A tire wear early warning method and device, electronic equipment and storage medium

Abstract

The application discloses a tire wear early warning method and device, electronic equipment and storage medium, the method comprises the following steps: in the process of vehicle driving, if the weather at that time belongs to the preset weather, whether the real-time speed of the vehicle is greater than the speed threshold is determined; if the real-time speed is greater than the speed threshold, whether the real-time driving state of the vehicle is the steering state is determined; if the real-time driving state of the vehicle is the steering state, the real-time wheel speed data is compensated based on the steering angle, and the compensated wheel speed data is obtained; at least based on the compensated wheel speed data, the real-time tire pressure data of the vehicle and the real-time load data of the vehicle, the limit radius of the tire is determined; based on the limit radius and the real-time radius, whether the early warning condition is met is determined; when it is determined that the early warning condition is met, the early warning operation is performed. The application sends a prompt to the user when the wear degree of the tire is large, and improves the driving safety of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire wear warning, in particular to a tire wear warning method and device, electronic equipment and storage medium. BACKGROUND

[0002] Tires play a very important role in the driving safety of vehicles. However, due to the lack of professional knowledge of users, the users are difficult to make effective evaluation on the wear of tires, resulting in an increase in the driving safety risk of vehicles.

[0003] Therefore, the present application is provided. SUMMARY

[0004] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

[0005] In view of the problem that users are difficult to make effective evaluation on the wear of tires in the prior art, resulting in an increase in the driving safety risk of vehicles, the present application provides a tire wear warning method, which realizes the purpose of accurately quantifying and calculating the wear degree of tires in the process of driving of vehicles, and issues a prompt to users when the wear degree of tires is large, thereby improving the driving safety of vehicles.

[0006] In a first aspect, the present application provides a tire wear warning method, comprising the following steps:

[0007] In the process of driving of a vehicle, it is detected whether the weather at the time belongs to a preset weather;

[0008] If the weather at the time belongs to the preset weather, it is determined whether a real-time vehicle speed of the vehicle is greater than a vehicle speed threshold;

[0009] If the real-time vehicle speed is greater than the vehicle speed threshold, it is determined whether a real-time driving state of the vehicle is a turning state;

[0010] If the real-time driving state of the vehicle is the turning state, real-time wheel speed data is compensated based on a turning angle to obtain compensated wheel speed data;

[0011] A limit radius of a tire is determined based on at least the compensated wheel speed data, real-time tire pressure data of the vehicle and real-time load data of the vehicle;

[0012] A real-time radius of the tire is determined based on a real-time driving speed of the vehicle and a real-time angular speed of the tire;

[0013] determine whether a warning condition is met based on the limit radius and the real-time radius;

[0014] perform a warning operation when it is determined that the warning condition is met.

[0015] Further, before determining whether the real-time driving state of the vehicle is a turning state, the method further comprises:

[0016] obtaining a brake signal of the vehicle;

[0017] determining whether the real-time driving state of the vehicle is in a braking state based on the brake signal, and if it is determined that the real-time driving state of the vehicle is not in the braking state, continuing to perform the operation of determining whether the real-time driving state of the vehicle is the turning state.

[0018] Further, the compensating the real-time wheel speed data based on the steering angle to obtain compensated wheel speed data comprises:

[0019] adding a compensation value corresponding to the steering angle to the real-time wheel speed data according to a preset correspondence between angles and compensation values to obtain the compensated wheel speed data, wherein the greater the steering angle, the greater the corresponding compensation value.

[0020] Further, the determining the limit radius of the tire based on at least the compensated wheel speed data, the real-time tire pressure data of the vehicle, and the real-time load data of the vehicle comprises:

[0021] determining the limit radius of the tire based on the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, a Z-direction acceleration and an X-direction acceleration detected by the tire pressure sensor of the vehicle.

[0022] Further, the determining whether the warning condition is met based on the limit radius and the real-time radius comprises:

[0023] if the real-time radius is less than the limit radius, recording the real-time radius;

[0024] when the number of recorded real-time radii reaches a number threshold, calculating a proportion of the number of recorded real-time radii in a total number and determining a radius average value based on the recorded real-time radii;

[0025] determining whether the warning condition is met according to the proportion and the radius average value.

