Tire pressure detection method for vehicle, related device and vehicle

Abstract

The application provides a tire pressure detection method of a vehicle, related equipment and the vehicle. The method comprises the following steps: acquiring driving data of the vehicle and a first tire pressure value of a tire pressure sensor in real time. Current tire pressure values of each wheel of the vehicle are calculated based on the driving data. In response to a difference between the first tire pressure value and the current tire pressure value of the target wheel being less than a preset threshold, each current tire pressure value can be taken as a target tire pressure value of each wheel. The first tire pressure value of the target wheel is acquired by installing a tire pressure sensor in the target wheel, and the current tire pressure value calculated by the driving data is combined, so that the tire pressure values of each wheel can be obtained without installing a tire pressure sensor in each wheel. The tire pressure detection method of the vehicle provided by the application greatly reduces the cost of tire pressure detection on the basis of ensuring that the tire pressure values with high accuracy are obtained, and the detection method is convenient and reliable.

Description

Vehicle tire pressure testing methods, related equipment and vehicles Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a tire pressure detection method, related equipment, and vehicle for a vehicle. Background Technology

[0002] Vehicle tire pressure is monitored by a Tire Pressure Monitoring System (TPMS). TPMSs are divided into direct and indirect types. Direct TPMSs obtain tire pressure values ​​through tire pressure sensors installed in each wheel. While the accuracy of the detected tire pressure is high, the tire pressure sensors are also more expensive. Indirect TPMSs, on the other hand, do not require tire pressure sensors installed in the wheels, saving on monitoring costs, but the accuracy of the tire pressure calculated indirectly is lower. Neither direct nor indirect TPMS can perfectly balance cost and accuracy in tire pressure monitoring. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a tire pressure detection method, related equipment and vehicle for a vehicle, so as to solve the problems of high cost or low accuracy of tire pressure detection.

[0004] To achieve the above objectives, a first aspect of this application provides a tire pressure detection method for a vehicle, wherein a tire pressure sensor is installed in a target wheel of the vehicle; the method includes:

[0005] Real-time acquisition of vehicle driving data and the first tire pressure value of the tire pressure sensor;

[0006] The current tire pressure of each wheel in the vehicle is calculated based on the driving data;

[0007] In response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being less than a preset threshold, each current tire pressure value is used as the target tire pressure value for each wheel.

[0008] Optionally, before setting each current tire pressure value as the target tire pressure value for each wheel, the following steps are included:

[0009] The current tire pressure values ​​are corrected based on the difference.

[0010] Optionally, the step of correcting each current tire pressure value based on the difference includes:

[0011] The product of the difference and the preset correction coefficient is used as the correction value;

[0012] The sum of the current tire pressure value and the correction value is used as the corrected current tire pressure value.

[0013] Optionally, the driving data includes vehicle speed and the rolling speed of each wheel;

[0014] The calculation of the current tire pressure value of each wheel in the vehicle based on the driving data includes:

[0015] The rolling radius of each wheel is determined based on the vehicle speed and the rolling speed.

[0016] The current tire pressure value of each wheel is determined based on the rolling radius, the vehicle speed, and preset vehicle parameters.

[0017] Optionally, the method further includes:

[0018] In response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being greater than or equal to the preset threshold, the current state of the vehicle is adjusted to the preset state;

[0019] Under the preset state, the second tire pressure value of the tire pressure sensor is continuously collected within a preset time period;

[0020] The preset vehicle parameters are corrected based on the second tire pressure value, wherein the preset vehicle parameters are used to calculate the current tire pressure value.

[0021] Optionally, adjusting the current state of the vehicle to a preset state includes:

[0022] Adjust the current tire pressure of each wheel to the preset standard tire pressure, and adjust the current vehicle speed to the preset vehicle speed.

