Commercial vehicle brake judder processing method, apparatus, device, medium and product

Abstract

The application relates to a commercial vehicle brake jolt processing method and device, computer equipment, a storage medium and a computer program product. In the case that the strain accuracy of a target vehicle sensor meets a specified accuracy condition and the target vehicle is in a specified load condition, the target vehicle is adjusted to a target suspension posture to ensure that the suspension posture of the target vehicle is a suspension state. By setting a corresponding jolt transmission path of the target vehicle, in the case that the target vehicle is in a bench test, jolt transmission data of the target vehicle is acquired based on the jolt transmission path. Based on the jolt transmission data and the jolt transmission path, the vehicle jolt characteristics can be accurately analyzed to determine key jolt components, and then the structure of the key jolt components is changed to reduce the jolt frequency of the key jolt components and avoid the jolt of the key jolt components, so that the brake jolt degree of the target vehicle is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle engineering comfort technology, and in particular to a method, device, computer equipment, storage medium and computer program product for handling brake vibration in commercial vehicles. Background Technology

[0002] During vehicle operation, varying degrees of steering wheel brake vibration, driver's seat brake vibration, and brake pedal vibration may occur under different road conditions. This brake vibration phenomenon not only accelerates driver fatigue but also endangers driving safety, and in severe cases, can lead to serious traffic accidents and significant losses.

[0003] Traditional techniques involve placing the vehicle on a lift and testing its vibration transmission path to analyze its characteristics. However, this method only applies to passenger vehicles with a lifted suspension and does not consider the influence of suspension posture on the inherent characteristics of the suspension, pedals, and steering system. This leads to errors in the obtained vibration characteristics, resulting in higher levels of braking vibration in the vehicle. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, device, computer equipment, computer-readable storage medium, and computer program product for treating braking vibration in commercial vehicles, which can reduce the degree of vehicle braking vibration, in order to address the above-mentioned technical problems.

[0005] Firstly, this application provides a method for dealing with brake vibration in commercial vehicles, the method comprising:

[0006] Under the condition that the strain accuracy of the target vehicle sensor meets the specified accuracy condition and the target vehicle is under the specified load condition, the target vehicle is adjusted to the target suspension attitude; the target suspension attitude is determined by strain gauges arranged on the key components of the target vehicle;

[0007] The vibration transmission path of the target vehicle is set. The vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle. The vibration transmission path includes the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal.

[0008] When the target vehicle is under bench testing, the vibration transmission data of the target vehicle is obtained based on the vibration transmission path.

[0009] Based on the jitter transmission data and jitter transmission path, the key jitter components are identified, and their structures are modified.

[0010] In one embodiment, the step of determining key jitter components based on jitter transmission data and jitter transmission path includes:

[0011] Based on the jitter transmission data, the jitter characteristic data of each jitter transmission path are determined respectively;

[0012] Based on the vibration characteristic data, the comprehensive vibration characteristic data of the target vehicle is obtained by fitting.

[0013] The jitter characteristic data of each jitter transmission path is compared with the overall jitter characteristic data to determine the target jitter transmission path that has the greatest impact on the overall jitter characteristic data.

[0014] Based on the jitter transmission data of the target jitter transmission path, the key jitter components that have the greatest impact on the target jitter transmission path are identified.

[0015] In one embodiment, after modifying the structure of the key jitter component, the following is included:

[0016] The key vibration components after structural modification are verified based on comprehensive vibration characteristic data. If the verification result shows that the vibration frequency of the key vibration components does not meet the target vibration standard, the process returns to the step of adjusting the target vehicle to the target suspension attitude and continues until the vibration frequency of the key vibration components reaches the target vibration standard.

[0017] In one embodiment, the method further includes acquiring road test data and determining road braking vibration characteristic data based on the road test data; the road test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is undergoing a road test.

[0018] Acquire bench test data and determine bench brake vibration characteristic data based on the bench test data; the bench test data is collected by sensors placed on the left and right sides of the front axle of the target vehicle when the target vehicle is under bench test.

[0019] Based on road braking vibration characteristic data and bench braking vibration characteristic data, the strain accuracy of the target vehicle sensor is determined.

[0020] If the strain accuracy value is greater than the target accuracy standard value, then the strain accuracy of the target vehicle sensor is determined to meet the specified accuracy condition.

[0021] In one embodiment, the step of determining road braking vibration characteristic data based on road test data includes:

[0022] Time-domain analysis was performed on the road test data to obtain the time-domain characteristic data of braking vibration; the time-domain characteristic data of braking vibration includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration;

[0023] Frequency domain analysis was performed on the road test data to obtain the frequency domain characteristic data of braking vibration; the frequency domain characteristic data of braking vibration includes the order relationship between braking pressure and braking torque and the acceleration of key components;

[0024] Road braking vibration characteristic data are obtained based on the time-domain and frequency-domain characteristic data of braking vibration.

[0025] In one embodiment, the step of determining the strain accuracy of the target vehicle sensor based on road braking vibration characteristic data and bench braking vibration characteristic data includes:

[0026] Comparative analysis was conducted on road braking vibration characteristic data and bench braking vibration characteristic data to obtain comparative analysis results;

[0027] Based on the comparative analysis results, the strain accuracy of the target vehicle's sensors was determined.

[0028] Secondly, this application also provides a commercial vehicle brake vibration treatment device, the device comprising:

[0029] The attitude adjustment module is used to adjust the target vehicle to the target suspension attitude when the strain accuracy of the target vehicle sensor meets the specified accuracy conditions and the target vehicle is under the specified load conditions; the target suspension attitude is determined by strain gauges arranged on key components of the target vehicle.

[0030] The path setting module is used to set the corresponding vibration transmission path for the target vehicle. The vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle. The vibration transmission path includes the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal.

[0031] The data acquisition module is used to acquire vibration transmission data of the target vehicle based on the vibration transmission path when the target vehicle is under bench testing.

