Information prompting method, device, equipment, medium, computer program product and system

Abstract

The invention provides an information prompting method, device and equipment, a medium, a computer program product and a system, and relates to the technical field of intelligent driving. The method comprises the steps that the dynamic gravity center position of a vehicle is calculated based on current comprehensive load information of the vehicle; the comprehensive load information is determined based on the load information of each preset detection position in the vehicle; determining a center-of-gravity shift index of the vehicle based on the dynamic center-of-gravity position and a reference center-of-gravity position of the vehicle; the center-of-gravity shift index is determined based on the offsets of the dynamic center-of-gravity position and the reference center-of-gravity position in different directions; driving prompt information is generated and fed back based on the center-of-gravity shift index; the driving prompt information is used for prompting a user to adjust a load distribution mode of the vehicle, and the load distribution mode minimizes the center-of-gravity shift index. According to the invention, the driving safety of the vehicle can be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent driving, and in particular to an information prompting method, device, equipment, medium, computer program product and system. BACKGROUND

[0002] In vehicle driving, the weight state is a key factor affecting the handling performance, driving stability and driving safety. The weight change caused by the passengers, luggage loading and temporary article stacking will directly affect the vehicle body posture and wheel load distribution.

[0003] At present, some vehicles are equipped with a load detection system, which usually senses the load weight by arranging sensors on the seats or chassis, and sends an overload warning to the user when detecting that the load is overloaded. This kind of system mainly focuses on whether the total weight exceeds the safety threshold.

[0004] However, in actual application, even if the total weight of the vehicle meets the safety standard, it may cause the handling performance of the vehicle to decrease, and the above system cannot prompt such situation, thereby having a defect of not being conducive to ensuring driving safety. SUMMARY

[0005] The present application provides an information prompting method, device, equipment, medium, computer program product and system to ensure the driving safety of a vehicle.

[0006] In a first aspect, the present application provides an information prompting method, which comprises:

[0007] calculating a dynamic center of gravity position of the vehicle based on current comprehensive load information of the vehicle; the comprehensive load information is determined based on load information of each preset detection position in the vehicle;

[0008] determining a center of gravity deviation index of the vehicle based on the dynamic center of gravity position and a reference center of gravity position of the vehicle; the center of gravity deviation index is determined based on the offset amount of the dynamic center of gravity position and the reference center of gravity position in different directions;

[0009] generating and feeding back driving prompt information based on the center of gravity deviation index; the driving prompt information is used to prompt the user to adjust the load distribution mode of the vehicle, and the load distribution mode minimizes the center of gravity deviation index.

[0010] In a possible implementation, the driving prompt information comprises at least one of visual prompt, auditory prompt or tactile prompt; and / or, the driving prompt information comprises prompt information suggesting to adjust the seat position, the luggage placement position or the member seating position.

[0011] In a possible implementation, the generating and feeding back of the driving prompt information based on the center of gravity offset index comprises:

[0012] obtaining at least one to-be-confirmed load distribution mode;

[0013] determining a target load distribution mode from the at least one to-be-confirmed load distribution mode according to a center of gravity offset index corresponding to the to-be-confirmed load distribution mode, wherein the center of gravity offset index of the target load distribution mode is the smallest;

[0014] generating and feeding back the driving prompt information based on the target load distribution mode.

[0015] In a possible implementation, the determining of the center of gravity offset index of the vehicle based on the dynamic center of gravity position and the reference center of gravity position of the vehicle comprises:

[0016] determining offset amounts in respective directions based on the dynamic center of gravity position and the reference center of gravity position of the vehicle;

[0017] obtaining the center of gravity offset index based on the offset amounts in the respective directions and geometric parameters of the vehicle.

[0018] In a possible implementation, the generating and feeding back of the driving prompt information based on the center of gravity offset index comprises:

[0019] determining a preset index interval to which the center of gravity offset index belongs;

[0020] generating driving prompt information for prompting at a prompt level corresponding to the preset index interval according to the prompt level corresponding to the preset index interval, wherein the greater an endpoint value of the preset index interval is, the higher the prompt level is, and the higher the warning strength of the corresponding driving prompt information or the definiteness of the adjustment suggestion is.

[0021] In a possible implementation, the driving prompt information is further used to prompt a user to adjust a driving mode of the vehicle, and the method further comprises:

[0022] generating driving prompt information containing a driving mode suggestion corresponding to the preset index interval to which the center of gravity offset index belongs according to the preset index interval, wherein the driving mode suggestion comprises a prompt or a suggestion that a specific driving mode is not recommended to be started.

[0023] In a possible implementation, the driving prompt information is further used to prompt safety warning information, and the generating and feeding back of the driving prompt information based on the center of gravity offset index comprises:

[0024] obtaining driving state information of the vehicle;

[0025] generate driving prompt information containing the safety warning information based on the center of gravity offset index and the driving state information.

[0026] In a possible implementation, the driving state information includes lateral acceleration; and the generating of the driving prompt information containing the safety warning information based on the center of gravity offset index and the driving state information includes:

[0027] when the absolute value of the lateral offset indicated by the center of gravity offset index is greater than a first threshold value, and the absolute value of the lateral acceleration is greater than a second threshold value, the driving prompt information containing the safety warning information indicating that there is a roll comfort risk is generated.

[0028] In a possible implementation, the driving state information includes a position change state of an occupant in the vehicle; and the generating of the driving prompt information containing the safety warning information based on the center of gravity offset index and the driving state information includes:

[0029] when it is detected that the position of the occupant changes during driving of the vehicle, and the change amount of the center of gravity offset index during the change is greater than a preset change amount, the driving prompt information containing the safety warning information indicating that there is an occupant movement risk is generated.

[0030] In a possible implementation, the calculating of the dynamic center of gravity position of the vehicle based on current comprehensive load information of the vehicle includes:

[0031] determining total load information of the vehicle according to the comprehensive load information and vehicle empty load information;

[0032] determining a target detection position from each of the preset detection positions;

[0033] calculating the dynamic center of gravity position according to coordinate information and load information corresponding to each of the target detection positions, and the total load information of the vehicle.

[0034] In a second aspect, the present application provides an information prompting device, the device includes:

[0035] a calculating module configured to calculate a dynamic center of gravity position of the vehicle based on current comprehensive load information of the vehicle; the comprehensive load information is determined based on load information of each preset detection position in the vehicle;

[0036] a determining module configured to determine a center of gravity offset index of the vehicle based on the dynamic center of gravity position and a reference center of gravity position of the vehicle; the center of gravity offset index is determined based on offset amounts of the dynamic center of gravity position and the reference center of gravity position in different directions;

[0037] a feedback module configured to generate and feed back driving prompt information based on the center of gravity offset index; the driving prompt information is used to prompt a user to adjust a load distribution mode of the vehicle, and the load distribution mode is used to minimize the center of gravity offset index.

[0038] In a third aspect, the present application provides an electronic device, comprising at least one processor, and a memory connected to the processor in communication;

[0039] The memory stores computer-executable instructions.

[0040] The at least one processor executes the computer-executable instructions stored in the memory to implement the method according to any one of the first aspect.