[0026] Further, the performing the warning operation comprises at least one of:

[0027] display and / or play preset prompt information through a central control screen of the vehicle;

[0028] display and / or play preset prompt information through a third-party terminal device;

[0029] project preset prompt information through a head-up display device of the vehicle.

[0030] Further, the detecting whether the weather at the moment belongs to the preset weather during the driving of the vehicle comprises:

[0031] determining whether the weather at the moment belongs to the preset weather through data collected by a sunlight and rainfall sensor of the vehicle.

[0032] In a second aspect, the present application further provides a tire wear warning device, comprising:

[0033] a detection module configured to detect whether the weather at the moment belongs to the preset weather during the driving of the vehicle;

[0034] a first determination module configured to determine whether a real-time vehicle speed of the vehicle is greater than a vehicle speed threshold if the weather at the moment belongs to the preset weather;

[0035] a second determination module configured to determine whether a real-time driving state of the vehicle is a turning state if the real-time vehicle speed is greater than the vehicle speed threshold;

[0036] a compensation module configured to compensate real-time wheel speed data based on a turning angle if the real-time driving state of the vehicle is the turning state, to obtain compensated wheel speed data;

[0037] a third determination module configured to determine a limit radius of a tire based on at least the compensated wheel speed data, real-time tire pressure data of the vehicle, and real-time load data of the vehicle;

[0038] a fourth determination module configured to determine a real-time radius of the tire based on a real-time driving speed of the vehicle and a real-time angular velocity of the tire;

[0039] a fifth determination module configured to determine whether a warning condition is met based on the limit radius and the real-time radius;

[0040] a warning module configured to perform a warning operation when it is determined that the warning condition is met.

[0041] In a third aspect, the present application further provides an electronic device, comprising:

[0042] one or more processors;

[0043] a storage device configured to store one or more programs;

[0044] When the one or more programs are executed by the one or more processors, the one or more processors implement the tire wear warning method as described above.

[0045] In a fourth aspect, the present application further provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the tire wear warning method as described above.

[0046] The tire wear warning method disclosed in the present application, by detecting whether the weather at the time belongs to the preset weather during the driving of the vehicle; if the weather at the time belongs to the preset weather, determining whether the real-time vehicle speed of the vehicle is greater than the vehicle speed threshold; if the real-time vehicle speed is greater than the vehicle speed threshold, determining whether the real-time driving state of the vehicle is the steering state; if the real-time driving state of the vehicle is the steering state, compensating the real-time wheel speed data based on the steering angle to obtain the compensated wheel speed data; determining the limit radius of the tire based on at least the compensated wheel speed data, the real-time tire pressure data of the vehicle and the real-time load data of the vehicle; determining the real-time radius of the tire based on the real-time driving speed of the vehicle and the real-time angular velocity of the tire; determining whether the warning condition is met based on the limit radius and the real-time radius; when it is determined that the warning condition is met, executing the technical means of the warning operation, achieving the purpose of accurately quantifying the wear degree of the tire during the driving of the vehicle, and prompting the user when the wear degree of the tire is large, improving the driving safety of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0048] Figure 1 A flowchart of a tire wear warning method provided by an embodiment of the present application;

[0049] Figure 2 A Z direction and X direction schematic diagram of acceleration detected by a tire pressure sensor provided by an embodiment of the present application;

[0050] Figure 3 A flowchart of a tire wear warning method provided by an embodiment of the present application;

[0051] Figure 4 A structural schematic diagram of a tire wear warning device provided by an embodiment of the present application;

[0052] Figure 5Fig. 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0053] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of interpretation of the present application and are not intended to limit the present application. In addition, it should be noted that only parts related to the present application are shown in the drawings for the purpose of description.

[0054] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0055] Figure 1 Fig. 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application.

[0056] As shown in Fig. 1, the tire wear warning method includes the following steps: Figure 1

[0057] S110, detecting whether the current weather is a preset weather during the driving of the vehicle.

[0058] The preset weather specifically refers to sunny day, cloudy day, etc. The tire of the vehicle is prone to skidding in rainy day or snowy day, and the detected tire wear degree in such environment has a large difference from the true value. Therefore, in order to ensure the detection accuracy of the tire wear degree, the detection of the tire wear degree is not performed in rainy day or snowy day.

