EP0992976A2 - Electro-acoustic apparatus for sound feed-back - Google Patents
Electro-acoustic apparatus for sound feed-back Download PDFInfo
- Publication number
- EP0992976A2 EP0992976A2 EP99116192A EP99116192A EP0992976A2 EP 0992976 A2 EP0992976 A2 EP 0992976A2 EP 99116192 A EP99116192 A EP 99116192A EP 99116192 A EP99116192 A EP 99116192A EP 0992976 A2 EP0992976 A2 EP 0992976A2
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- EP
- European Patent Office
- Prior art keywords
- signal processing
- processing unit
- noise
- pressure sensor
- sound pressure
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- 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.)
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Classifications
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- 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
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
-
- 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
- G10K2210/106—Boxes, i.e. active box covering a noise source; Enclosures
-
- 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
-
- 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
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3027—Feedforward
Definitions
- the invention relates to an electroacoustic noise feedback for a Motor vehicle according to the preamble of claim 1.
- the exhaust system and the are a source with strong load dependency Intake tract.
- An increase in the emitted sound from these excitation sources is because of the strict emission and External noise regulations are not effective. Otherwise the introduction these noise components into the interior thanks to high body insulation, those for reducing wind and rolling noise and for suppression disruptive, mechanical engine noise components required is largely prevented.
- a targeted mechanical introduction in the vehicle interior is possible in principle, but has changed the costs and the arrangement in the vehicle were found to be disadvantageous.
- the object of the invention is to provide an acoustic in a simple manner Feedback of the operating state of the engine in the interior of a Vehicle without the outside noise becoming too high or the body insulation would have to be reduced.
- An essential idea of the invention is the sound pressure in the intake or Exhaust tract record. These acoustic sources have a high one Load dependency. The recorded noises are then processed electronically and a loudspeaker system in the interior of the vehicle recorded. Even in a very simple embodiment of the invention can create a lifelike acoustic signal in the vehicle interior be transmitted. A vehicle occupant does not perceive this signal as synthesized or represented artificially.
- the sound pressure in the vicinity of the intake air opening or in the intake silencer or air filter box is preferferably, the sound pressure in the vicinity of the intake air opening or in the intake silencer or air filter box.
- the spectrum can be from a sonorous Brabbel "sound up to one Racing "sound can be varied depending on the requirement.
- the signal processing unit be designed so that in the interior of the motor vehicle recorded sound signal is changed depending on the speed to a desired level curve - for example a very even one Internal noise curve over the speed - to achieve.
- a load-dependent change in the recorded noise is also possible. All that would be required was the accelerator pedal or throttle position signal recorded by the signal processing unit and accordingly be taken into account.
- a particularly advantageous embodiment is characterized in that that a switching unit is provided with which the device can be deactivated or can be activated. You can either use the sound pressure sensor or the signal processing unit or the loudspeaker unit is switched off become. With this measure, the source of noise, such as desired, switched on or off by the vehicle operator.
- the deactivation or the activation can of course also depend on certain Driving operating conditions can be selected. For example, it is possible that the device according to the invention with an automatic transmission Manual switching mode (steptronics) only activated in manual switching mode becomes, so when a vehicle operator a more sporty driving style wishes. In normal automatic mode, the invention could Device must be deactivated, so that there is quieter acoustics. Naturally can the deactivation and activation also with one setting the engine characteristics or any other signals.
- the device according to the invention makes it particularly simple acoustic feedback with pleasant sounding sound components to create.
- the system increases especially in vehicles with high Performance improves driving safety and supports the driver acoustically.
- a device according to the invention only influences the interior noise, there is increased acoustic feedback to the vehicle occupants without that the environment is polluted.
- the invention Device only the already natural engine noise from the Intake or exhaust system imported into the interior of a vehicle, so that a natural, adaptable to the respective vehicle type Sound is achievable.
- a motor vehicle is shown schematically in plan view, which shows an engine with an intake tract 18.
- Intake tract 18 is a sound pressure sensor 12 in the form of a microphone shown, which picks up the natural engine noise in the intake area and delivers it to a signal processing unit 14 via a line.
