Abnormal sound diagnosis method, device, equipment and readable storage medium for vehicle horn

Abstract

A method, device, equipment and readable storage medium for diagnosing abnormal sound of a whole vehicle horn, relating to the field of automobile diagnostic technology, including obtaining target spectrum data corresponding to a target abnormal horn in a whole vehicle state and a target modal frequency corresponding to a target horn bracket in a whole vehicle state; performing spectrum analysis on the target spectrum data and the spectrum data corresponding to a target normal horn to determine the target abnormal frequency corresponding to the target abnormal horn; if the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, it is determined that the target horn bracket is in an abnormal state, and the abnormal state of the target horn bracket is used as the reason for the sound pitch change of the target abnormal horn. Through the present application, the pitch change of the whole vehicle horn sound caused by the whole vehicle horn bracket being in an abnormal state can be effectively identified and diagnosed.

Description

Technical Field

[0001] The present application relates to the field of automobile diagnosis technology, and in particular to a method, device, equipment and readable storage medium for diagnosing abnormal sound of a vehicle horn. Background Art

[0002] The vehicle horn is the vehicle's sound signal device. During the driving process of the car, the driver often sends necessary sound signals through the vehicle horn according to needs and regulations to remind pedestrians and attract the attention of other vehicles, thereby ensuring traffic safety. It can also be used to urge people to move and transmit signals. However, the vehicle horn may have problems with sound distortion during use, such as the sound becomes low and muffled, that is, it does not sound loud and pleasant, which in turn causes the horn sound quality to decline, thus affecting driving and riding comfort.

[0003] There are many reasons that cause the sound of the vehicle horn to change its pitch, such as an abnormality in the horn body or an abnormal state of the vehicle horn bracket (for example, the vehicle horn bracket is improperly designed or the bracket is deformed during assembly). In the related art, when the sound of the vehicle horn changes its pitch due to an abnormality in the horn body, it can usually be accurately and quickly identified. However, the reasons for the improper design of the vehicle horn bracket or the deformation of the bracket during assembly cannot be effectively identified, so that accurate measures cannot be taken to solve the problem of the pitch change of the vehicle horn. Therefore, when the vehicle horn bracket is in an abnormal state as the reason for the pitch change of the vehicle horn, how to effectively identify the cause of the pitch change is a problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a method, device, equipment and readable storage medium for diagnosing abnormal sound of a vehicle horn, which can solve the technical problem in the prior art that it is impossible to effectively identify the abnormal state of the vehicle horn bracket causing the vehicle horn sound to change.

[0005] In a first aspect, an embodiment of the present application provides a method for diagnosing abnormal sound of a vehicle speaker, comprising the following steps:

[0006] Acquire target frequency spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state;

[0007] Performing spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker to determine the target abnormal frequency corresponding to the target abnormal speaker;

[0008] If the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, it is determined that the target speaker bracket is in an abnormal state, and the abnormal state of the target speaker bracket is used as the reason for the sound distortion of the target abnormal speaker.

[0009] In combination with the first aspect, in one implementation, after the step of determining the target abnormal frequency corresponding to the target abnormal speaker, the method further includes:

[0010] If the difference between the target abnormal frequency and the target modal frequency is outside a preset difference range, it is determined that the target speaker bracket is in a normal state, and the contact between the target speaker bracket and the vehicle body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0011] In combination with the first aspect, in one embodiment, after the step of using the contact between the target speaker bracket and the vehicle body as the cause of the sound pitch change of the target abnormal speaker, the method further includes:

[0012] A boss is constructed at the mounting hole of the target speaker bracket, so as to achieve clearance fit between the target speaker bracket and the vehicle body through the boss.

[0013] In combination with the first aspect, in one embodiment, before the step of acquiring the target spectrum data corresponding to the target abnormal horn in the whole vehicle state and the target modal frequency corresponding to the target horn bracket in the whole vehicle state, it also includes:

[0014] Performing vibration and noise tests on the speaker assembly monomer where the target abnormal speaker is located based on a test bench to obtain a target operating frequency corresponding to the speaker assembly monomer;

[0015] If the target operating frequency is within the preset frequency range, the step of acquiring the target frequency spectrum data corresponding to the target abnormal horn in the whole vehicle state and the target modal frequency corresponding to the target horn bracket in the whole vehicle state is performed;

[0016] If the target operating frequency is outside the preset frequency range, the abnormality of the target abnormal speaker body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0017] In a second aspect, an embodiment of the present application provides a vehicle horn abnormal sound diagnosis device, the vehicle horn abnormal sound diagnosis device comprising:

[0018] An acquisition module, which is used to acquire target frequency spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state;

[0019] An analysis module, which is used to perform spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker, and determine the target abnormal frequency corresponding to the target abnormal speaker;

[0020] The diagnostic module is used to determine that the target speaker bracket is in an abnormal state if the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, and to use the abnormal state of the target speaker bracket as the cause of the sound distortion of the target abnormal speaker.

