EP2352142A2 - Dispositif de compensation du bruit dans un véhicule automobile - Google Patents

Dispositif de compensation du bruit dans un véhicule automobile Download PDF

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Publication number
EP2352142A2
EP2352142A2 EP10014590A EP10014590A EP2352142A2 EP 2352142 A2 EP2352142 A2 EP 2352142A2 EP 10014590 A EP10014590 A EP 10014590A EP 10014590 A EP10014590 A EP 10014590A EP 2352142 A2 EP2352142 A2 EP 2352142A2
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
sound waves
noise
sleeping
area
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
EP10014590A
Other languages
German (de)
English (en)
Other versions
EP2352142A3 (fr
EP2352142B1 (fr
Inventor
Franz Kneissl
Horst-Peter Fingerhut
Martin Müller
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.)
MAN Truck and Bus SE
Original Assignee
MAN Truck and Bus SE
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 MAN Truck and Bus SE filed Critical MAN Truck and Bus SE
Publication of EP2352142A2 publication Critical patent/EP2352142A2/fr
Publication of EP2352142A3 publication Critical patent/EP2352142A3/fr
Application granted granted Critical
Publication of EP2352142B1 publication Critical patent/EP2352142B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • 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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/128—Vehicles
    • G10K2210/1282—Automobiles

