Noise evaluation method and apparatus, and storage medium

Abstract

A noise evaluation method, comprising: acquiring a detection result of a vehicle ready state (201); in response to having received the detection result of the vehicle ready state that indicates that a vehicle has reached a ready state, collecting a first noise signal at a first preset position on the left side of a driver's seat, a second noise signal at a second preset position on the right side of a rear seat, and a third noise signal at a position having a preset distance from an electric drive assembly controller (202); identifying a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal and a third carrier frequency of the third noise signal (203); on the basis of the first carrier frequency, the second carrier frequency and the third carrier frequency, evaluating sound pressure levels corresponding to the first noise signal, the second noise signal and the third noise signal (204); and on the basis of the sound pressure levels corresponding to the first noise signal, the second noise signal and the third noise signal, acquiring a noise evaluation result (205). The comprehensive monitoring of vehicle interior noise is realized, thereby improving the accuracy of vehicle interior noise evaluation. Further provided are a noise evaluation apparatus, a computer program product and a storage medium.

Description

Noise assessment methods, devices, and storage media

[0001] This application claims priority to Chinese Patent Application No. 202510140616.7, filed on February 8, 2025, entitled "Method, Apparatus and Storage Medium for Noise Assessment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of vehicle control technology, and in particular to a method, apparatus and storage medium for noise assessment. Background Technology

[0003] During the driving process, electric vehicles generate carrier noise from their power system and electronic equipment, which affects the riding experience of the driver and passengers, and the noise radiation can also affect the physical health of the driver and passengers. Summary of the Invention

[0004] This application provides a noise assessment method, apparatus, and storage medium, which can be used to address the problem of carrier noise in electric vehicles affecting the riding experience and health of drivers and passengers. The technical solution is as follows:

[0005] On one hand, embodiments of this application provide a method for evaluating noise, the method comprising:

[0006] Obtain the detection result of the vehicle's readiness status, which is used to indicate whether the vehicle has reached the readiness status.

[0007] In response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state, a first noise signal at a first designated position on the left side of the driver's seat, a second noise signal at a second designated position on the right side of the rear seat, and a third noise signal at a certain distance near the electric drive assembly controller are collected.

[0008] Identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal;

[0009] The sound pressure level of the first noise signal, the sound pressure level of the second noise signal, and the sound pressure level of the third noise signal are evaluated based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0010] The noise assessment results are obtained based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment results are used to indicate whether the noise control inside the vehicle meets the standards.

[0011] On the other hand, a noise assessment apparatus is provided, the apparatus comprising:

[0012] The first acquisition module is used to acquire the detection result of the vehicle's ready state, and the detection result of the vehicle's ready state is used to indicate whether the vehicle has reached the ready state.

[0013] The acquisition module is used to acquire, in response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state, a first noise signal at a first designated position on the left side of the driver's seat, a second noise signal at a second designated position on the right side of the rear seat, and a third noise signal at a certain distance near the electric drive assembly controller.

[0014] The identification module is used to identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal;

[0015] The evaluation module is used to evaluate the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0016] The second acquisition module is used to acquire a noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment result is used to indicate whether the noise control inside the vehicle meets the standards.

[0017] On the other hand, a non-transitory computer-readable storage medium is also provided, characterized in that the computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement any of the noise evaluation methods described above.

[0018] On the other hand, a computer program product is also provided, the computer program product including computer instructions, which, when executed by a processor, implement the steps of any of the noise evaluation methods described above. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of an implementation environment provided in an embodiment of this application;

[0021] Figure 2 is a flowchart of a noise evaluation method provided in an embodiment of this application;

[0022] Figure 3 is a schematic diagram of the structure of a noise evaluation device provided in an embodiment of this application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0024] This application provides a noise assessment method. Please refer to Figure 1, which shows a schematic diagram of the implementation environment of the method provided in this application embodiment. The implementation environment may include: VCU (Vehicle Control Unit) 11, tire pressure monitoring system 12, BMS (Battery Management System) 13, ECU (Engine Control Unit) 14, first acoustic sensor 15, second acoustic sensor 16, third acoustic sensor 17, large screen on the vehicle center console 18, and vehicle audio system 19.

