Early warning method and device for wheel cracking and air leakage, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to a wheel cracking air leakage early warning method and device, a vehicle and a storage medium, and the method comprises the steps: carrying out wheel cracking early warning when a wheel actual strain value is greater than or equal to a wheel cracking strain reminding value and is greater than or equal to a wheel cracking strain critical value; storing the actual strain value of the wheel when the actual strain value of the wheel is smaller than a cracking strain critical value of the wheel, and generating corresponding predicted mileage data of the vehicle, so as to calculate sustainable mileage data of the vehicle according to a difference value between the predicted mileage data of the vehicle and the real-time mileage data of the vehicle; and further generating a vehicle sustainable driving mileage early warning prompt. Therefore, the problem that the driving safety risk is increased due to the fact that the failed wheel is maintained after the wheel is found to have the fault is solved, and the driving safety is guaranteed by monitoring the impact on the wheel in the driving process in real time and actively sending an inner rim cracking early warning prompt or sustainable driving mileage to a user when the wheel cracks.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method, device, vehicle, and storage medium for early warning of wheel cracking and air leakage. Background Art

[0002] As the only part of a vehicle that comes into contact with the ground, the wheel bears the entire vehicle's weight and is used to transmit various forces and torques. Therefore, it must have excellent safety features. The wheel consists of a tire, a hub, and its accessories, which together form a sealed cavity to carry the designed tire pressure. However, with the rapid development of vehicles, vehicle weight is increasing, tire flat rates are decreasing, and acceleration and driving speeds are increasing. The weight carried by the wheel hub and the impact it endures when driving over bumps, potholes, speed bumps, or on bad roads are increasing. As a result, the wheel hub rim is prone to cracking, which damages the wheel's sealed cavity, causing the wheel to lose a large amount of air pressure in a short period of time, resulting in wheel leakage and a high risk of safety accidents.

[0003] In the related art, for wheel air leakage caused by cracking of the wheel hub rim, the tire pressure is mainly monitored by the tire pressure monitoring system, and further manual inspection is performed after abnormal tire pressure is detected, or the wheel is inspected after visual detection of abnormal tire pressure.

[0004] However, the above-mentioned wheel leakage monitoring method is a passive monitoring method, which has a lag in the monitoring process. After a fault is found through manual inspection, the faulty wheel is repaired and replaced, thereby increasing the driving safety risk, which urgently needs to be solved. Summary of the Invention

[0005] The present application provides a wheel cracking and air leakage early warning method, device, vehicle and storage medium to solve the problem of repairing the faulty wheel after the wheel is found to be faulty, thereby increasing the risk of driving safety.

[0006] A first embodiment of the present application provides an early warning method for wheel cracking and air leakage, comprising the following steps:

[0007] Obtain the actual strain value of the vehicle's wheels;

[0008] If the actual wheel strain value is greater than or equal to the wheel cracking strain warning value, determining whether the actual wheel strain value is greater than or equal to the wheel cracking strain critical value;

[0009] If the actual wheel strain value is greater than or equal to the wheel cracking strain critical value, a wheel cracking warning is issued; otherwise, the actual wheel strain value is stored, and corresponding vehicle predicted mileage data is generated based on the actual wheel strain value. According to the difference between the vehicle predicted mileage data and the vehicle real-time mileage data, the vehicle sustainable mileage data is calculated, and a vehicle sustainable mileage warning reminder is generated based on the vehicle sustainable mileage data.

[0010] According to one embodiment of the present application, after obtaining the actual strain value of the wheel of the vehicle, the method further includes:

[0011] If the actual wheel strain value is less than the wheel cracking strain warning value, the actual wheel strain value is continuously monitored until the actual wheel strain value is monitored to be greater than or equal to the wheel cracking strain warning value.

[0012] According to one embodiment of the present application, after obtaining the actual strain value of the wheel of the vehicle, the method further includes:

[0013] Data preprocessing is performed on the actual wheel strain value, wherein the data preprocessing includes data cleaning, data standardization, and filtering processing on the actual wheel strain value.

[0014] According to one embodiment of the present application, generating a vehicle sustainable driving mileage warning reminder based on the vehicle sustainable driving mileage data includes:

[0015] Build a sustainable mileage warning model;

[0016] Based on the sustainable mileage warning reminder model, a wheel cracking warning reminder value is determined according to the vehicle sustainable mileage data, and a vehicle sustainable mileage warning reminder is performed according to the wheel cracking warning reminder value.

