Braking noise debugging method, device, equipment and readable storage medium

Abstract

The present invention provides a brake noise debugging method, device, equipment and readable storage medium. The method comprises: determining each test factor strongly related to the brake noise, and performing each first test result of the brake noise test based on the adjusted values ​​of each test factor strongly related to the brake noise, the form of the friction block chamfer test factor and the form of the friction block muffler test factor; if the decibel of the brake noise in each first test result corresponding to any combination of the friction block chamfer test factor and any combination of the friction block muffler test factor is less than the first threshold value and the probability of occurrence of the brake noise is less than the second threshold value, then determining the brake noise debugging scheme based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of the friction block chamfer and any combination of the friction block muffler. Through the present invention, the problems of low efficiency and poor reliability of the currently formulated brake noise debugging scheme are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle testing, and in particular to a brake noise debugging method, device, equipment and a readable storage medium. Background Art

[0002] As people's requirements for braking comfort become higher and higher, vehicle manufacturers also have higher and higher requirements for brake noise debugging results during the development process. The debugging process of brake noise generally includes the reference setting stage, solution research stage, solution confirmation stage and solution approval stage.

[0003] In the reference setting stage, qualified devices are selected for testing. Then, in the scheme research stage, the test results of the devices selected for the test in the reference setting stage are analyzed. If the test results meet the requirements, a test plan is formulated based on the devices selected for the test in the reference setting stage. The formulated plan is then verified in the scheme confirmation stage. If the verification passes, the scheme approval stage is entered, and the formulated plan is put into use in batches. Based on the results of user use, the noise debugging plan is verified again.

[0004] Therefore, it is crucial to select suitable devices for the test. However, currently, devices are generally randomly selected for the test in the reference setting stage, which leads to large fluctuations in the test results and a high probability of not meeting the requirements. As a result, when analyzing based on the test results in the program research stage, the efficiency of program formulation is low and the reliability of the formulated program is poor. Summary of the invention

[0005] The main purpose of the present invention is to provide a brake noise debugging method, device, equipment and readable storage medium, aiming to solve the problems of low efficiency and poor reliability of the current brake noise debugging scheme.

[0006] In a first aspect, the present invention provides a brake noise debugging method, the brake noise debugging method comprising:

[0007] Perform parameter fitting on the values ​​of each test factor, the decibel of brake noise and the probability of occurrence of brake noise, and determine each test factor that is strongly correlated with brake noise;

[0008] Adjust the values ​​of each test factor strongly related to the brake noise, perform a partial factorial design based on the adjusted values ​​of each test factor strongly related to the brake noise, the form of the friction block chamfer test factor, and the form of the friction block muffler test factor, and obtain a first design result;

[0009] Acquire each first test result of a brake noise test based on the first design result, wherein the first test result includes decibels of brake noise and a probability of occurrence of brake noise;

[0010] If the decibels of the braking noise in each first test result corresponding to any combination of the friction block chamfer test factor and any combination of the friction block silencer plate are less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, then the braking noise debugging plan is determined based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of the friction block chamfer and any combination of the friction block silencer plate.

[0011] Optionally, before the step of performing parameter fitting on the values ​​of each test factor and the decibel of the braking noise and the probability of occurrence of the braking noise to determine each test factor strongly correlated with the braking noise, the step includes:

[0012] Based on the values ​​of each experimental factor, a full factorial experimental design is performed to obtain the second design result;

[0013] Obtain each second test result of the brake noise test based on the second design result, wherein the second test result includes decibels of the brake noise and a probability of occurrence of the brake noise.

[0014] Optionally, after the step of obtaining each first test result of the brake noise test based on the first design result, the following steps are included:

[0015] If there is a first test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold in each first test result corresponding to any combination of any friction block chamfer and any friction block silencer, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

[0016] Optionally, after the step of determining the braking noise debugging scheme based on the values ​​of each test factor strongly related to the braking noise if the decibel of the braking noise in each first test result is less than a threshold value and the occurrence probability of the braking noise is less than a threshold value, the method further comprises:

[0017] Based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme, a full factorial experimental design is performed to obtain the third design result;

[0018] Acquire each third test result of the brake noise test based on the third design result, wherein the third test result includes decibels of the brake noise and the probability of occurrence of the brake noise;

[0019] If the decibel of the braking noise in each of the third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging solution passes the test.

