EP1508138A1 - Dispositif de conception acoustique pour un vehicule automobile - Google Patents

Dispositif de conception acoustique pour un vehicule automobile

Info

Publication number
EP1508138A1
EP1508138A1 EP03720416A EP03720416A EP1508138A1 EP 1508138 A1 EP1508138 A1 EP 1508138A1 EP 03720416 A EP03720416 A EP 03720416A EP 03720416 A EP03720416 A EP 03720416A EP 1508138 A1 EP1508138 A1 EP 1508138A1
Authority
EP
European Patent Office
Prior art keywords
interior
motor vehicle
hollow body
sound
deflecting
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Withdrawn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
EP03720416A
Other languages
German (de)
English (en)
Inventor
Marcus Hofmann
Roudolf Starobinski
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1508138A1 publication Critical patent/EP1508138A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes

Definitions

  • the invention relates to a device for noise design in a motor vehicle according to the kind defined in the preamble of claim 1.
  • a generic device is known from DE 44 35 296 AI. Such devices are intended to provide the driver of the motor vehicle, particularly when accelerating, with increased transmission of the noises generated by the internal combustion engine, on the one hand to enable a more intense driving experience and on the other hand to pass on more information about the load state of the internal combustion engine.
  • the deflection element according to the invention By means of the deflection element according to the invention between the output line and the interior cladding element, the sound waves generated by the sound transmission device and introduced via the output line are deflected in the direction of the interior, thereby increasing the sound effect.
  • This amplified sound effect leads to an 'acting on the deflecting force which then stimulates due to the connection of the deflection element with the interior trim element, the latter to oscillations or vibrations and thus provides for further amplification of the sound effect.
  • the interior of the motor vehicle can be insulated considerably better to protect it from disturbing external noise, without withholding acoustic information about the load state of the internal combustion engine from the driver.
  • a decoupling of the output line from the deflecting element and a possibility thereby given to amplify the vibrations of the interior trim element caused by the sound can be achieved if, in an advantageous development of the invention, between the output line and the deflecting element is arranged a flexible connecting element.
  • the deflection element has a hollow body. This represents an additional possibility for influencing the sound frequencies emitted into the interior, the volume of the hollow body being able to be varied in this connection.
  • FIG. 1 shows a first embodiment of the device according to the invention
  • FIG. 2 shows a first development of the device from FIG. 1;
  • FIG. 3 shows a second development of the device from FIG. 1;
  • FIG. 4 shows a third development of the device from FIG. 1;
  • FIG. 5 shows a development of the device from FIG. 4.
  • FIG. 6 shows a fourth development of the device from FIG. 1.
  • FIG. 1 shows a gas-carrying line 1 of an internal combustion engine 2, which is only indicated, for example an exhaust gas line or an intake line.
  • an input line 3 leads to a device 4 for making noise in the motor vehicle, not shown in its entirety, in which the internal combustion engine 2 is arranged in a manner known per se.
  • the device 4 the basic structure and mode of operation of which may be known, for example, from DE 100 42 012 AI, has a hollow body 5, inside which a sound transmission device, which in the present case is designed as an oscillatable membrane 6, is arranged, which transmits the hollow body 5 into two rooms , namely an entrance room 7 and an exit room 8.
  • the input space 7 is connected to the input line 3 and the output space 8 to an output line 9, which leads into an interior 10 of the motor vehicle.
  • the output line 9 is connected via a deflection element 11 to an inner lining element 12, a flexible connecting element 13 being arranged between the output line 9 and the deflection element 11.
  • the deflecting element 11 is attached essentially rigidly to the interior trim element 12.
  • the interior trim element 12 is part of an entire interior trim 14 which at least partially lines the interior 10 in a manner not shown, but can also be part of a dashboard (not shown).
  • the deflecting element 11 which is made of plastic, for example, deflects the sound waves arriving via the output line 9, which leads to an acoustic flow and thus to an intensification of the sound effect in the interior 10 leads.
  • the deflection element 11 has an angle of substantially 90 ° to this, which has proven to be the most suitable for the amplification of the sound waves, which is explained in more detail below. In special installation cases, an angle of the deflecting element 11 different from 90 ° is of course also conceivable.
