Stability characterization method and system, electronic device, computer readable storage medium, computer program and vehicle

Abstract

The invention discloses a vehicle stability characterization method and system, an electronic device, a computer readable storage medium, a computer program and a vehicle, and relates to the technical field of vehicle performance testing. The method comprises the steps that a stability simulation image is displayed, simulation motion information of the stability simulation image is obtained according to vehicle motion state information (such as directions and acceleration values), containers and liquid in the image have physical attributes such as solid stability and liquid flowing, and stability scores, reports and ranking lists can be obtained according to the physical attributes. The system comprises an information acquisition device, a central control device and a display device. According to the scheme, professional instrument testing is replaced by virtual simulation, operation is easy and convenient, data are accurate, interestingness is achieved, the testing threshold is lowered, non-professionals can also use the method, and interactivity can be enhanced through social sharing and ranking.

Description

Technical Field

[0001] This application relates to the field of vehicle performance testing technology, specifically to a stability characterization method and system, electronic device, computer-readable storage medium, computer program, and vehicle. Background Technology

[0002] In the development of automotive technology, vehicle stability testing is a crucial step in ensuring driving safety and optimizing vehicle performance. Currently, vehicle stability testing methods are primarily based on sensor calibration testing systems. These systems require specialized equipment, which is not only expensive and complex to operate, but also highly specialized, making them unsuitable for non-professionals and significantly limiting the accessibility and convenience of vehicle stability testing.

[0003] Furthermore, in real-life situations, people occasionally place water-filled cups inside their cars to conduct vehicle stability tests. However, this method only assesses stability through subjective visual observation of water movement, failing to obtain detailed and accurate data, making it difficult to conduct scientific and objective quantitative analysis of vehicle stability. Moreover, during vehicle operation, water can easily splash out, not only soiling the car interior but also potentially damaging electronic equipment, causing considerable inconvenience. Therefore, there is an urgent need for a vehicle stability testing method and system that is easy to operate, provides accurate data, and is also engaging, to meet the needs of different user groups for vehicle stability testing. Summary of the Invention

[0004] This application provides a vehicle stability characterization method and system, electronic device, computer-readable storage medium, computer program, and vehicle, which realizes intuitive display, comprehensive analysis, and fun testing of vehicle stability through virtual simulation and diverse functional modules.

[0005] In a first aspect, this application provides a stability characterization method, which includes: displaying a stability simulation image, the stability simulation image being used to characterize the stability information of a vehicle, and the simulated motion information of the stability simulation image being obtained based on the vehicle's motion state information.

[0006] In one possible design, the stability simulation image is set to have simulated physical properties, including one or more of solid stability, liquid flow, gravity, and mass.

[0007] In one possible design, the stability simulation image includes a container and a liquid, with the liquid placed inside the container.

[0008] In one possible design, the simulated motion information of the container is obtained based on the motion state of the vehicle; the simulated motion information of the liquid is obtained based on the simulated motion information of the container; and the vehicle's stability information is obtained based on the simulated motion information of the liquid.

[0009] In one possible design, the vehicle's motion status information includes one or more of the following: direction, gravity, acceleration, angular velocity, and balance.

[0010] In one possible design, the simulated motion information of the container includes one or more of the following: acceleration, deceleration, swaying, and bumping; and depending on the simulated motion of the liquid, it includes one or more of the following: back-and-forth undulation, left-and-right undulation, and overflow.

[0011] In one possible design, obtaining vehicle stability information based on simulated fluid motion information also includes obtaining vehicle stability scores and / or stability reports based on simulated fluid motion information.

[0012] In one possible design, historical stability scores and / or stability reports of the vehicle are recorded, and a stability ranking of the vehicle is obtained based on the historical stability scores and / or stability reports. The stability ranking includes one or more of the following: single ranking, task ranking, monthly, quarterly, and yearly ranking.

[0013] Secondly, this application provides a stability characterization system, which includes: an information acquisition device, a central control device, and a display device; the information acquisition device is used to acquire vehicle motion state information, and includes a sensor group and a communication interface; the central control device is used to generate a stability simulation image, generate simulated motion information of the stability simulation image based on the vehicle motion state information, and obtain vehicle stability information based on the simulated motion information, and includes a central processing unit, a graphics processing unit, a storage module, and a data analysis module; the display device is used to display the stability simulation image, and includes a display screen and a human-machine interface.

[0014] Thirdly, this application provides an electronic device, comprising: a memory for storing executable code; and a processor for executing the executable code to implement the above-described method.