Definitions

  • the invention relates to a device for noise compensation in a motor vehicle with a receiving device that detects occurring noises, with a signal generating device that generates at least one signal based on the detected noise and with at least one speaker, which generates on the basis of the signal Auslöschungsschallwellen and into the vehicle interior radiates out of phase with the sound waves of the noises occurring.
  • noise is one of the biggest stress factors as it has a negative effect on the autonomic nervous system. Fatigue, lack of concentration, nervousness and irritability are the consequences. In addition, constant, even subliminal noise effects permanent damage to the hearing.
  • devices with active noise compensation are known, which are based on the principle of phase-inverse sound. With such an active sound compensation, the sound waves occurring there are first recorded at the sound impact location, in particular in the region of the ear, by means of a sound pickup in the form of a microphone and fed to a filter for a 180 ° phase shift.
  • phase-shifted sound waves are finally transmitted via a loudspeaker, so that the recorded and the phase-shifted sound waves extinguish, at least for the most part.
  • a noise reduction of more than 15 dB can be achieved, whereby a noise reduction of 10 dB subjectively already acts as a halving of the volume.
  • headphones with active noise compensation have been available for some years and are used, for example, in the area of aircraft in both the cockpit and the passenger compartment.
  • an active vehicle interior noise compensation known to be compensated in particular by the vehicle engine emanating noise in the vehicle interior.
  • the described arrangement generates an electrical signal from a reference signal which is generated inter alia by means of a microphone which measures a noise field coming from the engine.
  • the electrical signal derived from the reference signal is amplified and applied to the loudspeaker 180 ° out of phase with the loudspeaker, in order to emit a counter-sound field which more or less neutralises the interfering noise.
  • the invention has for its object to provide a system for noise compensation for the vehicle interior, the driver during rest even a comfortable sleep that is not disturbed by noise, allows.
  • the system to be specified should have a relatively simple structure and preferably also be integrated into existing systems in the vehicle. Furthermore, the system should be used both in the field of commercial vehicles, in particular trucks and travel buses, as well as in the field of other vehicles, such as motor homes.
  • a device for noise compensation in a motor vehicle with a receiving device which detects occurring noises, with a signal generating device which generates at least one signal on the basis of the detected noises and with at least one loudspeaker which generates canceling sound waves on the basis of the signal and radiates into the vehicle interior , which are out of phase with respect to the sound waves of the noises occurring, have been developed such that the at least one loudspeaker is arranged in the vehicle interior such that the extinguishing sound waves are emitted in a region of a sleeping place.
  • a sleeping space of a vehicle is generally understood to mean a place at which at least one person can sleep and / or rest while driving or while the vehicle is at rest. This can either be a seat that can be moved into an at least partially lying position, as well as a sleeping space that is located in the area of a sleeping cabin. Under sleeping cabin turn, both the intended in a truck or bus rest room for the driver, as well as a suitably trained space in a motorhome is understood.
  • the device With the help of the device according to the invention, it is possible in a preferred manner to allow a person who is in the area of the sleeping area, a peaceful, restful sleep. This is achieved above all by the fact that within the vehicle perceivable noise, the noise cause is either in and / or outside of the vehicle are detected and emitted after evaluation of the noise by a speaker waves in the area of the sleeping area, which leads to a compensation the noise due to an at least partial extinction of the respective sound waves.
  • a mutual at least partial extinction of the sound waves is achieved in a preferred manner in that the disturbing sound waves and the extinguishing sound waves are shifted in phase against each other, in particular by a phase angle of 180 °.
  • At least one receiving device designed as a microphone is provided in the interior of the vehicle with which the occurring noises are recorded, a corresponding input signal is sent to a signal generation unit and the signal generation unit in turn generates an output signal on the basis of which at least one Speaker extinguishing sound waves generated to compensate for the noise occurring in the vehicle interior.
  • at least one loudspeaker in the vehicle interior is arranged in such a way that the extinguishing sound waves are radiated into an area of a sleeping space, in particular into a region of a sleeping space arranged in a separate sleeping cabin.
  • a separate sleeping compartment here is mainly an area of the vehicle interior to be understood, which can be separated either by a solid wall or by a curtain at least temporarily against the driver's workplace.
  • the at least one loudspeaker is arranged in such a way that the extinguishing sound waves are radiated at least into the head region, that is to say the region in which the head of a person sleeping or sleeping is usually located.
  • the receiving device and the speaker are integrated in a microphone-speaker unit.
  • a microphone-speaker unit can be advantageously arranged in the area of the sleeping area, in particular in the head area, that is to say the area of the sleeping area at which a person usually beds his head.
  • fasten such a unit to the inner wall either by means of appropriate fastening means or to integrate it into this.
  • an advantageous arrangement of the loudspeaker according to the invention the placement in the area of a bunk, preferably the bunk of a commercial vehicle, represents.
  • the speaker is advantageously arranged such that the extinguishing sound waves in the head area of the bunk, so the Berth, to be sent out.
  • a loudspeaker is used as at least one loudspeaker for emitting extinction sound waves, with which standard audio sounds can also be generated.
  • it makes sense to use speakers which are coupled to a music and / or television system of the vehicle for the device according to the invention carried out for noise compensation.
  • the speaker used for noise compensation also makes sense to connect the speaker used for noise compensation to a wake-up and / or alarm system.
  • a driver who sleeps in the area of the berth to indicate a danger, for example a fire or the exceeding of a cooling temperature in a refrigerated trailer, and / or to wake the driver to a desired wake-up time.
  • a driver is provided with a quiet sleeping space, preferably in the cab of a commercial vehicle. This measure ensures, in particular, that the driver finds a restful sleep during his rest breaks and is sufficiently recovered when resuming the ride.
  • FIG. 1 shows in a side view the integration of a device for noise compensation in a commercial vehicle cab 1.
  • a sleeping berth 4 is provided in the driver's sleeping area 11, which is arranged transversely to the direction behind the driver 5 and the passenger seat and is in the unfolded state ,
  • Both in the area of the backrest 12 of the driver's seat 5 and opposite in the area of the cab rear wall 9 each speaker 7 are provided.
  • microphones 10 are arranged on the loudspeakers 7 in such a way that the loudspeakers 7 together with the microphones 10 each represent a compact microphone loudspeaker unit.
  • the noises occurring in the area of the driver's sleeping place 11 are detected and transmit corresponding signals to a signal generating unit 8.
  • the signal generating unit 8 generates, on the basis of the input signals, at least one output signal on the basis of which the loudspeakers 7 generate canceling sound waves which are out of phase with the sound waves of the noises occurring so that the sound waves cancel each other out.
  • the extinction sound waves are shifted in their phase by 180 ° with respect to the phase of the sound waves of the noises occurring.
  • the extinction sound waves phase-shifted by 180 ° are radiated by means of the loudspeakers 7 into the area of the sleeping place 11, in which the head 6 of a sleeping or resting vehicle occupant is usually located.
  • the loudspeakers 7 and the signal generating unit 8 which represent means for actively compensating for noise occurring in the area of the driver's sleeping place 11, the cab rear wall 2, the side walls 9 and the cab floor 3 have passive sound insulation elements on their inside. These sound-absorbing elements 15 are designed such that they can absorb sound waves of a specific frequency and amplitude.
  • FIG. 2 In addition to a better illustration in FIG. 2 the in FIG. 1 shown in a side view driver's sleep 11 with a system according to the invention executed for noise compensation in a plan view. This in FIG. 2 shown system corresponds otherwise in its technical execution in connection with Figur1 already explained.
  • the noise compensation device used according to the invention compensates for noises occurring within the driver's cab 1, in particular in the area of the driver's sleeping place 11, with the aid of the so-called counter-noise principle.
  • FIGS. 1 and 2 show are here in the area of the berth 4 in the immediate vicinity of the head area, ie where the driver usually puts his head while resting or sleeping, provided loudspeaker 7, send out the extinction sound waves, the sound waves of the noise occurring in the area of the driver's sleep 11 at least largely extinguish.
  • noises occurring in the vehicle interior or perceptible without noise compensation can be caused both inside and outside the vehicle.
  • engine noise, traffic noise and / or noise caused by diesel-powered refrigeration units often has a disturbing effect on the sleep of a driver, especially a truck driver.
  • inventively designed system for noise compensation such noise is at least largely extinguished.
  • FIGS. 1 and 2 To be taken out system for noise compensation has two microphone speaker units 7, 10 and a signal generating unit 8, with which the system is controlled. If required, the loudspeakers 7 of the noise compensation system can also be used for audio reproduction in the driver's cab, in particular in the area of the sleeping area.
EP10014590.3A 2010-01-30 2010-11-13 Dispositif de compensation du bruit dans un véhicule automobile Active EP2352142B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010006303A DE102010006303A1 (de) 2010-01-30 2010-01-30 Geräuschkompensationseinrichtung in einem Kraftfahrzeug

