Suspension control method, apparatus, computing device, and computer-readable storage medium

Abstract

This invention discloses a suspension control method, device, computing equipment, and computer-readable storage medium, belonging to the field of vehicle control technology. The method includes: acquiring vehicle position information and determining reference height and reference pressure based on the position information; acquiring the driver's driving habit coefficient and adjusting the reference height and reference pressure according to the driving habit coefficient to obtain target height and target pressure; controlling the suspension to adjust the height between the vehicle body and the wheels to the target height; and adjusting the damper pressure of the suspension to the target pressure. This method, based on big data calculations, determines the suspension height and damper pressure used by most vehicles at various driving positions. During vehicle operation, it determines the reference height and reference pressure in real time based on position information, and then adjusts the suspension height and damper pressure in conjunction with the driver's driving habits, improving the accuracy and timeliness of suspension adjustment, thereby enhancing ride comfort and driving experience.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a suspension control method, device, computing equipment, and computer-readable storage medium. Background Technology

[0002] Currently, car owners still face the challenge of balancing driving comfort and driving experience when using their vehicles. For example, some vehicles have overly stiff suspensions, resulting in poor passenger comfort but a passable driving experience. Others have overly soft suspensions, providing good passenger comfort but a poor driving experience, which can feel like "sitting on a boat."

[0003] Therefore, there is an urgent need for a suspension control method that can balance driving experience and ride comfort. Summary of the Invention

[0004] To address this issue, the present invention proposes a suspension control method, a suspension control device, a computing device, and a computer-readable storage medium, aiming to at least partially solve the technical problem in related technologies where suspension control cannot simultaneously consider driving experience and ride comfort.

[0005] To achieve the above objectives, a first aspect of the present invention provides a suspension control method, the method comprising:

[0006] Obtain the vehicle's location information and determine the reference height and reference pressure based on the location information;

[0007] Obtain the driver's driving habit coefficient, and adjust the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure;

[0008] The control suspension adjusts the height between the vehicle body and the wheels to the target height and adjusts the pressure of the suspension dampers to the target pressure.

[0009] According to one embodiment of the present invention, determining a reference altitude and a reference pressure based on location information includes:

[0010] The reference height and reference pressure corresponding to the position information are determined from the preset correspondence. The reference height is the height of the suspension when the vehicle is traveling at the position indicated by the position information, and the reference pressure is the pressure of the damper when the vehicle is traveling at the position.

[0011] According to one embodiment of the present invention, before determining the reference height and reference pressure based on the location information, the method further includes:

[0012] Acquire historical driving information of multiple vehicles at different locations. The historical driving information includes the suspension height and damper pressure of each vehicle when driving at different locations.

[0013] Determine the mode of height and the mode of pressure based on the suspension height and damper pressure of multiple vehicles traveling at any position.

[0014] The mode of height is determined as the reference height of the vehicle when it is in position, and the mode of pressure is determined as the reference pressure of the vehicle when it is in position.

[0015] Establish and store the correspondence between the location information of each location and the reference height and reference pressure.

[0016] According to one embodiment of the present invention, determining a reference altitude and a reference pressure based on location information includes:

[0017] The system acquires road condition information for the location indicated by the location information, and determines the reference height and reference pressure corresponding to the road condition information. The reference height is the height of the suspension when the vehicle is traveling on the road surface corresponding to the road condition information, and the reference pressure is the pressure of the damper when the vehicle is traveling on the road surface corresponding to the road condition information.

[0018] According to one embodiment of the present invention, adjusting the reference height and reference pressure based on a driving habit coefficient to obtain the target height and target pressure includes:

[0019] If the driving habit coefficient is less than the first preset threshold, the reference height is lowered to obtain the target height, and the reference pressure is increased to obtain the target pressure.

[0020] If the driving habit coefficient is equal to the first preset threshold, the reference height and reference pressure remain unchanged.

[0021] According to one embodiment of the present invention, adjusting the reference height and reference pressure based on a driving habit coefficient to obtain the target height and target pressure includes:

[0022] If the driving habit coefficient is greater than the second preset threshold, the reference height is increased to obtain the target height, and the reference pressure is decreased to obtain the target pressure.

[0023] According to one embodiment of the present invention, obtaining a driver's driving habit coefficient includes:

[0024] Facial recognition is used to identify drivers and obtain their user information and driving habits.

[0025] Based on user information and driving habit information, determine the driver's driving habit coefficient.