[0025] Optionally, the tire pressure monitoring system 12 is used to acquire tire pressure and send it to the VCU 11, which is used by the VCU 11 to determine whether the tire pressure is greater than a pressure threshold. The BMS 13 is used to acquire the SOC (State of Charge) of the power battery and send it to the VCU 11, which is used by the VCU 11 to determine whether the SOC of the power battery has reached a certain level, which is considered a preset level. The ECU 14 is used to acquire the engine start status and temperature and send them to the VCU 11, which is used by the VCU 11 to determine whether the engine has started and reached a specified temperature, which is considered a preset temperature.

[0026] For example, the first acoustic sensor 15 is used to collect a first noise signal and send it to the VCU 11; the second acoustic sensor 16 is used to collect a second noise signal and send it to the VCU 11; and the third acoustic sensor 17 is used to collect a third noise signal and send it to the VCU 11. The large screen 18 on the vehicle's center console is used to display the text message "In-vehicle noise reduction is needed" when it is necessary to reduce in-vehicle noise. The vehicle audio system 19 is used to broadcast the voice message "In-vehicle noise reduction is needed" when it is necessary to reduce in-vehicle noise.

[0027] Among them, VCU11, tire pressure monitoring system 12, BMS13, ECU14, first acoustic sensor 15, second acoustic sensor 16, third acoustic sensor 17, large screen of vehicle center console 18 and vehicle audio system 19 establish communication connection through wired or wireless network.

[0028] Based on the implementation environment shown in Figure 1 above, this application embodiment provides a noise evaluation method as shown in Figure 2. Taking the application of this method to VCU as an example, the method includes steps 201-205.

[0029] In step 201, the VCU acquires the detection result of the vehicle readiness status, which is used to indicate whether the vehicle has reached the readiness status.

[0030] In one possible implementation, the VCU acquires a detection result of the vehicle's readiness state, wherein the detection result of the vehicle's readiness state is used to indicate whether the vehicle has reached a readiness state. Optionally, the VCU acquires the detection result of the vehicle's readiness state, including: acquiring a first detection result, a second detection result, and a third detection result, wherein the first detection result is used to indicate whether the tire pressure is greater than a pressure threshold, the second detection result is used to indicate whether the state of charge (SOC) of the power battery has reached a preset level, and the third detection result is used to indicate whether the engine has started and reached a preset temperature; in response to acquiring the first detection result indicating that the tire pressure is greater than the pressure threshold, the second detection result indicating that the SOC of the power battery has reached a preset level, and the third detection result indicating that the engine has started and reached a preset temperature, the VCU acquires a vehicle readiness state detection result indicating that the vehicle has reached a readiness state.

[0031] Next, examples will be given to illustrate the methods for obtaining each test result.

[0032] (1) Obtain the first detection result

[0033] Optionally, the first detection result is used to indicate whether the tire pressure is greater than a pressure threshold. Obtaining the first detection result includes: the VCU acquiring the tire pressure through the tire pressure monitoring system, and then comparing the tire pressure with the pressure threshold; if the tire pressure is greater than the pressure threshold, the first detection result indicates that the tire pressure is greater than the pressure threshold; if the tire pressure is less than or equal to the pressure threshold, the first detection result indicates that the tire pressure is less than or equal to the pressure threshold.

[0034] (2) Obtain the second detection result

[0035] For example, the second detection result is used to indicate whether the SOC of the power battery has reached a preset level. Obtaining the second detection result includes: the VCU obtaining the SOC of the power battery through the BMS. Optionally, the remaining percentage of the power battery's charge can be used as the SOC of the power battery.

[0036] (3) Obtain the third detection result

[0037] In one possible implementation, the third detection result is used to indicate whether the engine has started and reached a preset temperature. Obtaining the third detection result includes: the VCU acquiring the engine's start status and temperature through the ECU; after confirming the engine is started, comparing the engine temperature with a preset temperature. If the engine has started and reached the preset temperature, the third detection result indicates that the engine has started and reached the preset temperature; if the engine has not started, or has started but has not reached the preset temperature, the third detection result indicates that the engine has not started or has not reached the preset temperature.

[0038] Optionally, after determining the first detection result, the second detection result, and the third detection result, if the first detection result indicating that the tire pressure is greater than the pressure threshold, the second detection result indicating that the SOC of the power battery has reached a preset level, and the third detection result indicating that the engine has started and reached a preset temperature are obtained, the VCU obtains the vehicle preparation state detection result indicating that the vehicle has reached the preparation state.

