Patent Application
20200346534
This application claims priority to DE Patent Application No. 102019206176.1, which was filed on 30 Apr. 2019 and is incorporated herein by reference in its entirety.
The present disclosure relates to a system for the reduction of noises in an interior of a vehicle. The present disclosure furthermore relates to a vehicle comprising such a system for the reduction of noises.
Noises in the interior of a vehicle, for example in a driver's compartment, are unavoidable and can be attributed, for example, to the vibration of the vehicle body or individual vehicle parts, in particular to vibrations of closure elements, such as window elements or vehicle doors, during the journey. Vibrations of window elements or vehicle doors, especially the rear door or tailgate of a vehicle, can therefore be transmitted to the interior, thereby causing the air volume in the vehicle interior to oscillate. This can lead to an undesired, increased noise level. In this case, the noises in the vehicle interior can effect driving comfort.
A system for the reduction of noises in an interior of a vehicle is known, for example, from US 2005/0199440 A1. According to this, specially designed sealing arrangements are provided, which seal an opening in the body of the vehicle upon its closure by a vehicle door. These sealing arrangements are specially designed for the reduction of noises in that they have integrated sensor elements, which detect and measure vibrations causing undesired noises. The sealing arrangement is furthermore equipped with active material, which, as a reaction to the measured, undesired vibrations, produces actively opposed vibrations, whereby the undesired vibrations are canceled out and the noises to be prevented are suppressed.
The system of US 2005/0199440 A1 can be further optimized in that the sealing arrangement is designed to be less complex and structurally simpler. A solution is desirable, in which there is no need to revert to a complicated configuration of the sealing arrangement and, in particular, to complicated measurement of vibrations which cause noise signals.
Embodiments of the present disclosure can provide a cost-effective and structurally simple solution to reduce noises in an interior of a vehicle.
An exemplary embodiment of the present disclosure includes a sealing arrangement of a system. The sealing arrangement can include at least a first sealing element and a second sealing element. A rigidity of the first sealing element differs from the rigidity of the second sealing element.
By designing the various sealing elements of the sealing arrangement with different rigidities, the sealing arrangement is asymmetrical in terms of the rigidity. It has been established that, in this way, the vibrations transmitted to the vehicle interior by the corresponding closure element can be considerably reduced. The asymmetrical coupling or connection of the closure element, for example the vehicle door, to the body of the vehicle, which is realized as a result of the sealing arrangement, which is designed asymmetrically in terms of the rigidity, ensures that the low-frequency oscillations in the vehicle interior, which are caused by the vibrations of the closure element, are reduced. The sealing arrangement which is not mirror-symmetrical in terms of the rigidity therefore enables a cost-effective and structurally simple system in an advantageous manner for the reduction of noises in an interior of a vehicle.
In this case, the first sealing element and the second sealing element can be integral components of the sealing arrangement. However, they can also be designed as independent sealing elements, which are then regularly connected to one another directly or indirectly to form the sealing arrangement.
“Differing rigidity,” for purposes of this disclosure, should be understood to mean that either the first sealing element has a greater rigidity than the second sealing element, or vice versa. In this case, the material property in the form of the rigidity can generally describe the resistance of the first and second sealing element to elastic deformation. The rigidity of a sealing element can be determined, for example, by a measuring technique, in that a test piece of a defined length is compressed and, in the process, the required force is measured via the course of the deformation. The first and second sealing element is, like the overall sealing arrangement, regularly elastically deformed, namely generally compressed, as a result of closing the correspondingly associated closure element, for example a vehicle door.
The closure element of the vehicle can be a vehicle door. The vehicle door can be a rear door or a side door of the vehicle. The rear door or tailgate or the trunk lid can refer to a vehicle door of varying sizes in different vehicle models. The system can also be simultaneously provided both in a rear door and in side doors. The important factor here is merely that the sealing arrangement provided at the respective opening in the vehicle body and therefore at the corresponding vehicle door has at least two different sealing elements, which each have a different rigidity.
Alternatively or equally, the closure element can refer to a window element which can be opened and closed again or to a permanently closed window element, in particular a windshield or a rear window or a panoramic window of the vehicle.
In this case, a sealing arrangement of an opening can also have more sealing elements than only the first sealing element and the second sealing element. However, at least a first sealing element and a second sealing element must have mutually differing rigidities.
In a further exemplary aspect of the foregoing arrangement, the first sealing element and the second sealing element can be arranged at opposite sides of the opening. It has been established that, in this way, the noises of the vehicle can again be further reduced.
