Tire pressure control method and device for vehicle, vehicle, storage medium and product

Abstract

The application discloses a tire pressure control method and device of a vehicle, the vehicle, a storage medium and a product, and relates to the technical field of tire pressure control of a vehicle. The method comprises the following steps: acquiring environment sensing data, determining the environment temperature of the environment where the vehicle is located based on the environment sensing data; acquiring the reference tire pressure value, the reference temperature and the thermal expansion coefficient of the tire of the vehicle, wherein the reference tire pressure value is the safe tire pressure value of the vehicle at the reference temperature; correcting the reference tire pressure value based on the environment temperature, the thermal expansion coefficient and the reference temperature to obtain a target tire pressure value; and adjusting the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value. The application can dynamically adjust the tire pressure of the vehicle to improve the driving safety.

Description

Technical Field

[0001] This application relates to the field of tire pressure control technology for vehicles, and more particularly to a tire pressure control method, device, vehicle, storage medium, and product for vehicles. Background Technology

[0002] In the automotive manufacturing industry, tire pressure settings and management methods play a crucial role in driving safety and vehicle performance.

[0003] Currently, the tire pressure setting method for vehicle tires is usually based on experience to set a fixed tire pressure value. At the same time, the function of the tire pressure management system on the vehicle is mainly focused on real-time monitoring and abnormal alarms, and it cannot dynamically adjust the tire pressure. As a result, it is difficult to maintain the optimal tire pressure under different driving conditions by using a fixed value for the vehicle tire pressure, thus causing driving safety issues.

[0004] Therefore, how to dynamically adjust vehicle tire pressure to improve driving safety is a problem that urgently needs to be solved. Summary of the Invention

[0005] The main objective of this application is to provide a tire pressure control method, device, vehicle, storage medium, and product for vehicles, which aims to dynamically adjust vehicle tire pressure to improve driving safety.

[0006] To achieve the above objectives, this application provides a tire pressure control method for a vehicle, the tire pressure control method comprising:

[0007] Acquire environmental perception data, and determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data;

[0008] The reference tire pressure, reference temperature, and coefficient of thermal expansion of the vehicle's tires are obtained, wherein the reference tire pressure is the safe tire pressure of the vehicle at the reference temperature.

[0009] The reference tire pressure value is corrected based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain the target tire pressure value;

[0010] The tire pressure of the vehicle is adjusted based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0011] In one embodiment, the step of correcting the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain the corrected recommended tire pressure value includes:

[0012] Determine the difference between the ambient temperature and the reference temperature, and multiply the difference by the coefficient of thermal expansion to obtain a first product;

[0013] Multiply the first product by the reference tire pressure value to obtain the second product;

[0014] Add the second product to the reference tire pressure value to obtain the recommended tire pressure value;

[0015] Use the recommended tire pressure value as the target tire pressure value.

[0016] In one embodiment, after the step of adding the second product and the reference tire pressure value to obtain the recommended tire pressure value, the method further includes:

[0017] The actual load of the vehicle is obtained by detecting the vehicle's load status, and the rated load of the vehicle is also obtained.

[0018] The recommended tire pressure value is compensated based on the actual load and the rated load to obtain the compensated tire pressure value;

[0019] The compensated tire pressure value is used as the corrected target tire pressure value.

[0020] In one embodiment, the step of compensating the recommended tire pressure value based on the actual load and the rated load to obtain a compensated tire pressure value includes:

[0021] Obtain the preset compensation coefficient corresponding to the vehicle;

[0022] Determine the ratio of the actual load to the rated load, and multiply the ratio by the compensation coefficient to obtain a third product;

[0023] Multiply the third product by the recommended tire pressure value to obtain the fourth product;

[0024] The fourth product is added to the recommended tire pressure value to obtain the compensated tire pressure value.

[0025] In one embodiment, the step of acquiring environmental perception data includes:

[0026] The temperature of the vehicle's surroundings is monitored by the vehicle's temperature sensor to obtain the sensor temperature;

[0027] The vehicle's location information is determined by the vehicle's positioning module, and the weather type and seasonal temperature at the vehicle's location are determined based on the location information. The seasonal temperature is a temperature value that characterizes the temperature characteristics of the vehicle's location in the current season.

[0028] The sensor temperature, the weather type, and the seasonal temperature are used as environmental sensing data.

[0029] In one embodiment, the step of determining the weather type and seasonal temperature of the vehicle's location based on the location information includes:

[0030] Based on the location information, obtain the current meteorological data and historical meteorological data of the vehicle's location;

[0031] The weather type and current temperature at the vehicle's location are determined based on the current meteorological data.

[0032] Based on the historical meteorological data, the historical average temperature of the vehicle in the current season is determined, and based on the current temperature and the historical average temperature, the seasonal temperature of the vehicle's location is determined.

[0033] In one embodiment, the step of determining the ambient temperature of the environment in which the vehicle is located based on the environmental perception data includes:

[0034] Determine whether the sensor temperature and the seasonal temperature meet preset constraints, wherein the preset constraints are that both the sensor temperature and the seasonal temperature are within a preset effective range, and the difference between the sensor temperature and the seasonal temperature is within a preset temperature difference range.

[0035] Under the condition of satisfying the preset constraints, the preset first weight and second weight corresponding to the weather type are obtained, wherein the first weight is the weight of the sensor temperature and the second weight is the weight of the seasonal temperature.

[0036] The ambient temperature of the vehicle's environment is obtained by weighted summation of the sensor temperature and the seasonal temperature based on the first weight and the second weight.

