Control method of vehicle, electronic device, and vehicle

Abstract

The application relates to the technical field of intelligent vehicles, and provides a control method of a vehicle, an electronic device and the vehicle, wherein the method comprises the following steps: acquiring positioning data and dynamic disturbance data of a current vehicle; determining a road surface type of a current road section where the current vehicle is located according to the positioning data; determining a road surface state of the current road section according to the dynamic disturbance data; and controlling the current vehicle to adjust a target parameter of a driving function according to the road surface type and the road surface state. The technical scheme of the embodiment of the application can ensure that the vehicle adjusts the driving function adaptively when facing different road conditions, provides a stable and comfortable driving state for a user, and thus improves the driving experience of the user.

Description

Technical Field

[0001] The present application relates to the field of smart vehicle technology, and in particular to a vehicle control method, electronic equipment, and vehicle. Background Art

[0002] With the development of urbanization and industrialization, transportation has become increasingly developed, and more and more users are choosing to buy cars to solve their travel problems. With the rapid development of the automobile industry, the comfort and stability of vehicle driving have become important indicators that consumers are increasingly concerned about.

[0003] Technological iterations have continuously improved the intelligence level of vehicles. How to adaptively adjust the driving state of the vehicle to ensure the comfort and stability of the vehicle has become one of the research focuses of technicians in related fields. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a vehicle control method, electronic equipment and vehicle to solve the problem that the vehicle cannot adaptively adjust its driving performance to cope with different road conditions.

[0005] Based on the above objectives, the present application provides a vehicle control method, the method comprising:

[0006] Obtain the current vehicle's positioning data and dynamic disturbance data;

[0007] Determine the road surface type of the current road section where the vehicle is currently located based on the positioning data;

[0008] Determine the road surface status of the current road section based on dynamic disturbance data;

[0009] According to the road surface type and road conditions, the target parameters of the current vehicle driving function are controlled and adjusted.

[0010] Based on the positioning data obtained by the current vehicle, the road surface type of the road section where the vehicle is located is determined. The specific construction material of the current road section can be accurately determined based on the current location of the vehicle, providing the vehicle with an accurate reference to the road surface type, so that the vehicle can adaptively adjust the different driving functions of the vehicle with reference to different road surface types, thereby improving the accuracy and rationality of the vehicle's driving function control; based on various types of dynamic disturbance data detected by the current vehicle, the road surface state of the road section where the vehicle is located is determined. The road surface state of the current road section can be obtained from multi-dimensional and multi-faceted data analysis, providing the vehicle with an accurate reference to the road surface state, which also enables the vehicle to adaptively adjust different driving functions according to different road surface states, and also improve the accuracy and rationality of the vehicle's driving function control; adjusting the target parameters of the vehicle's driving function based on the road surface type and road surface state can ensure that the vehicle adaptively adjusts the driving function when facing different road conditions, providing users with a stable and comfortable driving state, thereby improving the user's driving experience.

[0011] Based on the above invention, determining the road surface condition of the current road section based on the dynamic disturbance data may include:

[0012] Determine the road surface characteristic information of the current road section based on the dynamic disturbance data;

[0013] According to the road surface characteristic information, the road surface condition of the current road section is queried and determined in a pre-built database of the association between road surface characteristic information and road surface condition.

[0014] In the above-mentioned embodiment, the road surface characteristic information of the current road section is determined based on the dynamic disturbance data, which can help the vehicle and the user determine the specific characteristics of the road surface from the perspective of the influence of the vehicle on the road surface, and provide a basis for the subsequent judgment of the road surface state; then, the road surface state corresponding to the road surface characteristics is searched based on the associated database, so that the precise state of the current road section can be determined based on the experience of big data, which provides a basis for the subsequent adaptive control of the vehicle's driving function, helps to improve the vehicle's road adaptability, and thus helps to improve the user's driving experience.

[0015] Furthermore, the dynamic disturbance data includes acceleration data, deceleration data, suspension displacement data or vehicle body vibration data;

[0016] Determine the road surface characteristics of the current road section based on the dynamic disturbance data, which may include:

[0017] Calculate the weighted RMS value of the current vehicle's acceleration based on the acceleration data;

[0018] Determine the friction coefficient of the current road section based on the deceleration data;

[0019] Determine the bumpiness index of the current road section based on the peak value and peak frequency of the suspension displacement data;

[0020] Determine the vibration index of the current vehicle based on the vehicle body vibration data;

[0021] The weighted root mean square value of acceleration, friction coefficient, bumpiness index and vibration index are used as road surface characteristic information.

[0022] In the above embodiment, the road surface characteristic information is calculated from four aspects, namely acceleration data, deceleration data, suspension displacement data or vehicle body vibration data. The obtained four aspects of road surface characteristic information, namely weighted acceleration root mean square value, friction coefficient, bumpiness index and vibration index, can reflect the impact of the road surface on the vehicle from different angles, and help the vehicle to accurately identify the flatness and degree of damage of the road surface in the current section, which also provides a basis for subsequent control of the vehicle to adjust the driving function, and helps to improve the accuracy of the driving function adjustment.

[0023] On the other hand, the driving function includes suspension control; and controlling the current vehicle to adjust target parameters of the driving function according to the road surface condition may include:

[0024] In response to the road surface state being flat, adjusting target parameters of the suspension spring and the shock absorber so that the suspension stiffness meets a first stiffness threshold, or the suspension damping meets a first damping threshold, or the suspension travel meets a first travel threshold;

[0025] In response to the road surface state being a pothole, adjusting target parameters of a suspension spring and a shock absorber so that the suspension stiffness meets a second stiffness threshold, or the suspension damping meets a second damping threshold, or the suspension travel meets a second travel threshold;

[0026] Among them, the first stiffness threshold is greater than the second stiffness threshold; the first damping threshold is less than the second damping threshold; and the first stroke threshold is less than the second stroke threshold.

[0027] In the above-mentioned embodiment, the suspension springs and shock absorbers of the vehicle are adjusted respectively according to different road conditions so that the stiffness, damping and stroke of the suspension are adapted to the road conditions, thereby providing a practical solution for suspension adjustment under different road conditions. Flexible suspension adjustment for different road conditions can further improve the adaptability of the vehicle to different road conditions, improve the stability, safety and comfort of the vehicle, and at the same time enhance the user's driving experience.

[0028] On the other hand, the driving function includes tire pressure control; and controlling the current vehicle to adjust the target parameters of the driving function according to the road type may include:

[0029] in response to the road surface type being a hard road surface, adjusting the tire pressure of the current vehicle to a hard road surface tire pressure value;

[0030] in response to the road surface type being a soft road surface, adjusting the tire pressure to a soft road surface tire pressure value; the soft road surface tire pressure value is less than the hard road surface tire pressure value.

[0031] In the above embodiment, a feasible solution is provided for adjusting the tire pressure according to different road surface types. According to the difference between the hard and soft road surface types, the tire pressure of the vehicle is adjusted to the hard road surface tire pressure value or the soft road surface tire pressure value corresponding to the road surface type, so that the tire of the current vehicle can be timely adapted to different road surface types, and the stability of the vehicle in different road surfaces and the comfort of the user in driving can be ensured.