[0032] The jitter processing module is used to identify key jitter components based on jitter transmission data and jitter transmission paths, and to modify the structure of key jitter components.

[0033] Thirdly, this application also provides a computer device including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method steps of any one of the first aspects.

[0034] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method steps of any one of the first aspects.

[0035] Fifthly, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the method steps of any one of the first aspects.

[0036] The aforementioned commercial vehicle brake vibration processing method, device, computer equipment, storage medium, and computer program product, under the condition that the strain accuracy of the target vehicle's sensors meets the specified accuracy conditions and the target vehicle is under specified load conditions, adjusts the target vehicle to the target suspension posture to ensure that the target vehicle's suspension posture is in a suspension state. By setting the corresponding vibration transmission path for the target vehicle, and under the condition that the target vehicle is undergoing bench testing, the vibration transmission data of the target vehicle is acquired based on the vibration transmission path. Based on the vibration transmission data and vibration transmission path, the vehicle vibration characteristics can be accurately analyzed to identify key vibration components. Then, the structure of the key vibration components is modified to reduce the vibration frequency of the key vibration components and avoid vibration of the key vibration components, thereby reducing the degree of brake vibration of the target vehicle. Attached Figure Description

[0037] Figure 1 This is an application environment diagram of a commercial vehicle brake vibration processing method in one embodiment;

[0038] Figure 2 This is a flowchart illustrating a method for handling brake vibration in commercial vehicles in one embodiment;

[0039] Figure 3 This is a flowchart illustrating the steps for determining key jitter components in one embodiment;

[0040] Figure 4 This is a flowchart illustrating a method for handling brake vibration in commercial vehicles in one embodiment;

[0041] Figure 5 This is a flowchart illustrating a method for handling brake vibration in commercial vehicles in one embodiment;

[0042] Figure 6 This is a schematic diagram of road braking vibration characteristics in one embodiment;

[0043] Figure 7 This is a schematic diagram comparing the jitter level of the jitter transmission path in one embodiment;

[0044] Figure 8 This is a structural block diagram of a commercial vehicle brake vibration treatment device in one embodiment;

[0045] Figure 9 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] The commercial vehicle brake vibration processing method provided in this application embodiment can be applied to, for example, Figure 1 In the application environment shown, terminal 102 communicates with sensor 104 via a network. When the strain accuracy of sensor 104 on the target vehicle meets specified accuracy conditions and the target vehicle is under specified load conditions, terminal 102 adjusts the target vehicle to the target suspension attitude. Then, terminal 102 sets the corresponding vibration transmission path for the target vehicle. While the target vehicle is undergoing bench testing, it acquires vibration transmission data based on the vibration transmission path. Finally, based on the vibration transmission data and the vibration transmission path, terminal 102 identifies key vibration components and modifies their structure. Terminal 102 can be, but is not limited to, various personal computers, laptops, etc. Sensor 104 can be a sensor mounted on the target vehicle.

[0048] In one embodiment, such as Figure 2 As shown, a method for handling brake vibration in commercial vehicles is provided, which is applied to... Figure 1 Taking terminal 102 as an example, the explanation includes the following steps:

[0049] S202: When the strain accuracy of the target vehicle sensor meets the specified accuracy condition and the target vehicle is under the specified load condition, the target vehicle is adjusted to the target suspension attitude; the target suspension attitude is determined by strain gauges arranged on the key components of the target vehicle.

[0050] Since braking vibration data cannot be directly measured while the vehicle is driving on the road, and to ensure the vehicle's suspension posture remains in a suspended state, it is typically necessary to place the vehicle on a test bench to reproduce its road-driving state. Specifically, the terminal places the target vehicle on the test bench, applies six-part force to the wheels and braking pressure, and collects test data using sensors mounted on the target vehicle during the bench test. This data is then compared with data from the road test. A high degree of similarity between the bench test and road test data indicates successful replication on the test bench, and the strain accuracy of the target vehicle's sensors meets the test requirements. Under specified load conditions, the terminal adjusts the target vehicle's suspension posture to the designated target suspension posture, i.e., the suspension posture. These specified load conditions can be set according to actual application requirements and typically need to be the same as the load conditions of the target vehicle during the road test.

[0051] S204: Set the corresponding vibration transmission path for the target vehicle; the vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle. The vibration transmission path includes the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal.

[0052] To determine the vibration status of the target vehicle, the terminal first sets up corresponding vibration transmission paths on the target vehicle. These paths are determined by sensors located on the left and right sides of the front axle. Specifically, there are six vibration transmission paths: the first is from the left brake caliper to the vehicle body; the second is from the left brake caliper to the steering wheel; the third is from the left brake caliper to the brake pedal; the fourth is from the right brake caliper to the vehicle body; the fifth is from the right brake caliper to the steering wheel; and the sixth is from the right brake caliper to the brake pedal.

[0053] S206: When the target vehicle is under bench testing, acquire the vibration transmission data of the target vehicle based on the vibration transmission path.

[0054] In the case of the target vehicle being tested on a bench, the terminal collects vibration transmission data of the target vehicle through sensors arranged along the vibration transmission path. Specifically, the sensors include a pressure sensor, a strain gauge torque sensor, a temperature sensor, a speed sensor, and a wheel six-component force sensor. The pressure sensor is used to collect braking pressure, the strain gauge torque sensor is used to collect braking torque, the temperature sensor is used to collect braking temperature, the speed sensor is used to collect wheel speed, and the wheel six-component force sensor is used to collect wheel six-component force.

[0055] S208: Based on jitter transmission data and jitter transmission path, identify key jitter components and modify their structure.

[0056] The terminal, based on the vibration data, first needs to determine at least one transmission path that has the greatest impact on the braking vibration of the target vehicle. Then, it identifies the key vibration components within this path. To suppress braking vibration, the terminal modifies the structure of these key vibration components to reduce their vibration frequency. Furthermore, to ensure that the modified key vibration components meet the goal of reducing vibration frequency, the terminal conducts a new bench test based on the modified components to verify whether the structural changes successfully suppress the braking vibration of the target vehicle.

