CN115630510A - Method, device, equipment, medium and program product for analyzing brake noise of automobile - Google Patents
Method, device, equipment, medium and program product for analyzing brake noise of automobile Download PDFInfo
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- CN115630510A CN115630510A CN202211334241.0A CN202211334241A CN115630510A CN 115630510 A CN115630510 A CN 115630510A CN 202211334241 A CN202211334241 A CN 202211334241A CN 115630510 A CN115630510 A CN 115630510A
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Abstract
The invention provides a method, a device, equipment, a medium and a program product for analyzing automobile braking noise, wherein the method for analyzing the automobile braking noise comprises the following steps: the method comprises the following steps of S1, acquiring various assembly frequencies generated by the brake assembly under various working conditions, wherein the working conditions comprise piston pressure or brake disc rotating speed; s2, acquiring the natural frequency of each braking part in the brake assembly; s3, carrying out complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise working condition and an assembly noise frequency which can cause noise, wherein the noise working condition is a working condition for generating noise, and the assembly noise frequency is a frequency for generating noise by the brake assembly under the noise working condition; and S4, analyzing the assembly noise frequency under each noise working condition, and finding out a plurality of noise braking parts causing the assembly noise frequency. The automobile braking noise analysis method can shorten the product development period and reduce the test cost.
Description
Technical Field
The invention relates to the field of automobiles, in particular to an automobile braking noise analysis method, device, equipment, medium and program product.
Background
A disc brake is a mechanical device that uses the friction between a brake disc and a friction pad to decelerate or stop the vehicle. However, when the brake works, brake screech is sometimes generated, which not only affects the comfort experience of drivers and passengers, but also affects the surrounding environment, and lowers the market competitiveness of products.
At present, a main flow brake supplier mainly adopts a later-stage experimental method for brake noise, namely, after the occurrence of noise is confirmed, the feasibility of a noise generation inhibiting scheme is verified through a test means (changing the chamfer shape of a friction plate, replacing the formula of the friction plate and the like), the verification is performed through continuous trial and error, the product development time is long, and the cost is high.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a method, an apparatus, a device, a medium, and a program product for analyzing braking noise of an automobile, which can shorten a product development cycle and reduce a test cost.
In order to solve the above problem, a first aspect of the present invention provides a method for analyzing braking noise of an automobile, including:
the method comprises the following steps of S1, acquiring various assembly frequencies generated by the brake assembly under various working conditions, wherein the working conditions comprise piston pressure or brake disc rotating speed;
s2, acquiring the natural frequency of each braking part in the brake assembly;
s3, carrying out complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise working condition and an assembly noise frequency which can cause noise, wherein the noise working condition is a working condition for generating noise, and the assembly noise frequency is a frequency for generating noise by the brake assembly under the noise working condition;
and S4, analyzing the assembly noise frequency under each noise working condition, and finding out a plurality of noise braking parts causing the assembly noise frequency.
Further, the step S4 includes:
s41, ranking the contribution quantity of the assembly noise frequency caused by each noise braking part under each noise working condition;
and S42, finding out a plurality of noise braking parts causing the noise frequency of the assembly according to the contribution ranking.
Further, the method for analyzing the braking noise of the automobile further comprises the following steps: a
And S5, adjusting the natural frequency of each noise braking part to change the assembly damping, wherein the assembly damping is the probability of the occurrence of the assembly noise frequency.
Further, the step S5 includes:
step S51, calculating the frequency interval of the natural frequency among the noise braking parts;
and S52, adjusting the natural frequency of each noise braking part according to the corresponding relation between the frequency interval and the assembly damping until the frequency interval reaches the frequency interval corresponding to the preset assembly damping.
Further, the method further comprises:
step S6, obtaining a corresponding relationship between the frequency interval and the assembly damping, wherein the step S6 includes:
acquiring assembly damping under different frequency intervals;
and establishing a corresponding relation between the frequency interval and the assembly damping based on the assembly damping and the corresponding frequency interval.
A second aspect of the present invention provides an automobile braking noise analysis device, including:
the statics calculation module is used for acquiring various assembly frequencies generated by the brake assembly under various working conditions, wherein the working conditions comprise piston pressure or brake disc rotating speed;
the natural frequency calculation module is used for acquiring the natural frequency of each braking part in the brake assembly;
the complex modal calculation module is used for carrying out complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise working condition and an assembly noise frequency which can cause noise, wherein the noise working condition is a working condition for generating noise, and the assembly noise frequency is a frequency for generating noise by the brake assembly under the noise working condition;
and the searching module is used for analyzing based on each assembly noise and finding out a plurality of noise braking parts causing each assembly noise frequency.