In a further exemplary aspect of any of foregoing arrangements, the first sealing element can be provided at a left side of the opening, as seen in the direction of travel of the vehicle, and the second sealing element can be provided at a right side of the opening, as seen in the direction of travel of the vehicle. It has been shown that the noises can be even further reduced when the left-side sealing element sealing an opening in the vehicle body has a different rigidity from that of the right-side sealing element at this opening.
In a further exemplary aspect of any of the foregoing arrangements, the sealing arrangement can be a seal extending completely around the opening. The first sealing element and the second sealing element are parts of the sealing arrangement, which have respectively differing rigidities. In this way, a structurally further simplified system can be achieved, since only individual parts of the overall sealing arrangement sealing the opening in the vehicle body have to have different rigidities.
In a further exemplary aspect of any of the foregoing arrangements, the first sealing element can have at least one stiffening element to achieve an increased rigidity compared to the rigidity of the second sealing element. The rigidity of the sealing element can therefore be set precisely in a simple manner in order to achieve the advantageous system for the reduction of the noises.
In a further exemplary aspect of any of the foregoing arrangements, the first sealing element and the second sealing element can further preferably be formed from a respectively different material. In this way, a secure, uncomplicated system can be achieved, since different rigidities can be selected or set by means of the different materials.
A further exemplary aspect of the foregoing arrangements can include a vehicle having the system.
To avoid unnecessary duplication of effort and repetition of text in the specification, certain features are described in relation to only one or several aspects or embodiments. However, it is to be understood that, where it is technically possible, features described in relation to any aspect or embodiment may also be used with any other aspect or embodiment.
The various features and advantages of the disclosed examples will become apparent to those skilled in the art from the detailed description. The figures that accompany the detailed description can be briefly described as follows:
An exemplary embodiment of a system that reduce noises in an interior of a vehicle or a vehicle is illustrated in
The vehicle 1 has an interior 2 in which the driver and the passengers are accommodated during a journey. Noises, induced, amongst other things, by vibrations of closure elements such as vehicle doors or window elements, are produced in the interior 2 or in the driver's compartment during the journey. These noises can be reduced by the present system.
Various openings are present in the body 3 of the vehicle 1. Amongst others, the opening 4 in the form of the trunk of the vehicle 1, which can be closed by the rear door (not illustrated in
Further openings in a vehicle body of a vehicle can be openings which can be closed by side doors of the vehicle, for example, or openings which are closed by windows, for instance the rear window, side windows or a panoramic window.
In this case, the openings 4 are, amongst other things, sealed by means of a sealing arrangement 6 for sealing with respect to the environment, as can be seen by way of example in
The sealing arrangement 6 comprises at least a first sealing element 7 and a second sealing element 8. The rigidity of the first sealing element 7 differs from the rigidity of the second sealing element 8.
In terms of the rigidity, a non-symmetrical sealing arrangement 6 is therefore provided. It has been established that the low-frequency oscillations produced in the interior 2 of the vehicle 1 during the journey, and therefore the undesired noises, can thus be reduced.
In detail, the sealing arrangement 6 is designed to extend completely around the opening 4. In this case, the first sealing element 7 and the second sealing element 8 are arranged at opposite sides of the opening 4. Specifically, the first sealing element 7 represents the left-side sealing element and the second sealing element 8 represents the right-side sealing element. To this end, the first sealing element 7 is provided at a left side L of the opening 4, as seen in the direction of travel of the vehicle 1. The second sealing element 8 is then provided at a right side R of the opening 4, as seen in the direction of travel of the vehicle 1.
In the exemplary embodiment, which is illustrated in
The first sealing element 7 and the second sealing element 8 are designed as parts of the sealing arrangement 6 which have different rigidities.
To set the rigidity of the first sealing element 7 or the second sealing element 8, either different materials or material combinations can be used or one of the sealing elements 7, 8 can also be equipped with stiffening elements 9, for example to increase the rigidity.
Such a sealing arrangement 6 is illustrated in cross-section in
In the exemplary embodiment of
Advantageous configurations and variants of the exemplary embodiments can be found in the claims below. The features set out individually in the claims can be combined with one another, in any technically useful manner and present other advantageous variant embodiments.
The preceding description is exemplary rather than limiting in nature. Variations and modifications to the disclosed examples may become apparent to those skilled in the art that do not necessarily depart from the essence of this disclosure. Thus, the scope of legal protection given to this disclosure can only be determined by studying the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102019206176.1 | Apr 2019 | DE | national |