[0021] In conjunction with the second aspect, in one implementation, the diagnosis module is further used for:

[0022] If the difference between the target abnormal frequency and the target modal frequency is outside a preset difference range, it is determined that the target speaker bracket is in a normal state, and the contact between the target speaker bracket and the vehicle body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0023] In conjunction with the second aspect, in one embodiment, the device further includes a building module, which is used to:

[0024] A boss is constructed at the mounting hole of the target speaker bracket, so as to achieve clearance fit between the target speaker bracket and the vehicle body through the boss.

[0025] In conjunction with the second aspect, in one embodiment, the device further includes a testing module;

[0026] The test module is used to perform vibration and noise tests on the speaker assembly monomer where the target abnormal speaker is located based on the test bench to obtain a target operating frequency corresponding to the speaker assembly monomer;

[0027] The diagnostic module is also used to enable the acquisition module to execute the step of acquiring target spectrum data corresponding to the target abnormal speaker in the whole vehicle state and the target modal frequency corresponding to the target speaker bracket in the whole vehicle state if the target operating frequency is within the preset frequency range; if the target operating frequency is outside the preset frequency range, the abnormality of the target abnormal speaker body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0028] In a third aspect, an embodiment of the present application provides a whole vehicle horn abnormal sound diagnosis device, the whole vehicle horn abnormal sound diagnosis device comprising a processor, a memory, and a whole vehicle horn abnormal sound diagnosis program stored in the memory and executable by the processor, wherein when the whole vehicle horn abnormal sound diagnosis program is executed by the processor, the steps of the aforementioned whole vehicle horn abnormal sound diagnosis method are implemented.

[0029] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a vehicle horn abnormal sound diagnosis program is stored. When the vehicle horn abnormal sound diagnosis program is executed by a processor, the steps of the aforementioned vehicle horn abnormal sound diagnosis method are implemented.

[0030] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0031] By performing spectrum analysis on the target spectrum data of the target abnormal speaker and the spectrum data of the target normal speaker, the target abnormal frequency of the target abnormal speaker is determined, and then based on the difference between the target abnormal frequency and the target modal frequency, it is judged whether the target speaker bracket is in an abnormal state. If the target abnormal frequency is very close to the target modal frequency, it means that the target speaker bracket may be deformed or improperly designed, causing the speaker bracket to be forced to vibrate when the vehicle speaker is working, so that the high-order modes on the speaker bracket are excited and transmitted through the air and structural paths, thereby causing the modal frequency of the speaker bracket to appear in the speaker sound frequency, so that the cause of the sound pitch change of the target abnormal speaker can be accurately diagnosed as the target speaker bracket being in an abnormal state. It can be seen that when the cause of the sound pitch change of the abnormal speaker is that the speaker bracket is in an abnormal state, the embodiment of the present application can effectively identify and diagnose the cause of the sound pitch change. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a flow chart of an embodiment of the abnormal sound diagnosis method for a vehicle horn of the present application;

[0033] Figure 2 A schematic diagram showing a comparison of in-vehicle noise spectra corresponding to the target abnormal speaker and the target normal speaker involved in the embodiment of the present application when they are working;

[0034] Figure 3 A schematic diagram showing a comparison of vibration spectra of mounting points corresponding to the target abnormal speaker and the target normal speaker involved in the embodiment of the present application when they are working;

[0035] Figure 4 A schematic diagram of the abnormal speaker bracket mode involved in the embodiment of the present application;

[0036] Figure 5 It is a structural schematic diagram of a speaker bracket provided with a boss involved in the embodiment of the present application;

[0037] Figure 6 This is a schematic diagram of the hardware structure of the abnormal sound diagnosis device for the vehicle horn involved in the embodiment of the present application.

