Methods, devices and computer equipment for determining abnormal tire pressure

Abstract

This application relates to the field of vehicle technology, and in particular to a method, apparatus, and computer device for determining abnormal tire pressure. The method includes: acquiring the current tire pressure value of the tires in the vehicle during driving; if the current tire pressure value meets the tire pressure warning conditions, acquiring current tire pressure-related data; the current tire pressure-related data includes current vehicle driving data and current vehicle load data; determining a tire pressure-related risk value corresponding to the current tire pressure-related data based on the difference between the current tire pressure-related data and the vehicle's standard tire pressure-related data; wherein the standard tire pressure-related risk value corresponding to the standard tire pressure-related data is within a safety threshold; and determining whether the tire pressure is abnormal based on the tire pressure's own risk value and the tire pressure-related risk value corresponding to the current tire pressure value.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, apparatus and computer device for determining abnormal tire pressure. Background Technology

[0002] Tire pressure monitoring is a technology that automatically monitors tire pressure in real time while a vehicle is in motion.

[0003] Currently, direct tire pressure monitoring systems (TPMS) use pressure sensors installed inside each tire to directly measure tire pressure. The sensors transmit the collected pressure data wirelessly to a central receiver module, where it is then displayed in the driver's cab. The system automatically alarms when tire pressure is too low or a leak occurs, alerting the driver to take appropriate action.

[0004] However, this traditional technology can only issue a warning after the tire pressure has deviated from the normal range, lacking the ability to predict and intervene in advance. Summary of the Invention

[0005] Therefore, it is necessary to provide a method, device, and computer equipment for determining tire pressure abnormalities that can predict abnormal tire pressure conditions in advance, in order to address the above-mentioned technical problems.

[0006] In a first aspect, this application provides a method for determining abnormal tire pressure, the method comprising:

[0007] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0008] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0009] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0010] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0011] In one embodiment, the tire pressure associated risk value corresponding to the current tire pressure associated data is determined based on the difference between the current tire pressure associated data and the vehicle's standard tire pressure associated data, including:

[0012] Based on the first difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data, determine the first tire pressure impact value corresponding to the current vehicle driving data;

[0013] Based on the second difference between the current vehicle load data and the standard vehicle load data in the standard tire pressure correlation data, determine the second tire pressure impact value corresponding to the current vehicle load data;

[0014] Based on the first tire pressure impact value and the second tire pressure impact value, determine the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0015] In one embodiment, current vehicle driving data includes current vehicle speed, and standard vehicle driving data includes standard vehicle speed;

[0016] Based on the first difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data, determine the first tire pressure impact value corresponding to the current vehicle driving data, including:

[0017] If the current vehicle speed is less than the standard vehicle speed, the set tire pressure impact value corresponding to the standard vehicle speed will be determined as the first tire pressure impact value corresponding to the current vehicle driving data.

[0018] If the current vehicle speed is greater than or equal to the standard vehicle speed, the speed difference between the current vehicle speed and the standard vehicle speed is determined, and the first tire pressure influence value corresponding to the current vehicle driving data is determined based on the first weighting coefficient corresponding to the speed difference and the second weighting coefficient corresponding to the square of the speed difference.

[0019] In one embodiment, the current tire pressure associated data also includes current vehicle external environment data and / or current tire temperature data;

[0020] Based on the first tire pressure impact value and the second tire pressure impact value, determine the tire pressure-related risk value corresponding to the current tire pressure-related data, including:

[0021] Based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, determine the third tire pressure impact value corresponding to the current vehicle external environment data.

[0022] Based on the fourth difference between the current tire temperature data and the standard tire pressure correlation data, determine the fourth tire pressure influence value corresponding to the current tire temperature data;

[0023] Based on the third and / or fourth tire pressure impact values, the first tire pressure impact value, and the second tire pressure impact value, determine the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0024] In one embodiment, the current vehicle external environment data includes current external road data, and the third difference includes road condition differences;

[0025] Based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, determine the third tire pressure impact value corresponding to the current vehicle external environment data, including:

[0026] Based on the third difference between the current external road data and the standard external road data in the standard tire pressure correlation data, determine the road tire pressure impact value corresponding to the current external road data;

[0027] The road tire pressure impact value is determined as the third tire pressure impact value corresponding to the current vehicle external environment data.

[0028] In one embodiment, determining that the current tire pressure value meets the tire pressure warning conditions includes:

[0029] Determine the tire pressure difference between the current tire pressure value and the initial tire pressure value corresponding to the tire;

[0030] If the current tire pressure value is less than the initial tire pressure value, and the tire pressure difference is within the set tire pressure warning range, then the current tire pressure value is determined to meet the tire pressure warning conditions.

[0031] The initial tire pressure value is the standard tire pressure value collected when the vehicle is stationary.

[0032] In one embodiment, the standard tire pressure is determined based on the tire type and the climate conditions during vehicle operation.

[0033] In one embodiment, determining whether the tire pressure is abnormal based on the tire pressure's own risk value and the tire pressure-related risk value corresponding to the current tire pressure value includes:

[0034] The risk value of the current tire pressure is determined based on the difference between the current tire pressure and the standard tire pressure of the tire.

[0035] The product of the tire pressure risk value itself and the tire pressure-related risk value is determined as the current tire pressure risk value;

[0036] From the vehicle's historical tire pressure anomaly records, obtain the historical tire pressure risk value corresponding to historical tire pressure correlation data that is similar to the current tire pressure correlation data;

[0037] If the current tire pressure risk value is determined to be the same as the historical tire pressure risk value, then the tire pressure is determined to be abnormal.

[0038] Secondly, this application also provides a tire pressure abnormality determination device, the device comprising:

[0039] The tire pressure monitoring module is used to obtain the current tire pressure value of the tires in the vehicle while the vehicle is in motion;

[0040] The anomaly detection module is used to obtain the current tire pressure associated data when it is determined that the current tire pressure value meets the tire pressure warning conditions; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data.

[0041] The impact prediction module is used to determine the tire pressure associated risk value corresponding to the current tire pressure associated data based on the difference between the current tire pressure associated data and the vehicle's standard tire pressure associated data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure associated data is within the safety threshold.

[0042] The tire pressure warning module is used to determine whether the tire pressure is abnormal based on the tire pressure risk value and the associated risk value corresponding to the current tire pressure value.