[0023] A second aspect of this application also provides a tire pressure monitoring device for a vehicle, comprising:

[0024] The acquisition module is configured to acquire the vehicle's driving data and the first tire pressure value of the tire pressure sensor in real time;

[0025] The calculation module is configured to calculate the current tire pressure value of each wheel in the vehicle based on the driving data;

[0026] The determination module is configured to, in response to a situation where the difference between the first tire pressure value and the current tire pressure value of the target wheel is less than a preset threshold, use each current tire pressure value as the target tire pressure value for each wheel.

[0027] A third aspect of this application also provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor, when executing the computer program, implements the method as described in the first aspect.

[0028] A fourth aspect of this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method as described in the first aspect.

[0029] The fifth aspect of this application also provides a vehicle including electronic equipment as described in the third aspect.

[0030] As described above, the tire pressure detection method, related equipment, and vehicle provided in this application include real-time acquisition of vehicle driving data and the first tire pressure value from the tire pressure sensor to promptly understand the vehicle's tire pressure status and improve driving safety. The method calculates the current tire pressure value of each wheel in the vehicle based on the driving data, obtaining the tire pressure value indirectly, which effectively reduces the number of sensors deployed in the vehicle and lowers the cost of tire pressure detection. When the difference between the first tire pressure value and the current tire pressure value of the target wheel is less than a preset threshold, it indicates that the currently calculated tire pressure value is highly accurate and reflects the vehicle's current true tire pressure status; therefore, each current tire pressure value can be used as the target tire pressure value for each wheel. By installing a tire pressure sensor in the target wheel to obtain the first tire pressure value of the target wheel, and combining it with the current tire pressure value calculated from the driving data, a relatively accurate tire pressure value for each wheel can be obtained without installing tire pressure sensors in every wheel. The tire pressure detection method provided in this application significantly reduces the cost of tire pressure detection while ensuring high accuracy, and the detection method is convenient and reliable. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 is a schematic flowchart of the tire pressure detection method for a vehicle according to an embodiment of this application;

[0033] Figure 2 is a flowchart illustrating the preset vehicle parameter correction method according to an embodiment of this application;

[0034] Figure 3 is a schematic diagram of the tire pressure detection method for a vehicle according to an embodiment of this application;

[0035] Figure 4 is a schematic diagram of the hardware structure of the electronic device according to an embodiment of this application. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0037] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] Currently, automobiles have become a common means of transportation. Stable tire pressure is a prerequisite for smooth vehicle operation. When tire pressure exceeds the normal range, it poses a significant safety hazard and can even cause serious traffic accidents. Overinflation leading to tire blowouts is one of the causes affecting vehicle safety. Real-time monitoring of tire pressure allows drivers to promptly detect abnormal tire conditions, prevent blowouts, and reduce safety risks. Therefore, tire pressure monitoring technology is increasingly being used in automobiles to improve driving safety.

[0039] Tire pressure monitoring (TPMS) refers to the real-time detection of tire pressure during driving, providing feedback to the driver on conditions such as tire leaks, underinflation, and overinflation to ensure driving safety. It plays a crucial role in practical vehicle applications. TPMS includes direct and indirect types.

[0040] Direct TPMS offers higher accuracy, capable of detecting, displaying, and alerting on tire pressure regardless of whether the vehicle is moving or stationary. However, tire pressure sensors are cumbersome to install and expensive. Indirect TPMS calculates tire pressure indirectly using parameters such as wheel speed and frequency, leveraging a tire mechanical model. This eliminates the need for additional devices and reduces detection costs. However, its accuracy is insufficient, its operating conditions are limited, and it is susceptible to false alarms. Therefore, this application proposes a tire pressure detection method for vehicles to address the issue of balancing detection cost and accuracy in related technologies.

[0041] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] This application provides a tire pressure detection method for a vehicle. This method can be integrated into an on-board device with computing capabilities, such as a vehicle controller or vehicle infotainment system. This on-board device needs to be connected to the powertrain controller area network bus (PT_CAN) to obtain driving data related to the vehicle's power domain. Tire pressure sensors are installed in the target wheels of the vehicle. Referring to Figure 1, the method includes the following steps:

[0043] Step 102: Acquire the vehicle's driving data and the first tire pressure value of the tire pressure sensor in real time.