Publications (3)

Publication Number Publication Date
EP2352142A2 true EP2352142A2 (fr) 2011-08-03
EP2352142A3 EP2352142A3 (fr) 2017-11-08
EP2352142B1 EP2352142B1 (fr) 2022-10-19

Family

ID=44022916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10014590.3A Active EP2352142B1 (fr) 2010-01-30 2010-11-13 Dispositif de compensation du bruit dans un véhicule automobile

Country Status (5)

Country Link
EP (1) EP2352142B1 (fr)
CN (1) CN102142251A (fr)
BR (1) BRPI1100576B1 (fr)
DE (1) DE102010006303A1 (fr)
RU (1) RU2472237C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081453A1 (de) 2011-08-24 2013-02-28 Continental Teves Ag & Co. Ohg Geräuschkompensiertes elektronisch geregeltes Bremssystem
DE102016001593A1 (de) 2016-02-11 2017-08-17 Audi Ag Verfahren zum Erzeugen eines Gegenschalls für eine Geräuschminderung in einem Kraftfahrzeug
CN106143369B (zh) * 2016-07-05 2018-07-03 同济大学 一种增程式电动汽车用噪声主动控制装置
CN106211008A (zh) * 2016-08-28 2016-12-07 吴浩 一种多功能扩音消音器
DE102017112761B3 (de) 2017-06-09 2018-09-20 Ask Industries Gmbh Verfahren zum Betrieb einer fahrzeugseitigen akustischen Signalerzeugungseinrichtung
DE102017220703B4 (de) 2017-11-20 2019-11-07 Audi Ag Verfahren zum Durchführen eines Telefonats
JP2020044879A (ja) * 2018-09-14 2020-03-26 トヨタ自動車株式会社 車両用音入出力装置
CN109327752A (zh) * 2018-11-01 2019-02-12 深圳市智驾实业有限公司 蓝牙拾音器、车载设备以及汽车

Citations (3)

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Publication number Priority date Publication date Assignee Title
WO1990009655A1 (fr) 1989-02-13 1990-08-23 Group Lotus Plc Suppression du bruit dans des vehicules
DE10231509B3 (de) 2002-07-12 2004-01-08 Audi Ag Verkleidungsteil für einen Fahrzeuginnenraum
DE102004031657A1 (de) 2004-06-30 2006-02-02 Volkswagen Ag Verfahren zum Unterdrücken von Geräuschen in einem Fahrzeuginnenraum

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JPH0883080A (ja) * 1994-09-12 1996-03-26 Matsushita Electric Ind Co Ltd 消音装置
WO2002098171A1 (fr) * 2001-05-28 2002-12-05 Mitsubishi Denki Kabushiki Kaisha Reproducteur / silencieux pour champ sonore stereophonique monte sur vehicule
RU2235370C2 (ru) * 2002-05-27 2004-08-27 Ефремов Владимир Анатольевич Способ понижения уровня шума авиамоторного средства и система для его реализации. варианты
RU2275520C2 (ru) * 2003-02-03 2006-04-27 Тольяттинский государственный университет Способ и устройство комплексного снижения шума транспортного средства
JP3843082B2 (ja) * 2003-06-05 2006-11-08 本田技研工業株式会社 能動型振動騒音制御装置
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009655A1 (fr) 1989-02-13 1990-08-23 Group Lotus Plc Suppression du bruit dans des vehicules
DE10231509B3 (de) 2002-07-12 2004-01-08 Audi Ag Verkleidungsteil für einen Fahrzeuginnenraum
DE102004031657A1 (de) 2004-06-30 2006-02-02 Volkswagen Ag Verfahren zum Unterdrücken von Geräuschen in einem Fahrzeuginnenraum

Also Published As

Publication number Publication date
DE102010006303A1 (de) 2011-08-04
EP2352142A3 (fr) 2017-11-08
BRPI1100576B1 (pt) 2020-02-18
EP2352142B1 (fr) 2022-10-19
RU2011103160A (ru) 2012-08-10
BRPI1100576A2 (pt) 2013-04-24
CN102142251A (zh) 2011-08-03
RU2472237C2 (ru) 2013-01-10

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