- the signal processing unit 14 processes the signals from the sound pressure sensor 12 and outputs it to a loudspeaker unit 16, which is the one of the Signal device unit 14 converts generated signals into acoustic signals. Separate speakers or also the speakers can be used as speakers Speakers of a vehicle audio system are used.
- signal processing unit 14 filters and amplifies the signals emitted by the sound pressure sensor 12.
- FIG. 2 An example of a signal processing unit is shown in the form of a schematic Circuit diagram shown in Fig. 2.
- the signal from Sound pressure sensor 12 first passed through a high-pass filter 20 low-frequency sound components that lead to large membrane movements would eliminate.
- the signal output by the high-pass filter 20 becomes split into two branches. In a branch, the signal is replaced by a Low-pass filter 22 and then essentially to a potentiometer 26th headed, which depending on his attitude a more or less weakened Passes signal to an adder (+).
- the signal in the other branch runs to a further potentiometer 24 essentially unfiltered and therefore has broadband shares. After this Potentiometer 24 it is also fed to the adder (+). In the adder the two signals carried in the different branches are weighted added together and passed through a further low-pass filter 28, in which they are capped. After all, that's how it will be processed signals amplified in an amplifier 30 and sent to the speakers 16 delivered the vehicle. These convert the electrical generated in this way Signal into an acoustic signal, which is essentially a filtered, natural image of the noise recorded in the intake tract represents. By changing the weighting factors through adjustment the potentiometer 24 and 26 between broadband and low-pass portion can be simply adjust the sound impression. The adjustment is done with the present one Embodiment manually.
- the adjustment of the weight factors also due to the throttle valve position, the speed signal or the speed.
- the signal processing unit 14 connected to a CAN bus and still have an additional control unit that controls the Potentiometers 24 and 26 depending on the selected parameters takes over.
- the embodiment shown is also only a simple version a noise feedback device that in the intake or exhaust system recorded natural engine noise leads into the interior.
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- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Die Erfindung betrifft eine elektroakustische Geräuschrückführung für ein
Kraftfahrzeug gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an electroacoustic noise feedback for a
Motor vehicle according to the preamble of
Bei Personenkraftfahrzeugen ist es bekannt, ein Sounddesign durchzuführen. Grundsätzlich sollte den Fahrzeuginsassen ein hohes Maß an Akustikkomfort geboten werden, wobei insbesondere auf einen geringen Gerauschpegel Wert zu legen ist. Andererseits soll der Fahrer aber auch den Betriebszustand des Motors exakt kennen, wozu eine Fahrgeräuschrückkopplung, insbesondere eine Rückkopplung des Motorgeräusches, zweckmäßig ist. Im übrigen gilt es, die Emissionsvorschriften (dazu gehören auch die Schallemissionen) einzuhalten.In passenger vehicles, it is known to carry out a sound design. Basically, the vehicle occupants should have a high level of acoustic comfort are offered, in particular to a low noise level Is important. On the other hand, the driver should also Knowing the operating state of the engine exactly, which is why driving noise feedback especially a feedback of the engine noise, useful is. For the rest, it is the emission regulations (which also include to comply with the noise emissions).
Um diesen Zielkonflikt zu lösen, ist es bekannt, das Innengeräusch durch passive Abstimmaßnahmen, beispielsweise durch Aggregatlagerungen, zu verändern.To solve this conflict of goals, it is known to by the interior noise passive coordination measures, for example through aggregate storage change.
Ferner ist neben einer guten Schalldämmung die synthetische Erzeugung von Innengeräuschen oder aber auch die Abspeicherung von Klangkomponenten und die elektroakustische Hinzufügung zu dem Innenraum eines Kraftfahrzeugs bekannt (vgl. EP 0 469 023 B1, DE 27 34 948 A1).In addition to good sound insulation, there is also synthetic production of interior noises or the storage of sound components and the electroacoustic addition to the interior of a Motor vehicle known (cf. EP 0 469 023 B1, DE 27 34 948 A1).
