DE102015016945A1 - Vehicle, preferably a low-noise motor vehicle - Google Patents

Abstract

The invention relates to a vehicle, preferably a low-noise vehicle, comprising at least one loudspeaker (19) coupled to a sound generator for generating an acoustic warning signal for an environment of the vehicle, wherein the loudspeaker (19) is arranged in a shell (1) of the vehicle is. In a vehicle in which the noise emission can be amplified, the at least one loudspeaker (19) is arranged in a soundproof crash component (5) of the shell (1).

Description

The invention relates to a vehicle, preferably a low-noise motor vehicle, comprising at least one loudspeaker coupled to a sound generator for generating an acoustic warning signal for an environment of the vehicle, the loudspeaker being arranged in a body shell of the vehicle.

There are increasingly low-noise vehicles, such as hybrid or electric vehicles produced that are not perceived due to the lack of traditional sounds of a motor vehicle with an internal combustion engine from the environment in the road. Such vehicles cause dangerous situations due to the low noise level, since, for example, pedestrians in traffic are not warned by the vehicle noise.

From the DE 10 2014 016 751 A1 For example, a vehicle is known which has a sound generator in which a loudspeaker is integrated. This sound generator is mounted in an underbody paneling of the shell of the vehicle and emits its acoustic signal in the direction of the road on which the vehicle moves. The disadvantage here is that such a system uses its own resonant volume body, which has only a small resonance volume due to the limited installation space in the vehicle. As a result, the active design of the noise emission is severely limited.

The object of the invention is to provide a vehicle in which the resonance volume of the speaker system is increased, without requiring additional space.

The invention results from the features of the independent claims. Advantageous developments and refinements are the subject of the dependent claims. Other features, applications and advantages of the invention will become apparent from the following description, as well as the explanation of embodiments of the invention, which are illustrated in the figures.

The object is achieved with a vehicle in that the at least one loudspeaker is arranged in a sound-proof finished crash component of the shell. This has the advantage that the relatively large volume, which has a crash component, can be used as a resonant volume body. The loudspeaker system therefore does not require its own resonance volume system and is completely integrated in the crash component. Additional space for the sound box of the speaker is not needed. The integration of the loudspeaker system into the crash component does not impair the crash performance of the crash component.

Advantageously, the crash component is formed as a bending beam of a bumper, which is laterally sealed with a cap soundproof, wherein the speaker is connected within the bending beam with at least one cap. The stimulating loudspeaker generates and amplifies sound waves within the soundproofed crash component, which greatly increases the noise to be emitted by the loudspeaker, so that every pedestrian also recognizes an electric vehicle based on its background noise.

In one embodiment, the, the bending beam laterally covering caps made of a plastic. The caps can be easily adapted by means of the plastic to the corresponding shape of the bending beam and are therefore inexpensive to produce.

In a further development, the loudspeaker is integrated in one of the caps.

In one variant, a sound hole is formed in the bending beam, through which the noise of the speaker is forwarded to the vehicle environment.

In one embodiment, an opening for a towing eye of the bending beam is used as a sound hole. This eliminates any additional assembly work to produce an additional opening in the bending beam, since an already existing opening is simply used with an additional function to deliver the noise.

In a development, the crash component is designed as an extruded profile. Such extruded profiles have a large volume, which can be used as a supplement for the speaker system as a resonance volume, whereby a significantly optimized sound design of the electric vehicle can be realized.

Further advantages, features and details will become apparent from the following description in which - where appropriate, with reference to the drawings - at least one embodiment is described in detail. Described and / or illustrated features may form the subject of the invention itself or in any meaningful combination, optionally also independent of the claims, and may in particular additionally be the subject of one or more separate application / s. Same, similar and / or functionally identical parts are provided with the same reference numerals.

Show it:

1 Top view of a front part of a vehicle according to the invention,

2 a section of the crash component according to 1 ,

In 1 is a plan view of a front part of a shell 1 represented a vehicle on which a bumper 3 is arranged. Between bumper 3 and shell construction 1 is a bending medium 5 provided, which by means of two carriers 7 . 9 horizontal to the shell 1 supported. The bending beam 5 itself is designed as an extruded profile and thus has a large volume. It is known such bending beams 5 to use as a crash component in the vehicle.

In the given case, the bending beam 5 laterally with two plastic caps 11 . 13 soundproof finished, taking on the first plastic cap 11 a loudspeaker system comprising a sound generator 15 is arranged. At the position of the speaker system 15 opposite end of the bending beam 5 is an opening 17 for a towing eye available, which is used as a sound hole. The speaker 19 of the speaker system 15 is stimulated by the sound generator to make a noise, which by the resonance volume of the bending beam 5 is reinforced. This sound is through the opening 17 issued to the environment of the vehicle as an acoustic warning signal, for example, for pedestrians or animals.

Additionally, there may be a second opening near the position of the speakerphone system 15 be formed, which is used as a second sound hole, so that the emission of the noise emission can take place in different directions.

In 2 is the opening serving as a sound hole 17 of the bending beam 5 shown enlarged. This extends approximately in the direction of travel and is located at the level of one of the carriers 7 . 9 of the bending body 5 , Advantageously, the opening settles 17 in the bumper 3 continue and enforce this completely.

By means of this embodiment, an acoustic warning system is integrated in the vehicle, without requiring additional space, the already existing bending beam 5 in its functionality is increased. An impairment of the crash performance of the component does not occur.

Although the invention has been further illustrated and explained in detail by way of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a multitude of possible variations exists. It is also to be understood that exemplified embodiments are really only examples that are not to be construed in any way as limiting the scope, applicability, or configuration of the invention. Rather, the foregoing description and description of the figures enable one skilled in the art to practice the exemplary embodiments, and those of skill in the knowledge of the disclosed inventive concept may make various changes, for example as to the function or arrangement of individual elements recited in an exemplary embodiment, without Protection area defined by the claims and their legal equivalents, such as further explanations in the description.

LIST OF REFERENCE NUMBERS

1

shell

3

bumper

5

bending beam

7

carrier

9

carrier

11

Plastic cap

13

Plastic cap

15

Speaker System

17

opening

19

speaker

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102014016751 A1 [0003]

Claims (7)

Vehicle, preferably a low-noise vehicle, comprising at least one loudspeaker coupled to a sound generator ( 19 ) for generating an acoustic warning signal for an environment of the vehicle, wherein the loudspeaker ( 19 ) in a shell ( 1 ) of the vehicle, characterized in that the at least one loudspeaker ( 19 ) in a soundproof crash component ( 5 ) of the shell ( 1 ) is arranged. Vehicle according to claim 1, characterized in that the crash component as a bending beam ( 5 ) of a bumper ( 3 ) is formed, which laterally each with a cap ( 11 . 13 ) is soundproofed, the speaker ( 19 ) within the bending beam ( 5 ) with one of the caps ( 11 . 13 ) connected is. Vehicle according to claim 2, characterized in that the bending beam ( 5 ) laterally covering caps ( 11 . 13 ) consist of plastic. Vehicle according to claim 1, 2 or 3, characterized in that the loudspeaker ( 19 ) in one of the caps ( 11 ) is integrated. Vehicle according to at least one of the preceding claims, characterized in that in the bending beam ( 5 ) a sound hole ( 17 ) is trained. Vehicle according to claim 5, characterized in that an opening for a towing eye of the bending beam as a sound hole ( 17 ) is used. Vehicle according to at least one of the preceding claims, characterized in that the crash component ( 5 ) is designed as an extruded profile.

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