Tire wear detection method, device and equipment

Abstract

The invention provides a tire wear detection method, device and equipment, and relates to the technical field of intelligent automobiles. In some embodiments of the invention, the method comprises the following steps: obtaining actually measured slip rates corresponding to a plurality of actually measured accelerations of a target vehicle in a set ignition period; according to each actually-measured acceleration, inquiring a mapping relation table of the acceleration and the slip rate to obtain a slip rate standard value corresponding to each actually-measured acceleration; the tire wear detection is automatically carried out based on the actually measured slip rate corresponding to each actually measured acceleration and the slip rate standard value corresponding to each actually measured acceleration, the tire wear detection result of the target vehicle is obtained, the tire wear detection efficiency is improved, and the accuracy of the detection result is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of intelligent automobile, and particularly relates to a tire wear detection method, device and equipment. BACKGROUND

[0002] The wear degree of a tire directly affects the driving safety and handling performance of a vehicle.

[0003] Traditional tire wear detection methods mainly rely on manual inspection or regular maintenance, and the tire wear detection efficiency is low, and the detection result accuracy is low. SUMMARY

[0004] The present disclosure provides a tire wear detection method, device and equipment to at least solve the problems of low tire wear detection efficiency and low detection result accuracy.

[0005] The technical solution of the present disclosure is as follows:

[0006] The present disclosure provides a tire wear detection method, device and equipment to at least solve the problems of low tire wear detection efficiency and low detection result accuracy.

[0007] Obtaining a plurality of measured slip rates corresponding to a plurality of measured accelerations of a target vehicle within a set firing period;

[0008] According to each of the measured accelerations, querying a mapping relationship table of acceleration and slip rate to obtain a slip rate standard value corresponding to each of the measured accelerations;

[0009] According to the measured slip rate corresponding to each of the measured accelerations and the slip rate standard value corresponding to each of the measured accelerations, performing tire wear detection to obtain a tire wear detection result of the target vehicle.

[0010] Optionally, the obtaining of the plurality of measured slip rates corresponding to the plurality of measured accelerations of the target vehicle within the set firing period comprises:

[0011] Within the set firing period of the target vehicle, using a vehicle speed sensor installed on the target vehicle to collect actual vehicle speeds of the target vehicle under a plurality of measured accelerations;

[0012] Using a wheel speed sensor installed on the target vehicle to collect wheel circumferential speeds of the target vehicle under a plurality of measured accelerations;

[0013] According to the actual vehicle speeds and the wheel circumferential speeds, calculating a plurality of measured slip rates corresponding to the plurality of measured accelerations.

[0014] Optionally, the tire wear detection is performed according to the measured slip ratio corresponding to each of the measured accelerations and the slip ratio standard value corresponding to each of the measured accelerations, to obtain a tire wear detection result of the target vehicle, including:

[0015] According to the measured slip ratio corresponding to each of the measured accelerations and the slip ratio standard value corresponding to each of the measured accelerations, a ratio exceeding standard corresponding to each of the measured accelerations is calculated;

[0016] According to the ratio exceeding standard corresponding to the first acceleration, a first weighting coefficient sum is determined; wherein the first acceleration is an acceleration with a measured slip ratio greater than or equal to a slip ratio standard value in the plurality of measured accelerations;

[0017] According to the ratio exceeding standard corresponding to the second acceleration, a second weighting coefficient sum is determined; wherein the second acceleration is an acceleration with a measured slip ratio less than a slip ratio standard value in the plurality of measured accelerations;

[0018] According to the first weighting coefficient sum and the second weighting coefficient sum, a tire wear detection result is determined.

[0019] Optionally, the tire wear detection is performed according to the measured slip ratio corresponding to each of the measured accelerations and the slip ratio standard value corresponding to each of the measured accelerations, to obtain a tire wear detection result of the target vehicle, including:

[0020] The difference between the measured slip ratio corresponding to each of the measured accelerations and the slip ratio standard value corresponding to each of the measured accelerations is calculated;

[0021] The ratio of the difference to the measured slip ratio is taken as the ratio exceeding standard corresponding to each of the measured accelerations.

[0022] Optionally, the first weighting coefficient sum is determined according to the ratio exceeding standard corresponding to the first acceleration; wherein the first acceleration is an acceleration with a measured slip ratio greater than or equal to a slip ratio standard value in the plurality of measured accelerations, including:

[0023] The ratio exceeding standard corresponding to the first acceleration is added to obtain the first weighting coefficient sum.