[0043] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0044] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0045] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0046] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0047] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0048] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0049] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0050] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0051] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0052] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0053] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0054] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0055] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0056] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0057] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0058] The aforementioned method, apparatus, and computer equipment for determining abnormal tire pressure first determine whether the current tire pressure value meets the conditions for a tire pressure warning. If so, it indicates that the tire pressure has begun to slowly decrease or increase. In this case, based on the current vehicle driving data and current vehicle load data in the current tire pressure associated data, the tire pressure associated risk value corresponding to the current tire pressure associated data is determined. The current vehicle driving data and current vehicle load data in the current tire pressure associated data can more comprehensively reflect the influence of external factors (including driving factors and load factors) on tire pressure, predict the possible changes in tire pressure in the future, and obtain an accurate tire pressure associated risk value. Finally, by combining the tire pressure's own risk value and the tire pressure associated risk value corresponding to the current tire pressure value, it is determined whether there is an abnormality in the tire pressure, thereby improving the comprehensiveness and accuracy of the judgment of abnormal tire pressure and realizing the function of predicting abnormal tire pressure. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a flowchart illustrating a method for determining abnormal tire pressure in one embodiment;

[0061] Figure 2 This is a flowchart illustrating the steps for determining whether the current tire pressure value meets the tire pressure warning conditions in one embodiment.

[0062] Figure 3 This is a flowchart illustrating the steps for determining the tire pressure associated risk value corresponding to the current tire pressure associated data in one embodiment.

[0063] Figure 4 This is a flowchart illustrating the steps for determining the tire pressure associated risk value corresponding to the current tire pressure associated data in another embodiment.

[0064] Figure 5 This is a flowchart illustrating the steps for determining whether there is an abnormality in tire pressure in one embodiment.

[0065] Figure 6 This is a structural block diagram of a tire pressure anomaly determination device in one embodiment;

[0066] Figure 7 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0068] In one exemplary embodiment, such as Figure 1 As shown, a method for determining abnormal tire pressure is provided, applied to a computer device. The method includes:

[0069] S101: During vehicle operation, obtain the current tire pressure value of the tires in the vehicle.

[0070] Optionally, the current tire pressure value of each tire in the vehicle can be obtained through a tire pressure sensor installed on each tire. It is understood that tire pressure sensors, also known as tire pressure monitoring systems (TPMS), are devices used to monitor the tire pressure of automobile tires. They can monitor the air pressure inside the tires in real time and immediately issue an alarm when abnormal tire pressure is detected, reminding the driver to take appropriate measures to ensure driving safety.

[0071] Optionally, tire pressure sensors include two types: direct and indirect. 1) Direct monitoring type: This type directly measures tire pressure using a pressure sensor installed in each tire. When the air pressure inside the tire changes, the tire pressure sensor sends the information to the vehicle's central processing unit (CPU). The CPU compares the preset tire pressure value with the actual detected tire pressure value and issues an alarm if an anomaly is detected. 2) Indirect monitoring type: This type calculates tire pressure by monitoring the rotational speed of the wheels. When the pressure in a tire decreases, the vehicle's weight causes that wheel's rolling radius to decrease, resulting in it rotating faster than other wheels, thus indicating an abnormal tire pressure.

[0072] For example, during vehicle operation, the current tire pressure value of each tire is collected by each tire pressure sensor at a sampling frequency of 1Hz. The current tire pressure values ​​of the four tires collected are as follows: the current tire pressure value of the left front tire... Current tire pressure of the right front tire Current tire pressure of the left rear tire The current tire pressure of the right rear tire. .

[0073] S102, if it is determined that the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure correlation data of the vehicle tire.

[0074] The tire pressure warning condition can be that the vehicle's tire pressure deviates from the normal or recommended tire pressure range. If the current tire pressure value deviates from the standard tire pressure value and falls within this deviation range, then the current tire pressure value is determined to meet the tire pressure warning condition. Tire pressure deviation can include excessively high or low tire pressure. Deviations from the normal or recommended range may have adverse effects on vehicle driving safety, tire lifespan, and driving experience.

[0075] It is understandable that tire pressure-related data refers to other data closely related to tire pressure that needs to be considered in addition to the directly measured current tire pressure value when assessing the condition of vehicle tire pressure. For example, tire pressure-related data may include: 1) Historical tire pressure data: Obtaining tire pressure records over a past period to observe trends in tire pressure changes. Analyzing historical tire pressure data can help identify whether abnormal tire pressure occurs suddenly or develops gradually. 2) Tire temperature data: Tire temperature is one of the important factors affecting tire pressure. Obtaining current and historical tire temperature data helps analyze whether abnormal tire pressure is related to temperature changes. 3) Vehicle driving data: Obtaining data such as the vehicle's recent mileage, speed, and driving time to analyze whether abnormal tire pressure is related to vehicle usage. 4) Tire wear: Checking the tire's wear level, tread depth, and for any abnormalities such as cracks or bulges. Tire wear can provide clues about possible causes of abnormal tire pressure; for example, excessive wear may indicate persistently low tire pressure. 5) Vehicle load: Understanding the vehicle's current load, including the number of passengers and luggage weight. Vehicle load affects tire pressure; excessive load may lead to overinflation. 6) Environmental data: Obtain current ambient temperature, humidity, air pressure, and other data to analyze whether these factors affect tire pressure. In some cases, extreme environmental conditions may cause abnormal tire pressure. 7) Tire specifications and type: Confirm the tire specifications (such as tire size, rim diameter, etc.) and type (such as summer tires, winter tires, all-season tires, etc.). Different tire specifications and types have different tire pressure requirements; ensure that the correct tire pressure values ​​are used for comparison.

[0076] The current tire pressure data includes current vehicle driving data and current vehicle load data.

[0077] As can be understood, current vehicle driving data refers to a series of parameters related to the vehicle's motion state generated during vehicle operation. These parameters reflect the vehicle's current driving status, such as speed, acceleration, and mileage. Optionally, on-board sensors, vehicle diagnostic interfaces, or on-board information systems can be used to acquire the vehicle's current driving data in real time.

[0078] Understandably, current vehicle load data refers to the weight of the goods or passengers currently carried by the vehicle. This data is crucial for assessing the tire pressure of the vehicle's tires, as the load directly affects the tire pressure. Optionally, the vehicle's current load data can be obtained in real time using onboard weighing sensors, vehicle diagnostic interfaces, or manual estimation.

