Tire pressure adjusting method, readable storage medium and vehicle

Abstract

The invention provides a tire pressure adjusting method, a readable storage medium and a vehicle, and is applied to the technical field of tire pressure control. The method comprises the steps that in the vehicle driving process, before a current vehicle drives into a target road section in front, the target tire pressure of the current vehicle driving on the target road section is determined, the target performance parameter of the current vehicle driving on the target road section at the target tire pressure is predicted, and under the condition that the target performance parameter reaches the standard, the target tire pressure of the current vehicle is determined; and adjusting the tire pressure of the current vehicle to the target tire pressure. According to the method provided by the invention, the tire pressure of the vehicle can be adjusted to the target tire pressure with relatively high reliability before the vehicle is driven into the target road section in front of the vehicle, so that the vehicle has relatively high performance after being driven into the target road section.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire pressure control, and more particularly, to a tire pressure adjustment method, a readable storage medium and a vehicle in the technical field of tire pressure control. BACKGROUND

[0002] At present, in order to improve the performance of a vehicle, one way is to determine a target tire pressure matched with a front road according to a road parameter of the front road before the vehicle enters the front road, and adjust the tire pressure of the vehicle to the target tire pressure, so as to improve the performance of the vehicle when the vehicle runs on the front road after entering the front road.

[0003] The problem of the above method is that the reliability of the target tire pressure determined according to the road parameter is poor, and after the tire pressure is adjusted to the target tire pressure, the performance of the vehicle may be not only unable to be improved, but also may be reduced. In short, the reliability of the current tire pressure adjustment method is low, and a tire pressure adjustment method with high reliability is urgently needed. SUMMARY

[0004] The present application provides a tire pressure adjustment method, a readable storage medium and a vehicle, which can improve the reliability in the process of adjusting the tire pressure of the vehicle.

[0005] In a first aspect, a tire pressure adjustment method is provided, and the method comprises: determining a target tire pressure of a current vehicle when the current vehicle runs on a target road ahead of the current vehicle before the current vehicle enters the target road; predicting a target performance parameter of the current vehicle when the current vehicle runs on the target road at the target tire pressure; adjusting the tire pressure of the current vehicle to the target tire pressure in the case that the target performance parameter meets a standard.

[0006] In the embodiments of the present application, in the process of running of a vehicle, a target tire pressure of the current vehicle when the current vehicle runs on a target road ahead of the current vehicle before the current vehicle enters the target road is determined, and a target performance parameter of the current vehicle when the current vehicle runs on the target road at the target tire pressure is predicted, and the tire pressure of the current vehicle is adjusted to the target tire pressure in the case that the target performance parameter meets a standard. In this method, after the target tire pressure of the vehicle is determined, the tire pressure of the vehicle is adjusted according to the target tire pressure when the target performance parameter of the vehicle running at the target tire pressure indicates that the performance of the vehicle meets the requirements, so that the tire pressure of the vehicle is adjusted after verifying the reliability of the target tire pressure, which can adjust the tire pressure of the vehicle to the target tire pressure with high reliability before the vehicle enters the target road, and then the vehicle can have high performance, i.e. low power consumption, high grip and comfort, after entering the target road.

[0007] Optionally, the determining the target tire pressure of the current vehicle when driving on the target road section comprises: predicting a driving parameter of the driver on the target road section and predicting a state parameter of the current vehicle after driving into the target road section; and predicting the target tire pressure based on a road parameter of the target road section, the driving parameter and the state parameter by using a pre-trained tire pressure prediction model.

[0008] In the embodiments of the present application, the target tire pressure is predicted based on the driving parameter of the driver on the target road section, the state parameter of the vehicle after driving into the target road section and the road parameter of the target road section, so that the corresponding target tire pressure can be determined by comprehensively considering the state of the vehicle, the control of the driver on the vehicle and the road characteristics, and a more accurate target tire pressure can be obtained.

[0009] Optionally, the predicting the target performance parameter of the current vehicle when driving on the target road section with the target tire pressure comprises: constructing a digital road model of the target road section based on the road parameter; and driving a digital vehicle model of the current vehicle to simulate running in the digital road model with the target tire pressure based on the driving parameter and the state parameter, so as to obtain the target performance parameter of the digital vehicle model in the simulation running process.

[0010] In the embodiments of the present application, the digital vehicle model of the current vehicle is driven to simulate running in the digital road model (constructed based on the road parameter of the target road section) by using the driving parameter and the state parameter of the current vehicle on the target road section and the target tire pressure, and the target performance parameter in the simulation running process is taken as the target performance parameter, so that the target performance parameter which can accurately reflect the performance of the current vehicle when driving on the target road section can be obtained, and the target tire pressure can be more accurately evaluated according to the target performance parameter.

[0011] Optionally, the constructing the digital road model of the target road section based on the road parameter comprises: obtaining weather information of the target road section; and constructing the digital road model based on the road parameter and the weather information.

[0012] In the embodiments of the present application, the digital road model is constructed based on the weather information and the road parameter of the target road section, so that the similarity between the digital road model and the target road section can be improved, so that the target performance parameter obtained by simulation can be closer to the actual target performance parameter, and the target tire pressure can be more accurately evaluated according to the target performance parameter.

[0013] Optionally, the predicting the driving parameter of the driver on the target road section comprises: obtaining a road type of the target road section and a driving style of the driver; and predicting the driving parameter based on the road type and the driving style.

[0014] In the embodiments of the present application, the driving parameter of the vehicle when driving on the target road section is predicted based on the road type of the target road section and the driving style of the driver, and the driving parameter can be related to the road type of the target road section and the driving style of the driver, and is the same as or highly similar to the driving parameter when the vehicle actually drives on the target road section.

[0015] Optionally, the determining the target tire pressure of the current vehicle when driving on the target road section comprises: obtaining at least one historical tire pressure of a reference vehicle when driving on the target road section, the reference vehicle being of the same vehicle type as the current vehicle, each historical tire pressure corresponding to a historical performance parameter of the reference vehicle when driving on the target road section; and determining the target tire pressure corresponding to the historical performance parameter meeting the standard from the at least one historical tire pressure.

[0016] In the embodiments of the present application, the historical tire pressure corresponding to the historical performance parameter meeting the standard is selected as the target tire pressure from the historical tire pressure of the reference vehicle of the same type as the current vehicle, and the target tire pressure obtained is the actual target tire pressure, which can significantly improve the reliability of the target tire pressure.