[0057] In the aforementioned method for handling brake vibration in commercial vehicles, under the condition that the strain accuracy of the target vehicle's sensors meets the specified accuracy conditions and the target vehicle is under specified load conditions, the target vehicle is adjusted to the target suspension posture to ensure that the suspension posture of the target vehicle is in a suspension state. By setting the corresponding vibration transmission path for the target vehicle, and under the condition that the target vehicle is undergoing bench testing, vibration transmission data of the target vehicle is obtained based on the vibration transmission path. Based on the vibration transmission data and the vibration transmission path, the vehicle vibration characteristics can be accurately analyzed to identify key vibration components. Then, the structure of the key vibration components is modified to reduce the vibration frequency of the key vibration components and avoid vibration of the key vibration components, thereby reducing the degree of brake vibration of the target vehicle.

[0058] In one embodiment, such as Figure 3 As shown, the steps for determining key jitter components based on jitter transmission data and jitter transmission paths include:

[0059] S302: Based on the jitter transmission data, determine the jitter characteristic data of each jitter transmission path.

[0060] Specifically, the terminal performs jitter transmission analysis on the jitter transmission data corresponding to each jitter transmission path to obtain jitter characteristic data for the corresponding jitter transmission path.

[0061] S304: Based on the vibration characteristic data, the comprehensive vibration characteristic data of the target vehicle is obtained by fitting.

[0062] Among them, the terminal fits the jitter characteristic data of each jitter transmission path to obtain comprehensive jitter characteristic data to characterize the jitter characteristics of the target vehicle.

[0063] S306: Compare the jitter characteristic data of each jitter transmission path with the overall jitter characteristic data to determine the target jitter transmission path that has the greatest impact on the overall jitter characteristic data.

[0064] Specifically, for each jitter transmission path, the terminal compares the jitter characteristic data corresponding to the jitter transmission path with the comprehensive jitter data to determine the target jitter transmission path that has the greatest impact on the comprehensive jitter characteristic data. In particular, the terminal compares the jitter characteristic data corresponding to the jitter transmission path with the comprehensive jitter data, and the jitter transmission path corresponding to the jitter characteristic data with the highest similarity to the comprehensive jitter data is the target jitter transmission path.

[0065] S308: Based on the jitter transmission data of the target jitter transmission path, identify the key jitter components that have the greatest impact on the target jitter transmission path.

[0066] Specifically, based on the jitter transmission data of the target jitter transmission path, the terminal identifies the key jitter components that have the greatest impact on the target jitter transmission path. In particular, based on the jitter transmission data of the target jitter transmission path, the terminal analyzes the path segment with the greatest jitter and identifies the jitter component corresponding to that segment as the key jitter component.

[0067] In this embodiment, based on the vibration transmission data, the vibration characteristic data of each vibration transmission path is determined. Based on the vibration characteristic data, the comprehensive vibration characteristic data of the target vehicle is fitted. The vibration characteristic data of each vibration transmission path is compared with the comprehensive vibration characteristic data to determine the target vibration transmission path that has the greatest impact on the comprehensive vibration characteristic data. Finally, based on the vibration transmission data of the target vibration transmission path, the key vibration component that has the greatest impact on the target vibration transmission path is determined. This allows for accurate analysis of vehicle vibration characteristics to identify key vibration components. The structure of the key vibration components is then modified to reduce their vibration frequency and prevent vibration, thereby reducing the braking vibration of the target vehicle.

[0068] In one embodiment, after modifying the structure of the key vibration component, the process includes: verifying the modified key vibration component based on comprehensive vibration characteristic data; if the verification result shows that the vibration frequency of the key vibration component does not meet the target vibration standard, then returning to the step of adjusting the target vehicle to the target suspension attitude and continuing to execute until the vibration frequency of the key vibration component reaches the target vibration standard.

[0069] In this process, after modifying the structure of key vibration components, the terminal verifies the modified components based on comprehensive vibration characteristic data to ensure that the modified structure can suppress braking vibration. If the verification result shows that the vibration frequency of the key vibration components does not meet the target vibration standard, the process returns to the step of adjusting the target vehicle to the target suspension attitude and continues until the vibration frequency of the key vibration components reaches the target vibration standard.

[0070] In this embodiment, the key vibration components after structural modification are verified based on comprehensive vibration characteristic data. If the verification result shows that the vibration frequency of the key vibration components does not meet the target vibration standard, the process returns to the step of adjusting the target vehicle to the target suspension posture and continues until the vibration frequency of the key vibration components reaches the target vibration standard. This ensures that the key vibration components after structural modification can reduce the vibration frequency, thereby reducing the braking vibration of the target vehicle.

[0071] In one embodiment, such as Figure 4 As shown, the method also includes the following steps:

[0072] S402: Acquire road test data and determine road braking vibration characteristic data based on the road test data; the road test data is collected by sensors placed on the left and right sides of the front axle of the target vehicle when the target vehicle is under road test.

[0073] The road test data is collected by sensors placed on the left and right sides of the front axle of the target vehicle when it is under road testing. Specifically, the road test data includes braking pressure, braking torque, braking temperature, wheel speed, and wheel force.

[0074] S404: Acquire bench test data and determine bench braking vibration characteristic data based on the bench test data; the bench test data is collected by sensors placed on the left and right sides of the front axle of the target vehicle when the target vehicle is under bench test.

[0075] The terminal places the target vehicle on a test bench and applies a six-part force to the wheels and braking pressure to the target vehicle. During the bench test, test data is collected through sensors installed on the target vehicle. Specifically, the types of bench test data collected are the same as those of theoretical test data.

[0076] S406: Determine the strain accuracy of the target vehicle's sensors based on road braking vibration characteristic data and bench braking vibration characteristic data.