[0020] Optionally, after the step of obtaining each third test result of the brake noise test based on the third design result, the following steps are included:

[0021] If there is a third test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold among the third test results, the steps of adjusting the values ​​of each test factor strongly correlated with braking noise, performing partial factorial design based on the adjusted values ​​of each test factor strongly correlated with braking noise, the value of the friction block chamfer test factor and the value of the friction block muffler test factor are performed to obtain the first design result.

[0022] In a second aspect, the present invention further provides a brake noise debugging device, the brake noise debugging device comprising:

[0023] A fitting module is used to perform parameter fitting on the values ​​of various test factors, the decibel of the braking noise and the probability of occurrence of the braking noise, and determine various test factors that are strongly correlated with the braking noise;

[0024] A design module, used for adjusting the values ​​of various test factors strongly related to the brake noise, performing a partial factorial design based on the adjusted values ​​of various test factors strongly related to the brake noise, the form of the friction block chamfer test factor, and the form of the friction block muffler test factor, to obtain a first design result;

[0025] an acquisition module, configured to acquire first test results of a brake noise test based on the first design result, wherein the first test results include decibels of the brake noise and a probability of occurrence of the brake noise;

[0026] A determination module is used to determine a braking noise debugging plan based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of a friction block chamfer and any friction block silencer if the decibels of the braking noise in each first test result corresponding to any combination of a friction block chamfer and any friction block silencer are less than a first threshold and the probability of occurrence of the braking noise is less than a second threshold.

[0027] Optionally, the brake noise debugging device further includes a detection module, which is used to:

[0028] Based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme, a full factorial experimental design is performed to obtain the third design result;

[0029] Acquire each third test result of the brake noise test based on the third design result, wherein the third test result includes decibels of the brake noise and the probability of occurrence of the brake noise;

[0030] If the decibel of the braking noise in each of the third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging solution passes the test.

[0031] Optionally, the brake noise debugging device further includes a circulation module, which is used to:

[0032] If there is a first test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold in each first test result corresponding to any combination of any friction block chamfer and any friction block silencer, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

[0033] In a third aspect, the present invention also provides a brake noise debugging device, which includes a processor, a memory, and a brake noise debugging program stored in the memory and executable by the processor, wherein when the brake noise debugging program is executed by the processor, the steps of the brake noise debugging method as described above are implemented.

[0034] In a fourth aspect, the present invention further provides a readable storage medium, on which a brake noise debugging program is stored, wherein when the brake noise debugging program is executed by a processor, the steps of the brake noise debugging method as described above are implemented.

[0035] In the present invention, parameter fitting is performed on the values ​​of each test factor, the decibel of braking noise and the probability of occurrence of braking noise to determine each test factor strongly correlated with braking noise; the values ​​of each test factor strongly correlated with braking noise are adjusted, and a fractional factorial design is performed based on the adjusted values ​​of each test factor strongly correlated with braking noise, the form of the friction block chamfer test factor and the form of the friction block silencer test factor to obtain a first design result; each first test result of a braking noise test based on the first design result is obtained, wherein the first test result includes the decibel of braking noise and the probability of occurrence of braking noise; if the decibel of braking noise in each first test result corresponding to any combination of a friction block chamfer test factor and any friction block silencer test factor is less than a first threshold value and the probability of occurrence of braking noise is less than a second threshold value, then a braking noise debugging plan is determined based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of a friction block chamfer and any friction block silencer. Through the present invention, various test factors strongly correlated with brake noise are determined, and brake noise tests are carried out in the form of friction block chamfer test factors and friction block silencer plate test factors. A judgment is made based on the test results. If the test results meet the requirements, a brake noise debugging plan is determined based on the values ​​of various test factors corresponding to the test results that meet the requirements. This reduces the situation where the test results have large fluctuations and a high probability of not meeting the requirements due to random selection of devices to participate in the test, improves the low efficiency of formulating brake noise debugging plans and the reliability of the formulated plans, and solves the problems of low efficiency and poor reliability of formulated brake noise debugging plans currently. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the hardware structure of the brake noise debugging device involved in the embodiment of the present invention;

[0037] Figure 2 A schematic diagram of a flow chart of an embodiment of a brake noise debugging method of the present invention;

[0038] Figure 3 A schematic diagram of a first design result and a first test result of an embodiment of a brake noise debugging method of the present invention;

[0039] Figure 4 A schematic diagram of a second design result and a second test result of an embodiment of a brake noise debugging method of the present invention;

[0040] Figure 5 A schematic diagram of a third design result and a third test result of an embodiment of a brake noise debugging method of the present invention;

[0041] Figure 6 This is a functional module diagram of an embodiment of a brake noise debugging device of the present invention.