[0024] Optionally, the first weighting coefficient sum is determined according to the ratio exceeding standard corresponding to the first acceleration; wherein the first acceleration is an acceleration with a measured slip ratio greater than or equal to a slip ratio standard value in the plurality of measured accelerations, including:

[0025] According to the ratio exceeding standard corresponding to each of the measured accelerations and the sum of the ratio exceeding standards corresponding to the plurality of measured accelerations, a weighting coefficient corresponding to each of the measured accelerations is calculated;

[0026] The sum of the first weighting coefficients corresponding to the first acceleration is taken as the first weighting coefficient sum.

[0027] Optionally, the determining the tire wear detection result according to the first weighting coefficient sum and the second weighting coefficient sum comprises:

[0028] In the case that the first weighting coefficient sum is greater than or equal to the second weighting coefficient sum, the tire wear detection result is determined as tire detection unqualified.

[0029] In the case that the first weighting coefficient sum is less than the second weighting coefficient sum, the tire wear detection result is determined as tire detection qualified.

[0030] Optionally, after the tire wear detection result is determined as tire detection unqualified, the method further comprises:

[0031] displaying a warning prompt information on a vehicle-mounted display screen of the target vehicle; or,

[0032] controlling the target vehicle to play a warning prompt voice.

[0033] The embodiments of the present disclosure further provide a tire wear detection device, comprising:

[0034] an acquisition module configured to acquire a plurality of measured slip rates corresponding to a plurality of measured accelerations of a target vehicle in a set firing period;

[0035] a query module configured to query a mapping relationship table of acceleration and slip rate according to each of the measured accelerations to obtain a slip rate standard value corresponding to each of the measured accelerations;

[0036] a detection module configured to perform tire wear detection according to the measured slip rate corresponding to each of the measured accelerations and the slip rate standard value corresponding to each of the measured accelerations to obtain a tire wear detection result of the target vehicle.

[0037] The embodiments of the present disclosure further provide an electronic device, comprising:

[0038] a processor;

[0039] a memory for storing processor-executable instructions;

[0040] The processor is configured to execute instructions to implement each step in the above method.

[0041] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

[0042] In some embodiments of the present disclosure, the measured slip ratios corresponding to the multiple measured accelerations of the target vehicle within the set ignition period are obtained; the slip rate standard value corresponding to each measured acceleration is obtained by querying the mapping relationship table of acceleration and slip rate according to each measured acceleration; the present disclosure automatically performs tire wear detection based on the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration to obtain the tire wear detection result of the target vehicle, thereby improving the tire wear detection efficiency and improving the accuracy of the detection result.

[0043] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0044] The accompanying drawings incorporated in the specification hereof and forming a part thereof illustrate embodiments consistent with the present disclosure and together with the description are used to explain the principles of the present disclosure, and are not intended to limit the present disclosure.

[0045] Figure 1 A flowchart of a tire wear detection method according to an exemplary embodiment of the present disclosure is shown in FIG. 1.

[0046] Figure 2 An architecture diagram of a tire wear early warning system according to an exemplary embodiment of the present disclosure is shown in FIG. 2.

[0047] Figure 3 A structural diagram of a tire wear detection device according to an exemplary embodiment of the present disclosure is shown in FIG. 3.

[0048] Figure 4 A structural diagram of an electronic device according to an exemplary embodiment of the present disclosure is shown in FIG. 4. DETAILED DESCRIPTION

[0049] In order to make the ordinary person skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily represent a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present disclosure. On the contrary, they are only examples of devices and methods consistent with some aspects of the present disclosure.

[0051] It should be noted that the user information involved in the present disclosure includes but is not limited to user equipment information and user personal information; the collection, storage, use, processing, transmission, provision and disclosure of user information in the present disclosure comply with the provisions of relevant laws and regulations and do not violate public order and good customs.

[0052] To solve the above technical problems, in some embodiments of the present disclosure, the measured slip ratios corresponding to a plurality of measured accelerations of the target vehicle within a set firing period are obtained; the slip rate standard value corresponding to each measured acceleration is obtained by querying the mapping relationship table of acceleration and slip rate according to each measured acceleration; the present disclosure automatically performs tire wear detection based on the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration to obtain the tire wear detection result of the target vehicle, thereby improving the tire wear detection efficiency and improving the accuracy of the detection result.

