Vehicle Vibration Analysis Method, Device, Medium and Equipment

Abstract

The present disclosure relates to a vehicle vibration analysis method, device, medium and equipment, belonging to the field of vehicles, which can effectively analyze vehicle vibration and improve vehicle comfort. A vehicle vibration analysis method includes: using a vehicle simulation analysis model to calculate the simulated vibration transfer function from each excitation point on the vehicle to the vibration response point; obtaining the actual vehicle abnormal vibration test results of the prototype vehicle corresponding to the vehicle; if the actual vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles, determining the simulated vibration transfer function as the vibration transfer function for subsequent vehicle vibration analysis; and performing vehicle vibration analysis on the vehicle by using the vibration transfer function.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicles, and in particular, to a method, device, medium, and equipment for analyzing the vibration of a whole vehicle. Background Art

[0002] In related technologies, the research on the vibration of a whole vehicle mainly focuses on the problems of idle jitter and steering wheel swing during driving. The former is mainly solved through on-vehicle tests and solution verifications, while the latter only uses local modeling and simulation of the suspension and driving systems. However, these methods cannot evaluate the severity of the whole vehicle vibration problem, and for forward development without an actual vehicle, these methods cannot guarantee the comfort of the whole vehicle. Summary of the Invention

[0003] The purpose of the present disclosure is to provide a method, device, medium, and equipment for analyzing the vibration of a whole vehicle, which can effectively analyze the vibration of the whole vehicle and improve the comfort of the whole vehicle.

[0004] To achieve the above purpose, the present disclosure provides a method for analyzing the vibration of a whole vehicle, including: calculating the simulation vibration transfer function from each excitation point on the whole vehicle to the vibration response point by using the simulation analysis model of the whole vehicle; obtaining the on-vehicle abnormal vibration test results of the sample vehicle corresponding to the whole vehicle; if the on-vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all sample vehicles, determining the simulation vibration transfer function as the vibration transfer function for subsequent whole vehicle vibration analysis; and performing whole vehicle vibration analysis on the whole vehicle by using the vibration transfer function.

[0005] Optionally, the method includes: if the on-vehicle abnormal vibration test results indicate that there is a sample vehicle with the abnormal vibration phenomenon, then: obtaining the first excitation data of each excitation point at the moment when the abnormal vibration phenomenon occurs; obtaining the on-vehicle abnormal vibration test results after the components at the excitation points of the sample vehicle are replaced until no abnormal vibration phenomenon occurs in all sample vehicles; obtaining the second excitation data of each excitation point at the moment when no abnormal vibration phenomenon occurs; determining the reference standard for whole vehicle vibration analysis based on the second excitation data and the simulation vibration transfer function; and determining the vibration transfer function used for subsequent whole vehicle vibration analysis based on the reference standard for whole vehicle vibration analysis and the first excitation data.

[0006] Optionally, the reference standard for whole vehicle vibration analysis is equal to the second excitation data multiplied by the simulation vibration transfer function.

[0007] Optionally, the method includes: obtaining a static test result of the prototype vehicle, where positions of the excitation points and the vibration response points when the prototype vehicle is subjected to the static test are the same as those of the excitation points and the vibration response points when the whole vehicle is subjected to simulation analysis; comparing a peak frequency of the static test result with a peak frequency of the simulation analysis result; and if the comparison result indicates that an error between the peak frequency of the static test result and the peak frequency of the simulation analysis result is outside a preset range, correcting the whole vehicle simulation analysis model.

[0008] Optionally, the excitation points include at least one of a leaf spring hanger, a tire, and a propeller shaft suspension.

[0009] Optionally, the vibration response points include at least one of a seat rail, a roof panel, and a steering wheel.

[0010] The present disclosure further provides a whole vehicle vibration analysis device, including: a calculation module configured to calculate a simulation vibration transfer function from each excitation point to a vibration response point on the whole vehicle by using a simulation analysis model of the whole vehicle; a first acquisition module configured to obtain a real vehicle abnormal vibration test result of the prototype vehicle corresponding to the whole vehicle; a first determination module configured to, if the real vehicle abnormal vibration test result indicates that no abnormal vibration phenomenon occurs in all prototype vehicles, determine the simulation vibration transfer function as a vibration transfer function for subsequent whole vehicle vibration analysis; and a vibration analysis module configured to perform whole vehicle vibration analysis on the whole vehicle by using the vibration transfer function.