[0044] Specifically, the driving data in this step is data used to characterize the vehicle's driving status, which may include vehicle speed, wheel rotation speed, etc. Tire pressure sensors are installed in the target wheel to detect its tire pressure value. The target wheel can be any wheel of the vehicle, such as the left front wheel, right front wheel, left rear wheel, or right rear wheel. Tire pressure sensors are not required on the other wheels of the vehicle. Real-time acquisition of driving data and initial tire pressure values ​​facilitates real-time monitoring of whether the vehicle's tire pressure is normal, improving vehicle driving safety.

[0045] Step 104: Calculate the current tire pressure value of each wheel in the vehicle based on the driving data.

[0046] Calculating tire pressure using driving data is an indirect method. At a given vehicle speed, different tire pressure values ​​correspond to different rolling radii. Once the vehicle speed and rolling radius are determined, the current tire pressure can be calculated. This calculation-based method eliminates the need for tire pressure sensors, reducing tire pressure monitoring costs.

[0047] Step 106: In response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being less than a preset threshold, each current tire pressure value is used as the target tire pressure value for each wheel.

[0048] If the difference between the current tire pressure value of the target wheel equipped with the tire pressure sensor and the first tire pressure value is small, meaning the current tire pressure value obtained through indirect calculation is close to the true tire pressure value, it indicates that the accuracy of the current tire pressure value is high. This value can be directly used as the target tire pressure value for each wheel and displayed on the dashboard to provide the user with the current tire pressure data. For example, the preset threshold in this step can be 0.05 MPa. Furthermore, when displaying the tire pressure of each wheel on the dashboard, the target wheel can display the first tire pressure value detected by the tire pressure sensor, while other wheels can display the current tire pressure value obtained through calculation; alternatively, all wheels can display their current tire pressure values.

[0049] Based on steps 102 to 106 above, the vehicle tire pressure detection method provided in this embodiment includes: acquiring vehicle driving data and the first tire pressure value of the tire pressure sensor in real time, so as to understand the tire pressure status of the vehicle in a timely manner and improve driving safety. The current tire pressure value of each wheel in the vehicle is calculated based on the driving data. Obtaining the tire pressure value through indirect calculation can effectively reduce the number of sensors deployed in the vehicle and reduce the cost of tire pressure detection. When the difference between the first tire pressure value and the current tire pressure value of the target wheel is less than a preset threshold, it indicates that the currently calculated tire pressure value is highly accurate and can reflect the vehicle's current true tire pressure status. Therefore, each current tire pressure value can be used as the target tire pressure value for each wheel. By installing a tire pressure sensor in the target wheel to obtain the first tire pressure value of the target wheel, and combining it with the current tire pressure value calculated from the driving data, it is not necessary to install tire pressure sensors in each wheel to obtain a relatively accurate tire pressure value for each wheel. The vehicle tire pressure detection method provided in this application greatly reduces the cost of tire pressure detection while ensuring a highly accurate tire pressure value, and the detection method is convenient and reliable.

[0050] Because the tire pressure value obtained by indirect calculation is subject to many interference factors, the calculated tire pressure value will be different under different road conditions, vehicle speed and other conditions. In order to minimize the error of the tire pressure value obtained by indirect calculation, the calculated tire pressure value is corrected before the tire pressure value is displayed on the instrument panel, so as to reduce the tire pressure error. The specific correction method is explained through the following examples.

[0051] In some embodiments, before setting each current tire pressure value as the target tire pressure value for each wheel, the method includes: correcting each current tire pressure value based on the difference.

[0052] Specifically, each current tire pressure value can be corrected based on a correction value. This correction value is determined by the relationship between the first tire pressure value detected by the tire pressure sensor and the current tire pressure value of the target wheel, i.e., by the difference between the first and current tire pressure values. The correction value can adjust the current tire pressure value to make it closer to the true value, i.e., closer to the detected tire pressure value of the target wheel, thus reducing tire pressure error.