  • the interior trim element 12 Due to the reaction force or counterforce generated on the deflection element 11 due to the described acoustic flow and indicated by an arrow, the same applies a force to the interior trim element 12, which in turn causes it to oscillate or vibrate and thus generate its own sound. These vibrations of the interior trim element 12 further amplify the acoustic information described for the driver with regard to the load state of the internal combustion engine 2.
  • the interior trim element 12 is decoupled from the interior trim 14 in order to prevent the entire interior trim 14 from vibrating and the interior trim element 12 an independent possibility to provide vibration radiation. This makes it possible to equip the interior trim element 12 with a special geometry in order to achieve a further possibility for influencing the sound generation. However, this special geometry of the interior trim element 12 will not be discussed in more detail below.
  • FIG. 2 shows a development of the device 4 from FIG. 1.
  • an absorption material 15 is arranged at the exit of the device 4, that is to say at the transition of the deflecting element 11 into the interior 10, which influences the sound radiation into the interior 10.
  • the absorption material 15 can have an acoustic resistance of, for example, 40 rails. The acoustic resistance generated results in a further force which acts on the interior trim element 12.
  • FIG. 3 A further embodiment of the device 4 from FIG. 1 is shown in FIG. 3.
  • a constriction element 16 is arranged at the exit or transition into the interior 10, which can be connected to the interior trim element 12 or the deflection element 11 and extends into the interior 10 ,
  • the constriction element 16 By means of the constriction element 16, the flow velocity from the deflection element 11 into the interior 10 is increased and thus an increase in the acoustic flow described above is achieved, which leads to a higher resultant force on the deflection element 11 and thus also to greater vibration excitation of the interior trim element 12.
  • the deflection element 11 has a hollow body 17, which is connected via line elements 17a and 17b on the one hand via the flexible connecting element 13 to the outlet line 9 and on the other hand to the interior trim element 12.
  • a further influence on the sound waves generated or transmitted by the sound transmission device or membrane 6 is achieved by the hollow body 17, this influence of course being dependent on the shape and in particular on the volume of the hollow body 17 and can be determined by changing these sizes.
  • the hollow body 17 is connected to the interior trim element 12 by means of a rigid, rod-shaped connecting element 18.
  • FIG. 5 shows a development of the embodiment according to FIG. 4, in which case the hollow body 17 has two volumes, namely a first volume 19 and a second volume 20.
  • the first volume 19 is connected to the outlet line 9 via the line element 17a and the flexible connecting element 13 and the second volume 20 is connected to the interior trim element 12 via the line element 17b.
  • a further line element 17c is provided to connect the first volume 19 to the second volume 20.
  • the hollow body 17 is connected to the interior trim element 12 via the rigid connection element 18, for which purpose the connection element 18 runs from the interior trim element 12 to the first volume 19.
  • FIG. 6 shows a further embodiment of the device 4, which in this case has a widening element 21 at the exit into the interior 10, which, in contrast to the constriction element 16 according to FIG. 3, ensures a reduction in the reaction force on the deflection element 11 and thus likewise serves to influence the sound radiation in the interior 10.
  • FIGS. 1 to 6 All of the embodiments shown in FIGS. 1 to 6 can be combined with one another in any manner, provided that they are not obviously mutually exclusive.
  • the absorption material 15 can be provided in all embodiments and the decoupling of the interior trim element 12 from the interior trim 14 is also conceivable.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un dispositif de conception acoustique pour un véhicule automobile, ledit dispositif présentant au moins une cavité divisée en au moins deux chambres par au moins une unité de transmission du son. Selon l'invention, une chambre communique avec une partie d'acheminement de gaz d'un moteur à combustion interne monté dans le véhicule automobile, tandis qu'une autre chambre est reliée acoustiquement à l'habitable du véhicule par l'intermédiaire d'une conduite de sortie. Cette dernière est reliée à un élément d'habillage intérieur par l'intermédiaire d'un élément de déviation sensiblement creux. Ce dernier est conçu de manière rigide de façon à pouvoir transmettre à l'élément d'habillage intérieur les forces appliquées audit élément de déviation en raison du rayonnement du son dans l'habitacle.
EP03720416A 2002-05-29 2003-04-03 Dispositif de conception acoustique pour un vehicule automobile Withdrawn EP1508138A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10223872 2002-05-29
DE2002123872 DE10223872A1 (de) 2002-05-29 2002-05-29 Vorrichtung zur Geräuschgestaltung bei einem Kraftfahrzeug
PCT/EP2003/003480 WO2003100765A1 (fr) 2002-05-29 2003-04-03 Dispositif de conception acoustique pour un vehicule automobile