[0011] Optionally, the device further includes a second acquisition module and a second determination module, where: the second acquisition module is configured to, if the real vehicle abnormal vibration test result indicates that an abnormal vibration phenomenon occurs in a prototype vehicle, obtain first excitation data of each excitation point at a moment when the abnormal vibration phenomenon occurs; the first acquisition module is further configured to obtain a real vehicle abnormal vibration test result of the prototype vehicle after components at the excitation points are replaced until no abnormal vibration phenomenon occurs in all prototype vehicles; the second acquisition module is further configured to obtain second excitation data of each excitation point at a moment when no abnormal vibration phenomenon occurs in all prototype vehicles; the second determination module is configured to determine a reference standard for whole vehicle vibration analysis based on the second excitation data and the simulation vibration transfer function; and the first determination module is further configured to determine a vibration transfer function used for subsequent whole vehicle vibration analysis based on the reference standard for whole vehicle vibration analysis and the first excitation data.

[0012] Optionally, the device includes: a third acquisition module configured to acquire the static test results of the prototype vehicle, wherein the positions of the excitation points and the vibration response points when the prototype vehicle is subjected to static testing are the same as the positions of the excitation points and the vibration response points when the entire vehicle is subjected to simulation analysis; a comparison module configured to compare the peak frequency of the static test results with the peak frequency of the simulation analysis results; and a correction module configured to correct the entire vehicle simulation analysis model if the comparison result indicates that the error between the peak frequency of the static test results and the peak frequency of the simulation analysis results is outside a preset range.

[0013] The present disclosure also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the method according to an embodiment of the present disclosure.

[0014] The present disclosure also provides an electronic device, including: a memory having stored thereon a computer program; and a processor configured to execute the computer program in the memory to implement the steps of the method according to an embodiment of the present disclosure.

[0015] By adopting the above technical solution, since the simulation vibration transfer function from each excitation point to the vibration response point on the entire vehicle can be calculated using the entire vehicle simulation analysis model, and the real vehicle abnormal vibration test results of the prototype vehicle corresponding to the entire vehicle can be obtained, when the real vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles, the simulation vibration transfer function is determined as the vibration transfer function for subsequent entire vehicle vibration analysis, and the entire vehicle vibration analysis is performed on the entire vehicle using the vibration transfer function. In this way, a reasonable entire vehicle vibration transfer function for analyzing the entire vehicle vibration can be obtained by combining simulation analysis and on-site testing, that is, an entire vehicle-level vibration transfer function can be obtained. Using this entire vehicle-level vibration transfer function can evaluate the severity of the entire vehicle vibration problem, so that it can be used to avoid vibration problems in forward development and solve actual entire vehicle vibration problems (such as cab jitter, steering wheel oscillation, and cab tremor, etc.), so as to achieve the purpose of comprehensively improving and ensuring the comfort of the entire vehicle.

[0016] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0018] Figure 1 is a flowchart of a method for analyzing the vibration of an entire vehicle according to an embodiment of the present disclosure.

[0019] Figure 2 It is another flowchart of the vehicle vibration analysis method according to an embodiment of the present disclosure.

[0020] Figure 3 It is a flowchart for correcting the vehicle simulation analysis model.

[0021] Figure 4 It is a schematic block diagram of a vehicle vibration analysis device according to an embodiment of the present disclosure.

[0022] Figure 5 It is another schematic block diagram of a vehicle vibration analysis device according to an embodiment of the present disclosure.

[0023] Figure 6 It is a block diagram of an electronic device shown according to an exemplary embodiment. Detailed implementation manners

[0024] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0025] Figure 1 It is a flowchart of the vehicle vibration analysis method according to an embodiment of the present disclosure. As Figure 1 shown, the vehicle vibration analysis method includes the following steps S11 to S14.

[0026] In step S11, using the simulation analysis model of the vehicle, calculate the simulation vibration transfer function from each excitation point on the vehicle to the vibration response point.