[0041] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by a processor to implement the method according to any one of the first aspect.

[0042] In a fifth aspect, the present application provides a computer program product, comprising a computer program, and the computer program is executed by a processor to implement the method according to any one of the first aspect.

[0043] In a sixth aspect, the present application provides an information prompting system, comprising an electronic device, and a sensing device and a display device; the electronic device acquires comprehensive load information through the sensing device, and implements the information prompting method according to any one of the first aspect based on the comprehensive load information, and is further configured to feed back the driving prompt information through the display device.

[0044] In a seventh aspect, the present application provides a vehicle, comprising the information prompting system according to the sixth aspect.

[0045] The present application provides an information prompting method, device, equipment, medium, computer program product and system, which are used to feed back intelligent driving prompt information by combining the current center of gravity offset index, and are used to adjust the load distribution mode of the vehicle to ensure the safety of the vehicle driving. Specifically, in the information prompting method of the present application, the dynamic center of gravity position of the vehicle is calculated based on the current comprehensive load information of the vehicle, the current center of gravity offset index of the vehicle is determined based on the dynamic center of gravity position and the reference center of gravity position, and then the driving prompt information is generated and fed back based on the center of gravity offset index. In this process, the driving prompt information is used to prompt the user to adjust the load distribution mode of the vehicle, and the load distribution mode is used to minimize the center of gravity offset index. Based on this setting, the user can control the center of gravity offset of the vehicle within a reasonable range by adjusting the load distribution, reduce the problems of decreased control performance and increased risk of rolling caused by the center of gravity offset, and thus the driving safety of the vehicle is ensured. Attached Figure Description

[0046] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0047] Figure 1 A schematic diagram illustrating the application scenario of the information prompting method provided in this application;

[0048] Figure 2 Flowchart of the information prompting method provided in this application Figure 1 ;

[0049] Figure 3 A schematic diagram illustrating the principle of the vehicle coordinate system and center of gravity definition provided in this application;

[0050] Figure 4 Flowchart of the information prompting method provided in this application Figure 2 ;

[0051] Figure 5 Flowchart of the information prompting method provided in this application Figure 3 ;

[0052] Figure 6 A schematic diagram of the information display device provided in this application;

[0053] Figure 7 A schematic diagram of the structure of the electronic device provided in this application;

[0054] Figure 8 A schematic diagram of the information prompting system provided in this application.

[0055] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0056] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0057] During the driving process, the weight state of the vehicle is a key factor affecting its handling performance, driving stability and driving safety. Whether it is the seating situation of the passengers during daily commuting, the total amount of luggage during long-distance travel, or the stacking of temporary items, the overall weight change of the vehicle will directly affect the vehicle body posture and wheel load distribution.

[0058] For example, weight exceeding the safe range will cause steering response delay, aggravate the nodding phenomenon of the vehicle body during braking, and reduce the ability to resist crosswinds during high-speed driving. At the same time, for electric vehicles, unreasonable weight loading may also cause uneven loading of the battery pack, indirectly reducing energy conversion efficiency and increasing unnecessary energy consumption loss. Therefore, effective monitoring and management of the weight of the vehicle is an important basis for ensuring the comprehensive performance and driving safety of the vehicle

[0059] Currently, some vehicles are equipped with a basic weight monitoring system. The weight monitoring system usually senses the seating state of the passengers by arranging pressure sensors under the seats, detects the total load by arranging weight sensors on the chassis or trunk, and finally realizes real-time monitoring of the total weight of the vehicle. Its main function focuses on overload warning. Specifically, when the system detects that the total weight of the vehicle exceeds the rated threshold set at the factory (such as the rated load of a family car being 375kg-500kg), the user is reminded to reduce the load through the instrument panel warning light, the text prompt on the central control screen or the voice broadcast. In addition, a small number of systems will further combine seat pressure sensors to supplement basic safety prompts such as not wearing seat belts.

[0060] However, in actual application, even if the total weight of the vehicle meets the safety standard, it may still cause the handling performance of the vehicle to decrease, and the above-mentioned system cannot provide a prompt for such a situation, thereby having a defect of not being conducive to ensuring driving safety.

[0061] Therefore, the present application provides an information prompting method, device, equipment, medium, computer program product and system to solve the above-mentioned problems. The method of the present application proposes to combine the current center of gravity deviation index to feed back the corresponding intelligent driving prompt information. Specifically, the method of the present application calculates the dynamic center of gravity position of the vehicle based on the current comprehensive load information of the vehicle, determines the current center of gravity deviation index of the vehicle based on the dynamic center of gravity position and the reference center of gravity position, and then generates and feeds back the driving prompt information based on the center of gravity deviation index.

[0062] It can be understood that the information prompting method of the present application can be applied to any vehicle. As an example, Figure 1 The application scenario diagram of the information prompting method provided by the present application is shown in Figure 1 As shown, the information prompting method of the present application can be executed by a vehicle controller.

[0063] Specifically, the vehicle controller calculates the dynamic center of gravity position of the vehicle based on the current comprehensive load information of the vehicle, then determines the current center of gravity deviation index of the vehicle based on the dynamic center of gravity position and the reference center of gravity position, and finally generates and feeds back driving prompt information to the center control screen of the vehicle based on the center of gravity deviation index.

[0064] Through the above arrangement, the user can intuitively obtain the driving prompt related to the center of gravity deviation (such as the prompt: the load on the left side of the trunk is too heavy, it is suggested to adjust the position of the luggage) through the center control screen, and timely adjust the load distribution of the vehicle to reduce the risk of center of gravity deviation, effectively improve the vehicle handling performance and driving stability, and make up for the defect that the known technology can only monitor the total weight and cannot prompt the center of gravity deviation problem, and further technically guarantee the driving safety of the vehicle.

[0065] It should be understood that for the above scene examples, the vehicle controller can also feed back driving prompt information to the user terminal of the user in the vehicle, or the vehicle controller can also directly feed back driving prompt information to the corresponding actuator of the vehicle, which is not limited in the embodiment.

[0066] In addition, it should be understood that in addition to the above vehicle scene, the information prompting method of the present application can also be used in any scene that can guarantee the driving / sailing / flying safety and control stability through load distribution optimization, such as ships, airplanes, etc., which is not limited in the embodiment.

[0067] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present application will be described below with electronic devices as the execution subject and taking any vehicle as an example, combined with the drawings.

[0068] The embodiment provides an information prompting method, Figure 2 The flowchart of the information prompting method provided by the present application Figure 1 As shown in the figure, Figure 2 The method of the embodiment includes:

[0069] S201, based on the current comprehensive load information of the vehicle, calculating the dynamic center of gravity position of the vehicle.

[0070] The comprehensive load information is determined based on the load information of each preset detection position in the vehicle.

[0071] In this embodiment, the electronic device first determines the total load information of the vehicle according to the comprehensive load information and the vehicle empty load information. Then, the electronic device determines the target detection positions from the preset detection positions, and calculates the dynamic barycenter position according to the coordinate information corresponding to each target detection position, the load information, and the comprehensive load information.

[0072] Specifically, in this embodiment, the electronic device determines the preset detection positions with the pressure values indicated by the load information being non-zero as the target detection positions, and the coordinate information corresponding to the target detection positions is obtained based on the preset vehicle coordinate system.