[0017] Optionally, before the obtaining at least one historical tire pressure of a reference vehicle when driving on the target road section, the method further comprises: determining the load of the current vehicle and the driving style of the driver in the current vehicle; and determining the reference vehicle from a plurality of historical vehicles, the reference vehicle being of the same vehicle type as the current vehicle, the load of the reference vehicle being consistent with the load of the current vehicle, and the driving style of the driver in the reference vehicle being the same as the driving style of the driver in the current vehicle.

[0018] In the embodiments of the present application, the historical tire pressure corresponding to the historical performance parameter meeting the standard is selected as the target tire pressure from the historical tire pressure of the reference vehicle of the same type, consistent load and same driving style as the current vehicle, and the target tire pressure obtained is the actual target tire pressure, which greatly improves the reliability.

[0019] Optionally, the determining the target tire pressure of the current vehicle when driving on the target road section comprises: determining whether the current road section where the current vehicle is currently located is the same as the target road section; and if not, determining the target tire pressure.

[0020] In the embodiments of the present application, when the current road section where the current vehicle is located is not the same as the target road section, the target tire pressure is determined, the target performance parameter is predicted, and the tire pressure of the current vehicle is adjusted to the target tire pressure when the target performance parameter meets the standard, which can avoid meaningless tire pressure adjustment, thereby reducing the power consumption of the vehicle.

[0021] In a second aspect, a tire pressure adjustment device is provided, the device comprising: determining a target tire pressure for the current vehicle when driving on a target road section ahead of the current vehicle; predicting a target performance parameter of the current vehicle when driving on the target road section at the target tire pressure; adjusting the tire pressure of the current vehicle to the target tire pressure if the target performance parameter is up to standard.

[0022] In a third aspect, a vehicle is provided, and the vehicle comprises: a memory configured to store executable program code; a processor configured to invoke and run the executable program code from the memory, so that the vehicle performs the method in any possible implementation manner of the first aspect.

[0023] In a fourth aspect, a program product is provided, and the program product comprises executable program code, which, when run on a vehicle, causes the vehicle to perform the method in any possible implementation manner of the first aspect.

[0024] In a fifth aspect, a readable storage medium is provided, and the readable storage medium stores executable program code, which, when run on a vehicle, causes the vehicle to perform the method in any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a step flowchart of a tire pressure adjustment method provided by an embodiment of the present application; Figure 2 is a structural schematic diagram of a tire pressure adjustment device provided by an embodiment of the present application; Figure 3 is a structural schematic diagram of a vehicle provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the present application will be described clearly and exhaustively in combination with the drawings. In the description of the embodiments of the present application, unless otherwise specified, “ / ” represents or, for example, A / B can represent A or B: “and / or” in the text only represents a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, “multiple” means two or more than two.

[0027] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0028] The performance of a vehicle is related to the tire pressure. When the tire pressure matches the load of the vehicle and the road conditions, etc., the vehicle has high grip and high comfort, and the fuel consumption is also low. In order to reduce the power consumption of the vehicle and make the vehicle have high grip and comfort, one way is to determine the target tire pressure that matches the target road section before the vehicle enters the target road section, adjust the tire pressure of the vehicle to the target tire pressure, so as to improve the grip and comfort of the vehicle on the target road section after the vehicle enters the target road section, and reduce the power consumption of the vehicle.

[0029] However, there may be some deviation in the obtained road parameters in the process of determining the target tire pressure, and the state of the vehicle when entering the front road section will also change constantly, so the reliability of the target tire pressure is poor. After adjusting the tire pressure to the target tire pressure, not only the performance of the vehicle may not be improved, but also the performance of the vehicle may be reduced.

[0030] In order to solve the above technical problems, the embodiments of the present application provide a tire pressure adjustment method. In the method, after determining the target tire pressure of the vehicle on the target road section, the target performance parameter of the vehicle when driving on the target road section with the target tire pressure is predicted, and the reliability of the target tire pressure is evaluated by the target performance parameter. When the target performance parameter meets the standard, it is determined that the reliability of the target tire pressure is high, and the tire pressure of the vehicle is adjusted to the target tire pressure. In this way, the reliability of the target tire pressure can be improved, and the tire pressure of the vehicle can be adjusted to the target tire pressure with high reliability before the vehicle enters the target road section, so that the vehicle can have high performance after entering the target road section, i.e. low power consumption, high grip and comfort.

[0031] Among them, the method can be executed by a vehicle controller in the vehicle. The vehicle controller can determine the target tire pressure of the vehicle when driving on the target road section before the vehicle enters the target road section, predict the target performance parameter of the vehicle when driving on the target road section with the target tire pressure, and finally adjust the tire pressure of the vehicle to the target tire pressure when the target performance parameter meets the standard.

[0032] The method can also be executed by a server. During the driving process of the vehicle, the server can determine the target tire pressure of the vehicle when driving on the target road section before the vehicle enters the target road section, predict the target performance parameter of the vehicle when driving on the target road section with the target tire pressure, and finally send a tire pressure adjustment instruction to the vehicle to adjust the tire pressure of the vehicle to the target tire pressure when the target performance parameter meets the standard.

[0033] Referring to Figure 1 , Figure 1 is a step flowchart of a tire pressure adjusting method provided by an embodiment of the present application. The execution subject of the method can be a vehicle controller in a vehicle, and the method can include the following steps. Step 101, before the current vehicle enters a target road section in front, determining a target tire pressure of the current vehicle when driving on the target road section.

[0034] In an embodiment, the target road section can be a road section of a preset length in the driving direction of the current vehicle (i.e. in front), and the target road section is spaced apart from the current position of the current vehicle by a preset distance, for example 1 km, which supports the current vehicle to determine the target tire pressure and adjust the tire pressure of the tire to the target tire pressure. The preset length is, for example, 10 km. During the driving of the current vehicle, the vehicle controller can locate the current position of the current vehicle in real time, and according to the current position, determine the target tire pressure of the target road section located between a first position and a second position after the current vehicle drives at the current position, the first position is spaced apart from the current position by a preset distance, and the second position is located after the first position and spaced apart from the first position by a preset length.