[0079] S103, Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data.

[0080] Among them, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0081] As is understandable, standard tire pressure correlation data refers to data under standard conditions recommended by the vehicle manufacturer or tire manufacturer. These standard conditions include standard load, standard speed, and standard road conditions, under which the tire pressure is within a reasonable and safe range. This standard condition data is typically provided by the manufacturer and takes into account the tire's design performance, lifespan, and safety. Standard tire pressure correlation data provides a benchmark for assessing tire pressure conditions. By comparing this data with current tire pressure correlation data, it can be determined whether the tire pressure is normal and whether there are any abnormal risks.

[0082] The safety threshold refers to the maximum or minimum allowable deviation of tire pressure risk value without affecting tire performance and safety. This value is usually determined by the manufacturer based on factors such as tire design parameters, material properties, and practical usage experience. The safety threshold ensures that tire pressure is always maintained within a safe and reasonable range. When the tire pressure risk value exceeds this range, it may cause safety hazards, such as accelerated tire wear and an increased risk of tire blowout.

[0083] Optionally, the tire pressure-related risk value can be a risk value calculated using a mathematical model based on the difference between current tire pressure-related data and standard tire pressure-related data. This risk value reflects the degree to which tire pressure may deviate from normal values ​​under current driving conditions and load.

[0084] S104. Based on the tire pressure risk value and tire pressure-related risk value corresponding to the current tire pressure value, determine whether the tire pressure is abnormal.

[0085] Optionally, the tire pressure risk value is a risk indicator determined based on the difference between the current tire pressure and the standard tire pressure. The tire pressure-related risk value is a risk value determined after comprehensively considering other data closely related to tire pressure (i.e., tire pressure-related data). This tire pressure-related data includes, but is not limited to, the vehicle driving data (such as speed, mileage, etc.), load data, tire temperature data, and external environmental data (such as temperature, humidity, road conditions, etc.) mentioned above.

[0086] Furthermore, the calculated tire pressure risk value and tire pressure-related risk value are combined in some way, such as by adding them together or adding them according to certain weights, to obtain a total risk value. An anomaly detection threshold is set. When the total risk value reaches this threshold, a tire pressure warning message is issued to the driver via in-vehicle display, mobile application, or other means. The warning message should include the current tire pressure value, the standard tire pressure value, the tire pressure-related risk value, and suggested actions (such as checking the tires and adjusting the tire pressure).

[0087] The above-mentioned method for determining abnormal tire pressure first determines whether the current tire pressure value meets the conditions for a tire pressure warning. If so, it indicates that the tire pressure has begun to slowly decrease or increase. In this case, based on the current vehicle driving data and current vehicle load data in the current tire pressure associated data, the tire pressure associated risk value corresponding to the current tire pressure associated data is determined. The current vehicle driving data and current vehicle load data in the current tire pressure associated data can more comprehensively reflect the influence of external factors (including driving factors and load factors) on tire pressure, predict the possible changes in tire pressure in the future, and obtain an accurate tire pressure associated risk value. Finally, by combining the tire pressure risk value itself corresponding to the current tire pressure value and the tire pressure associated risk value, it is determined whether there is an abnormality in the tire pressure, thereby improving the comprehensiveness and accuracy of the judgment of abnormal tire pressure and realizing the function of predicting abnormal tire pressure.

[0088] In one exemplary embodiment, such as Figure 2 As shown, determining that the current tire pressure value meets the tire pressure warning conditions includes:

[0089] S201, determine the tire pressure difference between the current tire pressure value and the initial tire pressure value corresponding to the tire.

[0090] The initial tire pressure value is the standard tire pressure value collected when the vehicle is stationary. It is typically collected when the vehicle is stationary (e.g., after parking) and can be considered the reference tire pressure before normal use. The initial tire pressure value may be stored in the vehicle's electronic control unit or manually set and recorded by the driver at a specific time.

[0091] Optionally, the current tire pressure value can be compared with the initial tire pressure value, and the difference between them can be calculated. This difference reflects the amount of change in tire pressure since the initial measurement.

[0092] S202, if the current tire pressure value is less than the initial tire pressure value, and the tire pressure difference is within the set tire pressure warning range, then the current tire pressure value is determined to meet the tire pressure warning condition.

[0093] The tire pressure warning range is a preset range of tire pressure differences used to determine whether a significant change in tire pressure has occurred, potentially triggering abnormal risks. The setting of this tire pressure warning range should be based on factors such as the vehicle manufacturer's recommendations, tire specifications, usage conditions, and safety considerations.

[0094] Optionally, for cases where the tire pressure deviation is a decrease: If the current tire pressure value is less than the initial tire pressure value, it indicates that the vehicle's tire pressure has begun to decrease slowly. The tire pressure difference is compared with the set warning range. If the tire pressure difference is outside the set tire pressure warning range, it is determined that the degree of decrease has not directly reached an abnormal level. For example, the tire pressure warning range is [decrease limit, -0.2] (in bar). If the tire pressure difference is -0.1 bar, falling outside [decrease limit, -0.2], it is determined that the current tire pressure value does not meet the tire pressure warning condition; if the tire pressure difference is -0.3 bar, falling within [decrease limit, -0.2], it is determined that the current tire pressure value meets the tire pressure warning condition. Here, the decrease limit can be the limit value obtained by conducting an extreme test on the tire pressure decrease.

[0095] Optionally, for cases where the tire pressure deviation is an increase: If the current tire pressure value is greater than the initial tire pressure value, it indicates that the vehicle's tire pressure has begun to rise slowly. The above tire pressure difference is compared with the set warning range. If the tire pressure difference is outside the set tire pressure warning range, it is determined that the decrease has not directly reached an abnormal level. For example, the tire pressure warning range is [0.3, the limit of increase] (in bar). If the tire pressure difference is +0.1 bar, falling outside [0.3, the limit of increase], it is determined that the current tire pressure value does not meet the tire pressure warning condition; if the tire pressure difference is +0.4 bar, falling within [0.3, the limit of increase], it is determined that the current tire pressure value meets the tire pressure warning condition. Here, the limit of increase can be the limit value obtained by conducting an extreme test on the tire's rise.

[0096] In this embodiment, by measuring the tire pressure difference between the current tire pressure value and the initial tire pressure value corresponding to the tire, abnormal changes in tire pressure can be detected in a timely manner, and corresponding measures can be taken to prevent potential safety hazards.