[0053] In some embodiments, correcting each current tire pressure value based on the difference includes:

[0054] The product of the difference and the preset correction coefficient is used as the correction value;

[0055] The sum of the current tire pressure value and the correction value is used as the corrected current tire pressure value.

[0056] Specifically, the correction value can be the product of the difference and a preset correction coefficient. For example, the preset correction coefficient can be 60%, and the correction value = difference * 60%. After obtaining the correction value, the current tire pressure value is added to the correction value to obtain the corrected current tire pressure value, which is displayed on the vehicle's dashboard. For example, if the first tire pressure value is 0.23 MPa, the calculated current tire pressure value is 0.20 MPa, the difference is 0.03 MPa, and the correction value = 0.03 MPa * 60% = 0.018 MPa. The corrected current tire pressure value = 0.018 MPa + 0.20 MPa = 0.218 MPa. The tire pressure value displayed on the dashboard is 0.218 MPa. By correcting the current tire pressure value, the accuracy of the calculated current tire pressure value can be improved, making it closer to the detected tire pressure value.

[0057] In some embodiments, the driving data includes vehicle speed and the rolling speed of each wheel;

[0058] The calculation of the current tire pressure value of each wheel in the vehicle based on the driving data includes:

[0059] The rolling radius of each wheel is determined based on the vehicle speed and the rolling speed.

[0060] The current tire pressure value of each wheel is determined based on the rolling radius, the vehicle speed, and preset vehicle parameters.

[0061] Specifically, the rolling radius of each wheel is determined based on the vehicle speed and rolling speed using equations (1) to (3):

[0062] R = S / 2πn (1)

[0063] S=v*t (2)

[0064] n=w*t (3)

[0065] Where R represents the rolling radius, S represents the distance the wheel rolls when the wheel rotates n times, v represents the vehicle speed, w represents the rolling speed, and t represents the time it takes for the wheel to rotate n times.

[0066] Based on the rolling radius, the vehicle speed, and preset vehicle parameters, the current tire pressure value of each wheel is determined by equation (4):

[0067] P(k)=[R(k)-R0(k)-K v *vK m *M(k)] / K P (4)

[0068] Where P(k) represents the current tire pressure of the k-th wheel, R(k) represents the rolling radius of the k-th wheel, R0(k) represents the initial rolling radius of the k-th wheel, which is the rolling radius when the vehicle speed is zero and the tire pressure is zero, and K v This represents the coefficient of influence of vehicle speed on the wheel rolling radius, where v represents vehicle speed and K is the coefficient of influence. m M(k) represents the influence coefficient of the vehicle's total weight on the rolling radius of the wheels, and K represents the weight of the vehicle's total weight distributed on the k-th wheel. P This represents the coefficient of influence of tire pressure on the wheel rolling radius. The above formula allows for a more accurate calculation of the current tire pressure value for each wheel, reducing the number of tire pressure sensors installed and lowering the cost of tire pressure monitoring. Preset vehicle parameters include K. v K m and K P The current tire pressure of each wheel can be determined relatively accurately using equations (1) to (4).

[0069] If the difference between the current tire pressure value and the detected tire pressure value of the target wheel is large, it indicates that the accuracy of the current tire pressure value is low and the error is large. It is necessary to recalibrate the preset vehicle parameters in equation (4) to improve the accuracy of the calculated current tire pressure value. The specific calibration method is explained in the following examples.

[0070] In some embodiments, referring to FIG2, the method further includes the following steps:

[0071] Step 202: In response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being greater than or equal to the preset threshold, the current state of the vehicle is adjusted to the preset state.

[0072] Specifically, the preset state can be the vehicle's normal driving state. When the calculated current tire pressure value is inaccurate, it is necessary to collect driving data under normal vehicle conditions. The tire pressure value calculated using driving data under this state has less interference, so the preset vehicle parameters can be corrected. The constraints corresponding to the preset state can include constraints on factors such as vehicle condition, vehicle speed, and tire pressure. Those skilled in the art can determine the preset state according to the actual situation, and no specific restrictions are made here.