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0044] In a first aspect, an embodiment of the present invention provides a brake noise debugging device, which may be a device having a data processing function, such as a personal computer (PC), a notebook computer, or a server.

[0045] Reference Figure 1 , Figure 1 It is a schematic diagram of the hardware structure of the brake noise debugging device involved in the embodiment of the present invention. In the embodiment of the present invention, the brake noise debugging device may include a processor 1001 (such as a central processing unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components; the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a wireless interface (such as wireless fidelity WIreless-FIdelity, WI-FI interface); the memory 1005 may be a high-speed random access memory (random access memory, RAM), or a stable memory (non-volatile memory), such as a disk storage, and the memory 1005 may optionally be a storage device independent of the aforementioned processor 1001. Those skilled in the art will understand that Figure 1 The hardware structure shown in the figure does not constitute a limitation of the present invention, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0046] Continue to refer to Figure 1 , Figure 1 The memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a brake noise debugging program. The processor 1001 may call the brake noise debugging program stored in the memory 1005 and execute the brake noise debugging method provided in the embodiment of the present invention.

[0047] In a second aspect, an embodiment of the present invention provides a brake noise debugging method.

[0048] In one embodiment, referring to Figure 2 , Figure 2 FIG. 1 is a flow chart of an embodiment of a brake noise debugging method of the present invention. Figure 2 As shown, the brake noise debugging method includes:

[0049] Step S10, performing parameter fitting on the values ​​of each test factor, the decibel of the braking noise and the probability of occurrence of the braking noise, and determining each test factor that is strongly correlated with the braking noise;

[0050] In this embodiment, the values ​​of each test factor are subjected to full factorial test design to obtain multiple groups of test conditions, and the decibel of brake noise and the probability of occurrence of brake noise obtained by the brake noise test based on the multiple groups of test conditions are obtained respectively. The values ​​of each test factor are subjected to parameter fitting with the decibel of brake noise and the probability of occurrence of brake noise by Minitab software, and based on the parameter fitting results, each test factor strongly correlated with brake noise is determined.

[0051] Step S20, adjusting the values ​​of each test factor strongly related to the brake noise, performing a partial factorial design based on the adjusted values ​​of each test factor strongly related to the brake noise, the form of the friction block chamfer test factor, and the form of the friction block silencer test factor, to obtain a first design result;

[0052] In this embodiment, after determining each test factor strongly related to the braking noise, the values ​​of each test factor strongly related to the braking noise are adjusted according to the correlation between each test factor strongly related to the braking noise and the decibel of the braking noise and the probability of occurrence of the braking noise. If each test factor strongly related to the braking noise is positively correlated with the decibel of the braking noise and the probability of occurrence of the braking noise, the values ​​of each test factor strongly related to the braking noise are reduced; if each test factor strongly related to the braking noise is negatively correlated with the decibel of the braking noise and the probability of occurrence of the braking noise, the values ​​of each test factor strongly related to the braking noise are increased.

[0053] Based on the adjusted values ​​of each test factor strongly related to brake noise, the form of friction pad chamfer test factor, and the form of friction pad muffler test factor, a partial factorial design was performed to obtain the first design result. Specifically, refer to Figure 3 , Figure 3 Schematic diagram of the first design result and the first test result of an embodiment of the brake noise debugging method of the present invention. Figure 3As shown in the figure, the test factors strongly related to brake noise include friction pad compressibility A and brake disc natural frequency B. Based on the adjusted maximum and minimum values ​​of friction pad compressibility A, the maximum and minimum values ​​of brake disc natural frequency B, two friction pad chamfer test factors, and two friction pad muffler test factors, a fractional factorial design was performed to obtain the first design result, i.e., 8 groups of test conditions. Among them, the fractional factorial design only analyzes and examines the effects of some factors and the interaction effects between some factors.

[0054] Step S30, obtaining first test results of a brake noise test based on the first design result, wherein the first test results include decibels of brake noise and a probability of occurrence of brake noise;

[0055] In this embodiment, continue to refer to Figure 3 , obtaining first test results of the brake noise test based on the first design result, i.e., 8 groups of test conditions, i.e., 8 first test results, wherein each first test result includes the decibel of the brake noise corresponding to the group of test conditions and the probability of occurrence of the brake noise.