[0026] According to one embodiment of the present invention, the user information includes at least age and gender, and the driving habit information includes at least the number of times the driver accelerates rapidly, the number of times the driver decelerates rapidly, the number of times the driver takes high-speed corners, the number of times the driver drives at high speed, the average vehicle speed, and the maximum vehicle speed within a preset time period.

[0027] According to one embodiment of the present invention, obtaining the location information of a vehicle includes:

[0028] When using map navigation, the navigation route is obtained in advance based on the origin and destination, and the vehicle's position on the navigation route is determined.

[0029] Locate the vehicle's position while it is in motion, without using map navigation.

[0030] To achieve the above objectives, a second aspect of the present invention provides a suspension control device, characterized in that the device comprises:

[0031] The determination module is configured to acquire the vehicle's location information and determine the reference height and reference pressure based on the location information;

[0032] The adjustment module is configured to acquire the driver's driving habit coefficient and adjust the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure.

[0033] The control module is configured to control the suspension to adjust the height between the vehicle body and the wheels to a target height and to adjust the pressure of the suspension dampers to a target pressure.

[0034] To achieve the above objectives, a third aspect of the present invention provides a computing 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 computer program, it implements the suspension control method as described in any of the first aspects above.

[0035] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the suspension control method as described in any of the first aspects above.

[0036] The suspension control method provided in this invention acquires vehicle position information and determines reference height and reference pressure based on the position information. It also acquires the driver's driving habit coefficient and adjusts the reference height and reference pressure according to the coefficient to obtain target height and target pressure. The method then controls the suspension to adjust the height between the vehicle body and the wheels to the target height and adjusts the damper pressure to the target pressure. This method, based on big data calculations, determines the suspension height and damper pressure used by most vehicles in various driving positions. During vehicle operation, it determines the reference height and reference pressure in real time based on position information and adjusts the suspension height and damper pressure in conjunction with the driver's driving habits, improving the accuracy and timeliness of suspension adjustment, thereby enhancing ride comfort and driving experience.

[0037] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0038] Figure 1 This is a flowchart of a suspension control method provided according to an embodiment of the present invention;

[0039] Figure 2 This is a framework diagram of a suspension control system provided according to an embodiment of the present invention;

[0040] Figure 3 This is a flowchart of another suspension control method provided according to an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the structure of a suspension control device according to an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of a computing device provided according to an embodiment of the present invention. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] With the development of automotive technology and the enrichment of people's material and cultural lives, users have placed higher demands on the balance between driving pleasure and driving comfort. Whether it's a heavily modified car with excellent maneuverability but poor ride comfort, or a car that offers great comfort but lacks any maneuverability, neither can meet the current demands of car manufacturers. However, thanks to advancements in big data, electrical engineering, and related fields, improvements in variable suspension technology have made it possible to achieve a balance between ride comfort and driving experience.

[0045] This invention combines the driver's driving habits with the suspension height and damper pressure of most vehicles at different positions, and applies the calculated values ​​in the vehicle network to provide suspension adjustment suggestions during driving. This allows car owners to choose the corresponding suspension state according to their driving habits, avoiding back pain caused by an overly stiff suspension or a lack of driving experience caused by an overly soft suspension. It improves the timeliness and accuracy of suspension control, thereby improving ride comfort and driving experience.

[0046] The suspension control method, apparatus, computing device, and computer-readable storage medium proposed in the embodiments of the present invention are described below with reference to the accompanying drawings.

[0047] Figure 1 This is a flowchart of a suspension control method provided according to an embodiment of the present invention, which may include the following steps.

[0048] Step 101: Obtain the vehicle's location information and determine the reference height and reference pressure based on the location information.

[0049] In this embodiment of the invention, a suspension adjustment strategy for the driving route can be planned for the vehicle before driving, and the suspension adjustment strategy can be adjusted according to the driver's driving habits during driving. Alternatively, the suspension can be adjusted in real time according to the road conditions and the driver's driving habits during driving.

[0050] In some embodiments, the specific implementation of obtaining vehicle location information may include: when using map navigation, obtaining a navigation route in advance based on the starting point and the destination, and determining the vehicle's position on the navigation route; when not using map navigation, locating the vehicle's location information during vehicle travel.

