EP2323424A1 - Système de reproduction audio pour un véhicule - Google Patents

Système de reproduction audio pour un véhicule Download PDF

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Publication number
EP2323424A1
EP2323424A1 EP10013745A EP10013745A EP2323424A1 EP 2323424 A1 EP2323424 A1 EP 2323424A1 EP 10013745 A EP10013745 A EP 10013745A EP 10013745 A EP10013745 A EP 10013745A EP 2323424 A1 EP2323424 A1 EP 2323424A1
Authority
EP
European Patent Office
Prior art keywords
voice coil
audio
vehicle
emergency call
audio playback
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Withdrawn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
EP10013745A
Other languages
German (de)
English (en)
Inventor
Viktor Eisner
Timm Schwerdtfeger
Michael Fichte
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP2323424A1 publication Critical patent/EP2323424A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Definitions

  • the present invention relates to an audio playback system for a vehicle, in particular an audio playback system with an emergency call device.
  • emergency call devices In vehicles, such as Passenger cars or trucks emergency call devices are used, which can automatically transmit an emergency signal to an emergency call center, for example, in an accident.
  • the emergency call device can provide communication between the emergency call center and the occupants of the injured vehicle in an accident situation.
  • the communication between the emergency call center and the occupants of the crashed vehicle usually includes a voice communication in which voice information is output from the emergency call center via a built-in speaker in the emergency call device to the occupants, and voice information of the occupants via a built-in microphone with the help of Emergency call device to be transmitted to the emergency call center.
  • an emergency call device only a single-sided voice transmission may be provided, wherein voice information is transmitted from the emergency call center to the occupants of the vehicle in an emergency situation via the loudspeaker.
  • the speaker of the emergency call device should be arranged in an interior of the vehicle so that it can radiate audio information unhindered. Particularly suitable locations for such a speaker are, for example, in a center console or in a dashboard of the vehicle. However, the installation spaces in a vehicle are very limited.
  • mounting positions for a speaker which provide good speech intelligibility, especially for a driver of the vehicle, are also preferably used by, for example, telephone handsets or music playback devices of the vehicle.
  • the EP 1 103 936 B1 an emergency call device for vehicles equipped with audio equipment.
  • the emergency call device transmits in an emergency situation via at least one loudspeaker of the audio device acoustic emergency signals in the vehicle interior.
  • the loudspeaker can be connected to the emergency call device via a controllable and normally closed switch.
  • a speaker of an audio device of the vehicle can be used together with the emergency call device, so that less installation space in the vehicle is required for accommodating two separate loudspeakers.
  • an emergency call device For a reliable operation of an emergency call device, in particular in the event of an accident, it is important that the emergency call device can be operated independently of other devices of the vehicle.
  • an emergency call device according to the EP 1 103 936 B1 Therefore, there is a risk that the switch for coupling the emergency call device with the speaker in the event of an accident does not establish a reliable connection between the speaker and the emergency call device.
  • additional costs are incurred through the use of the additional switch and associated control.
  • Object of the present invention is therefore to provide a reliable and cost-effective emergency call device for a vehicle, which also uses the smallest possible space in the vehicle.
  • an audio reproduction system for a vehicle.
  • the audio playback system includes a first audio playback device such as a radio, a telephone handsfree, or other audio playback device that provides a first electrical audio signal at a speaker output of the first audio playback device.
  • the audio playback system further includes a second audio playback device, such as an emergency call device, that provides a second electrical audio signal at a speaker output of the second audio playback device.
  • the first and the second electrical audio signal may be suitable, for example, for directly controlling a loudspeaker or a comparable electromagnetic transducer.
  • the audio playback system further includes a double voice coil speaker having a first voice coil and a second voice coil for driving a diaphragm of the dual voice coil speaker.
  • the speaker output of the first audio playback device is coupled to the first voice coil of the dual voice coil speaker and the speaker output of the second audio playback device is connected to the second voice coil of the first audio playback device Double voice coil speaker coupled.
  • the second audio playback device eg the emergency call device, may be configured such that in an emergency it transmits acoustic signals via the double voice coil loudspeaker to an interior of the vehicle.
  • double voice coil speaker By sharing the double voice coil speaker from the first audio playback device and the second audio playback device, space in the vehicle can be saved because there are no separate speakers for the first audio playback device and the second audio playback device.
  • the use of the double voice coil speaker eliminates the need for another device for selectively coupling the first audio playback device and the second audio playback device to the loudspeaker, so as to ensure in an accident that playback of the second electrical audio signal from the second audio playback device, such as the emergency call device, is reliable works.
  • the first voice coil and the second voice coil are galvanically isolated. Due to the galvanic separation of the two voice coils, a mutual influence of the first audio playback device and the second audio playback device can be avoided, especially in an accident. This increases the reliability of the emergency call device.