[0077] The terminal compares the obtained bench braking vibration characteristic data with the road braking vibration characteristic data of the target vehicle during road testing to determine the strain accuracy of the sensors arranged on the bench test platform.

[0078] S408: If the strain accuracy value is greater than the target accuracy standard value, then the strain accuracy of the target vehicle sensor is determined to meet the specified accuracy condition.

[0079] When the data from the bench test is highly similar to the data from the road test, it indicates that the test was successfully reproduced on the bench, and the strain accuracy of the target vehicle sensor meets the test requirements of the bench test.

[0080] In this embodiment, road test data is acquired, and road braking vibration characteristic data is determined based on the road test data. Bench test data is acquired, and bench braking vibration characteristic data is determined based on the bench test data. Based on the road braking vibration characteristic data and the bench braking vibration characteristic data, the strain accuracy of the target vehicle sensor is determined. If the strain accuracy value is greater than the target accuracy standard value, it is determined that the strain accuracy of the target vehicle sensor meets the specified accuracy condition. This ensures that the state of the target vehicle in the road test can be successfully reproduced on the bench test rig, achieving accurate analysis of the vehicle vibration characteristics to identify key vibration components. Then, the structure of the key vibration components is modified to reduce the vibration frequency of the key vibration components and avoid vibration of the key vibration components, thereby reducing the degree of braking vibration of the target vehicle.

[0081] In one embodiment, the step of determining road braking vibration characteristic data based on road test data includes: performing time-domain analysis on the road test data to obtain braking vibration time-domain characteristic data; the braking vibration time-domain characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; performing frequency-domain analysis on the road test data to obtain braking vibration frequency-domain characteristic data; the braking vibration frequency-domain characteristic data includes braking pressure, and the order relationship between braking torque and acceleration of key components; and obtaining road braking vibration characteristic data based on the braking vibration time-domain characteristic data and the braking vibration frequency-domain characteristic data.

[0082] The terminal analyzes the road test data in both the time and frequency domains to obtain the corresponding braking vibration time-domain characteristic data and braking vibration frequency-domain characteristic data. The braking vibration time-domain characteristic data and braking vibration frequency-domain characteristic data are used together as the road braking vibration characteristic data.

[0083] In this embodiment, time-domain analysis of road test data is performed to obtain time-domain characteristic data of braking vibration, and frequency-domain analysis of road test data is performed to obtain frequency-domain characteristic data of braking vibration. Based on the time-domain characteristic data and frequency-domain characteristic data of braking vibration, road braking vibration characteristic data is obtained. This allows for accurate analysis of vehicle vibration characteristics to identify key vibration components. Then, the structure of the key vibration components is modified to reduce the vibration frequency of the key vibration components and avoid their vibration, thereby reducing the degree of braking vibration of the target vehicle.

[0084] In one embodiment, the step of determining the strain accuracy of a target vehicle sensor based on road braking vibration characteristic data and bench braking vibration characteristic data includes: performing a comparative analysis on the road braking vibration characteristic data and the bench braking vibration characteristic data to obtain a comparative analysis result; and determining the strain accuracy of the target vehicle sensor based on the comparative analysis result.

[0085] The terminal compares and analyzes the road braking vibration characteristic data and the bench braking vibration characteristic data to obtain the comparison analysis results. The comparison analysis results are used to indicate the similarity between the bench braking vibration characteristic data and the road braking vibration characteristic data. Based on the comparison analysis results, the terminal determines the strain accuracy of the target vehicle sensor. When the data in the bench test process is highly similar to the data in the road test, it indicates that the test was successfully reproduced on the bench test platform, and the strain accuracy of the target vehicle sensor meets the test requirements of the bench test.

[0086] In this embodiment, by comparing and analyzing road braking vibration characteristic data and bench braking vibration characteristic data, the comparison and analysis results are obtained. Based on the comparison and analysis results, the strain accuracy of the target vehicle's sensors is determined, which ensures that the target vehicle's state during road testing can be successfully reproduced on the bench test rig. This enables accurate analysis of the vehicle's vibration characteristics, identifies key vibration components, and then modifies the structure of these key vibration components to reduce their vibration frequency and prevent vibration, thereby reducing the degree of braking vibration of the target vehicle.

[0087] In one embodiment, such as Figure 5 As shown, a method for addressing brake vibration in commercial vehicles includes the following steps:

[0088] S502: In road tests, the suspension attitude of the target vehicle is set by arranging air pressure sensors on the left and right sides of the front axle to obtain braking pressure, strain gauge torque sensors to obtain braking torque, temperature sensors to obtain braking temperature, speed sensors to obtain wheel speed, and wheel six-component force sensors to obtain wheel six-component force. Strain gauges are also arranged on key components to achieve the suspension attitude setting of the target vehicle.

[0089] S504: The braking vibration characteristics of the road test are obtained through the brake pressure sensor, brake torque sensor, and acceleration sensor. The time-domain characteristics of the braking vibration are obtained through time-domain analysis, including brake torque fluctuation, brake pressure fluctuation, and root mean square value of acceleration. The frequency-domain characteristics of the braking vibration are obtained through frequency-domain analysis, including the order relationship between brake pressure, brake torque and acceleration of key components, thus obtaining the road test vibration characteristic data.

[0090] S506: The target vehicle is placed on a test bench, and the suspension attitude is set by arranging strain gauges on various key components. Since the vibration is a low-frequency forced vibration, the strain gauges are arranged near the connection points of the components and the midpoint of the components. Six important vibration transmission paths, including the left and right sides, are arranged on the target vehicle by sensors. These paths are: left brake caliper to steering wheel, left brake caliper to body, left brake caliper to brake pedal, right brake caliper to steering wheel, right brake caliper to body, and right brake caliper to brake pedal.