[0035] In another embodiment, the target road section can be a road section of a target road section type, for example, a turning road section. In the process of determining the target tire pressure of the current vehicle when driving on the target road section, the vehicle controller can determine whether there is a turning road section in front of the current vehicle, and when there is a turning road section, predict the target tire pressure of the current vehicle on the turning road section. For example, during the driving of the vehicle, the vehicle controller can determine from the map data whether there is a turning road section in the road where the vehicle is currently located, and when there is one or more turning road sections, determine the target tire pressure of the turning road section when the distance between the current position of the current vehicle and the turning road section (i.e. the target road section) reaches a preset distance.

[0036] Alternatively, the road section of the target road section type can be an uphill road section. During the driving of the vehicle, the vehicle controller can determine from the map data whether there is an uphill road section in the road where the vehicle is currently located, and when there is one or more uphill road sections, determine the target tire pressure of the uphill road section when the distance between the current position of the current vehicle and the uphill road section (i.e. the target road section) reaches a preset distance.

[0037] In an embodiment, the vehicle controller can obtain the road parameters of the target road section before the current vehicle enters the target road section, and determine the current load of the current vehicle, and determine the target tire pressure according to the road parameters and the current load. For example, the road parameters can include a road type, which can be one of a paved road, an unpaved road, an icy road, and a slippery road.

[0038] When the target road section is a road section of the preset length in front of the current vehicle, the vehicle controller can locate the current position of the current vehicle in real time during the driving of the vehicle, and can obtain the road type of the target road section between the first position and the second position from the map data according to the current position, and can determine the current load of the current vehicle.

[0039] Exemplarily, the target tire pressure can be a tire pressure range. A plurality of load ranges can be preset, each of which corresponds to a plurality of tire pressure ranges, and the plurality of tire pressure ranges correspond to the plurality of road types one by one. After determining the road type of the target road section and the current load, the target load range in which the current load is located is first determined from the plurality of load ranges, and then the target tire pressure range corresponding to the road type of the target road section is determined from the plurality of tire pressure ranges corresponding to the target load range, and the target tire pressure range is taken as the target tire pressure.

[0040] In the formula, the plurality of tire pressure ranges corresponding to each load range represent the optimal tire pressure range corresponding to each road type when the load of the vehicle is in the load range and the vehicle drives on roads of different road types. The plurality of tire pressure ranges corresponding to each load range can be determined by experiment and stored in the vehicle controller in advance.

[0041] It can be understood that when the target road section is a road section of the target road section type, the vehicle controller can obtain the road parameters of the road section of the target road section type and determine the current load of the vehicle before the vehicle drives into the road section of the target road section type during the driving of the vehicle, and determine the target tire pressure of the vehicle on the road section of the target road section type according to the road parameters and the current load.

[0042] Optionally, the step of determining the target tire pressure of the current vehicle when driving on the target road section can include: predicting the control parameter of the driver on the current vehicle on the target road section, and predicting the state parameter of the current vehicle after driving into the target road section; predicting the target tire pressure based on the road parameters, the control parameter and the state parameter of the target road section through the pre-trained tire pressure prediction model.

[0043] In an embodiment, the tire pressure prediction model can be trained in advance and deployed in the vehicle controller. In the process of determining the target tire pressure, the vehicle controller can predict the control parameter of the driver on the current vehicle on the target road section, predict the state parameter of the current vehicle after driving into the target road section, and obtain the road parameters of the target road section, and then input the obtained road parameters, the predicted control parameter and the state parameter into the tire pressure prediction model to obtain the tire pressure range predicted and output by the tire pressure prediction model based on the road parameters, the control parameter and the state parameter, and the tire pressure range predicted and output by the tire pressure prediction model is the target tire pressure.

[0044] Exemplarily, the road parameters can include a curvature, a slope and a road surface friction coefficient of the target road section. After determining the target road section, the vehicle controller can obtain the curvature, the slope and the road surface friction coefficient of the target road section from the map data according to the positioning information of the target road section. Alternatively, the vehicle can obtain the road parameters from a roadside device through Vehicle-to-Everything (V2X) communication.

[0045] The state parameters of the vehicle can include a driving speed, a longitudinal acceleration, a current load and a lateral acceleration, and the vehicle controller can take the driving speed, the longitudinal acceleration, the current load and the lateral acceleration of the current vehicle as the driving speed, the longitudinal acceleration, the current load and the lateral acceleration of the current vehicle in the target road section.

[0046] The control parameters can include a steering angle change rate and an accelerator opening change rate. The vehicle controller can record the steering angle change rate and the accelerator opening change rate of the driver when driving the vehicle in different road types in advance. After determining the road type of the target road section, the steering angle change rate and the accelerator opening change rate corresponding to the road type of the target road section can be determined from the recorded steering angle change rate and the accelerator opening change rate, and the steering angle change rate and the accelerator opening change rate can be taken as the steering angle change rate and the accelerator opening change rate of the current vehicle when driving in the target road section.

[0047] After obtaining the road parameters, the control parameters and the state parameters, the vehicle controller can input the road parameters, the control parameters and the state parameters into the tire pressure prediction model to obtain the target tire pressure predicted and output by the tire pressure prediction model based on the road parameters, the control parameters and the state parameters.

[0048] It can be understood that the specific parameters included in the road parameters, the control parameters and the state parameters can include but are not limited to the above examples.

[0049] In actual application, in the process of training the tire pressure prediction model, the road parameters, the control parameters and the state parameters in the above examples can be included in each training sample, and the sample label of each training sample can be a tire pressure range capable of making the vehicle have high performance determined through experiments.

[0050] In the embodiments of the present application, the target tire pressure is predicted based on the control parameters of the driver on the target road section, the state parameters of the vehicle after entering the target road section and the road parameters of the target road section, the corresponding target tire pressure can be determined by comprehensively considering the state of the vehicle, the control of the driver on the vehicle and the road characteristics, and a more accurate target tire pressure can be obtained.

[0051] The above is only an example, and the method for determining the target tire pressure of the vehicle when driving in the target road section can include but is not limited to the above examples.

[0052] Step 102, predicting a target performance parameter of the current vehicle running on the target road section with the target tire pressure.

[0053] The target performance parameter is used to evaluate the performance of the current vehicle running on the target road section with the target tire pressure. When the target performance parameter meets the standard, it indicates that the performance of the current vehicle running on the target road section with the target tire pressure is high, and the target tire pressure is reliable. Conversely, when the target performance parameter does not meet the standard, it indicates that the performance of the current vehicle running on the target road section with the target tire pressure is low, and the reliability of the target tire pressure is low.