Further, the car braking noise analysis device further includes:
a noise optimization module for adjusting the natural frequency of each of the noise braking components to vary the assembly damping.
A third aspect of the present invention provides an electronic device, which includes a processor and a memory, where at least one instruction or at least one program is stored in the memory, and the at least one instruction or the at least one program is loaded by the processor and executed to implement the steps of the method for analyzing braking noise of a vehicle as described in any one of the above.
A fourth aspect of the present invention provides a computer-readable storage medium, in which at least one instruction or at least one program is stored, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the steps of the method for analyzing braking noise of a vehicle as described in any one of the above.
A fifth aspect of the invention provides a computer program product comprising computer programs/instructions, characterized in that the computer programs/instructions, when executed by a processor, implement the steps of the method for analyzing braking noise of a vehicle as described in any one of the above.
Due to the technical scheme, the invention has the following beneficial effects:
according to the automobile braking noise analysis method provided by the embodiment of the invention, the assembly frequency of the brake assembly and the natural frequency of each braking part are subjected to complex modal analysis to obtain the assembly noise frequency under various noise working conditions, the assembly noise frequency is analyzed to find out a plurality of noise braking parts causing the assembly noise frequency, and the parts are formulated for optimizing through subsequent noise, so that blind trial and error and optimization are avoided, the product development cycle can be shortened, and the test cost is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart of a method for analyzing brake noise of a vehicle according to one embodiment of the present invention;
FIG. 2 is a schematic view of an automotive braking noise analysis apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
In order to make the objects, technical solutions and advantages disclosed in the embodiments of the present invention more clearly apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the invention and are not intended to limit the embodiments of the invention. In the technical scheme of the embodiment of the invention, the acquisition, storage, use, processing and the like of the data all accord with relevant regulations of national laws and regulations.
Next, a method for analyzing brake noise of an automobile according to an embodiment of the present invention will be described.
As shown in fig. 1, the method for analyzing braking noise of an automobile according to an embodiment of the present invention includes:
s1, acquiring various assembly frequencies generated by a brake assembly under various working conditions, wherein the working conditions comprise piston pressure or brake disc rotating speed.
The excitation is applied to the brake assembly such that the assembly frequency of the brake assembly under various operating conditions (e.g., piston pressure, brake disc speed, etc.) can be calculated by the Abaqus software (an engineering simulation of finite element software).
And S2, acquiring the natural frequency of each braking part in the brake assembly.
The natural frequency of each braking part is irrelevant to external excitation, is a natural attribute of the structure, and can be displayed intuitively through numerical values by utilizing Abaqus software.
And S3, carrying out complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise working condition and an assembly noise frequency which can cause noise, wherein the noise working condition is a working condition for generating noise, and the assembly noise frequency is a frequency for generating noise of the brake assembly under the noise working condition. The invention relates to a method for analyzing complex modes, in particular to a method for analyzing complex modes, wherein the complex mode analysis method is a known technology, and the noise problem is solved by applying the technology.
That is to say, which kind of operating mode can cause which kind of assembly noise frequency through the analysis of the complex mode to in pertinence go to improve this assembly noise frequency.
And S4, analyzing the assembly noise frequency under each noise working condition, and finding out a plurality of noise braking parts causing the assembly noise frequency. Wherein, the noise braking part is a braking part generating noise.
The effect of each brake component on the assembly noise frequency under each noise condition can be analyzed, for example, under the noise condition, the noise brake component can be found according to the similarity between the natural frequency of one brake component and the assembly noise frequency, or according to the combination of the natural frequencies of two brake components and the similarity between the assembly noise frequencies. Or under the noise working condition, the natural frequency of one or two brake parts is removed each time, the natural frequency of the brake part is added, then the next one or two brake parts \8230, 8230, are removed, and the noise brake part is found out according to the influence of the removed natural frequency of the brake part on the noise frequency of the assembly. Therefore, noise braking parts causing assembly noise frequency under various noise working conditions can be found out, and improvement aiming at the noise braking parts is facilitated.
Optionally, step S4 includes: s41, ranking the contribution quantity of the assembly noise frequency caused by each noise brake part under each noise working condition; and S42, finding out a plurality of noise braking parts causing the noise frequency of the assembly according to the contribution ranking.
