A method for optimizing the vibration of an automobile horn assembly

Abstract

This invention discloses a method for optimizing the vibration of an automotive horn assembly. The method includes: acquiring vibration acceleration and frequency information corresponding to the steering wheel of the target vehicle when the horn assembly is emitting sound; acquiring the sound frequency of the horn assembly; and executing a horn bracket adjustment strategy and / or a horn power adjustment strategy based on the vibration acceleration information, vibration frequency information, vibration acceleration threshold, and sound frequency to reduce steering wheel vibration caused by the horn assembly emitting sound. This application, by acquiring the vibration acceleration and frequency information of the steering wheel corresponding to the horn assembly of the target vehicle during sound emission and the sound frequency information of the horn assembly, determines whether the horn assembly causes significant vibration of the vehicle's steering wheel during sound emission. Based on the comparison results, it adjusts the horn bracket and / or the horn power, thereby improving the NVH characteristics of the vehicle when the horn is operating and enhancing the user experience.

Description

Technical Field

[0001] This specification relates to the field of vehicle NVH (noise, vibration, and harshness), and more specifically, to a method for optimizing the vibration of an automotive horn assembly. Background Technology

[0002] NVH (Noise, Vibration, and Harshness) issues have become a major source of customer complaints, directly impacting vehicle quality. During prototype development, issues such as steering wheel vibration caused by horn use frequently arise. Since the steering wheel is in direct contact with the driver, excessive vibration can easily lead to driver fatigue, severely affecting in-vehicle comfort and reputation.

[0003] Therefore, it is necessary to propose a vibration optimization method for automotive horn components to at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, this invention proposes a vibration optimization method for an automotive horn assembly, the method comprising:

[0006] When the horn assembly of the target car emits sound, obtain the vibration acceleration information and vibration frequency information corresponding to the steering wheel of the target car.

[0007] Obtain the sound frequency of the above speaker assembly;

[0008] Based on the aforementioned vibration acceleration information, vibration frequency information, vibration acceleration threshold, and sound emission frequency, a horn bracket adjustment strategy and / or a horn sound emission power adjustment strategy are executed to reduce steering wheel vibration caused when the aforementioned horn assembly emits sound.

[0009] Optionally, the above-mentioned speaker bracket adjustment strategy includes a speaker bracket mounting point adjustment strategy, which is used to select a mounting point with greater dynamic stiffness.

[0010] The above-mentioned implementation of the speaker bracket adjustment strategy and / or speaker power adjustment strategy based on the above-mentioned vibration acceleration information, vibration frequency information, vibration acceleration threshold, and sound emission frequency includes:

[0011] If the vibration acceleration information is greater than the vibration acceleration threshold and / or the difference between the vibration frequency information and the sound frequency is less than a preset difference, the above-mentioned speaker bracket mounting point adjustment strategy is executed.

[0012] Optionally, the above-mentioned horn bracket adjustment strategy also includes a horn bracket modal adjustment strategy, which is used to improve the vibration isolation rate of the horn bracket.

[0013] The above methods also include:

[0014] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned horn bracket mounting point adjustment strategy is implemented, the above-mentioned horn bracket modal adjustment strategy is implemented.

[0015] Optionally, the above-mentioned horn bracket modal adjustment strategy includes at least one of the following adjustment methods: reducing the thickness of the horn bracket, increasing the length of the horn bracket, and replacing a thicker horn bracket with multiple thinner horn brackets that are overlapped and installed.

[0016] Optionally, the above-mentioned horn bracket adjustment strategy also includes a horn bracket mounting method adjustment strategy, which is used to reduce the overall vibration transmission rate of the horn bracket.

[0017] The above methods also include:

[0018] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned horn bracket modal adjustment strategy is implemented, the horn bracket installation method adjustment strategy is implemented.

[0019] Optionally, the above-mentioned speaker bracket installation adjustment strategy includes installing the tweeter and woofer using their respective independent brackets.

[0020] Optionally, the above-mentioned horn bracket adjustment strategy also includes a horn bracket bushing vibration isolation adjustment strategy, which is used to improve the bushing vibration isolation rate.

[0021] The above methods also include:

[0022] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above bracket installation method adjustment strategy is implemented, the horn bracket bushing vibration isolation adjustment strategy is implemented.

[0023] Optionally, the above-mentioned bracket bushing vibration isolation adjustment strategy includes reducing the stiffness of the speaker bracket bushing.