[0056] Step S40: If the decibels of the braking noise in each first test result corresponding to any combination of the friction block chamfer test factor and any combination of the friction block silencer plate test factor are less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, then the braking noise debugging plan is determined based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of the friction block chamfer and any combination of the friction block silencer plate.

[0057] In this embodiment, taking the forms of friction block chamfer test factors being R-type chamfer and J-type chamfer, and the forms of friction block silencer test factors being MS180351510-28 and MS180351510-24 as examples, if the decibels of the braking noise in each first test result corresponding to the combination of the friction block J-type chamfer and the friction block silencer in the form of MS180351510-28 are both less than the first threshold and the probability of occurrence of the braking noise is both less than the second threshold, then the braking noise debugging plan is determined based on the values ​​of each test factor corresponding to each first test result corresponding to the combination of the friction block J-type chamfer and the friction block silencer in the form of MS180351510-28.

[0058] Specifically, the decibel of the braking noise obtained in the braking noise test conducted when the friction block J-shaped chamfer and the friction block silencer MS180351510-28 form are at the lowest value of the friction block compressibility and the lowest value of the brake disc natural frequency is less than the first threshold value, and the probability of the occurrence of the braking noise is less than the second threshold value; the decibel of the braking noise obtained in the braking noise test conducted when the friction block J-shaped chamfer and the friction block silencer MS180351510-28 form are at the lowest value of the friction block compressibility and the highest value of the brake disc natural frequency is less than the first threshold value, and the probability of the occurrence of the braking noise is less than the second threshold value. The decibel of the braking noise obtained from the braking noise test of the friction block J-shaped chamfer and the friction block muffler MS180351510-28 in the form of the highest friction block compressibility and the lowest brake disc natural frequency is less than the first threshold value, and the probability of the occurrence of the braking noise is less than the second threshold value; The decibel of the braking noise obtained from the braking noise test of the friction block J-shaped chamfer and the friction block muffler MS180351510-28 in the form of the highest friction block compressibility and the highest brake disc natural frequency is less than the first threshold value, and the probability of the occurrence of the braking noise is less than the second threshold value. The various test factors corresponding to the various first test results corresponding to the friction block J-shaped chamfer and the friction block muffler MS180351510-28 include the friction block J-shaped chamfer, the friction block muffler MS180351510-28 form, the lowest and highest values ​​of the friction block compressibility, and the lowest and highest values ​​of the brake disc natural frequency. The brake noise debugging plan is determined based on the J-shaped chamfer of the friction pad, the MS180351510-28 form of the friction pad silencer, the minimum and maximum values ​​of the friction pad compressibility, and the minimum and maximum values ​​of the brake disc natural frequency.

[0059] In this embodiment, parameter fitting is performed on the values ​​of each test factor, the decibel of braking noise and the probability of occurrence of braking noise to determine each test factor strongly correlated with braking noise; the values ​​of each test factor strongly correlated with braking noise are adjusted, and a fractional factorial design is performed based on the adjusted values ​​of each test factor strongly correlated with braking noise, the form of the friction block chamfer test factor and the form of the friction block silencer test factor to obtain a first design result; each first test result of a braking noise test based on the first design result is obtained, wherein the first test result includes the decibel of braking noise and the probability of occurrence of braking noise; if the decibel of braking noise in each first test result corresponding to any combination of friction block chamfer test factor and any friction block silencer test factor is less than a first threshold value and the probability of occurrence of braking noise is less than a second threshold value, then a braking noise debugging plan is determined based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of friction block chamfer and any friction block silencer. Through this embodiment, various test factors that are strongly correlated with brake noise are determined, and brake noise tests are carried out in the form of friction block chamfer test factors and friction block silencer plate test factors. A judgment is made based on the test results. If the test results meet the requirements, a brake noise debugging plan is determined based on the values ​​of various test factors corresponding to the test results that meet the requirements. This reduces the situation where the test results have large fluctuations and a high probability of not meeting the requirements due to random selection of devices to participate in the test, improves the low efficiency of formulating brake noise debugging plans and the reliability of the formulated plans, and solves the current problems of low efficiency and poor reliability of formulated brake noise debugging plans.

[0060] Furthermore, in one embodiment, before step S10, the following steps are included:

[0061] Based on the values ​​of each experimental factor, a full factorial experimental design is performed to obtain the second design result;

[0062] Obtain each second test result of the brake noise test based on the second design result, wherein the second test result includes decibels of the brake noise and a probability of occurrence of the brake noise.