That is, a plurality of noise braking parts, such as the braking parts with the first three contribution amounts, which rank the contribution amounts causing the total noise frequency, are found in each, thereby facilitating more targeted improvement of the noise braking parts.
According to the automobile braking noise analysis method, complex modal analysis is carried out on the assembly frequency of the brake assembly and the natural frequency of each braking part, the assembly noise frequency under various noise working conditions is obtained, the assembly noise frequency is analyzed, a plurality of noise braking parts causing the assembly noise frequency are found out, and the parts are formulated for optimizing the noise subsequently, so that blind trial and error and optimization are avoided. Therefore, the product development period can be shortened, and the test cost can be reduced.
According to some embodiments of the present invention, the method for analyzing the braking noise of the vehicle further includes step S5 of adjusting the natural frequency of each noise braking component to change the assembly damping, wherein the assembly damping is the probability of the occurrence of the assembly noise frequency.
The natural frequency of the noise braking part is changed, for example, the shape, the material and the like of the noise braking part are changed, so that the natural frequency of the noise braking part is changed, and the probability of the occurrence of the noise frequency of the assembly is changed. Therefore, the probability of generating the assembly noise frequency can be reduced, and the core competitiveness of the product is improved.
Further, step S5 includes: step S51, calculating the frequency interval of the natural frequency among the noise braking parts; step S52, according to the corresponding relation between the frequency interval and the assembly damping, the natural frequency of each noise braking part is adjusted until the frequency interval reaches the frequency interval corresponding to the preset assembly damping. The predetermined assembly damping is an assembly damping (target damping value) that satisfies the demand, and may be the lowest value of the assembly damping.
And calculating the frequency interval of the natural frequency of each noise braking part, and adjusting the natural frequency of each noise braking part until the frequency interval reaches the frequency interval corresponding to the preset assembly damping according to the corresponding relation between the frequency interval and the assembly damping (when the natural frequencies of the two noise braking parts are close, noise is generated at a certain probability). Therefore, the natural frequency of the noise braking part is changed in a targeted mode, the frequency interval is changed, the assembly damping of the assembly noise frequency is changed into the preset assembly damping, the occurrence rate of the assembly noise frequency is greatly reduced, and the product has stronger competitiveness.
Further, the method for analyzing the automobile braking noise further comprises a step S6 of obtaining a corresponding relation between the frequency interval and the assembly damping, wherein the step S6 comprises the following steps: acquiring assembly damping under different frequency intervals; and establishing a corresponding relation between the frequency interval and the assembly damping based on the assembly damping and the corresponding frequency interval.
The assembly damping is obtained by adjusting the frequency interval between the noise braking parts for multiple times, so that the corresponding relation between the frequency interval and the assembly damping is established. A noise optimization model can be established based on the corresponding relation between the frequency interval and the assembly damping, and the model is gradually optimized through adjustment each time. Thereby, the correspondence between the frequency interval and the assembly damping can be further optimized.
Next, an automobile braking noise analysis device 1000 according to an embodiment of the present invention will be described.
As shown in fig. 2, an automobile braking noise analysis device 1000 according to an embodiment of the present invention includes: a statics calculation module 1001, a natural frequency calculation module 1002, a complex modality calculation module 1003, and a search module 1004.
The statics calculation module 1001 is used to obtain various assembly frequencies generated by the brake assembly under various operating conditions, including piston pressure or brake disc rotational speed. The natural frequency calculation module 1002 is used to obtain the natural frequency of each brake component in the brake assembly. The complex modal calculation module 1003 is configured to perform complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise condition and an assembly noise frequency that may cause noise, where the noise condition is a noise-generating condition, and the assembly noise frequency is a noise-generating frequency of the brake assembly under the noise condition. The search module 1004 is configured to perform an analysis based on each assembly noise to identify a plurality of noise braking components that contribute to each assembly noise frequency.
Further, the car braking noise analysis apparatus 1000 further includes a noise optimization module 1005. A noise optimization module 1005 for adjusting the natural frequency of each noise braking component to change the assembly damping.
Next, an electronic apparatus according to an embodiment of the present invention is explained.
The electronic device comprises a processor and a memory, wherein at least one instruction or at least one program is stored in the memory, and the at least one instruction or the at least one program is loaded and executed by the processor to realize the steps of the automobile braking noise analysis method provided by the embodiment of the method.