[0015] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to perform the above-described method.

[0016] Fifthly, this application provides a computer program including instructions that, when executed, implement the above-described method.

[0017] Sixthly, this application provides a vehicle including the aforementioned electronic device.

[0018] This system uses a virtual model interface to simulate a real-world environment for testing vehicle stability. No specialized equipment is required, and the operation is simple and easy to understand. Users can intuitively understand vehicle stability by observing the fluctuations of water in a cup on the cockpit screen, greatly lowering the barrier to entry and allowing even non-professionals to easily conduct vehicle stability tests. Attached Figure Description

[0019] Figure 1 A schematic flowchart of a stability characterization method provided in this application embodiment.

[0020] Figure 2 A schematic diagram of another stability characterization method provided in this application embodiment

[0021] Figure 3 A stability characterization method and system interaction diagram provided in the embodiments of this application.

[0022] Figure 4 A schematic diagram of a stability characterization system—simulation test module—provided for embodiments of this application.

[0023] Figure 5 A simulation test module - preparation state effect diagram provided for an embodiment of this application.

[0024] Figure 6 A simulation test module provided in this application - test state effect diagram

[0025] Figure 7 A simulation test module provided in this application embodiment - end state effect diagram

[0026] Figure 8 A schematic diagram of a stability characterization system—result analysis module provided in an embodiment of this application.

[0027] Figure 9 A rendering of a result analysis module provided in an embodiment of this application.

[0028] Figure 10 A schematic diagram of a stability characterization system—an entertainment and social module—provided for embodiments of this application.

[0029] Figure 11 An entertainment and social module ranking effect diagram provided in this application embodiment

[0030] Figure 12 A schematic diagram of a stability characterization system provided in this application embodiment. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0032] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of operations or units is not limited to the listed operations or units, but may optionally include operations or units not listed, or may optionally include other operations or units inherent to these processes, methods, products, or apparatuses.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the correspondence between corresponding objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the corresponding objects before and after it are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0035] See Figure 1 , Figure 1 This is a schematic flowchart of a stability characterization method provided in an embodiment of this application. Figure 1 As shown, the method includes:

[0036] S110 displays a stability simulation image, which is used to characterize the stability information of the vehicle. The simulated motion information of the stability simulation image is obtained based on the motion state information of the vehicle.

[0037] Stability simulation images are visual graphics generated based on virtual modeling technology, used to intuitively present vehicle stability information. Understandably, these images are not limited to a specific form; they can be any combination of virtual objects or scenes that conform to physical logic, such as an array of geometric shapes, a dynamic model of fluid morphology, or a symbolic abstract pattern. These virtual elements are assigned physical properties such as mass, inertia, and friction within the system. Through changes in their shape, position, and motion, the abstract concept of vehicle stability is transformed into visual information, facilitating understanding and analysis.

[0038] Vehicle stability is the ability of a vehicle to maintain its balance, stay on its normal trajectory, and ensure driving safety when faced with dynamic changes and external disturbances such as acceleration, deceleration, steering, and road bumps. It involves multiple fields, including vehicle dynamics, suspension systems, and tire performance, and is an indicator of vehicle performance. This invention presents vehicle stability in an intuitive and quantifiable way through stability simulation images, helping users quickly grasp the real-time stability status of the vehicle and providing a basis for safe driving and vehicle performance evaluation.

[0039] Various sensors on the vehicle collect real-time motion data such as direction, acceleration, angular velocity, and tilt angle, and transmit this data to the vehicle stability testing system. The system analyzes and calculates the collected vehicle motion data based on a pre-built mathematical model and physical algorithms. Based on the calculation results and according to pre-defined mapping rules, it drives virtual elements in the stability simulation image to produce corresponding motion changes. For example, when the vehicle accelerates, the system uses acceleration data to cause virtual objects in the simulation image to undergo accelerated displacement, deformation, or attitude adjustment; when the vehicle turns, the virtual objects change direction and angle accordingly. Through this data-driven and physical simulation mechanism, the motion state of the stability simulation image accurately and in real-time reflects the actual motion of the vehicle, establishing a dynamic correlation between vehicle motion and image changes.