[0063] In this embodiment, the controllable parameters in the brake noise debugging are identified as test factors, wherein the test factors include the friction block compressibility, the brake disc natural frequency, the brake caliper bracket natural frequency and the brake caliper body natural frequency. Based on the highest and lowest values ​​of each test factor, a 2-level 2-center point full factorial test design is performed to obtain the second design result. Among them, factorial design is also called full factorial experimental design, which is to comprehensively combine all levels of all experimental factors involved in the experiment to form different experimental conditions, and conduct two or more independent repeated experiments under each experimental condition.

[0064] Each second test result of the brake noise test based on the second design result is obtained, wherein each second test result includes decibels of the brake noise and a probability of occurrence of the brake noise.

[0065] Specifically, refer to Figure 4 , Figure 4 Schematic diagram of the second design result and the second test result of the first embodiment of the brake noise debugging method of the present invention. Figure 4 As shown, a 2-level 2-center-point full factorial experimental design is performed based on the highest and lowest values ​​of the friction block compressibility A, the highest and lowest values ​​of the brake disc natural frequency B, the highest and lowest values ​​of the brake caliper bracket natural frequency C, and the highest and lowest values ​​of the brake caliper body natural frequency D, to obtain the second design result, that is, 18 groups of test conditions. Then, 18 second test results of the brake noise test based on the 18 groups of test conditions are obtained, wherein each second test result includes the decibel of the corresponding brake noise under the group of test conditions and the probability of occurrence of the brake noise.

[0066] Furthermore, in one embodiment, after step S30, the following steps are included:

[0067] If there is a first test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold in each first test result corresponding to any combination of any friction block chamfer and any friction block silencer, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

[0068] In this embodiment, taking the forms of friction block chamfer test factors being R-type chamfer and J-type chamfer, and the forms of friction block silencer test factors being MS180351510-28 and MS180351510-24 as examples, if there is a first test result in which the decibel of braking noise is greater than or equal to a threshold and / or the probability of occurrence of braking noise is greater than or equal to a threshold in each first test result corresponding to the combination of the friction block J-type chamfer and the friction block silencer MS180351510-28, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

[0069] Furthermore, in one embodiment, after step S40, the following steps are included:

[0070] Based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme, a full factorial experimental design is performed to obtain the third design result;

[0071] Acquire each third test result of the brake noise test based on the third design result, wherein the third test result includes decibels of the brake noise and the probability of occurrence of the brake noise;

[0072] If the decibel of the braking noise in each of the third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging solution passes the test.

[0073] In this embodiment, a full factorial experimental design is performed based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme to obtain the third design result. Figure 5 , Figure 5 Schematic diagram of the third design result and the third test result of the first embodiment of the brake noise debugging method of the present invention. Figure 5 As shown, the experimental factors that are strongly correlated with the braking noise in the determined braking noise debugging scheme are the friction block compressibility A and the brake disc natural frequency B. Based on the highest and lowest values ​​of the friction block compressibility A and the highest and lowest values ​​of the brake disc natural frequency B, a 2-level 2-center point full factorial experimental design is performed to obtain the third design result, i.e., 6 groups of experimental conditions.

[0074] Obtain the third test results of the brake noise test based on the third design result, i.e., 6 sets of test conditions, i.e., 6 third test results, wherein each third test result includes the decibel of the corresponding brake noise under the set of test conditions and the probability of occurrence of the brake noise, and the parts for the brake noise test are selected from a batch of parts produced according to the formal process.

[0075] If the decibel of the braking noise in each third test result is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging plan passes the test, that is, if the decibel of the braking noise in the 6 third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging plan passes the test.

[0076] Further, in one embodiment, after the step of obtaining each third test result of the brake noise test based on the third design result, the method further comprises:

[0077] If there is a third test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold among the third test results, the steps of adjusting the values ​​of each test factor strongly correlated with braking noise, performing partial factorial design based on the adjusted values ​​of each test factor strongly correlated with braking noise, the value of the friction block chamfer test factor and the value of the friction block muffler test factor are performed to obtain the first design result.

[0078] In this embodiment, if among the six third test results obtained, there is a third test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold, then the determined braking noise debugging plan fails the test, and the steps of adjusting the values ​​of each test factor strongly related to braking noise are executed, and performing partial factorial design based on the adjusted values ​​of each test factor strongly related to braking noise, the value of the friction block chamfer test factor, and the value of the friction block silencer test factor are performed to obtain the first design result.