[0073] More specifically, Figure 3 The principle diagram for defining the vehicle coordinate system and the barycenter in this application is shown in FIG. 1. Figure 3 As shown in (1) and (2) in FIG. 1, in this embodiment, the reference barycenter position of the vehicle is taken as the coordinate origin, the length direction of the vehicle is taken as the x-axis, the width direction of the vehicle is taken as the y-axis, the direction perpendicular to the ground is taken as the z-axis, the forward direction of the vehicle is taken as the positive direction of the x-axis, the side of the vehicle away from the driver is taken as the positive direction of the y-axis, and the direction away from the ground is taken as the positive direction of the z-axis, to establish the preset vehicle coordinate system.

[0074] On this basis, in this embodiment, the center positions of the seats are configured as the preset detection positions, and based on the above-mentioned vehicle coordinate system, the coordinate information of each preset detection position can be obtained: (x1, y1, z1), (x2, y2, z2), (x3, y3, z3), (x4, y4, z4). In this embodiment, the coordinate information of each position is stored as vehicle configuration information, and based on this setting, the electronic device can obtain the coordinate information of the corresponding position through the vehicle configuration information.

[0075] It should be understood that in actual applications, the width direction of the vehicle can also be taken as the x-axis, and the length direction of the vehicle can also be taken as the y-axis. Similarly, the positive direction and the negative direction of each coordinate axis can also be defined in other ways, and a two-dimensional vehicle coordinate system can also be established. In this embodiment, this is not limited, as long as the coordinate information of each preset detection position and the reference barycenter position is obtained based on the same vehicle coordinate system. In addition, in actual applications, the middle positions of the trunk or adjacent seats can also be configured as the preset detection positions, which are not limited in this embodiment.

[0076] In this embodiment, the vehicle is provided with a vehicle-mounted weight sensing system, which includes a plurality of pressure sensors. Specifically, at least one pressure sensor is provided at each preset detection position, and the pressure sensors corresponding to each preset detection position constitute the vehicle-mounted weight sensing system. The electronic device obtains the load information of each preset detection position by interacting with the vehicle-mounted weight sensing system.

[0077] More specifically, in the embodiment, at least two pressure sensors are arranged at each preset detection position, and the load information of the preset detection position is obtained by averaging the pressure values output by the at least two pressure sensors. In actual application, only one pressure sensor can be arranged at each preset detection position, and the pressure value output by the pressure sensor is taken as the load information of the preset detection position, which is not limited in the embodiment.

[0078] Based on the above setting, in the embodiment, when determining the current dynamic center of gravity position, the electronic device first acquires the load information corresponding to each preset detection position through the vehicle-mounted weight sensing system, and sums the pressure values indicated by the load information to obtain comprehensive load information. Then, the target detection position with a non-zero pressure value is determined from the load information of each preset detection position, and the coordinate information of the target detection position is acquired from the vehicle configuration information. In addition, the vehicle empty load information is also acquired from the vehicle configuration information, and the total load information of the vehicle is determined according to the vehicle empty load information and the comprehensive load information. Finally, the total load information of the vehicle, the coordinate information and the load information of the target detection position are substituted into the following formula to obtain the current dynamic center of gravity position: CG = (x_CG, y_CG, z_CG) = (1 / M) ∑(mi xi, mi yi, mi zi).

[0079] In the above formula, CG represents the dynamic center of gravity position, x_CG, y_CG, and z_CG represent the coordinate information thereof, M represents the total load information of the vehicle, mi represents the load information corresponding to the i-th target detection position, and xi, yi, and zi represent the coordinate information of the i-th target detection position.

[0080] It should be understood that, in actual application, the electronic device can also take the preset detection position with a pressure value greater than a preset threshold as the target detection position, and the preset threshold is a smaller value, which is not limited in the embodiment.

[0081] In the embodiment, by accurately screening the target detection position with load from each preset detection position, and combining the coordinate information and load information to calculate the dynamic center of gravity position, the distribution characteristics of the vehicle preset detection position can be fully utilized, the load data participating in the calculation can be ensured to be effective load, the interference of the no-load position on the calculation result can be avoided, and the calculation accuracy of the dynamic center of gravity position is improved. At the same time, the coordinate information based on the unified vehicle coordinate system is quantitatively calculated, the numerical representation of the dynamic center of gravity position is more objective and consistent, a reliable foundation is laid for the accurate judgment of the center of gravity deviation index, and then the accuracy and effectiveness of the driving prompt information are ensured, and finally the fine monitoring and management of the vehicle load distribution state are realized.

[0082] In the embodiment, the electronic device determines the center of gravity deviation index based on the coordinate information of the dynamic center of gravity position and the coordinate information of the reference center of gravity position of the vehicle. The coordinate information of the dynamic center of gravity position is obtained based on the foregoing calculation process, and the coordinate information of the reference center of gravity position is the center of mass coordinates when the vehicle is empty, which is obtained through the vehicle configuration information.

[0083] In the embodiment, the center of gravity deviation index is determined based on the offset amount of the dynamic center of gravity position and the reference center of gravity position in different directions.

[0084] In the embodiment, the electronic device determines the center of gravity deviation index based on the coordinate information of the dynamic center of gravity position and the coordinate information of the reference center of gravity position of the vehicle. The coordinate information of the dynamic center of gravity position is obtained based on the foregoing calculation process, and the coordinate information of the reference center of gravity position is the center of mass coordinates when the vehicle is empty, which is obtained through the vehicle configuration information.

[0085] Specifically, in the embodiment, the electronic device first determines the offset amount in each direction based on the dynamic center of gravity position and the reference center of gravity position of the vehicle, and then obtains the center of gravity deviation index based on the offset amount in each direction and the geometric parameters of the vehicle.

[0086] In the embodiment, the directions include three directions of x-axis, y-axis and z-axis. The electronic device obtains the center of gravity deviation in each direction by calculating the coordinate difference of the dynamic center of gravity position and the reference center of gravity position on the corresponding coordinate axis. The x-axis direction offset amount δx=x_CG-x0, the y-axis direction offset amount δy=y_CG-y0, and the z-axis direction offset amount δz=z_CG-z0, wherein (x0, y0, z0) is the coordinate information of the reference center of gravity position, and (x_CG, y_CG, z_CG) is the coordinate information of the dynamic center of gravity position.

[0087] In the embodiment, the geometric parameters of the vehicle include the length of the vehicle, the wheel track of the vehicle, and the suspension allowed center of gravity vertical displacement range. It should be understood that the geometric parameters of the vehicle are also obtained through the vehicle configuration information.

[0088] Further, as a possible implementation manner, the dimensionless center of gravity offset index can be obtained by performing square sum operation on the ratio of each direction offset to the corresponding geometric parameter, and the calculation formula is: center of gravity offset index = (δx / Lx) 2 +(δy / Ly) 2 +(δz / Lz) 2 . Wherein, Lx is the reference length parameter in the x-axis direction (based on the vehicle length), Ly is the reference width parameter in the y-axis direction (based on the vehicle wheelbase), and Lz is the reference vertical parameter in the z-axis direction (i.e. the suspension allows the vertical displacement range of the center of gravity).