Eine Quelle mit starker Lastabhängigkeit stellen die Abgasanlage und der Ansaugtrakt dar. Eine Erhöhung des abgestrahlten Schalls aus diesen Anregungsquellen ist aber wegen den oben genannten strengen Emissions- und Außengeräuschvorschriften nicht zielführend. Im übrigen wird die Einleitung dieser Geräuschkomponenten in den Innenraum durch eine hohe Karossseriedämmung, die zur Minderung von Wind- und Rollgeräuschen und zur Unterdrückung störender, mechanischer Motorgeräuschkomponenten erforderlich ist, weitgehend unterbunden. Eine gezielte mechanische Einleitung in den Fahrzeug-Innenraum ist zwar prinzipiell möglich, hat sich aber bezüglich der Kosten und der Anordnung im Fahrzeug als nachteilig herausgestellt.The exhaust system and the are a source with strong load dependency Intake tract. An increase in the emitted sound from these excitation sources is because of the strict emission and External noise regulations are not effective. Otherwise the introduction these noise components into the interior thanks to high body insulation, those for reducing wind and rolling noise and for suppression disruptive, mechanical engine noise components required is largely prevented. A targeted mechanical introduction in the vehicle interior is possible in principle, but has changed the costs and the arrangement in the vehicle were found to be disadvantageous.
Bei synthetisierten Klangkomponenten kann in der Regel kein authentisch einem Motorgeräusch nachempfundenes Innengeräusch dargestellt werden.In the case of synthesized sound components, as a rule none can be authentic an interior noise based on an engine noise can be displayed.
Aufgabe der Erfindung ist es, auf einfache Art und Weise eine akustische Rückmeldung des Betriebszustands des Motors in den Innenraum eines Fahrzeugs sicherzustellen, ohne daß das Außengeräusch zu hoch wird oder die Karosseriedämmung vermindert werden müßte.The object of the invention is to provide an acoustic in a simple manner Feedback of the operating state of the engine in the interior of a Vehicle without the outside noise becoming too high or the body insulation would have to be reduced.
Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale erfüllt.This object is achieved by the features specified in
Ein wesentlicher Gedanke der Erfindung ist es, den Schalldruck im Ansaug-oder Abgastrakt aufzunehmen. Diese akustischen Quellen besitzen eine hohe Lastabhängigkeit. Die erfaßten Geräusche werden dann elektronisch verarbeitet und über eine Lautsprecheranlage in den Innenraum des Fahrzeugs eingespielt. Bereits bei einer sehr einfachen Ausführungsform der Erfindung kann ein naturgetreues akustisches Signal in den Fahrzeug-Innenraum übermittelt werden. Ein Fahrzeuginsasse empfindet dieses Signal nicht als synthetisiert oder künstlich dargestellt.An essential idea of the invention is the sound pressure in the intake or Exhaust tract record. These acoustic sources have a high one Load dependency. The recorded noises are then processed electronically and a loudspeaker system in the interior of the vehicle recorded. Even in a very simple embodiment of the invention can create a lifelike acoustic signal in the vehicle interior be transmitted. A vehicle occupant does not perceive this signal as synthesized or represented artificially.
Vorzugsweise kann der Schalldruck in der Nähe der Ansaugluftöffnung oder im Ansauggeräuschdämpfer bzw. Luftfilterkasten erfaßt werden.Preferably, the sound pressure in the vicinity of the intake air opening or in the intake silencer or air filter box.
Von Vorteil ist es ferner, in der Signalverarbeitungseinheit ein oder mehrere
Filter vorzusehen, mit der sich die Klangcharakteristik verändern und an verschiedene
Fahrzeug- oder Motortypen anpassen läßt. Das Spektrum kann
von einem sonoren 
Bei weiteren Ausführungsformen der Erfindung kann die Signalverarbeitungseinheit so ausgebildet sein, daß das in den Innenraum des Kraftfahrzeugs eingespielte Geräuschsignal drehzahlabhängig verändert wird, um einen gewünschten Pegelverlauf - beispielsweise einen sehr gleichmäßigen Innengeräuschverlauf über der Drehzahl - zu erzielen.In further embodiments of the invention, the signal processing unit be designed so that in the interior of the motor vehicle recorded sound signal is changed depending on the speed to a desired level curve - for example a very even one Internal noise curve over the speed - to achieve.