[0097] In one exemplary embodiment, such as Figure 3 As shown, based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, the tire pressure correlation risk value corresponding to the current tire pressure correlation data is determined, including:

[0098] S301, based on the first difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data, determine the first tire pressure impact value corresponding to the current vehicle driving data.

[0099] Optionally, standard tire pressure correlation data matching the tire can be obtained from information provided by the vehicle manufacturer or tire manufacturer; for example, standard tire pressure correlation data may include standard vehicle driving data (such as standard driving speed, acceleration and mileage) and their corresponding tire pressure impact values.

[0100] Furthermore, the current vehicle's driving data is compared one by one with the standard vehicle's driving data to identify the differences between them, i.e., the first difference. The first difference is then quantified, for example, by calculating the deviation between the current speed and the standard vehicle's speed.

[0101] In one feasible approach, a first mathematical model is established based on the physical relationship between vehicle driving data and tire pressure values. This first mathematical model should be able to consider the influence of various driving parameters on tire pressure and output a tire pressure influence value. Then, a quantified first difference value is input into the first mathematical model as an input parameter. Using the first mathematical model, a first tire pressure influence value corresponding to the current vehicle driving data is calculated based on the input first difference value. The first tire pressure influence value is proportional to the first difference. Optionally, the calculated first tire pressure influence value is displayed to the driver or vehicle management system in numerical or graphical form.

[0102] In this embodiment, the current vehicle driving data includes the current vehicle speed. Standard vehicle driving data includes standard vehicle speed.

[0103] Accordingly, based on the difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data, the first tire pressure impact value corresponding to the current vehicle driving data is determined, including:

[0104] In another possible approach, the following two scenarios can be employed:

[0105] Scenario 1: If the current vehicle speed is less than the standard vehicle speed, the set tire pressure impact value corresponding to the standard vehicle speed is determined as the first tire pressure impact value corresponding to the current vehicle driving data. The first tire pressure impact value is used as... express.

[0106] Understandably, standard vehicle speed can characterize a low-speed range, such as less than... Speed ​​range; if the current vehicle speed If the speed is less than 40 km / h, then determine the first tire pressure influence value. When using the following formula (1):

[0107] (1)

[0108] in, To set the tire pressure impact value.

[0109] Scenario 2: If the current vehicle speed is greater than or equal to the standard vehicle speed, then determine the speed difference between the current vehicle speed and the standard vehicle speed, and determine the first tire pressure impact value corresponding to the current vehicle driving data based on the first weighting coefficient corresponding to the speed difference and the second weighting coefficient corresponding to the square of the speed difference.

[0110] Optionally, the standard vehicle speed can be recorded as... The speed difference is ;

[0111] If the current vehicle speed is greater than or equal to the standard vehicle speed, then the first tire pressure effect value... Determine using the following formula (2):

[0112] (2)

[0113] in, The second weighting coefficient corresponds to the square of the speed difference; This is the first weighting coefficient corresponding to the speed difference.

[0114] Understandably, using different calculation methods to determine the impact value of tire pressure according to different vehicle speed ranges improves the accuracy and sensitivity of the calculation. This dynamic adjustment method makes tire pressure management more flexible and adaptable, which helps to enhance driving safety, optimize tire life and improve the driving experience.

[0115] S302, based on the second difference between the current vehicle load data and the standard vehicle load data in the standard tire pressure correlation data, determine the second tire pressure influence value corresponding to the current vehicle load data.

[0116] Optionally, standard tire pressure correlation data matching the tire can be obtained from information provided by the vehicle manufacturer or tire manufacturer. The standard tire pressure correlation data may include standard vehicle load data.

[0117] Specifically, the current vehicle load data is compared with the standard vehicle load data to identify the difference between the two, i.e., the second difference. The second difference is then quantified, for example, by calculating the deviation between the current vehicle load data and the standard vehicle load data, expressed in kilograms (kg) or percentages (%).

[0118] In one feasible approach, a second mathematical model is established based on the physical relationship between vehicle load and tire pressure. This model should be able to consider the impact of load changes on tire pressure and output the tire pressure impact value. For example, this model can employ statistical methods such as linear regression or multinomial regression, or a simulation model based on physical principles. The quantified second difference value is input into the second mathematical model as an input parameter. Using this second mathematical model, the second tire pressure impact value corresponding to the current vehicle load data is calculated based on the input second difference value. The second tire pressure impact value is proportional to the second difference. Optionally, the calculated second tire pressure impact value can be displayed to the driver or vehicle management system in numerical or graphical form.

[0119] For example, the current vehicle load data N is estimated based on the vehicle's factory weight and the number of people in the vehicle's seats.

[0120] Assuming the average weight of each passenger is 60kg, the estimated current vehicle load data N is calculated as follows: N = vehicle's factory weight + X * 60kg;

[0121] Where X represents the number of people in the vehicle seats, and X is a positive integer.

[0122] In this embodiment, the standard vehicle load data is N0, then (N-N0) is the quantified second difference, and the second tire pressure influence value is used. express.

[0123] In another feasible approach, the second tire pressure influence value It can be determined by the following formula (3):

[0124] (3)

[0125] in, This is a proportionality coefficient that is directly proportional to the second tire pressure influence value and the second difference; this coefficient can be a calibration coefficient.

[0126] S303, Based on the first tire pressure impact value and the second tire pressure impact value, determine the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0127] In one feasible approach, a prediction model is selected, such as a linear regression model, a nonlinear regression model, a machine learning algorithm (e.g., random forest, neural network), or a deep learning model. The current tire pressure correlation data, the first tire pressure impact value, and the second tire pressure impact value are used as input data. Based on the selected prediction model, the input data are substituted into the model for calculation to obtain the predicted tire pressure correlation risk value. The predicted tire pressure correlation risk value is output, representing the possible amount or trend of change in tire pressure under current conditions.

[0128] In another possible approach, the first tire pressure impact value and the second tire pressure impact value are weighted or multiplied according to their respective weights to obtain the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0129] In this embodiment, by accurately analyzing the impact of current vehicle driving data and current vehicle load data on tire pressure, accurate prediction and dynamic management of tire pressure risk values ​​are achieved.

[0130] In one exemplary embodiment, the current tire pressure associated data also includes current vehicle outer ring data and / or current tire temperature data.

[0131] Among them, the current vehicle external environment data refers to the external environmental conditions in which the vehicle is currently driving.