[0089] As an example, assuming that the vehicle length L_car = 4.5m, the wheelbase W = 1.6m, and the suspension allows the vertical displacement range of the center of gravity Lz = 0.08m. Take Lx = 0.45L_car = 2.025m, Ly = 0.45W = 0.72m. If the calculation result is δx = 0.3m, δy = 0.15m, and δz = 0.02m, then the center of gravity offset index = (0.3 / 2.025) 2 +(0.15 / 0.72) 2 +(0.02 / 0.08) 2 ≈0.022+0.043+0.062 = 0.127, and the value can be used to quantitatively evaluate the comprehensive degree of the center of gravity offset.

[0090] In actual application, the sum can also be realized by assigning different weights to each direction offset ratio, such as: center of gravity offset index = a (δx / Lx)²+b (δy / Ly)²+c (δz / Lz)², wherein a, b, and c are weight coefficients based on the vehicle characteristics, and a+b+c = 1, which is not limited in the embodiment.

[0091] In the embodiment, by first splitting the center of gravity offset in each direction, and then converting the offset into a dimensionless center of gravity offset index combined with the vehicle geometric parameters, the quantitative evaluation of the center of gravity offset state of the vehicle can be realized. Compared with the qualitative description of the offset degree, this method can accurately reflect the comprehensive influence of the offset through specific numerical values, avoiding subjective judgment errors. At the same time, multiple calculation methods such as square sum operation and weighted sum operation can be supported, which can not only adapt to the geometric characteristic differences of different vehicle models (such as cars and SUVs), but also meet the evaluation focus needs of offset risk in different scenarios (such as long-distance freight focusing on y-axis lateral offset, which can increase the Ly-related weight), ultimately providing a reliable basis for subsequent generation of accurate driving prompt information, and effectively improving the flexibility and practicality of vehicle load management.

[0092] S203, generate and feedback the driving prompt information based on the center of gravity offset index.

[0093] The driving prompt information is used to prompt the user to adjust the load distribution mode of the vehicle, and the load distribution mode minimizes the center of gravity offset index.

[0094] Specifically, in the embodiment, the electronic device first acquires at least one to-be-confirmed load distribution mode; then determines a target load distribution mode from the at least one to-be-confirmed load distribution mode according to the center of gravity offset index corresponding to the to-be-confirmed load distribution mode; and finally generates and feeds back the driving prompt information based on the target load distribution mode. The center of gravity offset index of the target load distribution mode is the smallest.

[0095] More specifically, as one possible implementation, the embodiment determines the target load distribution mode by combining an exhaustive method with a heuristic algorithm. The electronic device first exhaustively lists load adjustment schemes in a preset range based on the current load distribution state (such as exchanging passengers between different seats, moving the position of luggage in the trunk, etc.), and then uses a heuristic algorithm (such as simulated annealing algorithm) to quickly calculate and screen the center of gravity offset index corresponding to each scheme, preferentially retains the schemes with smaller index, and iteratively optimizes, to finally determine the target load distribution mode with the smallest center of gravity offset index.

[0096] In actual application, the electronic device can also use model prediction method to determine the target load distribution mode, directly predict the center of gravity offset index under different adjustment modes through the trained load distribution model, and then screen out the optimal scheme, which is not limited in the embodiment.

[0097] In addition, in actual application, the electronic device can also use rule base matching method to match the current center of gravity offset feature with the typical offset scenes and corresponding optimal adjustment strategies stored in the preset rule base, to quickly acquire the target load distribution mode. Alternatively, the embodiment does not limit the combination of the vehicle driving state to generate the distribution mode.

[0098] In the embodiment, by screening the target load distribution mode with the smallest center of gravity offset index based on the index and generating the driving prompt information, accurate and operable load adjustment guidance can be provided for the user, the user can effectively improve the center of gravity offset problem without professional knowledge, the driving risk caused by unreasonable load distribution is reduced from the aspect of active intervention, the convenience and effectiveness of the user in load management of the vehicle are improved through the explicit prompt information, and the control performance and driving stability of the vehicle are further optimized.

[0099] In addition, in the embodiment, the driving prompt information includes at least one of visual prompt, auditory prompt or tactile prompt; and / or, the driving prompt information includes prompt information for suggesting adjustment of seat position, luggage placement position or member seating position.

[0100] As an example, when the system detects that the y-axis direction offset is too large, a visual prompt is realized based on the central control screen. Specifically, the central control screen displays the driving prompt information "The left luggage is too heavy, it is recommended to move the right luggage to the left side to balance the weight", and at the same time, an auditory prompt is realized through the vehicle audio. Specifically, the vehicle audio plays a "ding-dong" prompt sound. If the x-axis direction offset is detected to be out of range, a slight vibration of the steering wheel (realizing a tactile prompt) is realized in combination with voice broadcast "The rear load is concentrated, it is recommended that one passenger move to the front row".

[0101] In the method provided by the embodiment of the present application, the comprehensive load information is first determined based on the load information of each preset detection position in the vehicle, then the dynamic center of gravity position of the vehicle is calculated according to the comprehensive load information, subsequently the center of gravity offset index is determined in combination with the dynamic center of gravity position and the reference center of gravity position of the vehicle, and finally the driving prompt information for prompting the user to adjust the load distribution mode is generated and fed back based on the center of gravity offset index.

[0102] Through the method of the embodiment, on the one hand, the accurate perception and quantitative evaluation of the dynamic center of gravity position of the vehicle are realized, and the potential risk of total weight but center of gravity offset can be identified. On the other hand, by generating targeted driving prompt information, the user is provided with an operable load distribution mode, so as to avoid the user from being unable to optimize the load distribution due to lack of professional knowledge, and actively reduce the risk of operation caused by center of gravity offset. In addition, the method of the embodiment relies on the existing configuration of the vehicle, and takes into account the technical feasibility and cost economy, so it can be widely adapted to different types of vehicles, and can simultaneously improve the vehicle driving safety, operation stability and user convenience.

[0103] In addition, in the embodiment, the electronic device is configured with a preset load threshold. After calculating the total load information of the vehicle based on the comprehensive load information and the vehicle empty load information, the electronic device compares the total load information of the vehicle with the preset load threshold, and when the pressure value indicated by the total load information of the vehicle exceeds the pressure value indicated by the preset load threshold, an overload prompt is performed.

[0104] The present application also provides an embodiment of an information prompting method for detailing the specific way of generating driving prompt information. Figure 4 The flowchart of the information prompting method provided by the present application Figure 2 As shown in Figure 4 The method of the embodiment includes:

[0105] S401, determining a preset index interval to which the center of gravity offset index belongs.

[0106] S402, generating driving prompt information for prompting at a corresponding prompt level according to the prompt level corresponding to the preset index interval.

[0107] The greater the end point value of the preset index interval is, the higher the prompt level is, and the higher the warning intensity of the driving prompt information or the definiteness of the adjustment suggestion is.