[0073] Step 204: Under the preset state, continuously collect the second tire pressure value of the tire pressure sensor within a preset time period.

[0074] When the vehicle is in a preset state, the tire pressure sensor continuously collects the tire pressure value within a preset time period, such as 20 minutes. Alternatively, the tire pressure value can be collected every 10 seconds within the preset time period. The preset time period and the collection interval within the preset time period can be determined according to actual needs.

[0075] Step 206: Correct the preset vehicle parameters according to the second tire pressure value, wherein the preset vehicle parameters are used to calculate the current tire pressure value.

[0076] Specifically, the tire pressure values ​​collected within a preset time period will be used as the current tire pressure value P(k) in equation (4), and K in equation (4) will be re-determined through multiple tire pressure values. v K m and K P This is to correct the preset vehicle parameters. For example, three second tire pressure values ​​are collected within a preset time period, namely P1(k), P2(k) and P3(k), and substituted into equation (4) respectively.

[0077] P1(k)=[R1(k)-R0(k)-K v *v1-K m *M(k)] / K P (5)

[0078] P1(k)=[R2(k)-R0(k)-K v *v2-K m *M(k)] / K P (6)

[0079] P1(k)=[R3(k)-R0(k)-K v *v3-K m *M(k)] / K P (7)

[0080] In equations (5) to (7), R1(k), R2(k), R3(k), v1, v2, and v3 can be obtained in real time, while R0(k) and M(k) are constants. The corrected K can be obtained by solving equations (5) to (7) together. v K m and K P The revised preset vehicle parameters are more consistent with the current vehicle driving conditions, and the calculated current tire pressure value is closer to the detected tire pressure value.

[0081] In some embodiments, adjusting the current state of the vehicle to a preset state includes:

[0082] The current tire pressure of each wheel is adjusted to a preset standard tire pressure, and the current vehicle speed is adjusted to a preset speed. For example, the preset standard tire pressure can be 0.22 MPa, and the preset speed can be any speed greater than or equal to 30 km / h. When the vehicle speed exceeds 30 km / h and the tire pressure reaches 0.22 MPa, the vehicle can be considered to be in normal driving condition. Collecting and detecting tire pressure values ​​under preset conditions improves the accuracy of correcting preset vehicle parameters, thereby improving the accuracy of the calculated current tire pressure value.

[0083] In some embodiments, the method further includes:

[0084] In response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being greater than or equal to the preset threshold, a target calibration table is determined in a preset calibration table set;

[0085] The preset vehicle parameters are corrected according to the target calibration table, wherein the preset vehicle parameters are used to calculate the current tire pressure value.

[0086] Specifically, when the vehicle is in motion, if it is inconvenient to adjust the tire pressure and speed to the preset standard tire pressure and speed, the preset vehicle parameters can be adjusted using a pre-stored calibration table. At the time of manufacture, the vehicle undergoes real-vehicle testing, and test data is recorded. Under normal tire pressure in different environments, the rolling radius of the vehicle at different speeds is recorded, and the speed, rolling radius, and tire pressure values ​​are correlated and recorded in the calibration table. For example, different seasons result in different ambient temperatures, leading to different normal tire pressures; similarly, different road conditions also affect the normal tire pressure. For each ambient temperature or road condition, the vehicle speed and corresponding rolling radius are calibrated, forming a set of calibration tables. For instance, when the ambient temperature exceeds 30℃, the road condition is urban highway, and the normal standard tire pressure is 0.22 MPa, the calibration table records the rolling radii at speeds of 10 km / h, 20 km / h, 30 km / h, 40 km / h, 50 km / h, 60 km / h, 70 km / h, and 80 km / h. The numerical interval between adjacent vehicle speeds in the calibration table can be set according to actual needs. When it is necessary to correct the preset vehicle parameters, the calibration table with the closest temperature and road conditions from the preset calibration table set is selected as the target calibration table based on the current vehicle's ambient temperature and road conditions. The tire pressure, vehicle speed, and rolling radius in the target calibration table are substituted into equation (4) to redetermine the preset vehicle parameters K. v K m and K PThe method provided in this embodiment corrects the preset vehicle parameters quickly and promptly without requiring the user to adjust tire pressure and vehicle speed. This ensures that the user receives accurate tire pressure values ​​in real time, eliminating the need for additional operations and improving the user experience.