[0017] According to one embodiment of the present application, constructing a sustainable driving mileage warning reminder model includes:

[0018] Determine the critical value of wheel cracking strain when the wheel cracks;

[0019] performing impact tests on the wheel at various wheel impact energies, and recording the impact strain value of the wheel at each impact energy;

[0020] Generating corresponding vehicle sustainable mileage data based on the impact strain value of each wheel, and fitting the impact strain value of each wheel and the corresponding vehicle sustainable mileage data to obtain a mapping relationship between the impact strain value of each wheel and the corresponding vehicle sustainable mileage data;

[0021] A wheel cracking strain reminder value is determined based on the mapping relationship.

[0022] According to the wheel cracking and air leakage warning method of the embodiment of the present application, a wheel cracking warning is issued when the actual wheel strain value is greater than or equal to the wheel cracking strain warning value and greater than or equal to the wheel cracking strain critical value. When the actual wheel strain value is less than the wheel cracking strain critical value, the actual wheel strain value is stored and corresponding vehicle predicted mileage data is generated. The vehicle's sustainable mileage data is calculated based on the difference between the predicted mileage data and the vehicle's real-time mileage data, and a vehicle sustainable mileage warning is generated. This solves the problem of repairing a faulty wheel after it is discovered, thereby increasing driving safety risks. By real-time monitoring of the impacts applied to the wheel during driving, the user is proactively notified of inner rim cracking warnings or the sustainable mileage in the event of wheel cracking, thereby ensuring driving safety.

[0023] A second embodiment of the present application provides an early warning device for wheel cracking and air leakage, comprising:

[0024] An acquisition module is used to obtain actual strain values ​​of vehicle wheels;

[0025] a judgment module, configured to judge whether the actual wheel strain value is greater than or equal to the wheel cracking strain critical value if the actual wheel strain value is greater than or equal to the wheel cracking strain warning value;

[0026] A generation module is configured to issue a wheel cracking warning if the actual wheel strain value is greater than or equal to the wheel cracking strain critical value; otherwise, store the actual wheel strain value, and generate corresponding vehicle predicted mileage data based on the actual wheel strain value; calculate the vehicle sustainable mileage data based on the difference between the vehicle predicted mileage data and the vehicle real-time mileage data; and generate a vehicle sustainable mileage warning reminder based on the vehicle sustainable mileage data.

[0027] According to one embodiment of the present application, after obtaining the actual strain value of the wheel of the vehicle, the obtaining module further includes:

[0028] The monitoring unit is configured to continue monitoring the actual wheel strain value if the actual wheel strain value is less than the wheel cracking strain warning value until the actual wheel strain value is greater than or equal to the wheel cracking strain warning value.

[0029] According to one embodiment of the present application, after obtaining the actual strain value of the wheel of the vehicle, the obtaining module further includes:

[0030] A data processing unit is used to perform data preprocessing on the actual wheel strain value, wherein the data preprocessing includes data cleaning, data standardization, and filtering processing on the actual wheel strain value.

[0031] According to one embodiment of the present application, the generating module includes:

[0032] A construction unit for constructing a sustainable driving mileage warning and reminder model;

[0033] The reminder unit is used to determine a wheel cracking warning reminder value according to the vehicle sustainable mileage data based on the sustainable mileage warning reminder model, and to provide a vehicle sustainable mileage warning reminder according to the wheel cracking warning reminder value.

[0034] According to one embodiment of the present application, the construction unit includes:

[0035] A first determining subunit is used to determine a critical value of wheel cracking strain when the wheel cracks;

[0036] a recording subunit, configured to perform impact tests on the wheel at various wheel impact energies, and record the impact strain value of the wheel at each impact energy;

[0037] a fitting subunit, configured to generate corresponding vehicle sustainable mileage data based on the impact strain value of each wheel, and to fit the impact strain value of each wheel and the corresponding vehicle sustainable mileage data to obtain a mapping relationship between the impact strain value of each wheel and the corresponding vehicle sustainable mileage data;

[0038] The second determining subunit is configured to determine a wheel cracking strain reminder value based on the mapping relationship.

[0039] According to the wheel cracking and air leakage warning device of the embodiment of the present application, a wheel cracking warning is issued when the actual wheel strain value is greater than or equal to the wheel cracking strain warning value and greater than or equal to the wheel cracking strain critical value. When the actual wheel strain value is less than the wheel cracking strain critical value, the actual wheel strain value is stored and corresponding vehicle predicted mileage data is generated. The vehicle's sustainable mileage data is calculated based on the difference between the predicted mileage data and the vehicle's real-time mileage data, and a vehicle sustainable mileage warning is generated. This solves the problem of repairing a faulty wheel after it is discovered, which increases driving safety risks. By real-time monitoring of the impacts applied to the wheel during driving, the device proactively issues an inner rim cracking warning or a sustainable mileage warning to the user, ensuring driving safety.