[0037] In one embodiment, the method further includes:

[0038] Monitor whether a tire pressure setting command has been received;

[0039] Upon receiving a tire pressure setting command, the system obtains the tire pressure setting value indicated by the tire pressure setting command and adjusts the tire pressure of the vehicle based on the tire pressure setting value until the tire pressure of the vehicle reaches the tire pressure setting value.

[0040] If no tire pressure setting command is received, the step of acquiring environmental perception data and determining the ambient temperature of the vehicle's environment based on the environmental perception data is executed.

[0041] In one embodiment, the step of adjusting the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value includes:

[0042] Monitor whether a deviation setting command has been received;

[0043] Upon receiving a deviation setting instruction, the deviation range indicated by the deviation setting instruction and the actual tire pressure value of the vehicle are obtained;

[0044] Determine whether the deviation between the actual tire pressure value and the target tire pressure value exceeds the deviation range;

[0045] If the deviation exceeds the deviation range, the tire pressure of the vehicle is adjusted based on the target tire pressure value or the tire pressure setting value until the tire pressure of the vehicle reaches the target tire pressure value or the tire pressure setting value.

[0046] Furthermore, to achieve the above objectives, this application also provides a tire pressure control device for a vehicle, the tire pressure control device comprising:

[0047] An environmental perception module is used to acquire environmental perception data and determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data.

[0048] The data acquisition module is used to acquire the reference tire pressure, reference temperature and coefficient of thermal expansion of the vehicle's tires, wherein the reference tire pressure is the safe tire pressure of the vehicle at the reference temperature;

[0049] The correction module is used to correct the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain the target tire pressure value.

[0050] An adjustment module is used to adjust the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0051] In addition, to achieve the above objectives, this application also provides a storage medium, which is a computer-readable storage medium, storing a program for implementing a tire pressure control method for a vehicle, wherein the program for implementing the tire pressure control method for a vehicle is executed by a processor to implement the steps of the tire pressure control method for a vehicle as described above.

[0052] In addition, to achieve the above objectives, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the vehicle tire pressure control method described above.

[0053] This application provides a tire pressure control method for a vehicle. The method involves acquiring environmental perception data, determining the ambient temperature of the vehicle's environment based on the data, and obtaining the vehicle's tire pressure, reference temperature, and coefficient of thermal expansion. The reference tire pressure is the safe tire pressure value for the vehicle at the reference temperature. The reference tire pressure is then corrected based on the ambient temperature, coefficient of thermal expansion, and reference temperature to obtain a target tire pressure value. Finally, the vehicle tire pressure is adjusted based on the target tire pressure value until the vehicle tire pressure reaches the target value.

[0054] In summary, this application dynamically calculates the corrected target tire pressure value based on the ambient temperature of the vehicle's environment and multiple characteristic data of the vehicle's tires (i.e., reference tire pressure, reference temperature, and coefficient of thermal expansion), and then dynamically adjusts the vehicle's tire pressure according to the target tire pressure value. Thus, compared to the traditional method of setting a fixed tire pressure value based on experience, this application achieves dynamic adjustment of vehicle tire pressure based on ambient temperature, enabling the vehicle to maintain optimal tire pressure under different driving conditions, thereby improving driving safety. Attached Figure Description

[0055] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0056] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1 This is a flowchart illustrating the first embodiment of the tire pressure control method for the vehicle described in this application.

[0058] Figure 2 This is a schematic diagram of the automatic tire pressure correction process involved in an embodiment of the tire pressure control method for the vehicle of this application;

[0059] Figure 3 This is a schematic diagram of the tire pressure control system architecture involved in an embodiment of the tire pressure control method for the vehicle of this application;

[0060] Figure 4 This is a schematic diagram of the module structure of the tire pressure control device for the vehicle in this application;

[0061] Figure 5 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the tire pressure control method of the vehicle in this application embodiment.

[0062] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0063] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0064] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0065] The main solution of this application is as follows: acquiring environmental perception data, determining the ambient temperature of the environment in which the vehicle is located based on the environmental perception data; acquiring the reference tire pressure value, reference temperature, and coefficient of thermal expansion of the vehicle's tires, wherein the reference tire pressure value is the safe tire pressure value of the vehicle at the reference temperature; correcting the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain a target tire pressure value; adjusting the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0066] Currently, the tire pressure setting method for vehicle tires is usually based on experience to set a fixed tire pressure value. At the same time, the function of the tire pressure management system on the vehicle is mainly focused on real-time monitoring and abnormal alarms, and it cannot dynamically adjust the tire pressure. As a result, it is difficult to maintain the optimal tire pressure under different driving conditions by using a fixed value for the vehicle tire pressure, thus causing driving safety issues.

[0067] Therefore, how to dynamically adjust vehicle tire pressure to improve driving safety is a problem that urgently needs to be solved.

[0068] This application dynamically calculates a corrected target tire pressure value based on the ambient temperature of the vehicle's environment and multiple characteristic data of the vehicle's tires (i.e., reference tire pressure, reference temperature, and coefficient of thermal expansion), and then dynamically adjusts the vehicle's tire pressure according to the target tire pressure value. Thus, compared to the traditional method of setting a fixed tire pressure value based on experience, this application achieves dynamic adjustment of vehicle tire pressure based on ambient temperature, enabling the vehicle to maintain optimal tire pressure under different driving conditions, thereby improving driving safety.

[0069] It should be noted that the execution subject of the tire pressure control method for vehicles in this application can be a tire pressure control system, or a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a vehicle capable of performing the above functions. This embodiment does not specifically limit this. The following uses a tire pressure control system as the execution subject as an example to describe this embodiment and the following embodiments.