[0132] Optionally, current vehicle external environment data may include: 1) Weather conditions: such as temperature, humidity, rain, snow, fog, etc. These weather conditions directly affect tire grip, braking performance, and wear. 2) Road conditions: such as road material (asphalt, cement, gravel, etc.), road slipperiness, road slope, etc. These factors affect vehicle stability and tire wear rate. 3) Traffic conditions: such as traffic volume, speed limits, traffic accidents, etc. Traffic conditions affect vehicle speed and braking frequency, thus affecting tire temperature and tire pressure.

[0133] The current tire temperature data refers to the real-time temperature of the tire during driving.

[0134] Understandably, low tire temperature reduces grip. In low temperatures, rubber becomes more brittle and hard, reducing friction between the tire and the road surface, ultimately leading to decreased grip, longer braking distances, and increased danger. Conversely, excessively high tire temperature can cause various adverse consequences, including tire damage, increased risk of tire blowout, shortened tire lifespan, and increased fuel consumption.

[0135] In one exemplary embodiment, such as Figure 4 As shown, in addition to the current vehicle external environment data and / or current tire temperature data, the current vehicle external environment data further includes current external road data, and the third difference includes road condition differences.

[0136] Optionally, current external road data in the current driving environment can be obtained through sensors on the vehicle or external data sources (such as navigation systems, weather forecasts, etc.). Current external road data may include road type (such as highways, urban roads, rural roads, etc.) and road surface conditions (such as dry, slippery, snow-covered, etc.).

[0137] Furthermore, based on the first tire pressure impact value and the second tire pressure impact value, the tire pressure-related risk value corresponding to the current tire pressure-related data is determined, including:

[0138] S401, based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, determine the third tire pressure influence value corresponding to the current vehicle external environment data.

[0139] Optionally, standard external road data can be read from the vehicle's storage system or a cloud server from the standard tire pressure correlation data. This standard external road data may include different road types and surface conditions.

[0140] Optionally, the current external road data can be compared with the standard external road data in the standard tire pressure correlation data to identify the differences between the current road data and the standard data, such as different road types and changes in road surface conditions.

[0141] In this case, based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, the third tire pressure impact value corresponding to the current vehicle external environment data is determined, including: based on the third difference between the current external road data and the standard external road data in the standard tire pressure correlation data, the road tire pressure impact value is determined as the third tire pressure impact value corresponding to the current vehicle external environment data.

[0142] In one feasible approach, approach 1: Based on the third difference obtained from the analysis, the third tire pressure impact value corresponding to the third difference is calculated using an appropriate algorithm or model. The third tire pressure impact value characterizes the tire pressure deviation value that road condition differences may bring to the tires.

[0143] In another implementation, Method 2: The current external road data in this embodiment includes the current road type and the water accumulation situation corresponding to the current road type; correspondingly, the standard external road data includes each standard road type, the water accumulation situation and the hazard level corresponding to each standard road type.

[0144] For example, standard external road data is shown in Table 1, where the hazard level is represented by... The third tire pressure impact value is indicated by... express:

[0145] Table 1

[0146]

[0147] in, All calibration coefficients, and They can all be different.

[0148] Based on Table 1 above, the current road type in the current external road data is compared with each standard road type in Table 1. The water accumulation status of the current road type is also compared with the water accumulation status of each standard road type. The standard road type and its corresponding water accumulation status that are identical to the current road type and water accumulation status in the current external road data are identified. In this case, the absence of difference indicates a third difference of 0. The third tire pressure impact value corresponding to this identical standard road type and its corresponding water accumulation status is then calculated. This refers to the third tire pressure impact value corresponding to the current vehicle external environment data.

[0149] In this embodiment, the differences between current external road data and standard external road data are taken into account, which improves the road adaptability of tire pressure prediction.

[0150] S402, based on the fourth difference between the current tire temperature data and the standard tire temperature data in the standard tire pressure correlation data, determine the fourth tire pressure influence value corresponding to the current tire temperature data.

[0151] Optionally, the current tire temperature data can be compared with the standard tire temperature data in the standard tire pressure correlation data to identify the temperature difference, which is the fourth difference.

[0152] Furthermore, based on experimental data on the impact of historical tire temperature on historical tire pressure, a mapping relationship between tire temperature and tire pressure influence values ​​is established. This relationship can be linear, non-linear, or rule-based. According to the established mapping relationship, the quantified fourth difference is transformed into a fourth tire pressure influence value, which is directly proportional to the fourth difference.

[0153] For example, each tire is equipped with

[0154] Temperature sensors collect current tire temperature data for each tire at a sampling frequency of 1Hz. This includes: the current tire temperature data of the left front tire. Current tire temperature data for the right front tire Current tire temperature data for the left rear tire Current tire temperature data for the right rear tire .

[0155] Optionally, standard tire temperature data can be obtained based on the manufacturer's recommended optimal operating temperature range of 70°C to 100°C. .

[0156] Specifically, the fourth difference between the current tire temperature data and the standard tire temperature data in the correlation data between standard tire pressure and current tire temperature data = current tire temperature data Subtract standard tire temperature data ;

[0157] Correspondingly, the fourth tire pressure influence value is used express, Determine using the following formula (4):

[0158] (4)

[0159] in, A calibration coefficient is used to ensure that the influence value of the fourth tire pressure is proportional to the fourth difference.

[0160] S403, determine the tire pressure associated risk value corresponding to the current tire pressure associated data based on the third tire pressure impact value and / or the fourth tire pressure impact value, the first tire pressure impact value, and the second tire pressure impact value.

[0161] In one feasible approach, the first tire pressure impact value, the second tire pressure impact value, and the third tire pressure impact value are weighted or multiplied to obtain the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0162] In another possible approach, the first tire pressure impact value, the second tire pressure impact value, the third tire pressure impact value, and the fourth tire pressure impact value are weighted or multiplied to obtain the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0163] In another possible approach, the first, second, and fourth tire pressure impact values ​​are weighted or multiplied to obtain the tire pressure associated risk value corresponding to the current tire pressure associated data.

[0164] In this embodiment, by comprehensively considering the impact of current vehicle external environment data, current tire temperature data, vehicle driving data, and load data on tire pressure, the accuracy of tire pressure risk prediction is comprehensively improved. This multi-dimensional tire pressure management method enhances driving safety.