[0079] In a third aspect, an embodiment of the present invention further provides a brake noise debugging device.

[0080] In one embodiment, referring to Figure 6 , Figure 6 This is a functional module diagram of an embodiment of a brake noise debugging device of the present invention. Figure 6 As shown, the brake noise debugging device comprises:

[0081] A fitting module 10 is used to perform parameter fitting on the values ​​of each test factor, the decibel of the braking noise and the probability of occurrence of the braking noise, and determine each test factor that is strongly correlated with the braking noise;

[0082] The design module 20 is used to adjust the values ​​of each test factor strongly related to the brake noise, and perform a partial factorial design based on the adjusted values ​​of each test factor strongly related to the brake noise, the form of the friction block chamfer test factor, and the form of the friction block muffler test factor to obtain a first design result;

[0083] An acquisition module 30, configured to acquire first test results of a brake noise test based on the first design result, wherein the first test results include decibels of the brake noise and a probability of occurrence of the brake noise;

[0084] A determination module 40 is used to determine a brake noise debugging plan based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of a friction block chamfer and any friction block silencer if the decibels of the brake noise in each first test result corresponding to the combination of any friction block chamfer and any friction block silencer are less than a first threshold and the probability of occurrence of the brake noise is less than a second threshold.

[0085] Furthermore, in one embodiment, the design module 20 is also used to:

[0086] Based on the values ​​of each experimental factor, a full factorial experimental design is performed to obtain the second design result;

[0087] The acquisition module 30 is further used to: acquire each second test result of the braking noise test based on the second design result, wherein the second test result includes the decibel of the braking noise and the probability of occurrence of the braking noise.

[0088] Furthermore, in one embodiment, the brake noise debugging device further includes a circulation module, which is used to:

[0089] If there is a first test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold in each first test result corresponding to any combination of any friction block chamfer and any friction block silencer, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

[0090] Furthermore, in one embodiment, the brake noise debugging device further includes a detection module, which is used to:

[0091] Based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme, a full factorial experimental design is performed to obtain the third design result;

[0092] Acquire each third test result of the brake noise test based on the third design result, wherein the third test result includes decibels of the brake noise and the probability of occurrence of the brake noise;

[0093] If the decibel of the braking noise in each of the third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging solution passes the test.

[0094] Furthermore, in one embodiment, the circulation module is further used for:

[0095] If there is a third test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold among the third test results, the steps of adjusting the values ​​of each test factor strongly correlated with braking noise, performing partial factorial design based on the adjusted values ​​of each test factor strongly correlated with braking noise, the value of the friction block chamfer test factor and the value of the friction block muffler test factor are performed to obtain the first design result.

[0096] Among them, the functional implementation of each module in the above-mentioned brake noise debugging device corresponds to the various steps in the above-mentioned brake noise debugging method embodiment, and its functions and implementation processes are no longer repeated here one by one.

[0097] In a fourth aspect, an embodiment of the present invention further provides a readable storage medium.

[0098] The readable storage medium of the present invention stores a brake noise debugging program, wherein when the brake noise debugging program is executed by a processor, the steps of the brake noise debugging method described above are implemented.

[0099] Among them, the method implemented when the brake noise debugging program is executed can refer to the various embodiments of the brake noise debugging method of the present invention, and will not be repeated here.

[0100] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0101] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0102] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present invention.

[0103] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A brake noise debugging method, characterized in that: The brake noise debugging method comprises: Perform parameter fitting on the values ​​of each test factor, the decibel of brake noise and the probability of occurrence of brake noise, and determine each test factor that is strongly correlated with brake noise; Adjust the values ​​of each test factor strongly related to the brake noise, perform a partial factorial design based on the adjusted values ​​of each test factor strongly related to the brake noise, the form of the friction block chamfer test factor, and the form of the friction block muffler test factor, and obtain a first design result; Acquire each first test result of a brake noise test based on the first design result, wherein the first test result includes decibels of brake noise and a probability of occurrence of brake noise; If the decibel of the brake noise in each first test result corresponding to the combination of any friction block chamfer test factor and any friction block muffler test factor is less than the first threshold value and the probability of occurrence of the brake noise is less than the second threshold value, then the brake noise debugging plan is determined based on the values ​​of each test factor corresponding to each first test result corresponding to the combination of any friction block chamfer and any friction block muffler; Based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme, a full factorial experimental design is performed to obtain the third design result; Acquire each third test result of the brake noise test based on the third design result, wherein the third test result includes decibels of the brake noise and the probability of occurrence of the brake noise; If the decibel of the braking noise in each of the third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging solution passes the test; After the step of obtaining each third test result of the brake noise test based on the third design result, the method includes: If there is a third test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold among the third test results, the steps of adjusting the values ​​of each test factor strongly correlated with braking noise, performing partial factorial design based on the adjusted values ​​of each test factor strongly correlated with braking noise, the value of the friction block chamfer test factor and the value of the friction block muffler test factor are performed to obtain the first design result.