[0070] Based on this, this application proposes a tire pressure control method for a vehicle according to a first embodiment. Please refer to [link / reference needed]. Figure 1 The tire pressure control method for the vehicle includes steps S10 to S30:

[0071] Step S10: Obtain environmental perception data and determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data;

[0072] It should be noted that the environmental perception data includes at least the temperature monitored by the vehicle's temperature sensor, the weather type at the vehicle's location, and the seasonal temperature. The seasonal temperature refers to the temperature value that characterizes the temperature characteristics of the season at the current time at the vehicle's location.

[0073] In this embodiment, step S10 may include:

[0074] Step S101: Monitor the temperature of the environment where the vehicle is located using the vehicle's temperature sensor to obtain the sensor temperature;

[0075] It should be noted that the tire pressure control system includes a temperature sensor and a humidity sensor. The temperature sensor monitors the temperature of the vehicle's surroundings and obtains the monitored temperature value (hereinafter referred to as sensor temperature for distinction). In addition, the humidity sensor detects the humidity of the vehicle's surroundings and displays the monitored humidity value on the vehicle's infotainment interface for user reference, such as reminding the user to pay attention to tire pressure when driving in rainy weather.

[0076] Step S102: Determine the location information of the vehicle through the vehicle's positioning module, and determine the weather type and seasonal temperature of the vehicle's location based on the location information, wherein the seasonal temperature is a temperature value that characterizes the temperature characteristics of the vehicle's location in the current season.

[0077] It should be noted that the tire pressure control system also includes a positioning module and a networking module. The positioning module can be a GPS (Global Positioning System). The positioning module is used to determine the vehicle's geographical location, and the networking module is used to determine the weather type and seasonal temperature at the vehicle's location based on the vehicle's location information.

[0078] In this embodiment, step S102 may include:

[0079] Step A10: Based on the location information, obtain the current meteorological data and historical meteorological data of the vehicle's location;

[0080] It should be noted that this application does not limit the specific length of the time range corresponding to the current meteorological data and historical meteorological data. However, in this embodiment, the current meteorological data includes at least the meteorological data of the vehicle's location on the current day, and the historical meteorological data includes at least the temperature data of the city where the vehicle is located during the same season in the past year. For example, the current meteorological data is the weather forecast data of the city where the vehicle is located on the current day obtained by the system calling the meteorological API (Application Programming Interface); the historical meteorological data is the historical temperature data of the city where the vehicle is located during the same season in the past 5 years.

[0081] Step A20: Determine the weather type and current temperature at the vehicle's location based on the current meteorological data;

[0082] The current weather type and temperature value at the vehicle's location are determined based on the current meteorological data (hereinafter referred to as the current temperature for distinction).

[0083] Step A30: Determine the historical average temperature of the vehicle in the current season based on the historical meteorological data, and determine the seasonal temperature of the vehicle's location based on the current temperature and the historical average temperature.

[0084] The average temperature of the vehicle in the current season over the past few years is calculated based on historical meteorological data (hereinafter referred to as the historical average temperature for distinction), and then the seasonal temperature of the vehicle's location is determined based on the current temperature and the historical average temperature.

[0085] In one feasible implementation, the average of the current temperature and the historical average temperature is calculated, and this average is used as the seasonal temperature at the vehicle's location. In another feasible implementation, the current temperature and the historical average temperature are weighted and summed according to preset weight values ​​to obtain the seasonal temperature at the vehicle's location. Thus, this application uses the historical average temperature to assist in calibrating the current temperature, improving the accuracy of the seasonal temperature measurement, thereby improving the precision and safety of tire pressure adjustment.

[0086] Step S103: Use the sensor temperature, the weather type, and the seasonal temperature as environmental sensing data.

[0087] The sensor temperature monitored by the temperature sensor, the weather type at the vehicle's location, and the seasonal temperature are used as environmental perception data.

[0088] In this embodiment, step S10 may include:

[0089] Step S104: Determine whether the sensor temperature and the seasonal temperature meet the preset constraint conditions, wherein the preset constraint conditions are that both the sensor temperature and the seasonal temperature are within a preset effective range, and the difference between the sensor temperature and the seasonal temperature is within a preset temperature difference range.

[0090] It should be noted that, to ensure the validity of the sensor temperature and seasonal temperature, an effective range for the data is set, namely the aforementioned preset effective range. This can be understood as a numerical range set based on empirical values ​​and natural laws. A range for the difference between the sensor temperature and the seasonal temperature is also set, namely a preset temperature difference range. This embodiment does not limit the upper limit of the preset temperature difference range; in this embodiment, the preset temperature difference range is set to 0 to 10 degrees Celsius. Furthermore, constraints are set for the data, namely the aforementioned preset constraints. The preset constraints are that both the sensor temperature and the seasonal temperature are within the preset effective range, and the difference between the sensor temperature and the seasonal temperature is within the preset difference range.

[0091] In one feasible implementation, if the sensor temperature is not within the preset effective range, but the seasonal temperature is within the preset effective range, the seasonal temperature is taken as the ambient temperature, and a "sensor abnormality" prompt message is displayed on the vehicle interface; if the sensor temperature is within the preset effective range, but the seasonal temperature is not within the preset effective range, the sensor temperature is taken as the ambient temperature, and a "network abnormality" prompt message is displayed on the vehicle interface.

[0092] Step S105: Under the condition of satisfying the preset constraints, obtain the preset first weight and second weight corresponding to the weather type, wherein the first weight is the weight of the sensor temperature and the second weight is the weight of the seasonal temperature.