[0040] The stability simulation image is presented through the vehicle's infotainment system, providing users with an intuitive visual interface. During display, the system dynamically refreshes the simulation image frequently based on the vehicle's real-time movement, ensuring synchronization between image changes and actual vehicle motion. To enhance information delivery, the image display incorporates auxiliary elements such as data labels and status indicators. For example, stability scores and key parameter values ​​are annotated around the image, or abnormal states are highlighted through color and lighting changes. Furthermore, the display system features adaptive adjustment, automatically optimizing display parameters such as color contrast and brightness based on ambient light intensity and display terminal characteristics, ensuring users can clearly and accurately obtain vehicle stability information in various scenarios.

[0041] By transforming complex and abstract vehicle stability information into intuitive, dynamic visual changes, users can easily understand the vehicle's stability status, lowering the professional barrier to vehicle stability testing and enabling more users to participate in vehicle performance evaluation. Furthermore, this novel visualization method increases the fun of vehicle stability testing, changing the traditional perception of testing as dry and technical, and enhancing the interactivity between users and the vehicle system.

[0042] See Figure 2 , Figure 2 This is a schematic diagram of another stability characterization method provided in an embodiment of this application.

[0043] like Figure 2 As shown, the method includes:

[0044] The S210 uses a vehicle stability testing system to generate a water cup in the vehicle's infotainment system. The water and the cup possess real-world physical properties, such as solid stability, liquid flow, gravity, and mass, and are displayed on the cockpit screen.

[0045] In some embodiments, the virtual elements in the stability simulation image can be a container and liquid, with the liquid placed in the container. After the vehicle is started and the user activates the vehicle stability test system through the vehicle's infotainment interface, the system calls the graphics rendering and physics simulation engine to construct a simulated virtual water cup model within the vehicle's infotainment system. This water cup can be generated using 3D modeling technology, and its appearance, size, and other parameters can be flexibly set according to actual needs. For example, it can simulate the style and size of common in-vehicle water cups to enhance the user's sense of immersion. The water in the cup is generated using a fluid simulation algorithm, giving it realistic physical properties such as liquid flow, surface tension, and viscosity. At the same time, both the cup and the water are given physical parameters such as gravity and mass that conform to real-world laws, ensuring that they move in accordance with the physical laws of the real world during subsequent simulations. The system projects the completed virtual model of the water cup and water onto the cockpit screen or a user-specified display area through the vehicle's graphics display interface, forming an intuitive visual interface.

[0046] The S220 acquires physical parameters of the vehicle's real-world environment, such as direction, gravity, acceleration, angular velocity, and balance, through vehicle sensors, and transmits these parameters to the system.

[0047] Multiple sensors deployed around the vehicle work together to collect information about the vehicle's motion status during driving, including but not limited to direction, gravity, acceleration, angular velocity, and balance.

[0048] Understandably, the direction sensor monitors changes in the vehicle's direction of travel in real time, collecting information such as the vehicle's steering angle and steering rate; the gravity sensor senses changes in the direction and magnitude of gravity acting on the vehicle in three-dimensional space in real time, used to determine whether the vehicle is tilted, overturned, or in other postures; the acceleration sensor detects the vehicle's acceleration and deceleration in the forward, backward, left, right, and up / down directions in real time, obtaining acceleration values; the angular velocity sensor measures the vehicle's rotational speed around each axis in real time, obtaining angular velocity values; and the balance sensor comprehensively analyzes the above multiple data to assess the overall balance of the vehicle.

[0049] Onboard sensors sample the vehicle's motion status information in real time at a high frequency, and perform preliminary filtering and noise reduction on the collected raw data to improve data quality. Subsequently, the processed motion status information is transmitted to the main control unit of the vehicle stability testing system via a high-speed data transmission bus inside the vehicle, such as the Controller Area Network (CAN) bus, providing data support for subsequent virtual environment simulation.

[0050] The S230 system uses the above physical parameters to simulate the virtual environment in which the water cup is located, such as acceleration, deceleration, shaking, and bumping, and records the fluctuations in the water cup.

[0051] When the main control unit of the vehicle stability testing system receives the vehicle's motion status information transmitted by the onboard sensors, it maps the vehicle's motion status in the real world to the virtual environment where the water cup is located, based on preset physical simulation algorithms and mapping rules. For example, when the vehicle sensors detect that the vehicle is accelerating forward, the system calculates the backward tilt angle of the virtual water cup and the initial speed and amplitude of the water's forward undulation in the virtual space according to the magnitude and direction of the acceleration and physical formulas. If the vehicle is turning, the system simulates the dynamic process of the virtual water cup and water tilting and rotating in opposite directions based on the steering angular velocity and duration. When the vehicle encounters road bumps, the system will cause the virtual water cup to vibrate and shake irregularly based on parameters such as the frequency and intensity of the bumps, while simultaneously causing the water to produce complex undulation patterns.