[0038] In the figure: 1-target speaker bracket, 11-boss. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0041] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0042] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0043] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0044] The embodiments of the present application provide a method, device, equipment and readable storage medium for diagnosing abnormal sound of a vehicle horn, which can solve the technical problem in the prior art that it is impossible to effectively identify the change in the tone of the vehicle horn sound caused by the abnormal state of the vehicle horn bracket.

[0045] To achieve the above objectives, the overall idea of ​​this application is as follows:

[0046] A method for diagnosing abnormal sound of a vehicle horn, the method comprising the following steps:

[0047] Acquire target frequency spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state;

[0048] Performing spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker to determine the target abnormal frequency corresponding to the target abnormal speaker;

[0049] If the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, it is determined that the target speaker bracket is in an abnormal state, and the abnormal state of the target speaker bracket is used as the reason for the sound distortion of the target abnormal speaker.

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0051] In a first aspect, an embodiment of the present application provides a method for diagnosing abnormal sound of a vehicle horn.

[0052] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of an embodiment of the abnormal sound diagnosis method for a vehicle horn of the present application. Figure 1 As shown, the abnormal sound diagnosis method of the vehicle horn includes the following steps:

[0053] Step S10: acquiring target frequency spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state;

[0054] For example, in this embodiment, in order to effectively identify the cause of the pitch change of the whole vehicle horn, after determining that there is a target abnormal horn with pitch change, the target abnormal horn is operated in the whole vehicle state, and the whole vehicle interior noise test and horn installation point vibration test are performed to obtain the interior noise spectrum data corresponding to the target abnormal horn (i.e. Figure 2 The spectrum data corresponding to the solid line in the middle) and the vibration spectrum data of the installation point (i.e. Figure 3The spectrum data corresponding to the solid line in the figure) is taken, and the in-vehicle noise spectrum data and the installation point vibration spectrum data are taken as the target spectrum data of the target abnormal horn; at the same time, the modal of the target horn bracket in the whole vehicle state is tested to obtain the corresponding target modal frequency (such as Figure 4 It should be noted that the target speaker bracket is the bracket where the target abnormal speaker is located.

[0055] Among them, the test of the target speaker bracket mode can be achieved by the following method: first, it is preferred to set the test bandwidth to 1000Hz and the frequency resolution to 0.25Hz, and arrange a vibration sensor at the installation point of the speaker and the bracket, and use a hammer to hit the speaker along the X, Y, and Z directions of the local coordinate system of the speaker assembly to test the frequency response of the bracket in three directions, and take the frequency peak between 100 and 350Hz as the target modal frequency; it should be noted that since the vibration sensor pasted at the installation point will increase the mass of the speaker assembly, there may be a deviation between the modal frequency peak and the abnormal frequency. Therefore, when the difference between the modal peak frequency and the abnormal frequency of the speaker is within ±10Hz, it can be considered to be a test error, that is, when the difference between the modal frequency peak and the abnormal frequency is within the test error, it can be determined that the abnormal sound frequency of the speaker is caused by the excitation of the speaker bracket mode.

[0056] Step S20: performing spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker to determine the target abnormal frequency corresponding to the target abnormal speaker;

[0057] Exemplarily, in this embodiment, normal speakers of different models are operated separately in the whole vehicle state, and the interior noise test and speaker installation point vibration test of the whole vehicle are carried out to obtain the interior noise spectrum data and installation point vibration spectrum data corresponding to each model, and the interior noise spectrum data and installation point vibration spectrum data corresponding to the normal speakers of each model are stored, which can be stored in a local database or in a cloud database.

[0058] Therefore, when it is necessary to diagnose the cause of the sound distortion of the target abnormal speaker, it is only necessary to find the target normal speaker with the same model as the target abnormal speaker from the database and select the in-vehicle noise spectrum data corresponding to the target normal speaker (i.e. Figure 2 The spectrum data corresponding to the dashed line in the middle) and the vibration spectrum data of the installation point (i.e. Figure 3 Spectrum data corresponding to the middle dotted line); then, the target abnormal speaker and the target normal speaker are spectrally analyzed in combination with the in-vehicle noise spectrum data and the installation point vibration spectrum data. After the spectrum analysis, that is, after comparing the spectrum difference between the target abnormal speaker and the target normal speaker, the target abnormal frequency corresponding to the target abnormal speaker is found.