[0091] S508: Analyze the data collected in the bench test to obtain bench braking vibration characteristic data, and compare it with the road braking vibration characteristic data in the road test to determine the effectiveness of suspension attitude reproduction. If the strain accuracy of each sensor is ≥80%, it means that the attitude reproduction of the suspension and steering system is effective. If the strain accuracy of each sensor is ≤80%, the wheel six-component force is readjusted until the sensor accuracy meets the requirements.

[0092] The schematic diagram of road braking vibration characteristic data is shown below. Figure 6 As shown, Figure 6 The horizontal axis represents the frequency of road braking vibration, and the vertical axis represents the value assigned to road braking vibration.

[0093] S510: Adjust the target vehicle to the target suspension posture and set the corresponding vibration transmission path of the target vehicle for bench testing. The vibration transmission path includes: the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal.

[0094] S512: When the target vehicle is under bench testing, based on the vibration transmission path, acquire the vibration transmission data of the target vehicle, determine at least one transmission path that has the greatest impact on the braking vibration of the target vehicle, and identify the key vibration components in it.

[0095] Specifically, such as Figure 7 As shown, Figure 7 This diagram illustrates the comparison of jitter levels along the jitter transmission path. Figure 7The horizontal axis represents the jitter frequency, with darker colors indicating higher jitter intensity. The vertical axis represents different jitter transmission paths. Figure 7 The first line from top to bottom on the vertical axis represents the standard vibration characteristic data of the target point on the target vehicle's vibration path. The third to fifth lines represent the vibration characteristic data of three vibration transmission paths. The second line represents the comprehensive vibration characteristic data obtained by fitting the data from the third to the fifth lines. The terminal compares the data from the third to the fifth lines with the data from the second line to determine the target transmission path that has the greatest impact on the comprehensive vibration characteristic data. By analyzing the vibration frequency and intensity of each vibration component in the vibration characteristic data of the target transmission path, the key vibration components are identified.

[0096] S514: Modify the structure of key vibration components to avoid the frequency of brake vibration, and conduct brake vibration road tests using the modified steering knuckle to verify the effectiveness of the modification.

[0097] In this embodiment, by acquiring the vibration condition and the attitude of the suspension and steering system under that condition, and inputting the acquired data into the bench test, the suspension attitude parameters of the bench test are compared with those of the road test to verify the correctness of the bench test. The bench test of the braking vibration transmission path, through the set vibration transmission path, can achieve accurate analysis of the vehicle vibration characteristics, identify key vibration components, and then modify the structure of the key vibration components to reduce the vibration frequency of the key vibration components, avoid the vibration of the key vibration components, and thus reduce the degree of braking vibration of the target vehicle.

[0098] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0099] Based on the same inventive concept, this application also provides a commercial vehicle brake vibration treatment device for implementing the aforementioned commercial vehicle brake vibration treatment method. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations of one or more commercial vehicle brake vibration treatment device embodiments provided below can be found in the limitations of the commercial vehicle brake vibration treatment method described above, and will not be repeated here.

[0100] In one embodiment, such as Figure 8 As shown, a commercial vehicle braking vibration processing device is provided, comprising: an attitude adjustment module 10, a path setting module 20, a data acquisition module 30, and a vibration processing module 40, wherein:

[0101] The attitude adjustment module 10 is used to adjust the target vehicle to the target suspension attitude when the strain accuracy of the target vehicle sensor meets the specified accuracy condition and the target vehicle is under the specified load condition; the target suspension attitude is determined by strain gauges arranged on the key components of the target vehicle.

[0102] The path setting module 20 is used to set the corresponding vibration transmission path for the target vehicle. The vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle. The vibration transmission path includes the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal.

[0103] The data acquisition module 30 is used to acquire vibration transmission data of the target vehicle based on the vibration transmission path when the target vehicle is undergoing bench testing.

[0104] The jitter processing module 40 is used to identify key jitter components and modify their structure based on jitter transmission data and jitter transmission path.

[0105] In one embodiment, the jitter processing module 40 includes: a jitter data determination unit, a comprehensive data fitting unit, a transmission path determination unit, and a jitter component determination unit, wherein:

[0106] The jitter data determination unit is used to determine the jitter characteristic data of each jitter transmission path based on the jitter transmission data.

[0107] The comprehensive data fitting unit is used to fit the comprehensive vibration characteristic data of the target vehicle based on the vibration characteristic data.

[0108] The transmission path determination unit is used to compare the jitter characteristic data of each jitter transmission path with the comprehensive jitter characteristic data to determine the target jitter transmission path that has the greatest impact on the comprehensive jitter characteristic data.

[0109] The jitter component determination unit is used to determine the key jitter components that have the greatest impact on the target jitter transmission path based on the jitter transmission data of the target jitter transmission path.

[0110] In one embodiment, the vibration processing module 40 is further configured to verify the key vibration components after the structural modification based on comprehensive vibration characteristic data. If the verification result shows that the vibration frequency of the key vibration components does not meet the target vibration standard, the module returns to the step of adjusting the target vehicle to the target suspension attitude and continues to execute until the vibration frequency of the key vibration components reaches the target vibration standard.

[0111] In one embodiment, the vibration processing module 40 is further configured to acquire road test data and determine road braking vibration characteristic data based on the road test data; the road test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is undergoing a road test; acquire bench test data and determine bench braking vibration characteristic data based on the bench test data; the bench test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is undergoing a bench test; based on the road braking vibration characteristic data and the bench braking vibration characteristic data, determine the strain accuracy of the target vehicle sensors; if the strain accuracy value is greater than the target accuracy standard value, then it is determined that the strain accuracy of the target vehicle sensors meets the specified accuracy condition.

[0112] In one embodiment, the vibration processing module 40 is further configured to perform time-domain analysis on the road test data to obtain braking vibration time-domain characteristic data; the braking vibration time-domain characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; perform frequency-domain analysis on the road test data to obtain braking vibration frequency-domain characteristic data; the braking vibration frequency-domain characteristic data includes braking pressure, and the order relationship between braking torque and acceleration of key components; and obtain road braking vibration characteristic data based on the braking vibration time-domain characteristic data and the braking vibration frequency-domain characteristic data.