[0059] In some embodiments, the detection of whether the current weather is a preset weather includes:

[0060] The data collected by the sunlight and rainfall sensor of the vehicle is used to determine whether the current weather is a preset weather.

[0061] In other embodiments, the detection of whether the current weather is a preset weather includes: obtaining the weather data of the current weather from a weather platform or a third-party electronic terminal (such as a smart phone), and determining whether the current weather is a preset weather based on the weather data.

[0062] ​In the vehicle driving process, the purpose of detecting whether the current weather belongs to the preset weather is to serve as an execution condition of a subsequent operation step. Optionally, if it is detected that the current weather is rainy or snowy, the subsequent operation step is not executed. If it is detected that the current weather is neither rainy nor snowy, the subsequent operation step is continued to be executed, so as to ensure the detection accuracy of the tire wear degree and avoid the problem of poor user experience caused by false alarm.

[0063] In S120, if the current weather belongs to the preset weather, it is determined whether the real-time vehicle speed of the vehicle is greater than a vehicle speed threshold.

[0064] In S130, if the real-time vehicle speed is greater than the vehicle speed threshold, it is determined whether the real-time driving state of the vehicle is a turning state.

[0065] In the above embodiment, the real-time vehicle speed of the vehicle serves as another restriction condition for determining whether the subsequent tire wear degree detection step is continued to be executed, so as to further ensure the accuracy of the determined tire wear degree. Specifically, if the real-time vehicle speed is not greater than the vehicle speed threshold, on one hand, the vehicle speed cannot obviously represent the tire wear degree, and on the other hand, it indicates that the current road surface condition of the vehicle is poor. When the vehicle drives on the road surface in poor condition, the tire wear degree cannot be accurately determined.

[0066] Optionally, the real-time vehicle speed signal can be read from the CAN bus of the vehicle, so as to determine the real-time vehicle speed of the vehicle.

[0067] In S140, if the real-time driving state of the vehicle is the turning state, the real-time wheel speed data is compensated based on the turning angle, so as to obtain compensated wheel speed data.

[0068] In some embodiments, the compensation of the real-time wheel speed data based on the turning angle to obtain the compensated wheel speed data comprises:

[0069] According to a preset corresponding relationship between the angle and the compensation value, the compensation value corresponding to the turning angle is added to the real-time wheel speed data, so as to obtain the compensated wheel speed data. The greater the turning angle is, the greater the corresponding compensation value is.

[0070] When the vehicle is in the turning state, the real-time wheel speed data is compensated, so as to obtain the wheel speed data close to that when the vehicle drives in a straight line, and thus the accuracy of the tire wear degree determined based on the wheel speed data is ensured.

[0071] In S150, the limit radius of the tire is determined based on at least the compensated wheel speed data, the real-time tire pressure data of the vehicle, and the real-time load data of the vehicle.

[0072] In some optional embodiments, the determining the limit radius of the tire based on at least the compensated wheel speed data, the real-time tire pressure data of the vehicle, and the real-time load data of the vehicle comprises:

[0073] The limit radius of the tire is determined based on the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor of the vehicle.

[0074] The limit radius represents the tire radius under the maximum allowed tire wear degree. If the actual radius of the tire is smaller than the limit radius, it means that the actual wear degree of the tire has exceeded the limit, and an alarm should be given in time to prompt the user to replace the tire or stop the vehicle to ensure the driving safety of the vehicle.

[0075] Optionally, the limit radius of the tire can be determined based on the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor of the vehicle through a neural network model, i.e., the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor of the vehicle are used as the input of the trained neural network model, and the limit radius is used as the output of the neural network model.

[0076] Optionally, the calibration formula can also be determined through multiple real vehicle tests, and the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor of the vehicle are used as the variables of the calibration formula, and the limit radius is determined based on the calibration formula.

[0077] It can be understood that the radius of the worn tire will become smaller, which will cause the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor to change, and thus the determination accuracy of the tire wear degree can be improved by introducing the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor. Correspondingly, refer to the Z-direction and X-direction acceleration detected by a tire pressure sensor shown in Figure 2 .

[0078] S160, determining the real-time radius of the tire based on the real-time driving speed of the vehicle and the real-time angular velocity of the tire.