[0087] In some embodiments, the method further includes:

[0088] In response to the first tire pressure value being outside the preset tire pressure range and the current tire pressure value being within the preset tire pressure range, a first warning message is issued;

[0089] In response to the fact that both the first tire pressure value and the current tire pressure value are outside the preset tire pressure range, a second warning message is issued;

[0090] In response to the first tire pressure value being within the preset tire pressure range and the current tire pressure value being outside the preset tire pressure range, a third warning message is issued.

[0091] Specifically, when the first tire pressure value is outside the preset tire pressure range, while the current tire pressure value is within the preset range, it indicates that the vehicle's current tire pressure is normal, but the accuracy of the detected tire pressure value is low, suggesting a possible malfunction of the tire pressure sensor. In this case, a first warning message is issued to alert the user of the tire pressure sensor malfunction. When both the first and current tire pressure values ​​are outside the preset tire pressure range, it indicates a problem with the vehicle's current tire pressure, either too high or too low. In this case, a second warning message is issued to remind the driver to pay attention to the vehicle's tire pressure, stop and check, and avoid vehicle and personal safety issues. When the first tire pressure value is within the preset tire pressure range but the current tire pressure value is outside the preset range, it indicates that the accuracy of the calculated current tire pressure value is low, requiring correction of the preset vehicle parameters. In this case, a third warning message is issued to remind the user to adjust the vehicle's tire pressure and speed to correct the preset vehicle parameters. It should be noted that the above warning messages can be at least one of text, sound, or light information.

[0092] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0093] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0094] Based on the same inventive concept, and corresponding to any of the above embodiments, this application also provides a tire pressure detection device for vehicles.

[0095] Referring to Figure 3, the tire pressure monitoring device for the vehicle includes:

[0096] The acquisition module 302 is configured to acquire the vehicle's driving data and the first tire pressure value of the tire pressure sensor in real time.

[0097] The calculation module 304 is configured to calculate the current tire pressure value of each wheel in the vehicle based on the driving data;

[0098] The determination module 306 is configured to, in response to a preset threshold, use each current tire pressure value as the target tire pressure value for each wheel when the difference between the first tire pressure value and the current tire pressure value of the target wheel is less than a preset threshold.

[0099] In some embodiments, before setting each current tire pressure value as the target tire pressure value for each wheel, the determining module 306 is further configured to correct each current tire pressure value based on the difference.

[0100] In some embodiments, the determining module 306 is further configured to use the product of the difference and a preset correction coefficient as a correction value; and to use the sum of the current tire pressure value and the correction value as the corrected current tire pressure value.

[0101] In some embodiments, the driving data includes vehicle speed and the rolling speed of each wheel; the calculation module 304 is further configured to determine the rolling radius of each wheel based on the vehicle speed and the rolling speed; and to determine the current tire pressure value of each wheel based on the rolling radius, the vehicle speed, and preset vehicle parameters.

[0102] In some embodiments, a correction module is further included, the correction module being configured to adjust the current state of the vehicle to a preset state in response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being greater than or equal to the preset threshold.

[0103] Under the preset state, the second tire pressure value of the tire pressure sensor is continuously collected within a preset time period;

[0104] The preset vehicle parameters are corrected based on the second tire pressure value, wherein the preset vehicle parameters are used to calculate the current tire pressure value.

[0105] In some embodiments, the correction module is further configured to adjust the current tire pressure of each wheel to a preset standard tire pressure and adjust the current vehicle speed to a preset vehicle speed.

[0106] In some embodiments, the correction module is configured to determine a target calibration table in a preset calibration table set in response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being greater than or equal to the preset threshold.