[0024] Optionally, the above-mentioned speaker power adjustment strategies include reducing the power supply voltage of the woofer and / or reducing the power supply voltage of the tweeter;

[0025] The above methods also include:

[0026] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned support bushing vibration isolation adjustment strategy is implemented, the above-mentioned speaker power adjustment strategy is implemented.

[0027] Optionally, the vibration acceleration and vibration frequency information corresponding to the steering wheel are obtained from the vibration sensor installed on the steering wheel, and the sound emission frequency of the horn assembly is obtained from the vibration sensor installed on the horn bracket and the microphone installed in the vehicle.

[0028] In summary, the vibration optimization method for an automotive horn assembly according to embodiments of this application includes: acquiring vibration acceleration information and vibration frequency information corresponding to the steering wheel of the target vehicle when the horn assembly of the target vehicle is emitting sound; acquiring the sound emission frequency of the horn assembly; and executing a horn bracket adjustment strategy and / or a horn emission power adjustment strategy based on the vibration acceleration information, the vibration frequency information, the vibration acceleration threshold, and the sound emission frequency to reduce the steering wheel vibration caused by the horn assembly emitting sound. This application provides a method for optimizing the vibration of an automotive horn assembly by acquiring the vibration acceleration and vibration frequency information corresponding to the steering wheel of the target vehicle and the sound emission frequency information of the horn assembly during sound emission, determining whether the horn assembly causes significant vibration of the vehicle's steering wheel during sound emission, and adjusting the horn bracket and / or horn emission power based on the comparison results, thereby improving the NVH characteristics of the vehicle when the horn is operating and enhancing the user experience. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit this specification. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is a schematic flowchart of a vibration optimization method for an automobile horn assembly provided in an embodiment of this application;

[0031] Figure 2 A schematic diagram illustrating the acceleration caused by steering wheel vibration in the first type of car horn assembly provided in this application embodiment;

[0032] Figure 3 This is a schematic diagram illustrating the acceleration caused by steering wheel vibration in a second type of car horn assembly provided in an embodiment of this application.

[0033] Figure 4 A schematic diagram illustrating the acceleration caused by steering wheel vibration in a third type of car horn assembly provided in this application embodiment;

[0034] Figure 5 A schematic diagram illustrating the acceleration caused by steering wheel vibration in the fourth type of car horn assembly provided in this application embodiment;

[0035] Figure 6A schematic diagram illustrating the acceleration caused by steering wheel vibration in the fifth type of car horn assembly provided in this application embodiment;

[0036] Figure 7 A schematic diagram illustrating the acceleration caused by steering wheel vibration in the sixth type of car horn assembly provided in this application embodiment;

[0037] Figure 8 This is a schematic diagram of an electronic device structure provided in an embodiment of this application. Detailed Implementation

[0038] This application provides a method for optimizing the vibration of an automotive horn assembly. By acquiring the vibration acceleration and frequency information of the steering wheel corresponding to the horn assembly during sound production in the target vehicle, and the sound production frequency information of the horn assembly, it is determined whether the horn assembly causes significant vibration of the vehicle's steering wheel during sound production. Based on the comparison results, the horn bracket and / or the horn's sound production power are adjusted to improve the NVH characteristics of the vehicle when the horn is working, thereby enhancing the user experience.

[0039] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The technical solutions of the embodiments of this application will now be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them.

[0040] Please see Figure 1 The above is a schematic flowchart of a vibration optimization method for an automobile horn assembly provided in an embodiment of this application, which may include: S110-S130.

[0041] S110. When the horn assembly of the target car emits sound, obtain the vibration acceleration information and vibration frequency information corresponding to the steering wheel of the target car.

[0042] For example, during the vibration optimization of a car horn assembly, technicians manually or automatically control the target car horn assembly to produce sound. At this time, the vibration acceleration and frequency information of the target car's steering wheel are acquired. The vibration acceleration and frequency information of the steering wheel can be obtained through vibration sensors during the sound production process of the car horn assembly. The vibration data is then processed and analyzed to obtain the vibration acceleration and frequency information.

[0043] S120. Obtain the sound frequency of the above-mentioned speaker assembly;

[0044] For example, the sound frequency of the speaker assembly can also be obtained by processing data obtained from vibration sensors or microphones.