[0039] In step 202, in response to the detection result indicating that the vehicle has reached a ready state, the VCU collects a first noise signal at a first designated location on the left side of the driver's seat, a second noise signal at a second designated location on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller. The first designated location is considered a first preset location, and the second designated location is considered a second preset location.

[0040] For example, if a detection result indicating that the vehicle has reached a ready state is obtained, the VCU collects a first noise signal from a first preset position on the left side of the driver's seat, a second noise signal from a second preset position on the right side of the rear seat, and a third noise signal from a certain distance near the electric drive assembly controller. This includes: the VCU collecting the first noise signal through a first acoustic sensor installed at the first preset position on the left side of the driver's seat; collecting the second noise signal through a second acoustic sensor installed at the second preset position on the right side of the rear seat; and collecting the third noise signal through a third acoustic sensor installed at a preset distance near the electric drive assembly controller. The certain distance is considered to be the preset distance.

[0041] In one possible implementation, the preset distance, the first preset position, and the second preset position can be set empirically; for example, the preset distance can be 1 cm. The first, second, and third acoustic sensors can be microphones, with a frequency range of 20-20000 Hz and a resolution of 4 Hz.

[0042] In step 203, the VCU identifies the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal.

[0043] Optionally, after acquiring the first noise signal, the second noise signal, and the third noise signal, the VCU identifies the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal, including: acquiring a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; identifying the first carrier frequency based on the first chromatogram, identifying the second carrier frequency based on the second chromatogram, and identifying the third carrier frequency based on the third chromatogram. The chromatogram is used to display the distribution of noise in different frequency ranges. The frequency range of the noise is divided into multiple intervals in the graph, each interval corresponding to one or more frequency values, and the noise intensity in that frequency interval is represented by the color intensity.

[0044] For example, after acquiring the first noise signal, the second noise signal, and the third noise signal, obtaining the first chromatogram corresponding to the first noise signal, the second chromatogram corresponding to the second noise signal, and the third chromatogram corresponding to the third noise signal includes: preprocessing the first noise signal, the second noise signal, and the third noise signal; performing spectral analysis on the preprocessed first noise signal, the second noise signal, and the third noise signal to convert the time-domain signal into a frequency-domain signal; generating a data matrix based on the frequency-domain signal; and then generating the first chromatogram, the second chromatogram, and the third chromatogram based on the data matrix corresponding to the first noise signal using a visualization tool.

[0045] In one possible implementation, after generating a first chromatogram, a second chromatogram, and a third chromatogram, the first carrier frequency is identified based on the first chromatogram, the second carrier frequency is identified based on the second chromatogram, and the third carrier frequency is identified based on the third chromatogram. This includes: selecting the center frequency in the first chromatogram, then searching for the region with the highest sound pressure level to both sides based on the center frequency, and determining the first carrier frequency based on the frequency range corresponding to the region with the highest sound pressure level; selecting the center frequency in the second chromatogram, then searching for the region with the highest sound pressure level to both sides based on the center frequency, and determining the second carrier frequency based on the frequency range corresponding to the region with the highest sound pressure level; selecting the center frequency in the third chromatogram, then searching for the region with the highest sound pressure level to both sides based on the center frequency, and determining the third carrier frequency based on the frequency range corresponding to the region with the highest sound pressure level.

[0046] In step 204, the VCU evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0047] For example, after determining the first carrier frequency, the second carrier frequency, and the third carrier frequency, the VCU evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency, including: obtaining a first noise curve in a first chromatogram based on the first carrier frequency, obtaining a second noise curve in a second chromatogram based on the second carrier frequency, and obtaining a third noise curve in a third chromatogram based on the third carrier frequency; evaluating the sound pressure level corresponding to the first noise signal based on the first noise curve, evaluating the sound pressure level corresponding to the second noise signal based on the second noise curve, and evaluating the sound pressure level corresponding to the third noise signal based on the third noise curve.

[0048] Optionally, obtaining the first noise curve in the first chromatogram based on the first carrier frequency includes: processing the first chromatogram using a programming language such as Python to extract noise data; visualizing the extracted data using MATLAB to obtain the first noise curve; and then calculating the maximum sound pressure level in the region corresponding to the first carrier frequency in the first noise curve, and using the maximum sound pressure level in the region corresponding to the first carrier frequency as the sound pressure level corresponding to the first noise curve.