[0054] For example, the target performance parameter can include a slip ratio. When the slip ratio is within a target slip ratio range (e.g., 15-30%), it indicates that the longitudinal grip of the current vehicle is high. And / or, the target performance parameter can include a roll angle. When the roll angle is within a target roll angle range (e.g., 3-5 degrees), it indicates that the lateral grip of the current vehicle is high. And / or, the target performance parameter can include power consumption. When the power consumption is less than a power consumption threshold, it indicates that the power consumption of the current vehicle is low.

[0055] In an embodiment, a parameter prediction model can be pre-trained and deployed in the vehicle controller. The parameter prediction model is used to predict the target performance parameter of the vehicle running with the target tire pressure. For example, the input data of the parameter prediction model includes the current load of the current vehicle, the road surface friction coefficient of the target road section, the driving speed of the current vehicle on the target road section, and the target tire pressure. The output data of the parameter prediction model includes the slip ratio. After determining the target tire pressure, the vehicle controller can input the current load of the current vehicle, the friction coefficient of the target road section, the driving speed of the current vehicle on the target road section, and the target tire pressure into the parameter prediction model to obtain the slip ratio output by the parameter prediction model.

[0056] Optionally, step 102 can include: constructing a digital road model of the target road section based on the road parameters; driving the digital vehicle model of the current vehicle to simulate running on the digital road model with the target tire pressure based on the control parameters and the state parameters, to obtain the target performance parameter of the digital vehicle model during the simulation running.

[0057] In another embodiment, a digital vehicle model of the current vehicle and a digital road model of the target road section can be established using digital twin technology. During the determination of the target performance parameter, the vehicle controller can drive the digital vehicle model to simulate running on the digital road model with the target tire pressure, and obtain the performance parameter of the digital vehicle model during the simulation running as the target performance parameter.

[0058] Exemplarily, the road parameters can include a road type, a length, a curvature, a slope and a road surface friction coefficient of the target road section. A digital road model can be pre-deployed in the vehicle controller, and parameters of the digital road model can be adjustable. After the road type, the length, the curvature, the slope and the road surface friction coefficient of the target road section are obtained, the road type of the target road section (for example, a non-paved road) is configured to the digital road model, so that the road type of the digital road model is consistent with the road type of the target road section; the length of the target road section is configured to the digital road model, so that the length of the digital road model is consistent with the length of the target road section; the slope of the target road section is configured to the digital road model, so that the slope of the digital road model is consistent with the slope of the target road section; the curvature of the target road section is configured to the digital road model, so that the curvature of the digital road model is consistent with the curvature of the target road section; and the road surface friction coefficient of the target road section is configured to the digital road model, so that the road surface friction coefficient of the digital road model is consistent with the road surface friction coefficient of the target road section. In this way, the digital road model is matched with the target road section, and the target road section can be simulated.

[0059] The control parameters include a rate of change of a steering wheel angle and a rate of change of an accelerator pedal opening degree, and the state parameters include a driving speed, a longitudinal acceleration, a current load and a lateral acceleration. A digital vehicle model of the current vehicle can be pre-deployed in the vehicle controller, and parameters of the digital vehicle model can be adjustable. After the control parameters, the state parameters and the target tire pressure of the current vehicle on the target road section are obtained, the control parameters, the state parameters and the target tire pressure are configured to the digital vehicle model, so that the control parameters, the state parameters and the tire pressure of the digital vehicle model are consistent with the control parameters, the state parameters and the target tire pressure of the current vehicle on the target road section. In this way, the digital vehicle model is matched with the current vehicle, and the current vehicle can be simulated. Then, the digital vehicle model can be driven to simulate running in the digital road model, and the slip rate, the roll angle and / or the power consumption of the digital vehicle model during the simulation running are obtained, so as to obtain the target performance parameters.

[0060] In the embodiments of the present application, the digital vehicle model of the current vehicle is driven to simulate running in the digital road model (constructed by the road parameters of the target road section) by the control parameters, the state parameters and the target tire pressure of the current vehicle on the target road section, and the performance parameters during the simulation running are taken as the target performance parameters. The target performance parameters can accurately reflect the performance of the current vehicle when driving on the target road section, and the target tire pressure can be more accurately evaluated according to the target performance parameters.

[0061] It can be understood that the target performance parameters can include but are not limited to the slip rate and the roll angle in the above examples, and predicting the target performance parameters of the current vehicle when driving on the target road section with the target tire pressure can include but are not limited to the above examples.

[0062] Step 103, in the case that the target performance parameter is up to standard, adjusting the tire pressure of the current vehicle to the target tire pressure.

[0063] Wherein, the target performance parameter being up to standard means that the target performance parameter indicates that the related performance of the current vehicle meets the requirement.

[0064] In combination with the above examples, when the target performance parameter includes the slip ratio, it can be determined that the target performance parameter is up to standard when the predicted slip ratio is within the target slip ratio interval, and the longitudinal grip of the current vehicle meets the requirement, and at this time the tire pressure of the current vehicle can be adjusted to the tire pressure range corresponding to the target pressure adjustment. Conversely, when the predicted slip ratio is not within the target slip ratio interval, it is determined that the target performance parameter is not up to standard, and the longitudinal grip of the current vehicle does not meet the requirement, and at this time the tire pressure of the current vehicle is not adjusted.

[0065] Similarly, when the target performance parameter includes the roll angle, it can be determined that the target performance parameter is up to standard when the predicted roll angle is within the target roll angle interval, and the lateral grip of the current vehicle meets the requirement, and at this time the tire pressure of the current vehicle can be adjusted to the tire pressure range corresponding to the target pressure adjustment. Conversely, when the predicted roll angle is not within the target roll angle interval, it is determined that the target performance parameter is not up to standard, and the lateral grip of the current vehicle does not meet the requirement, and at this time the tire pressure of the current vehicle is not adjusted.

[0066] Similarly, when the target performance parameter includes both the slip ratio and the roll angle, it can be determined that the target performance parameter is up to standard when the predicted slip ratio is within the target slip ratio interval and the roll angle is within the target roll angle interval, and the lateral grip and longitudinal grip of the vehicle meet the requirement, and at this time the tire pressure of the current vehicle can be adjusted to the tire pressure range corresponding to the target pressure adjustment. Conversely, when the target performance parameter includes both the slip ratio and the roll angle, it can be determined that the target performance parameter is not up to standard when the predicted slip ratio is not within the target slip ratio interval and / or the roll angle is not within the target roll angle interval, and the lateral grip and / or longitudinal grip of the current vehicle does not meet the requirement, and at this time the tire pressure of the current vehicle is not adjusted.