[0165] In one exemplary embodiment, such as Figure 5 As shown, based on the tire pressure's inherent risk value and associated risk value, it is determined whether the tire pressure is abnormal, including:

[0166] S501 determines the inherent risk value of the current tire pressure based on the tire pressure difference between the current tire pressure and the standard tire pressure corresponding to the tire.

[0167] The standard tire pressure is determined based on the standard tire type and the climate conditions during vehicle operation.

[0168] For example, the correspondence between standard tire pressure values ​​and climate conditions and tire types is shown in Table 2 below:

[0169] Table 2

[0170]

[0171] Optionally, the current time information, including year, month, and date, can be obtained from the vehicle's infotainment system. The current season is determined based on the month in the infotainment system's time. For example, March to May can be defined as spring, June to August as summer, September to November as autumn, and December to February of the following year as winter (the specific division can be adjusted according to actual conditions). Table 2 stores the standard tire pressure data for summer and winter pre-configured by the manufacturer. Based on the current tire type and the climate environment during vehicle operation, the current season during vehicle operation is determined, and the standard tire type matching the current tire type is identified. The standard tire pressure value of this matching standard tire type in the current season is then used as the standard tire pressure value. .

[0172] Furthermore, for any current tire pressure value ( According to the current tire pressure value Compared with standard tire pressure value Tire pressure differences Determine the risk value of the tire pressure itself corresponding to the current tire pressure value. , Determine using the following formula (5):

[0173] (5)

[0174] in, The calibration coefficient is used to determine the risk level of tire pressure itself, as a larger difference in tire pressure increases. The larger.

[0175] S502 determines the current tire pressure risk value by multiplying the tire pressure risk value by the tire pressure risk value itself and the tire pressure associated risk value.

[0176] Here, the current tire pressure risk value is denoted as AV; the tire pressure-related risk value = ;

[0177] In this embodiment, AV is determined using the following formula (6):

[0178] (6)

[0179] in, and The specific calculation process is described in Equations (1) to (5), Table 1 and Table 2.

[0180] Understandably, AV not only includes the tire pressure-related risk value predicted by analyzing the differences between current vehicle driving data, load data, and other data related to standard tire pressure, but also the tire pressure risk value caused by the deviation of the tire pressure itself. By comprehensively considering the current tire pressure status and changes in future driving conditions, the current tire pressure risk value can more accurately assess the potential impact of tire pressure on vehicle performance and safety.

[0181] S503 retrieves historical tire pressure risk values ​​from the vehicle's historical tire pressure anomaly records, corresponding to historical tire pressure correlation data similar to the current tire pressure correlation data.

[0182] Optionally, data matching and mining techniques can be used to identify historical records similar to the current tire pressure data (vehicle driving data, load data, tire temperature data, vehicle external environment data, etc.) from the vehicle's historical tire pressure records. These similar records should cover similar environmental conditions, vehicle status, and tire pressure changes, and the historical tire pressure risk value corresponding to the similar historical tire pressure data should be determined. This historical tire pressure risk value represents the tire pressure risk value for which abnormal tire pressure has occurred.

[0183] Optionally, the historical tire pressure risk value = the tire pressure associated risk value corresponding to the historical tire pressure associated data * the historical tire pressure risk value itself; wherein, the historical associated risk value corresponding to the historical tire pressure associated data and the tire pressure associated risk value corresponding to the current tire pressure associated data can be calculated in the same way, and the historical tire pressure risk value itself can be calculated in the same way as the tire pressure risk value corresponding to the current tire pressure value.

[0184] S504 If it is determined that the current tire pressure risk value has reached the historical tire pressure risk value, then it is determined that the tire pressure is abnormal.

[0185] Specifically, the system continuously monitors the current tire pressure risk value. This value is calculated based on the difference between the current tire pressure and the standard tire pressure, vehicle driving data, load data, and future tire pressure change trends predicted by a model. If the current tire pressure risk value reaches or exceeds the set historical tire pressure risk value, an abnormal tire pressure is detected, triggering a tire pressure warning. Warnings can be issued via dashboard warning lights, audible alarms, or mobile phone notifications to alert the driver to tire pressure issues.

[0186] In this embodiment, by using historical tire pressure anomaly records to set historical tire pressure risk values, it is possible to more accurately determine whether there are potential risks in the current tire pressure status, thereby avoiding false alarms and missed alarms. The historical tire pressure risk values ​​are dynamically adjusted based on the vehicle's historical data and current status, better adapting to changes in different vehicles, usage conditions, and seasons. By monitoring the current tire pressure risk value and triggering timely warnings, drivers can be alerted to take action before tire pressure problems worsen, thus avoiding more serious consequences such as tire damage or loss of vehicle control.

[0187] In an exemplary embodiment, an implementation flow for a method to determine abnormal tire pressure is provided, the flow including:

[0188] (1) The tire pressure of each vehicle is collected by each tire pressure sensor at a sampling frequency of 1Hz, and four current tire pressure values ​​are collected. .

[0189] (2) Obtain the current vehicle speed and standard vehicle speed If the current vehicle speed is less than the standard vehicle speed, the set tire pressure impact value corresponding to the standard vehicle speed will be determined as the first tire pressure impact value corresponding to the current vehicle driving data. .

[0190] Among them, if the current vehicle speed <Standard vehicle speed Then determine the first tire pressure influence value. .

[0191] (3) If the current vehicle speed is greater than or equal to the standard vehicle speed, then the speed difference between the current vehicle speed and the standard vehicle speed is determined to be... Correspondingly, .

[0192] (4) Based on the vehicle's factory weight and the number of people in the vehicle seats, estimate the current vehicle load data N and obtain the standard vehicle load data N0.

[0193] Where X represents the number of people in the vehicle seats, and assuming the average weight of each passenger is 60kg, N = vehicle weight + X * 60kg.

[0194] (5) Calculate the second tire pressure impact value based on the second difference (N-N0) between the current vehicle load data and the standard vehicle load data.

[0195] in, .

[0196] (6) Based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, look up the corresponding third tire pressure impact value for the vehicle in Table 1. .

[0197] Optionally, the third tire pressure impact value corresponding to the standard road type with no difference and the water accumulation situation of that standard road type can be listed in Table 1. This serves as the third tire pressure impact value corresponding to the current vehicle external environment data.