[0093] It should be noted that different weighting percentages are pre-set for different weather types. These weighting percentages refer to the weighted sum of sensor temperature and seasonal temperature to obtain the ambient temperature. For example, weather types are pre-categorized into two main types: common weather and extreme weather. Common weather can include sunny, cloudy, overcast, rain, snow, and fog, while extreme weather can include heavy rain, heavy snow, cold waves, high temperatures, severe convection, and sandstorms. When the current weather type is common, the weight of sensor temperature is set to 80%, and the weight of seasonal temperature is set to 20%, thus prioritizing responses to real-time environmental changes while smoothing temperature fluctuations during seasonal transitions. When the current weather type is extreme, the weight of sensor temperature is set to 60%, and the weight of seasonal temperature is set to 40%, thereby reducing the impact of temperature sensor data delays or deviations caused by extreme environments on tire pressure adjustments.

[0094] If the sensor temperature and seasonal temperature meet the preset constraints, the preset weight of the sensor temperature corresponding to the weather type (hereinafter referred to as the first weight for distinction) and the weight of the seasonal temperature (hereinafter referred to as the second weight for distinction) are obtained.

[0095] Step S106: Based on the first weight and the second weight, the sensor temperature and the seasonal temperature are weighted and summed to obtain the ambient temperature of the environment in which the vehicle is located.

[0096] The sensor temperature and seasonal temperature are weighted and summed based on the first and second weights to obtain the ambient temperature of the vehicle's environment.

[0097] Thus, since rising summer temperatures lead to increased tire pressure and falling winter temperatures lead to decreased tire pressure, failure to adjust tire pressure in a timely manner can result in tire blowouts due to excessively high tire pressure in summer and increased rolling resistance and fuel consumption due to excessively low tire pressure in winter. Furthermore, in cold regions, tire pressure needs to be appropriately increased to cope with the low temperatures, while in hot regions, tire pressure needs to be decreased to prevent overheating. Therefore, this application considers the impact of season and geographical location on tire pressure and dynamically adjusts the recommended tire pressure value to avoid tire blowouts caused by excessively high tire pressure in summer and increased fuel consumption caused by insufficient tire pressure in winter.

[0098] Step S20: Obtain the reference tire pressure, reference temperature, and coefficient of thermal expansion of the vehicle's tires, wherein the reference tire pressure is the safe tire pressure of the vehicle at the reference temperature;

[0099] It should be noted that the tire pressure control system also includes a tire pressure database for storing tire pressure specifications for multiple vehicle models. The tire pressure specifications include the reference tire pressure value, reference temperature, and coefficient of thermal expansion for each vehicle model. In this embodiment, the specific value of the reference temperature is not limited; in this embodiment, the reference temperature is 25 degrees Celsius. The reference tire pressure value is the recommended tire pressure for the current vehicle model at the reference temperature. The coefficient of thermal expansion is the coefficient of thermal expansion of the tire material for the current vehicle model, typically the coefficient of thermal expansion of rubber, with a value of 0.0035, used to quantify the impact of temperature on tire pressure.

[0100] The tire pressure database also stores the mapping relationship between various tire pressure specifications and VIN (Vehicle Identification Number) codes that represent vehicle models. Therefore, the reference tire pressure, reference temperature, and coefficient of thermal expansion of the vehicle's tires can be obtained from the tire pressure database based on the current vehicle's VIN code.

[0101] Step S30: Correct the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain the target tire pressure value;

[0102] The baseline tire pressure value is corrected based on the monitored ambient temperature, the coefficient of thermal expansion obtained from the database, and the reference temperature to obtain the corrected tire pressure value (hereinafter referred to as the target tire pressure value for distinction).

[0103] Step S40: Adjust the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0104] After obtaining the target tire pressure value, the vehicle tire pressure is adjusted based on the target tire pressure value until the vehicle tire pressure reaches the target tire pressure value. Then, the ambient temperature of the vehicle's environment is monitored to update the target tire pressure value when the ambient temperature changes.

[0105] Thus, this embodiment dynamically calculates the corrected target tire pressure value based on the ambient temperature of the vehicle's environment and multiple characteristic data of the vehicle's tires (i.e., reference tire pressure value, reference temperature, and coefficient of thermal expansion), and dynamically adjusts the vehicle's tire pressure according to the target tire pressure value. Compared to the traditional method of setting a fixed tire pressure value based on experience, this embodiment achieves dynamic adjustment of vehicle tire pressure based on ambient temperature, enabling the vehicle to maintain optimal tire pressure under different driving conditions, thereby improving driving safety.

[0106] In this embodiment, step S30 may include:

[0107] Step S301: Determine the difference between the ambient temperature and the reference temperature, and multiply the difference by the coefficient of thermal expansion to obtain a first product;

[0108] Step S302: Multiply the first product by the reference tire pressure value to obtain the second product;

[0109] Step S303: Add the second product to the reference tire pressure value to obtain the recommended tire pressure value;

[0110] Step S304: Use the recommended tire pressure value as the target tire pressure value.

[0111] First, calculate the difference between the ambient temperature and the reference temperature. Multiply this difference by the coefficient of thermal expansion to obtain a product (hereinafter referred to as the first product for distinction). Then, multiply the first product by the reference tire pressure value to obtain the second product, which can be understood as a correction amount. Add the second product to the reference tire pressure value to obtain the temperature-corrected tire pressure value (hereinafter referred to as the recommended tire pressure value for distinction). Use the recommended tire pressure value as the target tire pressure value.

[0112] For example, if the reference tire pressure is represented as P0, the coefficient of thermal expansion is represented as α, the ambient temperature is represented as T, and the reference temperature is represented as T0, then the formula for calculating the tire pressure correction based on temperature is: P=P0*(1+α(T-T0)), where P represents the recommended tire pressure.