[0032] According to another aspect provided in the present application, the method can further include:

[0033] obtaining temperature and humidity data of the environment where the current vehicle is located;

[0034] in response to the temperature and humidity data meeting a preset dry condition, adjusting a target parameter of tire inflation and deflation to make the tire pressure of the current vehicle meet a first tire pressure threshold value;

[0035] in response to the temperature and humidity data meeting a preset high temperature condition and / or a preset wet condition, adjusting the target parameter of tire inflation and deflation to make the tire pressure of the current vehicle meet a second tire pressure threshold value;

[0036] in response to the temperature and humidity data meeting a preset low temperature condition, adjusting the target parameter of tire inflation and deflation to make the tire pressure of the current vehicle meet a third tire pressure threshold value;

[0037] wherein the first tire pressure threshold value is greater than the third tire pressure threshold value, and the third tire pressure threshold value is greater than the second tire pressure threshold value.

[0038] In the above embodiment, a feasible solution is provided for adjusting the tire pressure according to the temperature and humidity conditions. According to different temperature and humidity weather and road surface conditions, the tire pressure is adjusted to different threshold values, so as to better adapt to the changes of temperature and humidity, ensure the grip and friction of the vehicle and the road surface, and ensure the safety of the vehicle driving.

[0039] In another aspect, the driving function includes noise reduction control.

[0040] The control of the target parameter of the driving function of the current vehicle according to the road surface type can include:

[0041] in response to the road surface type being a hard road surface, increasing the power of the anti-phase sound wave of the middle-high frequency noise;

[0042] In response to the road surface type being a soft road surface, the power of the anti-phase sound wave of the low-frequency noise is increased.

[0043] The above-mentioned implementation method provides a practical active noise reduction control method for the embodiment of the present application. According to different road surface types, noises of different frequencies are correspondingly offset and neutralized, thereby achieving a noise reduction effect. It can enable the vehicle to provide users with a relatively quiet driving environment at all times and enhance the user's driving experience.

[0044] Based on the above invention, after controlling the target parameter of the current vehicle adjustment driving function according to the road surface type and the road surface state, the method may further include:

[0045] In response to a user's driving function adjustment operation, controlling the current vehicle to change a target parameter of the driving function, associating the changed target parameter with the current road section, and saving the association relationship;

[0046] In response to the current vehicle entering the current road section again, the modified target parameter is called to adjust the driving function according to the association relationship.

[0047] In the above-mentioned embodiment, a method is provided for users to manually adjust the driving functions in the vehicle and save personalized settings, which can provide users with driving functions that meet their personal needs and ensure that users can control these driving functions according to their wishes to achieve a state that best meets the user's personal needs and enhance the user's driving experience.

[0048] Based on the same purpose of the above method, the present application also provides a vehicle control device, the device comprising:

[0049] Vehicle data acquisition module, used to obtain the current vehicle's positioning data and dynamic disturbance data;

[0050] A road surface type determination module is used to determine the road surface type of the current road section where the vehicle is currently located based on the positioning data;

[0051] A road surface state determination module is used to determine the road surface state of the current road section based on dynamic disturbance data;

[0052] The driving function adjustment module is used to control the target parameters of the current vehicle's driving function according to the road type and road condition.

[0053] Based on the same purpose, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor, wherein when the processor executes the program, the method provided in any embodiment of the present application is implemented.

[0054] Based on the same purpose, the present application also provides a vehicle, comprising:

[0055] a memory for storing executable program code;

[0056] A processor is used to call and run the executable program code from the memory, so that the vehicle executes the method provided in any embodiment of the present application.

[0057] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method provided in any embodiment of the present application when executed.

[0058] As can be seen from the above, in the technical solution of the embodiment of the present application, the road surface type of the road section where the vehicle is located is determined based on the positioning data obtained by the current vehicle, and the specific construction material of the current road section can be accurately determined based on the current location of the vehicle, providing the vehicle with an accurate reference to the road surface type, so that the vehicle can adaptively adjust the different driving functions of the vehicle with reference to different road surface types, thereby improving the accuracy and rationality of the vehicle driving function control; based on various types of dynamic disturbance data detected by the current vehicle, the road surface state of the road section where the vehicle is located is determined, and the road surface state of the current road section can be obtained from multi-dimensional and multi-faceted data analysis, providing the vehicle with an accurate reference to the road surface state, which enables the vehicle to adaptively adjust different driving functions according to different road surface states, and also improve the accuracy and rationality of the vehicle driving function control; adjusting the target parameters of the vehicle driving function based on the road surface type and road surface state can ensure that the vehicle adaptively adjusts the driving function when facing different road conditions, providing users with a stable and comfortable driving state, thereby improving the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0060] Figure 1 A flow chart of a vehicle control method provided in an embodiment of the present application;

[0061] Figure 2 A schematic diagram of the vehicle suspension, tire pressure, and noise reduction function control logic provided in an embodiment of the present application;

[0062] Figure 3 A schematic structural diagram of a vehicle control device provided in an embodiment of the present application;

[0063] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0064] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0065] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0066] Before explaining the embodiments and implementation methods of the present application, the background technology and technical problems to be solved of the present application will be explained. With the rapid development of the automobile industry, the comfort and quietness of vehicle driving have become important indicators that consumers are increasingly concerned about. Although most high-end cars in the current market are equipped with suspension systems, tire pressure adjustment systems and active noise cancellation systems (ANC, Active Noise Cancellation), these systems cannot be adjusted accordingly according to the road conditions on which the user is driving in real time. This results in the noise control effect and ride comfort of the vehicle being limited under different road conditions. In order to enable the vehicle to be adaptively adjusted under different road types and road conditions, the embodiments and implementation methods of the present application are proposed as follows.

[0067] Figure 1 The present invention provides a vehicle control method, which can be used to adaptively adjust the driving function of the vehicle to adapt to different road conditions. The vehicle control method provided by the present invention can be executed by the vehicle control device, which can be integrated into electronic equipment through hardware and / or software, such as integrated into the vehicle controller. Figure 1 , the method provided in the embodiment of the present application includes the following steps:

[0068] S110, acquire positioning data and dynamic disturbance data of the current vehicle.

[0069] The current vehicle can be any vehicle used by a user, and embodiments and implementations of the present application do not limit the power type and appearance of the current vehicle. The positioning data can be the position information of the current vehicle itself, such as latitude and longitude data, which can be acquired by satellite positioning technologies such as GPS (Global Positioning System) or Beidou. The dynamic disturbance data can be continuous data that affects driving stability, comfort, and quietness during the driving of the current vehicle, such as bumps and noises caused by road feedback. These dynamic disturbance data can be obtained by real-time detection through sensors of various dimensions or types provided in the vehicle.

[0070] S120, determine the road surface type of the current road section where the current vehicle is located according to the positioning data.

[0071] The current road section can be a road section where the current vehicle is currently driving, and the road surface type of the current road section can be different due to different materials used in the construction of the current road section or different purposes of the road section. For example, the road surface type can be mainly divided into hard road surface and soft road surface, and the hard road surface can include asphalt road and cement road, and the soft road surface can include gravel road and dirt road.

[0072] Specifically, the positioning data can determine the geographical location of the current vehicle. Generally, the positioning data can determine where the current vehicle is located, such as whether the current vehicle is on a highway, a village road, or an unconstructed road section. According to the purpose of these road sections, the vehicle can be indirectly determined to be driving on a road section of what material. For example, the positioning data acquired by the current vehicle is located on a national road, and it is determined that the road surface type of the road section is asphalt road. The positioning data acquired by the current vehicle is located on an unconstructed road section of a construction site, and it is determined that the road surface type of the road section is gravel road or dirt road. Of course, the positioning data can also be searched in a pre-set road surface type database to match the corresponding road surface type. The road surface type database can be composed of professional road surface detection agencies and / or road test data of vehicle manufacturers, as well as driving data collected from a large number of operating or non-operating vehicles through crowdsourcing, and embodiments of the present application do not limit this.