[0052] During the simulation, the system's built-in data logging module records various fluctuations of the water in the cup. Specifically, this includes the water's displacement and velocity changes in the front-to-back direction, the amplitude and frequency of swaying in the left-to-right direction, and whether water overflows (if overflow occurs, it accurately records detailed information such as the amount of water overflowed and the time of overflow).

[0053] The S240 calculates the stability score of the water cup based on the fluctuations of the water in the cup, including back-and-forth fluctuations, left-and-right fluctuations, and the amount of water overflowing.

[0054] After recording the water fluctuations in the cup in real time, a pre-set stability scoring model is activated. This model integrates various mathematical analysis methods and weighting strategies to perform in-depth analysis and quantitative evaluation of the recorded water fluctuation data. First, for the forward and backward fluctuations and the left and right fluctuations, the system calculates the average, maximum, and minimum values ​​of the fluctuation amplitude, and assigns corresponding deduction weights based on the degree to which the fluctuation amplitude deviates from the normal range. For water overflow, a more stringent deduction mechanism is set, which not only deducts points based on the amount of water overflowed, but also considers the impact of the frequency and timing of the overflow on stability.

[0055] Simultaneously, the model also considers the correlation between vehicle motion parameters and water fluctuations. For example, under the same water fluctuation amplitude, if the vehicle is traveling at high speed, it is considered to have a greater impact on stability, and the penalty weight is increased accordingly. Through weighted calculation and summarization of various fluctuation data, a quantitative score that comprehensively reflects the stability of the water cup is finally obtained.

[0056] In some embodiments, the rating can be displayed in an intuitive numerical form (such as a 0-100 scale) above the cup model on the cockpit screen or in a dedicated rating display area, allowing users to quickly understand the current stability status of the vehicle.

[0057] In addition to the stability rating, the S250 also provides a detailed stability report, including the overall fluctuation curve, fluctuation parameters at various times, and environmental parameters.

[0058] In some embodiments, a stability report can be further generated. This report may include multi-dimensional vehicle stability analysis, such as the overall fluctuation curve and fluctuation parameters at various times. Regarding the overall fluctuation curve, a curve showing the water fluctuation amplitude over time is plotted based on the recorded water fluctuation data. Users can visually observe the dynamic evolution of water fluctuations throughout the test, such as when the fluctuation amplitude increases and when it stabilizes. For fluctuation parameters at various times, data such as the front-to-back fluctuation amplitude, left-to-right fluctuation amplitude, fluctuation velocity, and acceleration of the water can be recorded at preset time intervals for comparative analysis. Users can access and view this stability report through interactive buttons on the vehicle's infotainment interface.

[0059] The S260 system automatically saves each test record and can also generate comparison records; users can share each record.

[0060] The data storage module automatically saves data from each vehicle stability test, including stability scores and / or stability reports.

[0061] When users need to compare and analyze the results of different stability tests, they can select two or more test records and generate comparison records through data processing and analysis functions. In some embodiments, the differences in stability scores, changes in water wave characteristics, and comparisons of vehicle motion parameters between different stability test results are displayed in an intuitive way, such as side-by-side charts and data difference comparisons, to help users clearly understand the changing trends of vehicle stability under different operating conditions and driving conditions.

[0062] In some embodiments, stability test results can also be shared. Through the in-vehicle infotainment system's built-in social network interface, stability test results (such as stability scores, stability reports, and dynamic footage during the test) can be shared to social media platforms, further enhancing user engagement and participation in the vehicle stability testing system.

[0063] The S270 system can generate stability rankings based on big data, including single-event rankings, task rankings, monthly, quarterly, and yearly rankings; users can share these rankings.

[0064] The single-test leaderboard can sort the stability scores of many users within the same time period, showing the user's ranking position in this test and the score difference with other users, thus meeting the user's need for horizontal comparison of the stability of their own vehicle in a short period of time.

[0065] The task leaderboard ranks users based on their performance and time in completing various stability test tasks released by the system, encouraging them to actively participate in the challenges and enhancing the fun and interactivity of vehicle stability testing.

[0066] The monthly and annual rankings take a broader time perspective, comprehensively considering users' test results over a month, a quarter, or a year to select vehicles and users with excellent stability performance.