[0051] In other words, when a user uses map navigation, multiple navigation routes can be displayed based on the user's input start and end points. The system can also retrieve the selected route, which includes location information for multiple points. During vehicle travel, the system can display the vehicle's real-time location along the navigation route. When the user is not using map navigation, the system can locate the vehicle's position in real-time using its positioning system.

[0052] The positioning system can be GNSS (Global Navigation Satellite System), supporting the satellite navigation systems of the four major global satellite navigation system providers: BDS (Beidou Navigation Satellite System), GPS (Global Positioning System), GLONASS (GLOBAL NAVIGATION SATELLITE SYSTEM), or GALILEO (Galileo satellite navigation system).

[0053] Furthermore, when a user uses map navigation, after obtaining the navigation route, if the database stores road condition information for the driving segments included in the navigation route or information on the vehicle's commonly used suspension status (including suspension height and damper pressure) for that driving segment, the adjustment strategy for the vehicle's suspension during driving can be pre-determined based on the road condition information or suspension status information. This adjustment strategy includes how to adjust the suspension height and damper pressure at each location on the navigation route, and when the vehicle reaches each location, the suspension can be adjusted in combination with the adjustment strategy and the driver's driving habits.

[0054] Therefore, before determining the reference height and reference pressure based on the location information, the process also includes: acquiring historical driving information of multiple vehicles at different locations, where the historical driving information includes the suspension height and damper pressure of each vehicle when driving at different locations; determining the mode of height and the mode of pressure based on the suspension height and damper pressure of multiple vehicles when driving at any location; determining the mode of height as the reference height of the vehicle when driving at the location, and determining the mode of pressure as the reference pressure of the vehicle when driving at the location; establishing and storing the correspondence between the location information of each location and the reference height and reference pressure.

[0055] In practice, historical driving information of multiple vehicles at different locations can be obtained in advance. The historical driving information of multiple vehicles at a single location includes the suspension height and damper pressure of each vehicle when driving at that location. For any location, the mode of the suspension height of multiple vehicles when driving at that location is used as the reference height, and the mode of the damper pressure of multiple vehicles when driving at that location is used as the reference pressure. In this way, the reference height and reference pressure of each location can be determined. Then, the correspondence between the location information of each location and the reference height and reference pressure is established and stored.

[0056] In some embodiments, the specific implementation of determining the reference height and reference pressure based on the location information may include: determining the reference height and reference pressure corresponding to the location information from a preset correspondence, wherein the reference height is the height of the suspension when the vehicle is traveling at the position indicated by the location information, and the reference pressure is the pressure of the damper when the vehicle is traveling at the position.

[0057] In practice, the commonly used suspension height and damper pressure at each location can be determined based on the suspension status information of most vehicles at the same location information. These can be used as reference height and reference pressure, which can be considered to provide the best driving experience and comfort. Therefore, the correspondence between location information and reference height and reference pressure can be stored in advance. During vehicle operation, the reference height and reference pressure can be determined based on the location information, enabling timely and accurate adjustment of the vehicle suspension to improve driving experience and ride comfort.

[0058] Because in different scenarios, even if the road conditions are the same, different suspension status information may be needed to control the vehicle suspension due to the influence of other surrounding factors, the above method stores the correspondence between position information and suspension status information. That is, the suspension height and damper pressure used by the vehicle are different at different positions. In this way, the determined suspension status information is more conducive to the driving of the vehicle at that position, making the suspension control more precise.

[0059] In other embodiments, road condition information from multiple vehicles at different locations can be obtained, as well as the suspension height and damper pressure used by the vehicles when driving at different locations. For locations with the same road condition information, based on the suspension height and damper pressure used by multiple vehicles on the road surface indicated by the road condition information, the suspension height and damper pressure that most vehicles will use on road sections with the same degree of bumpiness can be determined, that is, the reference height and reference pressure used on the road surface indicated by the road condition information can be determined, and then the correspondence between road condition information and reference height and reference pressure can be established and stored.

[0060] The road condition information can include the degree of road bumpiness and the road type. The degree of road bumpiness can be represented by levels such as Level 1 and Level 2, with higher levels indicating more bumpy roads. The road type can be, for example, snow, mud, cement, asphalt, etc.

[0061] In this case, the specific implementation of determining the reference height and reference pressure based on the location information may include: obtaining road condition information of the location indicated by the location information, and determining the reference height and reference pressure corresponding to the road condition information, wherein the reference height is the height of the suspension when the vehicle is traveling on the road surface corresponding to the road condition information, and the reference pressure is the pressure of the damper when the vehicle is traveling on the road surface corresponding to the road condition information.