[0113] In one embodiment, the vibration processing module 40 is further used to compare and analyze the road braking vibration characteristic data and the bench braking vibration characteristic data to obtain the comparison and analysis results; based on the comparison and analysis results, the strain accuracy of the target vehicle sensor is determined.

[0114] The modules in the aforementioned commercial vehicle brake vibration treatment device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0115] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 9As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When executed by the processor, the computer program implements a method for handling brake shudder in commercial vehicles. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0116] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0117] In one embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: adjusting the target vehicle to a target suspension attitude when the strain accuracy of the target vehicle sensors meets a specified accuracy condition and the target vehicle is under a specified load condition; the target suspension attitude is determined by strain gauges arranged on key components of the target vehicle; setting a corresponding vibration transmission path for the target vehicle; the vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle, and the vibration transmission path includes a path from the left brake caliper to the vehicle body, a path from the left brake caliper to the steering wheel, a path from the left brake caliper to the brake pedal, a path from the right brake caliper to the vehicle body, a path from the right brake caliper to the steering wheel, and a path from the right brake caliper to the brake pedal; acquiring vibration transmission data of the target vehicle based on the vibration transmission path when the target vehicle is under bench testing; and determining key vibration components and modifying the structure of the key vibration components based on the vibration transmission data and the vibration transmission path.

[0118] In one embodiment, the determination of key vibration components based on vibration transmission data and vibration transmission paths when the processor executes a computer program includes: determining vibration characteristic data for each vibration transmission path based on the vibration transmission data; fitting comprehensive vibration characteristic data of the target vehicle based on the vibration characteristic data; comparing the vibration characteristic data of each vibration transmission path with the comprehensive vibration characteristic data to determine the target vibration transmission path that has the greatest impact on the comprehensive vibration characteristic data; and determining the key vibration components that have the greatest impact on the target vibration transmission path based on the vibration transmission data of the target vibration transmission path.

[0119] In one embodiment, after the processor executes the computer program involving changes to the structure of a key vibration component, the process includes: verifying the key vibration component with the modified structure based on comprehensive vibration characteristic data; if the verification result shows that the vibration frequency of the key vibration component does not meet the target vibration standard, then returning to the step of adjusting the target vehicle to the target suspension attitude and continuing execution until the vibration frequency of the key vibration component reaches the target vibration standard.

[0120] In one embodiment, when the processor executes the computer program, it further performs the following steps: acquiring road test data and determining road braking vibration characteristic data based on the road test data; the road test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle while the target vehicle is undergoing a road test; acquiring bench test data and determining bench braking vibration characteristic data based on the bench test data; the bench test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle while the target vehicle is undergoing a bench test; determining the strain accuracy of the target vehicle sensors based on the road braking vibration characteristic data and the bench braking vibration characteristic data; if the strain accuracy value is greater than the target accuracy standard value, then it is determined that the strain accuracy of the target vehicle sensors meets the specified accuracy condition.

[0121] In one embodiment, the determination of road braking vibration characteristic data based on road test data by the processor executing the computer program includes: performing time-domain analysis on the road test data to obtain time-domain braking vibration characteristic data; the time-domain braking vibration characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; performing frequency-domain analysis on the road test data to obtain frequency-domain braking vibration characteristic data; the frequency-domain braking vibration characteristic data includes braking pressure and the order relationship between braking torque and acceleration of key components; and acquiring road braking vibration characteristic data based on the time-domain braking vibration characteristic data and the frequency-domain braking vibration characteristic data.

[0122] In one embodiment, the processor executing a computer program involves determining the strain accuracy of a target vehicle sensor based on road braking vibration characteristic data and bench braking vibration characteristic data, including: performing a comparative analysis on the road braking vibration characteristic data and the bench braking vibration characteristic data to obtain a comparative analysis result; and determining the strain accuracy of the target vehicle sensor based on the comparative analysis result.

[0123] In one embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, performs the following steps: adjusting the target vehicle to a target suspension attitude under specified accuracy conditions and when the strain accuracy of the target vehicle sensors meets specified accuracy conditions and the target vehicle is under specified load conditions; the target suspension attitude is determined by strain gauges arranged on key components of the target vehicle; setting a corresponding vibration transmission path for the target vehicle; the vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle, and the vibration transmission path includes a path from the left brake caliper to the vehicle body, a path from the left brake caliper to the steering wheel, a path from the left brake caliper to the brake pedal, a path from the right brake caliper to the vehicle body, a path from the right brake caliper to the steering wheel, and a path from the right brake caliper to the brake pedal; acquiring vibration transmission data of the target vehicle based on the vibration transmission path when the target vehicle is under bench testing; and determining key vibration components and modifying the structure of the key vibration components based on the vibration transmission data and the vibration transmission path.

[0124] In one embodiment, when a computer program is executed by a processor, determining key vibration components based on vibration transmission data and vibration transmission paths includes: determining vibration characteristic data for each vibration transmission path based on the vibration transmission data; fitting comprehensive vibration characteristic data of the target vehicle based on the vibration characteristic data; comparing the vibration characteristic data of each vibration transmission path with the comprehensive vibration characteristic data to determine the target vibration transmission path that has the greatest impact on the comprehensive vibration characteristic data; and determining the key vibration components that have the greatest impact on the target vibration transmission path based on the vibration transmission data of the target vibration transmission path.

[0125] In one embodiment, after the computer program is executed by the processor and involves changing the structure of the key vibration component, the process includes: verifying the key vibration component after the structure change based on comprehensive vibration characteristic data; if the verification result shows that the vibration frequency of the key vibration component does not reach the target vibration standard, then returning to the step of adjusting the target vehicle to the target suspension attitude and continuing to execute until the vibration frequency of the key vibration component reaches the target vibration standard.