[0045] S130. Based on the above vibration acceleration information, the above vibration frequency information, the vibration acceleration threshold and the above sound frequency, execute the horn bracket adjustment strategy and / or the horn sound power adjustment strategy to reduce the steering wheel vibration caused when the above horn assembly emits sound.

[0046] For example, the vibration acceleration information is compared with the vibration acceleration threshold, and the vibration frequency information is compared with the sound frequency information to determine whether the horn assembly causes significant vibration in the vehicle's steering wheel during operation. Based on the comparison results, a horn bracket adjustment strategy and / or a horn sound power adjustment strategy are selected to reduce the steering wheel vibration caused by the horn assembly's sound output, thereby improving the user experience.

[0047] In summary, the vibration optimization method for automotive horn components provided in this application obtains the vibration acceleration and frequency information of the steering wheel corresponding to the horn component during sound production, as well as the sound production frequency information of the horn component, to determine whether the horn component causes significant vibration of the vehicle's steering wheel during sound production. Based on the comparison results, the horn bracket and / or horn sound production power are adjusted to improve the NVH characteristics of the vehicle when the horn is working and enhance the user experience.

[0048] In some examples, the above-mentioned horn bracket adjustment strategy includes a horn bracket mounting point adjustment strategy, which is used to select a mounting point with greater dynamic stiffness.

[0049] The above-mentioned implementation of the speaker bracket adjustment strategy and / or speaker power adjustment strategy based on the above-mentioned vibration acceleration information, vibration frequency information, vibration acceleration threshold, and sound emission frequency includes:

[0050] If the vibration acceleration information is greater than the vibration acceleration threshold and / or the difference between the vibration frequency information and the sound frequency is less than a preset difference, the above-mentioned speaker bracket mounting point adjustment strategy is executed.

[0051] For example, if the vibration acceleration information of the steering wheel is greater than the vibration acceleration threshold, or if the vibration frequency is close to the sound frequency (i.e., the difference is less than a preset difference), then it is considered that the horn assembly is causing significant vibration in the steering wheel. In this case, a horn bracket mounting point adjustment strategy is implemented to eliminate the vibration transmitted from the horn assembly to the steering wheel. It should be noted that the vibration acceleration threshold is the maximum vibration acceleration of the steering wheel that the vehicle design assumes will not affect the user's use of the steering wheel during driving. Specifically, the horn bracket mounting point can be measured by testing the dynamic stiffness of the mounting point and selecting a mounting point with higher dynamic stiffness. Figure 2 This is a schematic diagram of the steering wheel vibration acceleration before optimization. Figure 3 The image shows a comparison of vibration acceleration before and after adopting the horn bracket adjustment strategy. It can be seen that the horn bracket adjustment strategy can effectively reduce the acceleration of the steering wheel.

[0052] In some examples, the above-mentioned horn bracket adjustment strategy also includes a horn bracket modal adjustment strategy, which is used to improve the vibration isolation rate of the horn bracket.

[0053] The above methods also include:

[0054] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned horn bracket mounting point adjustment strategy is implemented, the above-mentioned horn bracket modal adjustment strategy is implemented.

[0055] For example, after adjusting the horn bracket mounting point, the acceleration information of the steering wheel during the operation of the horn assembly is measured again. If the acceleration information is less than or equal to the vibration acceleration threshold, the vibration optimization operation can be completed. If the acceleration information is still greater than the vibration acceleration threshold, the horn bracket modal adjustment strategy is executed to change the vibration mode between the horn bracket and the horn, improve the vibration isolation rate of the horn bracket, and reduce the vibration of the steering wheel. Figure 4 The image shows a comparison of vibration acceleration before and after adopting the horn bracket modal adjustment strategy. It can be seen that the horn bracket modal adjustment strategy can effectively reduce the acceleration of the steering wheel.

[0056] In some examples, the above-mentioned horn bracket modal adjustment strategy includes at least one of the following adjustment methods: reducing the thickness of the horn bracket, increasing the length of the horn bracket, and replacing a thicker horn bracket with multiple thinner horn brackets that are overlapped.

[0057] For example, horn bracket modal adjustment strategies include: reducing the thickness of the horn bracket to lower its modal characteristics, increasing the length of the horn bracket to lower its modal characteristics, and replacing a thicker horn bracket with two thinner horn brackets installed overlapping each other. The purpose of these horn bracket modal adjustment strategies is to improve the vibration isolation rate of the horn bracket.