Auf diese Art kann auch eine Verstärkung eines Dynamikeindrucks erreicht werden.In this way, a dynamic impression can also be strengthened become.
Möglich ist ebenfalls eine lastabhängige Veränderung des eingespielten Geräusches. Dazu müßte lediglich das Fahrpedal oder Drosselklappenstellungssignal von der Signalverarbeitungseinheit aufgenommen und entsprechend berücksichtigt werden.A load-dependent change in the recorded noise is also possible. All that would be required was the accelerator pedal or throttle position signal recorded by the signal processing unit and accordingly be taken into account.
Ferner ist es möglich, eine geschwindigkeitsabhängige Lautstärke- oder Klangcharakteristikanpassung durchzuführen. Eine Anpassung des eingespielten Geräusches ist überdies in Abhängigkeit von der Getriebeübersetzungswahl oder einer Kick-Down-Betätigung möglich. Überdies sind natürlich auch Geräuschanpassung in Abhängigkeit von anderen Größen durchführbar.It is also possible to set a speed-dependent volume or Perform sound characteristic adjustment. An adaptation of the recorded Noise is also dependent on the gear ratio selection or a kick-down operation possible. Moreover, of course noise adjustment depending on other sizes can also be carried out.
Beim Einsatz von Filtern kann man natürlich auch die Frequenzgangcharakteristik in Abhängigkeit von den vorgenannten Parametern Drehzahl, Last und Geschwindigkeit verändern. Dadurch läßt sich ebenso eine gewünschte Klangcharakteristik erreichen.When using filters, you can of course also change the frequency response characteristics depending on the above parameters speed, load and change speed. This can also be a desired one Achieve sound characteristics.
Natürlich ist es auch ohne weiteres möglich, andere Parameter der Signalverarbeitungseinheit zuzuführen, die die vom Schallsdrucksensor kommenden Signale in Abhängigkeit von solchen Parametern verändern kann.Of course, it is also easily possible to use other parameters of the signal processing unit to supply the coming from the sound pressure sensor Signals can change depending on such parameters.
Eine besonders vorteilhafte Ausführungsform ist dadurch gekennzeichnet, daß eine Schalteinheit vorgesehen ist, mit welcher die Vorrichtung deaktivierbar oder aktivierbar ist. Dazu können entweder der Schalldrucksensor oder die Signalverarbeitungseinheit oder die Lautsprechereinheit abgeschaltet werden. Mit dieser Maßnahme läßt sich die Geräuschquelle, wie vom Fahrzeugbediener gewünscht, zu- oder abschalten. Die Deaktivierung oder die Aktivierung kann natürlich auch in Abhängigkeit von bestimmten Fahrbetriebsbedingungen ausgewählt werden. Beispielsweise ist es möglich, daß die erfindungsgemäße Vorrichtung bei einem Automatikgetriebe mit manuellem Schaltbetrieb (Steptronik) nur im manuellen Schaltbetrieb aktiviert wird, also dann, wenn ein Fahrzeugbediener eine eher sportliche Fahrweise wünscht. Im normalen Automatikbetrieb könnte die erfindungsgemäße Vorrichtung deaktiviert sein, so daß eine leisere Akustik gegeben ist. Natürlich kann die die Deaktivierung und Aktivierung auch mit einer Einstellung der Motorcharakteristik oder jeglicher anderer Signale gekoppelt werden.A particularly advantageous embodiment is characterized in that that a switching unit is provided with which the device can be deactivated or can be activated. You can either use the sound pressure sensor or the signal processing unit or the loudspeaker unit is switched off become. With this measure, the source of noise, such as desired, switched on or off by the vehicle operator. The deactivation or the activation can of course also depend on certain Driving operating conditions can be selected. For example, it is possible that the device according to the invention with an automatic transmission Manual switching mode (steptronics) only activated in manual switching mode becomes, so when a vehicle operator a more sporty driving style wishes. In normal automatic mode, the invention could Device must be deactivated, so that there is quieter acoustics. Naturally can the deactivation and activation also with one setting the engine characteristics or any other signals.