[0113] In this embodiment, after step S302, the tire pressure control method for the vehicle of this application further includes:

[0114] Step B10: Detect the load status of the vehicle to obtain the actual load of the vehicle, and obtain the rated load of the vehicle.

[0115] It should be noted that the vehicle's tire pressure database also stores the maximum load capacity for each vehicle model, i.e., the rated load capacity mentioned above. The rated load capacity of the current vehicle can also be obtained from the database based on the current vehicle's VIN code.

[0116] The vehicle's load status is read through the OBD (On-Board Diagnostics) interface to obtain the vehicle's current actual load and rated load.

[0117] Step B20: Compensate the recommended tire pressure value based on the actual load and the rated load to obtain the compensated tire pressure value;

[0118] The recommended tire pressure value is compensated a second time based on the vehicle's actual load and rated load to obtain the compensated tire pressure value (hereinafter referred to as the compensated tire pressure value for distinction).

[0119] In this embodiment, step B20 may include:

[0120] Step B201: Obtain the preset compensation coefficient corresponding to the vehicle;

[0121] Step B202: Determine the ratio of the actual load to the rated load, and multiply the ratio by the compensation coefficient to obtain a third product;

[0122] Step B203: Multiply the third product by the recommended tire pressure value to obtain the fourth product;

[0123] Step B204: Add the fourth product to the recommended tire pressure value to obtain the compensated tire pressure value.

[0124] It should be noted that the load compensation coefficient is determined in advance based on the calibration test data of the current vehicle model, i.e., the preset compensation coefficient mentioned above. For example, the preset compensation coefficient for a sedan is 0.08; the preset compensation coefficient for an SUV is 0.12; and the preset compensation coefficient for a truck is 0.15.

[0125] First, obtain the vehicle's preset compensation coefficient, and determine the ratio of the actual load to the rated load. Multiply this ratio by the compensation coefficient to obtain a product (hereinafter referred to as the third product for distinction). Multiply the third product by the recommended tire pressure value to obtain a product (hereinafter referred to as the fourth product for distinction). The fourth product can be understood as the compensation amount. Finally, add the fourth product to the recommended tire pressure value to obtain the compensated tire pressure value.

[0126] For example, the compensation coefficient is denoted as k, and the actual vehicle load is denoted as W. load The vehicle's rated load capacity is expressed as W. max Therefore, the formula for calculating the recommended tire pressure value compensation based on vehicle load is as follows:

[0127]

[0128] Step B30: Use the compensated tire pressure value as the corrected target tire pressure value.

[0129] The compensated tire pressure value is used as the corrected target tire pressure value. This further compensates for the recommended tire pressure value based on the vehicle's load, improving the accuracy of the target tire pressure value.

[0130] For example, such as Figure 2The diagram illustrates the automatic tire pressure correction process. First, the ambient temperature of the vehicle's environment is monitored by the vehicle's temperature sensor. Then, the vehicle's baseline tire pressure, baseline temperature, and tire thermal expansion coefficient are retrieved from the pre-stored tire pressure database. Based on the ambient temperature and the data from the database, the baseline tire pressure is corrected to obtain a corrected recommended tire pressure. Next, the vehicle's current actual load and the vehicle's rated load from the pre-stored tire pressure database are obtained. Based on the actual load, rated load, and a preset compensation coefficient, the recommended tire pressure is further compensated to obtain a compensated tire pressure. This compensated tire pressure is used as the target tire pressure. Finally, it is determined whether the vehicle's current actual tire pressure exceeds a preset deviation range. If so, the vehicle's tire pressure is automatically adjusted based on the target tire pressure until the vehicle's tire pressure reaches the target value.

[0131] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description and will not be repeated hereafter. In addition, the tire pressure control method for the vehicle further includes:

[0132] Step C10: Monitor whether a tire pressure setting command has been received;

[0133] It should be noted that the vehicle also includes a vehicle-to-everything (V2X) interface, where users can set custom tire pressure values ​​and trigger tire pressure setting commands. It should be understood that the V2X interface limits the range of tire pressure values ​​that users can set; this range refers to the safe tire pressure range for the current vehicle model. When the user-defined tire pressure value exceeds this range, the system outputs an "Invalid input value" message on the V2X interface and automatically adjusts to the closest value within the range to the user-defined tire pressure. Thus, this embodiment of the application achieves compatibility with both manual setting and automatic correction.

[0134] Step C20: Upon receiving a tire pressure setting command, obtain the tire pressure setting value indicated by the tire pressure setting command, and adjust the tire pressure of the vehicle based on the tire pressure setting value until the tire pressure of the vehicle reaches the tire pressure setting value.

[0135] Upon receiving a tire pressure setting command, in response to the command, the vehicle obtains the tire pressure setting value (i.e., the user-defined tire pressure value) indicated in the command and adjusts the vehicle's tire pressure based on this value until the vehicle's tire pressure reaches the set value.

[0136] In one feasible implementation, after obtaining the tire pressure setting value, the current actual tire pressure value of the vehicle is obtained, and it is determined whether the tire pressure setting value and the actual tire pressure value are consistent. If they are consistent, no adjustment is required; if they are inconsistent, the vehicle tire pressure is adjusted to the tire pressure setting value.

[0137] Step C30: If no tire pressure setting command is received, perform the step of acquiring environmental perception data and determining the ambient temperature of the environment in which the vehicle is located based on the environmental perception data.