[0040] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the early warning method for wheel cracking and air leakage as described in the above embodiment.

[0041] A fourth aspect of the present application provides a computer-readable storage medium storing computer instructions for causing the computer to execute the wheel cracking and air leakage warning method as described in the above embodiment.

[0042] A fifth aspect of the present application provides a computer program product, including a computer program, which is executed to implement the early warning method for wheel cracking and air leakage described in the above embodiment.

[0043] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0045] Figure 1 This is a flow chart of a method for early warning of wheel cracking and air leakage provided according to an embodiment of the present application;

[0046] Figure 2 This is a flow chart of a wheel inner rim crack prevention and control strategy and device according to one embodiment of the present application;

[0047] Figure 3 A schematic diagram of a wheel rim strain sensor, arrangement structure, and signal transmission according to an embodiment of the present application;

[0048] Figure 4 A schematic diagram of a wheel strain group bridge connection according to one embodiment of the present application;

[0049] Figure 5 This is an example diagram of a warning device for wheel cracking and air leakage according to an embodiment of the present application;

[0050] Figure 6 Schematic diagram of the structure of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0052] The following describes, with reference to the accompanying drawings, a wheel cracking and air leakage warning method, device, vehicle, and storage medium according to an embodiment of the present application. To address the issue mentioned in the background art above, where repairing a faulty wheel after it is discovered increases driving safety risks, the present application provides a wheel cracking and air leakage warning method. In this method, a wheel cracking warning is issued when the actual wheel strain value is greater than or equal to the wheel cracking strain warning value and greater than or equal to the wheel cracking strain threshold value. When the actual wheel strain value is less than the wheel cracking strain threshold value, the actual wheel strain value is stored, and corresponding vehicle predicted mileage data is generated. The vehicle's sustainable mileage data is calculated based on the difference between the predicted mileage data and the vehicle's real-time mileage data, and a vehicle sustainable mileage warning is generated. This solves the problem of repairing a faulty wheel after it is discovered, which increases driving safety risks. By monitoring the impacts to the wheel during driving in real time, the method proactively issues an inner rim cracking warning or a continuous mileage warning in the event of wheel cracking to the user, ensuring driving safety.

[0053] Specifically, Figure 1 A flowchart of a method for early warning of wheel cracking and air leakage provided in an embodiment of the present application.

[0054] like Figure 1 As shown, the early warning method for wheel cracking and air leakage includes the following steps:

[0055] In step S101 , actual strain values ​​of wheels of the vehicle are obtained.

[0056] According to one embodiment of the present application, after obtaining the actual strain value of the vehicle wheel, it also includes: performing data preprocessing on the actual strain value of the wheel, wherein the data preprocessing includes data cleaning, data standardization, and filtering processing on the actual strain value of the wheel.

[0057] Specifically, the inner rim of the wheel will produce a certain amount of deformation after the wheel hub is impacted. When the deformation reaches a certain level, it will crack (the deformation is called strain). Therefore, the strain value when the inner rim cracks can be expressed as the critical value of wheel cracking strain ε 临界值 In the embodiment of the present application, the cracking of the inner wheel rim can be divided into two cases. One is that the impact load on the wheel hub is too large, and the strain value of the inner wheel rim directly reaches the critical value of wheel cracking strain ε 临界值Cracking occurs. Another case is that after the wheel hub is impacted, the strain value of the inner rim does not reach the critical value of wheel cracking strain ε 临界值 During the subsequent driving process, due to the wheel hub being out of round, the deformation of the deformed part continues to increase or is impacted again, causing the inner rim deformation to eventually reach the critical value of wheel cracking strain ε 临界值 , which in turn causes the inner wheel rim to crack. Therefore, the purpose of the embodiment of the present application is to monitor the entire vehicle driving process in real time. When the wheel hub is impacted and causes the inner wheel rim to crack, it can actively issue a reminder for repair and replacement. When the wheel hub is impacted but no cracks occur, it can also actively warn how many miles will cause the inner wheel rim to crack (the sustainable driving mileage when the risk of cracking is about to occur). When issuing a warning, the embodiment of the present application issues a warning through a constructed sustainable driving mileage warning reminder model (alarm module S9).

[0058] According to one embodiment of the present application, a vehicle sustainable mileage warning reminder is generated based on the vehicle sustainable mileage data, including: constructing a sustainable mileage warning reminder model; based on the sustainable mileage warning reminder model, determining a wheel cracking warning reminder value according to the vehicle sustainable mileage data, and performing a vehicle sustainable mileage warning reminder according to the wheel cracking warning reminder value.