[0079] Specifically, the real-time radius is determined according to a relationship among the driving speed, the angular speed of the tire, and the tire radius:

[0080] R = V / ω, where R represents the real-time radius of the tire, V represents the real-time driving speed of the vehicle, and ω represents the real-time angular speed of the tire.

[0081] S170, determining whether a warning condition is met based on the limit radius and the real-time radius.

[0082] Optionally, a difference between the limit radius and the real-time radius is calculated, and a wear degree corresponding to the difference is determined according to a preset corresponding relationship between a difference value and a wear degree. Alternatively, a ratio between the limit radius and the real-time radius is calculated, and a wear degree corresponding to the ratio is determined according to a preset corresponding relationship between a ratio value and a wear degree. Then, whether the warning condition is met is determined based on the wear degree.

[0083] In some embodiments, the determining whether the warning condition is met based on the limit radius and the real-time radius comprises the following steps:

[0084] 161, if the real-time radius is smaller than the limit radius, recording the real-time radius.

[0085] 162, when a number of recorded real-time radii reaches a number threshold, calculating a proportion of the number of recorded real-time radii in a total number and determining a radius average value based on the recorded real-time radii.

[0086] 163, determining whether the warning condition is met according to the proportion and the radius average value.

[0087] For example, if the proportion reaches a proportion threshold, it is determined that the warning condition is met. Alternatively, if the radius average value reaches a set value, it is determined that the warning condition is met. Alternatively, if the proportion reaches the proportion threshold and the radius average value reaches the set value, it is determined that the warning condition is met.

[0088] S180, performing a warning operation when it is determined that the warning condition is met.

[0089] In some embodiments, the performing the warning operation comprises at least one of the following:

[0090] displaying and / or playing preset prompt information through a central control screen of the vehicle;

[0091] displaying and / or playing preset prompt information through a third-party terminal device;

[0092] projecting preset prompt information through a head-up display device of the vehicle.

[0093] When it is determined that the early warning condition is met, the early warning operation is performed, the purpose of timely prompting the user to replace the tire or stop the vehicle is achieved, and the driving safety of the vehicle is ensured, thereby solving the problem that the user cannot accurately estimate the wear degree of the tire due to lack of professional knowledge or lack of rich driving experience, and the driving risk is increased.

[0094] The tire wear early warning method disclosed by the embodiment of the application comprises the following steps: determining whether the weather at the time is a preset weather during the driving of the vehicle; if the weather at the time is the preset weather, determining whether the real-time vehicle speed of the vehicle is greater than a vehicle speed threshold; if the real-time vehicle speed is greater than the vehicle speed threshold, determining whether the real-time driving state of the vehicle is a steering state; if the real-time driving state of the vehicle is the steering state, compensating the real-time wheel speed data based on the steering angle to obtain compensated wheel speed data; determining the limit radius of the tire based on at least the compensated wheel speed data, the real-time tire pressure data of the vehicle and the real-time load data of the vehicle; determining the real-time radius of the tire based on the real-time driving speed of the vehicle and the real-time angular speed of the tire; determining whether the early warning condition is met based on the limit radius and the real-time radius; and performing the early warning operation when it is determined that the early warning condition is met, so as to achieve the purpose of accurately quantitatively calculating the wear degree of the tire during the driving of the vehicle, and the user is prompted when the wear degree of the tire is large, and the driving safety of the vehicle is improved.

[0095] In some embodiments, in order to further improve the determination accuracy of the wear degree of the tire, before the determination of whether the real-time driving state of the vehicle is the steering state, the method further comprises:

[0096] obtaining the brake signal of the vehicle;

[0097] determining whether the real-time driving state of the vehicle is in the braking state based on the brake signal, and if it is determined that the real-time driving state of the vehicle is not in the braking state, the operation of determining whether the real-time driving state of the vehicle is the steering state is continued.

[0098] When the vehicle is in the braking state, the wheels may slip, and therefore the relevant data (the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor of the vehicle) at this time are not suitable as the basis for evaluating the wear degree of the tire, and therefore the subsequent operation steps are not performed when the vehicle is in the braking state, so as to avoid determining the wear degree of the tire with low accuracy.