[0049] In one possible implementation, obtaining the second noise curve in the second chromatogram based on the second carrier frequency includes: processing the second chromatogram with Python to extract noise data; visualizing the extracted data using MATLAB to obtain the second noise curve; and then calculating the maximum sound pressure level in the region corresponding to the second carrier frequency in the second noise curve, and using the maximum sound pressure level in the region corresponding to the second carrier frequency as the sound pressure level corresponding to the second noise curve.

[0050] For example, obtaining the third noise curve in the third chromatogram based on the third carrier frequency includes: processing the third chromatogram with Python to extract noise data; visualizing the extracted data with MATLAB to obtain the third noise curve; and then calculating the maximum sound pressure level in the region corresponding to the third carrier frequency in the third noise curve, and taking the maximum sound pressure level in the region corresponding to the third carrier frequency as the sound pressure level corresponding to the third noise curve.

[0051] In step 205, the VCU obtains noise assessment results based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment results are used to indicate whether the noise control inside the vehicle meets the standards.

[0052] In one possible implementation, after evaluating the sound pressure level corresponding to the first noise signal, the second noise signal, and the third noise signal, the VCU obtains the noise evaluation result based on the sound pressure level corresponding to the first noise signal, the second noise signal, and the third noise signal. The noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standards.

[0053] For example, obtaining a noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal includes: in response to at least one of the following: the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, the sound pressure level corresponding to the second noise signal is greater than a second sound pressure level threshold, or the sound pressure level corresponding to the third noise signal is greater than a third sound pressure level threshold, obtaining a noise assessment result indicating that the noise control inside the vehicle is not up to standard.

[0054] Optionally, after evaluating the sound pressure level corresponding to the first noise signal, the second noise signal, and the third noise signal, the sound pressure level corresponding to the first noise signal is compared with a first sound pressure level threshold, the sound pressure level corresponding to the second noise signal is compared with a second sound pressure level threshold, and the sound pressure level corresponding to the third noise signal is compared with a third sound pressure level threshold. If at least one of the following conditions is met: the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold, the sound pressure level corresponding to the second noise signal is greater than the second sound pressure level threshold, or the sound pressure level corresponding to the third noise signal is greater than the third sound pressure level threshold, the VCU obtains a noise evaluation result indicating that the noise control inside the vehicle has not met the standards.

[0055] For example, if the sound pressure level corresponding to the first noise signal is less than or equal to a first sound pressure level threshold, and the conditions for the sound pressure level corresponding to the first noise signal to be less than or equal to the first sound pressure level threshold are met, the VCU obtains a noise assessment result indicating that the noise control inside the vehicle meets the standards. Optionally, the first sound pressure level threshold, the second sound pressure level threshold, and the third sound pressure level threshold can all be set based on experience.

[0056] In one possible implementation, after the VCU obtains a noise assessment result indicating that the noise control inside the vehicle has not met the standards, in response to obtaining the noise assessment result indicating that the noise control inside the vehicle has not met the standards, the VCU issues a prompt message indicating that the noise inside the vehicle needs to be reduced. Optionally, the way to issue the prompt message indicating that the noise inside the vehicle needs to be reduced includes, but is not limited to: the VCU displaying the text message "Need to reduce interior noise" on the large screen of the vehicle's center console, or the VCU broadcasting the voice message "Need to reduce interior noise" through the vehicle's audio system.

[0057] This embodiment of the application, after the vehicle reaches the ready state, collects a first noise signal from a first preset position on the left side of the driver's seat, a second noise signal from a second preset position on the right side of the rear seat, and a third noise signal from a preset distance near the electric drive assembly controller. It then identifies the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal. Based on these frequencies, it evaluates the sound pressure level (SPL) of the first, second, and third noise signals. The resulting noise assessment is used to determine whether the noise control inside the vehicle meets the standards, achieving comprehensive monitoring of the vehicle's interior noise, improving the accuracy of interior noise assessment, and preventing excessive carrier noise from affecting the driver and passengers.

[0058] Referring to Figure 3, an embodiment of this application provides a noise evaluation device, which includes:

[0059] The first acquisition module 301 is used to acquire the detection result of the vehicle's ready state, which is used to indicate whether the vehicle has reached the ready state.

[0060] The acquisition module 302 is used to acquire a first noise signal at a first preset position on the left side of the driver's seat, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller in response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state.