[0073] S130, determine the road surface state of the current road section according to the dynamic disturbance data.

[0074] Among them, the road surface state can be the surface topographic features of the current road section on which the current vehicle is traveling, such as whether the road surface is flat or bumpy. It can be understood that since the dynamic disturbance data is various types of data reflecting road surface feedback detected by the current vehicle when traveling on the current road section, the dynamic disturbance data characterizes the road surface state of the current road section to a certain extent. By analyzing the dynamic disturbance data obtained by sensors of various types in various dimensions, it is possible to analyze whether the road surface state is relatively flat or has potholes, and the degree of the potholes. For example, a machine learning model can be trained in advance based on a large amount of vehicle driving data. The model inputs various dynamic disturbance data detected by the current vehicle, and the model outputs the road surface state corresponding to the current road section.

[0075] S140: Control the current vehicle to adjust target parameters of driving functions according to the road type and road condition.

[0076] The driving function can be any controllable vehicle function that assists driving, including, but not limited to, suspension adjustment, tire pressure adjustment, and noise reduction control. Accordingly, the target parameter of the driving function is used to adjust the degree of use of the driving function.

[0077] Specifically, the target parameters of the vehicle's driving functions can be adjusted accordingly based on the road surface type and condition determined in the aforementioned steps, so that the vehicle can adapt to the road surface type and condition of the current road section, thereby ensuring the user's driving experience. For example, if the current road section is bumpy and has many potholes, the vehicle's suspension and tire pressure can be adjusted accordingly to adapt the vehicle to the current road conditions and provide a comfortable ride for the user.

[0078] In the technical solution of the embodiment of the present application, the road surface type of the road section where the vehicle is located is determined based on the positioning data obtained by the current vehicle. The specific construction material of the current road section can be accurately determined based on the current location of the vehicle, providing the vehicle with an accurate reference to the road surface type, so that the vehicle can adaptively adjust different driving functions of the vehicle with reference to different road surface types, thereby improving the accuracy and rationality of the vehicle driving function control; the road surface state of the road section where the vehicle is located is determined based on various dynamic disturbance data detected by the current vehicle, and the road surface state of the current road section can be obtained from multi-dimensional and multi-faceted data analysis, providing the vehicle with an accurate reference to the road surface state, which enables the vehicle to adaptively adjust different driving functions according to different road surface states, and also improve the accuracy and rationality of the vehicle driving function control; adjusting the target parameters of the vehicle driving function based on the road surface type and road surface state can ensure that the vehicle adaptively adjusts the driving function when facing different road conditions, providing users with a stable and comfortable driving state, thereby improving the user's driving experience.

[0079] In the foregoing embodiments, the dynamic disturbance data inevitably affects the driving stability, comfort and quietness of the vehicle during driving. To solve this problem, the road surface state can be identified based on the dynamic disturbance data, and the driving function of the vehicle can be adjusted according to the road surface state. Therefore, in an optional embodiment, the determination of the road surface state of the current road section according to the dynamic disturbance data in S130 can include:

[0080] S131, determining road surface feature information of the current road section according to the dynamic disturbance data.

[0081] The road surface feature information can be used to represent the ups and downs, potholes and other conditions of the road surface in the current road section. The road surface feature information can be different according to different dimensions and different aspects of the dynamic disturbance data, that is, the road surface feature information and the dynamic disturbance data are corresponding. For example, the vehicle is affected by the road potholes, causing the suspension of the vehicle to displace, and the displacement data detected by the suspension displacement sensor arranged in the vehicle is one kind of dynamic disturbance data. The road surface feature information corresponding to the displacement data can correspond to the road surface bump index, and the road surface feature information can reflect the flatness of the road surface.

[0082] S132, according to the road surface feature information, querying and determining the road surface state of the current road section in the pre-constructed road surface feature information and road surface state association database.

[0083] The road surface feature information and road surface state association database can be constructed by relevant technical personnel according to the road surface detection mechanism and / or road surface test data of the vehicle manufacturer, and by collecting driving data from a large number of operating or non-operating vehicles in a crowd-sourcing manner. The association database stores the association relationship between various road surface features and corresponding road surface states. By determining the road surface feature information in the foregoing steps, the corresponding road surface state of the current road section can be determined by searching in the association database.

[0084] In the foregoing embodiments, the determination of the road surface feature information of the current road section according to the dynamic disturbance data can help the vehicle and the user to determine the specific features of the road surface from the perspective of the influence of the vehicle on the road surface, and provide a basis for subsequent judgment of the road surface state. Then, the road surface state corresponding to the road surface feature can be found based on the association database, so as to determine the accurate state of the current road section relying on the experience of big data, and provide a basis for the adaptive control of the driving function of the vehicle, which is helpful to improve the road surface adaptability of the vehicle and improve the driving experience of the user.

[0085] The dynamic disturbance data includes multi-aspect and multi-dimension data, and different dimension information can be obtained from the dynamic disturbance data to determine the road surface characteristic information of the current road section. In an optional embodiment, the dynamic disturbance data includes acceleration data, deceleration data, suspension displacement data or vehicle body vibration data. In S131, the road surface characteristic information of the current road section is determined according to the dynamic disturbance data, which can include:

[0086] S1311, calculating a weighted acceleration root mean square value of the current vehicle according to the acceleration data.

[0087] The acceleration data can be collected by the acceleration sensor of the current vehicle, and the acceleration data is not the acceleration of the vehicle in driving, but the information of the acceleration in any direction generated by the vehicle in driving due to the influence of the road surface. The acceleration sensor can be selected from piezoelectric, piezoresistive, capacitive and servo type acceleration sensors, which are used to detect the acceleration data in any direction generated by the vehicle due to the influence of the road surface. The acceleration sensor can be installed at a position with high vehicle structure stiffness to reduce the loss in the transmission process due to the influence of the road surface, so as to accurately perceive the influence of the road surface on the vehicle. For example, the acceleration sensor can be installed at a position such as the vehicle chassis, the wheel hub and the housing of the transmission mechanism, and the embodiments of the application are not exhaustive. Based on the acceleration data collected by the acceleration sensor, the weighted acceleration root mean square value of the current vehicle changed due to the influence of the road surface is calculated. The time history of the acceleration data of the vehicle affected by the road surface recorded by the acceleration sensor is analyzed in the frequency domain (such as fast Fourier transform), and the power spectral density function of the acceleration is obtained. The power spectral density function is multiplied by the predetermined frequency weighting function to obtain the weighted power spectral density function, and the function is integrated and square rooted to obtain the weighted acceleration root mean square value. The weighted acceleration root mean square value is an important vibration evaluation index, which directly reflects the intensity of the vehicle vibration, and the frequency weighting can also obtain a comprehensive index considering both the vibration size and the human sensitivity. Therefore, the weighted acceleration root mean square value can represent the influence of the acceleration in all directions of the vehicle affected by the road surface on the user to a certain extent.

[0088] S1312, determining the friction coefficient of the current road section according to the deceleration data.