Insgesamt ist durch die erfindungsgemäße Vorrichtung eine besonders einfache akustische Rückmeldung mit angenehm klingenden Klangkomponenten zu erzeugen. Das System erhöht insbesondere bei Fahrzeug mit hoher Leistung die Fahrsicherheit und unterstützt den Fahrer akustisch.Overall, the device according to the invention makes it particularly simple acoustic feedback with pleasant sounding sound components to create. The system increases especially in vehicles with high Performance improves driving safety and supports the driver acoustically.
Da eine erfindungsgemäße Vorrichtung nur das Innengeräusch beeinflußt, erfolgt die verstärkte akustische Rückmeldung an die Fahrzeuginsassen ohne daß die Umwelt belastet wird. Insbesondere wird über die erfindungsgemäße Vorrichtung lediglich das bereits natürliche Motorgeräusch aus dem Ansaug- oder dem Abgastrakt in den Innenraum eines Fahrzeugs eingespielt, so daß ein natürliches, dem jeweiligen Fahrzeugtyp anpaßbares Klangbild erzielbar ist.Since a device according to the invention only influences the interior noise, there is increased acoustic feedback to the vehicle occupants without that the environment is polluted. In particular, the invention Device only the already natural engine noise from the Intake or exhaust system imported into the interior of a vehicle, so that a natural, adaptable to the respective vehicle type Sound is achievable.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die Zeichnungen näher erläutert, die Zeichnungen zeigen in
- Fig. 1
- eine schematische graphische Darstellung der erfindungsgemäßen Vorrichtung in einem Kraftfahrzeug angeordnet und
- Fig. 2
- eine schematische Schaltskizze eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung.
- Fig. 1
- a schematic graphic representation of the device according to the invention arranged in a motor vehicle and
- Fig. 2
- is a schematic circuit diagram of an embodiment of the device according to the invention.
In Fig. 1 ist ein Kraftfahrzeug in Draufsicht schematisch dargestellt, welches
einen Motor mit einem Ansaugtrakt 18 zeigt. Im nur schematisch dargestellten
Ansaugtrakt 18 ist ein Schalldrucksensor 12 in Form eines Mikrophons
dargestellt, welches die natürlichen Motorgeräusche im Ansaugbereich aufnimmt
und über eine Leitung an eine Signalverarbeitungseinheit 14 abgibt.
Die Signalverarbeitungseinheit 14 verarbeitet die Signale vom Schalldrucksensor
12 und gibt sie an eine Lautsprechereinheit 16 ab, die die von der
Signalvorrichtungseinheit 14 erzeugten Signale in akustische Signale umwandelt.
Als Lautsprecher können separate Lautsprecher oder aber auch die
Lautsprecher einer Audioanlage eines Fahrzeugs verwendet werden. Die
Signalverarbeitungseinheit 14 filtert und verstärkt im vorliegenden Fall die
vom Schalldrucksensor 12 abgegebenen Signale.In Fig. 1, a motor vehicle is shown schematically in plan view, which
shows an engine with an
Ein Beispiel für eine Signalverarbeitungseinheit ist in Form einer schematisehen
Schaltskizze in Fig. 2 dargestellt. Dabei wird das Signal vom
Schalldrucksensor 12 zunächst durch einen Hochpaßfilter 20 geschickt, um
niederfrequente Schallanteile, die zu großen Membranbewegungen führen
würden, zu eliminieren. Das vom Hochpaßfilter 20 abgegebene Signal wird
in zwei Zweige aufgespaltet. In einem Zweig wird das Signal durch einen
Tiefpaßfilter 22 geführt und dann im wesentlichen an ein Potentiometer 26
geleitet, welches je nach seiner Einstellung ein mehr oder minder abgeschwächtes
Signal an einen Addierer (+) weitergibt.An example of a signal processing unit is shown in the form of a schematic
Circuit diagram shown in Fig. 2. The signal from
Das Signal in dem anderen Zweig läuft zu einem weiteren Potentiometer 24
im wesentlichen ungefiltert und besitzt daher Breitbandanteile. Nach dem