[0062] In practice, road condition information for the location indicated by the location information can be retrieved from the database. The reference height and reference pressure corresponding to this road condition information can then be determined from a pre-stored mapping. This reference height and reference pressure represent the suspension height and damper pressure used by most vehicles on the road surface indicated by the road condition information. Therefore, using this reference height and reference pressure to adjust the vehicle suspension can improve the accuracy of suspension adjustments.

[0063] In this embodiment of the invention, the suspension status information commonly used by most vehicles when driving in different locations is determined by big data calculation, or the road condition information or road condition information provided by a third party is determined by driving information fed back by the user. The road condition information at each latitude and longitude (i.e., the road condition information at each location) is marked on the navigation system, and the correspondence between the location and the suspension status information is stored. Alternatively, the correspondence between the location and the road condition information, as well as the correspondence between the road condition information and the suspension status information, is stored. During vehicle driving, the vehicle's suspension is adjusted in combination with these correspondences and the driver's driving habits to achieve flexible suspension adjustment.

[0064] Step 102: Obtain the driver's driving habit coefficient, and adjust the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure.

[0065] In this embodiment of the invention, since different drivers have different driving habits, some drivers have a more "aggressive" driving habit and some drivers have a more "gentle" driving habit. The vehicle suspension adjustment strategies adapted to drivers with different driving habits are different. Therefore, it is also necessary to take into account the driver's driving habits and determine the driver's driving habit coefficient. The reference height and reference pressure are adjusted in combination with the driving habit coefficient to obtain a pressure adjustment strategy that is more in line with the current driving conditions.

[0066] In some embodiments, obtaining a driver's driving habit coefficient may include: performing facial recognition on the driver to obtain the driver's user information and driving habit information; and determining the driver's driving habit coefficient based on the user information and driving habit information. Furthermore, the user information includes at least age and gender, and the driving habit information includes at least the number of times the driver accelerated rapidly, decelerated rapidly, took high-speed corners, drove at high speeds, averaged speed, and maximum speed within a preset time period.

[0067] The preset time period is a pre-set time period, such as one month, half a year, three months, ten days, etc., which can be set according to actual needs. This embodiment of the invention does not limit this.

[0068] In practice, vehicles can be equipped with facial recognition devices. After the driver gets into the vehicle, the device performs facial recognition on the driver. If the driver's information is stored locally, it means the driver has used the vehicle before, and the driver's user information and driving habit information can be retrieved locally. Based on this information, the driver's driving habit coefficient can be determined. If the driver's information is not stored locally, it means the driver may not have used the vehicle before, and the driver's age and gender can be determined through facial recognition, and the driver's driving habit information can be retrieved from the cloud platform.

[0069] As an example, determining the driving habit coefficient based on user information and driving habit information can include: setting appropriate values ​​for each dimension, such as age, gender, number of rapid accelerations, number of rapid decelerations, number of high-speed cornerings, number of high-speed driving sessions, average vehicle speed, and maximum vehicle speed, and determining the weight of each dimension. Based on the values ​​and weights of each dimension, the driving habit coefficient is determined. Furthermore, the driving habit coefficient can be used to evaluate a driver's driving habits; the more "gentle" the driving habits, the higher the driving habit coefficient, and the more "aggressive" the driving habits, the lower the driving habit coefficient.

[0070] For example, assuming an age range of [18, 30], the age value is set to 0.7; [31, 40], the age value is set to 0.8; [41, 50], the age value is set to 0.9; and for ages over 50, the age value is set to 1. For males, the gender value is set to 0.7, and for females, the gender value is set to 1. For each instance of rapid acceleration / deceleration / high-speed cornering / high-speed driving exceeding 20 times, the corresponding value is set to 0.7; exceeding 10 times, the corresponding value is set to 0.8; exceeding 5 times, the corresponding value is set to 0.9; and less than 5 times, the corresponding value is set to 1. A pre-defined correspondence between average speed and the value, as well as between maximum speed and the value, is established, with higher average or maximum speeds corresponding to lower values. Furthermore, the weights for age and gender can be set to 20%, and the weights for other parameters to be 10%. A weighted sum is then calculated based on the weights and values ​​of each dimension to determine the driving habit coefficient.