[0027] In some embodiments, if it is desired to perform vehicle vibration analysis on a certain vehicle model, the vehicle simulation analysis model of this vehicle model can be established first. For example, it can be a vehicle finite element simulation analysis model, or a vehicle CAD simulation analysis model, etc. The present disclosure does not limit the vehicle simulation analysis model, as long as it can be used to simulate the vibration characteristics of the vehicle. After establishing the vehicle simulation analysis model, the established vehicle simulation analysis model can be used to calculate the simulation vibration transfer function from each excitation point on the vehicle to the vibration response point. The excitation point refers to the component that is likely to cause vehicle vibration, such as the leaf spring hanger, tire, propeller shaft hanger, etc. In some embodiments, the excitation point can be selected as at least one of the leaf spring hanger, tire, and propeller shaft hanger. The vibration response point refers to the component that is likely to make people feel the vehicle vibration, such as the seat rail, roof, steering wheel, etc. Taking the steering wheel as an example, when the vehicle vibrates, the user is likely to feel the steering wheel swing. In some embodiments, the vibration response point can be selected as at least one of the seat rail, roof, and steering wheel.

[0028] Since there is the following relationship between the excitation and the response: excitation * vibration transfer function = vibration response, after obtaining the vehicle vibration excitation and vibration response using the vehicle simulation analysis model, the simulation vibration transfer function can be obtained using the above relationship. The simulation vibration transfer function here refers to the vibration transfer function obtained through vehicle simulation analysis.

[0029] In step S12, obtain the on-vehicle abnormal vibration test results of the prototype vehicle corresponding to the whole vehicle.

[0030] In some embodiments, N prototype vehicles of the same vehicle model can be prepared, and the larger N is, the better. The purpose is to ensure the sampling value of data credibility, and the specific value of N can be adjusted according to the actual situation. These N prototype vehicles need to ensure the consistency of vehicle components, especially the tires and drive shafts need to meet the current company standards. The vehicle model of the prototype vehicle here needs to be the same as the vehicle model for which the vehicle simulation analysis is performed in step S11, so as to ensure the credibility of the vibration transfer function finally obtained by the vehicle vibration analysis method according to the embodiments of the present disclosure.

[0031] After the prototype vehicles are prepared, on-vehicle dynamic tests need to be performed on these N prototype vehicles. Here, the on-vehicle dynamic test refers to the actual driving test. Since the vibration degree of the whole vehicle is different at different vehicle speeds, the prototype vehicles in different vehicle speed ranges can be dynamically tested. For example, the N prototype vehicles can be dynamically tested in the vehicle speed range from V1 (such as 50 km / h) to V2 (such as 90 km / h), and the N prototype vehicles can be dynamically tested in the vehicle speed range from V2 (such as 90 km / h) to V3 (such as 120 km / h). The range of each vehicle speed range and the total number of vehicle speed ranges can be set according to the actual situation, and the present disclosure does not limit this. By dynamically testing the whole vehicle in different vehicle speed ranges, the vehicle vibration analysis method according to the embodiments of the present disclosure can finally obtain the vibration transfer functions for multiple vehicle speed ranges.

[0032] After performing on-vehicle dynamic tests on the N prototype vehicles, the on-vehicle abnormal vibration test results of these N prototype vehicles can be obtained.

[0033] In addition, step S11 and step S12 can be executed simultaneously or sequentially, and the execution order of the sequence is not limited. It can be to execute step S11 first and then step S12, or to execute step S12 first and then step S11.

[0034] In step S13, if the on-vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles, then determine the simulation vibration transfer function as the vibration transfer function for subsequent vehicle vibration analysis.

[0035] The abnormal vibration phenomenon refers to the vibration intensity of the whole vehicle exceeding the preset vibration intensity threshold. The manifestation forms of the whole vehicle vibration can be at least one of cab bouncing, steering wheel wobbling, cab tremor, etc.