Potentiometer 24 wird es ebenfalls dem Addierer (+) zugeführt. Im Addierer
werden die beiden in den verschiedenen Zweigen geführten Signale gewichtet
zusammenaddiert und durch einen weiteren Tiefpaßfilter 28 geschickt,
in dem sie nach oben begrenzt werden. Schließlich werden die so
verarbeiteten Signale in einem Verstärker 30 verstärkt und an die Lautsprecher
16 des Fahrzeugs abgegeben. Diese wandeln das so erzeugte elektrische
Signal in ein akustisches Signal um, welches im wesentlichen ein gefiltertes,
natürliches Abbild des im Ansaugtrakt aufgenommenen Geräusches
darstellt. Durch eine Veränderung der Gewichtungsfaktoren durch Justierung
der Potentiometer 24 und 26 zwischen Breitband und Tiefpaßanteil läßt sich
der Klangeindruck einfach verstellen. Die Justierung erfolgt beim vorliegenden
Ausführungsbeispiel manuell.The signal in the other branch runs to a
Gemäß einer alternativen Ausführungsform kann die Verstellung der Gewichtsfaktoren
auch aufgrund der Drosselklappenstellung, des Drehzahlsignals
oder der Geschwindigkeit erfolgen. Zu diesem Zweck könnte die Signalverarbeitungseinheit
14 an einen CAN-Bus angeschlossen sein und
noch eine zusätzliche Steuerungseinheit besitzen, die die Steuerung der
Potentiometer 24 und 26 in Abhängigkeit von den gewählten Parametern
übernimmt.According to an alternative embodiment, the adjustment of the weight factors
also due to the throttle valve position, the speed signal
or the speed. For this purpose the
Natürlich können alternativ auch andere als die vorgenannten Parameter zur Steuerung von Gewichtungsfaktoren gewählt werden. Im übrigen ist es auch möglich, andere Filter zur Veränderung des Klanges zu verwenden.Alternatively, parameters other than those mentioned above can of course also be used Control of weighting factors can be selected. Otherwise it is possible to use other filters to change the sound.
Die dargestellte Ausführungsform ist auch lediglich eine einfache Version einer Geräuschrückführungsvorrichtung, die das im Ansaug- bzw. Abgastrakt aufgenommene natürliche Motorgeräusch in den Innenraum führt.The embodiment shown is also only a simple version a noise feedback device that in the intake or exhaust system recorded natural engine noise leads into the interior.
Claims (9)
dadurch gekennzeichnet,
daß als Lautsprechereinheit (10) eine Audioanlage des Kraftfahrzeuges (10) dient. Device according to claim 1,
characterized,
that an audio system of the motor vehicle (10) is used as the loudspeaker unit (10).
dadurch gekennzeichnet,
daß die Signalverarbeitungseinheit (14) zumindest eine Filtereinrichtung (20, 22, 28) zur Veränderung der Klangcharakteristik des vom Schalldrucksensor (12) aufgenommenen Geräusches enthält.Device according to claim 1 or 2,
characterized,
that the signal processing unit (14) contains at least one filter device (20, 22, 28) for changing the sound characteristic of the noise recorded by the sound pressure sensor (12).
dadurch gekennzeichnet,
daß die Signalverarbeitungseinheit (14) derart ausgebildet ist, um das Geräusch, insbesondere dessen Lautstärke oder dessen Frequenzgangcharakteristik, drehzahlabhängig zu verändern.Device according to one of the preceding claims,
characterized,
that the signal processing unit (14) is designed to change the noise, in particular its volume or its frequency response characteristic, as a function of speed.
dadurch gekennzeichnet,
daß die Signalverarbeitungseinheit (14) derart ausgebildet ist, um das Geräusch, insbesondere dessen Lautstärke oder dessen Frequenzgangcharakteristik, lastabhängig zu verändern.Device according to one of the preceding claims,
characterized,
that the signal processing unit (14) is designed to change the noise, in particular its volume or its frequency response characteristic, depending on the load.
