Vehicle behavior data processing method and system based on Internet of Vehicles, and computer equipment

Abstract

The invention relates to the technical field of the Internet of Vehicles, in particular to a vehicle behavior data processing method and system based on the Internet of Vehicles and computer equipment. According to the invention, through comprehensive analysis of the power supply charging and discharging efficiency, the transient response and the current transient response speed, the capability of monitoring and evaluating the health state of the power supply can be significantly improved; and the power supply current transient response time or the power supply voltage transient response time is selected according to the judgment result to obtain the vehicle-mounted power supply health evaluation result, so that the evaluation of the vehicle-mounted power supply health state is more comprehensive by considering the transient response characteristics of the current and the voltage at the same time, the response characteristics of the current and the voltage are emphasized, and the vehicle-mounted power supply health evaluation accuracy is improved. The comprehensive analysis can more deeply reveal the health condition of the power supply, thereby not only improving the accuracy and comprehensiveness of power supply health assessment, but also improving the real-time response capability and fault early warning capability of the system.

Description

Technical Field

[0001] This invention relates to the field of vehicle networking technology, and in particular to a method, system, and computer equipment for processing vehicle behavior data based on vehicle networking. Background Technology

[0002] Vehicle-to-everything (V2X) refers to a highly integrated intelligent network that connects different vehicles, transportation infrastructure, and service platforms through wireless communication technology via vehicle-to-vehicle, vehicle-to-infrastructure, and vehicle-to-cloud interconnections. With the development of the modern automotive industry, the degree of automotive electronics is increasing, and the number of automotive electronic control systems (fuel injection systems, anti-lock braking systems, airbags, etc.) is constantly increasing. These complex systems make real-time monitoring of the vehicle's power supply status particularly important. Currently, the battery performance of the vehicle's power supply is generally monitored in real time by connecting a voltage monitoring device to the vehicle's battery terminal. However, the above method can only monitor the real-time performance of the vehicle's power supply and cannot diagnose the impact of real-time transient voltage and current changes on the health status of the vehicle's power supply. Summary of the Invention

[0003] The main objective of this invention is to provide a vehicle behavior data processing method based on the Internet of Vehicles, aiming to solve the technical problems in the prior art.

[0004] This invention proposes a vehicle behavior data processing method based on the Internet of Vehicles (IoV), comprising: Obtain the on-board power supply characteristic information of the target vehicle, wherein the on-board power supply information includes power charging and discharging efficiency characteristic information and power performance characteristic information; The transient response waveform is obtained based on the power supply charging and discharging efficiency characteristic information, and the current transient response speed is obtained based on the transient response waveform. Determine whether the current transient response speed is less than the preset current transient response speed; If the current transient response speed is not less than the preset current transient response speed, then the power supply current information is obtained according to the power supply performance characteristic information, and the current difference value is obtained according to the power supply current information. The power supply current transient response time is obtained based on the current difference value and the current transient response speed, and the vehicle power supply health assessment result is obtained based on the power supply current transient response time. If the current transient response speed is less than the preset current transient response speed, then the voltage waveform diagram is obtained according to the power supply performance characteristic information, and the steady-state voltage is obtained according to the voltage waveform diagram. The transient response time of the power supply voltage is obtained based on the steady-state voltage and current transient response speeds, and the on-board power supply health assessment result is obtained based on the transient response time of the power supply voltage.

[0005] Preferably, the step of obtaining the transient response waveform based on the power supply charging and discharging efficiency characteristic information, and obtaining the current transient response speed based on the transient response waveform, includes: The initial current value is obtained based on the power supply charging and discharging efficiency characteristic information; Based on the initial current value, the peak current, steady-state current, and charging duration of the vehicle power supply during instantaneous charging are obtained. Based on the charging steady-state current, the valley current, the discharging steady-state current, and the discharging duration of the vehicle power supply during instantaneous discharge are obtained. With duration as the X-axis and current as the Y-axis, a time-current waveform diagram is established. The initial current value, peak current, steady-state charging current, charging duration, valley current, steady-state discharging current, and discharging duration are plotted as curves on the time-current waveform diagram to obtain the transient response waveform diagram. Based on the transient response waveform, obtain multiple current values ​​within a preset time period after the transient response ends; A steady-state value is obtained based on multiple current values, and the transient current response speed is obtained based on the steady-state value.

[0006] Preferably, the step of obtaining the current transient response speed based on the steady-state value includes: The first rising current value, the second rising current value, and the stable current value are obtained based on the steady-state value. The transient response waveform is analyzed based on the oscilloscope, the first rising current value, and the steady current value to obtain multiple first voltage transient change inflection points; The transient response waveform is truncated based on two adjacent inflection points of the first voltage transient change to obtain multiple first voltage transient change intervals; The first transient response speed is obtained based on multiple first voltage transient change intervals; The transient response waveform is analyzed based on the oscilloscope, the second rising current value, and the steady current value to obtain multiple second voltage transient change inflection points; The transient response waveform is truncated based on two adjacent inflection points of the second voltage transient change to obtain multiple second voltage transient change intervals; The second transient response speed is obtained based on multiple second voltage transient change intervals; The transient current response speed is obtained based on the first transient response speed and the second transient response speed.