[0059] It should be noted that each speaker has its corresponding fundamental frequency range, which is determined according to actual needs. For example, assuming that the fundamental frequency of a normal speaker is 430 Hz and 510 Hz, after performing spectrum analysis on the sound of an abnormal speaker, it can be found that in addition to the fundamental frequency of the normal speaker, there are also abnormal frequencies with fundamental frequencies of 180 Hz and 240 Hz in the spectrum, and multiple harmonic order frequencies of the abnormal fundamental frequencies are often found, that is, frequency components that are multiples of 180 Hz or 240 Hz. Therefore, in this embodiment, the fundamental frequency of the abnormal sound can be used as the target abnormal frequency, that is, 180 Hz and 240 Hz are used as the target abnormal frequencies.

[0060] Step S30: If the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, it is determined that the target speaker bracket is in an abnormal state, and the abnormal state of the target speaker bracket is used as the reason for the sound distortion of the target abnormal speaker.

[0061] For example, it should be understood that if the design of the vehicle speaker bracket is improper or the speaker bracket is deformed during assembly, the speaker bracket will be forced to vibrate when the vehicle speaker is working, so that the high-order modes of the speaker bracket are excited and transmitted through the air and structural paths, and then the bracket modal frequency and harmonic order appear in the speaker sound frequency, which in turn causes the sound of the vehicle speaker to change. Therefore, when diagnosing the cause of the sound change of the target abnormal speaker, the target abnormal frequency and the target modal frequency will be used to check whether the assembly where the target abnormal speaker is located is damaged, that is, to determine whether the target speaker bracket is in an abnormal state, and then determine the cause of the sound change of the target abnormal speaker.

[0062] Specifically, if the difference between the target abnormal frequency and the target modal frequency is within the preset difference range, it means that the modal frequency of the speaker bracket appears in the abnormal speaker sound frequency, that is, the mode of the target speaker bracket is excited, which causes the speaker working frequency to be abnormal; in other words, the target speaker bracket may have improper design problems or the speaker bracket may be deformed during assembly, that is, the target speaker bracket is in an abnormal state. Therefore, the abnormal state of the target speaker bracket is regarded as the reason for the sound pitch change of the target abnormal speaker, thereby effectively realizing the accurate identification and diagnosis of the reason for the sound pitch change of the abnormal speaker.

[0063] It should be noted that, due to the vibration sensor pasted on the horn bracket during the vehicle test, the frequency of the modal test is slightly different from the abnormal frequency, that is, the target abnormal frequency and the target modal frequency will not be completely consistent. In other words, when it is determined that the target abnormal frequency and the target modal frequency are corresponding, a certain difference between the target abnormal frequency and the target modal frequency is allowed. Therefore, as long as the difference between the target abnormal frequency and the target modal frequency is within the preset difference range, the specific value setting of the preset difference range can be determined according to actual needs and is not limited here. For example, the preset difference range is set to [-10, 10].

[0064] In addition, after determining that the reason for the sound distortion of the target abnormal speaker is that the target speaker bracket is in an abnormal state, the installation status of the target speaker bracket can be checked, such as whether the target speaker bracket is bent or there are protrusions on the bracket, causing the target speaker bracket to warp and deform, etc.; if the above problems exist in the installation status, the target speaker bracket is restored to a normal state to solve the problem of sound distortion.

[0065] Furthermore, in one embodiment, before the step of obtaining the target frequency spectrum data corresponding to the target abnormal horn in the whole vehicle state and the target modal frequency corresponding to the target horn bracket in the whole vehicle state, the method further includes:

[0066] Performing vibration and noise tests on the speaker assembly monomer where the target abnormal speaker is located based on a test bench to obtain a target operating frequency corresponding to the speaker assembly monomer;

[0067] If the target operating frequency is within the preset frequency range, the step of acquiring the target frequency spectrum data corresponding to the target abnormal horn in the whole vehicle state and the target modal frequency corresponding to the target horn bracket in the whole vehicle state is performed;