[0089] The deceleration data can be data collected by a deceleration sensor of the current vehicle, and the deceleration data is deceleration information of the vehicle when braking on the road surface on which the current vehicle is currently driving. Based on the deceleration data, the friction coefficient of the road surface of the current section can be calculated. The calculation method of the friction coefficient can be a rough calculation based on physical laws, or a refined calculation through a pre-trained friction coefficient model, regardless of which calculation method is used, the deceleration data is needed as the basis. For example, the vertical load of the vehicle is calculated by the mass of the vehicle and the acceleration of gravity, and the product of the mass of the vehicle and the deceleration is divided by the product of the acceleration of gravity and the vertical load to obtain the friction coefficient of the road surface.

[0090] S1313, determine the jolt index of the current section according to the peak value of the suspension displacement data and the peak value occurrence frequency.

[0091] The suspension displacement data can be data detected by a suspension displacement sensor of the current vehicle. When the suspension of the vehicle is stretched and contracted due to the ups and downs or potholes of the road surface, the suspension displacement sensor records the up and down displacement information of the vehicle suspension. Since the suspension displacement data can be recorded in real time, the data can effectively reflect the jolt situation of the road surface of the current section. The peak value of the suspension displacement data can represent the situation of the road surface encountered by the vehicle, and the high peak value occurrence frequency indicates that the road surface ups and downs or pothole phenomenon is more serious, and vice versa. Based on the peak value and the peak value occurrence frequency of the suspension displacement data, the jolt index of the current section is calculated. For example, the peak value and the peak value occurrence frequency of the displacement data can be analyzed in time domain and / or frequency domain, so as to convert these data into parameters that can be used to evaluate the jolt degree. For example, the peak value and the peak value occurrence frequency of the suspension displacement data are analyzed in frequency domain based on frequency spectrum, and the distribution of the peak value occurrence frequency is indirectly understood, for example, the time domain signal is converted into frequency domain signal by Fourier transform, and the frequency components corresponding to larger amplitudes in the frequency spectrum diagram are obtained to represent the distribution of the peak value occurrence frequency. Different peak values and peak value occurrence frequencies can correspond to different jolt degrees, and different jolt degrees can correspond to different quantized jolt indexes.

[0092] S1314, determine the vibration index of the current vehicle according to the vehicle body vibration data.

[0093] The vehicle body vibration data can be data detected by a vibration sensor arranged in the current vehicle, and is used to represent the vibration condition of the vehicle during driving. It can be understood that even if the vehicle has a good suspension, there will still be vibrations caused by the road surface. The vehicle body vibration data mainly includes the frequency and amplitude of the vibration of the vehicle caused by the road surface. The vibration index of the current vehicle is calculated based on the frequency and amplitude. The weighted sum of the vibration frequency and the vibration amplitude is used as the vibration index. Of course, the weight coefficients of the frequency and the amplitude can be changed according to different situations. Time domain analysis and / or frequency domain analysis can also be used. Then, the frequency and the amplitude are converted into parameters that can be used to evaluate the vibration degree as the quantized vibration index.

[0094] In S1315, the weighted acceleration root mean square value, the friction coefficient, the bump index and the vibration index are used as the road feature information.

[0095] The weighted acceleration root mean square value, the friction coefficient, the bump index and the vibration index can represent the influence of the road surface on the vehicle from different angles, so these information is used as the road feature information.

[0096] In the above embodiments, the road feature information is calculated from four aspects of acceleration data, deceleration data, suspension displacement data or vehicle body vibration data. The four road feature information of the weighted acceleration root mean square value, the friction coefficient, the bump index and the vibration index can reflect the influence of the road surface on the vehicle from different angles, which helps the vehicle to accurately identify the flatness and damage degree of the current road, and provides a basis for subsequent control of the vehicle adjustment driving function, which helps to improve the accuracy of the driving function adjustment.

[0097] In the foregoing embodiments, in order to cope with the influence of the road surface state on the vehicle driving, the parameters of the adjustment driving function can be controlled according to different road surface states. Correspondingly, in an optional embodiment, the driving function includes suspension control; the target parameters of the adjustment driving function of the current vehicle according to the road surface state in S140 can include:

[0098] A1, in response to the road surface state being flat, adjusting the target parameters of the suspension spring and the shock absorber to make the suspension stiffness meet the first stiffness threshold, or the suspension damping meet the first damping threshold, or the suspension stroke meet the first stroke threshold.

[0099] Among them, the road surface conditions can include flatness and potholes. Of course, the degree of potholes can be further subdivided into multiple different pothole levels, which is not limited in the embodiments of the present application. In order to adapt to the road conditions of the current road section, the suspension control function in the driving function is adjusted. Adjusting the stiffness, damping and travel of the suspension can effectively adapt to the road surface conditions. Adjusting the various suspension parameters requires adjusting the suspension springs and shock absorbers at the hardware level.

[0100] The suspension springs and shock absorbers are adjusted so that the suspension stiffness meets a first stiffness threshold, the suspension damping meets a first damping threshold, and the suspension travel meets a first travel threshold. The first stiffness threshold, the first damping threshold, and the first travel threshold should all be determined based on a flat road surface. The first stiffness threshold, the first damping threshold, and the first travel threshold can be set by relevant technicians based on extensive testing or actual conditions.

[0101] A2. In response to the road surface being pothole-like, adjusting target parameters of the suspension spring and shock absorber so that the suspension stiffness meets a second stiffness threshold, or the suspension damping meets a second damping threshold, or the suspension travel meets a second travel threshold.

[0102] Among them, the first stiffness threshold is greater than the second stiffness threshold; the first damping threshold is less than the second damping threshold; and the first stroke threshold is less than the second stroke threshold.

[0103] Similar to the above steps, the suspension springs and shock absorbers are adjusted to ensure that the suspension stiffness meets the second stiffness threshold, the suspension damping meets the second damping threshold, and the suspension travel meets the second travel threshold. The second stiffness threshold, the second damping threshold, and the second travel threshold should all be determined based on a pothole-like road surface. These second stiffness thresholds, the second damping threshold, and the second travel threshold can be set by relevant technicians based on extensive testing or actual conditions.

[0104] It should be noted that due to the difference between the pothole state and the flat state, the suspension stiffness can be made smaller when facing a pothole state than when facing a flat state. It can be understood that when the road surface is flat, the suspension stiffness required is stiffer; when the road surface is pothole-prone, the suspension stiffness required is softer.

[0105] When facing a bumpy road, the suspension damping can be made greater than when facing a flat road. It can be understood that when the road surface is flat, the suspension damping required is greater; when the road surface is bumpy, the suspension damping required is smaller to adapt to the uneven road conditions.

[0106] When facing a bumpy road, the suspension stroke can be made greater than when facing a flat road. It can be understood that a flat road does not require a large suspension stroke. On the contrary, a bumpy road requires a larger suspension stroke to ensure that the vehicle's suspension has enough movement and displacement space to adapt to complex road conditions.

[0107] In the above embodiments, the suspension spring and shock absorber of the vehicle are adjusted according to different road surface states, so that the stiffness, damping and stroke of the suspension are adapted to the road surface state, thereby providing a feasible solution for suspension adjustment for different road surface states, and further improving the adaptability of the vehicle to different road surface states, and improving the stability, safety and comfort of the vehicle, and improving the driving experience of the user.