[0053] The technical solutions provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0054] Figure 1 A flowchart of a tire wear detection method provided by an exemplary embodiment of the present disclosure is shown in FIG. 1. As shown in FIG. 1, the method comprises the following steps. Figure 1

[0055] S101: Obtain the measured slip ratios corresponding to a plurality of measured accelerations of the target vehicle within a set firing period;

[0056] S102: Obtain the slip rate standard value corresponding to each measured acceleration by querying the mapping relationship table of acceleration and slip rate according to each measured acceleration;

[0057] S103: Perform tire wear detection based on the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration to obtain the tire wear detection result of the target vehicle.

[0058] In the present embodiment, the execution subject of the above method is a terminal device or a server.

[0059] ​The terminal device includes, but is not limited to, a mobile station (MS), a mobile terminal, a mobile telephone, a handset, a portable equipment, and the like. The terminal device can communicate with one or more core networks through a radio access network (RAN). For example, the terminal device can be a mobile phone (also referred to as a "cellular" phone), a computer with wireless communication functions, and the like. The terminal device can also be a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an AR terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical treatment, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The operating system installed on the terminal device includes, but is not limited to, an IOS, an Android, a windows, a linux, a Mac OS, and the like. The terminal device can be referred to by different names in different networks, such as a user equipment, a mobile station, a subscriber unit, a station, a cellular phone, a personal digital assistant, a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop station, a television, and the like. For the sake of convenience, the terminal device is referred to as a terminal device in this embodiment.

[0060] In this embodiment, the implementation form of the server is not limited. For example, the server can be a conventional server, a cloud server, a cloud host, a virtual center, and the like. The server mainly includes a processor, a hard disk, a memory, a system bus, and the like, and has a general computer architecture type.

[0061] In this embodiment, the measured slip ratios corresponding to the plurality of measured accelerations of the target vehicle in the set ignition period are obtained; the slip rate standard value corresponding to each measured acceleration is obtained by querying the mapping relationship table of the acceleration and the slip rate according to each measured acceleration; the tire wear detection result of the target vehicle is obtained by automatically performing tire wear detection based on the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration, the tire wear detection efficiency is improved, and the detection result accuracy is improved.

[0062] Figure 2An architecture diagram of a vehicle tire wear warning system is provided for the exemplary embodiments of the present disclosure. As shown in Figure 2 The vehicle tire wear warning system includes a sensor module, a map module, a data processing module, and a warning module.

[0063] The sensor module includes an IMU module (inertial measurement unit), a tire pressure sensor, a vehicle speed sensor, and a wheel speed sensor. The IMU module is used to monitor the slope and acceleration of the vehicle. The tire pressure sensor is used to monitor the tire pressure. The vehicle speed sensor is used to obtain the real-time vehicle speed. The wheel speed sensor is used to obtain the wheel circumferential speed (wheel linear speed).

[0064] The map module is a software module of the cockpit domain controller, which is used to obtain the road surface type information of the location of the vehicle. The road surface type information of the location of the vehicle is obtained through GPS positioning and map data.

[0065] The data processing module is a software module of the intelligent driving domain controller, which is used to receive data from each sensor module and perform data processing and analysis. The data from each sensor module is received, combined with the data from the slip rate monitoring module, and processed and analyzed.

[0066] The warning module is a software module of the cockpit domain controller, which is used to remind the driver to replace the tire when the tire wear degree exceeds the threshold. When the tire wear degree exceeds the threshold, the driver is reminded to replace the tire through the vehicle display screen, voice prompt, etc.

[0067] In some embodiments of the present disclosure, the measured slip rate corresponding to the measured acceleration of the target vehicle within the set firing period is obtained. One possible way is to use the vehicle speed sensor installed on the target vehicle to collect the actual vehicle speed of the target vehicle under multiple measured accelerations within the set firing period of the target vehicle; use the wheel speed sensor installed on the target vehicle to collect the wheel circumferential speed of the target vehicle under multiple measured accelerations; and calculate the measured slip rate corresponding to the multiple measured accelerations according to the actual vehicle speed and the wheel circumferential speed. The calculation formula of the measured slip rate is as follows:

[0068] S=(vw-v) / vw×100%,

[0069] where v is the actual vehicle speed (longitudinal speed of the wheel center), and vw is the wheel circumferential speed.

