EP2168405A2 - Système d'éclairage pour véhicule automobile - Google Patents

Système d'éclairage pour véhicule automobile

Info

Publication number
EP2168405A2
EP2168405A2 EP08773568A EP08773568A EP2168405A2 EP 2168405 A2 EP2168405 A2 EP 2168405A2 EP 08773568 A EP08773568 A EP 08773568A EP 08773568 A EP08773568 A EP 08773568A EP 2168405 A2 EP2168405 A2 EP 2168405A2
Authority
EP
European Patent Office
Prior art keywords
motor vehicle
vehicle light
control device
light
fra
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Withdrawn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
EP08773568A
Other languages
German (de)
English (en)
Inventor
Mark Grinberg
Frank Bilz
Joachim Ripperger
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP2168405A2 publication Critical patent/EP2168405A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/18—Controlling the light source by remote control via data-bus transmission

Definitions

  • the invention relates to a motor vehicle lighting system.
  • the invention is based on the object to provide an economically manufacturable, in particular based on a light-emitting diode automotive lighting system, are observed by the statutory or quasi-legal requirements regarding the emitted luminous flux or with correlated with the emitted luminous flux sizes.
  • the invention is based on the idea that at least one - for a motor vehicle light, in particular a light source, more specific - control parameters in one of the motor vehicle light, in particular the light source, associated memory device is stored, and that this control parameter by a - for the motor vehicle light, in particular the Light source, non-specific - control device ("universal control device") is read to control the motor vehicle lamp, in particular the light source, to achieve a desired luminous flux suitable.
  • a preferred motor vehicle lighting system comprises a motor vehicle light which comprises at least one light source, a memory device for storing a control parameter specific to the motor vehicle light, in particular the type of motor vehicle light or the light source, and at least one motor vehicle light control device which is used to control the motor vehicle light, in particular the light source. is set up in dependence on the control parameter.
  • a light source may comprise one or more light emitting diodes.
  • a motor vehicle light control device can be universally used for controlling various motor vehicle lights, in particular light sources, or different types of motor vehicle lights, in particular types of light sources, and thus can be produced more economically due to volume advantages.
  • the motor vehicle lighting control device can comprise a programmably configured microcontroller, suitable switching elements, suitable driver modules, a pulse width modulation module and / or suitable storage means.
  • the new, for the replacement motor vehicle light or replacement light source specific control parameters can be read by the existing motor vehicle lighting control device, and based on this control parameter, the replacement motor vehicle light or replacement light source can be controlled properly ,
  • the vehicle lighting system comprises a plurality of motor vehicle lights, each containing a light source.
  • specific control parameters are stored for the types of motor vehicle lights.
  • a motor vehicle lighting control device is set up to control the motor vehicle lights depending on the respective control parameters.
  • the memory device of the motor vehicle light in particular the light source, assigned, for example by being so connected to the motor vehicle light, in particular the light source, that it is not mechanically non-destructive separable from this.
  • the storage device is arranged with the motor vehicle light, in particular the light source, or the motor vehicle lights within a common first housing.
  • the storage device is interchangeable with the motor vehicle light, in particular the light source, or the motor vehicle lights, in particular by the replacement of the first housing.
  • the storage device is carried indirectly or directly by the motor vehicle light.
  • a preferred motor vehicle lighting system provides a particular interchangeable support means by which the storage device and the motor vehicle lamp or the light source or the motor vehicle lights are worn directly or indirectly, and by which the motor vehicle lamp control device is preferably not worn.
  • the Kraft Vietnamese Vietnamese-control device is not disposed in the first housing.
  • the motor vehicle light control device, the storage device and the motor vehicle light, in particular the light source, or the motor vehicle lights and possibly the first housing are arranged together in a second housing.
  • the motor vehicle light control device is independent of the storage device and / or the motor vehicle light, in particular the light source, and optionally the first housing interchangeable.
  • the motor vehicle light control device automatically reads the control parameter (s) from the memory device after activation thereof and / or before the activation of the motor vehicle light, to ensure that the one or more motor vehicle lights or motor vehicle lights currently being installed are always included Control parameter is used for control.
  • Another preferred motor vehicle lighting system has at least one further motor vehicle light, which is controlled by the motor vehicle light control device.
  • the motor vehicle light control device In the context of the invention is also a motor vehicle with at least two vehicle lighting systems and with a central control device for controlling the motor vehicle light control device of the vehicle lighting systems.