[0138] If no tire pressure setting command is received, step S10 is executed, which involves dynamically adjusting the vehicle's tire pressure using an automatic correction method. In other words, this embodiment prioritizes adjusting the tire pressure based on the user-set value to meet the user's personalized needs.

[0139] For example, an electromagnetic shut-off valve is installed on the tire inflation line of a vehicle. When tire pressure needs to be adjusted, the electromagnetic shut-off valve is opened to increase or decrease the tire pressure. During the tire pressure adjustment process, the tire pressure is continuously monitored. When the actual tire pressure reaches the set or target tire pressure value, the electromagnetic shut-off valve is closed. Thus, this embodiment of the application achieves tire pressure adjustment by controlling the opening and closing of the electromagnetic shut-off valve, avoiding over-inflation problems.

[0140] In this embodiment, step S40 may include:

[0141] Step S401: Monitor whether a deviation setting command has been received;

[0142] It should be noted that users can also set the deviation range and trigger the deviation setting command through the vehicle's infotainment interface. The deviation range refers to the acceptable range of deviation between the actual tire pressure value and the target tire pressure value or the set tire pressure value.

[0143] Step S402: Upon receiving a deviation setting instruction, obtain the deviation range indicated by the deviation setting instruction and the actual tire pressure value of the vehicle;

[0144] Upon receiving a deviation setting command, respond to the deviation setting command and obtain the deviation range indicated by the deviation setting command and the actual tire pressure value of the vehicle.

[0145] Step S403: Determine whether the deviation between the actual tire pressure value and the target tire pressure value exceeds the deviation range;

[0146] Calculate the deviation between the actual tire pressure value and the target tire pressure value, and determine whether the deviation exceeds the user-defined deviation range.

[0147] Step S404: If the deviation exceeds the deviation range, adjust the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0148] If the deviation exceeds the user-defined deviation range, the vehicle's tire pressure will be adjusted based on the target tire pressure value or the tire pressure setting value until the vehicle's tire pressure reaches the target tire pressure value or the tire pressure setting value; if the deviation is within the deviation range, no tire pressure adjustment is required.

[0149] For example, such as Figure 3 The diagram shows the architecture of a tire pressure control system. The tire pressure control system includes at least a temperature and humidity sensor, a positioning module, a networking module, a tire pressure database, a vehicle-to-everything (V2X) interface, a tire pressure monitoring module, an alarm module, a fault self-diagnosis module, and a data processing module. The tire pressure monitoring module monitors the vehicle's actual tire pressure in real time. The alarm module provides audible and visual alarms when tire pressure changes abruptly to prevent false alarms caused by sensor malfunctions. The V2X interface in this application can display the vehicle's real-time tire pressure value (i.e., the actual tire pressure value), the corrected recommended tire pressure value, the target tire pressure value, inflation status, and alarm information. The fault self-diagnosis module periodically checks the working status of key components such as sensors and solenoid valves to ensure normal system operation. The data processing module processes data obtained from the temperature and humidity sensor, positioning module, networking module, and tire pressure database to obtain the target tire pressure value.

[0150] Thus, this application embodiment achieves compatibility with both manual setting and automatic correction functions. Specifically, when the user defines a tire pressure value, the user-defined tire pressure value is used as the basis for tire pressure adjustment. When the user does not define a tire pressure value, the ambient temperature is automatically monitored to correct the tire pressure value, and the corrected target tire pressure value is used as the basis for tire pressure adjustment. Furthermore, when the user defines a tire pressure deviation range, the tire pressure is adjusted based on the deviation range. This reduces the number of tire pressure adjustments while ensuring vehicle driving safety, thus balancing personalization and safety.

[0151] This application also provides a tire pressure control device for a vehicle, please refer to... Figure 4 The tire pressure control device for the vehicle includes:

[0152] The environmental perception module 10 is used to acquire environmental perception data and determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data.

[0153] The data acquisition module 20 is used to acquire the reference tire pressure value, reference temperature and coefficient of thermal expansion of the vehicle's tires, wherein the reference tire pressure value is the safe tire pressure value of the vehicle at the reference temperature;

[0154] Correction module 30 is used to correct the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion and the reference temperature to obtain the target tire pressure value;

[0155] The adjustment module 40 is used to adjust the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0156] Optionally, the correction module 30 is further configured to:

[0157] Determine the difference between the ambient temperature and the reference temperature, and multiply the difference by the coefficient of thermal expansion to obtain a first product;

[0158] Multiply the first product by the reference tire pressure value to obtain the second product;

[0159] Add the second product to the reference tire pressure value to obtain the recommended tire pressure value;

[0160] Use the recommended tire pressure value as the target tire pressure value.

[0161] Optionally, the correction module 30 is further configured to:

[0162] The actual load of the vehicle is obtained by detecting the vehicle's load status, and the rated load of the vehicle is also obtained.

[0163] The recommended tire pressure value is compensated based on the actual load and the rated load to obtain the compensated tire pressure value;

[0164] The compensated tire pressure value is used as the corrected target tire pressure value.

[0165] Optionally, the correction module 30 is further configured to:

[0166] Obtain the preset compensation coefficient corresponding to the vehicle;

[0167] Determine the ratio of the actual load to the rated load, and multiply the ratio by the compensation coefficient to obtain a third product;

[0168] Multiply the third product by the recommended tire pressure value to obtain the fourth product;

[0169] The fourth product is added to the recommended tire pressure value to obtain the compensated tire pressure value.