[0067] Exemplarily, an automatic tire pressure adjusting device is integrated in a vehicle, the automatic tire pressure adjusting device comprises a vehicle-mounted air pump, an air tank and a gas filling and discharging valve, etc. One end of the vehicle-mounted air pump is connected with the air valve of the tire of the current vehicle through the gas filling and discharging valve, and the other end is connected with the air tank. When tire pressure adjustment is needed, when the current tire pressure of the tire is less than the lower limit value of the target tire pressure (tire pressure range), the gas filling and discharging valve is controlled to be opened, and the vehicle-mounted air pump is controlled to operate, so that the gas in the air tank is pumped into the tire, and the air pressure of the tire is raised to the tire pressure range corresponding to the target tire pressure. When the current tire pressure of the tire is greater than the upper limit value of the target tire pressure (tire pressure range), the gas filling and discharging valve is controlled to be opened to discharge the tire, so that the air pressure of the tire is lowered to the tire pressure range corresponding to the target tire pressure. The specific structure of the tire pressure adjusting device and the method of adjusting the tire pressure of the tire to the target tire pressure can include but are not limited to the above examples.

[0068] In the embodiment of the present application, during the driving of the vehicle, before the current vehicle enters the target road section in front, the target tire pressure of the current vehicle when driving on the target road section is determined, and the target performance parameter of the current vehicle when driving on the target road section at the target tire pressure is predicted. If the target performance parameter meets the requirements, the tire pressure of the current vehicle is adjusted to the target tire pressure. In this method, after the target tire pressure of the vehicle is determined, when the target performance parameter of the vehicle running at the target tire pressure indicates that the performance of the vehicle meets the requirements, the tire pressure of the vehicle is adjusted according to the target tire pressure. The tire pressure of the vehicle can be adjusted after verifying the reliability of the target tire pressure. In this way, the tire pressure of the vehicle can be adjusted to a target tire pressure with high reliability before the vehicle enters the target road section, and the vehicle can have high performance, i.e. low power consumption, high grip and comfort, after entering the target road section.

[0069] Optionally, based on the road parameters, a digital road model of the target road section is constructed, comprising: acquiring weather information of the target road section; constructing the digital road model based on the road parameters and the weather information.

[0070] In an embodiment, during the construction of the digital road model, weather information of the target road section can also be acquired, and the digital road model is constructed based on the road parameters and the weather information of the target road. Exemplarily, the weather information can include a weather type, which can be any one of rainy day, snowy day and sunny day. Different friction coefficient adjustment amounts can be set for different weather types. For example, the friction coefficient adjustment amounts corresponding to rainy day and snowy day can be set as negative values, and the absolute value of the friction coefficient adjustment amount corresponding to rainy day is less than the absolute value of the friction coefficient adjustment amount corresponding to snowy day. In addition, the friction coefficient adjustment amount corresponding to sunny day can be set as 0 or a positive value.

[0071] The road parameters can include a road type, a length, a curvature, a slope, and a road surface friction coefficient of the target road section, and in the process of constructing the digital road model, the road surface friction coefficient adjustment amount corresponding to the weather type can be summed up, the sum result is configured as the road surface friction coefficient of the digital road model, and the road type, the length, the curvature, and the slope of the target road section are respectively configured as the road type, the length, the curvature, and the slope of the digital road model, so that the digital road model is matched with the target road section, and the target road section can be simulated.

[0072] Optionally, the weather information can further include temperature and wind speed and other parameters that can affect vehicle performance, and the method of constructing the digital road model according to the weather information can include but is not limited to the above examples.

[0073] It should be noted that when the method is executed by the server, in the process of constructing the digital road model of the target road section, the server can obtain the weather information of the target road section from the platform providing the weather information according to the positioning information of the target road section, and obtain the road type of the target road section from the map data according to the positioning information of the target road section, and then construct the digital road model based on the road parameters and the weather information.

[0074] In the embodiments of the present application, the digital road model is constructed based on the weather information and the road parameters of the target road section, which can improve the similarity between the digital road model and the target road section, so that the simulated target performance parameter can be closer to the actual target performance parameter, and then the target tire pressure can be more accurately evaluated according to the target performance parameter.

[0075] Optionally, the predicted driving personnel's control parameter of the current vehicle on the target road section includes: obtaining the road type of the target road section and the driving style of the driving personnel; based on the road type and the driving style, the control parameter is predicted.

[0076] In an embodiment, in the process of predicting the driving personnel's control parameter of the current vehicle on the target road section, the road type of the target road section can be obtained, and the driving style of the driving personnel in the current vehicle is determined, and the control parameter is predicted based on the road type and the driving style.

[0077] Exemplarily, a plurality of driving styles can be preset, for example, including an economic type and a sports type, the driving personnel of the same driving style have similar or identical control parameters for similar road sections, and the driving personnel of different driving styles have large differences in control parameters for similar road sections. The server can count the control parameters (including the corner change rate and the opening change rate) of a large number of driving personnel when driving vehicles on roads of different road types, and for each road type, a plurality of groups of control parameters corresponding to a plurality of driving styles are determined according to all the counted control parameters, each group of control parameters including the corner change rate and the opening change rate of the driving personnel of the corresponding driving style when driving the vehicle on the road of the corresponding road type.

[0078] In the current vehicle use process, the vehicle controller can identify the identity of the driving personnel in the current vehicle, set a style label for the driving personnel according to the operation habit of the driving personnel, different style labels represent different driving styles, and record the identity and style label of the driver. In the process of predicting the control parameters of the current vehicle by the driving personnel on the target road section, the vehicle controller identifies the identity of the driving personnel in the current vehicle, and determines the corresponding style label according to the identified identity.

[0079] Then, the vehicle controller can send the style label of the driving personnel in the current vehicle and the road type of the target road section to the server. After receiving the style label and the road type of the target road section, the server first determines a plurality of groups of control parameters corresponding to the road type of the target road section from all the saved control parameters, then determines a group of control parameters corresponding to the driving style represented by the style label from the plurality of groups of control parameters, and sends the group of control parameters to the vehicle controller. In this way, the vehicle controller can obtain the control parameters of the driving personnel on the target road section.