Publications (1)

Publication Number Publication Date
EP1508138A1 true EP1508138A1 (fr) 2005-02-23

Family

ID=29432415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720416A Withdrawn EP1508138A1 (fr) 2002-05-29 2003-04-03 Dispositif de conception acoustique pour un vehicule automobile

Country Status (4)

Country Link
EP (1) EP1508138A1 (fr)
JP (1) JP2005527863A (fr)
DE (1) DE10223872A1 (fr)
WO (1) WO2003100765A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6932189B2 (en) * 2001-09-24 2005-08-23 Daimlerchrysler Ag Device for noise structuring in a motor vehicle
DE10223873A1 (de) * 2002-05-29 2003-12-11 Daimler Chrysler Ag Vorrichtung zur Geräuschgestaltung bei einem Kraftfahrzeug
JP4673107B2 (ja) * 2005-03-29 2011-04-20 富士重工業株式会社 車両のエンジン音導入構造
JP4673108B2 (ja) * 2005-03-29 2011-04-20 富士重工業株式会社 車両のエンジン音導入構造
DE102005025092B3 (de) * 2005-06-01 2006-04-06 Dr.Ing.H.C. F. Porsche Ag Schallübertragungseinrichtung
JP4689363B2 (ja) * 2005-06-20 2011-05-25 日産自動車株式会社 増音装置
FR2888186B1 (fr) * 2005-07-05 2008-09-26 Renault Sas Dispositif pour conditionner l'ambiance sonore de l'habitacle d'un vehicule
US7845466B2 (en) 2007-08-28 2010-12-07 Visteon Global Technologies, Inc. Sound generator with structurally and acoustically coupled sound radiation panel and method for manufacturing the same
DE102010036769B4 (de) * 2010-07-30 2023-07-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Soundsymposer zur Übertragung eines Geräusches in einem Kraftfahrzeug
JP2014234810A (ja) * 2013-06-05 2014-12-15 株式会社マーレ フィルターシステムズ 内燃機関の吸気音発生装置
DE102013114502B4 (de) 2013-12-19 2024-05-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Einrichtung zur Schallübertragung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4435296C2 (de) * 1994-10-01 2002-04-25 Bayerische Motoren Werke Ag Kraftfahrzeug mit einer Brennkraftmaschine
DE10042012B4 (de) * 1999-11-22 2004-08-19 Daimlerchrysler Ag Vorrichtung zur Geräuschgestaltung bei einem Kraftfahrzeug
DE10016104C2 (de) * 2000-03-31 2002-03-21 Audi Ag Vorrichtung zur Beschallung des Fahrgastraumes eines Kraftfahrzeuges
DE10102923C1 (de) * 2001-01-23 2002-05-23 Mahle Filtersysteme Gmbh Schallabstrahlvorrichtung für ein Kraftfahrzeug
JP3645864B2 (ja) * 2001-03-21 2005-05-11 ダイムラークライスラー アーゲー 自動車両における騒音構成のための装置
DE10114397A1 (de) * 2001-03-23 2002-09-26 Mahle Filtersysteme Gmbh Schallübertragungsvorrichtung für ein Kraftfahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03100765A1 *

Also Published As

Publication number Publication date
WO2003100765A1 (fr) 2003-12-04
DE10223872A1 (de) 2003-12-11
JP2005527863A (ja) 2005-09-15

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