lights, e.g. dipped headlights, indicator and fog lamps
FR2754500A1 (en) * 1996-10-15 1998-04-17 Bosch Gmbh Robert PROJECTOR INSTALLATION FOR VEHICLE EMITTING A VARIABLE LIGHT BEAM
GB2338550A (en) * 1998-06-18 1999-12-22 Daimler Chrysler Ag Ambient light/rain sensor system for a vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132990A6 (en) * 1971-04-05 1972-11-24 Cretien Jean Paul

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132990A6 (en) * 1971-04-05 1972-11-24 Cretien Jean Paul

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610881A1 (en) * 1987-02-18 1988-08-19 Deshayes Pierre Automatic illumination device for the sidelights of motor vehicles
DE4204856A1 (en) * 1992-02-18 1993-08-19 Walter Lindner Parking lights for trailer and semi-trailer - are operated from trailer battery and controlled by light sensing switch
FR2720347A1 (en) * 1994-05-27 1995-12-01 Jacques Nosal Electronic module for automatic switching of motor vehicle external lights, e.g. dipped headlights, indicator and fog lamps
FR2754500A1 (en) * 1996-10-15 1998-04-17 Bosch Gmbh Robert PROJECTOR INSTALLATION FOR VEHICLE EMITTING A VARIABLE LIGHT BEAM
GB2338550A (en) * 1998-06-18 1999-12-22 Daimler Chrysler Ag Ambient light/rain sensor system for a vehicle
GB2338550B (en) * 1998-06-18 2000-05-24 Daimler Chrysler Ag Light/rain sensor system for a vehicle
US6337491B1 (en) 1998-06-18 2002-01-08 Daimlerchrysler Ag Light/rain sensing system for a vehicle

Also Published As

Publication number Publication date
FR2437321B1 (en) 1981-02-13

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Legal Events

Date Code Title Description
ST Notification of lapse