[0108] In addition to the suspension control in the above embodiments, the driving function of the vehicle can also include control of the tire pressure. It can be understood that adjusting the tire pressure according to different road surfaces can help the vehicle to adjust the grip force in a timely manner and cope with different road conditions. Accordingly, in another alternative embodiment, the driving function includes tire pressure control; the target parameter of the driving function of the vehicle adjusted according to the road surface type in S140 can include:

[0109] B1, in response to the road surface type being a hard road surface, adjusting the tire pressure of the current vehicle to a hard road surface tire pressure value.

[0110] The hard road surface tire pressure value can be a tire pressure range preset for a hard road surface. Therefore, when the road surface type is identified as a hard road surface (such as asphalt road or cement road or brick road, etc.), the tire pressure of the vehicle is adaptively adjusted to the corresponding hard road surface tire pressure value. The adjustment can be performed by the tire central inflation system of the vehicle, which is not limited in the embodiments of the present application. Of course, since there are many different types of hard road surfaces, different road surfaces can correspond to different tire pressure values, and these hard road surface tire pressure values can be set by relevant technical personnel according to a large number of tests and / or artificial experience.

[0111] B2, in response to the road surface type being a soft road surface, adjusting the tire pressure to a soft road surface tire pressure value; the soft road surface tire pressure value is less than the hard road surface tire pressure value.

[0112] Similarly, the soft road surface tire pressure value can be a tire pressure range preset for a soft road surface. Therefore, when the road surface type is identified as a soft road surface (such as gravel road or sandy road or dirt road, etc.), the tire pressure of the vehicle is adaptively adjusted to the corresponding soft road surface tire pressure value. The adjustment can be performed by the tire central inflation system of the vehicle, which is not limited in the embodiments of the present application. Of course, since there are many different types of soft road surfaces, different road surfaces can correspond to different tire pressure values, and these soft road surface tire pressure values can be set by relevant technical personnel according to a large number of tests and / or artificial experience.

[0113] The above implementation provides a practical solution for adjusting tire pressure for different road surface types. Based on the hard or soft road surface, the tire pressure of the vehicle's tires is adjusted to the corresponding hard or soft road pressure values. This allows the vehicle's tires to adapt to different road surface types, ensuring vehicle stability and driver comfort on various road surfaces.

[0114] In the above embodiment, the method of adjusting tire pressure according to the road type is described. In another case, in order to cope with the impact of weather on the tire, the tire pressure can also be adjusted according to the weather conditions of the environment. In an optional embodiment, the method can also include:

[0115] C1. Obtain the temperature and humidity data of the current vehicle environment.

[0116] Among them, temperature and humidity data can be collected and obtained in real time through the temperature and humidity sensors installed in the current vehicle.

[0117] C2. In response to the temperature and humidity data meeting a preset dry condition, adjusting target parameters for tire inflation and deflation so that the current tire pressure of the vehicle meets a first tire pressure threshold.

[0118] Among them, the preset dry condition can be a weather standard with low humidity, and the first tire pressure threshold can be a tire pressure range corresponding to such dry weather.

[0119] C3. In response to the temperature and humidity data meeting a preset high temperature condition and / or a preset humidity condition, adjusting the target parameters for tire inflation and deflation so that the current tire pressure of the vehicle meets a second tire pressure threshold.

[0120] The preset high temperature condition may be a weather standard with a relatively high temperature, the preset humid condition may be a weather standard with a relatively high humidity, and the second tire pressure threshold may be a tire pressure range corresponding to these two types of weather.

[0121] C4. In response to the temperature and humidity data meeting a preset low temperature condition, adjusting target parameters for tire inflation and deflation so that the current tire pressure of the vehicle meets a third tire pressure threshold.

[0122] The preset low temperature condition may be a weather standard with a lower temperature, and the third tire pressure threshold may be a tire pressure range corresponding to such low temperature weather.

[0123] The first tire pressure threshold is greater than the third tire pressure threshold, and the third tire pressure threshold is greater than the second tire pressure threshold.

[0124] It should be noted that in dry weather, the tire pressure can be increased to improve tire rigidity and wear resistance. In hot weather, the tire pressure can be reduced to reduce the risk of tire blowouts. In wet weather, reducing the tire pressure can increase the tire's contact area with the ground, improving grip and stability, and also reducing slippage to a certain extent. In cold weather, the tire material will harden and reduce grip, so to compensate for this change, the tire pressure can be increased. However, it is also important to avoid excessive tire pressure, which will significantly reduce the tire's contact area with the road and reduce grip. Therefore, the first tire pressure threshold is greater than the third tire pressure threshold, and the third tire pressure threshold is greater than the second tire pressure threshold.

[0125] In the above-mentioned implementation manner, a practical solution for adjusting tire pressure according to temperature and humidity conditions is provided for the embodiment of the present application. The tire pressure is adjusted to different threshold states for different temperature and humidity weather and road conditions to better adapt to changes in temperature and humidity, ensure the grip and friction between the vehicle and the road, and ensure the safety of vehicle driving.

[0126] In addition to the suspension control and tire pressure control mentioned in the above embodiments, noise reduction control is also of certain significance to the normal driving of the vehicle. Good noise reduction can provide users with a comfortable driving experience. In another optional embodiment, the driving function includes noise reduction control; the control of the target parameters of the current vehicle driving function according to the road type described in S140 may include:

[0127] D1. In response to the road surface type being a hard road surface, the anti-phase sound wave power of the medium and high frequency noise is increased.

[0128] It is understandable that if the road surface type of the current road section is a hard road, which may be an asphalt road, cement road or brick road, the level of medium and high frequency noise on this type of hard road is relatively high. In order to actively reduce this type of noise, the reverse sound wave power of the medium and high frequency noise can be adaptively increased to neutralize the medium and high frequency noise.

[0129] D2. In response to the road surface type being a soft road surface, the anti-phase sound wave power of the low-frequency noise is increased.

[0130] Similarly, if the road surface type of the current section is soft, it may be a gravel road, mud road or dirt road. The low-frequency noise level of this type of soft road is relatively high. In order to actively reduce this type of noise, the reverse sound wave power of the low-frequency noise can be adaptively increased to neutralize the low-frequency noise.

[0131] The above-mentioned implementation method provides a practical active noise reduction control method for the embodiment of the present application. According to different road surface types, noises of different frequencies are correspondingly offset and neutralized, thereby achieving a noise reduction effect. It can enable the vehicle to provide users with a relatively quiet driving environment at all times and enhance the user's driving experience.

[0132] The aforementioned embodiments have detailed how to adjust driving functions for different road types and conditions. Furthermore, the driver can also adjust these driving functions based on their specific driving experience, and the vehicle can record these adjustments as the driver's driving preferences. Therefore, in an optional embodiment, after controlling the target parameters of the current vehicle's driving functions based on the road type and condition in S140, the method may further include:

[0133] E1. In response to a user's driving function adjustment operation, control the current vehicle to change a target parameter of the driving function, associate the changed target parameter with the current road section, and save the association relationship.

[0134] Among them, the driving function adjustment operation can be an operation in which the user manually changes the various driving functions of the vehicle. The driving functions involved in the aforementioned embodiments, such as suspension adjustment, tire pressure adjustment and noise reduction control, can all be manually fine-tuned by the user to adjust the target parameters of these functions, and at the same time, the user-adjusted target parameters are associated with the current road section, and these associations are saved.

[0135] E2. In response to the current vehicle entering the current road section again, the modified target parameters are called to adjust the driving function according to the association relationship.