[0198] (7) Determine the standard tire pressure value according to Table 2, and calculate the tire pressure difference between the current tire pressure value and the standard tire pressure value corresponding to the tire. Determine the risk value of the tire pressure itself corresponding to the current tire pressure value. .

[0199] Optionally, based on the current tire pressure value ( ) and standard tire pressure value Tire pressure differences Determine the risk value of the tire pressure itself corresponding to the current tire pressure value. .

[0200] in, , These are calibration coefficients.

[0201] (8) Collect the current tire temperature data of each tire at a sampling frequency of 1Hz using temperature sensors installed on the tires. ( ), and standard tire temperature data provided by the manufacturer. Determine the impact value of the fourth tire pressure. .

[0202] The fourth difference is the current tire temperature data. Subtract standard tire temperature data ;

[0203] Furthermore, the impact value of the fourth tire pressure. ;

[0204] A calibration coefficient is used to ensure that the influence value of the fourth tire pressure is proportional to the fourth difference.

[0205] (9) The first tire pressure influence value Second tire pressure impact value The fourth tire pressure influence value

[0206] Third tire pressure impact value and the risk value of tire pressure itself The product of these two values ​​is used as the current tire pressure risk value AV.

[0207] Among them, the current tire pressure risk value AV = ;

[0208] (10) Determine whether the current tire pressure risk value AV has reached the historical tire pressure risk value. If so, determine whether the tire pressure is abnormal.

[0209] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0210] Based on the same inventive concept, this application also provides a tire pressure anomaly determination device for implementing the tire pressure anomaly determination method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more embodiments of the tire pressure anomaly determination device provided below can be found in the limitations of the tire pressure anomaly determination method described above, and will not be repeated here.

[0211] In one exemplary embodiment, such as Figure 6 As shown, a tire pressure anomaly determination device is provided, including a tire pressure monitoring module 11, an anomaly judgment module 12, an impact prediction module 13, and a tire pressure warning module 14; wherein:

[0212] The tire pressure monitoring module 11 is used to obtain the current tire pressure value of the tires in the vehicle during vehicle operation;

[0213] The anomaly detection module 12 is used to obtain the current tire pressure associated data of the vehicle tire when it is determined that the current tire pressure value meets the tire pressure warning conditions; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data.

[0214] The impact prediction module 13 is used to determine the tire pressure associated risk value corresponding to the current tire pressure associated data based on the difference between the current tire pressure associated data and the vehicle's standard tire pressure associated data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure associated data is within the safety threshold.

[0215] The tire pressure warning module 14 is used to determine whether the tire pressure is abnormal based on the tire pressure risk value and the tire pressure-related risk value corresponding to the current tire pressure value.

[0216] In one embodiment, the influence prediction module 13 includes:

[0217] The first submodule is used to determine the first tire pressure impact value corresponding to the current vehicle driving data based on the first difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data.

[0218] The second submodule is used to determine the second tire pressure impact value corresponding to the current vehicle load data based on the second difference between the current vehicle load data and the standard vehicle load data in the standard tire pressure correlation data.

[0219] The prediction submodule is used to determine the tire pressure associated risk value corresponding to the current tire pressure associated data based on the first tire pressure impact value and the second tire pressure impact value.

[0220] In one embodiment, the current vehicle driving data includes the current vehicle speed, and the standard vehicle driving data includes the standard vehicle speed; the first submodule is further configured to: if the current vehicle speed is less than the standard vehicle speed, determine the set tire pressure influence value corresponding to the standard vehicle speed as the first tire pressure influence value corresponding to the current vehicle driving data;

[0221] If the current vehicle speed is greater than or equal to the standard vehicle speed, the speed difference between the current vehicle speed and the standard vehicle speed is determined, and the first tire pressure influence value corresponding to the current vehicle driving data is determined based on the first weighting coefficient corresponding to the speed difference and the second weighting coefficient corresponding to the square of the speed difference.

[0222] In one embodiment, the current tire pressure associated data also includes current vehicle external environment data and / or current tire temperature data; the prediction submodule includes:

[0223] The third module is used to determine the third tire pressure impact value corresponding to the current vehicle external environment data based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data.

[0224] The fourth module is used to determine the fourth tire pressure influence value corresponding to the current tire temperature data based on the fourth difference between the current tire temperature data and the standard tire temperature data in the standard tire pressure correlation data.

[0225] The comprehensive assessment submodule is used to determine the tire pressure associated risk value corresponding to the current tire pressure associated data based on the third tire pressure impact value and / or the fourth tire pressure impact value, the first tire pressure impact value, and the second tire pressure impact value.

[0226] In one embodiment, the current vehicle external environment data includes current external road data, and the third difference includes road condition differences; the third submodule is further configured to:

[0227] Based on the third difference between the current external road data and the standard external road data in the standard tire pressure correlation data, determine the road tire pressure impact value corresponding to the current external road data;

[0228] The road tire pressure impact value is determined as the third tire pressure impact value corresponding to the current vehicle external environment data.

[0229] In one embodiment, the device further includes a risk assessment module, which is used to: determine the tire pressure difference between the current tire pressure value and the initial tire pressure value corresponding to the tire;

[0230] If the current tire pressure value is less than the initial tire pressure value, and the tire pressure difference is within the set tire pressure warning range, then the current tire pressure value is determined to meet the tire pressure warning conditions.

[0231] The initial tire pressure value is the standard tire pressure value collected when the vehicle is stationary.

[0232] In one embodiment, the standard tire pressure is determined based on the tire type and the climate conditions during vehicle operation.

[0233] In one embodiment, the tire pressure warning module 14 is further configured to:

[0234] The risk value of the current tire pressure is determined based on the difference between the current tire pressure and the standard tire pressure of the tire.

[0235] The product of the tire pressure risk value itself and the tire pressure-related risk value is determined as the current tire pressure risk value;

[0236] From the vehicle's historical tire pressure anomaly records, obtain the historical tire pressure risk value corresponding to historical tire pressure correlation data that is similar to the current tire pressure correlation data;

[0237] If the current tire pressure risk value is determined to be the same as the historical tire pressure risk value, then the tire pressure is determined to be abnormal.

[0238] The modules in the aforementioned tire pressure abnormality determination device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0239] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 7 As shown, the computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores data related to tire pressure anomaly determination methods. The I / O interfaces are used for information exchange between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a tire pressure anomaly determination method.