[0099] Correspondingly, reference is made to the description of the method for determining the wear degree of the tire as shown in Figure 3A flowchart of a tire wear early warning method is shown, and the tire wear early warning method comprises the following steps: determining whether it is sunny based on data collected by a sunshine and rainfall sensor, if it is sunny, determining whether the vehicle speed is greater than a set value based on vehicle speed information, if the vehicle speed is greater than the set value, determining whether the vehicle is braking based on brake pedal information, if the vehicle is not braking, collecting data used as a basis for calculating the tire wear degree (the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and X-direction acceleration detected by the tire pressure sensor of the vehicle), and when it is determined that the wear degree reaches a threshold value, prompting the user for early warning.

[0100] Figure 4 A structural diagram of a tire wear early warning device provided by an embodiment of the present application is shown, and the device can be integrated in a controller of a vehicle. Figure 4 As shown, the device comprises a detection module 410, a first determination module 420, a second determination module 430, a compensation module 440, a third determination module 450, a fourth determination module 460, a fifth determination module 470, and a warning module 480.

[0101] The detection module 410 is configured to detect whether the weather at the time is a preset weather during the driving of the vehicle. The first determination module 420 is configured to determine whether the real-time vehicle speed of the vehicle is greater than a vehicle speed threshold value if the weather at the time is the preset weather. The second determination module 430 is configured to determine whether the real-time driving state of the vehicle is a steering state if the real-time vehicle speed is greater than the vehicle speed threshold value. The compensation module 440 is configured to compensate the real-time wheel speed data based on the steering angle to obtain compensated wheel speed data if the real-time driving state of the vehicle is the steering state. The third determination module 450 is configured to determine the limit radius of the tire based on at least the compensated wheel speed data, the real-time tire pressure data of the vehicle, and the real-time load data of the vehicle. The fourth determination module 460 is configured to determine the real-time radius of the tire based on the real-time driving speed of the vehicle and the real-time angular speed of the tire. The fifth determination module 470 is configured to determine whether the early warning condition is met based on the limit radius and the real-time radius. The warning module 480 is configured to perform a warning operation when it is determined that the early warning condition is met.

[0102] Optionally, the device further comprises an acquisition module configured to acquire a brake signal of the vehicle, and a judgment module configured to determine whether the real-time driving state of the vehicle is in a braking state based on the brake signal, and if it is determined that the real-time driving state of the vehicle is not in the braking state, continue to perform the operation of determining whether the real-time driving state of the vehicle is the steering state.

[0103] Optionally, the compensation module 440 is specifically configured to: add the compensation value corresponding to the steering angle to the real-time wheel speed data according to a preset corresponding relationship between the steering angle and the compensation value, to obtain the compensated wheel speed data, wherein the greater the steering angle, the greater the corresponding compensation value.

[0104] Optionally, the third determination module 450 is specifically configured to: determine the limit radius of the tire based on the compensated wheel speed data, the real-time driving speed of the vehicle, the real-time tire pressure data of the vehicle, the real-time tire temperature data of the vehicle, the real-time load data of the vehicle, the Z-direction acceleration and the X-direction acceleration detected by the tire pressure sensor of the vehicle.

[0105] Optionally, the fifth determination module 470 includes a recording unit configured to record the real-time radius if the real-time radius is less than the limit radius; a statistical unit configured to, when the number of recorded real-time radii reaches a number threshold, count the proportion of the number of recorded real-time radii in the total number and determine a radius average value based on the recorded real-time radii; and a determination unit configured to determine whether the early warning condition is met according to the proportion and the radius average value.

[0106] Optionally, the early warning module 480 is specifically configured to:

[0107] display and / or play preset prompt information through a central control screen of the vehicle;

[0108] display and / or play preset prompt information through a third-party terminal device;

[0109] project preset prompt information through a head-up display device of the vehicle.

[0110] Optionally, the detection module 410 is specifically configured to: determine whether the weather at the time belongs to a preset weather through data collected by a sunlight and rainfall sensor of the vehicle.

[0111] The tire wear warning device disclosed in this invention detects whether the weather is a preset weather condition during vehicle operation; if the weather is a preset weather condition, it determines whether the vehicle's real-time speed is greater than a speed threshold; if the real-time speed is greater than the speed threshold, it determines whether the vehicle's real-time driving state is a turning state; if the vehicle's real-time driving state is a turning state, it compensates the real-time wheel speed data based on the turning angle to obtain compensated wheel speed data; it determines the tire's limit radius based at least on the compensated wheel speed data, the vehicle's real-time tire pressure data, and the vehicle's real-time load data; it determines whether a warning condition is met based on the limit radius and the real-time radius; and it executes a warning operation when the warning condition is met. This technical means achieves the goal of accurately quantifying and calculating the tire wear degree during vehicle operation, and provides a warning to the user when the tire wear degree is determined to be large, thereby improving vehicle driving safety.