[0059] According to one embodiment of the present application, a sustainable mileage warning reminder model is constructed, including: determining a critical value of wheel cracking strain when the wheel cracks; performing impact tests on the wheel with multiple wheel impact energies, and recording the impact strain value of the wheel under each impact energy; generating corresponding vehicle sustainable mileage data based on the impact strain value of each wheel, and fitting the impact strain value of each wheel and the corresponding vehicle sustainable mileage data to obtain a mapping relationship between the impact strain value of each wheel and the corresponding vehicle sustainable mileage data; and determining a wheel cracking strain reminder value based on the mapping relationship.

[0060] Specifically, before performing a vehicle sustainable mileage warning reminder, the embodiment of the present application needs to construct a sustainable mileage warning reminder model, so as to determine the wheel cracking warning reminder value according to the vehicle sustainable mileage data based on the sustainable mileage warning reminder model, and perform a vehicle sustainable mileage warning reminder according to the wheel cracking warning reminder value.

[0061] Specifically, in the process of building the sustainable mileage warning model, first, the critical value of wheel cracking strain ε when the inner wheel rim cracks due to impact is determined by bench testing. 临界值; Then, the wheel is impact tested with various wheel impact energies, and the impact strain value of the wheel under each impact energy is recorded. That is to say, the wheel is impact tested with gradually decreasing impact energy, and the impact strain values ​​ε1, ε2, ε3...ε of the inner wheel rim when the wheel is impacted with different impact energies are recorded. i Then, durability tests were conducted on wheels with different impact strain values, and the vehicle sustainable mileage data S1, S2, S3...S until the inner wheel rim cracked were recorded respectively. i ; Next, the impact strain value of each wheel is fitted with the corresponding vehicle sustainable mileage data to obtain a mapping relationship between the impact strain value ε of each wheel and the corresponding vehicle sustainable mileage data S. Based on this mapping relationship, the inner wheel rim strain value corresponding to the inner wheel rim cracking after driving 10,000 kilometers is calculated, and this inner wheel rim strain value is set as the wheel cracking strain warning value ε 提醒 , thus taking the wheel cracking strain reminder value ε 提醒 The limit value serves as a reminder to the user.

[0062] It should be noted that, since the mileage required for the wheel to crack is longer when the strain value of the inner wheel rim is smaller, constant reminders will cause fatigue in the user and cause the user to ignore the reminder. Therefore, the mileage required for the reminder to continue driving should not be too long. The reminder mileage can be set according to needs and is not specifically limited here.

[0063] Specifically, if Figure 2As shown, the modules involved in the early warning process of the embodiment of the present application mainly include a strain monitoring module S1, a signal transmitting module S2, a signal receiving module S3, a signal processing module S4, a first judgment module S5 and a second judgment module S6, a storage module S7, a calculation module S8 and an alarm module S9, wherein the strain monitoring module S1 composed of strain sensors arranged circumferentially on the inner rim of the wheel is used to monitor the inner rim strain value ε of the wheel during vehicle driving in real time, that is, the actual strain value ε of the wheel; the signal transmitting module S2 is used to send the strain signal (actual strain value ε of the wheel) monitored by the strain monitoring module S1 to the signal receiving module S3 in a wireless transmission manner during the wheel driving process; the signal receiving module S3 receives the actual strain value ε of the wheel sent by the signal transmitting module S2, and transmits the actual strain value ε of the wheel to the signal processing module S9. The processing module S4 and the signal processing module S4 transmit the strain signal of the processed actual wheel strain value ε to the first judgment module S5; the first judgment module S5 receives the actual wheel strain value ε processed by the signal processing module S4, and judges the wheel cracking reminder corresponding to the actual wheel strain value ε; the second judgment module S6 receives the actual wheel strain value ε sent by the first judgment module S5, and is used to judge the vehicle sustainable mileage data corresponding to the actual wheel strain value ε; the storage module S7 is used to store different strain values ​​of the inner wheel rim and the mileage of continuing to travel until cracking; the calculation module S8 is used to calculate the continuous mileage that can be traveled when the inner wheel rim cracks; the alarm module S9 is used to generate a vehicle sustainable mileage warning reminder based on the vehicle sustainable mileage data, which will be explained in detail in conjunction with specific embodiments below.

[0064] First, the strain monitoring module S1 monitors and obtains the actual wheel strain value ε during vehicle driving in real time, and sends the obtained wheel actual strain value ε to the signal receiving module S3 through the signal transmitting module S2 in a wireless transmission manner.