[0036] If the real vehicle abnormal vibration test results of N sample vehicles all show that no abnormal vibration phenomenon occurs, it indicates that the whole vehicle vibration does not exceed the preset vibration intensity threshold and the comfort of the whole vehicle meets the requirements. In this case, the simulation vibration transfer function can be directly determined as the vibration transfer function for subsequent whole vehicle vibration analysis. That is to say, this simulation vibration transfer function can be embedded in the forward development of the whole vehicle, so that the whole vehicle transfer function analysis of the new model can be carried out in advance. Based on the whole vehicle transfer function analysis, the performance of the whole vehicle can be predicted and the structure can be optimized, reducing unnecessary waste in the rectification process after development; or, this simulation vibration transfer function can also be used to analyze the vibration intensity of the whole vehicle to solve different types of driving vibration problems of the real vehicle.

[0037] In step S14, the whole vehicle vibration analysis is performed on the whole vehicle by using the vibration transfer function.

[0038] By adopting the above technical solution, since the simulation vibration transfer function from each excitation point on the whole vehicle to the vibration response point can be calculated by using the whole vehicle simulation analysis model, and the real vehicle abnormal vibration test results of the sample vehicle corresponding to the whole vehicle are obtained, when the real vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all sample vehicles, the simulation vibration transfer function is determined as the vibration transfer function for subsequent whole vehicle vibration analysis and the whole vehicle vibration analysis is performed on the whole vehicle by using the vibration transfer function. In this way, a reasonable whole vehicle vibration transfer function for analyzing the whole vehicle vibration can be obtained by combining simulation analysis and on-site testing, that is, a whole vehicle level vibration transfer function can be obtained. Using this whole vehicle level vibration transfer function can evaluate the severity of the whole vehicle vibration problem, so that it can be used to avoid vibration problems in forward development and solve actual whole vehicle vibration problems (such as cab bouncing, steering wheel wobbling and cab tremor, etc.), so as to achieve the purpose of comprehensively improving and ensuring the comfort of the whole vehicle.

[0039] Figure 2 It is another flowchart of the whole vehicle vibration analysis method according to an embodiment of the present disclosure.

[0040] As Figure 2 shown, in step S21, the simulation vibration transfer function from each excitation point on the whole vehicle to the vibration response point is calculated by using the simulation analysis model of the whole vehicle.

[0041] In step S22, the real vehicle abnormal vibration test results of the sample vehicle corresponding to the whole vehicle are obtained.

[0042] In step S23, it is determined whether the real vehicle abnormal vibration test result indicates that there is an abnormal vibration phenomenon in the prototype vehicle. If there is no abnormal vibration phenomenon in the prototype vehicle, it proceeds to step S24. If there is an abnormal vibration phenomenon in the prototype vehicle, it proceeds to step S25. It should be noted that step S21 only needs to be completed before step S24, and is not limited to being executed before step S22. For example, step S21 can be located between step S22 and step S23, or can be executed simultaneously with step S22, or can be located between step S23 and step S24, and so on.

[0043] In step S24, when the real vehicle abnormal vibration test result indicates that there is no abnormal vibration phenomenon in the prototype vehicle, the simulation vibration transfer function is determined as the vibration transfer function for subsequent vehicle vibration analysis.

[0044] In step S25, when the real vehicle abnormal vibration test result indicates that there is an abnormal vibration phenomenon in the prototype vehicle, the first excitation data of each excitation point at the moment when the abnormal vibration phenomenon occurs is obtained. Additionally, in this step, the vehicle speed range at the moment when the abnormal vibration phenomenon occurs can also be obtained. In this way, during the subsequent dynamic test after replacing the components at the excitation point, the vehicle can continue to be dynamically tested within this vehicle speed range.

[0045] In step S26, the real vehicle abnormal vibration test result after replacing the components at the excitation point of the prototype vehicle is obtained until no abnormal vibration phenomenon occurs in the prototype vehicle.

[0046] That is to say, when there is an abnormal vibration phenomenon in the prototype vehicle, the components at the excitation point can be replaced. For example, the tires can be replaced with tires whose parameters are more stringent than the current standard. After the component replacement is completed, the prototype vehicle continues to be dynamically tested, and so on, until no abnormal vibration phenomenon occurs in all prototype vehicles.