[0112] The tire wear warning device provided in this embodiment can execute the steps in the tire wear warning method provided in this embodiment, and has the execution steps and beneficial effects, which will not be repeated here.

[0113] Figure 5 This is a schematic diagram of the structure of an electronic device according to an embodiment of this disclosure. See below for details. Figure 5 It shows a schematic diagram of a structure suitable for implementing the electronic device 500 in the embodiments of this disclosure. Figure 5 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0114] like Figure 5 As shown, the electronic device 500 may include a processing device (e.g., a central processing unit, a graphics processor, etc.) 501, which can perform various appropriate actions and processes to implement the methods of the embodiments described herein, based on a program stored in a read-only memory (ROM) 502 or a program loaded from a storage device 508 into a random access memory (RAM) 503. The RAM 503 also stores various programs and data required for the operation of the electronic device 500. The processing device 501, ROM 502, and RAM 503 are interconnected via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0115] In particular, in accordance with embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for executing the methods illustrated by the flowcharts, thereby implementing the tire wear warning method as described above. In such embodiments, the computer program can be downloaded and installed from a network by the communication device 509, or installed from the storage device 508, or installed from the ROM 502. When the computer program is executed by the processing device 501, the above-described functions defined in the methods of the embodiments of the present disclosure are performed.

[0116] It should be noted that the computer-readable medium described above in the present disclosure can be a computer-readable signal medium or a computer-readable storage medium or any combination thereof. The computer-readable storage medium, for example, can be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any suitable combination thereof. More specific examples of the computer-readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, the computer-readable storage medium can be any tangible medium that contains or stores a program used by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, the computer-readable signal medium can include a data signal propagated in baseband or propagated as a carrier wave in a propagated data signal, in which the computer-readable program code is carried. Such a propagated data signal can take a variety of forms, including but not limited to, an electromagnetic signal, an optical signal, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium that is not a computer-readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained in the computer-readable medium can be transmitted by any suitable medium, including but not limited to, wire, cable, RF (radio frequency), or the like, or any suitable combination thereof.

[0117] The computer readable medium can be included in the electronic device, or can exist separately from the electronic device. The computer readable medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: during driving of the vehicle, determine whether the current weather is a preset weather; if the current weather is the preset weather, determine whether a real-time vehicle speed of the vehicle is greater than a vehicle speed threshold; if the real-time vehicle speed is greater than the vehicle speed threshold, determine whether a real-time driving state of the vehicle is a turning state; if the real-time driving state of the vehicle is the turning state, compensate real-time wheel speed data based on a turning angle to obtain compensated wheel speed data; determine a limit radius of a tire based on at least the compensated wheel speed data, real-time tire pressure data of the vehicle, and real-time load data of the vehicle; determine a real-time radius of the tire based on a real-time driving speed of the vehicle and a real-time angular speed of the tire, and determine whether a warning condition is met based on the limit radius and the real-time radius; and perform a warning operation when it is determined that the warning condition is met.

[0118] Optionally, when the one or more programs are executed by the electronic device, the electronic device can further perform other steps described in the embodiments.

[0119] In the context of the present disclosure, a machine-readable medium can be a tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium can include, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the above. More specific examples of the machine-readable storage medium can include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0120] The above description is merely the preferred embodiments of the present disclosure and the explanation of the principles of the applied technology. It should be understood by those skilled in the art that the disclosed scope of the present disclosure is not limited to the technical solutions formed by the specific combinations of the technical features described above, and should also cover other technical solutions formed by any combinations of the technical features described above or their equivalent features without departing from the disclosed concept. For example, the technical solutions formed by the mutual replacement of the above-described features and the technical features disclosed in the present disclosure (but not limited to) with similar functions.