[0108] In the embodiment, the electronic device is configured with a plurality of preset index intervals, and different prompt levels are configured for each preset index interval. The prompt level corresponding to the preset index interval with a greater end point value is higher. Then, a mapping relationship between the preset index intervals and the prompt levels is established. It should be understood that the end point values of the preset index intervals should be the end point values on the same side, i.e., the upper limit value or the lower limit value of the uniform comparison interval.

[0109] For example, the preset index intervals can be divided into: [0, 0.3), [0.3, 0.45), [0.45, 0.65), [0.65, +∞), and the corresponding prompt levels are first-level prompt (extremely small deviation), second-level prompt (slight deviation), third-level prompt (moderate deviation), and fourth-level prompt (severe deviation), respectively. The end point values of each interval increase as the prompt level increases, and the end point values of adjacent intervals are continuous and connected, ensuring that any barycentric deviation index can match a unique interval.

[0110] Based on this, after calculating the barycentric deviation index, the electronic device matches the corresponding preset index interval according to the barycentric deviation index, and obtains the corresponding prompt level according to the mapping relationship, and generates the driving prompt information according to the prompt level.

[0111] For example, if the calculated barycentric deviation index is 0.25, which belongs to the preset index interval [0, 0.3), it is determined that the deviation is extremely small, and no prompt information is generated. If the barycentric deviation index is 0.38, which belongs to the preset index interval [0.3, 0.45), corresponding to a low-level prompt for slight deviation, the central control screen displays a text prompt of “Optimize the seating position”, and simultaneously displays a graphical seat distribution interface. In the interface, the current load of each seat is marked with different colors (such as red for heavy load and blue for light load), and an arrow is used to indicate the recommended adjustment scheme P (for example, “Please move the rear left passenger to the front co-pilot seat”).

[0112] If the center of gravity offset index = 0.55, which belongs to the preset index interval [0.45, 0.65), corresponding to a moderate offset of a medium-level prompt, the text "Suggest adjusting the seating distribution" is displayed, and the color contrast is emphasized in the graphical seat interface. The expression of scheme P is more explicit (for example, "Move 2 passengers on the right side of the back row to the left side and the middle of the front row, respectively"). If the center of gravity offset index = 0.7, which belongs to the preset index interval [0.65, +∞), corresponding to a high-level prompt of obvious offset, the "Current loading is uneven, affecting energy consumption and safety" is displayed in a red warning box on the center control screen, accompanied by a prompt sound and seat vibration. The risk area is highlighted in the graphical interface, and the adjustment priority is supplemented in scheme P (for example, "1. Prefer to move 1 passenger on the right side of the back row to the front row; 2. Secondly, move the luggage on the left side to the right side to balance").

[0113] Optionally, the driving prompt information is also used to prompt the user to adjust the driving mode of the vehicle. On this basis, when generating the driving prompt information, the electronic device will also generate driving prompt information containing corresponding driving mode suggestions according to the preset index interval to which the center of gravity offset index belongs; wherein the driving mode suggestion includes a prompt not to start a specific driving mode or a prompt to start a specific driving mode.

[0114] Specifically, the specific driving mode includes a sports mode and a comfort mode. It should be understood that in the sports mode, the vehicle power response is more sensitive, and the control is biased towards being aggressive, which is easy to exacerbate the body stability risk when the center of gravity is offset. In the comfort mode, the vehicle suspension is more flexible, and the power output is more gentle, which can to some extent offset the impact of the center of gravity offset on the driving experience.

[0115] Based on this, in the present embodiment, the electronic device is configured with a corresponding rule of the preset offset index interval and the driving mode suggestion, and the corresponding rule of the preset index interval and the mode suggestion is established by analyzing the actual performance of different driving modes in the center of gravity offset state. More specifically, when the center of gravity offset index is in the interval [0.3, 0.45), the sensitivity of the sports mode to the center of gravity change is considered. At this time, if the sports mode is started, it will amplify the offset and bring instability risk, so the driving mode suggestion rule of "Current loading is uneven, not recommended to start sports mode" is configured. When the center of gravity offset index is in the interval [0.45, 0.65), the stable characteristics of the comfort mode can better adapt to the current center of gravity state, so the driving mode suggestion rule of "Current loading is uneven, recommend to start comfort mode" is configured.

[0116] As an example, in this embodiment, if the center of gravity offset index = 0.32, which belongs to the preset index interval [0.3, 0.45], corresponding to a mild offset of a medium-level prompt, the central control screen displays a text prompt of "current uneven loading, not recommended to start the sports mode", and the sports mode is highlighted in the driving mode selection interface and marked with a prohibited symbol; if the center of gravity offset index = 0.5, which belongs to the preset index interval (0.45, 0.65), corresponding to a mild or moderate offset of a medium-level prompt, a text prompt of "current uneven loading, recommended to start the comfort mode" is displayed, and the comfort mode is automatically recommended in the driving mode selection interface and a one-key switching option is provided.

[0117] In the method provided by this embodiment, by dividing the center of gravity offset index into different preset index intervals and corresponding to the configuration of the larger the end value, the higher the prompt level, the hierarchical rules can be matched and differentiated to the center of gravity offset risk. Based on this, when the offset is small, a low-intensity prompt is used to avoid disturbing the user, and when the offset is serious, a high-intensity prompt is used to strengthen the warning and provide clear adjustment suggestions, which can not only make the user intuitively perceive the risk level and judge the action priority without relying on professional knowledge, but also ensure that high-risk scenarios such as severe offset are paid attention to, effectively reduce the safety hazards caused by ambiguous prompts, and optimize the user's experience of accepting the prompt.

[0118] In addition, the method of this embodiment expands the dimension of information prompt by adding driving mode recommendations based on hierarchical prompts, forming a dual intervention system of load adjustment + mode adaptation. Combined with the characteristics of different driving modes (such as aggressive sports mode and gentle comfort mode), the index gives the guidance of not recommended to start or recommended to start according to the center of gravity offset degree, which can temporarily adapt the center of gravity state by switching the mode to reduce the risk of operation when the load cannot be adjusted immediately (such as driving), and can make the driving behavior more matched with the current center of gravity characteristics of the vehicle, further ensuring the driving safety while reducing the impact of the center of gravity offset on the driving comfort, and adapting to more complex use scenarios.

[0119] The present application also provides an embodiment of an information prompting method for detailing the specific way of generating driving prompt information. Figure 5 The flowchart of the information prompting method provided by the present application Figure 3 As shown in Figure 6 The method of this embodiment comprises:

[0120] S501, acquiring the driving state information of the vehicle.

[0121] S502, generating driving prompt information containing safety warning information based on the center of gravity offset index and the driving state information.

[0122] In the embodiment, the electronic device obtains the driving state information of the vehicle by interacting with the sensing device in the vehicle. For example, the lateral acceleration and the driving speed of the vehicle are obtained by the vehicle-mounted inertial measurement unit, and the pressure value change of each seat is collected in real time by the seat pressure sensor to determine the position change state of the passenger.

[0123] As a possible implementation, the driving state information includes the lateral acceleration. On this basis, the electronic device generates the driving prompt information containing the safety warning information indicating that there is a rollover comfort risk when the absolute value of the lateral offset indicated by the center of gravity offset index is greater than a first threshold value and the absolute value of the lateral acceleration is greater than a second threshold value.