The memory may be used to store software programs and modules, and the processor may execute various functional applications and data processing by operating the software programs and modules stored in the memory. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system, application programs needed by functions and the like; the storage data area may store data created according to use of the apparatus, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory may also include a memory controller to provide the processor access to the memory.
Referring to the specification in conjunction with fig. 3, a block diagram of an electronic device 900 is shown, in accordance with one embodiment of the present invention. The electronic device 900 may include one or more processors 902, system control logic 908 coupled to at least one of the processors 902, system memory 904 coupled to the system control logic 908, non-volatile memory (NVM) 906 coupled to the system control logic 908, and a network interface 910 coupled to the system control logic 908.
The processor 902 may include one or more single-core or multi-core processors. The processor 902 may include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, baseband processors, etc.). In embodiments herein, the processor 902 may be configured to perform one or more of the various embodiments of the car braking noise analysis method.
In some embodiments, the system control logic 908 may include any suitable interface controllers to provide for any suitable interface to at least one of the processors 902 and/or any suitable device or component in communication with the system control logic 908.
In some embodiments, system control logic 908 may include one or more memory controllers to provide an interface to system memory 904. System memory 904 may be used to load and store data and/or instructions. Memory 904 of device 900 may include any suitable volatile memory in some embodiments, such as suitable Dynamic Random Access Memory (DRAM).
NVM/memory 906 may include one or more tangible, non-transitory computer-readable media for storing data and/or instructions. In some embodiments, NVM/memory 906 may include any suitable non-volatile memory such as flash memory and/or any suitable non-volatile storage device such as at least one of an HDD (Hard Disk Drive), CD (Compact Disc) Drive, DVD (Digital Versatile Disc) Drive.
The NVM/memory 906 may include a portion of a storage resource installed on a device of the device 900 or it may be accessible by, but not necessarily a part of, the device. For example, the NVM/storage 906 may be accessed over a network via the network interface 910.
In particular, system memory 904 and NVM/memory 906 may each include: a temporary copy and a permanent copy of instruction 920. The instructions 920 may include: when executed by at least one of the processors 902, causes the apparatus 900 to implement a vehicle braking noise analysis method. In some embodiments, the instructions 920, hardware, firmware, and/or software components thereof may additionally/alternatively be located in the system control logic 908, the network interface 910, and/or the processor 902.
The network interface 910 may further include any suitable hardware and/or firmware to provide a multiple-input multiple-output radio interface. For example, network interface 910 may be a network adapter, a wireless network adapter, a telephone modem, and/or a wireless modem.
In one embodiment, at least one of the processors 902 may be packaged together with logic for one or more controllers of the system control logic 908 to form a System In Package (SiP). In one embodiment, at least one of the processors 902 may be integrated on the same die with logic for one or more controllers of system control logic 908 to form a system on a chip (SoC).
The device 900 may further include: input/output (I/O) devices 912.I/O device 912 may include a user interface to enable a user to interact with device 900; the design of the peripheral component interface enables peripheral components to also interact with the device 900. In some embodiments, device 900 further includes sensors for determining at least one of environmental conditions and location information associated with device 900.
In some embodiments, the user interface may include, but is not limited to, a display (e.g., a liquid crystal display, a touch screen display, etc.), a speaker, a microphone, one or more cameras (e.g., still image cameras and/or video cameras), a flashlight (e.g., a light emitting diode flash), and a keyboard.
In some embodiments, the peripheral component interfaces may include, but are not limited to, a non-volatile memory port, an audio jack, and a power interface.
In some embodiments, the sensors may include, but are not limited to, a gyroscope sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of the network interface 910 or interact with the network interface 910 to communicate with components of a positioning network, such as Global Positioning System (GPS) satellites.
It is to be understood that the illustrated architecture of the embodiments of the invention does not constitute a specific limitation on the electronic device 900. In other embodiments of the invention, the electronic device 900 may include more or fewer components than illustrated, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Hereinafter, a computer-readable storage medium of an embodiment of the present invention is explained.
The computer readable storage medium may be configured in the electronic device to store at least one instruction or at least one program for implementing a data processing method, where the at least one instruction or the at least one program is loaded and executed by the processor to implement the steps of the method for analyzing braking noise of a vehicle provided in the foregoing embodiments of the method.
Optionally, in an embodiment of the present invention, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Next, a computer program product of an embodiment of the present invention is explained.
The computer program product comprises computer programs/instructions which are loaded and executed by a processor to implement the car braking noise analysis method provided in the various alternative embodiments described above, when the computer program product is run on an electronic device.