[0170] Optionally, the environment sensing module 10 is further configured to:

[0171] The temperature of the vehicle's surroundings is monitored by the vehicle's temperature sensor to obtain the sensor temperature;

[0172] The vehicle's location information is determined by the vehicle's positioning module, and the weather type and seasonal temperature at the vehicle's location are determined based on the location information. The seasonal temperature is a temperature value that characterizes the temperature characteristics of the vehicle's location in the current season.

[0173] The sensor temperature, the weather type, and the seasonal temperature are used as environmental sensing data.

[0174] Optionally, the environment sensing module 10 is further configured to:

[0175] Based on the location information, obtain the current meteorological data and historical meteorological data of the vehicle's location;

[0176] The weather type and current temperature at the vehicle's location are determined based on the current meteorological data.

[0177] Based on the historical meteorological data, the historical average temperature of the vehicle in the current season is determined, and based on the current temperature and the historical average temperature, the seasonal temperature of the vehicle's location is determined.

[0178] Optionally, the environment sensing module 10 is further configured to:

[0179] Determine whether the sensor temperature and the seasonal temperature meet preset constraints, wherein the preset constraints are that both the sensor temperature and the seasonal temperature are within a preset effective range, and the difference between the sensor temperature and the seasonal temperature is within a preset temperature difference range.

[0180] Under the condition of satisfying the preset constraints, the preset first weight and second weight corresponding to the weather type are obtained, wherein the first weight is the weight of the sensor temperature and the second weight is the weight of the seasonal temperature.

[0181] The ambient temperature of the vehicle's environment is obtained by weighted summation of the sensor temperature and the seasonal temperature based on the first weight and the second weight.

[0182] Optionally, the tire pressure control device of the vehicle further includes a human-machine interface module, the human-machine interface module being used for:

[0183] Monitor whether a tire pressure setting command has been received;

[0184] Upon receiving a tire pressure setting command, the system obtains the tire pressure setting value indicated by the command and adjusts the vehicle's tire pressure based on the set value until the vehicle's tire pressure reaches the set value.

[0185] If no tire pressure setting command is received, the step of acquiring environmental perception data and determining the ambient temperature of the vehicle's environment based on the environmental perception data is executed.

[0186] Optionally, the human-computer interaction module is further used for:

[0187] Monitor whether a deviation setting command has been received;

[0188] Upon receiving a deviation setting instruction, the deviation range indicated by the deviation setting instruction and the actual tire pressure value of the vehicle are obtained;

[0189] Determine whether the deviation between the actual tire pressure value and the target tire pressure value exceeds the deviation range;

[0190] If the deviation exceeds the deviation range, the tire pressure of the vehicle is adjusted based on the target tire pressure value or the tire pressure setting value until the tire pressure of the vehicle reaches the target tire pressure value or the tire pressure setting value.

[0191] The tire pressure control device for vehicles provided in this application, employing the tire pressure control method described in the above embodiments, can solve the technical problem of how to dynamically adjust vehicle tire pressure to improve driving safety. Compared with the prior art, the beneficial effects of the tire pressure control device for vehicles provided in this application are the same as those of the tire pressure control method provided in the above embodiments, and other technical features in the tire pressure control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0192] This application provides a vehicle, the vehicle including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the tire pressure control method of the vehicle in the first embodiment described above.

[0193] The following is for reference. Figure 5 It shows a structural schematic diagram of a vehicle suitable for implementing the embodiments of this application. Figure 5 The vehicle shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0194] like Figure 5As shown, the vehicle may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory 1002 or a program loaded from a storage device 1003 into a random access memory 1004. The random access memory 1004 also stores various programs and data required for vehicle operation. The processing unit 1001, the read-only memory 1002, and the random access memory 1004 are interconnected via a bus 1005. An input / output interface 1006 is also connected to the bus. Typically, the following systems can be connected to the input / output interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the vehicle to exchange data via wireless or wired communication with other devices. Although the diagram shows vehicles with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0195] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from read-only memory 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0196] The vehicle provided in this application, employing the tire pressure control method described in the above embodiments, can solve the technical problem of how to dynamically adjust vehicle tire pressure to improve driving safety. Compared with the prior art, the beneficial effects of the vehicle provided in this application are the same as those of the tire pressure control method provided in the above embodiments, and other technical features of the vehicle are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0197] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0198] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0199] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the tire pressure control method for a vehicle in the above embodiments.

[0200] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0201] The aforementioned computer-readable storage medium may be included in the vehicle or may exist independently and not installed in the vehicle.

[0202] The aforementioned computer-readable storage medium carries one or more programs that, when executed by a vehicle, cause the vehicle to: acquire environmental perception data; determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data; acquire a reference tire pressure value, a reference temperature, and a coefficient of thermal expansion of the vehicle's tires, wherein the reference tire pressure value is a safe tire pressure value for the vehicle at the reference temperature; correct the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain a target tire pressure value; and adjust the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

[0203] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0204] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0205] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0206] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the tire pressure control method for the vehicle described above. This solves the technical problem of how to dynamically adjust vehicle tire pressure to improve driving safety. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the tire pressure control method for the vehicle provided in the above embodiments, and will not be repeated here.

[0207] This application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the vehicle tire pressure control method described above.

[0208] The computer program product provided in this application can dynamically adjust vehicle tire pressure to improve driving safety. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the vehicle tire pressure control method provided in the above embodiments, and will not be repeated here.