[0124] Specifically, in the embodiment, the first threshold value is set to 0.2 m (i.e., the lateral center of gravity offset ΔCGy> 0.2 m), and the second threshold value is set to 1.0 m / s 2 (i.e., the absolute value of the lateral acceleration |ay|> 1.0 m / s 2 ). When the two conditions are met at the same time, the system determines that there is a comfort risk in the current loading, triggers a medium-level prompt, and the central control screen displays “Recognized that the current lateral acceleration is too fast, which will cause the right (left) passenger to be uncomfortable, and it is recommended to drive at a proper speed”, accompanied by a soft prompt sound to avoid interference with driving.

[0125] It should be understood that in actual application, the first threshold value and the second threshold value can be adjusted to other values according to the vehicle type characteristics (such as the wheelbase difference of a sedan and an SUV) and the vehicle design safety standards, for example, the first threshold value can be set to 0.25 m when the wheelbase of the SUV is wider, and the second threshold value can be dynamically adjusted in combination with the safe acceleration range under different road conditions (such as urban roads and highways). In addition, the prompt level is set to medium, which is consistent with the grading logic in the foregoing embodiment that “light offset corresponds to low level, and medium offset corresponds to medium level” (the lateral comfort risk belongs to a medium safety risk, and does not reach a high danger level), and can also be flexibly adapted according to actual scene requirements, for example, for higher safety requirements such as commercial vehicles, the prompt level can be upgraded to high, which is not limited in the embodiment.

[0126] In the embodiment, the driving prompt information is generated in combination with the lateral acceleration, which can combine the static center of gravity offset state with the dynamic vehicle driving condition, avoid the limitation of judging the risk only according to the center of gravity offset, for example, the lateral offset of 0.2 m when the vehicle is stationary may have no effect, but when the vehicle is changing lanes at high speed (lateral acceleration is large), the centrifugal force superposition effect will be intensified, at this time, timely prompt to slow down can effectively alleviate the discomfort of the passenger and reduce the risk of vehicle rollover, so that the safety warning is more suitable for the actual driving scene, and the timeliness and accuracy of the prompt are improved.

[0127] As another possible implementation, the driving state information includes a position change state of the occupant in the vehicle. On this basis, the electronic device generates the driving prompt information containing the safety warning information for indicating the occupant movement risk when detecting that the position of the occupant changes during the driving of the vehicle and the change amount of the center of gravity offset index during the change is greater than a preset change amount.

[0128] Specifically, the electronic device detects, through the seat pressure sensor, that the pressure value of a certain side seat in the middle and rear rows suddenly decreases, the pressure value of another seat rapidly increases, and simultaneously finds, through the center of gravity calculation module, that the lateral center of gravity (CGy) suddenly deviates. When the vehicle is in a driving state determined by the vehicle-mounted inertial measurement unit and the preset change amount is set to 0.15 m (i.e., the change amount of CGy exceeds 0.15 m), it is determined that the occupant changes seats during driving, triggering an advanced prompt to display “occupant detected changing seats during driving, risk exists, please seat immediately” with a rapid prompt sound to enhance the warning.

[0129] It should be understood that the sudden decrease, rapid increase, and sudden deviation can be determined by a preset time threshold and a change amplitude threshold, for example, the seat pressure value is determined to suddenly decrease if it decreases by more than 50% within 1 second, the pressure value of another seat is determined to rapidly increase if it increases by more than 30% within the same time period, and the lateral center of gravity is determined to suddenly deviate if it deviates by more than 0.1 m within 2 seconds. In actual application, the preset change amount can be adjusted according to parameters such as seat spacing and vehicle width, for example, the preset change amount can be set to 0.1 m when the seat spacing of a microcar is relatively close, to ensure that the risky position change can be accurately captured, which is not limited in this embodiment.

[0130] In this embodiment, the driving prompt information is generated in combination with the position change state of the occupant, which can actively identify dynamic risks (such as temporary seat change of the occupant) during driving, rather than only monitoring static load distribution. Changing seats during driving not only causes the center of gravity to suddenly deviate, affecting control, but also may cause the occupant to face safety hazards due to not wearing a seat belt and body imbalance. At this time, timely warning through an advanced prompt can remind the driver to intervene and avoid the risk from expanding, filling the gap that traditional static load monitoring cannot cover dynamic scenarios.

[0131] As a preferred example, the driving state information simultaneously includes the aforementioned lateral acceleration and the position change state of the occupant in the vehicle. On this basis, the electronic device will comprehensively judge the risk level in two dimensions: if the occupant changes seats and causes the lateral center of gravity to deviate by more than 0.2 m, and at this time the lateral acceleration of the vehicle is greater than 1.0 m / s², then the comfort risk and the occupant movement risk are superimposed, triggering a higher level of prompt, such as a red warning box on the center control screen displaying “occupant changes seats during driving and lateral acceleration is too high, there is a dual risk of safety and comfort, please slow down immediately and remind the occupant to sit down”, and the seat vibrates to enhance the driver's perception.

[0132] In practical applications, other driving state information can also be referred to for generating the driving prompt information, for example, the longitudinal acceleration of the vehicle (sudden acceleration, sudden braking), when the absolute value of the longitudinal acceleration is greater than 1.5 m / s 2 and the longitudinal offset of the center of gravity exceeds 0.3 m, prompt the sudden acceleration / sudden braking to easily cause the imbalance of the front and rear loads, and suggest smooth operation. In this embodiment, this is not limited.

[0133] As a further preferred design, when the passenger position change state indication changes and the change amount of the center of gravity offset index during the change is greater than a preset change amount, the electronic device further identifies the passenger type based on the load data collected by the seat pressure sensor: if the load mass of the changed seat is detected to be less than 40 kg, and the pressure distribution is concentrated and the coverage range meets the child riding characteristics (such as avoiding the edge area of the seat), it is determined that the child passenger moves.

[0134] At this time, in this embodiment, in addition to triggering the advanced prompt "detected child seat change in driving, high risk, please immediately confirm child safety and remind seat", the electronic device also synchronously links the child safety lock function (if the vehicle is equipped), temporarily locks the corresponding side door to prevent the child from mistakenly opening it, and pushes the warning information containing "occurrence time, vehicle position" to the bound parent mobile terminal APP, forming a closed loop of "risk identification-warning reminder-safety protection-remote notification", and more accurately protecting the safety of the child passenger.

[0135] In the method provided in this embodiment, the static center of gravity offset index is combined with the dynamic vehicle driving state information to generate safety warning information, breaking the limitation of relying on only single static data to judge the risk, and making the safety prompt more suitable for the actual driving scene. For example, when the vehicle is high-speed lane changing (large lateral acceleration), the lateral center of gravity offset amount can be combined to accurately prompt the passenger comfort risk; when the passenger changes seat (position change state) during vehicle driving, the center of gravity offset change amount can be combined to timely prompt the movement risk, effectively avoiding the problem of delayed warning or misjudgment due to deviation from the dynamic working condition.