[0007] Preferably, the step of obtaining the current difference value based on the power supply current information includes: Acquire the no-load current data of the power supply current information, wherein the no-load current data includes multiple first no-load currents and multiple second no-load currents; The difference value of the no-load current is obtained based on multiple first no-load currents and multiple second no-load currents; The load current data of the power supply current information is obtained, wherein the load current data includes multiple first load currents and multiple second load currents; The load current reduction rate value is obtained based on a plurality of first load currents and a plurality of second load currents; The current difference value is calculated based on the no-load current difference value and the load current descent rate value, wherein the calculation formula is: ; in, Indicates the difference in current. This indicates the difference in no-load current. This indicates the rate of decrease in load current.

[0008] Preferably, the step of obtaining the power supply voltage transient response time based on the steady-state voltage and current transient response speed includes: Obtain the load voltage and load current connected to the vehicle power supply; The output impedance is calculated based on the steady-state voltage, load voltage, and load current, using the following formula: ; in, Indicates the output impedance. Represents steady-state voltage. Indicates the load voltage. Indicates the load current; The current response duration is obtained based on the current transient response speed. The voltage change is obtained based on the current response time, current transient response speed, and output impedance. The transient response time of the power supply voltage is calculated based on the voltage change and the transient response speed of the current, wherein the calculation formula is: ; in, Indicates the transient response time of the power supply voltage. It represents the amount of voltage change. This indicates the transient response speed of the current.

[0009] Preferably, the step of obtaining the vehicle power supply health assessment result based on the power supply voltage transient response time includes: Obtain the preset power supply voltage transient response range; Determine the relationship between the power supply voltage transient response time and the preset power supply voltage transient response range; If the transient response time of the power supply voltage is greater than the upper limit of the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be excellent. If the power supply voltage transient response time is within the preset power supply voltage transient response range, the on-board power supply health assessment result is determined to be good. If the transient response time of the power supply voltage is less than the lower limit of the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be poor.

[0010] This application also provides a vehicle behavior data processing system based on the Internet of Vehicles, including: The first acquisition module is used to acquire the on-board power supply characteristic information of the target vehicle, wherein the on-board power supply information includes power charging and discharging efficiency characteristic information and power performance characteristic information. The second acquisition module is used to acquire a transient response waveform based on the power supply charging and discharging efficiency characteristic information, and to acquire the current transient response speed based on the transient response waveform. The judgment module is used to determine whether the current transient response speed is less than a preset current transient response speed; The third acquisition module is used to acquire power supply current information based on the power supply performance characteristic information and acquire current difference value based on the power supply current information if the current transient response speed is not less than the preset current transient response speed. The fourth acquisition module is used to acquire the power supply current transient response time based on the current difference value and the current transient response speed, and to acquire the vehicle power supply health assessment result based on the power supply current transient response time. The fifth acquisition module is used to acquire a voltage waveform diagram based on the power supply performance characteristic information and acquire a steady-state voltage based on the voltage waveform diagram if the current transient response speed is less than a preset current transient response speed. The sixth acquisition module is used to acquire the power supply voltage transient response time based on the steady-state voltage and current transient response speed, and to acquire the vehicle power supply health assessment result based on the power supply voltage transient response time.

[0011] Preferably, the second acquisition module includes: The first acquisition unit is used to acquire a first rising current value, a second rising current value, and a stable current value based on the steady-state value. The first analysis unit is used to analyze the transient response waveform based on the oscilloscope, the first rising current value, and the steady current value to obtain multiple first voltage transient change inflection points; The first interception unit is used to intercept the transient response waveform based on two adjacent first voltage transient change inflection points to obtain multiple first voltage transient change intervals; The second acquisition unit is used to acquire the first transient response speed based on multiple first voltage transient change intervals; The second analysis unit is used to analyze the transient response waveform based on the oscilloscope, the second rising current value, and the stable current value to obtain multiple second voltage transient change inflection points; The second interception unit is used to intercept the transient response waveform based on two adjacent inflection points of the second voltage transient change, thereby obtaining multiple second voltage transient change intervals; The third acquisition unit is used to acquire the second transient response speed based on multiple second voltage transient change intervals; The fourth acquisition unit is used to acquire the current transient response speed based on the first transient response speed and the second transient response speed.

[0012] The present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the above-described vehicle behavior data processing method based on the Internet of Vehicles.