[0058] In some examples, the above-mentioned horn bracket adjustment strategy also includes a horn bracket mounting method adjustment strategy, which is used to reduce the overall vibration transmission rate of the horn bracket.

[0059] The above methods also include:

[0060] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned horn bracket modal adjustment strategy is implemented, the horn bracket installation method adjustment strategy is implemented.

[0061] For example, after implementing the horn bracket modal adjustment strategy, the acceleration information of the steering wheel during the operation of the horn assembly is measured again. If the acceleration information is less than or equal to the vibration acceleration threshold, the vibration optimization operation can be completed. If the acceleration information is still greater than the vibration acceleration threshold, the horn bracket installation method adjustment strategy is executed to reduce the overall vibration transmission rate of the horn bracket, thereby reducing the vibration of the steering wheel. Figure 5 The image shows a comparison of vibration acceleration before and after the horn bracket mounting method adjustment strategy. It can be seen that the horn bracket mounting method adjustment strategy can effectively reduce the acceleration of the steering wheel.

[0062] In some examples, the above-mentioned speaker bracket mounting adjustment strategy includes mounting the tweeter and woofer using their own separate brackets.

[0063] For example, a speaker assembly includes two speakers, a high-frequency speaker and a low-frequency speaker, which are typically connected by a common bracket. When implementing a speaker bracket mounting method adjustment strategy, the high-frequency speakers are mounted on their own independent brackets instead of the common bracket. The purpose of this strategy is to reduce the overall vibration transmission rate of the speaker bracket.

[0064] In some examples, the above-mentioned horn bracket adjustment strategy also includes a horn bracket bushing vibration isolation adjustment strategy, which is used to improve the bushing vibration isolation rate.

[0065] The above methods also include:

[0066] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above bracket installation method adjustment strategy is implemented, the horn bracket bushing vibration isolation adjustment strategy is implemented.

[0067] For example, after adjusting the bracket installation method, the acceleration information of the steering wheel during the operation of the horn assembly is measured again. If the acceleration information is less than or equal to the vibration acceleration threshold, the vibration optimization operation can be completed. If the acceleration information is still greater than the vibration acceleration threshold, the vibration isolation adjustment strategy of the horn bracket bushing is executed to improve the vibration isolation rate of the horn bracket and hinder the transmission of horn vibration. During the adjustment process, the vibration isolation rate of the horn bracket bushing can be increased by a preset vibration isolation rate threshold, which can be set to 1dB to 20dB. Figure 6 The image shows a comparison of vibration acceleration before and after the adoption of the horn bracket bushing vibration isolation adjustment strategy. It can be seen that the horn bracket bushing vibration isolation adjustment strategy can effectively reduce the acceleration of the steering wheel.

[0068] In some examples, the aforementioned bracket bushing vibration isolation adjustment strategy includes reducing the stiffness of the horn bracket bushing.

[0069] In some examples, the above-mentioned speaker power adjustment strategies include reducing the power supply voltage of the woofer and / or reducing the power supply voltage of the tweeter;

[0070] The above methods also include:

[0071] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned support bushing vibration isolation adjustment strategy is implemented, the above-mentioned speaker power adjustment strategy is implemented.

[0072] For example, after implementing the bracket bushing vibration isolation adjustment strategy, the acceleration information of the steering wheel during the operation of the horn assembly is measured again. If the acceleration information is less than or equal to the vibration acceleration threshold, the vibration optimization operation can be completed. If the acceleration information is still greater than the vibration acceleration threshold, the horn sound power adjustment strategy is executed. The horn sound power is reduced by lowering the horn supply voltage to reduce vibration excitation. The supply voltage of a single horn can be reduced or the supply voltage of two horns can be reduced simultaneously. Figure 7 The image shows a comparison of vibration acceleration before and after implementing the horn power adjustment strategy. It can be seen that the horn power adjustment strategy can effectively reduce the acceleration of the steering wheel.

[0073] In some examples, the vibration acceleration and vibration frequency information corresponding to the steering wheel are obtained from a vibration sensor installed on the steering wheel, and the sound emission frequency of the horn assembly is obtained from a vibration sensor installed on the horn bracket and a microphone installed in the vehicle.