[0136] In addition, the method of this embodiment not only covers the static load distribution problem, but also covers the potential hidden danger caused by the sudden change of the center of gravity and the change of the working condition in dynamic driving, forming a more comprehensive safety warning system, helping the driver to perceive the implicit risk (such as the passenger quietly changing seat, the acceleration superimposed on the center of gravity offset) that cannot be directly observed, and taking appropriate measures (such as reducing speed, reminding the passenger to sit down) through targeted warning to guide the driver to take appropriate measures, and finally significantly improving the safety of vehicle driving and the comfort of passenger riding.

[0137] It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all described as a combination of a series of actions, but those skilled in the art should know that the present application is not limited to the order of the actions described, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0138] Further, it should be noted that although the steps in the flowchart are shown in sequence according to the arrows, these steps are not necessarily executed in sequence according to the order of the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least part of the steps in the flowchart can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or sub-steps or stages of other steps.

[0139] The above embodiments introduce an information prompting method from the perspective of a method flow, and the following embodiments introduce an information prompting device from the perspective of a virtual module or a virtual unit. Details are described below.

[0140] The embodiments of the present application provide an information prompting device, Figure 6 The structural diagram of the information prompting device provided by the present application is shown in Figure 7 The device comprises:

[0141] The computing module 61 is configured to calculate the dynamic center of gravity position of the vehicle based on the current comprehensive load information of the vehicle, and the comprehensive load information is determined based on the load information of each preset detection position in the vehicle;

[0142] The determining module 62 is configured to determine the center of gravity deviation index of the vehicle based on the dynamic center of gravity position and the reference center of gravity position of the vehicle, and the center of gravity deviation index is determined based on the deviation amount of the dynamic center of gravity position and the reference center of gravity position in different directions;

[0143] The feedback module 63 is configured to generate and feed back driving prompt information based on the center of gravity deviation index, and the driving prompt information is used to prompt the user to adjust the load distribution mode of the vehicle, and the load distribution mode minimizes the center of gravity deviation index.

[0144] In a possible implementation of the application, the driving prompt information comprises at least one of a visual prompt, an audible prompt, or a tactile prompt; and / or the driving prompt information comprises prompt information for suggesting adjustment of a seat position, a luggage placement position, or a member seating position.

[0145] In a possible implementation of the application, the feedback module 63 is specifically configured to:

[0146] obtain at least one to-be-confirmed load distribution mode;

[0147] determine, from the at least one to-be-confirmed load distribution mode, a target load distribution mode according to a center-of-gravity offset index corresponding to the to-be-confirmed load distribution mode; the target load distribution mode has the minimum center-of-gravity offset index;

[0148] generate and feed back driving prompt information based on the target load distribution mode.

[0149] In a possible implementation of the application, the determination module 62 is specifically configured to:

[0150] determine offset amounts in each direction based on the dynamic center-of-gravity position and a reference center-of-gravity position of the vehicle;

[0151] obtain a center-of-gravity offset index based on the offset amounts in each direction and geometric parameters of the vehicle.

[0152] In a possible implementation of the application, the feedback module 63 is specifically configured to:

[0153] determine a preset index interval to which the center-of-gravity offset index belongs;

[0154] generate, according to a prompt level corresponding to the preset index interval, driving prompt information for prompting at the corresponding prompt level; the greater an endpoint value of the preset index interval, the higher the prompt level, and the higher the warning strength of the corresponding driving prompt information or the higher the definiteness of an adjustment suggestion.

[0155] In a possible implementation of the application, the driving prompt information is further used to prompt a user to adjust a driving mode of the vehicle; and the feedback module 63 is further configured to:

[0156] generate, according to a preset index interval to which the center-of-gravity offset index belongs, driving prompt information containing a driving mode suggestion corresponding to the preset index interval; wherein the driving mode suggestion comprises a prompt or a suggestion that a specific driving mode is not recommended to be started.

[0157] In a possible implementation of the application, the driving prompt information is further used to prompt safety warning information; and the feedback module 63 is further configured to:

[0158] obtain driving state information of the vehicle;

[0159] Based on the center of gravity offset index and the driving state information, driving prompt information containing safety warning information is generated.

[0160] In another possible implementation of the embodiment of the application, the driving state information includes lateral acceleration; and the feedback module 63 is specifically configured to:

[0161] When the absolute value of the lateral offset indicated by the center of gravity offset index is greater than a first threshold, and the absolute value of the lateral acceleration is greater than a second threshold, the driving prompt information containing safety warning information indicating that there is a roll comfort risk is generated.

[0162] In another possible implementation of the embodiment of the application, the driving state information includes a position change state of the occupant in the vehicle; and the feedback module 63 is specifically configured to:

[0163] When it is detected that the position of the occupant changes during driving of the vehicle, and the change amount of the center of gravity offset index during the change is greater than a preset change amount, the driving prompt information containing safety warning information indicating that there is a risk of occupant movement is generated.

[0164] In another possible implementation of the embodiment of the application, the calculation module 61 is specifically configured to:

[0165] According to the comprehensive load information and the vehicle empty load information, the total load information of the vehicle is determined;

[0166] A target detection position is determined from each preset detection position;

[0167] According to the coordinate information corresponding to each target detection position, the load information, and the total load information of the vehicle, the dynamic center of gravity position is calculated.

[0168] The information prompt device provided in the embodiment of the application is applicable to the above-mentioned embodiments of the information prompt method, and will not be described here.

[0169] In the embodiment of the application, an electronic device is provided, Figure 7 A structural schematic diagram of the electronic device provided in the application is shown in Figure 7 As shown in Figure 7 The electronic device shown in the embodiment of the application includes at least one processor 71 and a memory 72. The processor 71 and the memory 72 are connected, such as through a bus 73. Optionally, the electronic device can also include a transceiver 74. It should be noted that in actual application, the transceiver 74 is not limited to one, and the structure of the electronic device does not constitute a limitation on the embodiments of the application.

[0170] The processor 71 can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, transistor logic device, hardware component or any combination thereof. It can implement or execute the various exemplary logical blocks, modules and circuits described in connection with the disclosure. The processor 71 can also be a combination of computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0171] The bus 73 can include a path that transmits information between the above-mentioned components. The bus 73 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 73 can be divided into an address bus, a data bus, a control bus, etc. For convenience of representation, Figure 8 Only one thick line is used in the figure, but it does not mean that there is only one bus 73 or only one type of bus 73.

[0172] The memory 72 can be a read only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read only memory (EEPROM), a compact disc read only memory (CD-ROM) or other optical disk storage, an optical disk storage (including a compact disk, a laser disk, an optical disk, a digital versatile disk, a Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

[0173] The memory 72 stores computer execution instructions for implementing the scheme of this application, and the processor 71 controls the execution. The processor 71 executes the computer execution instructions stored in the memory 72 to implement the content shown in the foregoing method embodiments.

[0174] This application also provides a computer-readable storage medium, which may include various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. Specifically, the computer-readable storage medium stores computer-executable instructions, which are used to implement the methods in the above embodiments.

[0175] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the technical solution of the above method embodiments. Its implementation principle and technical effects are similar, and will not be repeated here.

[0176] This application also provides an information prompting system, which includes an electronic device, a sensing device, and a display device. The electronic device acquires comprehensive load information through the sensing device and implements the information prompting method as described in any of the foregoing method embodiments based on the comprehensive load information. It is also used to provide driving prompt information through the display device.