[0013] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the above-described vehicle behavior data processing method based on the Internet of Vehicles.

[0014] The beneficial effects of this invention are as follows: By acquiring and analyzing transient response waveforms, this invention can better understand the behavior of the vehicle power supply under sudden load changes. Furthermore, by analyzing charging and discharging efficiency characteristics and transient response speed, a more accurate assessment of the vehicle power supply's health status can be achieved. Through comprehensive analysis of power supply charging and discharging efficiency, transient response, and current transient response speed, the monitoring and assessment capabilities of the power supply's health status can be significantly improved. This not only enables real-time monitoring of power supply performance but also effectively diagnoses the impact of transient voltage and current changes on the vehicle power supply's health status. By acquiring current difference values ​​and analyzing the power supply current transient response time, the vehicle power supply health assessment no longer relies solely on static performance characteristics but also considers transient response and dynamic characteristics. This method calculates the voltage transient response time of the vehicle power supply by combining the steady-state voltage and current transient response speeds, providing a quantitative indicator of the vehicle power supply's dynamic performance. By judging whether the current transient response speed is less than a preset value, and selecting either the power supply current transient response time or the power supply voltage transient response time based on the judgment result, the vehicle power supply health assessment result is obtained. In this way, by simultaneously considering the transient response characteristics of current and voltage, the assessment of the vehicle power supply's health status is more comprehensive. The response characteristics of current and voltage each have their own emphasis, and comprehensive analysis can reveal the health status of the power supply more deeply. This not only improves the accuracy and comprehensiveness of the power supply health assessment, but also enhances the system's real-time response capability and fault early warning capability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a method flow according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the device structure according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of a computer device according to an embodiment of this application.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] like Figures 1-3 As shown, this application provides a vehicle behavior data processing method based on the Internet of Vehicles, including: S1. Obtain the on-board power supply characteristic information of the target vehicle, wherein the on-board power supply information includes power charging and discharging efficiency characteristic information and power performance characteristic information. S2. Obtain the transient response waveform based on the power supply charging and discharging efficiency characteristic information, and obtain the current transient response speed based on the transient response waveform; S3. Determine whether the current transient response speed is less than the preset current transient response speed; S4. If the current transient response speed is not less than the preset current transient response speed, then obtain the power supply current information according to the power supply performance characteristic information, and obtain the current difference value according to the power supply current information. S5. Obtain the power supply current transient response time based on the current difference value and the current transient response speed, and obtain the vehicle power supply health assessment result based on the power supply current transient response time. S6. If the current transient response speed is less than the preset current transient response speed, then obtain the voltage waveform diagram according to the power supply performance characteristic information, and obtain the steady-state voltage according to the voltage waveform diagram. S7. Obtain the power supply voltage transient response time based on the steady-state voltage and current transient response speed, and obtain the vehicle power supply health assessment result based on the power supply voltage transient response time.