[0070] When the vehicle brakes, the actual speed of the vehicle is less than the circumferential speed of the wheel, and at this time the slip rate s is positive; during the acceleration driving process of the vehicle, the actual speed of the vehicle is greater than the circumferential speed of the wheel, and at this time the slip rate is negative.

[0071] In the above embodiment, in each ignition cycle, the slip ratio monitoring module monitors the slip ratio of each tire in real time. The IMU module monitors the slope of the vehicle, and records data when the slope is less than 5%. The map module obtains the road surface type at the location of the vehicle, and records data when the road surface type is an urban road. The tire pressure sensor monitors the current tire pressure. The acceleration sensor monitors the acceleration of the vehicle, and records data when the acceleration is not equal to 0. The data processing module receives the data of the above-mentioned sensor modules, and combines the data of the slip ratio monitoring module to count the slip ratio of each tire under the conditions (slope less than 5%, road surface type is an urban road, and acceleration is not equal to 0). The present disclosure combines multiple factors, and the system can more accurately determine the wear degree of the tire and reduce misjudgment. In each ignition cycle, the system monitors and counts the slip ratio of the tire under specific conditions (such as slope less than 5%, road surface type is an urban road, and acceleration is not equal to 0) in real time. This real-time dynamic monitoring method can timely discover tire wear problems and reduce the probability of safety accidents caused by excessive tire wear.

[0072] Under the conditions, the slip ratio value under the actual acceleration of the vehicle is counted with a minimum resolution of 0.1 m / s2. For the case of multiple system accelerations, the maximum value of the acceleration in this scenario is taken as the final sampling value. In this ignition cycle, a discrete acceleration and slip ratio corresponding sampling result can be obtained, and the total sampling data is denoted as M.

[0073] It should be noted that a mapping relationship table of acceleration and slip ratio is prepared in advance. Specifically, when the vehicle is manufactured, the most slippery tire allowed for safe driving is used to count the slip ratio threshold of each tire under the above conditions (slope less than 5%, road surface type is an urban road, and acceleration is not equal to 0). According to the regional road standard and the characteristics of commonly used passenger cars, the acceleration range is approximately 0.2-1.5 m / s2, denoted as [A1, A2], A1 is the lower limit of acceleration, and A2 is the upper limit of acceleration; the deceleration is denoted as a negative value in the range of -8- -1 m / s2, denoted as [D1, D2], D1 is the lower limit of deceleration, and D2 is the upper limit of deceleration. This range can be determined according to the vehicle model. The slip ratio and acceleration relationship of the most slippery tire allowed for the vehicle is counted with a minimum resolution of 0.1 m / s2, and a mapping relationship table of acceleration and slip ratio in the range of acceleration [A1, A2] and [D1, D2] is obtained. By using the most slippery tire allowed for safe driving when the vehicle is manufactured, the slip ratio threshold is counted under specific conditions (such as slope less than 5%, road surface type is an urban road, and acceleration is not equal to 0). This calibration method can ensure that the system has high accuracy and reliability in actual use. Through factory calibration, the application of the system on different vehicles has consistency.

[0074] In some embodiments of the present disclosure, according to each measured acceleration, a mapping table of acceleration and slip ratio is queried to obtain a slip ratio standard value corresponding to each measured acceleration. The present disclosure can quickly and accurately query the corresponding slip ratio standard value according to the measured acceleration by pre-preparing the mapping table of acceleration and slip ratio.

[0075] In some embodiments of the present disclosure, according to the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration, tire wear detection is performed to obtain a tire wear detection result of the target vehicle. One implementable way is to calculate a standard-exceeding ratio corresponding to each measured acceleration according to the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration; determine a first weighting coefficient sum according to the standard-exceeding ratio corresponding to the first acceleration; wherein the first acceleration is an acceleration in the multiple measured accelerations whose measured slip ratio is greater than or equal to the slip ratio standard value; determine a second weighting coefficient sum according to the standard-exceeding ratio corresponding to the second acceleration; wherein the second acceleration is an acceleration in the multiple measured accelerations whose measured slip ratio is less than the slip ratio standard value; and determine the tire wear detection result according to the first weighting coefficient sum and the second weighting coefficient sum. The embodiments of the present disclosure calculate the standard-exceeding ratio between the measured slip ratio and the slip ratio standard value, and determine the weighting coefficient sums corresponding to the first acceleration and the second acceleration based on the standard-exceeding ratio, thereby comprehensively evaluating the tire wear state. This method fully considers the difference in tire slip characteristics under different acceleration conditions, and improves the accuracy and reliability of tire wear detection.