[0074] For example, a steering wheel vibration measurement and horn assembly vibration measurement process can be conducted using a steering wheel vibration testing and diagnostic system caused by a car horn. This system includes: a target car with matched high and low frequency horns; a vibration acceleration sensor installed at the "12" o'clock position on the steering wheel; a vibration acceleration sensor installed on the horn bracket mounting point; and a microphone positioned near the driver's right ear. The vibration acceleration sensors and microphone are connected to a vibration and noise data acquisition front-end via cables. This front-end is connected to a computer, forming a steering wheel vibration testing system caused by a car horn. This system can simultaneously adjust the steering wheel vibration suppression strategy and collect steering wheel vibration signals and horn bracket vibration signals under different adjustment strategies. The peak frequency of the horn bracket vibration signal is the horn's emitting frequency.

[0075] In summary, the vibration optimization method for an automotive horn assembly provided in this application can determine the vibration acceleration of the steering wheel based on the vibration acceleration. When the vibration acceleration value of the steering wheel is too large, optimization can be achieved through five methods: horn mounting point adjustment strategy, horn bracket modal adjustment strategy, horn bracket mounting method adjustment strategy, horn bracket bushing vibration isolation adjustment strategy, and horn sound power adjustment strategy. Furthermore, this optimization scheme can also be used to gradually select the corresponding adjustment method based on the magnitude of the accelerating vibration value. Therefore, the optimization method provided in this embodiment not only solves the steering wheel problem caused by the automotive horn but also has the advantage of high optimization efficiency.

[0076] like Figure 8 As shown, this application embodiment also provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of any of the above-mentioned methods for optimizing the vibration of the car horn assembly.

[0077] Since the electronic device described in this embodiment is the device used to implement the vibration optimization device for a car horn assembly in the embodiments of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any device used by those skilled in the art to implement the method in the embodiments of this application falls within the scope of protection of this application.

[0078] In practical implementation, when the computer program 311 is executed by the processor, it can achieve the following: Figure 1 Any of the corresponding implementation methods in the embodiments.

[0079] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0080] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0081] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0082] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0083] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0084] This application also provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device performs the vibration optimization process for the car horn assembly in the corresponding embodiment, including:

[0085] When the horn assembly of the target car emits sound, obtain the vibration acceleration information and vibration frequency information corresponding to the steering wheel of the target car.

[0086] Obtain the sound frequency of the above speaker assembly;

[0087] Based on the aforementioned vibration acceleration information, vibration frequency information, vibration acceleration threshold, and sound emission frequency, a horn bracket adjustment strategy and / or a horn sound emission power adjustment strategy are executed to reduce steering wheel vibration caused when the aforementioned horn assembly emits sound.

[0088] In some embodiments, the above-mentioned horn bracket adjustment strategy includes a horn bracket mounting point adjustment strategy, which is used to select a mounting point with greater dynamic stiffness.

[0089] The above-mentioned implementation of the speaker bracket adjustment strategy and / or speaker power adjustment strategy based on the above-mentioned vibration acceleration information, vibration frequency information, vibration acceleration threshold, and sound emission frequency includes:

[0090] If the vibration acceleration information is greater than the vibration acceleration threshold and / or the difference between the vibration frequency information and the sound frequency is less than a preset difference, the above-mentioned speaker bracket mounting point adjustment strategy is executed.

[0091] In some embodiments, the above-mentioned horn bracket adjustment strategy further includes a horn bracket modal adjustment strategy, which is used to improve the vibration isolation rate of the horn bracket.

[0092] The above methods also include:

[0093] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned horn bracket mounting point adjustment strategy is implemented, the above-mentioned horn bracket modal adjustment strategy is implemented.

[0094] In some embodiments, the above-mentioned horn bracket modal adjustment strategy includes at least one of the following adjustment methods: reducing the thickness of the horn bracket, increasing the length of the horn bracket, and replacing a thicker horn bracket with multiple thinner horn brackets that are overlapped.

[0095] In some embodiments, the above-mentioned horn bracket adjustment strategy also includes a horn bracket mounting method adjustment strategy, which is used to reduce the overall vibration transmission rate of the horn bracket.

[0096] The above methods also include:

[0097] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned horn bracket modal adjustment strategy is implemented, the horn bracket installation method adjustment strategy is implemented.

[0098] In some embodiments, the above-mentioned speaker bracket mounting method adjustment strategy includes mounting the tweeter and woofer using their respective independent brackets.

[0099] In some embodiments, the above-mentioned horn bracket adjustment strategy further includes a horn bracket bushing vibration isolation adjustment strategy, which is used to improve the bushing vibration isolation rate.