  • the aforementioned volume advantage is achievable, in particular, in the production of a motor vehicle set comprising various motor vehicle types in which different motor vehicle types contain different types of motor vehicle lights, in which the motor vehicle light systems of different motor vehicle types contain the same motor vehicle light control device, and in which the memory devices in FIG various types of vehicle lights different control parameters are stored, each associated with the corresponding type of vehicle lights.
  • Pulse width modulation is a type of modulation in which a technical quantity (such as current or voltage) changes between two values.
  • the duty cycle is modulated at a constant frequency.
  • the duty cycle indicates, for example, the ratio of the length of the switched-on state (pulse duration) to the period duration.
  • the duty cycle is varied such that the light emitting diode in the active state of the motor vehicle lamp substantially outputs a constant average luminous flux, wherein the average luminous flux is determined for example over five PWM pulse durations.
  • the luminous flux generated by a light-emitting diode decreases sharply over time due to a temperature effect.
  • the generated luminous flux can decrease by 30 percent after only 3 seconds of illumination. Due to legal requirements in particular, however, even after 5 seconds, a predetermined minimum To generate luminous flux.
  • the LED would be from the beginning to provide increased electrical power. However, this would lead in particular immediately after switching on the motor vehicle light to a particularly high, far above the predetermined minimum luminous flux lying luminous flux, which would lead to dazzling other road users. This is preferably prevented by increasing the duty cycle over time.
  • the duty cycle is varied such that the light emitting diode in the active state of the motor vehicle lamp substantially outputs a constant average luminous flux, wherein the average luminous flux is determined for example over five PWM pulse durations.
  • substantially constant average luminous flux is to be interpreted broadly, since it is only important to reduce the average generated luminous flux, in particular immediately after switching on the motor vehicle light by means of the pulse width modulation in order to avoid glare.
  • the duty cycle is preferably set according to the predetermined minimum luminous flux.
  • the motor vehicle light is a direction indicator, wherein the motor vehicle light control device is set up such that the motor vehicle light is alternately switched to active and inactive to realize the turn signal function, and that the duty cycle, in particular the average duty cycle, is smaller during the first active state than during the second active state.
  • the duty cycle may be constant or variable during an active state, in particular also increase with time during an active state.
  • control parameter information about the applied duty cycle in particular over the time course of the duty cycle or the assignment of a duty cycle to an active period and stored, for example in the form of a mathematical function together with corresponding parameters or in the form of a table in the memory device ,
  • control parameters are advantageously stored as control parameters in the memory device one, several or all of the following information:
  • Temperature behavior e.g., inrush current
  • Figures 1 and 2 show a simplified schematic diagram of a motor vehicle lighting system.
  • FIG. 1 shows a headlamp module SW of a motor vehicle with a direction indicator module FRA as a motor vehicle light, which comprises at least one light-emitting diode LED as the light source.
  • the direction indicator module FRA and a memory device SPE are accommodated within a replaceable housing G.
  • the memory device SPE information about the time course of the above-described pulse duty factor for the pulse width modulation is stored, which corresponds to the LED type of the LED light emitting diode, which is thus adapted to their specific temperature effect.
  • a decentralized motor vehicle light control device (control device) STE arranged in the housing of the headlight module SW supplies the light-emitting diode with voltage from a voltage supply device DC.
  • the voltage provided by the voltage supply device DC is converted by the control device STE, which may also comprise correspondingly configured driver modules, processor modules or switching modules, into a pulse width modulated periodically active and inactive voltage.
  • the current duty cycle to be used is read out of the storage device SPE by the control device STE, for example when driving, when the engine starts, at the beginning of each start of the direction indicator module FRA or at the beginning of each flash pulse.
  • the decentralized control device STE is separately from the direction indicator module FRA from the housing of the piggyback module SW removable or detachable from the Schweinwerfermodul SW.
  • the decentralized control device STE or other control devices can be used to control or supply voltage to other motor vehicle lights, such as a parking light POS, which is also assigned a memory device with corresponding control parameters.
  • the decentralized control device STE can be controlled via a central control device ZSTE, in order to be informed, for example, about a switched-on or switched-off direction indicator.
  • decentralized control device STE and the central control device ZSTE.
  • both devices can be combined to one or distributed over several control devices, driver modules or switching means can be realized.
  • FIG. 2 shows a variant alternative to the embodiment according to FIG.
  • the voltage supply device DC is now part of the control device STE or vice versa.
  • the headlight module SW now contains again several vehicle lights FRA.POS.
  • the motor vehicle lights are now together with a storage device SPE for storing - for the motor vehicle lights specific - assigned control parameters.
  • the motor vehicle lights FRA 1 POS are housed together with the storage device SPE in or on a common, replaceable from the headlight module SW housing G.