[0061] The identification module 303 is used to identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal;

[0062] The evaluation module 304 is used to evaluate the sound pressure level of the first noise signal, the sound pressure level of the second noise signal, and the sound pressure level of the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0063] The second acquisition module 305 is used to acquire noise assessment results based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment results are used to indicate whether the noise control inside the vehicle meets the standards.

[0064] In one possible implementation, the identification module 303 is used to acquire a first chromatogram corresponding to a first noise signal, a second chromatogram corresponding to a second noise signal, and a third chromatogram corresponding to a third noise signal; identify a first carrier frequency based on the first chromatogram, identify a second carrier frequency based on the second chromatogram, and identify a third carrier frequency based on the third chromatogram.

[0065] In one possible implementation, the evaluation module 304 is used to obtain a first noise curve in a first chromatogram based on a first carrier frequency, a second noise curve in a second chromatogram based on a second carrier frequency, and a third noise curve in a third chromatogram based on a third carrier frequency; evaluate the sound pressure level corresponding to the first noise signal based on the first noise curve, evaluate the sound pressure level corresponding to the second noise signal based on the second noise curve, and evaluate the sound pressure level corresponding to the third noise signal based on the third noise curve.

[0066] In one possible implementation, the second acquisition module 305 is configured to acquire a noise assessment result indicating that the noise control inside the vehicle is not up to standard in response to at least one of the following: the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold, the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold, or the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold.

[0067] In one possible implementation, the second acquisition module 305 is further configured to issue a prompt message indicating that the noise control inside the vehicle is not up to standard in response to acquiring a noise assessment result indicating that the noise control inside the vehicle is not up to standard.

[0068] In one possible implementation, the first acquisition module 301 is used to acquire a first detection result, a second detection result, and a third detection result. The first detection result is used to indicate whether the tire pressure is greater than a pressure threshold, the second detection result is used to indicate whether the state of charge (SOC) of the power battery has reached a preset level, and the third detection result is used to indicate whether the engine has started and reached a preset temperature. In response to acquiring the first detection result indicating that the tire pressure is greater than the pressure threshold, the second detection result indicating that the SOC of the power battery has reached a preset level, and the third detection result indicating that the engine has started and reached a preset temperature, a vehicle readiness state detection result indicating that the vehicle has reached a ready state is acquired.

[0069] This device, after the vehicle reaches a ready state, collects a first noise signal from a first preset position on the left side of the driver's seat, a second noise signal from a second preset position on the right side of the rear seat, and a third noise signal from a preset distance near the electric drive assembly controller. It identifies the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal. Then, based on the first, second, and third carrier frequencies, it evaluates the sound pressure level (SPL) of the first, second, and third noise signals. Based on these SPLs, it obtains a noise assessment result to determine whether the noise control inside the vehicle meets standards, achieving comprehensive monitoring of vehicle interior noise, improving the accuracy of vehicle interior noise assessment, and preventing excessive carrier noise from affecting the driver and passengers.

[0070] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0071] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one computer program that is loaded and executed by a processor of a computer device to enable the computer to implement any of the above-described noise assessment methods.

[0072] In one possible implementation, the aforementioned computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.

[0073] In an exemplary embodiment, a computer program product or computer program is also provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform any of the noise evaluation methods described above.

[0074] It should be noted that all information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in this application have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the detection results of the vehicle readiness status, the first noise signal, the second noise signal, the third noise signal, and the noise assessment results involved in this application were all obtained with full authorization.

[0075] It should be understood that "multiple" as used in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0076] It should be noted that the terms "first," "second," etc. (if applicable) in the specification and claims 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 of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0077] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

[0078] This application provides a method for evaluating noise, characterized in that the method includes:

[0079] Obtain the detection result of the vehicle's readiness status, which is used to indicate whether the vehicle has reached the readiness status.

[0080] In response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state, a first noise signal at a first preset position on the left side of the driver's seat, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller are collected.

[0081] Identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal;

[0082] The sound pressure level of the first noise signal, the sound pressure level of the second noise signal, and the sound pressure level of the third noise signal are evaluated based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0083] The noise assessment results are obtained based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment results are used to indicate whether the noise control inside the vehicle meets the standards.