  • the double voice coil speaker may be arranged, for example, in a center console of the vehicle.
  • the arrangement of the double voice coil loudspeaker in the center console of the vehicle achieves good speech intelligibility, which is advantageous both for the first audio reproduction device, such as the first audio reproduction device. a telephone hands-free device, as well as for the second audio playback device, such as a telephone. the emergency call device,. is particularly beneficial.
  • the double voice coil speaker By sharing the double voice coil speaker by both the first audio playback device and the second audio playback device, space in the vehicle can be saved. Since no additional device is required for selectively coupling the speaker to either the first or the second audio playback device, the audio playback system, and thus the vehicle, can be manufactured inexpensively.
  • the sole figure shows a schematic representation of an audio playback system according to an embodiment of the present invention.
  • the sole figure shows an audio playback system 1 for a vehicle.
  • the audio playback system 1 includes a first audio playback device 2, a second audio playback device 5, and a dual voice coil speaker 8.
  • the first audio playback device 2 may be, for example, a radio, telephone handsfree, or other audio playback device of the vehicle.
  • the second audio playback device 5 is, for example, an emergency call device, a so-called e-call device (Emergericy Call device), via which, for example, in the event of an accident, communication between an occupant of the vehicle and an emergency call center can be established.
  • e-call device Emergericy Call device
  • the first audio reproduction apparatus 2 has two terminals 3 and 4 for connecting a loudspeaker.
  • the audio playback device 2 may also have further ports for connecting additional speakers.
  • the further loudspeakers may include, for example, loudspeakers in the doors of the vehicle or a rear of the vehicle.
  • the connections 3 and 4 can be provided, for example, for connecting a so-called center loudspeaker, which is preferably arranged along a longitudinal central axis of the vehicle.
  • the terminals 3 and 4 are coupled, as shown in the figure, to a first voice coil 10 of the double voice coil speaker 8.
  • the double voice coil loudspeaker 8 may, for example, be arranged in a dashboard or a center console of the vehicle, preferably substantially centrally with respect to a width orientation of the vehicle in the vehicle interior. This achieves good speech intelligibility for both a driver and a passenger of the vehicle.
  • the second audio reproduction device 5, e.g. an emergency call device has two ports 6 and 7 for connecting a loudspeaker.
  • the terminals 6 and 7 are, as shown in the figure, coupled to a second voice coil 11 of the Doppelschwingspulenlaut Kirs 8.
  • the double voice coil loudspeaker 8 comprises, in addition to the first voice coil 10 and the second voice coil 11, a loudspeaker diaphragm 9, which is activated both by the first voice coil 10 and by the second voice coil 11.
  • the double voice coil speaker 8 is suitable for reproducing audio signals due to a first electric audio signal from the first audio reproducing apparatus 2 and a second electric audio signal from the second audio reproducing apparatus 5. Switching between the two audio playback devices 2, 5 is not required. If both audio playback devices 2, 5 simultaneously provide electrical audio signals, the double voice coil loudspeaker 8 outputs an audio signal which corresponds to a superposition of the two electrical audio signals.
  • the first voice coil 10 is galvanically separated from the second voice coil 11, the first audio playback device 2 and the second audio playback device 5 do not interfere with each other, so that even in an accident, a possible malfunction of the first audio playback device audio output from the second audio playback device 5, ie Emergency call device, not impaired.
  • the double voice coil speaker 8 is driven only with electric audio signals of the first audio reproduction apparatus 2 via the first voice coil 10. Due to the arrangement of the Doppelschwingsbulenlautsammlungers 8 in the center console of the vehicle, the Doppelschwingspulenlaut Kirer 8 is therefore particularly suitable as a loudspeaker speakerphone for a mobile phone or as a so-called center speaker of an audio or entertainment system of the vehicle.
  • the emergency call device 5 is activated, for example, by crash sensors or airbag sensors.
  • the emergency call device 5 can, for example, record contact with an emergency call center via a radio link. Via this radio link data of the vehicle, such as a current position of the vehicle, and voice data can be transmitted.
  • Speech data transmitted from the emergency call center to the emergency call device 5 is output via the terminals 6, 7 and the second voice coil 11 to the occupants of the vehicle by means of the double voice coil loudspeaker 8.
  • the emergency call device 5 may be coupled to the first audio reproduction device 2 so as to drive the first audio reproduction device 2 such that the first audio reproduction device 2 does not provide an electric audio signal at its outputs 3, 4 when the emergency call device 5 applies electrical audio signals to its terminals 6, 7, whereby the speech intelligibility of the speech output of the emergency call device is improved.
  • the speech information can still be reproduced from the emergency call device via the double voice coil loudspeaker 8 since the two voice coils 10, 11 independently of one another Activate diaphragm 8. This ensures a reliable voice output of the emergency call device 5 even in the event of an accident. In addition, only a minimal space is required by the common use of the Doppelschwingspulenlaut Maschineners and achieved a cost-effective implementation of Notruffunktionlois.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Alarm Systems (AREA)
EP10013745A 2009-11-14 2010-10-18 Système de reproduction audio pour un véhicule Withdrawn EP2323424A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009053385A DE102009053385A1 (de) 2009-11-14 2009-11-14 Audiowiedergabesystem für ein Fahrzeug