[0067] Users can view these stability rankings at any time through the vehicle's infotainment interface to understand their vehicle's relative stability level across different ranges and time periods. The system also allows users to share their top scores and rankings on social media platforms, showcasing their vehicle's performance advantages and attracting more users to participate in vehicle stability testing and ranking competitions.

[0068] See Figure 3 , Figure 3 A stability characterization method and system interaction diagram provided for embodiments of this application.

[0069] This interactive illustration showcases the vehicle stability test on the in-vehicle infotainment interface, divided into two parts: the upper part centers on the screen, displaying "Stability Test." Within the screen is a water cup with graduated scales on either side. This represents how the infotainment system simulates the vehicle stability test by displaying a water cup with realistic physical properties. As the vehicle moves, onboard sensors collect motion data and transmit it to the stability test system. The system then simulates changes in the virtual environment surrounding the water cup, such as acceleration, deceleration, and shaking. The liquid in the cup will fluctuate accordingly, allowing users to observe the amplitude of these fluctuations and gain a preliminary understanding of the vehicle's stability. The graduated scales further quantify the degree of liquid fluctuation.

[0070] The lower half of the in-vehicle screen displays "Stability Analysis," with a fluctuation curve in the middle. This is the stability analysis result generated after the stability test is completed, based on data such as the fluctuation of water in the cup (e.g., front-to-back fluctuation, left-to-right fluctuation, and overflow). The fluctuation curve visually displays the vehicle's stability trend during the test and can also combine fluctuation parameters and environmental parameters at various times to provide users with a more comprehensive and in-depth analysis of vehicle stability, helping them understand the vehicle's stability performance under different driving conditions.

[0071] See Figure 4 , Figure 4 This is a schematic diagram of a stability characterization system—simulation test module—provided in an embodiment of this application.

[0072] The stability testing system consists of three modules: a simulation testing module, a results analysis module, and an entertainment and social module.

[0073] The simulation testing module's main function is to generate a virtual model of a water cup within the vehicle stability testing system. This water cup and water possess real-world physical properties, such as the stability of solids, the fluidity of liquids, as well as gravity and mass. Once generated, it is displayed on the vehicle's screen to simulate the vehicle's stability during operation.

[0074] The stability testing module includes three states: preparation state, testing state, and end state.

[0075] See Figure 5 , Figure 5 A simulation test module in a ready state is shown in the embodiment of this application.

[0076] The cup is placed horizontally, containing a certain amount of water (the volume can be customized or fixed). The water surface is level, presenting a stable initial state. Fluctuation values ​​are displayed on both sides of the cup for later comparison of water fluctuations. The water mass is displayed at the bottom of the cup, providing basic physical parameter information. At this point, the system is in a ready state to start testing.

[0077] See Figure 6 , Figure 6 A simulation test module provided in this application embodiment - test state effect diagram.

[0078] Vehicle motion status information, including direction, gravity, acceleration, angular velocity, and balance, is collected through onboard sensors. This motion information is then used to simulate a virtual environment for the water cup. For example, when the vehicle accelerates, decelerates, shakes, or bumps, the state of the water cup and water is adjusted accordingly to simulate real-world driving conditions. During the simulation, the fluctuations in the water within the cup are recorded, including forward and backward movements, left and right movements, and the amount of water spilled, providing data for subsequent stability assessments.

[0079] See Figure 7 , Figure 7 This is a diagram showing the effect of the simulation test module in the final state, as provided in an embodiment of this application.

[0080] After the stability test is completed, the system returns to the ready state, ceasing real-time acquisition of vehicle motion information and recording of water fluctuations. Based on the water fluctuations recorded during the test, a specific algorithm calculates a stability score. This score is then displayed above the water cup, allowing users to intuitively understand the vehicle's stability results.

[0081] See Figure 8 , Figure 8 This is a schematic diagram of a stability characterization system—result analysis module—provided in an embodiment of this application.

[0082] This diagram illustrates the results analysis module of the stability testing system. In addition to providing a stability score, this module allows users to view a stability report, which covers multi-dimensional data, including water surface fluctuation data, vehicle stability data, and historical comparison records.