dadurch gekennzeichnet,
daß die Signalverarbeitungseinheit (14) derart ausgebildet ist, um das Geräusch, insbesondere dessen Lautstärke oder dessen Frequenzgangcharakteristik, geschwindigkeitsabhängig zu verändern.Device according to one of the preceding claims,
characterized,
that the signal processing unit (14) is designed to change the noise, in particular its volume or its frequency response characteristic, as a function of speed.
dadurch gekennzeichnet,
daß die Signalverarbeitungseinheit (14) derart ausgebildet ist, um das Geräusch, insbesondere dessen Lautstärke oder dessen Frequenzgangcharakteristik, in Abhängigkeit von der eingestellten Getriebeübersetzungsstufe oder einem Kick-Down-Betrieb zu verändern. Device according to one of the preceding claims,
characterized,
that the signal processing unit (14) is designed in such a way as to change the noise, in particular its volume or its frequency response characteristic, as a function of the gear ratio setting set or a kick-down operation.
dadurch gekennzeichnet,
daß eine Schalteinheit vorgesehen ist, mit welcher der Schalldrucksensor (12), die Signalverarbeitungseinheit (14) oder die Lautsprechereinheit (16) deaktivierbar oder aktivierbar ist.Device according to one of the preceding claims,
characterized,
that a switching unit is provided with which the sound pressure sensor (12), the signal processing unit (14) or the loudspeaker unit (16) can be deactivated or activated.
dadurch gekennzeichnet,
daß die Schalteinheit auf bestimmte Fahrbetriebsbedingungen anspricht.Device according to claim 8,
characterized,
that the switching unit responds to certain driving operating conditions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19845736 | 1998-10-05 | ||
| DE19845736A DE19845736A1 (en) | 1998-10-05 | 1998-10-05 | Device for electroacoustic noise feedback |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0992976A2 true EP0992976A2 (en) | 2000-04-12 |
| EP0992976A3 EP0992976A3 (en) | 2002-12-04 |
| EP0992976B1 EP0992976B1 (en) | 2005-11-23 |
Family
ID=7883402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99116192A Expired - Lifetime EP0992976B1 (en) | 1998-10-05 | 1999-08-24 | Motor vehicle comprising a device for electro-acoustic sound feedback |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0992976B1 (en) |
| DE (2) | DE19845736A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1193683A2 (en) * | 2000-09-20 | 2002-04-03 | Siemens Automotive Inc. | Driving mode for active noise cancellation |
| WO2003028007A1 (en) * | 2001-09-25 | 2003-04-03 | Siemens Vdo Automotive Inc. | Modular active noise cancellation air filter speaker and microphone assembly |
| EP1524649A1 (en) * | 2003-10-15 | 2005-04-20 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Method and apparatus for providing vehicle engine noises |
| DE102007021880A1 (en) * | 2007-05-10 | 2008-11-13 | Ford Global Technologies, LLC, Dearborn | Noise sensation optimizing method for passenger compartment of motor vehicle, involves fading noise based on operation of hybrid-drive when hybrid-drive is detected for from noisy operational mode to muted operational mode |
| US8320581B2 (en) | 2010-03-03 | 2012-11-27 | Bose Corporation | Vehicle engine sound enhancement |
| US9299337B2 (en) | 2011-01-11 | 2016-03-29 | Bose Corporation | Vehicle engine sound enhancement |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945259C1 (en) | 1999-09-21 | 2001-01-11 | Bayerische Motoren Werke Ag | Electroacoustic noise generation device e.g. for simulating automobile engine noise uses signal processing device with synthesizer for mixing signal from sound pressure sensor in air intake with synthetic tones |
| DE10140407A1 (en) * | 2001-08-17 | 2003-03-06 | Werner Baur | Device for influencing sound background in motor vehicle, has sound processor with input connected to engine sound pick-up or reproduction device, and signal output to audio/stereo system |