[0107] The preset vehicle parameters are corrected according to the target calibration table, wherein the preset vehicle parameters are used to calculate the current tire pressure value.

[0108] In some embodiments, the correction module is configured to issue a first warning message in response to the first tire pressure value being outside a preset tire pressure range and the current tire pressure value being within the preset tire pressure range;

[0109] In response to the fact that both the first tire pressure value and the current tire pressure value are outside the preset tire pressure range, a second warning message is issued;

[0110] In response to the first tire pressure value being within the preset tire pressure range and the current tire pressure value being outside the preset tire pressure range, a third warning message is issued.

[0111] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0112] The apparatus described above is used to implement the tire pressure detection method for the corresponding vehicle in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0113] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the tire pressure detection method for a vehicle as described in any of the above embodiments.

[0114] Figure 4 shows a more specific hardware structure diagram of an electronic device provided in this embodiment. The device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0115] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0116] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0117] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0118] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0119] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0120] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0121] The electronic devices described above are used to implement the tire pressure detection method for the corresponding vehicle in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0122] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the tire pressure detection method for a vehicle as described in any of the above embodiments.

[0123] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be 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 technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0124] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the tire pressure detection method for a vehicle as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0125] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0126] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0127] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0128] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A method for detecting tire pressure in a vehicle, characterized in that, The vehicle has tire pressure sensors installed in the target wheels; the method includes: acquiring vehicle driving data and a first tire pressure value of the tire pressure sensor in real time; calculating the current tire pressure value of each wheel in the vehicle based on the driving data; in response to a difference between the first tire pressure value and the current tire pressure value of the target wheel being less than a preset threshold, using each current tire pressure value as the target tire pressure value of each wheel; before using each current tire pressure value as the target tire pressure value of each wheel, the method includes: correcting each current tire pressure value according to the difference, including: using the product of the difference and a preset correction coefficient as a correction value; and using the sum of the current tire pressure value and the correction value as the corrected current tire pressure value.

2. The method according to claim 1, characterized in that, The driving data includes vehicle speed and the rolling speed of each wheel; the calculation of the current tire pressure value of each wheel in the vehicle based on the driving data includes: determining the rolling radius of each wheel based on the vehicle speed and the rolling speed; and determining the current tire pressure value of each wheel based on the rolling radius, the vehicle speed, and preset vehicle parameters.

3. The method according to claim 1, characterized in that, The method further includes: adjusting the current state of the vehicle to a preset state in response to the difference between the first tire pressure value and the current tire pressure value of the target wheel being greater than or equal to the preset threshold; continuously collecting the second tire pressure value of the tire pressure sensor within a preset time period in the preset state; and correcting preset vehicle parameters according to the second tire pressure value, wherein the preset vehicle parameters are used to calculate the current tire pressure value.

4. The method according to claim 3, characterized in that, Adjusting the current state of the vehicle to a preset state includes: adjusting the current tire pressure of each wheel to a preset standard tire pressure, and adjusting the current vehicle speed to a preset vehicle speed.

5. A tire pressure monitoring device for a vehicle, characterized in that, The vehicle has tire pressure sensors installed in the target wheels; the device includes: an acquisition module configured to acquire vehicle driving data and a first tire pressure value of the tire pressure sensor in real time; a calculation module configured to calculate the current tire pressure value of each wheel in the vehicle based on the driving data; and a determination module configured to, in response to a difference between the first tire pressure value and the current tire pressure value of the target wheel being less than a preset threshold, use each current tire pressure value as the target tire pressure value for each wheel; before using each current tire pressure value as the target tire pressure value for each wheel, the device includes: correcting each current tire pressure value according to the difference, including: using the product of the difference and a preset correction coefficient as a correction value; and using the sum of the current tire pressure value and the correction value as the corrected current tire pressure value.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 4.

7. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method described in any one of claims 1 to 4.

8. A vehicle, characterized in that, Including the electronic device as described in claim 6.

Images