[0065] Secondly, after the signal receiving module S3 receives the actual wheel strain value ε sent by the signal transmitting module S2, the actual wheel strain value ε is sent to the signal processing module S4, and the signal processing module S4 performs data preprocessing on the received actual wheel strain value ε, wherein the data preprocessing includes data cleaning, data standardization, and filtering of the actual wheel strain value. For example, in the data cleaning stage, the actual wheel strain value ε is detected for missing values ​​and outliers (3σ principle or machine learning method). If there are missing values, the missing values ​​can be deleted, filled with the mean / median, or interpolated. The data can be processed by filling or other methods. If there are outliers, they can be corrected, deleted, or retained and marked. In the data standardization stage, the actual wheel strain value ε can be standardized or normalized to a unified scale to facilitate subsequent analysis. In the filtering processing stage, filtering can be performed based on the collected actual wheel strain value ε to remove noise interference. Commonly used methods include low-pass filters, high-pass filters, band-pass filters, etc. The appropriate filter type and parameters are selected according to actual needs. The above methods are only illustrative and can be selected according to actual application conditions. No specific limitations are made here.

[0066] Finally, the actual wheel strain value ε processed by the signal processing module S4 is sent to the first judgment module S5, so as to judge the wheel cracking reminder corresponding to the actual wheel strain value ε based on the first judgment module S5, such as whether the actual wheel strain value ε is greater than or equal to the set wheel cracking strain reminder value ε corresponding to the occurrence of inner wheel rim cracking. 提醒 , based on the actual wheel strain value ε and the wheel cracking strain warning value ε 提醒 The difference is used to judge the subsequent vehicle sustainable mileage data.

[0067] In step S102 , if the actual wheel strain value is greater than or equal to the wheel cracking strain warning value, it is determined whether the actual wheel strain value is greater than or equal to the wheel cracking strain critical value.

[0068] According to one embodiment of the present application, after obtaining the actual strain value of the vehicle wheel, it also includes: if the actual strain value of the wheel is less than the wheel cracking strain reminder value, continue to monitor the actual strain value of the wheel until the monitored actual strain value of the wheel is greater than or equal to the wheel cracking strain reminder value.

[0069] Specifically, if the actual wheel strain value ε is greater than or equal to the wheel cracking strain warning value ε 提醒 , that is, ε≥ε 提醒, it means that the inner wheel rim has already deformed to a certain extent, and based on the current deformation, cracking will occur after the vehicle has traveled a certain mileage. Therefore, it is necessary to further perform strain reminder for wheel cracking. The first judgment module S5 sends the actual wheel strain value ε to the second judgment module S6. When the second judgment module S6 receives the actual wheel strain value ε, it further determines whether the actual wheel strain value ε is greater than or equal to the set wheel cracking strain threshold ε corresponding to the occurrence of inner wheel rim cracking. 临界值 , that is, ε≥ε 临界值 , based on the actual wheel strain value ε and the wheel cracking strain critical value ε 临界值 The difference between the two values ​​determines whether an early warning is needed and whether the vehicle's sustainable mileage warning is needed.

[0070] Furthermore, if the actual wheel strain value ε is less than the wheel cracking strain warning value ε 提醒 , that is, ε<

[0071] ε 提醒 At this time, it means that the impact received by the wheel is small, the deformation of the inner wheel rim is small, and there is no driving danger. Therefore, the user can be given a strain reminder for wheel cracking without sending a strain reminder. The actual wheel strain value ε is continuously monitored until the actual wheel strain value ε is greater than or equal to the wheel cracking strain reminder value ε. 提醒 When the vehicle reaches the limit of mileage, further warnings will be issued.

[0072] In step S103, if the actual wheel strain value is greater than or equal to the wheel cracking strain critical value, a wheel cracking warning is issued; otherwise, the actual wheel strain value is stored, and corresponding vehicle predicted mileage data is generated based on the actual wheel strain value. According to the difference between the vehicle predicted mileage data and the vehicle real-time mileage data, the vehicle sustainable mileage data is calculated, and a vehicle sustainable mileage warning reminder is generated based on the vehicle sustainable mileage data.

[0073] Specifically, if the actual wheel strain value ε is greater than or equal to the wheel cracking strain critical value ε 临界值 , that is, ε≥ε 临界值 , it means that the impact received by the vehicle is very large at this time, and the deformation of the inner wheel rim is not enough to support the vehicle to continue driving. Continuing to drive will pose a traffic safety risk. At this time, the second judgment module S6 sends the actual wheel strain value ε to the sustainable driving range warning reminder model (alarm module S9), and determines the wheel cracking warning reminder value. Based on the alarm module S9, the vehicle sustainable driving range warning reminder is issued according to the wheel cracking warning reminder value, that is, the inner wheel rim cracking alarm is issued.