[0080] In another embodiment, in the process of predicting the control parameters of the current vehicle by the driving personnel on the target road section, the road type of the target road section can be obtained, the driving style of the driving personnel in the current vehicle can be determined, and the vehicle type and load of the current vehicle can be determined. Based on the road type of the target road section, the driving style of the driving personnel in the current vehicle, the vehicle type and load of the current vehicle, the control parameters are determined.

[0081] In combination with the above examples, the server can determine a plurality of groups of control parameters according to the statistical analysis of all control parameters, and each group of control parameters corresponds to a road type, a driving style, a vehicle type, and a load. After determining the road type of the target road section, the driving style of the driver in the current vehicle, the vehicle type of the current vehicle, and the load, a group of control parameters corresponding to the road type of the target road section, the driving style of the driver in the current vehicle, the vehicle type of the current vehicle, and the load can be determined from the pre-stored plurality of groups of control parameters, and the group of control parameters is used as the control parameter of the driver for the current vehicle on the target road section.

[0082] It should be noted that when the method is performed by the server, the server can obtain the road type of the target road section and the driving style of the driver in the current vehicle from the vehicle controller, and then the road type and the driving style are used to determine a group of control parameters corresponding to the road type of the target road section and the driving style of the driver in the current vehicle from the pre-stored plurality of groups of control parameters, and the group of control parameters is sent to the vehicle controller.

[0083] It should be understood that the above is only an example, and the method of determining the control parameter according to the road type of the target road section and the driving style of the driver can include but is not limited to the above examples.

[0084] In the embodiments of the present application, the control parameter of the vehicle driving on the target road section is predicted based on the road type of the target road section and the driving style of the driver, and the control parameter can be related to the road type of the target road section and the driving style of the driver, and the control parameter is the same as or highly similar to the control parameter of the vehicle actually driving on the target road section.

[0085] Optionally, the target tire pressure of the current vehicle driving on the target road section is determined, including: At least one historical tire pressure of a reference vehicle driving on the target road section is obtained, the reference vehicle has the same vehicle type as the current vehicle, and each historical tire pressure corresponds to a historical performance parameter of the reference vehicle driving on the target road section; A target tire pressure corresponding to a historical performance parameter meeting the standard is determined from the at least one historical tire pressure.

[0086] In an embodiment, a historical tire pressure of another vehicle (i.e., a reference vehicle) having the same vehicle type as the current vehicle driving on the target road section can be obtained, and a target tire pressure corresponding to a performance parameter meeting the standard is determined from the obtained historical tire pressure.

[0087] Exemplarily, the target road section is a road section of a target road section type, for example, a turning road section. For each turning road section, a different vehicle (i.e., a reference vehicle) can upload, to a server, positioning information of the turning road section, a vehicle type of the reference vehicle, and a tire pressure and a performance parameter (e.g., a slip ratio) of the reference vehicle when the reference vehicle travels on the turning road section. The server indexes the positioning information of the turning road section and the vehicle type of the reference vehicle, and generates and stores a set of historical data including the tire pressure and the slip ratio of the reference vehicle when the reference vehicle travels on the turning road section, the stored tire pressure being a historical tire pressure, and the stored slip ratio being a historical performance parameter.

[0088] When determining the target tire pressure for the current vehicle, the vehicle controller can send the positioning information of the target road section and the vehicle type of the current vehicle to the server. After receiving the positioning information of the target road section and the vehicle type of the current vehicle, the server determines one or more sets of historical data corresponding to the target road section from the recorded at least one set of historical data according to the positioning information of the target road section and the vehicle type of the current vehicle, and then sends the determined one or each set of historical data to the vehicle controller. It can be understood that each set of historical data includes a historical tire pressure and a historical slip ratio of a reference vehicle of the same vehicle type as the current vehicle when the reference vehicle travels on the target road section.

[0089] Correspondingly, after receiving the one or more sets of historical data sent by the server, the vehicle controller determines a historical tire pressure in a set of historical data including a slip ratio in the target slip ratio interval from the received one or more sets of historical data, and takes the historical tire pressure as the target tire pressure.

[0090] It can be understood that when the method is performed by the server, in the process of determining the target tire pressure, the server can directly determine one or more sets of historical data corresponding to the target road section from all recorded data according to the positioning information of the target road section and the vehicle type of the current vehicle, and then determine a historical tire pressure in a set of historical data including a slip ratio in the target slip ratio interval from the determined one or more sets of historical data as the target tire pressure.

[0091] In the embodiments of the present application, the historical tire pressure corresponding to the historical performance parameter meeting the target is selected from the historical tire pressures of the reference vehicles of the same vehicle type as the current vehicle, and the obtained target tire pressure is the actual target tire pressure, which can significantly improve the reliability of the target tire pressure.

[0092] Optionally, before obtaining the at least one historical tire pressure of the reference vehicle when the reference vehicle travels on the target road section, the method can further include: determining a load of the current vehicle and a driving style of a driver in the current vehicle; determine a reference vehicle from a plurality of historical vehicles, the reference vehicle being of the same vehicle type as the current vehicle, the reference vehicle having a load consistent with the load of the current vehicle, and the reference vehicle having a driving style of a driver consistent with the driving style of the driver in the current vehicle.

[0093] In an embodiment, a historical tire pressure of another vehicle (i.e., a reference vehicle) of the same vehicle type as the current vehicle, of the same driving style as the driver in the current vehicle, and of a load close to the load of the current vehicle, can be obtained when the reference vehicle travels on the target road section. From the obtained historical tire pressure, a target tire pressure corresponding to a performance parameter meeting a standard can be determined.

[0094] Exemplarily, the target road section is a road section of a target road section type, such as a turning road section. For each turning road section, different vehicles (i.e., historical vehicles) can upload, to a server, positioning information of the turning road section, a vehicle type, a load of the vehicle, a driving style of a driver in the vehicle, and a tire pressure and a performance parameter (e.g., a slip ratio) of the vehicle when the vehicle travels on the turning road section. The server indexes the positioning information, the vehicle type, the load, and the driving style of the turning road section, and generates and stores a corresponding set of historical data including the tire pressure and the slip ratio of the historical vehicle when the historical vehicle travels on the turning road section. The stored tire pressure is a historical tire pressure, and the stored slip ratio is a historical performance parameter.