[0071] In other embodiments, during the driver's driving process, relevant information about the driver's driving can be obtained through the vehicle's sensors, and the driver's driving habits can be determined based on this information. The driver's driving habit coefficient can be calculated in advance based on the driver's user information and driving habit information and stored locally or on a cloud platform. When the driver uses the vehicle later, after facial recognition of the driver, the driver's driving habit coefficient can be directly obtained, which can reduce the amount of calculation, improve the efficiency of obtaining the driving habit coefficient, and thus adjust the vehicle suspension in a timely manner.

[0072] Furthermore, after determining the driving habit coefficient, if the driving habit coefficient is less than a first preset threshold, the reference height is lowered to obtain the target height, and the reference pressure is increased to obtain the target pressure; if the driving habit coefficient is equal to the first preset threshold, the reference height and reference pressure remain unchanged. The first preset threshold can be 1, or it can be set and adjusted according to actual needs; this embodiment of the invention does not limit this.

[0073] In other words, if the driving habit coefficient is less than the first preset threshold, it indicates that the driver's driving habits are relatively "aggressive." In this case, the suspension height can be lowered and the damper pressure increased, making the vehicle more stable. If the driving habit coefficient is equal to the first preset threshold, it means that the driver's driving habits are similar to most drivers, and no adjustment to the reference height and reference pressure is needed. Furthermore, if the first preset threshold is 1, the maximum driving habit coefficient is 1, and there is no situation where the driving habit coefficient is greater than the first preset threshold. If the first preset threshold is not 1, and the driving habit coefficient is greater than the first preset threshold, the suspension height can be slightly increased and the damper pressure slightly decreased, or the reference height and reference pressure can be kept unchanged.

[0074] Furthermore, if the driving habit coefficient is greater than the second preset threshold, the reference height is increased to obtain the target height, and the reference pressure is decreased to obtain the target pressure. The second preset threshold differs from the first preset threshold and is set and adjusted according to actual needs; this embodiment of the invention does not limit its application. For example, the second preset threshold could be 0.9 or 0.8.

[0075] In other words, if the driving habit coefficient is greater than the second preset threshold, it means that the driver's driving habits are relatively mild. In this case, the suspension height can be appropriately lowered and the damper pressure increased, which will improve the driver's driving experience.

[0076] In practice, the reference height or reference pressure can be adjusted based on the difference between the driving habit coefficient and the first preset threshold. For example, assuming the first preset threshold is 1 and the driving habit coefficient is 0.9, the reference height can be decreased by 0.1 and the reference pressure increased by 0.1. However, this adjustment method is only an example and does not limit the solution.

[0077] In this embodiment of the invention, the suspension is adjusted in real time during vehicle operation based on the vehicle's location information and the driver's driving habits, thereby improving the accuracy and flexibility of suspension adjustment.

[0078] It should be noted that there are limitations to the adjustment range of suspension height and damper pressure. Therefore, the target height and target pressure obtained after adjusting the reference height and reference pressure must not exceed the suspension height range and damper pressure range to ensure the normal use of the vehicle. The suspension height range and damper pressure range are determined at the vehicle's factory and are related to the performance of the suspension used.

[0079] Furthermore, the calculation of the driving habit coefficient mentioned above can also be achieved through a driving habit model. This model can be trained based on user information and driving habit information from a large number of users, including registered users, guests, and virtual initial users within the platform. After facial recognition of the driver, if the driver's information is stored locally or on the cloud platform, and this information includes suspension and seat status information commonly used by the driver while driving, the suspension can be adjusted according to the suspension status information obtained from the local or cloud platform, and the seat can be adjusted according to the seat status information. Then, during vehicle operation, the vehicle suspension can be further adjusted based on the vehicle's position and driving habit information to adapt to different road sections, improve the flexibility of suspension control, and thus enhance driving comfort.

[0080] Step 103: Control the suspension to adjust the height between the vehicle body and the wheels to the target height, and adjust the pressure of the suspension dampers to the target pressure.

[0081] In practice, the height between the vehicle body and the wheels is a crucial factor affecting vehicle handling and comfort. When the height between the body and wheels is too low, encountering bumpy or potholed roads can cause significant vibrations and swaying, impacting handling and comfort, and potentially even causing the chassis to rub against the ground, creating safety hazards. Therefore, by controlling the suspension height adjuster to the target height and adjusting the suspension damper pressure to the target level, the vibrations and swaying transmitted from the wheels to the body when driving on the road can be reduced. This allows the vehicle to adapt to different road conditions, improving handling and comfort, while also preventing the chassis from rubbing against the ground, thus enhancing vehicle safety.