[0074] Optionally, if the actual wheel strain value ε is less than the wheel cracking strain critical value ε 临界值, that is, ε<

[0075] ε 临界值 , it means that the impact received by the vehicle is large, but the deformation of the inner wheel rim can still support the vehicle to continue traveling for a certain distance. Therefore, when the actual wheel strain value ε is less than the critical value of wheel cracking strain ε 临界值 When the wheel is cracked, the second judgment module S6 sends the actual wheel strain value ε to the storage module S7. The storage module S7 matches the corresponding vehicle predicted mileage data based on the received actual wheel strain value ε according to the pre-stored mapping relationship between the actual wheel strain value ε of each wheel and the corresponding vehicle sustainable mileage data S, and sends the vehicle predicted mileage data to the calculation module S8. The calculation module S8 calculates the difference between the vehicle predicted mileage data and the vehicle real-time mileage data based on the received vehicle predicted mileage data and the vehicle real-time mileage data read from the CAN (Controller Area Network) bus, obtains the vehicle sustainable mileage data when the inner wheel rim cracks occur, and sends the vehicle sustainable mileage data to the sustainable mileage warning reminder model (alarm module S9), and determines the wheel cracking warning reminder value, so as to issue a vehicle sustainable mileage warning reminder according to the wheel cracking warning reminder value, that is, to issue a wheel inner rim cracking alarm.

[0076] The following is a detailed description of the wheel rim strain sensor, arrangement structure, and signal transmission method involved in the embodiments of the present application:

[0077] like Figure 3 As shown, it mainly includes a wheel body 1; a wire 2 between an external power supply and a power supply coil; an external power supply 3; a power supply coil 4 (fixed on a component such as a steering knuckle that does not have rotational motion); an induction coil 5 (fixed on the inner wall of the wheel); a strain gauge power supply wire 6; a connecting wire 7 between the strain gauge signal output interface and the signal transmission module; a groove 8 (machined on the inner rim of the wheel); a strain gauge 9 (pasted in the rim groove); a connecting wire 10 between the induction coil and the signal transmission module (module power supply wire); and a strain signal wireless transmission module 11.

[0078] Among them, the full bridge is usually used to measure physical quantities such as bending and stretching. Multiple strain gauges connected in series can improve the sensitivity of measurement. The more strain gauges are connected in series, the more complicated it is to consider issues such as resistance matching and temperature compensation. In the embodiment of the present application, 60 strain gauges are evenly arranged around the circumference of the inner rim of the wheel. Each strain gauge has four terminals, namely Vex+ and Vex- power supply terminals for applying excitation voltage and Vo+ and Vo- signal terminals for measuring voltage changes caused by strain. The full bridge circuit requires four resistor arms (R1, R2, R3, R4). Each bridge arm is composed of 15 strain gauges connected in series to amplify the signal and improve sensitivity. The Vex+ and Vex- power supply terminals in the strain circuit are connected to Figure 3 The strain gauge power supply wire 6 is connected to the induction coil 5, and the voltage generated by the induction coil 5 is used to power it. The Vo+ and Vo- signal terminals in the strain gauge circuit are connected to the induction coil 5, and the voltage generated by the induction coil 5 is used to power it. Figure 3 The connecting wire 7 between the strain gauge signal output interface and the signal transmitting module is connected to the strain signal wireless transmitting module 11 to transmit the signal in a wireless form. The wheel strain group bridge wire involved in the embodiment of the present application is as follows: Figure 4 shown.

[0079] In summary, based on the discussion of the above specific embodiments, the embodiments of the present application can achieve the following beneficial effects:

[0080] (1) The embodiment of the present application can monitor the impact of the wheel hub in real time during driving, and can proactively issue a warning to the user regarding cracking of the inner wheel rim or the sustainable driving mileage when the inner wheel rim cracks, proactively preventing safety accidents caused by air leakage due to cracking of the inner wheel rim, which is a proactive preventive measure;

[0081] (2) The embodiment of the present application can implement two different alarm strategies through two judgment modules. One is an alarm for the occurrence of wheel rim cracking, and the other is an alarm for the sustainable mileage when the wheel rim cracks. The two alarm strategies share a set of hardware devices.

[0082] According to the wheel cracking and air leakage warning method of the embodiment of the present application, a wheel cracking warning is issued when the actual wheel strain value is greater than or equal to the wheel cracking strain warning value and greater than or equal to the wheel cracking strain critical value. When the actual wheel strain value is less than the wheel cracking strain critical value, the actual wheel strain value is stored and corresponding vehicle predicted mileage data is generated. The vehicle's sustainable mileage data is calculated based on the difference between the predicted mileage data and the vehicle's real-time mileage data, and a vehicle sustainable mileage warning is generated. This solves the problem of repairing a faulty wheel after it is discovered, thereby increasing driving safety risks. By real-time monitoring of the impacts applied to the wheel during driving, the user is proactively notified of inner rim cracking warnings or the sustainable mileage in the event of wheel cracking, thereby ensuring driving safety.