[0084] Optionally, identifying the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal includes:

[0085] Obtain the first chromatogram corresponding to the first noise signal, the second chromatogram corresponding to the second noise signal, and the third chromatogram corresponding to the third noise signal;

[0086] The first carrier frequency is identified based on the first chromatogram, the second carrier frequency is identified based on the second chromatogram, and the third carrier frequency is identified based on the third chromatogram.

[0087] Optionally, the step of evaluating the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency includes:

[0088] A first noise curve is obtained in the first chromatogram based on the first carrier frequency, a second noise curve is obtained in the second chromatogram based on the second carrier frequency, and a third noise curve is obtained in the third chromatogram based on the third carrier frequency.

[0089] The sound pressure level of the first noise signal is evaluated based on the first noise curve, the sound pressure level of the second noise signal is evaluated based on the second noise curve, and the sound pressure level of the third noise signal is evaluated based on the third noise curve.

[0090] Optionally, obtaining the noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal includes:

[0091] In response to at least one of the following: the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, or the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, a noise assessment result indicating that the noise control inside the vehicle is not up to standard is obtained.

[0092] Optionally, after obtaining the noise assessment result indicating that the noise control inside the vehicle has not met the standards, the method further includes:

[0093] In response to the noise assessment result indicating that the noise control inside the vehicle is not up to standard, a prompt message is issued indicating that the noise inside the vehicle needs to be reduced.

[0094] Optionally, obtaining the detection result of the vehicle's readiness status includes:

[0095] The system acquires a first detection result, a second detection result, and a third detection result. The first detection result indicates whether the tire pressure is greater than a pressure threshold. The second detection result indicates whether the state of charge (SOC) of the power battery has reached a preset level. The third detection result indicates whether the engine has started and reached a preset temperature.

[0096] In response to a first detection result indicating that the tire pressure is greater than the pressure threshold, a second detection result indicating that the SOC of the power battery has reached the preset level, and a third detection result indicating that the engine has started and reached the preset temperature, a vehicle preparation state detection result indicating that the vehicle has reached the preparation state is obtained.

[0097] On the other hand, a noise assessment device is provided, characterized in that the device comprises:

[0098] The first acquisition module is used to acquire the detection result of the vehicle's ready state, and the detection result of the vehicle's ready state is used to indicate whether the vehicle has reached the ready state.

[0099] The acquisition module is used to acquire, in response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state, a first noise signal at a first preset position on the left side of the driver's seat, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller.

[0100] The identification module is used to identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal;

[0101] The evaluation module is used to evaluate the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0102] The second acquisition module is used to acquire a noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment result is used to indicate whether the noise control inside the vehicle meets the standards.

[0103] Optionally, the identification module is configured to acquire a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; identify the first carrier frequency based on the first chromatogram, identify the second carrier frequency based on the second chromatogram, and identify the third carrier frequency based on the third chromatogram.

[0104] On the other hand, a computer program product is provided, the computer program product including computer instructions that, when executed by a processor, implement the noise evaluation method as described in any one of claims 1 to 6.

[0105] On the other hand, a non-transitory computer-readable storage medium is provided, characterized in that the computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the noise evaluation method as described in any one of claims 1 to 6.

Claims

1. A method for evaluating noise, wherein, The method includes: Obtain the detection result of the vehicle's readiness status, which is used to indicate whether the vehicle has reached the readiness status. In response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state, a first noise signal at a first designated position on the left side of the driver's seat, a second noise signal at a second designated position on the right side of the rear seat, and a third noise signal at a certain distance near the electric drive assembly controller are collected. Identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal; The sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal are evaluated based on the first carrier frequency, the second carrier frequency, and the third carrier frequency. The noise assessment results are obtained based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment results are used to indicate whether the noise control inside the vehicle meets the standards.

2. The method according to claim 1, wherein, The step of identifying the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal includes: Obtain the first chromatogram corresponding to the first noise signal, the second chromatogram corresponding to the second noise signal, and the third chromatogram corresponding to the third noise signal; The first carrier frequency is identified based on the first chromatogram, the second carrier frequency is identified based on the second chromatogram, and the third carrier frequency is identified based on the third chromatogram.