[0100] The above methods also include:

[0101] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above bracket installation method adjustment strategy is implemented, the horn bracket bushing vibration isolation adjustment strategy is implemented.

[0102] In some embodiments, the above-mentioned bracket bushing vibration isolation adjustment strategy includes reducing the stiffness of the horn bracket bushing.

[0103] In some embodiments, the above-mentioned speaker power adjustment strategy includes reducing the power supply voltage of the woofer and / or reducing the power supply voltage of the tweeter;

[0104] The above methods also include:

[0105] If the dynamic acceleration information is still greater than the vibration acceleration threshold after the above-mentioned support bushing vibration isolation adjustment strategy is implemented, the above-mentioned speaker power adjustment strategy is implemented.

[0106] In some embodiments, the vibration acceleration information and vibration frequency information corresponding to the steering wheel are obtained based on a vibration sensor installed on the steering wheel, and the sound emission frequency of the horn assembly is obtained based on a vibration sensor installed on the horn bracket and a microphone installed in the vehicle.

[0107] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0108] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0109] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0110] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0111] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0112] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0113] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for optimizing the vibration of an automotive horn assembly, characterized in that, include: When the horn assembly of the target car emits sound, obtain the vibration acceleration information and vibration frequency information corresponding to the steering wheel of the target car; The vibration acceleration and vibration frequency information corresponding to the steering wheel are obtained from the vibration sensor installed on the steering wheel; The sound frequency of the horn assembly is obtained; the sound frequency of the horn assembly is obtained based on a vibration sensor installed on the horn bracket and a microphone installed in the vehicle. Based on the vibration acceleration information, the vibration frequency information, the vibration acceleration threshold, and the sound emission frequency, a horn bracket adjustment strategy and / or a horn sound emission power adjustment strategy are executed to reduce steering wheel vibration caused by the horn assembly emitting sound; the horn bracket adjustment strategy includes a horn bracket mounting point adjustment strategy, which is used to select a mounting point with greater dynamic stiffness; The step of executing the speaker bracket adjustment strategy and / or speaker power adjustment strategy based on the vibration acceleration information, the vibration frequency information, the vibration acceleration threshold, and the sound emission frequency includes: If the vibration acceleration information is greater than the vibration acceleration threshold and / or the difference between the vibration frequency information and the sound frequency is less than a preset difference, the speaker bracket mounting point adjustment strategy is executed. The horn bracket adjustment strategy also includes a horn bracket modal adjustment strategy, which is used to improve the vibration isolation rate of the horn bracket. The method further includes: If the vibration acceleration information is still greater than the vibration acceleration threshold after the horn bracket mounting point adjustment strategy is executed, the horn bracket modal adjustment strategy is executed.

2. The method according to claim 1, characterized in that, The modal adjustment strategy for the speaker bracket includes at least one of the following adjustment methods: reducing the thickness of the speaker bracket, increasing the length of the speaker bracket, or replacing a thicker speaker bracket with multiple thinner speaker brackets that are stacked together.

3. The method according to claim 1, characterized in that, The horn bracket adjustment strategy also includes a horn bracket installation method adjustment strategy, which is used to reduce the overall vibration transmission rate of the horn bracket. The method further includes: If the vibration acceleration information is still greater than the vibration acceleration threshold after the horn bracket modal adjustment strategy is executed, the horn bracket installation method adjustment strategy is executed.

4. The method according to claim 3, characterized in that, The speaker bracket installation method adjustment strategy includes installing the high and low frequency speakers using their respective independent brackets.

5. The method according to claim 3, characterized in that, The horn bracket adjustment strategy also includes a horn bracket bushing vibration isolation adjustment strategy, which is used to improve the bushing vibration isolation rate. The method further includes: If the vibration acceleration information is still greater than the vibration acceleration threshold after the horn bracket installation method adjustment strategy is executed, the horn bracket bushing vibration isolation adjustment strategy is executed.

6. The method according to claim 5, characterized in that, The vibration isolation adjustment strategy for the speaker bracket bushing includes reducing the stiffness of the speaker bracket bushing.

7. The method according to claim 5, characterized in that, The speaker power adjustment strategy includes reducing the power supply voltage of the woofer and / or reducing the power supply voltage of the tweeter. The method further includes: If the vibration acceleration information is still greater than the vibration acceleration threshold after the speaker bracket bushing vibration isolation adjustment strategy is implemented, the speaker sound power adjustment strategy is implemented.

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