[0126] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: acquiring road test data and determining road braking vibration characteristic data based on the road test data; the road test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle while the target vehicle is undergoing a road test; acquiring bench test data and determining bench braking vibration characteristic data based on the bench test data; the bench test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle while the target vehicle is undergoing a bench test; determining the strain accuracy of the target vehicle sensors based on the road braking vibration characteristic data and the bench braking vibration characteristic data; if the strain accuracy value is greater than the target accuracy standard value, then it is determined that the strain accuracy of the target vehicle sensors meets the specified accuracy condition.

[0127] In one embodiment, the process of determining road braking vibration characteristic data based on road test data when the computer program is executed by a processor includes: performing time-domain analysis on the road test data to obtain time-domain braking vibration characteristic data; the time-domain braking vibration characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; performing frequency-domain analysis on the road test data to obtain frequency-domain braking vibration characteristic data; the frequency-domain braking vibration characteristic data includes braking pressure and the order relationship between braking torque and acceleration of key components; and obtaining road braking vibration characteristic data based on the time-domain braking vibration characteristic data and the frequency-domain braking vibration characteristic data.

[0128] In one embodiment, when a computer program is executed by a processor, the determination of the strain accuracy of a target vehicle sensor based on road braking vibration characteristic data and bench braking vibration characteristic data includes: performing a comparative analysis on the road braking vibration characteristic data and the bench braking vibration characteristic data to obtain a comparative analysis result; and determining the strain accuracy of the target vehicle sensor based on the comparative analysis result.

[0129] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps: adjusting the target vehicle to a target suspension attitude under the condition that the strain accuracy of the target vehicle sensors meets a specified accuracy condition and the target vehicle is under a specified load condition; the target suspension attitude is determined by strain gauges arranged on key components of the target vehicle; setting a corresponding vibration transmission path for the target vehicle; the vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle, and the vibration transmission path includes a path from the left brake caliper to the vehicle body, a path from the left brake caliper to the steering wheel, a path from the left brake caliper to the brake pedal, a path from the right brake caliper to the vehicle body, a path from the right brake caliper to the steering wheel, and a path from the right brake caliper to the brake pedal; acquiring vibration transmission data of the target vehicle based on the vibration transmission path when the target vehicle is under bench testing; and determining key vibration components and modifying the structure of the key vibration components based on the vibration transmission data and the vibration transmission path.

[0130] In one embodiment, when a computer program is executed by a processor, determining key vibration components based on vibration transmission data and vibration transmission paths includes: determining vibration characteristic data for each vibration transmission path based on the vibration transmission data; fitting comprehensive vibration characteristic data of the target vehicle based on the vibration characteristic data; comparing the vibration characteristic data of each vibration transmission path with the comprehensive vibration characteristic data to determine the target vibration transmission path that has the greatest impact on the comprehensive vibration characteristic data; and determining the key vibration components that have the greatest impact on the target vibration transmission path based on the vibration transmission data of the target vibration transmission path.

[0131] In one embodiment, after the computer program is executed by the processor and involves changing the structure of the key vibration component, the process includes: verifying the key vibration component after the structure change based on comprehensive vibration characteristic data; if the verification result shows that the vibration frequency of the key vibration component does not reach the target vibration standard, then returning to the step of adjusting the target vehicle to the target suspension attitude and continuing to execute until the vibration frequency of the key vibration component reaches the target vibration standard.

[0132] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: acquiring road test data and determining road braking vibration characteristic data based on the road test data; the road test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle while the target vehicle is undergoing a road test; acquiring bench test data and determining bench braking vibration characteristic data based on the bench test data; the bench test data is collected by sensors arranged on the left and right sides of the front axle of the target vehicle while the target vehicle is undergoing a bench test; determining the strain accuracy of the target vehicle sensors based on the road braking vibration characteristic data and the bench braking vibration characteristic data; if the strain accuracy value is greater than the target accuracy standard value, then it is determined that the strain accuracy of the target vehicle sensors meets the specified accuracy condition.

[0133] In one embodiment, the process of determining road braking vibration characteristic data based on road test data when the computer program is executed by a processor includes: performing time-domain analysis on the road test data to obtain time-domain braking vibration characteristic data; the time-domain braking vibration characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; performing frequency-domain analysis on the road test data to obtain frequency-domain braking vibration characteristic data; the frequency-domain braking vibration characteristic data includes braking pressure and the order relationship between braking torque and acceleration of key components; and obtaining road braking vibration characteristic data based on the time-domain braking vibration characteristic data and the frequency-domain braking vibration characteristic data.

[0134] In one embodiment, when a computer program is executed by a processor, the determination of the strain accuracy of a target vehicle sensor based on road braking vibration characteristic data and bench braking vibration characteristic data includes: performing a comparative analysis on the road braking vibration characteristic data and the bench braking vibration characteristic data to obtain a comparative analysis result; and determining the strain accuracy of the target vehicle sensor based on the comparative analysis result.