Publications (1)

Publication Number Publication Date
EP2323424A1 true EP2323424A1 (fr) 2011-05-18

Family

ID=43472889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10013745A Withdrawn EP2323424A1 (fr) 2009-11-14 2010-10-18 Système de reproduction audio pour un véhicule

Country Status (2)

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EP (1) EP2323424A1 (fr)
DE (1) DE102009053385A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014175724A1 (fr) * 2013-04-26 2014-10-30 Knowles Ipc (M) Sdn. Bhd. Haut-parleur à double bobine
WO2017093007A1 (fr) * 2015-12-04 2017-06-08 Volkswagen Aktiengesellschaft Système audio pour véhicule et procédé de commande dudit système audio
FR3052321A1 (fr) * 2016-06-02 2017-12-08 Peugeot Citroen Automobiles Sa Vehicule automobile equipe d'un systeme audio integre et d'un boitier d'appel d'urgence

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015205686B4 (de) * 2015-03-30 2022-12-22 Volkswagen Aktiengesellschaft Notfall-Meldevorrichtung in einem Kraftfahrzeug
DE102016006382A1 (de) * 2016-05-24 2017-11-30 Audi Ag Verfahren zum Betrieb einer Notrufeinrichtung für ein Kraftfahrzeug und zugehöriges Kraftfahrzeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828634A1 (de) * 1988-08-24 1989-06-29 Daimler Benz Ag Akustische informations- und warnvorrichtung in einem fahrzeug
DE29803757U1 (de) * 1998-03-05 1998-08-13 Litzmanski Reiner Auto-Notruf-System (ANS)
EP1106966A2 (fr) * 1999-12-01 2001-06-13 Mannesmann VDO AG Agencement d'un haut-parleur dans un véhicule, notamment pour un système de navigation
WO2002003755A2 (fr) * 2000-07-05 2002-01-10 Daimlerchrysler Ag Systeme audio pour vehicule automobile
EP1103936B1 (fr) 1999-11-27 2004-06-30 Volkswagen Aktiengesellschaft Dispositif d'appel d'urgence pour véhicules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306522U1 (fr) * 1993-04-30 1993-06-09 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828634A1 (de) * 1988-08-24 1989-06-29 Daimler Benz Ag Akustische informations- und warnvorrichtung in einem fahrzeug
DE29803757U1 (de) * 1998-03-05 1998-08-13 Litzmanski Reiner Auto-Notruf-System (ANS)
EP1103936B1 (fr) 1999-11-27 2004-06-30 Volkswagen Aktiengesellschaft Dispositif d'appel d'urgence pour véhicules
EP1106966A2 (fr) * 1999-12-01 2001-06-13 Mannesmann VDO AG Agencement d'un haut-parleur dans un véhicule, notamment pour un système de navigation
WO2002003755A2 (fr) * 2000-07-05 2002-01-10 Daimlerchrysler Ag Systeme audio pour vehicule automobile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014175724A1 (fr) * 2013-04-26 2014-10-30 Knowles Ipc (M) Sdn. Bhd. Haut-parleur à double bobine
US9838794B2 (en) 2013-04-26 2017-12-05 Sound Solutions International Co., Ltd. Double coil speaker
WO2017093007A1 (fr) * 2015-12-04 2017-06-08 Volkswagen Aktiengesellschaft Système audio pour véhicule et procédé de commande dudit système audio
EP3996062A1 (fr) * 2015-12-04 2022-05-11 Volkswagen Aktiengesellschaft Groupe de véhicules et procédé de commande du dispositif audio
FR3052321A1 (fr) * 2016-06-02 2017-12-08 Peugeot Citroen Automobiles Sa Vehicule automobile equipe d'un systeme audio integre et d'un boitier d'appel d'urgence

Also Published As

Publication number Publication date
DE102009053385A1 (de) 2011-05-19

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