[0076] In the above embodiments, the standard-exceeding ratio corresponding to each measured acceleration is calculated according to the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration. One implementable way is to calculate the difference between the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration; and take the ratio of the difference to the measured slip ratio as the standard-exceeding ratio corresponding to each measured acceleration. It should be noted that for the sampling results of the measured accelerations whose measured slip ratio is greater than or equal to the slip ratio standard value, the result is recorded as T, and for the sampling results of the measured accelerations whose measured slip ratio is less than the slip ratio standard value, the result is recorded as F. For each sampling result, the standard-exceeding ratio Cn is calculated, the slip ratio standard value s corresponding to the acceleration is obtained from the mapping table of acceleration and slip ratio, and for the nth(1≤n≤M) sampling, the measured slip ratio is sn, and the standard-exceeding ratio Cn=(sn-s) / sn. The statistical results are as shown in Table 1.

[0077] Measured acceleration an Measured slip rate sn Statistical result Rn Exceedance ratio Cn a1 s1 T / F C1 a2 s2 T / F C2 … … … … aM sM T / F CM

[0078] Table 1

[0079] It should be noted that the weighted coefficient of each sampling result is calculated. The calculation formula of the weighted coefficient is as follows:

[0080] Qn=Cn / (C1+C2+…+Cn).

[0081] In particular, the over-standard ratio of each sampling result can be directly taken as the weighted coefficient of the sampling.

[0082] The present disclosure adopts a statistical strategy, fully considers the diversity of the environment in the actual driving process, takes the difference value of the slip rate data as the confidence parameter, and improves the reliability of the final statistical result.

[0083] Accordingly, the sum of the second weighted coefficients is obtained by adding the over-standard ratios corresponding to the second acceleration. Wherein, the sum of the first weighted coefficients is denoted as QT, and the sum of the second weighted coefficients is denoted as QF.

[0084] Another calculation method of the sum of the first weighted coefficients is that the weighted coefficient corresponding to each measured acceleration is calculated according to the over-standard ratio corresponding to each measured acceleration and the sum of the over-standard ratios corresponding to the plurality of measured accelerations; and the sum of the weighted coefficients corresponding to the first acceleration is taken as the sum of the first weighted coefficients. Similarly, the weighted coefficient corresponding to each measured acceleration is calculated according to the over-standard ratio corresponding to each measured acceleration and the sum of the over-standard ratios corresponding to the plurality of measured accelerations; and the sum of the weighted coefficients corresponding to the second acceleration is taken as the sum of the second weighted coefficients.

[0085] In some embodiments of the present disclosure, the tire wear detection result is determined according to the sum of the first weighted coefficients and the sum of the second weighted coefficients. One realizable way is that in the case that the sum of the first weighted coefficients is greater than or equal to the sum of the second weighted coefficients, it is determined that the tire wear detection result is that the tire detection is unqualified; and in the case that the sum of the first weighted coefficients is less than the sum of the second weighted coefficients, it is determined that the tire wear detection result is that the tire detection is qualified. Wherein, in the case that QT≥QF, the slip rate is over-standard in the ignition cycle, and the tire wear detection result is that the tire detection is unqualified; and in the case that QT

[0086] In some embodiments of the present disclosure, after determining that the tire wear detection result is that the tire detection is unqualified, the warning module is triggered to remind the driver to replace the tire. Wherein, the pre-warning prompt mode includes but is not limited to the following two modes:

[0087] The first early warning prompt mode is to display early warning prompt information on the vehicle display screen of the target vehicle. The specific content of the early warning prompt information is not limited in the present disclosure, and can be adjusted according to the actual situation.

[0088] The second early warning prompt mode is to control the target vehicle to play early warning prompt voice. The specific content of the early warning prompt voice is not limited in the present disclosure, and can be adjusted according to the actual situation.

[0089] When the tire slip rate exceeds the calibrated value, the present disclosure automatically triggers the early warning module to remind the driver to replace the tire. This intelligent early warning mechanism can help the driver to take timely measures to avoid accidents caused by tire wear. The system automatically monitors and reminds, without the need for regular manual inspection, improving user experience.