[0083] Next, the early warning device for wheel cracking and air leakage proposed in accordance with an embodiment of the present application will be described with reference to the accompanying drawings.

[0084] Figure 5 It is a block diagram of a wheel crack and air leakage warning device according to an embodiment of the present application.

[0085] like Figure 5 As shown, the wheel cracking and air leakage warning device 10 includes: an acquisition module 100, a judgment module 200 and a generation module 300.

[0086] The acquisition module 100 is used to obtain the actual strain value of the wheel of the vehicle;

[0087] The judgment module 200 is configured to judge whether the actual wheel strain value is greater than or equal to the wheel cracking strain critical value if the actual wheel strain value is greater than or equal to the wheel cracking strain warning value;

[0088] The generation module 300 is used to issue a wheel cracking warning if the actual wheel strain value is greater than or equal to the wheel cracking strain critical value. Otherwise, the actual wheel strain value is stored, and corresponding vehicle predicted mileage data is generated based on the actual wheel strain value. The vehicle sustainable mileage data is calculated based on the difference between the vehicle predicted mileage data and the vehicle real-time mileage data, and a vehicle sustainable mileage warning reminder is generated based on the vehicle sustainable mileage data.

[0089] According to one embodiment of the present application, after obtaining the actual strain value of the wheel of the vehicle, the obtaining module 100 further includes:

[0090] The monitoring unit is configured to continue monitoring the actual wheel strain value if the actual wheel strain value is less than the wheel cracking strain warning value until the actual wheel strain value is greater than or equal to the wheel cracking strain warning value.

[0091] According to one embodiment of the present application, after obtaining the actual strain value of the wheel of the vehicle, the obtaining module 100 further includes:

[0092] The data processing unit is used to perform data preprocessing on the actual strain value of the wheel, wherein the data preprocessing includes data cleaning, data standardization, and filtering processing on the actual strain value of the wheel.

[0093] According to one embodiment of the present application, the generation module 300 includes:

[0094] A construction unit for constructing a sustainable driving mileage warning and reminder model;

[0095] The reminder unit is used to determine a wheel cracking warning reminder value according to the vehicle sustainable mileage data based on the sustainable mileage warning reminder model, and to provide a vehicle sustainable mileage warning reminder according to the wheel cracking warning reminder value.

[0096] According to one embodiment of the present application, a construction unit includes:

[0097] A first determining subunit is used to determine a critical value of wheel cracking strain when the wheel cracks;

[0098] a recording subunit, for performing impact tests on the wheel at various wheel impact energies, and recording the impact strain value of the wheel at each impact energy;

[0099] a fitting subunit, configured to generate corresponding vehicle sustainable mileage data based on the impact strain value of each wheel, and to fit the impact strain value of each wheel with the corresponding vehicle sustainable mileage data to obtain a mapping relationship between the impact strain value of each wheel and the corresponding vehicle sustainable mileage data;

[0100] The second determining subunit is configured to determine a wheel cracking strain reminder value based on the mapping relationship.

[0101] According to the wheel cracking and air leakage warning device of the embodiment of the present application, a wheel cracking warning is issued when the actual wheel strain value is greater than or equal to the wheel cracking strain warning value and greater than or equal to the wheel cracking strain critical value. When the actual wheel strain value is less than the wheel cracking strain critical value, the actual wheel strain value is stored and corresponding vehicle predicted mileage data is generated. The vehicle's sustainable mileage data is calculated based on the difference between the predicted mileage data and the vehicle's real-time mileage data, and a vehicle sustainable mileage warning is generated. This solves the problem of repairing a faulty wheel after it is discovered, which increases driving safety risks. By real-time monitoring of the impacts applied to the wheel during driving, the device proactively issues an inner rim cracking warning or a sustainable mileage warning to the user, ensuring driving safety.

[0102] Figure 6 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0103] A memory 601 , a processor 602 , and a computer program stored in the memory 601 and executable on the processor 602 .

[0104] When the processor 602 executes the program, the early warning method for wheel cracking and air leakage provided in the above embodiment is implemented.

[0105] Furthermore, the vehicle further comprises:

[0106] The communication interface 603 is used for communication between the memory 601 and the processor 602 .

[0107] The memory 601 is used to store computer programs that can be run on the processor 602 .