[0177] For example, Figure 8 A schematic diagram of the information prompting system provided in this application. (For example...) Figure 8 As shown, in this information prompting system, the sensing devices include pressure sensors installed at various preset detection positions and an inertial measurement unit. The electronic device obtains the load information at each preset detection position through the pressure sensors to obtain comprehensive load information, and obtains the lateral acceleration through the inertial measurement unit to generate driving prompt information.

[0178] like Figure 8 As shown, the information prompting system also includes a storage unit for storing vehicle configuration information. Electronic devices obtain the corresponding vehicle configuration information through the storage unit, combine it with the load information obtained from the sensing device, determine the current dynamic center of gravity position of the vehicle, and finally generate driving prompt information.

[0179] like ​ As shown, the information prompting system also includes a display device, through which the electronic device feeds back the generated posture prompts to the user.

[0180] The information prompting system provided in the application can accurately collect load data and driving state information through a pressure sensor, an inertial measurement unit and other sensing devices, and realize automatic operation of the whole process from data collection, gravity calculation, risk assessment to prompt feedback in combination with vehicle configuration information in the storage unit. The information prompting system does not need to rely on external devices, can be directly adapted to the existing hardware architecture of the vehicle, and can directly and intuitively deliver driving prompt information to the user through a display device, so as to ensure that the functions such as hierarchical warning, driving mode suggestion and safety warning in the foregoing information prompting method are efficiently landed, and finally provide the user with all-around information support covering static load distribution and dynamic driving conditions, and effectively improve the convenience and driving safety of vehicle load management.

[0181] The embodiment of the application further provides a vehicle comprising the information prompting system in the foregoing embodiment, which will not be described herein.

[0182] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The application is intended to cover any variations, uses or adaptive changes of this application following the general principles of the application and including known or customary practices in the art not specifically disclosed in the specification. The specification and examples are only regarded as illustrative, and the true scope and spirit of the application are indicated by the claims.

[0183] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the claims that follow.

Claims

1. An information prompting method, characterized in that, The method includes: The dynamic center of gravity position of the vehicle is calculated based on the vehicle's current comprehensive load information; the comprehensive load information is determined based on the load information of each preset detection position within the vehicle. Based on the dynamic center of gravity position and the reference center of gravity position of the vehicle, the center of gravity offset index of the vehicle is determined; the center of gravity offset index is determined based on the offset of the dynamic center of gravity position from the reference center of gravity position in different directions. Driving prompts are generated and fed back based on the center of gravity offset index; the driving prompts are used to prompt the user to adjust the load distribution method of the vehicle so that the center of gravity offset index is minimized.

2. The method according to claim 1, characterized in that, The driving prompts include at least one of visual, auditory, or tactile prompts; and / or, the driving prompts include suggestions for adjusting seat position, luggage placement, or passenger seating position.

3. The method according to claim 1 or 2, characterized in that, The process of generating and feeding back driving prompt information based on the center of gravity offset index includes: Obtain at least one load allocation method to be confirmed; Based on the center of gravity offset index corresponding to the load allocation method to be confirmed, a target load allocation method is determined from at least one load allocation method to be confirmed; the target load allocation method has the smallest center of gravity offset index. The driving prompt information is generated and fed back based on the target load allocation method.

4. The method according to claim 1 or 2, characterized in that, The determination of the vehicle's center of gravity offset index based on the dynamic center of gravity position and the vehicle's reference center of gravity position includes: Based on the dynamic center of gravity position and the vehicle's reference center of gravity position, the offset in each direction is determined; The center of gravity offset index is obtained based on the offset in each direction and the vehicle's geometric parameters.

5. The method according to claim 1 or 2, characterized in that, The process of generating and feeding back driving prompt information based on the center of gravity offset index includes: Determine the preset index range to which the center of gravity offset index belongs; Based on the warning level corresponding to the preset index range, driving warning information is generated for providing warnings at the corresponding warning level; the larger the endpoint value of the preset index range, the higher the warning level, and the higher the clarity of the warning intensity or adjustment suggestion of the corresponding driving warning information.

6. The method according to claim 5, characterized in that, The driving prompt information is also used to prompt the user to adjust the driving mode of the vehicle; the method further includes: Based on the preset index range to which the center of gravity offset index belongs, driving prompt information containing corresponding driving mode suggestions is generated; wherein, the driving mode suggestions include prompts that do not recommend turning on a specific driving mode or prompts that recommend turning on a specific driving mode.

7. The method according to claim 1 or 2, characterized in that, The driving prompt information is also used to provide safety warning information; The process of generating and feeding back driving prompt information based on the center of gravity offset index includes: Obtain the driving status information of the vehicle; Based on the center of gravity offset index and the driving status information, a driving prompt message containing the safety warning information is generated.

8. The method according to claim 7, characterized in that, The driving status information includes lateral acceleration; the generation of driving prompt information containing the safety warning information based on the center of gravity offset index and the driving status information includes: When the absolute value of the lateral offset indicated by the center of gravity offset index is greater than a first threshold, and the absolute value of the lateral acceleration is greater than a second threshold, a driving prompt message containing a safety warning information indicating a risk to roll comfort is generated.

9. The method according to claim 7, characterized in that, The driving status information includes the positional changes of the occupants within the vehicle; the generation of driving prompt information containing the safety warning information based on the center of gravity offset index and the driving status information includes: When a change in the occupant's position is detected during the vehicle's operation, and the change in the center of gravity offset index is greater than a preset change, a driving prompt message containing safety warning information indicating the risk of occupant movement is generated.

10. The method according to claim 1 or 2, characterized in that, The calculation of the vehicle's dynamic center of gravity position based on the vehicle's current comprehensive load information includes: Based on the comprehensive load information and the vehicle unloaded information, the total vehicle load information is determined; The target detection position is determined from each of the preset detection positions; The dynamic center of gravity position is calculated based on the coordinate information and load information corresponding to each target detection position, as well as the total vehicle load information.

11. An information prompting device, characterized in that, The device includes: The calculation module is used to calculate the dynamic center of gravity position of the vehicle based on the vehicle's current comprehensive load information; the comprehensive load information is determined based on the load information of each preset detection position inside the vehicle. The determination module is used to determine the center of gravity offset index of the vehicle based on the dynamic center of gravity position and the reference center of gravity position of the vehicle; the center of gravity offset index is determined based on the offset of the dynamic center of gravity position from the reference center of gravity position in different directions. The feedback module is used to generate and provide driving prompts based on the center of gravity offset index; the driving prompts are used to prompt the user to adjust the load distribution method of the vehicle so that the center of gravity offset index is minimized.

12. An electronic device, characterized in that, include: At least one processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The at least one processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1-10.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-10.

14. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method described in any one of claims 1-10.

15. An information prompting system, characterized in that, The system includes an electronic device, a sensing device, and a display device; the electronic device acquires comprehensive load information through the sensing device, and implements the information prompting method as described in any one of claims 1-10 based on the comprehensive load information, and is also used to provide feedback of the driving prompt information through the display device.

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