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EP2157371A3 - Method and switching for temperature regulation in a vehicle headlamp - Google Patents

Method and switching for temperature regulation in a vehicle headlamp Download PDF

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Publication number
EP2157371A3
EP2157371A3 EP20090450126 EP09450126A EP2157371A3 EP 2157371 A3 EP2157371 A3 EP 2157371A3 EP 20090450126 EP20090450126 EP 20090450126 EP 09450126 A EP09450126 A EP 09450126A EP 2157371 A3 EP2157371 A3 EP 2157371A3
Authority
EP
European Patent Office
Prior art keywords
interior
headlight
temperature regulation
headlamp
determined
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
EP20090450126
Other languages
German (de)
French (fr)
Other versions
EP2157371A2 (en
EP2157371B1 (en
Inventor
Michael Aichinger
Günther Krenn
Markus Lahner
Josef Plank
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.)
ZKW Group GmbH
Original Assignee
Zizala Lichtsysteme 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 Zizala Lichtsysteme GmbH filed Critical Zizala Lichtsysteme GmbH
Publication of EP2157371A2 publication Critical patent/EP2157371A2/en
Publication of EP2157371A3 publication Critical patent/EP2157371A3/en
Application granted granted Critical
Publication of EP2157371B1 publication Critical patent/EP2157371B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/18—Controlling the intensity of the light using temperature feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Die Erfindung betrifft ein Verfahren sowie ein Steuergerät zur Temperaturregulierung in einem Kraftfahrzeugscheinwerfer (1), welcher in seinem Scheinwerfer-Innenraum (3) eine Anzahl von LED-Lichtquellen (2) zur Erzeugung von einer oder mehreren Lichtfunktionen aufweist. Erfindungsgemäß wird im Betrieb des Scheinwerfers laufend die aktuell dem Scheinwerfer-Innenraum (3) zugeführte Leistungszufuhr ermittelt wird, weiters laufend die aktuell mögliche Leistungsabgabe aus dem Scheinwerfer-Innenraum (3) ermittelt wird, aus der ermittelten zugeführten Leistungszufuhr und der möglichen Leistungsabgabe eine Leistungsbilanz gebildet wird, und an Hand der Leistungsbilanz eine Entscheidung getroffen wird, ob und welche Wärmeregulierungsmaßnahmen für den Scheinwerfer-Innenraum (3) durchzuführen sind.

Figure imgaf001
The invention relates to a method and a control device for temperature regulation in a motor vehicle headlight (1), which in its headlight interior (3) has a number of LED light sources (2) for generating one or more light functions. According to the current headlight interior (3) supplied power supply is continuously determined during operation of the headlamp, further continuously the currently possible power output from the headlamp interior (3) is determined from the determined power supply supplied and the possible power output formed a current account and, on the basis of the current account, a decision is made as to whether and which heat adjustment measures are to be carried out for the headlight interior (3).
Figure imgaf001
EP09450126.9A 2008-08-11 2009-07-08 Method and switching for temperature regulation in a vehicle headlamp Active EP2157371B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0124708A AT507082B1 (en) 2008-08-11 2008-08-11 METHOD AND CONTROL DEVICE FOR TEMPERATURE REGULATION IN A MOTOR VEHICLE HEADLAMP

Publications (3)

Publication Number Publication Date
EP2157371A2 EP2157371A2 (en) 2010-02-24
EP2157371A3 true EP2157371A3 (en) 2011-11-23
EP2157371B1 EP2157371B1 (en) 2016-03-16

Family

ID=41395888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09450126.9A Active EP2157371B1 (en) 2008-08-11 2009-07-08 Method and switching for temperature regulation in a vehicle headlamp

Country Status (2)

Country Link
EP (1) EP2157371B1 (en)
AT (1) AT507082B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8754593B2 (en) 2011-05-02 2014-06-17 Tyco Electronics Corporation Light emitting diode assembly having active cooling
DE102012000623A1 (en) * 2012-01-14 2013-07-18 Volkswagen Aktiengesellschaft Temperature monitoring of lighting devices
DE102015009097A1 (en) * 2015-07-17 2017-01-19 Marcus Wallmeyer Headlight for a vehicle
AT517650B1 (en) 2015-09-08 2017-06-15 Zkw Group Gmbh Lighting device for a motor vehicle headlight
DE102018000080A1 (en) 2017-09-16 2018-06-14 Daimler Ag Method for operating a lighting device for a vehicle
FR3096757B1 (en) * 2019-05-29 2024-07-05 Valeo Vision Method of operating an automobile lighting device and automobile lighting device
JP7279196B2 (en) * 2019-05-29 2023-05-22 ヴァレオ ビジョン Method of operating automotive lighting system and automotive lighting system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335293A1 (en) * 2003-07-28 2005-02-17 Volkswagen Ag Lighting elements power regulation device especially for motor vehicle, has power of lighting element adjusted in relation to at least one temperature sensor measurement
EP1643188A1 (en) * 2004-09-29 2006-04-05 Osram Opto Semiconductors GmbH LED arrangement with cooling means and vehicle headlight
DE102005042095A1 (en) * 2004-09-08 2006-04-06 Denso Corp., Kariya Headlight system for motor vehicle has air blower driven at predetermined drive voltage with fan drive device for estimating heat release of headlight

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004276737A (en) 2003-03-14 2004-10-07 Koito Mfg Co Ltd Lighting equipment for vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335293A1 (en) * 2003-07-28 2005-02-17 Volkswagen Ag Lighting elements power regulation device especially for motor vehicle, has power of lighting element adjusted in relation to at least one temperature sensor measurement
DE102005042095A1 (en) * 2004-09-08 2006-04-06 Denso Corp., Kariya Headlight system for motor vehicle has air blower driven at predetermined drive voltage with fan drive device for estimating heat release of headlight
EP1643188A1 (en) * 2004-09-29 2006-04-05 Osram Opto Semiconductors GmbH LED arrangement with cooling means and vehicle headlight

Also Published As

Publication number Publication date
EP2157371A2 (en) 2010-02-24
EP2157371B1 (en) 2016-03-16
AT507082A4 (en) 2010-02-15
AT507082B1 (en) 2010-02-15

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