[0068] If the target operating frequency is outside the preset frequency range, the abnormality of the target abnormal speaker body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0069] Exemplarily, in this embodiment, before determining whether the cause of the sound change of the target abnormal speaker is that the target speaker bracket is in an abnormal state, it can be determined whether the cause of the sound change of the target abnormal speaker is that the target abnormal speaker body is abnormal. Specifically, on the test bench, the vibration and noise of the speaker assembly monomer where the target abnormal speaker is located are tested during operation, and then the target operating frequency corresponding to the speaker assembly monomer is obtained; then it is determined whether the target operating frequency is within the normal operating frequency range corresponding to the speaker assembly monomer. If so, it means that the target abnormal speaker body is normal. At this time, it is necessary to further determine whether the target speaker bracket in the speaker assembly monomer is in an abnormal state; if not, it means that the target abnormal speaker body is abnormal, so the abnormality of the target abnormal speaker body can be directly regarded as the cause of the sound change of the target abnormal speaker, and the staff can directly replace the target abnormal speaker body.

[0070] Furthermore, in one embodiment, after the step of determining the target abnormal frequency corresponding to the target abnormal speaker, the method further includes:

[0071] If the difference between the target abnormal frequency and the target modal frequency is outside a preset difference range, it is determined that the target speaker bracket is in a normal state, and the contact between the target speaker bracket and the vehicle body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0072] Exemplarily, in this embodiment, if the difference between the target abnormal frequency and the target modal frequency is outside the preset difference range, it means that the target speaker bracket has no improper design problem or the speaker bracket has not been deformed during assembly, so the target speaker bracket is determined to be in a normal state; and at this time, the reason why the target abnormal speaker has a sound pitch change is most likely that the target speaker bracket is in contact with the vehicle body, such as the contact point between the left side of the target speaker bracket and the vehicle body is within the elastic range of the modal deformation of the target speaker bracket, while the right side of the target speaker bracket is not in contact with the vehicle body. When the target abnormal speaker is working, the mode on the right side of the target speaker bracket will not be excited, while the mode on the left side of the target speaker bracket will be excited, which will then cause the target speaker bracket to have a resonant sound, and if the contact area is large, the vibration of the target speaker bracket will be transmitted more to the vehicle body side, thereby causing abnormal vibration of the vehicle body. Therefore, at this time, the contact between the target speaker bracket and the vehicle body can be directly regarded as the reason for the sound pitch change of the target abnormal speaker.

[0073] Furthermore, in one embodiment, after the step of using the contact between the target speaker bracket and the vehicle body as the cause of the sound distortion of the target abnormal speaker, the method further includes:

[0074] A boss is constructed at the mounting hole of the target speaker bracket, so as to achieve clearance fit between the target speaker bracket and the vehicle body through the boss.

[0075] For example, in this embodiment, if the target speaker bracket is in contact with the vehicle body, a mounting hole on the target speaker bracket 1 may be provided with a Figure 5 The boss 11 shown makes it possible to achieve clearance fit based on the boss 11 when the target speaker bracket 1 is connected to the vehicle body through the mounting hole, thereby separating the target speaker bracket from the vehicle body, that is, ensuring that the target speaker bracket has no contact with the vehicle body during the movement of the target abnormal speaker, so that the target of the target speaker bracket will not be excited, thereby eliminating the speaker resonance sound, and greatly reducing the vibration transmission of the bracket, thereby eliminating the abnormal vibration of the vehicle body. It should be noted that the thickness value of the boss can be set according to actual needs and is not limited here. For example, the thickness of the boss is set to 1.5mm. It can be seen that this embodiment can effectively identify and locate the source of abnormal sound of the speaker, and provides a problem-solving direction, which effectively saves time for problem investigation.

[0076] In a second aspect, an embodiment of the present application also provides a device for diagnosing abnormal sound of a vehicle horn.

[0077] In one embodiment, the abnormal sound diagnosis device for a vehicle horn includes:

[0078] An acquisition module, which is used to acquire target frequency spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state;

[0079] An analysis module, which is used to perform spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker, and determine the target abnormal frequency corresponding to the target abnormal speaker;

[0080] The diagnostic module is used to determine that the target speaker bracket is in an abnormal state if the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, and to use the abnormal state of the target speaker bracket as the cause of the sound distortion of the target abnormal speaker.

[0081] Furthermore, in one embodiment, the diagnosis module is also used for:

[0082] If the difference between the target abnormal frequency and the target modal frequency is outside a preset difference range, it is determined that the target speaker bracket is in a normal state, and the contact between the target speaker bracket and the vehicle body is regarded as the cause of the sound distortion of the target abnormal speaker.