2. The brake noise debugging method according to claim 1, characterized in that: Before the step of performing parameter fitting on the values ​​of each test factor and the decibel of the braking noise and the occurrence probability of the braking noise to determine each test factor strongly correlated with the braking noise, the method includes: Based on the values ​​of each experimental factor, a full factorial experimental design is performed to obtain the second design result; Obtain each second test result of the brake noise test based on the second design result, wherein the second test result includes decibels of the brake noise and a probability of occurrence of the brake noise.

3. The brake noise debugging method according to claim 1, characterized in that: After the step of obtaining each first test result of the brake noise test based on the first design result, the method further comprises: If there is a first test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold in each first test result corresponding to any combination of any friction block chamfer and any friction block silencer, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

4. A brake noise debugging device, characterized in that: The brake noise debugging device comprises: A fitting module is used to perform parameter fitting on the values ​​of various test factors, the decibel of the braking noise and the probability of occurrence of the braking noise, and determine various test factors that are strongly correlated with the braking noise; A design module, used for adjusting the values ​​of various test factors strongly related to the brake noise, performing a partial factorial design based on the adjusted values ​​of various test factors strongly related to the brake noise, the form of the friction block chamfer test factor, and the form of the friction block muffler test factor, to obtain a first design result; an acquisition module, configured to acquire first test results of a brake noise test based on the first design result, wherein the first test results include decibels of the brake noise and a probability of occurrence of the brake noise; A determination module, for determining a brake noise debugging plan based on the values ​​of each test factor corresponding to each first test result corresponding to any combination of a friction block chamfer and any combination of a friction block muffler, if the decibel of the brake noise in each first test result corresponding to any combination of a friction block chamfer and any combination of a friction block muffler is less than a first threshold and the probability of occurrence of the brake noise is less than a second threshold; Also included are detection modules for: Based on the values ​​of each test factor strongly related to the brake noise in the determined brake noise debugging scheme, a full factorial experimental design is performed to obtain the third design result; Acquire each third test result of the brake noise test based on the third design result, wherein the third test result includes decibels of the brake noise and the probability of occurrence of the brake noise; If the decibel of the braking noise in each of the third test results is less than the first threshold and the probability of occurrence of the braking noise is less than the second threshold, the determined braking noise debugging solution passes the test; Also includes loop modules for: If there is a third test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold among the third test results, the steps of adjusting the values ​​of each test factor strongly correlated with braking noise, performing partial factorial design based on the adjusted values ​​of each test factor strongly correlated with braking noise, the value of the friction block chamfer test factor and the value of the friction block muffler test factor are performed to obtain the first design result.

5. The brake noise debugging device according to claim 4, characterized in that: The brake noise debugging device also includes a circulation module, which is used for: If there is a first test result in which the decibel of braking noise is greater than or equal to the first threshold and / or the probability of occurrence of braking noise is greater than or equal to the second threshold in each first test result corresponding to any combination of any friction block chamfer and any friction block silencer, then a step of performing parameter fitting of the values ​​of each test factor with the decibel of braking noise and the probability of occurrence of braking noise is performed to determine each test factor that is strongly correlated with braking noise.

6. A brake noise debugging device, characterized in that: The brake noise debugging device comprises a processor, a memory, and a brake noise debugging program stored in the memory and executable by the processor, wherein when the brake noise debugging program is executed by the processor, the steps of the brake noise debugging method according to any one of claims 1 to 3 are implemented.

7. A readable storage medium, characterized in that: The readable storage medium stores a brake noise debugging program, wherein when the brake noise debugging program is executed by the processor, the steps of the brake noise debugging method according to any one of claims 1 to 3 are implemented.

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