[0083] Understandably, water surface fluctuation data involves the quantitative analysis of water fluctuations in a cup. In some embodiments, this may include overall fluctuation statistics, such as the maximum, minimum, and average values ​​of the overall fluctuation magnitude. These values ​​provide a clear understanding of the range and average level of water fluctuation amplitude, helping to determine the intensity of water fluctuations during the test. It may also include an overall fluctuation curve, plotted with time on the x-axis and fluctuation amplitude on the y-axis, fully presenting the dynamic changes in water fluctuations throughout the test. This facilitates analysis of the evolution of fluctuations over time and their correlation with vehicle motion information. Furthermore, it may include fluctuation data in specific directions: statistically analyzing fluctuation amplitudes for left-right, forward-backward, and rotational directions to pinpoint the characteristics of water fluctuations in different directions, thereby providing in-depth analysis of the impact of different vehicle motion states (such as steering, acceleration, and deceleration) on water fluctuations. Finally, it may include data on water overflow: recording whether water overflow occurred during the test and the amount of overflow. Water overflow is one of the most direct indicators of insufficient vehicle stability, and this data can serve as a basis for assessing the degree of stability risk.

[0084] Vehicle stability data analysis focuses on the overall stability of the vehicle and its stability under different operating conditions. In some embodiments, this may include an overall directional stability assessment: a comprehensive evaluation of the vehicle's overall stability from left-right, front-back, and up-down directions, providing a comprehensive conclusion on the vehicle's attitude stability in three-dimensional space, and determining whether there are excessive tilting, swaying, or other unstable conditions during vehicle operation. It may also include an overall stability curve: plotting the overall stability of the vehicle over time, showing the dynamic trend of stability changes throughout the test process, and cross-referencing it with a water surface ripple curve to aid in analyzing the causes of changes in vehicle stability. It may also include stability under specific operating conditions: evaluating the vehicle's stability performance under specific driving conditions such as acceleration, steering, and bumps, clarifying the vehicle's performance advantages and disadvantages in different scenarios, and providing a reference for vehicle performance optimization and driving habit improvement. It may also include emergency handling stability feedback: simulating emergency handling situations (such as emergency braking, sudden avoidance, etc.) and recording the vehicle's stability feedback data.

[0085] Historical comparison records facilitate users' comparison and analysis of current test results with past data. In some embodiments, this may include a recent overall stability curve, displaying a set of overall stability curves from multiple recent stability tests. Users can intuitively compare the recent trends in vehicle stability and promptly detect any deterioration or improvement in stability. Historical statistics may also be included: summarizing the best, worst, and average stability data from historical tests to provide users with a historical benchmark for stability assessment. By comparing these with current test results, users can clearly understand the position of the vehicle's stability within the historical data. Single-selection comparison may also be included: allowing users to select specific historical test records for detailed comparison based on different dimensions such as time, version, and user. For example, comparing vehicle stability differences at different times (e.g., before and after vehicle maintenance), under different software versions, or under different user driving habits, meeting diverse and personalized analytical needs and deeply exploring vehicle stability-related information.

[0086] See Figure 9 , Figure 9 This is a rendering of a result analysis module provided in an embodiment of this application.

[0087] Data ① Water surface fluctuation data: For example, overall fluctuation size, maximum / minimum / average value; overall fluctuation curve; specific fluctuation details, left / right / forward / backward / rotation; overflow water volume.

[0088] Data ② Vehicle stability data: Overall vehicle stability (left / right / front / back / up / down); Overall stability curve; Specific stability conditions (acceleration / steering / bumps); Emergency handling stability feedback;

[0089] Data ③ Historical comparison records: such as recent overall stability curve; historical statistical values, best & worst & average; single selection comparison, which can be based on time / version / user.

[0090] See Figure 10 , Figure 10 This is a schematic diagram of a stability characterization system—an entertainment and social module—provided as an embodiment of this application.

[0091] This module can generate a vehicle stability ranking list based on big data. Users can share their stability records and ranking records, and also participate in stability test tasks to earn more points rewards.

[0092] Users who wish to participate in the vehicle stability ranking must first sign an agreement to participate in the stability ranking. This step ensures that users are aware of and agree to the system using their vehicle stability test data, while also guaranteeing that the use of user data complies with relevant privacy policies and laws and regulations.

[0093] Leveraging big data technology, we collect and integrate a large amount of stability test data from other vehicles. This data covers the stability performance information of numerous vehicles under different driving conditions and environments, providing a reference sample for accurately evaluating the stability ranking of user vehicles.

[0094] Based on the acquired big data and the user's own vehicle stability test data, the system uses specific algorithms to analyze and calculate the user's vehicle's specific ranking in various leaderboards (such as single-event leaderboards, task leaderboards, monthly / quarterly / yearly leaderboards, etc.). Simultaneously, it displays more ranking-related information to the user, such as the stability score difference with adjacent ranked vehicles, and the ranking in a specific region or vehicle type, enabling the user to fully understand their vehicle's stability position within the overall ranking.