[0240] Those skilled in the art will understand that Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0241] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0242] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0243] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0244] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0245] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0246] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0247] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0248] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0249] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0250] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0251] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0252] While the vehicle is in motion, obtain the current tire pressure value of the tires in the vehicle;

[0253] If the current tire pressure value meets the tire pressure warning conditions, obtain the current tire pressure associated data; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data;

[0254] Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, determine the tire pressure correlation risk value corresponding to the current tire pressure correlation data; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within the safety threshold.

[0255] Based on the current tire pressure value and the associated risk value, determine whether the tire pressure is abnormal.

[0256] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0257] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0258] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A tire abnormality determination method characterized by comprising: The method includes: During vehicle operation, the current tire pressure of the tires in the vehicle is obtained; If the current tire pressure value meets the tire pressure warning conditions, the current tire pressure associated data of the vehicle tire is obtained; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data. Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, a tire pressure correlation risk value corresponding to the current tire pressure correlation data is determined; wherein, the standard tire pressure risk value corresponding to the standard tire pressure correlation data is within a safety threshold. Based on the tire pressure difference between the current tire pressure value and the standard tire pressure value corresponding to the tire, determine the tire pressure risk value corresponding to the current tire pressure value; The product of the tire pressure risk value itself and the tire pressure associated risk value is determined as the current tire pressure risk value; From the vehicle's historical tire pressure anomaly records, obtain the historical tire pressure risk value corresponding to the historical tire pressure correlation data that is similar to the current tire pressure correlation data; wherein, the historical tire pressure risk value is the tire pressure risk value for which tire pressure anomalies have occurred; If the current tire pressure risk value is determined to be equal to the historical tire pressure risk value, then the tire pressure of the vehicle tire is determined to be abnormal.

2. The method of claim 1, wherein, Based on the difference between the current tire pressure correlation data and the vehicle's standard tire pressure correlation data, a tire pressure correlation risk value corresponding to the current tire pressure correlation data is determined, including: Based on the first difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data, a first tire pressure impact value corresponding to the current vehicle driving data is determined; Based on the second difference between the current vehicle load data and the standard vehicle load data in the standard tire pressure correlation data, a second tire pressure influence value corresponding to the current vehicle load data is determined; Based on the first tire pressure impact value and the second tire pressure impact value, determine the tire pressure associated risk value corresponding to the current tire pressure associated data.

3. The method of claim 2, wherein, The current vehicle driving data includes the current vehicle speed, and the standard vehicle driving data includes the standard vehicle speed. Based on the first difference between the current vehicle driving data and the standard vehicle driving data in the standard tire pressure correlation data, a first tire pressure impact value corresponding to the current vehicle driving data is determined, including: If the current vehicle speed is less than the standard vehicle speed, then the set tire pressure impact value corresponding to the standard vehicle speed is determined as the first tire pressure impact value corresponding to the current vehicle driving data. If the current vehicle speed is greater than or equal to the standard vehicle speed, then the speed difference between the current vehicle speed and the standard vehicle speed is determined, and the first tire pressure impact value corresponding to the current vehicle driving data is determined according to the first weighting coefficient corresponding to the speed difference and the second weighting coefficient corresponding to the square of the speed difference.

4. The method of claim 2, wherein, The current tire pressure associated data also includes current vehicle external environment data and / or current tire temperature data; Based on the first tire pressure impact value and the second tire pressure impact value, the tire pressure associated risk value corresponding to the current tire pressure associated data is determined, including: Based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, a third tire pressure impact value corresponding to the current vehicle external environment data is determined. Based on the fourth difference between the current tire temperature data and the standard tire temperature data in the standard tire pressure correlation data, the fourth tire pressure influence value corresponding to the current tire temperature data is determined; Based on the third tire pressure impact value and / or the fourth tire pressure impact value, the first tire pressure impact value and the second tire pressure impact value, the tire pressure associated risk value corresponding to the current tire pressure associated data is determined.

5. The method according to claim 4, characterized in that, The current vehicle external environment data includes current external road data, and the third difference includes road condition differences; Based on the third difference between the current vehicle external environment data and the standard vehicle external environment data in the standard tire pressure correlation data, a third tire pressure impact value corresponding to the current vehicle external environment data is determined, including: Based on the third difference between the current external road data and the standard external road data in the standard tire pressure correlation data, the road tire pressure impact value corresponding to the current external road data is determined; The road tire pressure impact value is determined as the third tire pressure impact value corresponding to the current vehicle external environment data.

6. The method according to claim 1, characterized in that, Determining that the current tire pressure value meets the tire pressure warning conditions includes: Determine the tire pressure difference between the current tire pressure value and the initial tire pressure value corresponding to the tire; If the current tire pressure value is less than the initial tire pressure value, and the tire pressure difference is within the set tire pressure warning range, then the current tire pressure value is determined to meet the tire pressure warning conditions. The initial tire pressure value is the standard tire pressure value of the tires collected when the vehicle is stationary.

7. The method according to claim 6, characterized in that, The standard tire pressure value is determined based on the tire type and the climate conditions during the vehicle's operation.

8. A device for determining abnormal tire pressure, characterized in that, The device includes: The tire pressure monitoring module is used to obtain the current tire pressure value of the tires in the vehicle during vehicle operation; The anomaly detection module is used to obtain the current tire pressure associated data of the vehicle tire when it is determined that the current tire pressure value meets the tire pressure warning conditions; the current tire pressure associated data includes the current vehicle driving data and the current vehicle load data. The impact prediction module is used to determine the tire pressure associated risk value corresponding to the current tire pressure associated data based on the difference between the current tire pressure associated data and the standard tire pressure associated data of the vehicle; wherein the standard tire pressure risk value corresponding to the standard tire pressure associated data is within the safety threshold value; The tire pressure warning module is used to determine the tire pressure risk value corresponding to the current tire pressure value based on the tire pressure difference between the current tire pressure value and the standard tire pressure value corresponding to the tire; to determine the current tire pressure risk value by multiplying the tire pressure risk value and the tire pressure associated risk value; to obtain the historical tire pressure risk value corresponding to historical tire pressure associated data similar to the current tire pressure associated data from the vehicle's historical tire pressure anomaly records; wherein, the historical tire pressure risk value is the tire pressure risk value of a tire pressure anomaly that has occurred; if it is determined that the current tire pressure risk value reaches the historical tire pressure risk value, then it is determined that the tire pressure of the tire is abnormal.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

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

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