[0083] Furthermore, in one embodiment, the abnormal sound diagnosis device for a whole vehicle horn also includes a construction module, which is used to: construct a boss at the mounting hole of the target horn bracket to achieve clearance fit between the target horn bracket and the vehicle body through the boss.

[0084] Furthermore, in one embodiment, the abnormal sound diagnosis device for the whole vehicle horn also includes a test module; the test module is used to perform vibration and noise tests on the horn assembly unit in which the target abnormal horn is located based on a test bench to obtain a target operating frequency corresponding to the horn assembly unit; the diagnosis module is also used to enable the acquisition module to execute the step of acquiring target spectrum data corresponding to the target abnormal horn in the whole vehicle state and a target modal frequency corresponding to the target horn bracket in the whole vehicle state if the target operating frequency is within a preset frequency range; if the target operating frequency is outside the preset frequency range, the abnormality of the target abnormal horn body is regarded as the cause of the sound distortion of the target abnormal horn.

[0085] Among them, the functional implementation of each module in the above-mentioned vehicle horn abnormal sound diagnosis device corresponds to the various steps in the above-mentioned vehicle horn abnormal sound diagnosis method embodiment, and its functions and implementation processes will not be repeated here one by one.

[0086] In a third aspect, an embodiment of the present application provides a device for diagnosing abnormal sound of a vehicle horn. The device for diagnosing abnormal sound of a vehicle horn may be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0087] Reference Figure 6 , Figure 6 The hardware structure diagram of the abnormal sound diagnosis device for the whole vehicle horn involved in the embodiment of the present application is shown in FIG. In the embodiment of the present application, the abnormal sound diagnosis device for the whole vehicle horn may include a processor, a memory, a communication interface and a communication bus.

[0088] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0089] The communication interface includes input / output (I / O) interface, physical interface and logical interface, etc., which are used to realize the interconnection of devices inside the vehicle speaker abnormal sound diagnosis device, and the interface used to realize the interconnection of the vehicle speaker abnormal sound diagnosis device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber optic interface, an ATM interface, etc.; the user device can be a display (Display), a keyboard (Keyboard), etc.

[0090] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0091] The processor may be a general-purpose processor, which may call the vehicle horn abnormal sound diagnosis program stored in the memory and execute the vehicle horn abnormal sound diagnosis method provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the vehicle horn abnormal sound diagnosis program is called may refer to the various embodiments of the vehicle horn abnormal sound diagnosis method of the present application, which will not be repeated here.

[0092] Those skilled in the art will understand that Figure 6 The hardware structure shown in the figure does not constitute a limitation on the present application, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0093] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0094] The readable storage medium of the present application stores a whole vehicle horn abnormal sound diagnosis program, wherein when the whole vehicle horn abnormal sound diagnosis program is executed by a processor, the steps of the whole vehicle horn abnormal sound diagnosis method as described above are implemented.

[0095] Among them, the method implemented when the vehicle horn abnormal sound diagnosis program is executed can refer to the various embodiments of the vehicle horn abnormal sound diagnosis method of the present application, and will not be repeated here.

[0096] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0097] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0098] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for diagnosing abnormal sound of a vehicle horn, characterized in that: The abnormal sound diagnosis method of the vehicle horn comprises the following steps: Obtain target spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state, wherein the target spectrum data is in-vehicle noise spectrum data and mounting point vibration spectrum data generated after controlling the target abnormal horn to operate in a complete vehicle state and performing an in-vehicle noise test and a horn mounting point vibration test, and the target modal frequency is a frequency peak value that appears after a knock test is performed on the target horn bracket operating in a complete vehicle state, and the frequency peak value is within a preset frequency range; Performing spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker to determine the target abnormal frequency corresponding to the target abnormal speaker; If the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, it is determined that the target speaker bracket is in an abnormal state, and the abnormal state of the target speaker bracket is used as the reason for the sound distortion of the target abnormal speaker.

2. The abnormal sound diagnosis method of a vehicle horn according to claim 1, characterized in that: After the step of determining the target abnormal frequency corresponding to the target abnormal speaker, the method further includes: If the difference between the target abnormal frequency and the target modal frequency is outside a preset difference range, it is determined that the target speaker bracket is in a normal state, and the contact between the target speaker bracket and the vehicle body is regarded as the cause of the sound distortion of the target abnormal speaker.