[0082] The suspension control method provided in this invention determines the suspension height and damper pressure used by most vehicles at various driving positions based on big data calculations. During vehicle operation, it determines reference height and reference pressure in real time based on position information, and then adjusts the suspension height and damper pressure in combination with the driver's driving habits. This allows the driver to choose the appropriate suspension state according to their driving habits, avoiding back pain caused by an overly stiff suspension or a lack of driving experience caused by an overly soft suspension. This improves the timeliness and accuracy of suspension control, thereby enhancing ride comfort and driving experience.

[0083] Figure 2 This is a framework diagram of a suspension control system according to an embodiment of the present invention. The system includes a cloud platform and in-vehicle equipment. The in-vehicle equipment can be the subject executing the method, and the cloud platform can be a vehicle-to-everything (V2X) cloud platform.

[0084] As an example, the cloud platform stores the correspondence between location information and reference height and reference pressure, as well as user information and driving habit information. The onboard equipment may include an onboard communication module, an electronically controlled damping module, sensors, and a positioning module. The positioning module is used to locate the vehicle and obtain its location information; the onboard communication module communicates with the cloud platform to obtain user information and driving habit information, and to obtain various correspondences based on the location information (at least including the correspondence between location information and reference height and reference pressure); the sensors collect relevant information during vehicle operation (including vehicle speed, acceleration, location information, etc.) and transmit it to the cloud platform; the electronically controlled damping module determines the target height and target pressure based on the received user information, driving habit information, and various correspondences, and adjusts the suspension height and damper pressure accordingly.

[0085] In this embodiment of the invention, before the vehicle departs, the driver inputs the starting point and destination on the electronic map and clicks "Start Navigation." The positioning module of the vehicle-mounted device locates the vehicle's position information in real time and sends it to the vehicle-mounted communication module. The vehicle-mounted communication module obtains the reference height and reference pressure corresponding to the location information from the cloud platform and obtains the driver's driving habit coefficient, which is then sent to the electronically controlled damping module. The electronically controlled damping module adjusts the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure. It then controls the suspension height adjuster to adjust the suspension height to the target height and the damper pressure to the target pressure, thus adjusting the suspension in real time to provide the driver with a safe, comfortable, and precise state.

[0086] Figure 3 This is a flowchart of another suspension control method provided according to an embodiment of the present invention.

[0087] In practice, the system pre-acquires driving information from multiple vehicles, and uses big data calculations to determine the reference height and reference pressure at each location. It also acquires user information from multiple drivers and collects relevant vehicle data (including vehicle speed, acceleration, rapid acceleration, rapid deceleration, etc.) during vehicle operation. Based on this data, it determines driving habit information, and then uses the user information and driving habit information of each driver to determine their respective driving habit coefficients. Based on these coefficients, the electronically controlled damping module adjusts the reference height and reference pressure to obtain the target height and target pressure. The suspension height is adjusted based on the target height, and the damper pressure is adjusted based on the target pressure. As an example, relevant vehicle information can be collected by sensors and transmitted to the electronically controlled damping module in the form of TBOX signal data.

[0088] When the user selects map navigation, the system retrieves road condition information or suspension status information for existing routes from the database in advance. This information is then combined with the user information and driving habits left when the user logged into the vehicle's infotainment system (if it is in guest mode, the suspension is adjusted according to the guest's memory position; if it is the first time a guest logs in, the system's default settings are used). This ensures that road condition information (or suspension status information for each location on the route), user information, and driving habits all serve as influencing factors for the circuit board processing signals of the electronically controlled damping module in the vehicle, thereby adjusting the suspension height and damper pressure.

[0089] Without the user using map navigation, the system first obtains the vehicle's location information in real time based on the vehicle's positioning system. If the distance between the vehicle's location and the latitude and longitude of a certain road surface is less than 0.1 meters, the system retrieves the road condition information or the suspension status information corresponding to that location. Then, it combines the user information and driving habit information left when the user logged into the vehicle's system (if it is a guest mode, the suspension is adjusted according to the guest's memory location; if it is the first time a guest logs in, the system's default settings are used). This allows the circuit board of the electronically controlled damping module to calculate the target height and target pressure based on the road condition information (or the suspension status information at each location along the route), user information, and driving habit information, and then adjust the suspension height and damper pressure accordingly.