[0090] The present disclosure realizes accurate evaluation and timely warning of the degree of tire wear through multi-factor comprehensive monitoring, real-time dynamic monitoring, slip rate threshold calibration method, intelligent early warning mechanism, and data processing and analysis. The accuracy and real-time performance of tire wear monitoring are improved, and the driving safety and user experience of the vehicle are improved.

[0091] Figure 3 A structure diagram of a tire wear detection device 30 is provided for the exemplary embodiments of the present disclosure. As shown in the figure, the tire wear detection device 30 includes an acquisition module 31, a query module 32, and a detection module 33. Figure 3

[0092] The acquisition module 31 is configured to acquire a plurality of measured slip rates corresponding to a plurality of measured accelerations of the target vehicle within a set firing period.

[0093] The query module 32 is configured to query a mapping relationship table of acceleration and slip rate according to each measured acceleration to obtain a slip rate standard value corresponding to each measured acceleration.

[0094] The detection module 33 is configured to perform tire wear detection according to the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration to obtain a tire wear detection result of the target vehicle.

[0095] Optionally, when acquiring the measured slip rates corresponding to the plurality of measured accelerations of the target vehicle within the set firing period, the acquisition module 31 is configured to:

[0096] Within the set firing period of the target vehicle, a vehicle actual speed of the target vehicle under a plurality of measured accelerations is collected by using a vehicle speed sensor installed on the target vehicle.

[0097] The wheel speed of the target vehicle under a plurality of measured accelerations is collected by using a wheel speed sensor installed on the target vehicle. ​

[0098] According to the actual speed of the vehicle and the circumferential speed of the wheel, a plurality of measured slip rates corresponding to the plurality of measured accelerations are calculated.

[0099] Optionally, when the detection module 33 detects the tire wear of the target vehicle according to the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration, the detection module 33 is configured to:

[0100] According to the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration, a ratio of exceeding a standard corresponding to each measured acceleration is calculated.

[0101] According to the ratio of exceeding a standard corresponding to the first acceleration, a first weighting coefficient sum is determined; wherein the first acceleration is an acceleration in the plurality of measured accelerations whose measured slip rate is greater than or equal to the slip rate standard value.

[0102] According to the ratio of exceeding a standard corresponding to the second acceleration, a second weighting coefficient sum is determined; wherein the second acceleration is an acceleration in the plurality of measured accelerations whose measured slip rate is less than the slip rate standard value.

[0103] According to the first weighting coefficient sum and the second weighting coefficient sum, the tire wear detection result is determined.

[0104] Optionally, when the detection module 33 calculates the ratio of exceeding a standard corresponding to each measured acceleration according to the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration, the detection module 33 is configured to:

[0105] The difference between the measured slip rate corresponding to each measured acceleration and the slip rate standard value corresponding to each measured acceleration is calculated.

[0106] The ratio of the difference to the measured slip rate is taken as the ratio of exceeding a standard corresponding to each measured acceleration.

[0107] Optionally, when the detection module 33 determines the first weighting coefficient sum according to the ratio of exceeding a standard corresponding to the first acceleration; wherein the first acceleration is an acceleration in the plurality of measured accelerations whose measured slip rate is greater than or equal to the slip rate standard value, the detection module 33 is configured to:

[0108] The ratio of exceeding a standard corresponding to the first acceleration is added to obtain the first weighting coefficient sum.

[0109] Optionally, when the detection module 33 determines the first weighting coefficient sum according to the ratio of exceeding a standard corresponding to the first acceleration; wherein the first acceleration is an acceleration in the plurality of measured accelerations whose measured slip rate is greater than or equal to the slip rate standard value, the detection module 33 is configured to:

[0110] According to the exceeding standard ratio corresponding to each measured acceleration and the sum of the exceeding standard ratios corresponding to the plurality of measured accelerations, a weighting coefficient corresponding to each measured acceleration is calculated;

[0111] The sum of the weighting coefficients corresponding to the first acceleration is taken as a first weighting coefficient sum.

[0112] Optionally, the detection module 33 is configured to:

[0113] In the case that the first weighting coefficient sum is greater than or equal to the second weighting coefficient sum, it is determined that the tire wear detection result is that the tire detection is unqualified.

[0114] In the case that the first weighting coefficient sum is less than the second weighting coefficient sum, it is determined that the tire wear detection result is that the tire detection is qualified.