3. The abnormal sound diagnosis method of a vehicle horn according to claim 2, characterized in that: After the step of using the contact between the target speaker bracket and the vehicle body as the cause of the sound distortion of the target abnormal speaker, the method further includes: A boss is constructed at the mounting hole of the target speaker bracket, so as to achieve clearance fit between the target speaker bracket and the vehicle body through the boss.

4. The abnormal sound diagnosis method of a vehicle horn according to claim 1, characterized in that: Before the step of acquiring the target frequency spectrum data corresponding to the target abnormal horn in the whole vehicle state and the target modal frequency corresponding to the target horn bracket in the whole vehicle state, the method further includes: Performing vibration and noise tests on the speaker assembly monomer where the target abnormal speaker is located based on a test bench to obtain a target operating frequency corresponding to the speaker assembly monomer; If the target operating frequency is within the preset frequency range, the step of acquiring the target frequency spectrum data corresponding to the target abnormal horn in the whole vehicle state and the target modal frequency corresponding to the target horn bracket in the whole vehicle state is performed; If the target operating frequency is outside the preset frequency range, the abnormality of the target abnormal speaker body is regarded as the cause of the sound distortion of the target abnormal speaker.

5. A vehicle horn abnormal sound diagnosis device, characterized in that: The abnormal sound diagnosis device for the vehicle horn comprises: An acquisition module, which is used to acquire target spectrum data corresponding to a target abnormal horn in a complete vehicle state and a target modal frequency corresponding to a target horn bracket in a complete vehicle state, wherein the target spectrum data is in-vehicle noise spectrum data and mounting point vibration spectrum data generated after controlling the target abnormal horn to work in a complete vehicle state and performing an in-vehicle noise test and a horn mounting point vibration test, and the target modal frequency is a frequency peak value that appears after a knock test is performed on a target horn bracket working in a complete vehicle state, and the frequency peak value is within a preset frequency range; An analysis module, which is used to perform spectrum analysis on the target spectrum data and the spectrum data corresponding to the target normal speaker, and determine the target abnormal frequency corresponding to the target abnormal speaker; The diagnostic module is used to determine that the target speaker bracket is in an abnormal state if the difference between the target abnormal frequency and the target modal frequency is within a preset difference range, and to use the abnormal state of the target speaker bracket as the cause of the sound distortion of the target abnormal speaker.

6. The abnormal sound diagnosis device for a vehicle horn as claimed in claim 5, characterized in that: The diagnostic module is also used to: If the difference between the target abnormal frequency and the target modal frequency is outside a preset difference range, it is determined that the target speaker bracket is in a normal state, and the contact between the target speaker bracket and the vehicle body is regarded as the cause of the sound distortion of the target abnormal speaker.

7. The abnormal sound diagnosis device for a vehicle horn as claimed in claim 6, characterized in that: The device also includes a building block for: A boss is constructed at the mounting hole of the target speaker bracket, so as to achieve clearance fit between the target speaker bracket and the vehicle body through the boss.

8. The abnormal sound diagnosis device for a vehicle horn as claimed in claim 5, characterized in that: The device also includes a testing module; The test module is used to perform vibration and noise tests on the speaker assembly monomer where the target abnormal speaker is located based on the test bench to obtain a target operating frequency corresponding to the speaker assembly monomer; The diagnostic module is also used to enable the acquisition module to execute the step of acquiring target spectrum data corresponding to the target abnormal speaker in the whole vehicle state and the target modal frequency corresponding to the target speaker bracket in the whole vehicle state if the target operating frequency is within the preset frequency range; if the target operating frequency is outside the preset frequency range, the abnormality of the target abnormal speaker body is regarded as the cause of the sound distortion of the target abnormal speaker.

9. A vehicle horn abnormal sound diagnostic device, characterized in that: The whole vehicle horn abnormal sound diagnosis device includes a processor, a memory, and a whole vehicle horn abnormal sound diagnosis program stored in the memory and executable by the processor, wherein when the whole vehicle horn abnormal sound diagnosis program is executed by the processor, the steps of the whole vehicle horn abnormal sound diagnosis method as described in any one of claims 1 to 4 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a vehicle horn abnormal sound diagnosis program, wherein when the vehicle horn abnormal sound diagnosis program is executed by the processor, the steps of the vehicle horn abnormal sound diagnosis method as described in any one of claims 1 to 4 are implemented.

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