[0136] It is understandable that when the user drives the current vehicle onto the road section again, it is only necessary to call the target parameters of the driving functions that the user has manually adjusted through the association relationship and perform adaptive adjustments on these driving functions.

[0137] In the above-mentioned embodiment, a method is provided for users to manually adjust the driving functions in the vehicle and save personalized settings, which can provide users with driving functions that meet their personal needs and ensure that users can control these driving functions according to their wishes to achieve a state that best meets the user's personal needs and enhance the user's driving experience.

[0138] In addition to the suspension control, tire pressure control, and noise reduction control in the above-mentioned embodiments, the suspension, tire pressure, and noise reduction can also be controlled in a coordinated manner. On the one hand, since the driving functions such as suspension control, tire pressure control, and noise reduction control are all based on the road surface condition and / or road surface type, the suspension, tire pressure, and noise reduction can be controlled simultaneously when different road surface conditions and road surface types are detected. The method can also include: pre-binding different levels of suspension and tire pressure control with different levels of noise reduction control. When the vehicle adjusts the suspension and tire pressure based on the road surface condition and / or road surface type, the corresponding level of noise reduction control is called according to the adjustment level of the suspension and tire pressure, so that the noise reduction can meet the noise conditions of the vehicle after the suspension and tire pressure are adjusted, which can help the vehicle accurately adjust the appropriate noise reduction parameters.

[0139] On the other hand, tire pressure control is also related to weather conditions. Temperature and humidity will affect tire pressure control, and weather may also affect changes in the road surface. The method may also include: in response to the road surface type being a soft road surface and the temperature and humidity data meeting the preset wet conditions, adjusting the tire pressure of the current vehicle to a preset wet road tire pressure value, and adjusting the target parameters of the suspension spring and shock absorber so that the suspension stiffness meets a third stiffness threshold; wherein the third stiffness threshold is less than the first stiffness threshold and greater than the second stiffness threshold.

[0140] It is understandable that when the humidity on a soft road surface increases, the already soft road surface becomes even more slippery, and the tire pressure is correspondingly adjusted to a tire pressure value suitable for slippery roads. This preset tire pressure value for slippery roads can be less than or equal to the aforementioned second tire pressure threshold to ensure the vehicle's tire grip. At the same time, the suspension stiffness is adjusted between hard and soft suspension, so that the vehicle is not unsuitable for slippery roads due to excessively hard suspension, and the handling is also prevented from being reduced due to excessively soft suspension. For example, if a dirt road that is already a soft road surface becomes more slippery due to increased humidity (such as after rainfall), the tire pressure should be reduced to ensure the contact area between the tire and the road surface to improve grip, and the suspension stiffness should be adjusted to an appropriate intermediate value, keeping the suspension neither too hard nor too soft.

[0141] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied in a distributed scenario and performed by multiple devices working together. In such a distributed scenario, one of the multiple devices may only perform one or more steps of the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the method.

[0142] It is to be understood that the foregoing description is directed to embodiments of the application. Various embodiments are described herein, including the best mode of the inventors. It will be apparent, however, to those skilled in the art having the benefit of this disclosure, that variations and / or modifications of these embodiments can be made without departing from the spirit and scope of the application. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0143] Figure 2 A schematic diagram of a vehicle suspension, tire pressure and noise reduction function control logic provided by an embodiment of the present application. Based on the foregoing embodiments and implementations, the present application further describes the control logic of the vehicle adaptive adjustment of suspension, tire pressure and noise reduction functions, as shown in Figure 2 The specific implementation is as follows:

[0144] Before implementing the scheme provided by the present application, a large amount of road surface data can be collected. These data can come from various channels, such as professional road surface detection agencies, road test data of automobile manufacturers, and actual driving data collected from a large number of vehicles through crowdsourcing. These data should include the type of road surface (such as asphalt road, cement road, gravel road, etc.), the state of the road surface (such as flat, slight potholes, severe damage, etc.), and the corresponding geographic location information.

[0145] Secondly, the collected data needs to be sorted and analyzed. This includes data cleaning, deduplication and error repair, as well as classification of road surface types and road surface states according to geographic location information, so as to build a database of road surface information and the corresponding relationship between road surface types and road surface states.

[0146] The road surface types can include asphalt road, cement road, brick road, sand road, gravel road, and dirt road, etc. The road surface states can include flat and potholes (including slight potholes and severe damage, etc.). These road surface types and road surface states are obtained by matching the data obtained by positioning and vehicle sensors in the aforementioned database.

[0147] When implementing the method provided by the embodiment of the present application:

[0148] S1, obtaining the positioning information of the vehicle and various sensor data.

[0149] The positioning of the vehicle can provide the geographic location information of the vehicle, and various sensors can monitor various parameters in real time during the driving of the vehicle, such as:

[0150] Acceleration sensor: measures the acceleration change of the vehicle in each direction, with the unit of meter per square second (m / s 2). On uneven roads, the acceleration sensor can detect sudden bumps and vibrations, and the peak and frequency of these data can help the system determine the degree of road damage.

[0151] Deceleration sensor: Similar to the acceleration sensor, but used to measure negative acceleration when the vehicle is decelerating. In emergency braking or encountering potholes, the data provided by the deceleration sensor can reflect the friction coefficient and unevenness of the road.

[0152] Suspension displacement sensor: Measures the up-and-down movement distance of the suspension system, in millimeters (mm). On potholed roads, the reading (peak and frequency) of the suspension displacement sensor will significantly increase, helping the system identify the unevenness of the road.

[0153] Vibration sensor: Specifically used to detect vibrations during vehicle travel, usually in units of frequency (hertz Hz) and amplitude (millimeters mm). The data from the vibration sensor can accurately reflect the flatness and damage of the road.

[0154] S2, match and search the positioning information and various sensor data in the database.

[0155] By combining these information and the pre-constructed database of road type and road state, the current road type and road state of the vehicle can be determined. For example, if the vehicle sensor detects strong bumps and vibrations, the vehicle system may determine that the vehicle is driving on a heavily damaged road.

[0156] S3, adjust the driving functions of the vehicle according to the road type and road state obtained by matching and searching.

[0157] Different road types and road states correspond to different ways of suspension adjustment, tire pressure adjustment and active noise reduction as follows:

[0158] For suspension adjustment, the stiffness, damping and travel of the suspension can be automatically adjusted according to the road type and state. For example, on flat roads, the suspension can be set relatively hard to improve vehicle handling and stability; while on potholed or damaged roads, the suspension can be set relatively soft to absorb more shocks and impacts, improving ride comfort.

[0159] For tire pressure adjustment, appropriate adjustments can be made according to the road type and road state. On hard roads, such as asphalt or concrete roads, tire pressure can be increased appropriately to increase tire rigidity and wear resistance; while on soft roads, such as gravel or muddy roads, tire pressure can be reduced appropriately to increase tire contact area with the ground, improve grip and driving stability.

[0160] In consideration of tire pressure adjustment, the influence of weather conditions on road conditions can be further taken into account:

[0161] In dry weather conditions, on hard road surfaces such as asphalt or concrete, tire pressure can be maintained or appropriately increased to improve tire rigidity and wear resistance. However, in extreme high temperatures, pressure can be appropriately reduced to reduce the risk of tire burst.

[0162] In wet weather conditions, in rainy weather or when the road surface is wet, tire pressure can be appropriately reduced to increase the contact area of the tire with the ground, improve grip and driving stability. At the same time, reducing pressure can also reduce the phenomenon of tire slipping on wet road surfaces.