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention a pour objet un système d'éclairage pour véhicule automobile comprenant un éclairage de véhicule doté d'une source lumineuse, un dispositif de mémorisation servant à mémoriser un paramètre de commande spécifique au type d'éclairage du véhicule automobile et un dispositif de commande de l'éclairage de véhicule automobile servant à commander l'éclairage du véhicule automobile en fonction du paramètre de commande.
EP08773568A 2007-07-07 2008-06-21 Système d'éclairage pour véhicule automobile Withdrawn EP2168405A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007031801A DE102007031801A1 (de) 2007-07-07 2007-07-07 Kraftfahrzeugleuchtensystem
PCT/EP2008/005021 WO2009006995A2 (fr) 2007-07-07 2008-06-21 Système d'éclairage pour véhicule automobile

Publications (1)

Publication Number Publication Date
EP2168405A2 true EP2168405A2 (fr) 2010-03-31

Family

ID=40092581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08773568A Withdrawn EP2168405A2 (fr) 2007-07-07 2008-06-21 Système d'éclairage pour véhicule automobile

Country Status (3)

Country Link
EP (1) EP2168405A2 (fr)
DE (1) DE102007031801A1 (fr)
WO (1) WO2009006995A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010013561B4 (de) * 2010-03-31 2018-05-24 HELLA GmbH & Co. KGaA Vorrichtung und Verfahren zum Betreiben einer Leuchtmitteleinheit
DE102024135592B3 (de) * 2024-12-02 2025-12-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zum Betreiben einer Fahrzeugleuchte eines Kraftfahrzeugs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114124A1 (de) * 2001-03-22 2002-09-26 Hella Kg Hueck & Co Schaltungsanordnung
NL1025713C2 (nl) * 2004-03-12 2005-09-13 Nedap Nv Identificatiesysteem voor TL-buizen.
DE102006019149A1 (de) * 2005-05-24 2006-12-07 Erco Leuchten Gmbh Leuchte

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DE19748446A1 (de) * 1997-11-03 1999-05-06 Mannesmann Vdo Ag Vorrichtung zur Ansteuerung von Leuchtdioden
DE19818621A1 (de) * 1998-04-25 1999-10-28 Mannesmann Vdo Ag Schaltungsanordnung zur Einstellung der Helligkeit stromgesteuerter Leuchtdioden zur Beleuchtung einer Anzeige
US6333602B1 (en) * 1999-12-14 2001-12-25 Exfo Photonic Solutions Inc. Smart light source with integrated operational parameters data storage capability
DE10038194A1 (de) * 2000-03-31 2001-10-04 Volkswagen Ag Verfahren zur Einstellung der Außenlichtanlage sowie Scheinwerferregelanordnung beim Kraftfahrzeug
GB0110836D0 (en) * 2001-05-03 2001-06-27 Armstrong Niel A Selectable flash sequence for a road vehicle light system
DE10210951A1 (de) * 2002-03-13 2003-10-16 Opel Adam Ag Steuerungseinheit zur Einstellung von Tagesfahrlicht an einem Kraftfahrzeug und Verfahren zum Betreiben einer Außenbeleuchtung in einem Tagesfahrlichtbetrieb
DE10313246A1 (de) * 2003-03-25 2004-10-21 Sitronic Gesellschaft für elektrotechnische Ausrüstung mbH. & Co. KG Kraftfahrzeugleuchtenmodul
DE102005015603A1 (de) * 2005-04-05 2006-10-12 Dr.Ing.H.C. F. Porsche Ag Verfahren zum Erkennen der Lichtverhältnisse in der Umgebung eines Fahrzeugs und Vorrichtung zum Steuern eines Fahrzeugscheinwerfers und einer Fahrzeugleuchte
DE102005018175A1 (de) * 2005-04-19 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LED-Modul und LED-Beleuchtungseinrichtung mit mehreren LED-Modulen
DE102005022375A1 (de) * 2005-05-13 2006-11-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe und Beleuchtungssystem und Verfahren zum Betreiben einer elektrischen Lampe oder eines Beleuchtungssystems
WO2007104137A2 (fr) * 2006-03-13 2007-09-20 Tir Technology Lp Dispositif lumineux

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114124A1 (de) * 2001-03-22 2002-09-26 Hella Kg Hueck & Co Schaltungsanordnung
NL1025713C2 (nl) * 2004-03-12 2005-09-13 Nedap Nv Identificatiesysteem voor TL-buizen.
DE102006019149A1 (de) * 2005-05-24 2006-12-07 Erco Leuchten Gmbh Leuchte

Also Published As

Publication number Publication date
WO2009006995A3 (fr) 2009-03-26
DE102007031801A1 (de) 2009-01-08
WO2009006995A2 (fr) 2009-01-15

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