[0115] Optionally, after determining that the tire wear detection result is that the tire detection is unqualified, the detection module 33 is further configured to:

[0116] displaying a warning prompt information on a vehicle-mounted display screen of the target vehicle; or,

[0117] controlling the target vehicle to play a warning prompt voice.

[0118] As to the apparatus in the above-mentioned embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0119] Figure 4 A structural schematic diagram of an electronic device is provided for the exemplary embodiments of the present disclosure. As shown in Figure 4 The electronic device includes a memory 41 and a processor 42. In addition, the electronic device also includes a power supply component 43 and a communication component 44.

[0120] The memory 41 is configured to store computer programs and can be configured to store other various data to support operations on the electronic device. Examples of these data include instructions for operating any application or method on the electronic device.

[0121] The memory 41 can be realized by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0122] The communication component 44 is configured to perform data transmission with other devices.

[0123] The processor 42 can execute computer instructions stored in the memory 41 to obtain a plurality of measured slip ratios corresponding to a plurality of measured accelerations of the target vehicle within a set firing period; query the mapping table of the acceleration and the slip ratio according to each measured acceleration to obtain a slip ratio standard value corresponding to each measured acceleration; and perform tire wear detection according to the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration to obtain a tire wear detection result of the target vehicle.

[0124] Correspondingly, the embodiments of the present disclosure further provide a computer readable storage medium storing a computer program. When the computer readable storage medium stores the computer program and the computer program is executed by one or more processors, the one or more processors are caused to execute Figure 1 the steps in the method embodiments.

[0125] Correspondingly, the embodiments of the present disclosure further provide a computer program product, which includes a computer program / instruction. When the computer program / instruction is executed by a processor, the processor is caused to execute Figure 1 the steps in the method embodiments.

[0126] The communication component in the above Figure 4 is configured to facilitate wired or wireless communication between the device where the communication component is located and other devices. The device where the communication component is located can access a wireless network based on a communication standard, such as a WiFi, 2G, 3G, 4G / LTE, 5G, or the like, or a combination thereof. In an example embodiment, the communication component receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0127] The power component in the above Figure 4 provides power to various components of the device where the power component is located. The power component can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device where the power component is located.

[0128] The electronic device described above further includes a display screen and an audio component.

[0129] The display includes a screen, which can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding movement, but also detect duration and pressure related to the touching or sliding operation.

[0130] An audio component can be configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC) that is configured to receive external audio signals when the device in which the audio component is installed is in an operating mode such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory or transmitted via the communication component. In some embodiments, the audio component also includes a speaker to output audio signals.

[0131] Those skilled in the art will appreciate that embodiments of the disclosure can be supplied as a method, a system, or a computer program product. Therefore, the disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Also, the disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) having computer-usable program code embodied therein.

[0132] The disclosure is described with reference to the flowcharts and / or block diagrams of the methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions, which are executed via the processor of the computer or other programmable data processing apparatus, generate an apparatus that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided. Figure 1 The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided. The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided.

[0133] The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided. Figure 1 The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided. Figure 1 The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided. The flow or flows and / or blocks in a flowchart and / or a combination of flows and / or blocks in a flowchart can be implemented by computer program instructions. Although the computer program instructions can be written as computer programs, flows, or blocks, they can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a specific manner. Thus, a computer program product including a computer-readable storage medium storing the computer program instructions can be provided.

[0134] These computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 Figure 1

[0135] In one typical configuration, the computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0136] The memory can include non-persistent memory and / or persistent memory, both of which can be volatile and / or non-volatile. Non-persistent memory can include, for example, random access memory (RAM), which can be static RAM (SRAM) or dynamic RAM (DRAM), and non-persistent memory can also include registers within the processor(s). Persistent memory can include, for example, read-only memory (ROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory, just to name a few. The memory is an example of computer readable media.

[0137] Computer readable media includes permanent and non-permanent, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile discs (DVDs) or other optical storage, magnetic cassettes, magnetic disks storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer readable media does not include transitory media, such as modulated data signals and carrier waves.

[0138] ​​It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0139] The above are merely specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to these embodiments, but is to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A tire wear detection method, characterized in that: include: Obtaining measured slip rates corresponding to multiple measured accelerations of the target vehicle within a set ignition cycle; According to each of the measured accelerations, querying a mapping relationship table between acceleration and slip rate to obtain a standard value of slip rate corresponding to each of the measured accelerations; A tire wear detection is performed according to the measured slip ratio corresponding to each of the measured accelerations and the slip ratio standard value corresponding to each of the measured accelerations to obtain a tire wear detection result of the target vehicle.