[0135] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0136] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0137] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for treating brake vibration in commercial vehicles, characterized in that, The method includes: When the strain accuracy of the target vehicle sensor meets the specified accuracy condition and the target vehicle is under the specified load condition, the target vehicle is adjusted to the target suspension attitude; the target suspension attitude is determined by strain gauges arranged on the key components of the target vehicle. The target vehicle is configured with a corresponding vibration transmission path. The vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle. The vibration transmission path includes the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal. When the target vehicle is undergoing bench testing, the vibration transmission data of the target vehicle is obtained based on the vibration transmission path; Based on the jitter transmission data and the jitter transmission path, key jitter components are identified, and the structure of the key jitter components is modified. The determination of key jitter components based on the jitter transmission data and the jitter transmission path includes: Based on the jitter transmission data, the jitter characteristic data of each jitter transmission path are determined respectively; Based on the vibration characteristic data, the comprehensive vibration characteristic data of the target vehicle is obtained by fitting. The jitter characteristic data of each jitter transmission path is compared with the comprehensive jitter characteristic data to determine the target jitter transmission path that has the greatest impact on the comprehensive jitter characteristic data. Based on the jitter transmission data of the target jitter transmission path, the key jitter components that have the greatest impact on the target jitter transmission path are identified. After modifying the structure of the key jitter component, the following is included: Based on the comprehensive vibration characteristic data, the key vibration components after the structural modification are verified. If the verification result shows that the vibration frequency of the key vibration component does not reach the target vibration standard, the step of adjusting the target vehicle to the target suspension posture is returned and the process continues until the vibration frequency of the key vibration component reaches the target vibration standard. The method further includes: Acquire road test data and determine road braking vibration characteristic data based on the road test data; the road test data is collected by the sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is under road test. Acquire bench test data and determine bench brake vibration characteristic data based on the bench test data; the bench test data is collected by the sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is under bench test. Based on the road braking vibration characteristic data and the bench braking vibration characteristic data, the strain accuracy of the target vehicle sensor is determined. If the strain accuracy value is greater than the target accuracy standard value, then the strain accuracy of the target vehicle sensor is determined to meet the specified accuracy condition. The determination of road braking vibration characteristic data based on the road test data includes: Time-domain analysis was performed on the road test data to obtain braking vibration time-domain characteristic data; the braking vibration time-domain characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; Frequency domain analysis was performed on the road test data to obtain brake vibration frequency domain characteristic data; the brake vibration frequency domain characteristic data includes the order relationship between braking pressure and braking torque and the acceleration of key components; Based on the time-domain characteristic data and the frequency-domain characteristic data of braking vibration, road braking vibration characteristic data is obtained; The determination of the strain accuracy of the target vehicle sensor based on the road braking vibration characteristic data and the bench braking vibration characteristic data includes: The road braking vibration characteristic data and the bench braking vibration characteristic data are compared and analyzed to obtain the comparison and analysis results; Based on the comparative analysis results, the strain accuracy of the target vehicle sensor is determined.

2. A device for treating brake vibration in commercial vehicles, characterized in that, The device includes: The attitude adjustment module is used to adjust the target vehicle to a target suspension attitude when the strain accuracy of the target vehicle sensor meets a specified accuracy condition and the target vehicle is under a specified load condition; the target suspension attitude is determined by strain gauges arranged on key components of the target vehicle. The strain accuracy of the target vehicle sensor is determined to meet the specified accuracy condition in the following way: Acquire road test data and determine road braking vibration characteristic data based on the road test data; the road test data is collected by the sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is under road test. Acquire bench test data and determine bench brake vibration characteristic data based on the bench test data; the bench test data is collected by the sensors arranged on the left and right sides of the front axle of the target vehicle when the target vehicle is under bench test. Based on the road braking vibration characteristic data and the bench braking vibration characteristic data, the strain accuracy of the target vehicle sensor is determined. If the strain accuracy value is greater than the target accuracy standard value, then the strain accuracy of the target vehicle sensor is determined to meet the specified accuracy condition. The determination of road braking vibration characteristic data based on the road test data includes: Time-domain analysis was performed on the road test data to obtain braking vibration time-domain characteristic data; the braking vibration time-domain characteristic data includes braking torque fluctuation, braking pressure fluctuation, and root mean square value of acceleration; Frequency domain analysis was performed on the road test data to obtain brake vibration frequency domain characteristic data; the brake vibration frequency domain characteristic data includes the order relationship between braking pressure and braking torque and the acceleration of key components; Based on the time-domain characteristic data and the frequency-domain characteristic data of braking vibration, road braking vibration characteristic data is obtained; The determination of the strain accuracy of the target vehicle sensor based on the road braking vibration characteristic data and the bench braking vibration characteristic data includes: The road braking vibration characteristic data and the bench braking vibration characteristic data are compared and analyzed to obtain the comparison and analysis results; Based on the comparative analysis results, the strain accuracy of the target vehicle sensor is determined; The path setting module is used to set the corresponding vibration transmission path of the target vehicle; the vibration transmission path is determined by sensors arranged on the left and right sides of the front axle of the target vehicle, and the vibration transmission path includes the path from the left brake caliper to the vehicle body, the path from the left brake caliper to the steering wheel, the path from the left brake caliper to the brake pedal, the path from the right brake caliper to the vehicle body, the path from the right brake caliper to the steering wheel, and the path from the right brake caliper to the brake pedal. The data acquisition module is used to acquire vibration transmission data of the target vehicle based on the vibration transmission path when the target vehicle is under bench testing. The vibration processing module includes a vibration data determination unit, a comprehensive data fitting unit, a transmission path determination unit, and a vibration component determination unit. The vibration processing module is used to determine key vibration components based on the vibration transmission data and the vibration transmission path, and to modify the structure of the key vibration components. Specifically, the vibration data determination unit is used to determine the vibration characteristic data of each vibration transmission path based on the vibration transmission data; the comprehensive data fitting unit is used to fit comprehensive vibration characteristic data of the target vehicle based on the vibration characteristic data; the transmission path determination unit is used to compare the vibration characteristic data of each vibration transmission path with the comprehensive vibration characteristic data to determine the target vibration transmission path that has the greatest impact on the comprehensive vibration characteristic data; and the vibration component determination unit is used to determine the key vibration component that has the greatest impact on the target vibration transmission path based on the vibration transmission data of the target vibration transmission path. The vibration processing module is also used to verify the key vibration components after the structural modification based on the comprehensive vibration characteristic data. If the verification result shows that the vibration frequency of the key vibration component does not reach the target vibration standard, the module returns to the step of adjusting the target vehicle to the target suspension posture and continues to execute until the vibration frequency of the key vibration component reaches the target vibration standard.

3. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method of claim 1.

4. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method of claim 1.

5. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method of claim 1.

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