[0121] The principles and implementation manners of the present application are described by using specific examples in the present article, and the above example descriptions are only used to help understand the method of the present application and its core idea. The above descriptions are only the preferred implementation manners of the present application. It should be noted that, due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A tire wear warning method, characterized in that, include: During vehicle operation, check whether the current weather is within the preset weather conditions; If the weather at that time is the preset weather, then determine whether the real-time speed of the vehicle is greater than the speed threshold. If the real-time vehicle speed is greater than the vehicle speed threshold, determine whether the real-time driving state of the vehicle is a turning state; If the vehicle's real-time driving state is a steering state, then the real-time wheel speed data is compensated based on the steering angle to obtain compensated wheel speed data; The limit radius of the tire is determined at least based on the compensated wheel speed data, the real-time tire pressure data of the vehicle, and the real-time load data of the vehicle. The real-time radius of the tires is determined based on the real-time driving speed of the vehicle and the real-time angular velocity of the tires. Determine whether the early warning conditions are met based on the extreme radius and the real-time radius; When the conditions for issuing an early warning are met, the early warning operation is executed.

2. The method according to claim 1, characterized in that, Before determining whether the real-time driving state of the vehicle is a turning state, the method further includes: Obtain the braking signal of the vehicle; Based on the braking signal, determine whether the vehicle's real-time driving state is in a braking state. If it is determined that the vehicle's real-time driving state is not in a braking state, then continue to perform the operation of determining whether the vehicle's real-time driving state is in a steering state.

3. The method according to claim 1, characterized in that, The process of compensating real-time wheel speed data based on steering angle to obtain compensated wheel speed data includes: According to the pre-set correspondence between angle and compensation value, the compensation value corresponding to the steering angle is added to the real-time wheel speed data to obtain the compensated wheel speed data. The larger the steering angle, the larger the corresponding compensation value.

4. The method according to claim 1, characterized in that, Determining the tire's limiting radius based at least on the compensated wheel speed data, the vehicle's real-time tire pressure data, and the vehicle's real-time load data includes: The limit radius of the tire is determined based on the compensated wheel speed data, the vehicle's real-time driving speed, the vehicle's real-time tire pressure data, the vehicle's real-time tire temperature data, the vehicle's real-time load data, and the Z-direction acceleration and X-direction acceleration detected in real-time by the vehicle's tire pressure sensor.

5. The method according to claim 1, characterized in that, The process of determining whether the early warning conditions are met based on the limit radius and the real-time radius includes: If the real-time radius is less than the limit radius, then the real-time radius is recorded; When the number of recorded real-time radii reaches the threshold, the proportion of the recorded real-time radii to the total number is counted, and the average radius is determined based on the recorded real-time radii. Whether the warning conditions are met is determined based on the ratio and the average radius.

6. The method according to any one of claims 1-5, characterized in that, The execution of the early warning operation includes at least one of the following: Preset prompts are displayed and / or played on the vehicle's central control screen; Preset prompts are displayed and / or played via third-party terminal devices; Preset prompts are projected through the vehicle's head-up display.

7. The method according to any one of claims 1-5, characterized in that, The process of detecting whether the weather during vehicle operation falls within the preset weather conditions includes: The system uses data collected by the vehicle's sunlight and rain sensors to determine whether the current weather is within the preset weather pattern.

8. A tire wear warning device, characterized in that, include: The detection module is used to detect whether the weather at the time of vehicle operation is the preset weather. The first determining module is used to determine whether the real-time vehicle speed is greater than a speed threshold if the weather at that time is a preset weather. The second determining module is used to determine whether the real-time driving state of the vehicle is a turning state if the real-time vehicle speed is greater than the vehicle speed threshold. The compensation module is used to compensate the real-time wheel speed data based on the steering angle if the real-time driving state of the vehicle is a steering state, so as to obtain the compensated wheel speed data. The third determining module is used to determine the limit radius of the tire based at least on the compensated wheel speed data, the real-time tire pressure data of the vehicle, and the real-time load data of the vehicle. The fourth determining module is used to determine the real-time radius of the tire based on the real-time driving speed of the vehicle and the real-time angular velocity of the tire. The fifth determining module is used to determine whether the early warning conditions are met based on the limit radius and the real-time radius; The early warning module is used to execute early warning operations when it is determined that the early warning conditions are met.

9. An electronic device, characterized in that, The electronic device includes: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the tire wear warning method as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the tire wear warning method as described in any one of claims 1-7.

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