[0095] In addition, users can share their vehicle's stability test data, including detailed information such as water surface fluctuation data and vehicle stability data, as well as the final stability score record, to mainstream social media platforms. Through this sharing, users can demonstrate their vehicle's performance to friends and fellow car enthusiasts, and also spark discussions on vehicle stability.

[0096] In some embodiments, a stability testing task may also be included. For example, task requirements may include achieving a certain stability score under specific road conditions, completing multiple stability tests within a specified time, and obtaining a high average score. After a user successfully participates in and completes the stability testing task, the system will award corresponding points based on factors such as task difficulty and completion quality. These points can be used to redeem virtual prizes (such as car infotainment theme skins, virtual badges, etc.), physical prizes (such as in-car accessories, etc.), or to enjoy discounts on vehicle-related services (such as maintenance discounts, etc.), thereby incentivizing users to actively participate in the task and increasing user engagement with the system.

[0097] See Figure 11 , Figure 11 An entertainment and social module ranking effect diagram provided for an embodiment of this application.

[0098] This image showcases the stability leaderboard interface within the entertainment and social module. The main body of the interface presents the leaderboard information in a table format, including ranking, user ID, brand, and rating. This data allows users to intuitively compare the stability differences between their vehicles and those of other users, understanding their vehicle's stability level and its position among all participating vehicles. Additionally, a "Share" button allows users to share this leaderboard information or their ranking on social media platforms, increasing social interaction and fun.

[0099] See Figure 12 , Figure 12This is a schematic diagram of a stability characterization system provided in an embodiment of this application. The stability testing system includes: an information acquisition device, a central control device, and a display device.

[0100] The information acquisition device is responsible for collecting the vehicle's motion status information, providing a data foundation for subsequent system analysis and simulation.

[0101] The information acquisition device includes a sensor array. In some embodiments, the sensor array may include an acceleration sensor: used to measure the vehicle's acceleration in three-dimensional space, capable of accurately sensing acceleration changes during vehicle acceleration and deceleration. For example, during rapid vehicle acceleration, it can acquire the acceleration value along the driving direction in real time; during vehicle braking, it can monitor the magnitude of the reverse acceleration. Using this data, the system can determine the dynamic changes in vehicle power output and braking.

[0102] It may also include an angular velocity sensor (gyroscope): which mainly measures the rotational angular velocity of the vehicle around each axis. When the vehicle turns, it can accurately detect the angular velocity of the turn, helping the system understand the rate and angle changes of the vehicle's turn, and thus accurately simulate the tilt of the cup and the ripples of the water in the virtual environment.

[0103] It may also include a gravity sensor: to sense changes in the direction and magnitude of the gravity acting on the vehicle in real time. When the vehicle is climbing uphill, going downhill, or driving on an inclined road, the gravity sensor can provide key data to determine whether the vehicle's posture is stable and the impact on the static and dynamic position of the water in the cup.

[0104] It may also include a direction sensor: accurately determining the vehicle's driving direction, whether driving in a straight line or turning, it can provide the system with accurate direction information, enabling the system to reasonably simulate the change in the cup's orientation in virtual space according to the change in the vehicle's driving direction.

[0105] It may also include wheel speed sensors: mounted on the vehicle's wheels, these sensors measure the wheel's rotational speed to calculate the vehicle's speed and monitor for abnormal conditions such as wheel slippage. This is helpful in assessing the vehicle's stability under different road conditions, such as its performance on wet or icy surfaces.

[0106] The information acquisition device also includes a communication interface, which in some embodiments may use a CAN bus to transmit the processed vehicle motion status information to the central control device, ensuring the real-time and accuracy of data transmission and avoiding data loss or delay.

[0107] The central control unit is the core of the stability testing system. It processes data from the information acquisition devices and generates stability simulation images and related information. It includes a Central Processing Unit (CPU): as the core computing component, it possesses powerful computing capabilities, enabling it to quickly process large amounts of vehicle motion state data transmitted from the information acquisition devices. By running complex physical simulation algorithms and data analysis programs, it calculates in real-time the simulated motion information that the cup and water should exhibit in the stability simulation image, such as tilt angle and fluctuation amplitude, based on parameters such as the vehicle's acceleration, angular velocity, and direction. Simultaneously, it coordinates the work of various modules within the system to ensure the smooth operation of the entire system.