[0163] In low-temperature weather conditions, in cold weather, tire materials will harden and grip will decrease. Tire pressure can be appropriately increased to compensate for this change, but also to avoid excessive pressure leading to a decrease in tire contact area with the ground, which in turn reduces grip.

[0164] For noise reduction control, noise reduction strategies can be automatically adjusted according to the characteristics and intensity of road noise. For example, when driving on gravel or dirt roads, the noise reduction effect of low-frequency noise can be enhanced; while driving on asphalt or concrete roads, more attention can be paid to the noise reduction effect of medium and high frequency noise. In addition, noise reduction parameters can be adjusted in real time according to parameters such as vehicle speed and engine speed to achieve the best noise reduction effect.

[0165] S4, display to the user through the car machine. After adjusting the driving function of the vehicle, the adjusted result can be fed back to the user through the car machine.

[0166] S5, user manually adjusts the target parameters of the driving function. Users can fine-tune the target parameters of these driving functions according to their own preferences to meet their individualized requirements.

[0167] S6, save user fine-tuned settings. User preference settings are stored, which can be stored separately in a storage space or in the database mentioned in S2. When the user passes through the current road section again, the user's previously set preference parameters can be directly called to adjust the driving function of the vehicle.

[0168] Based on the same inventive concept, the present application also provides a vehicle control device corresponding to any of the above-mentioned embodiment methods.

[0169] Figure 3 A structural diagram of a vehicle control device provided by the embodiments of the present application is shown in Figure 3The control device 300 of the vehicle comprises a vehicle data acquisition module 310, a road surface type determination module 320, a road surface state determination module 330, and a driving function adjustment module 340, wherein:

[0170] The vehicle data acquisition module 310 is configured to acquire positioning data and dynamic disturbance data of the current vehicle.

[0171] The road surface type determination module 320 is configured to determine a road surface type of a current road section where the current vehicle is located according to the positioning data.

[0172] The road surface state determination module 330 is configured to determine a road surface state of the current road section according to the dynamic disturbance data.

[0173] The driving function adjustment module 340 is configured to control a target parameter of a driving function of the current vehicle according to the road surface type and the road surface state.

[0174] In the technical scheme of the embodiment, the road surface type of the road section where the vehicle is located is determined according to the positioning data acquired by the current vehicle, the specific construction material of the current road section can be accurately determined according to the location of the current vehicle, the vehicle is provided with an accurate reference of the road surface type, the vehicle can adaptively adjust different driving functions according to different road surface types, and thus the accuracy and rationality of the driving function control of the vehicle are improved. The road surface state of the road section where the vehicle is located is determined according to various dynamic disturbance data detected by the current vehicle, the road surface state of the current road section can be obtained from multi-dimensional and multi-aspect data analysis, the vehicle is provided with an accurate reference of the road surface state, the vehicle can adaptively adjust different driving functions according to different road surface states, and thus the accuracy and rationality of the driving function control of the vehicle are improved. The target parameter of the driving function of the vehicle is adjusted based on the road surface type and the road surface state, the driving function of the vehicle can be adaptively adjusted when facing different road conditions, a stable and comfortable driving state is provided for the user, and thus the driving experience of the user is improved.

[0175] In an optional embodiment, the road surface state determination module 330 can comprise:

[0176] A road surface feature determination unit is configured to determine road surface feature information of the current road section according to the dynamic disturbance data.

[0177] A road surface state determination unit is configured to query and determine the road surface state of the current road section in a pre-constructed association database of road surface feature information and road surface state according to the road surface feature information.

[0178] In an optional embodiment, the dynamic disturbance data comprises acceleration data, deceleration data, suspension displacement data, or vehicle body vibration data; and the road surface feature determination unit can comprise:

[0179] an acceleration feature determination subunit configured to calculate a weighted acceleration root mean square value of the current vehicle according to the acceleration data;

[0180] a deceleration feature determination subunit configured to determine a friction coefficient of the current road section according to the deceleration data;

[0181] a suspension displacement feature determination subunit configured to determine a jounce index of the current road section according to a peak value and a peak value occurrence frequency of the suspension displacement data;

[0182] a vehicle body vibration feature determination subunit configured to determine a vibration index of the current vehicle according to the vehicle body vibration data;

[0183] a feature information synthesis subunit configured to synthesize the weighted acceleration root mean square value, the friction coefficient, the jounce index and the vibration index as the road surface feature information.

[0184] In an optional embodiment, the driving function includes suspension control; the driving function adjustment module 340 can include:

[0185] a flat road surface suspension adjustment unit configured to adjust target parameters of the suspension spring and the shock absorber to make the suspension stiffness meet a first stiffness threshold, or the suspension damping meet a first damping threshold, or the suspension stroke meet a first stroke threshold, in response to the road surface state being flat;

[0186] a potholed road surface suspension adjustment unit configured to adjust target parameters of the suspension spring and the shock absorber to make the suspension stiffness meet a second stiffness threshold, or the suspension damping meet a second damping threshold, or the suspension stroke meet a second stroke threshold, in response to the road surface state being potholed;

[0187] wherein the first stiffness threshold is greater than the second stiffness threshold; the first damping threshold is less than the second damping threshold; and the first stroke threshold is less than the second stroke threshold.

[0188] In an optional embodiment, the driving function includes tire pressure control; the driving function adjustment module 340 can include:

[0189] a hard road surface tire pressure adjustment unit configured to adjust the tire pressure of the current vehicle to a hard road surface tire pressure value in response to the road surface type being a hard road surface;

[0190] a soft road surface tire pressure adjustment unit configured to adjust the tire pressure to a soft road surface tire pressure value in response to the road surface type being a soft road surface; the soft road surface tire pressure value is less than the hard road surface tire pressure value.

[0191] In an optional embodiment, the device 300 can further include:

[0192] The temperature and humidity acquisition module is configured to acquire temperature and humidity data of an environment in which the vehicle currently locates.

[0193] The dry environment tire pressure adjustment module is configured to, in response to the temperature and humidity data meeting preset dry conditions, adjust target parameters of tire inflation and deflation so that the tire pressure of the vehicle meets a first tire pressure threshold.

[0194] The high temperature / humid environment tire pressure adjustment module is configured to, in response to the temperature and humidity data meeting preset high temperature conditions and / or preset humid conditions, adjust target parameters of tire inflation and deflation so that the tire pressure of the vehicle meets a second tire pressure threshold.

[0195] The low temperature environment tire pressure adjustment module is configured to, in response to the temperature and humidity data meeting preset low temperature conditions, adjust target parameters of tire inflation and deflation so that the tire pressure of the vehicle meets a third tire pressure threshold.

[0196] The first tire pressure threshold is greater than the third tire pressure threshold, and the third tire pressure threshold is greater than the second tire pressure threshold.

[0197] In an optional implementation, the driving function includes noise reduction control, and the driving function adjustment module 340 can include:

[0198] The hard road surface noise reduction unit is configured to, in response to the road surface type being a hard road surface, increase the power of the anti-phase sound wave of the middle-high frequency noise.

[0199] The soft road surface noise reduction unit is configured to, in response to the road surface type being a soft road surface, increase the power of the anti-phase sound wave of the low frequency noise.