It should be noted that: the sequence of the above embodiments of the present invention is only for description, and does not represent the advantages or disadvantages of the embodiments. And that specific embodiments have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An automobile brake noise analysis method is characterized by comprising the following steps:
the method comprises the following steps of S1, acquiring various assembly frequencies generated by a brake assembly under various working conditions, wherein the working conditions comprise piston pressure or brake disc rotating speed;
s2, acquiring the natural frequency of each braking part in the brake assembly;
s3, carrying out complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise working condition and an assembly noise frequency which can cause noise, wherein the noise working condition is a working condition for generating noise, and the assembly noise frequency is a frequency for generating noise by the brake assembly under the noise working condition;
and S4, analyzing the assembly noise frequency under each noise working condition, and finding out a plurality of noise braking parts causing the assembly noise frequency.
2. The car braking noise analyzing method according to claim 1, wherein the step S4 includes:
s41, ranking the contribution quantity of the assembly noise frequency caused by each noise braking part under each noise working condition;
and S42, finding out a plurality of noise braking parts causing the noise frequency of the assembly according to the contribution ranking.
3. The car braking noise analyzing method according to claim 1, further comprising:
and S5, adjusting the natural frequency of each noise braking part to change the assembly damping, wherein the assembly damping is the probability of the occurrence of the assembly noise frequency.
4. The car brake noise analysis method according to claim 3, wherein the step S5 includes:
step S51, calculating the frequency interval of the natural frequency among the noise braking parts;
and S52, adjusting the natural frequency of each noise braking part according to the corresponding relation between the frequency interval and the assembly damping until the frequency interval reaches the frequency interval corresponding to the preset assembly damping.
5. The method of analyzing brake noise of a vehicle of claim 4, further comprising:
step S6, obtaining a correspondence between the frequency interval and the assembly damping, wherein step S6 includes:
acquiring assembly damping under different frequency intervals;
and establishing a corresponding relation between the frequency interval and the assembly damping based on the assembly damping and the corresponding frequency interval.
6. An automobile brake noise analysis device, comprising:
the statics calculation module is used for acquiring various assembly frequencies generated by the brake assembly under various working conditions, wherein the working conditions comprise piston pressure or brake disc rotating speed;
the natural frequency calculation module is used for acquiring the natural frequency of each braking part in the brake assembly;
the complex modal calculation module is used for carrying out complex modal analysis on the natural frequency and various assembly frequencies to obtain a noise working condition and an assembly noise frequency which can cause noise, wherein the noise working condition is a working condition for generating noise, and the assembly noise frequency is a frequency for generating noise by the brake assembly under the noise working condition;
and the searching module is used for analyzing based on each assembly noise and finding out a plurality of noise braking parts causing each assembly noise frequency.
7. The apparatus for analyzing braking noise of a vehicle according to claim 6, further comprising:
a noise optimization module for adjusting the natural frequency of each of the noise braking components to vary the assembly damping.
8. An electronic device, comprising a processor and a memory, wherein at least one instruction or at least one program is stored in the memory, and the at least one instruction or the at least one program is loaded by the processor and executed to implement the steps of the method according to any one of claims 1 to 5.
9. A computer-readable storage medium, wherein at least one instruction or at least one program is stored in the computer-readable storage medium, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the steps of the method for analyzing braking noise of a vehicle according to any one of claims 1 to 5.
10. A computer program product comprising computer programs/instructions, characterized in that the computer programs/instructions, when executed by a processor, implement the steps of the car brake noise analysis method according to any of the claims 1-5.
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| CN202211334241.0A CN115630510A (en) | 2022-10-28 | 2022-10-28 | Method, device, equipment, medium and program product for analyzing brake noise of automobile |
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| CN202211334241.0A CN115630510A (en) | 2022-10-28 | 2022-10-28 | Method, device, equipment, medium and program product for analyzing brake noise of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116007963A (en) * | 2023-03-24 | 2023-04-25 | 江西五十铃汽车有限公司 | Automobile brake noise evaluation method, system, storage medium and equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116007963A (en) * | 2023-03-24 | 2023-04-25 | 江西五十铃汽车有限公司 | Automobile brake noise evaluation method, system, storage medium and equipment |
| CN116007963B (en) * | 2023-03-24 | 2023-08-22 | 江西五十铃汽车有限公司 | Automobile brake noise evaluation method, system, storage medium and equipment |
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