[0108] Graphics Processing Unit (GPU): Dedicated to graphics rendering and processing, it efficiently generates realistic and stable simulated images using simulated motion information calculated by the CPU. Through advanced graphics rendering technology, it gives water glasses and water the appearance and dynamic effects that conform to real-world physical properties, making them present highly realistic visual effects on display devices, such as the texture of liquid flow and the changes in light and shadow on the water glass.

[0109] Storage module: This includes Random Access Memory (RAM) and non-volatile memory (such as flash memory and hard disks). RAM is used for temporary storage of data during system operation, such as vehicle motion status information being processed and intermediate calculation results of simulated images, ensuring that the CPU and GPU can quickly read and write data, thus improving system efficiency. Non-volatile memory is used for long-term storage of system programs, user test records, historical data, and other information, facilitating user retrieval and system data analysis.

[0110] Data Analysis Module: Utilizing various data analysis algorithms and models, this module performs in-depth analysis of the collected vehicle motion status information and simulated motion information. Based on the fluctuations of water in the cup, it calculates the vehicle's stability score and generates a detailed stability analysis report, including water surface fluctuation data, vehicle stability data, and historical comparison records, providing users with comprehensive and professional vehicle stability assessment results.

[0111] The display device is used to present the stability simulation images generated by the central control unit to the user. It includes: a display screen (such as an in-vehicle display screen) and a human-machine interface (integrating multiple interaction methods such as touch screen, buttons, and voice control). Users can directly operate the stability testing system through the touch screen, such as starting the test, viewing reports, and sharing records; buttons provide a quick operation method, facilitating simple operations while driving; the voice control function allows users to control the display device through voice commands, achieving contactless operation, improving ease of use and safety, and enabling users to interact with the stability testing system more conveniently to obtain the necessary information.

Claims

1. A stability characterization method for vehicles, characterized in that, The stability simulation image is displayed, which is used to characterize the stability information of the vehicle. The simulated motion information of the stability simulation image is obtained based on the motion state information of the vehicle.

2. The characterization method according to claim 1, characterized in that, The stability simulation image is set to have simulated physical properties, which include one or more of the following: solid stability, liquid flow, gravity, and mass.

3. The characterization method according to claim 1, characterized in that, The stability simulation image includes a container and a liquid, with the liquid placed in the container.

4. The characterization method according to claim 3, characterized in that, The simulated motion information of the container is obtained based on the motion state of the vehicle; the simulated motion information of the liquid is obtained based on the simulated motion information of the container; and the stability information of the vehicle is obtained based on the simulated motion information of the liquid.

5. The characterization method according to claim 1 or 4, characterized in that, The vehicle's motion status information includes one or more of the following: direction, gravity, acceleration value, angular velocity value, and balance.

6. The characterization method according to claim 4, characterized in that, The simulated motion information of the container includes one or more of acceleration, deceleration, shaking, and swaying, and the simulated motion of the liquid includes one or more of back-and-forth undulation, left-and-right undulation, and overflow.

7. The characterization method according to claim 4, characterized in that, The step of obtaining the vehicle's stability information based on the simulated motion information of the liquid further includes obtaining the vehicle's stability score and / or stability report based on the simulated motion information of the liquid.

8. The characterization method according to claim 7, characterized in that, The method further includes: recording the historical stability scores and / or stability reports of the vehicle, and obtaining a stability ranking list of the vehicle based on the historical stability scores and / or stability reports, wherein the stability ranking list includes one or more of the following: single-event ranking list, task ranking list, monthly / quarterly / yearly ranking list.

9. A stability characterization system for a vehicle, characterized in that, The stability testing system includes an information acquisition device, a central control device, and a display device. The information acquisition device is used to acquire the vehicle's motion state information and includes a sensor group and a communication interface. The central control device is used to generate the stability simulation image, generate simulated motion information of the stability simulation image based on the vehicle's motion state information, and obtain the vehicle's stability information based on the simulated motion information. The central control device includes a central processing unit, a graphics processing unit, a storage module, and a data analysis module. The display device is used to display the stability simulation image and includes a display screen and a human-machine interface.

10. An electronic device, characterized in that, include: Memory, used to store executable code; A processor for executing the executable code to implement the method of any one of claims 1-8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed in a computer, it causes the computer to perform the method described in any one of claims 1-8.

12. A computer program, characterized in that, The computer program includes instructions that, when executed, implement the method according to any one of claims 1-8.

13. A vehicle, characterized in that, Includes the electronic device as described in claim 10.

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