[0200] In an optional implementation, the device 300 can further include:

[0201] The user preference recording module is configured to, in response to a user driving function adjustment operation, control the vehicle to change target parameters of the driving function, associate the changed target parameters with the current road section, and save the association relationship.

[0202] The preference setting calling module is configured to, in response to the vehicle again entering the current road section, call the changed target parameters to adjust the driving function according to the association relationship.

[0203] For the convenience of description, the above device is described in various modules according to functions. Of course, the functions of the modules can be implemented in one or more software and / or hardware in the implementation of the present application.

[0204] The device of the above embodiment is used to implement the control method of the vehicle in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described herein.

[0205] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor, wherein when the processor executes the program, the vehicle control method described in any of the above embodiments is implemented.

[0206] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 4 The figure shows a specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other within the device via the bus 1050.

[0207] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0208] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage devices, dynamic storage devices, etc. The memory 1020 can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0209] The input / output interface 1030 is used to connect input / output modules to implement information input and output. The input / output modules can be configured as components within the device (not shown in the figure) or can be externally connected to the device to provide corresponding functions. Input devices may include a keyboard, mouse, touch screen, microphone, various sensors, etc., and output devices may include a display, speaker, vibrator, indicator light, etc.

[0210] The communication interface 1040 is used to connect to a communication module (not shown) to enable communication between the device and other devices. The communication module can communicate via a wired method (such as USB, network cable, etc.) or a wireless method (such as mobile network, WiFi, Bluetooth, etc.).

[0211] The bus 1050 comprises a path for transmitting information between the various components of the device (eg, the processor 1010 , the memory 1020 , the input / output interface 1030 , and the communication interface 1040 ).

[0212] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in a specific implementation, the device may also include other components necessary for normal operation. In addition, it will be understood by those skilled in the art that the above device may only include the components necessary to implement the embodiments of this specification, and does not necessarily include all the components shown in the figure.

[0213] The electronic device of the above embodiment is used to implement the corresponding vehicle control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0214] Based on the same inventive concept, corresponding to any of the above embodiments and methods, the present application further provides a vehicle, comprising:

[0215] a memory for storing executable program code;

[0216] A processor is used to call and run the executable program code from the memory, so that the vehicle executes the method provided in any embodiment of the present application.

[0217] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable the computer to execute the vehicle control method described in any of the above embodiments.

[0218] The computer-readable media of this embodiment include permanent and non-permanent, removable and non-removable media that can be used to store information by any method or technology. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0219] The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the vehicle control method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0220] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0221] In addition, for simplicity of description and discussion, and in order not to make the embodiment of the application difficult to understand, the known power supply / ground connection with integrated circuit (IC) chip and other components may or may not be shown in the accompanying drawings provided. In addition, the device can be shown in the form of a block diagram to avoid making the embodiment of the application difficult to understand, and this also takes into account the following fact, that is, the details of the embodiment of these block diagram devices are highly dependent on the platform to be implemented in the embodiment of the application (that is, these details should be fully within the scope of understanding of those skilled in the art). When specific details (for example, circuit) are set forth to describe exemplary embodiments of the application, it will be apparent to those skilled in the art that the embodiment of the application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0222] Although the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may utilize the embodiments discussed.

[0223] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A vehicle control method, characterized in that: The method comprises: Obtain the current vehicle's positioning data and dynamic disturbance data; Determining the road surface type of the current road section where the current vehicle is located based on the positioning data; determining a road surface condition of the current road section according to the dynamic disturbance data; controlling the current vehicle to adjust a target parameter of a driving function according to the road surface type and the road surface state; Determining the road surface state of the current road section according to the dynamic disturbance data includes: Determining road surface characteristic information of the current road section according to the dynamic disturbance data; According to the road surface characteristic information, query and determine the road surface condition of the current road section in a pre-built database of association between road surface characteristic information and road surface conditions; The dynamic disturbance data includes acceleration data, deceleration data, suspension displacement data or vehicle body vibration data; Determining road surface characteristic information of the current road section according to the dynamic disturbance data includes: Calculating a weighted root mean square value of acceleration of the current vehicle according to the acceleration data; determining a friction coefficient of the current road section according to the deceleration data; determining a bumpiness index of the current road section according to a peak value and a frequency of occurrence of the peak value of the suspension displacement data; determining a vibration index of the current vehicle according to the vehicle body vibration data; The weighted acceleration root mean square value, the friction coefficient, the bump index and the vibration index are used as the road surface feature information.

2. The method according to claim 1, characterized in that Said driving functions include suspension control; The step of controlling the current vehicle to adjust a target parameter of a driving function according to the road surface condition includes: In response to the road surface being flat, adjusting target parameters of a suspension spring and a shock absorber so that the suspension stiffness meets a first stiffness threshold, or the suspension damping meets a first damping threshold, or the suspension travel meets a first travel threshold; In response to the road surface state being a pothole, adjusting target parameters of the suspension spring and the shock absorber so that the suspension stiffness meets a second stiffness threshold, or the suspension damping meets a second damping threshold, or the suspension travel meets a second travel threshold; The first stiffness threshold is greater than the second stiffness threshold; the first damping threshold is less than the second damping threshold; and the first stroke threshold is less than the second stroke threshold.

3. The method according to claim 1, characterized in that Said driving functions include tire pressure control; The step of controlling the target parameter of the current vehicle to adjust the driving function according to the road surface type includes: In response to the road surface type being a hard road surface, adjusting the tire pressure of the current vehicle to a hard road tire pressure value; In response to the road surface type being a soft road surface, the tire pressure is adjusted to a soft road surface tire pressure value; the soft road surface tire pressure value is less than the hard road surface tire pressure value.

4. The method according to claim 1, wherein The method further comprises: Obtaining temperature and humidity data of the environment in which the current vehicle is located; In response to the temperature and humidity data meeting a preset dry condition, adjusting target parameters for tire inflation and deflation so that the tire pressure of the current vehicle meets a first tire pressure threshold; In response to the temperature and humidity data meeting a preset high temperature condition and / or a preset humidity condition, adjusting a target parameter for tire inflation and deflation so that the tire pressure of the current vehicle meets a second tire pressure threshold; In response to the temperature and humidity data meeting a preset low temperature condition, adjusting target parameters for tire inflation and deflation so that the tire pressure of the current vehicle meets a third tire pressure threshold; The first tire pressure threshold is greater than the third tire pressure threshold, and the third tire pressure threshold is greater than the second tire pressure threshold.

5. The method according to claim 1, wherein Said driving functions include noise reduction control; The step of controlling the target parameter of the current vehicle to adjust the driving function according to the road surface type includes: In response to the road surface type being a hard road surface, increasing the power of the reverse phase sound waves of the medium and high frequency noise; In response to the road surface type being a soft road surface, the power of the anti-phase sound wave of the low-frequency noise is increased.

6. The method according to claim 1, characterized in that After controlling the current vehicle to adjust the target parameter of the driving function according to the road surface type and the road surface state, the method further includes: In response to a user's driving function adjustment operation, controlling the current vehicle to change a target parameter of the driving function, associating the changed target parameter with the current road section, and saving the association relationship; In response to the current vehicle entering the current road section again, the modified target parameter is called to adjust the driving function according to the association relationship.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method according to any one of claims 1 to 6 is implemented.

8. A vehicle, characterized in that: The vehicle comprises: a memory for storing executable program code; A processor is configured to call and run the executable program code from the memory, so that the vehicle executes the method according to any one of claims 1 to 6.

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