[0047] In step S27, the second excitation data of each excitation point at the moment when no abnormal vibration phenomenon occurs is obtained. That is to say, if all prototype vehicles have eliminated the abnormal vibration phenomenon by repeatedly replacing the components at the excitation point, the excitation data of each excitation point at this moment is obtained.

[0048] In step S28, the reference standard for vehicle vibration analysis is determined based on the second excitation data and the simulation vibration transfer function. The reference standard for vehicle vibration analysis refers to the standard based on which the vehicle vibration analysis is carried out.

[0049] In some embodiments, the reference standard for vehicle vibration analysis is determined according to the following relationship, that is: Second excitation data * Simulation vibration transfer function = Reference standard for vehicle vibration analysis.

[0050] In step S29, based on the reference standard for vehicle vibration analysis and the first excitation data, a vibration transfer function used for subsequent vehicle vibration analysis is determined.

[0051] Since there is the following relationship between excitation and response: excitation * vibration transfer function = vibration response, therefore, after determining the reference standard for vehicle vibration analysis, the vibration transfer function used for subsequent vehicle vibration analysis can be determined according to this relationship. That is, since the first excitation data * vibration transfer function = the reference standard for vehicle vibration analysis, therefore, when both the first excitation data and the vehicle vibration decomposition reference are known, an optimized vibration transfer function can be obtained.

[0052] By adopting the above technical solution, it is possible to obtain a reasonable vehicle vibration transfer function for analyzing vehicle vibration by combining simulation analysis and on-site testing, that is, a vehicle-level vibration transfer function can be obtained. Using this vehicle-level vibration transfer function can evaluate the severity of vehicle vibration problems, so that it can be used to avoid vibration problems in forward development and solve actual vehicle vibration problems, so as to comprehensively improve and ensure vehicle comfort.

[0053] Figure 3 It is a flowchart for correcting the vehicle simulation analysis model.

[0054] As Figure 3 shown, in step S31, the static test results of the prototype vehicle are obtained, where the positions of the excitation points and vibration response points when the prototype vehicle is subjected to static testing are the same as the positions of the excitation points and vibration response points when the vehicle is subjected to simulation analysis. By ensuring the same positions, the static test results and the simulation analysis results are for the same positions, ensuring the credibility of the correction of the vehicle simulation analysis model.

[0055] In addition, a prototype vehicle can be randomly selected for static testing. Multiple prototype vehicles can also be selected for static testing, and the average of the static test results of these prototype vehicles can be calculated.

[0056] In step S32, the peak frequencies of the static test results are compared with the peak frequencies of the simulation analysis results. For example, it can be determined whether the error between the peak frequencies of the static test results and the peak frequencies of the simulation analysis results is outside the preset range. The preset range can be set according to the actual situation, for example, it can be 10% or other values.

[0057] In step S33, if the comparison result indicates that the error between the peak frequencies of the static test results and the peak frequencies of the simulation analysis results is outside the preset range, this indicates that the deviation between the simulation analysis results and the static analysis results is large, and the accuracy of the previous vehicle simulation analysis model needs to be improved. In this case, the vehicle simulation analysis model is corrected.

[0058] By adopting the above technical solution, the vehicle simulation analysis model can be corrected by means of static testing, ensuring the accuracy of the vehicle simulation analysis model.

[0059] Figure 4 It is a schematic block diagram of a vehicle vibration analysis device according to an embodiment of the present disclosure. As Figure 4 shown, the vehicle vibration analysis device includes: a calculation module 41 for calculating the simulated vibration transfer function from each excitation point to the vibration response point on the vehicle by using the simulation analysis model of the vehicle; a first acquisition module 42 for acquiring the actual vehicle abnormal vibration test results of the prototype vehicle corresponding to the vehicle; a first determination module 43 for, if the actual vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles, determining the simulated vibration transfer function as the vibration transfer function for subsequent vehicle vibration analysis; and a vibration analysis module 46 for performing vehicle vibration analysis on the vehicle by using the vibration transfer function.