2. The method according to claim 1, characterized in that The obtaining of the measured slip rates corresponding to the plurality of measured accelerations of the target vehicle within the set ignition cycle includes: During the set ignition cycle of the target vehicle, using a vehicle speed sensor installed on the target vehicle, collecting the actual vehicle speed of the target vehicle under the plurality of measured accelerations; Using a wheel speed sensor installed on the target vehicle, collecting the peripheral speed of the wheel of the target vehicle under the plurality of measured accelerations; Calculate a plurality of measured slip rates corresponding to the measured accelerations according to the actual vehicle speed and the wheel peripheral speed.

3. The method according to claim 1, characterized in that The tire wear detection is performed according to the measured slip rate corresponding to each of the measured accelerations and the slip rate standard value corresponding to each of the measured accelerations to obtain the tire wear detection result of the target vehicle, including: Calculating the exceeding standard ratio corresponding to each measured acceleration according to the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration; Determining a first weighted coefficient sum based on an exceeding-standard ratio corresponding to a first acceleration; wherein the first acceleration is an acceleration whose measured slip ratio is greater than or equal to a standard slip ratio value among a plurality of measured accelerations; Determining a second weighted coefficient sum based on an exceeding-standard ratio corresponding to a second acceleration; wherein the second acceleration is an acceleration whose measured slip ratio is less than a standard slip ratio value among the plurality of measured accelerations; A tire wear detection result is determined according to the sum of the first weighting coefficients and the sum of the second weighting coefficients.

4. The method according to claim 3, characterized in that Calculating the exceeding standard ratio corresponding to each measured acceleration according to the measured slip ratio corresponding to each measured acceleration and the slip ratio standard value corresponding to each measured acceleration includes: Calculating a difference between a measured slip rate corresponding to each of the measured accelerations and a standard value of the slip rate corresponding to each of the measured accelerations; The ratio of the difference to the measured slip rate is used as the exceeding-standard ratio corresponding to each measured acceleration.

5. The method according to claim 3, characterized in that The method of determining the sum of the first weighted coefficients according to the exceeding-standard ratio corresponding to the first acceleration, wherein the first acceleration is an acceleration whose measured slip rate is greater than or equal to the slip rate standard value among the multiple measured accelerations, includes: The exceeding-standard ratios corresponding to the first accelerations are added together to obtain the sum of the first weighting coefficients.

6. The method according to claim 3, characterized in that The method of determining the sum of the first weighted coefficients according to the exceeding-standard ratio corresponding to the first acceleration, wherein the first acceleration is an acceleration whose measured slip rate is greater than or equal to the slip rate standard value among the multiple measured accelerations, includes: Calculating a weighting coefficient corresponding to each measured acceleration according to the exceeding rate corresponding to each measured acceleration and the sum of the exceeding rate corresponding to a plurality of measured accelerations; The sum of the weighting coefficients corresponding to the first acceleration is used as the sum of the first weighting coefficients.

7. The method according to claim 3, characterized in that Determining a tire wear detection result according to the sum of the first weighting coefficients and the sum of the second weighting coefficients includes: If the sum of the first weighting coefficients is greater than or equal to the sum of the second weighting coefficients, determining that the tire wear detection result is tire detection failure; When the sum of the first weighting coefficients is less than the sum of the second weighting coefficients, it is determined that the tire wear detection result is qualified.

8. The method according to claim 7, characterized in that After determining that the tire wear detection result is tire detection failure, the method further includes: Displaying a warning message on the target vehicle's onboard display screen; or, Control the target vehicle to play a warning prompt voice.

9. A tire wear detection device, characterized in that: include: An acquisition module, configured to acquire a measured slip rate corresponding to a plurality of measured accelerations of a target vehicle within a set ignition cycle; a query module, configured to query a mapping relationship table between acceleration and slip rate according to each of the measured accelerations, and obtain a standard value of slip rate corresponding to each of the measured accelerations; The detection module is used to perform tire wear detection according to the measured slip rate corresponding to each of the measured accelerations and the slip rate standard value corresponding to each of the measured accelerations, so as to obtain a tire wear detection result of the target vehicle.

10. An electronic device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute instructions to implement each step in the method according to any one of claims 1 to 8.

Images