[0095] When determining the target tire pressure for the current vehicle, the vehicle controller can send, to the server, the positioning information of the target road section, the vehicle type, the load, and the driving style of the current vehicle. After receiving the positioning information, the vehicle type, the load, and the driving style, the server determines, from the recorded sets of historical data, one or more sets of historical data corresponding to the target road section according to the positioning information, the vehicle type, the load, and the driving style. Then, from the determined one or more sets of historical data corresponding to the target road section, the server determines one or more sets of historical data corresponding to the vehicle type of the current vehicle. Next, from the one or more sets of historical data corresponding to the vehicle type of the current vehicle, the server determines one or more sets of historical data corresponding to the driving style of the driver in the current vehicle. Then, from the one or more sets of historical data corresponding to the driving style of the driver in the current vehicle, the server determines one or more sets of historical data in which a difference between a corresponding load and the load of the current vehicle is less than a preset difference (i.e., consistent). Finally, the server sends the determined one or more sets of historical data to the vehicle controller.

[0096] Correspondingly, after receiving the one or more sets of historical data sent by the server, the vehicle controller determines, from the received one or more sets of historical data, a historical tire pressure in a set of historical data in which a slip ratio included is in a target slip ratio interval, and takes the historical tire pressure as the target tire pressure.

[0097] It can be understood that when the method is executed by the server, in the process of determining the target tire pressure, the server can directly determine one or more groups of historical data corresponding from all the recorded tire pressures according to the positioning information of the target road section, the vehicle type of the current vehicle, the load of the current vehicle and the driving style of the driver in the current vehicle, and then determine the historical tire pressure in the determined one or more groups of historical data as the target tire pressure, wherein the historical tire pressure is in the group of historical data in which the slip rate is in the target slip rate interval.

[0098] In the embodiments of the present application, the historical tire pressure corresponding to the historical performance parameter meeting the standard is selected as the target tire pressure from the historical tire pressure of the reference vehicle of the same type, the same load and the same driving style, and the obtained target tire pressure is the actually used target tire pressure, and the reliability is greatly improved.

[0099] Optionally, the target tire pressure of the current vehicle when driving on the target road section is determined, comprising: determining whether the current road section where the current vehicle is currently located is the same as the target road section; if not, determining the target tire pressure.

[0100] In an embodiment, before determining the target tire pressure of the current vehicle when driving on the target road section, it can be first determined whether the current road section where the current vehicle is currently located is the same as the target road section, the target tire pressure is determined when the current road section is not the same as the target road section, the target performance parameter is predicted, and the tire pressure of the current vehicle is adjusted to the target tire pressure when the target performance parameter meets the standard. Conversely, when the current road section is the same as the target road section, the target tire pressure is not determined, and the tire pressure adjustment is not performed.

[0101] Exemplarily, it can be compared whether the road section type of the current road section is the same as the road section type of the target road section. In combination with the above example, the target road section can be a turning road section. The vehicle control unit first determines whether the current road section where the current vehicle is currently located is a turning road section according to the positioning information of the current vehicle from the map data when it is determined that there is a turning road section in front of the current vehicle during the driving process of the current vehicle. If the current road section is a turning road section, it is determined that the current road section where the current vehicle is currently located is the same as the target road section, and the target tire pressure is not determined at this time, and the tire pressure adjustment is not performed. Conversely, when the current road section is not a turning road section, the target tire pressure is determined, the target performance parameter is predicted, and the tire pressure of the current vehicle is adjusted to the target tire pressure when the target performance parameter meets the standard.

[0102] In the embodiments of the present application, when the current road section where the current vehicle is located is not the same as the target road section, the target tire pressure is determined, the target performance parameter is predicted, and the tire pressure of the current vehicle is adjusted to the target tire pressure when the target performance parameter meets the standard, which can avoid meaningless tire pressure adjustment, thereby reducing the power consumption of the vehicle.

[0103] The above is described in combination withFigure 1 The tire pressure adjusting method provided by the embodiments of the present application is described in detail; the following will be combined with the Figure 2 and Figure 3 The device embodiments of the present application are described in detail. It should be understood that the device in the embodiments of the present application can execute the various methods of the foregoing embodiments of the present application, i.e., the specific working processes of the following various products can refer to the corresponding processes in the foregoing method embodiments.

[0104] Referring to Figure 2 , Figure 2 is a structural schematic diagram of a tire pressure adjusting device provided by the embodiments of the present application. As Figure 2 indicated, the tire pressure adjusting device 200 can include: a determination module 201, configured to determine a target tire pressure of a current vehicle when the current vehicle travels on a target road section in front of the current vehicle before the current vehicle enters the target road section; a prediction module 202, configured to predict a target performance parameter of the current vehicle when the current vehicle travels on the target road section at the target tire pressure; an adjusting module 203, configured to adjust a tire pressure of the current vehicle to the target tire pressure in a case where the target performance parameter meets a standard.

[0105] Optionally, the determination module 201 is specifically configured to predict a control parameter of a driver on the current vehicle on the target road section and predict a state parameter of the current vehicle after the current vehicle enters the target road section; and the target tire pressure is predicted by a pre-trained tire pressure prediction model based on a road parameter of the target road section, the control parameter and the state parameter.

[0106] Optionally, the prediction module 202 is specifically configured to construct a digital road model of the target road section based on the road parameter; and the digital vehicle model of the current vehicle is driven to simulate running in the digital road model at the target tire pressure by the control parameter and the state parameter, so as to obtain the target performance parameter of the digital vehicle model in the simulation running process.

[0107] Optionally, the prediction module 202 is specifically configured to obtain weather information of the target road section; and the digital road model is constructed based on the road parameter and the weather information.

[0108] Optionally, the prediction module 202 is specifically configured to obtain a road type of the target road section and a driving style of the driver; and the control parameter is predicted based on the road type and the driving style.

[0109] Optionally, the determining module 201 is specifically used to obtain at least one historical tire pressure of a reference vehicle when it is driving on the target road segment, wherein the reference vehicle is of the same type as the current vehicle, and each historical tire pressure corresponds to a historical performance parameter of the reference vehicle when it is driving on the target road segment; and to determine the target tire pressure from the at least one historical tire pressure that meets the historical performance parameter.