[0060] By adopting the above technical solution, since the simulated vibration transfer function from each excitation point to the vibration response point on the vehicle can be calculated by using the vehicle simulation analysis model, the actual vehicle abnormal vibration test results of the prototype vehicle corresponding to the vehicle can be acquired, and when the actual vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles, the simulated vibration transfer function is determined as the vibration transfer function for subsequent vehicle vibration analysis and the vehicle vibration analysis is performed on the vehicle by using the vibration transfer function, a reasonable vehicle vibration transfer function for analyzing vehicle vibration can be obtained by combining simulation analysis and on-site testing, that is, a vehicle-level vibration transfer function can be obtained. By using this vehicle-level vibration transfer function, the severity of vehicle vibration problems can be evaluated, so that it can be used to avoid vibration problems in forward development and solve actual vehicle vibration problems (such as cab bouncing, steering wheel wobbling, and cab vibration), so as to achieve the purpose of comprehensively improving and ensuring vehicle comfort.

[0061] Figure 5 It is another schematic block diagram of a vehicle vibration analysis device according to an embodiment of the present disclosure. As Figure 5As shown, the vehicle vibration analysis device includes a second acquisition module 44 and a second determination module 45, where: The second acquisition module 44 is configured to, if the real vehicle abnormal vibration test result indicates that there is an abnormal vibration phenomenon in a sample vehicle, acquire first excitation data of each excitation point at the moment when the abnormal vibration phenomenon occurs; The first acquisition module 42 is further configured to acquire the real vehicle abnormal vibration test result after the components at the excitation points of the sample vehicle are replaced, until no abnormal vibration phenomenon occurs in the sample vehicle; The second acquisition module 44 is further configured to acquire second excitation data of each excitation point at the moment when no abnormal vibration phenomenon occurs; The second determination module 45 is configured to determine a reference standard for vehicle vibration analysis based on the second excitation data and the simulation vibration transfer function; The first determination module 43 is further configured to determine a vibration transfer function for subsequent vehicle vibration analysis based on the reference standard for vehicle vibration analysis and the first excitation data.

[0062] Optionally, the vehicle vibration analysis device according to an embodiment of the present disclosure further includes: A third acquisition module, configured to acquire the static test result of the sample vehicle, where the positions of the excitation point and the vibration response point when the sample vehicle is subjected to the static test are the same as the positions of the excitation point and the vibration response point when the vehicle is subjected to simulation analysis; A comparison module, configured to compare the peak frequency of the static test result with the peak frequency of the simulation analysis result; A correction module, configured to, if the comparison result indicates that the error between the peak frequency of the static test result and the peak frequency of the simulation analysis result is outside a preset range, correct the vehicle simulation analysis model.

[0063] Optionally, the excitation point includes at least one of a leaf spring hanger, a tire, and a drive shaft hanger.

[0064] Optionally, the vibration response point includes at least one of a seat rail, a roof panel, and a steering wheel.

[0065] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated herein.

[0066] Figure 6 is a block diagram of an electronic device 700 shown according to an exemplary embodiment. As Figure 6 shown, the electronic device 700 may include: a processor 701, a memory 702. The electronic device 700 may further include one or more of a multimedia component 703, an input / output (I / O) interface 704, and a communication component 705.

[0067] Among them, the processor 701 is used to control the overall operation of the electronic device 700 to complete all or part of the steps in the above vehicle vibration analysis method. The memory 702 is used to store various types of data to support the operation of the electronic device 700. These data may include, for example, instructions for any application or method operating on the electronic device 700, as well as application-related data, such as contact data, received and sent messages, pictures, audio, video, and so on. The memory 702 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 703 may include a screen and an audio component. Among them, the screen may be a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 702 or sent through the communication component 705. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 704 provides an interface between the processor 701 and other interface modules. The above other interface modules may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, near field communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 705 may include: a Wi-Fi module, a Bluetooth module, an NFC module, and so on.

[0068] In one exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-mentioned vehicle vibration analysis method.

[0069] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided. When the program instructions are executed by a processor, the steps of the above-mentioned vehicle vibration analysis method are implemented. For example, the computer-readable storage medium may be the above-mentioned memory 702 including program instructions, and the above program instructions may be executed by the processor 701 of the electronic device 700 to complete the above-mentioned vehicle vibration analysis method.