[0108] The memory 601 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0109] If the memory 601, processor 602, and communication interface 603 are implemented independently, the communication interface 603, memory 601, and processor 602 can be interconnected via a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0110] Optionally, in a specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can communicate with each other through an internal interface.

[0111] The processor 602 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0112] This embodiment also provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the above-mentioned early warning method for wheel cracking and air leakage is implemented.

[0113] This embodiment further provides a computer program product, including a computer program. The computer program is executed to implement the early warning method for wheel cracking and air leakage of the above embodiment.

[0114] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0115] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0116] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0117] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or N wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing it in a suitable manner if necessary, and then storing it in a computer memory.

[0118] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0119] Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above-mentioned embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0120] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0121] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A method for early warning of wheel cracking and air leakage, characterized in that: The following steps are involved: Obtain the actual strain value of the vehicle's wheels; If the actual wheel strain value is greater than or equal to the wheel cracking strain warning value, determining whether the actual wheel strain value is greater than or equal to the wheel cracking strain critical value; If the actual wheel strain value is greater than or equal to the wheel cracking strain critical value, a wheel cracking warning is issued; otherwise, the actual wheel strain value is stored, and corresponding vehicle predicted mileage data is generated based on the actual wheel strain value. According to the difference between the vehicle predicted mileage data and the vehicle real-time mileage data, the vehicle sustainable mileage data is calculated, and a vehicle sustainable mileage warning reminder is generated based on the vehicle sustainable mileage data.

2. The method according to claim 1, characterized in that After obtaining the actual strain value of the wheel of the vehicle, the method further includes: If the actual wheel strain value is less than the wheel cracking strain warning value, the actual wheel strain value is continuously monitored until the actual wheel strain value is monitored to be greater than or equal to the wheel cracking strain warning value.

3. The method according to claim 1, characterized in that After obtaining the actual strain value of the wheel of the vehicle, the method further includes: Data preprocessing is performed on the actual wheel strain value, wherein the data preprocessing includes data cleaning, data standardization, and filtering processing on the actual wheel strain value.

4. The method according to claim 1, wherein Generating a vehicle sustainable driving mileage warning reminder based on the vehicle sustainable driving mileage data includes: Build a sustainable mileage warning model; Based on the sustainable mileage warning reminder model, a wheel cracking warning reminder value is determined according to the vehicle sustainable mileage data, and a vehicle sustainable mileage warning reminder is performed according to the wheel cracking warning reminder value.

5. The method according to claim 4, characterized in that The construction of the sustainable driving mileage warning and reminder model includes: Determine the critical value of wheel cracking strain when the wheel cracks; performing impact tests on the wheel at various wheel impact energies, and recording the impact strain value of the wheel at each impact energy; Generating corresponding vehicle sustainable mileage data based on the impact strain value of each wheel, and fitting the impact strain value of each wheel and the corresponding vehicle sustainable mileage data to obtain a mapping relationship between the impact strain value of each wheel and the corresponding vehicle sustainable mileage data; A wheel cracking strain reminder value is determined based on the mapping relationship.

6. A wheel cracking and air leakage warning device, characterized in that: include: An acquisition module is used to obtain actual strain values ​​of vehicle wheels; a judgment module, configured to judge whether the actual wheel strain value is greater than or equal to the wheel cracking strain critical value if the actual wheel strain value is greater than or equal to the wheel cracking strain warning value; A generation module is configured to issue a wheel cracking warning if the actual wheel strain value is greater than or equal to the wheel cracking strain critical value; otherwise, store the actual wheel strain value, and generate corresponding vehicle predicted mileage data based on the actual wheel strain value; calculate the vehicle sustainable mileage data based on the difference between the vehicle predicted mileage data and the vehicle real-time mileage data; and generate a vehicle sustainable mileage warning reminder based on the vehicle sustainable mileage data.

7. The device according to claim 6, characterized in that After obtaining the actual strain value of the wheel of the vehicle, the obtaining module further includes: The monitoring unit is configured to continue monitoring the actual wheel strain value if the actual wheel strain value is less than the wheel cracking strain warning value until the actual wheel strain value is greater than or equal to the wheel cracking strain warning value.

8. The device according to claim 6, characterized in that After obtaining the actual strain value of the wheel of the vehicle, the obtaining module further includes: A data processing unit is used to perform data preprocessing on the actual wheel strain value, wherein the data preprocessing includes data cleaning, data standardization, and filtering processing on the actual wheel strain value.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the early warning method for wheel cracking and air leakage as described in any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the early warning method for wheel cracking and air leakage as described in any one of claims 1 to 5.

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