[0110] Optionally, the determining module 201 is further configured to determine the load of the current vehicle and the driving style of the driver in the current vehicle before obtaining at least one historical tire pressure of the reference vehicle when it was traveling on the target road segment; determine the reference vehicle from a plurality of historical vehicles, wherein the reference vehicle is the same type as the current vehicle, the load of the reference vehicle matches the load of the current vehicle, and the driving style of the driver in the reference vehicle is the same as the driving style of the driver in the current vehicle.

[0111] Optionally, the determining module 201 is specifically used to determine whether the current road segment where the current vehicle is currently located is the same as the target road segment; if not, then the target tire pressure is determined.

[0112] See Figure 3 , Figure 3 This is a structural schematic diagram of a vehicle provided in an embodiment of this application. For example... Figure 3 As shown, the vehicle 300 is, for example, a server, including: a memory 301 and a processor 302, wherein the memory 301 stores executable program code 3011, and the processor 302 is used to call and execute the executable program code 3011 to perform a tire pressure regulation method.

[0113] Furthermore, embodiments of this application also protect a vehicle that may include a memory and a processor, wherein the memory stores executable program code, and the processor is used to call and execute the executable program code to perform a tire pressure regulation method provided in embodiments of this application.

[0114] This embodiment can divide the device into functional modules according to the above method example. For example, each module can correspond to a separate functional module, or two or more functions can be integrated into one output module. The integrated module can be implemented in hardware. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0115] When the functional modules are divided according to their respective functions, the device may also include a determining module, a replacing module, and a controlling module. It should be noted that all relevant content regarding the steps involved in the above method embodiments can be referenced to the functional descriptions of the corresponding functional modules, and will not be repeated here.

[0116] It should be understood that the device provided by the embodiment is used to execute the tire pressure adjusting method described above, and thus the same effects as the implementation method described above can be achieved.

[0117] In the case of using the integrated unit, the device can include a determining module and a control module. When the device is applied to a vehicle, the output module can be used to control and manage the action of the vehicle. The storage module can be used to support the vehicle to execute the related program code and the like.

[0118] The output module can be a processor or a vehicle body setting module, which can realize or execute various exemplary logical blocks, modules and circuits shown in combination with the disclosure of the present application. The processor can also be a combination of computing functions, such as including one or more microprocessor combinations, a combination of digital signal processing (digital signal processing, DSP) and microprocessor, and the like, and the storage module can be a memory.

[0119] The embodiment also provides a readable storage medium, which stores executable program code, when the executable program code is executed on a vehicle, the vehicle executes the related method steps described above to realize the tire pressure adjusting method provided by the embodiment.

[0120] The embodiment also provides a program product, when the program product is executed on a vehicle, the vehicle executes the related steps described above to realize the tire pressure adjusting method provided by the embodiment.

[0121] The device, readable storage medium, program product or chip provided by the embodiment are used to execute the corresponding method provided above, and thus the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method provided above, which will not be described here.

[0122] Through the description of the above embodiments, those skilled in the art can understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0123] In the embodiments of the present disclosure, it should be understood that the disclosed apparatus and method can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, and the division of the modules or units is merely a logical function division. In actual implementation, another division manner can be adopted, for example, a plurality of units or components can be combined or integrated into another apparatus, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, apparatuses or units, and can be electrical, mechanical or in other forms.

[0124] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A tire pressure regulation method, characterized in that, The method includes: Before the current vehicle enters the target road segment ahead, determine the target tire pressure of the current vehicle when it is traveling on the target road segment; Predict the target performance parameters of the current vehicle when it is traveling on the target road segment with the target tire pressure; If the target performance parameters are met, the tire pressure of the current vehicle is adjusted to the target tire pressure.

2. The method as described in claim 1, characterized in that, Determining the target tire pressure for the current vehicle while it is traveling on the target road segment includes: Predict the driver's control parameters for the current vehicle on the target road segment, and predict the state parameters of the current vehicle after entering the target road segment; The target tire pressure is predicted by a pre-trained tire pressure prediction model based on the road parameters, the control parameters, and the state parameters of the target road segment.

3. The method as described in claim 2, characterized in that, The predicted target performance parameters for the current vehicle when traveling on the target road segment at the target tire pressure include: Based on the road parameters, a digital road model of the target road segment is constructed; Using the control parameters and the state parameters, the digital vehicle model of the current vehicle is driven to simulate operation in the digital road model at the target tire pressure, so as to obtain the target performance parameters of the digital vehicle model during the simulation operation.

4. The method as described in claim 3, characterized in that, The process of constructing a digital road model for the target road segment based on the road parameters includes: Obtain weather information for the target road segment; The digital road model is constructed based on the road parameters and the weather information.

5. The method as described in claim 2, characterized in that, The predicted driver's control parameters for the current vehicle on the target road segment include: Obtain the road type of the target road segment and the driving style of the driver; The control parameters are predicted based on the road type and the driving style.

6. The method as described in claim 1, characterized in that, Determining the target tire pressure for the current vehicle while it is traveling on the target road segment includes: At least one historical tire pressure of a reference vehicle while driving on the target road segment is obtained. The reference vehicle is of the same type as the current vehicle. Each historical tire pressure corresponds to a historical performance parameter of the reference vehicle while driving on the target road segment. The target tire pressure for which the corresponding historical performance parameters are met is determined from the at least one historical tire pressure.

7. The method as described in claim 6, characterized in that, Prior to obtaining at least one historical tire pressure of the reference vehicle while it was traveling on the target road segment, the method further includes: Determine the load of the current vehicle and the driving style of the driver in the current vehicle; The reference vehicle is determined from a plurality of historical vehicles, wherein the reference vehicle is of the same type as the current vehicle, the load of the reference vehicle matches the load of the current vehicle, and the driving style of the driver in the reference vehicle is the same as that of the driver in the current vehicle.

8. The method according to any one of claims 1-7, characterized in that, Determining the target tire pressure for the current vehicle while it is traveling on the target road segment includes: Determine whether the current road segment where the current vehicle is located is the same as the target road segment; If not, then determine the target tire pressure.

9. A readable storage medium, characterized in that, The readable storage medium stores executable program code that, when run on a vehicle, causes the vehicle to perform the method as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, The vehicles include: Memory, used to store executable program code; A processor for calling and running the executable program code from the memory, causing the vehicle to perform the method as described in any one of claims 1 to 8.

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