[0090] Figure 4 This is a schematic diagram of a suspension control device according to an embodiment of the present invention. The device may include:

[0091] The determination module 401 is configured to acquire the vehicle's position information and determine the reference height and reference pressure based on the position information;

[0092] The adjustment module 402 is configured to acquire the driver's driving habit coefficient and adjust the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure;

[0093] The control module 403 is configured to control the suspension to adjust the height between the vehicle body and the wheels to a target height and to adjust the pressure of the suspension dampers to a target pressure.

[0094] According to one embodiment of the present invention, the determining module 401 is further configured to:

[0095] The reference height and reference pressure corresponding to the position information are determined from the preset correspondence. The reference height is the height of the suspension when the vehicle is traveling at the position indicated by the position information, and the reference pressure is the pressure of the damper when the vehicle is traveling at the position.

[0096] According to one embodiment of the present invention, the determining module 401 is further configured to:

[0097] Acquire historical driving information of multiple vehicles at different locations. The historical driving information includes the suspension height and damper pressure of each vehicle when driving at different locations.

[0098] Determine the mode of height and the mode of pressure based on the suspension height and damper pressure of multiple vehicles traveling at any position.

[0099] The mode of height is determined as the reference height of the vehicle when it is in position, and the mode of pressure is determined as the reference pressure of the vehicle when it is in position.

[0100] Establish and store the correspondence between the location information of each location and the reference height and reference pressure.

[0101] According to one embodiment of the present invention, the determining module 401 is configured to:

[0102] The system acquires road condition information for the location indicated by the location information, and determines the reference height and reference pressure corresponding to the road condition information. The reference height is the height of the suspension when the vehicle is traveling on the road surface corresponding to the road condition information, and the reference pressure is the pressure of the damper when the vehicle is traveling on the road surface corresponding to the road condition information.

[0103] According to one embodiment of the present invention, the adjustment module 402 is further configured to:

[0104] If the driving habit coefficient is less than the first preset threshold, the reference height is lowered to obtain the target height, and the reference pressure is increased to obtain the target pressure.

[0105] If the driving habit coefficient is equal to the first preset threshold, the reference height and reference pressure remain unchanged.

[0106] According to one embodiment of the present invention, the adjustment module 402 is further configured to:

[0107] If the driving habit coefficient is greater than the second preset threshold, the reference height is increased to obtain the target height, and the reference pressure is decreased to obtain the target pressure.

[0108] According to one embodiment of the present invention, the adjustment module 402 is further configured to:

[0109] Facial recognition is used to identify drivers and obtain their user information and driving habits.

[0110] Based on user information and driving habit information, determine the driver's driving habit coefficient.

[0111] According to one embodiment of the present invention, the user information includes at least age and gender, and the driving habit information includes at least the number of times the driver accelerates rapidly, the number of times the driver decelerates rapidly, the number of times the driver takes high-speed corners, the number of times the driver drives at high speed, the average vehicle speed, and the maximum vehicle speed within a preset time period.

[0112] According to one embodiment of the present invention, the determining module 401 is further configured to:

[0113] When using map navigation, the navigation route is obtained in advance based on the origin and destination, and the vehicle's position on the navigation route is determined.

[0114] Locate the vehicle's position while it is in motion, without using map navigation.

[0115] By applying the suspension control method provided in this invention, the optimal suspension height and optimal damper pressure used by most vehicles when running in different positions can be obtained in advance. Based on the vehicle's position information, the reference height and reference pressure used by most vehicles at that position can be obtained. Then, based on the driver's driving habits and the vehicle's travel conditions, the suspension and damper can be adjusted to reduce the situation of untimely or inappropriate suspension adjustment, improve the accuracy and timeliness of suspension adjustment, and enhance vehicle comfort and driving satisfaction.

[0116] The above is a schematic embodiment of a suspension control device according to an embodiment of the present invention. It should be noted that the technical solution of this suspension control device and the technical solution of the above-described suspension control method belong to the same concept. Details not described in detail in the technical solution of the suspension control device can be found in the description of the technical solution of the above-described suspension control method.

[0117] Figure 5 This is a schematic diagram of a computing device according to an embodiment of the present invention. The computing device 500 includes: a memory 501, a processor 502, and a computer program stored in the memory 501 and executable on the processor 502. When the processor 502 executes the computer program, it implements a suspension control method as provided in any of the above embodiments.

[0118] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a suspension control method as proposed in any of the above embodiments.