[0070] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0071] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure does not separately describe various possible combination methods.

[0072] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A method for analyzing the vibration of a whole vehicle, characterized in that, it includes: Using the simulation analysis model of the whole vehicle, calculating the simulation vibration transfer function from each excitation point on the whole vehicle to the vibration response point; Obtaining the real vehicle abnormal vibration test results of the prototype vehicle corresponding to the whole vehicle; If the real vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles, then determining the simulation vibration transfer function as the vibration transfer function for subsequent whole vehicle vibration analysis; and Using the vibration transfer function to perform whole vehicle vibration analysis on the whole vehicle; If the real vehicle abnormal vibration test results indicate that there is an abnormal vibration phenomenon in a prototype vehicle, then: obtaining the first excitation data of each excitation point at the moment when the abnormal vibration phenomenon occurs; obtaining the real vehicle abnormal vibration test results after replacing the components at the excitation points of the prototype vehicle until no abnormal vibration phenomenon occurs in all prototype vehicles; obtaining the second excitation data of each excitation point at the moment when no abnormal vibration phenomenon occurs; Determining the reference standard for whole vehicle vibration analysis based on the second excitation data and the simulation vibration transfer function; Determining the vibration transfer function used for subsequent whole vehicle vibration analysis based on the reference standard for whole vehicle vibration analysis and the first excitation data.

2. The method according to claim 1, characterized in that, The reference standard for whole vehicle vibration analysis is equal to the second excitation data multiplied by the simulation vibration transfer function.

3. The method according to claim 1, characterized in that, The method includes: Obtaining the static test results of the prototype vehicle, where the positions of the excitation points and the vibration response points when the prototype vehicle is subjected to static test are the same as the positions of the excitation points and the vibration response points when the whole vehicle is subjected to simulation analysis; Comparing the peak frequencies of the static test results with the peak frequencies of the simulation analysis results; If the comparison results indicate that the error between the peak frequencies of the static test results and the peak frequencies of the simulation analysis results is outside the preset range, then correcting the whole vehicle simulation analysis model.

4. The method according to any one of claims 1 to 3, characterized in that, The excitation points include at least one of a leaf spring hanger, a tire, and a drive shaft suspension.

5. The method according to any one of claims 1 to 3, characterized in that, The vibration response points include at least one of a seat rail, a roof panel, and a steering wheel.

6. A whole vehicle vibration analysis device, characterized in that, it includes: A calculation module for calculating the simulation vibration transfer function from each excitation point on the whole vehicle to the vibration response point using the whole vehicle simulation analysis model; A first acquisition module for obtaining the real vehicle abnormal vibration test results of the prototype vehicle corresponding to the whole vehicle; A first determination module for determining the simulation vibration transfer function as the vibration transfer function for subsequent whole vehicle vibration analysis if the real vehicle abnormal vibration test results indicate that no abnormal vibration phenomenon occurs in all prototype vehicles; and A vibration analysis module for performing whole vehicle vibration analysis on the whole vehicle using the vibration transfer function. The device further includes a second acquisition module and a second determination module, where: The second acquisition module is configured to, if the real vehicle abnormal vibration test result indicates that a sample vehicle has the abnormal vibration phenomenon, acquire first excitation data of each of the excitation points at the moment when the abnormal vibration phenomenon occurs; The first acquisition module is further configured to acquire the real vehicle abnormal vibration test result after the components at the excitation points of the sample vehicle are replaced until the sample vehicle no longer has the abnormal vibration phenomenon; The second acquisition module is further configured to acquire second excitation data of each of the excitation points at the moment when the abnormal vibration phenomenon no longer occurs; The second determination module is configured to determine a reference standard for vehicle vibration analysis based on the second excitation data and the simulation vibration transfer function; The first determination module is further configured to determine a vibration transfer function for subsequent vehicle vibration analysis based on the reference standard for vehicle vibration analysis and the first excitation data.

7. A non-transitory computer-readable storage medium, on which a computer program is stored, wherein, when the program is executed by a processor, the steps of the method according to any one of claims 1-5 are implemented.

8. An electronic device, wherein, comprising: a memory, on which a computer program is stored; a processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1-5.

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