| DE10144266C1 (en) * | 2001-09-08 | 2003-04-03 | Bosch Gmbh Robert | Side impact detection device for automobile, to control actuation of passenger restraints, uses loudspeaker in vehicle side panel as microphone to providing plausibility check for side impact sensor signals |
| DE102008033414B4 (en) | 2008-07-16 | 2022-05-19 | Bayerische Motoren Werke Aktiengesellschaft | Method for generating defined noises in the passenger compartment of a motor vehicle and motor vehicle |
| DE102011102709B4 (en) | 2011-05-20 | 2020-08-06 | RocketAudio Traffic GmbH | Device for simulating the generation of operating noises of a vehicle, in particular a motor vehicle |
| DE102015214134A1 (en) | 2015-07-27 | 2017-02-02 | Bayerische Motoren Werke Aktiengesellschaft | Method and control device for active sound suppression in a motor vehicle |
| DE102015219144A1 (en) * | 2015-10-02 | 2017-04-06 | Robert Bosch Gmbh | Method for operating an active gas line system |
| DE102016201984A1 (en) * | 2016-02-10 | 2017-08-10 | Bayerische Motoren Werke Aktiengesellschaft | Reproduction device for a motor vehicle and method for operating such a display device |
| US10140970B1 (en) * | 2017-07-31 | 2018-11-27 | GM Global Technology Operations LLC | Engine sound production systems and methods |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5237617A (en) * | 1991-10-17 | 1993-08-17 | Walter Miller | Sound effects generating system for automobiles |
| DE4442233A1 (en) * | 1993-11-26 | 1995-06-01 | Nippon Denso Co | Engine noise compensation and control system in car |
| DE19643030A1 (en) * | 1996-10-18 | 1998-04-23 | Bayerische Motoren Werke Ag | Noise generation system for motor vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08246969A (en) * | 1995-03-15 | 1996-09-24 | Unisia Jecs Corp | Active noise control device for automobile |
-
1998
- 1998-10-05 DE DE19845736A patent/DE19845736A1/en not_active Withdrawn
-
1999
- 1999-08-24 DE DE59912822T patent/DE59912822D1/en not_active Expired - Lifetime
- 1999-08-24 EP EP99116192A patent/EP0992976B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5237617A (en) * | 1991-10-17 | 1993-08-17 | Walter Miller | Sound effects generating system for automobiles |
| DE4442233A1 (en) * | 1993-11-26 | 1995-06-01 | Nippon Denso Co | Engine noise compensation and control system in car |
| DE19643030A1 (en) * | 1996-10-18 | 1998-04-23 | Bayerische Motoren Werke Ag | Noise generation system for motor vehicle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1193683A2 (en) * | 2000-09-20 | 2002-04-03 | Siemens Automotive Inc. | Driving mode for active noise cancellation |
| EP1193683A3 (en) * | 2000-09-20 | 2003-10-01 | Siemens Automotive Inc. | Driving mode for active noise cancellation |
| WO2003028007A1 (en) * | 2001-09-25 | 2003-04-03 | Siemens Vdo Automotive Inc. | Modular active noise cancellation air filter speaker and microphone assembly |
| US7016506B2 (en) | 2001-09-25 | 2006-03-21 | Siemens Vdo Automotive Inc. | Modular active noise air filter speaker and microphone assembly |
| EP1524649A1 (en) * | 2003-10-15 | 2005-04-20 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Method and apparatus for providing vehicle engine noises |
| DE102007021880A1 (en) * | 2007-05-10 | 2008-11-13 | Ford Global Technologies, LLC, Dearborn | Noise sensation optimizing method for passenger compartment of motor vehicle, involves fading noise based on operation of hybrid-drive when hybrid-drive is detected for from noisy operational mode to muted operational mode |
| US8320581B2 (en) | 2010-03-03 | 2012-11-27 | Bose Corporation | Vehicle engine sound enhancement |
| US9299337B2 (en) | 2011-01-11 | 2016-03-29 | Bose Corporation | Vehicle engine sound enhancement |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0992976B1 (en) | 2005-11-23 |
| DE59912822D1 (en) | 2005-12-29 |
| DE19845736A1 (en) | 2000-04-06 |
| EP0992976A3 (en) | 2002-12-04 |
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