[0209] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A tire pressure control method for a vehicle, characterized in that, The tire pressure control method for the vehicle includes: Acquire environmental perception data, and determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data; The reference tire pressure, reference temperature, and coefficient of thermal expansion of the vehicle's tires are obtained, wherein the reference tire pressure is the safe tire pressure of the vehicle at the reference temperature. The reference tire pressure value is corrected based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain the target tire pressure value; The tire pressure of the vehicle is adjusted based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value; The step of correcting the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain the target tire pressure value includes: Determine the difference between the ambient temperature and the reference temperature, and multiply the difference by the coefficient of thermal expansion to obtain a first product; Multiply the first product by the reference tire pressure value to obtain the second product; Add the second product to the reference tire pressure value to obtain the recommended tire pressure value; Use the recommended tire pressure value as the target tire pressure value.

2. The tire pressure control method for a vehicle as described in claim 1, characterized in that, After the step of adding the second product and the reference tire pressure value to obtain the recommended tire pressure value, the method further includes: The actual load of the vehicle is obtained by detecting the vehicle's load status, and the rated load of the vehicle is also obtained. The recommended tire pressure value is compensated based on the actual load and the rated load to obtain the compensated tire pressure value; The compensated tire pressure value is used as the corrected target tire pressure value.

3. The tire pressure control method for a vehicle as described in claim 2, characterized in that, The step of compensating the recommended tire pressure value based on the actual load and the rated load to obtain the compensated tire pressure value includes: Obtain the preset compensation coefficient corresponding to the vehicle; Determine the ratio of the actual load to the rated load, and multiply the ratio by the compensation coefficient to obtain a third product; Multiply the third product by the recommended tire pressure value to obtain the fourth product; The fourth product is added to the recommended tire pressure value to obtain the compensated tire pressure value.

4. The tire pressure control method for a vehicle as described in claim 1, characterized in that, The steps for acquiring environmental perception data include: The temperature of the vehicle's surroundings is monitored by the vehicle's temperature sensor to obtain the sensor temperature; The vehicle's location information is determined by the vehicle's positioning module, and the weather type and seasonal temperature at the vehicle's location are determined based on the location information. The seasonal temperature is a temperature value that characterizes the temperature characteristics of the vehicle's location in the current season. The sensor temperature, the weather type, and the seasonal temperature are used as environmental sensing data.

5. The tire pressure control method for a vehicle as described in claim 4, characterized in that, The step of determining the weather type and seasonal temperature of the vehicle's location based on the location information includes: Based on the location information, obtain the current meteorological data and historical meteorological data of the vehicle's location; The weather type and current temperature at the vehicle's location are determined based on the current meteorological data. Based on the historical meteorological data, the historical average temperature of the vehicle in the current season is determined, and based on the current temperature and the historical average temperature, the seasonal temperature of the vehicle's location is determined.

6. The tire pressure control method for a vehicle as described in claim 4, characterized in that, The step of determining the ambient temperature of the vehicle's environment based on the environmental perception data includes: Determine whether the sensor temperature and the seasonal temperature meet preset constraints, wherein the preset constraints are that both the sensor temperature and the seasonal temperature are within a preset effective range, and the difference between the sensor temperature and the seasonal temperature is within a preset temperature difference range. Under the condition of satisfying the preset constraints, the preset first weight and second weight corresponding to the weather type are obtained, wherein the first weight is the weight of the sensor temperature and the second weight is the weight of the seasonal temperature. The ambient temperature of the vehicle's environment is obtained by weighted summation of the sensor temperature and the seasonal temperature based on the first weight and the second weight.

7. The tire pressure control method for a vehicle as described in any one of claims 1 to 6, characterized in that, The method further includes: Monitor whether a tire pressure setting command has been received; Upon receiving a tire pressure setting command, the system obtains the tire pressure setting value indicated by the command and adjusts the vehicle's tire pressure based on the set value until the vehicle's tire pressure reaches the set value. If no tire pressure setting command is received, the step of acquiring environmental perception data and determining the ambient temperature of the vehicle's environment based on the environmental perception data is executed.

8. The tire pressure control method for a vehicle as described in claim 7, characterized in that, The step of adjusting the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value includes: Monitor whether a deviation setting command has been received; Upon receiving a deviation setting instruction, the deviation range indicated by the deviation setting instruction and the actual tire pressure value of the vehicle are obtained; Determine whether the deviation between the actual tire pressure value and the target tire pressure value exceeds the deviation range; If the deviation exceeds the deviation range, the tire pressure of the vehicle is adjusted based on the target tire pressure value or the tire pressure setting value until the tire pressure of the vehicle reaches the target tire pressure value or the tire pressure setting value.

9. A tire pressure control device for a vehicle, characterized in that, The vehicle's tire pressure control device includes: An environmental perception module is used to acquire environmental perception data and determine the ambient temperature of the environment in which the vehicle is located based on the environmental perception data. The data acquisition module is used to acquire the reference tire pressure, reference temperature and coefficient of thermal expansion of the vehicle's tires, wherein the reference tire pressure is the safe tire pressure of the vehicle at the reference temperature; The correction module is used to correct the reference tire pressure value based on the ambient temperature, the coefficient of thermal expansion, and the reference temperature to obtain a target tire pressure value; determine the difference between the ambient temperature and the reference temperature, multiply the difference by the coefficient of thermal expansion to obtain a first product; multiply the first product by the reference tire pressure value to obtain a second product; add the second product to the reference tire pressure value to obtain a recommended tire pressure value; and use the recommended tire pressure value as the target tire pressure value. An adjustment module is used to adjust the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value.

10. A vehicle, characterized in that, The vehicle includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the tire pressure control method for the vehicle as claimed in any one of claims 1 to 8.

11. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, on which a computer program is stored, and when executed by a processor, the computer program implements the steps of the tire pressure control method for a vehicle as described in any one of claims 1 to 8.

12. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the tire pressure control method for a vehicle as described in any one of claims 1 to 8.

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