[0119] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples of computer-readable media (a non-exhaustive list) include: electrical connections (electronic devices) having one or more wires, portable computer disks (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0120] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0121] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0122] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0123] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0124] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A suspension control method, characterized in that, The method includes: Obtain the vehicle's location information and determine the reference height and reference pressure based on the location information; The driver's driving habit coefficient is obtained, and the reference height and reference pressure are adjusted according to the driving habit coefficient to obtain the target height and target pressure; The control suspension adjusts the height between the vehicle body and the wheels to the target height, and adjusts the pressure of the suspension dampers to the target pressure; Before determining the reference height and reference pressure based on the location information, the method further includes: Acquire historical driving information of multiple vehicles at different locations, wherein the historical driving information includes the suspension height and damper pressure of each vehicle when driving at different locations; Determine the mode of height and the mode of pressure based on the suspension height and damper pressure of multiple vehicles traveling at any position. The mode of the height is determined as the reference height when the vehicle is traveling at the position, and the mode of the pressure is determined as the reference pressure when the vehicle is traveling at the position. Establish and store the correspondence between the location information of each location and the reference height and reference pressure.

2. The method according to claim 1, characterized in that, Determining the reference height and reference pressure based on the location information includes: The reference height and reference pressure corresponding to the position information are determined from the preset correspondence, wherein the reference height is the height of the suspension when the vehicle is traveling at the position indicated by the position information, and the reference pressure is the pressure of the damper when the vehicle is traveling at that position.

3. The method according to claim 1, characterized in that, Determining the reference height and reference pressure based on the location information includes: Obtain road condition information for the location indicated by the location information, and determine the reference height and reference pressure corresponding to the road condition information, wherein the reference height is the height of the suspension when the vehicle is traveling on the road surface corresponding to the road condition information, and the reference pressure is the pressure of the damper when the vehicle is traveling on the road surface corresponding to the road condition information.

4. The method according to claim 1, characterized in that, The step of adjusting the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure includes: If the driving habit coefficient is less than the first preset threshold, the reference height is reduced to obtain the target height, and the reference pressure is increased to obtain the target pressure. If the driving habit coefficient is equal to the first preset threshold, the reference height and reference pressure remain unchanged.

5. The method according to claim 1 or 4, characterized in that, The step of adjusting the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure includes: If the driving habit coefficient is greater than the second preset threshold, the reference height is increased to obtain the target height, and the reference pressure is decreased to obtain the target pressure.

6. The method according to claim 1 or 4, characterized in that, The acquisition of the driver's driving habit coefficient includes: Facial recognition is performed on the driver to obtain the driver's user information and driving habit information; Based on the user information and the driving habit information, the driver's driving habit coefficient is determined.

7. The method according to claim 6, characterized in that, The user information includes at least age and gender, and the driving habit information includes at least the number of times the driver accelerated rapidly, decelerated rapidly, took high-speed corners, drove at high speeds, averaged speed, and maximum speed within a preset time period.

8. The method according to claim 1, characterized in that, The acquisition of vehicle location information includes: When using map navigation, the navigation route is obtained in advance based on the origin and destination, and the position of the vehicle in the navigation route is determined. Locate the vehicle's position while it is in motion, without using map navigation.

9. A suspension control device, characterized in that, The device includes: The determination module is configured to acquire the vehicle's position information and determine a reference height and a reference pressure based on the position information; The adjustment module is configured to acquire the driver's driving habit coefficient and adjust the reference height and reference pressure according to the driving habit coefficient to obtain the target height and target pressure; The control module is configured to control the suspension to adjust the height between the vehicle body and the wheels to the target height, and to adjust the pressure of the suspension dampers to the target pressure; Before determining the reference height and reference pressure based on the location information, the method further includes: Acquire historical driving information of multiple vehicles at different locations, wherein the historical driving information includes the suspension height and damper pressure of each vehicle when driving at different locations; Determine the mode of height and the mode of pressure based on the suspension height and damper pressure of multiple vehicles traveling at any position. The mode of the height is determined as the reference height when the vehicle is traveling at the position, and the mode of the pressure is determined as the reference pressure when the vehicle is traveling at the position. Establish and store the correspondence between the location information of each location and the reference height and reference pressure.

10. A computing device, characterized in that, include: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the suspension control method as described in any one of claims 1-8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the suspension control method as described in any one of claims 1-8.

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