3. The method according to claim 2, wherein, The step of evaluating the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency includes: A first noise curve is obtained in the first chromatogram based on the first carrier frequency, a second noise curve is obtained in the second chromatogram based on the second carrier frequency, and a third noise curve is obtained in the third chromatogram based on the third carrier frequency. The sound pressure level of the first noise signal is evaluated based on the first noise curve, the sound pressure level of the second noise signal is evaluated based on the second noise curve, and the sound pressure level of the third noise signal is evaluated based on the third noise curve.

4. The method according to claim 1, wherein, The process of obtaining noise assessment results based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal includes: In response to at least one of the following: the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, or the sound pressure level corresponding to the first noise signal is greater than a first sound pressure level threshold, a noise assessment result indicating that the noise control inside the vehicle is not up to standard is obtained.

5. The method according to claim 4, wherein, After obtaining the noise assessment result indicating that the noise control inside the vehicle has not met the standards, the process also includes: In response to the noise assessment result indicating that the noise control inside the vehicle is not up to standard, a prompt message is issued indicating that the noise inside the vehicle needs to be reduced.

6. The method according to claim 1, wherein, The detection results for obtaining the vehicle's readiness status include: The system obtains a first detection result, a second detection result, and a third detection result. The first detection result is used to indicate whether the tire pressure is greater than the tire pressure threshold. The second detection result is used to indicate whether the state of charge (SOC) of the power battery has reached a certain level. The third detection result is used to indicate whether the engine has started and reached a specified temperature. In response to a first detection result indicating that the tire pressure is greater than the pressure threshold, a second detection result indicating that the SOC of the power battery has reached the specified level, and a third detection result indicating that the engine has started and reached the specified temperature, a vehicle readiness state detection result indicating that the vehicle has reached the readiness state is obtained.

7. A noise assessment device, wherein, The device includes: The first acquisition module is used to acquire the detection result of the vehicle's ready state, and the detection result of the vehicle's ready state is used to indicate whether the vehicle has reached the ready state. The acquisition module is used to acquire, in response to the detection result of the vehicle preparation state indicating that the vehicle has reached the preparation state, a first noise signal at a first designated position on the left side of the driver's seat, a second noise signal at a second designated position on the right side of the rear seat, and a third noise signal at a certain distance near the electric drive assembly controller. The identification module is used to identify the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal; The evaluation module is used to evaluate the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency. The second acquisition module is used to acquire a noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise assessment result is used to indicate whether the noise control inside the vehicle meets the standards.

8. The apparatus according to claim 7, wherein, The identification module is configured to acquire a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; identify the first carrier frequency based on the first chromatogram, identify the second carrier frequency based on the second chromatogram, and identify the third carrier frequency based on the third chromatogram.

9. The apparatus according to claim 8, wherein, The evaluation module is configured to obtain a first noise curve in the first chromatogram based on the first carrier frequency, a second noise curve in the second chromatogram based on the second carrier frequency, and a third noise curve in the third chromatogram based on the third carrier frequency; evaluate the sound pressure level corresponding to the first noise signal based on the first noise curve, evaluate the sound pressure level corresponding to the second noise signal based on the second noise curve, and evaluate the sound pressure level corresponding to the third noise signal based on the third noise curve.

10. The apparatus according to claim 7, wherein, The second acquisition module is used to acquire a noise assessment result indicating that the noise control inside the vehicle is not up to standard in response to at least one of the following: the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold, the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold, or the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold.

11. The apparatus according to claim 10, wherein, The second acquisition module is further configured to, in response to acquiring the noise assessment result indicating that the noise control inside the vehicle is not up to standard, issue a prompt message indicating that the noise inside the vehicle needs to be reduced.

12. The apparatus according to claim 7, wherein, The first acquisition module is used to acquire a first detection result, a second detection result, and a third detection result. The first detection result is used to indicate whether the tire pressure is greater than a pressure threshold. The second detection result is used to indicate whether the state of charge (SOC) of the power battery has reached a certain level. The third detection result is used to indicate whether the engine has started and reached a specified temperature. In response to acquiring the first detection result indicating that the tire pressure is greater than the pressure threshold, the second detection result indicating that the SOC of the power battery has reached the specified level, and the third detection result indicating that the engine has started and reached the specified temperature, a vehicle preparation state detection result indicating that the vehicle has reached the preparation state is acquired.

13. A computer program product comprising computer instructions that, when executed by a processor, implement the noise evaluation method as described in any one of claims 1 to 6.

14. A non-transitory computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the noise assessment method as described in any one of claims 1 to 6.

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