[0021] As described in steps S1-S7 above, the vehicle network refers to a highly integrated intelligent network that connects different vehicles, transportation infrastructure, and service platforms through interconnection methods such as vehicle-to-vehicle, vehicle-to-road, and vehicle-to-cloud based on wireless communication technology. With the development of the modern automotive industry, the degree of automotive electronics is increasing, and the number of automotive electronic control systems (fuel injection system, anti-lock braking system, airbags, etc.) is constantly increasing. These complex systems make real-time monitoring of the vehicle's power supply status particularly important. Currently, the battery performance of the vehicle's power supply is generally monitored in real time by connecting a voltage monitoring device to the vehicle's battery terminal. However, the above method can only monitor the real-time performance of the vehicle's power supply and cannot diagnose the impact of real-time transient voltage and current changes on the health status of the vehicle's power supply. This invention acquires the charging and discharging efficiency characteristics and performance characteristics of the vehicle's onboard power supply. Based on the charging and discharging efficiency characteristics, it obtains a transient response waveform, and then uses this waveform to determine the current transient response speed. The current transient response speed refers to the power supply's ability to rapidly change current to a steady-state level when subjected to sudden load changes or transient variations. By acquiring and analyzing the transient response waveform, the behavior of the onboard power supply during load changes can be better understood. Furthermore, by analyzing the charging and discharging efficiency characteristics and the transient response speed, a more accurate assessment of the onboard power supply's health can be made. For example, if the current transient response speed is outside the expected range, it may indicate aging or a fault in the onboard power supply. Through comprehensive analysis of the power supply's charging and discharging efficiency, transient response, and current transient response speed, a more accurate assessment of the onboard power supply's health status can be achieved. This significantly enhances the monitoring and assessment capabilities of power supply health. It not only monitors power supply performance in real time but also effectively diagnoses the impact of transient voltage and current changes on the health of the vehicle power supply. By determining whether the current transient response speed is less than a preset current transient response speed, and if it is not less than the preset speed, the power supply current information is obtained based on power supply performance characteristics. The current difference value is then calculated based on this current difference value and the current transient response speed. The power supply current transient response time refers to the time required for the current to change from its initial value to a stable value when the load undergoes a sudden change (such as a momentary increase or decrease in load). The formula for calculating the power supply current transient response time based on the current difference value and the current transient response speed is as follows: ;in, This indicates the transient response time of the power supply current. Indicates the difference in current. This indicates the transient response speed of the current, and the health assessment results of the vehicle power supply are obtained based on the power supply's transient response time. By determining whether the transient response speed is less than the preset transient response speed, the responsiveness of the vehicle power supply to load changes can be clearly defined. Real-time monitoring of the transient response speed provides a more comprehensive reflection of the power supply's dynamic performance. By acquiring current difference values ​​and analyzing the power supply's transient response time, the health assessment of the vehicle power supply no longer relies solely on static performance characteristics but considers transient response and dynamic changes. This approach better reflects the power supply's operating status and health level in actual applications. If the transient response speed is less than the preset transient response speed, voltage fluctuations are obtained based on the power supply performance characteristic information. The system analyzes voltage waveforms to obtain steady-state voltage. Then, it calculates the power supply voltage transient response time based on the steady-state voltage and current transient response speed. The power supply voltage transient response time refers to the time required for the voltage to change from its initial value to its steady-state value when the load or input conditions undergo sudden changes (such as rapid load changes or input voltage fluctuations). The system uses this transient response time to obtain the vehicle power supply health assessment results. By monitoring the voltage waveform to obtain the steady-state voltage, a more comprehensive assessment of the vehicle power supply performance is provided. Monitoring the steady-state voltage ensures the stability of the power supply under continuous load, thus more accurately reflecting the overall health status of the vehicle power supply. The system calculates the vehicle power supply health by combining the steady-state voltage and current transient response speed. The voltage transient response time of the on-board power supply provides a quantifiable indicator of its dynamic performance. By combining voltage waveform, steady-state voltage, and current transient response speed, a comprehensive health assessment model can be established, making the health status assessment of the on-board power supply more accurate and comprehensive. This assessment considers multiple factors, rather than relying on a single parameter. By combining current transient response speed with voltage waveform analysis, a more comprehensive and accurate assessment of the on-board power supply's health status is achieved. The model determines whether the current transient response speed is less than a preset value, and based on the determination result, selects either the power supply current transient response time or the power supply voltage transient response time to obtain the on-board power supply health assessment result. This approach, by simultaneously considering both current and voltage... Transient response characteristics enable a more comprehensive assessment of the health status of on-board power supplies. Current and voltage response characteristics each have their own emphasis, and comprehensive analysis can reveal the health status of the power supply more deeply. Based on the judgment of the current transient response speed, appropriate assessment indicators can be accurately selected. If the current response is good, more emphasis is placed on the current aspect assessment; while if the current response is insufficient, the emphasis is placed on voltage stability. This can more accurately reflect the actual health status of the power supply. By judging the current transient response speed to select the monitoring path, unnecessary data processing and analysis can be avoided, saving computing resources and time. This not only improves the accuracy and comprehensiveness of power supply health assessment, but also enhances the system's real-time response capability and fault early warning capability.

[0022] In one embodiment, step S2, which involves obtaining a transient response waveform based on the power supply charging and discharging efficiency characteristic information and obtaining the current transient response speed based on the transient response waveform, includes: S21. Obtain the initial current value based on the power supply charging and discharging efficiency characteristic information; S22. Based on the initial current value, obtain the peak current, steady-state charging current and charging time of the vehicle power supply during instantaneous charging; S23. Based on the charging steady-state current, obtain the valley current, discharge steady-state current and discharge duration of the vehicle power supply during instantaneous discharge; S24. Establish a time-current waveform diagram with duration as the X-axis and current as the Y-axis, and plot the initial current value, peak current, steady-state charging current, charging duration, valley current, steady-state discharging current, and discharging duration as curves on the time-current waveform diagram to obtain the transient response waveform diagram. S25. Obtain multiple current values ​​within a preset time period after the transient response ends based on the transient response waveform diagram; S26. Calculate the steady-state value based on the multiple current values, wherein the calculation formula is: ; in, Represents the steady-state value. Indicates the first A current value The serial number representing the current value. Indicates the number of current values; S27. Obtain the transient response speed of the current based on the steady-state value.

[0023] As described in steps S21-S27 above, this invention obtains the initial current value through the power supply charging and discharging efficiency characteristic information. Then, based on the initial current value, it obtains the peak current, steady-state charging current, and charging duration of the vehicle power supply during instantaneous charging, as well as the valley current, steady-state discharging current, and discharging duration of the vehicle power supply during instantaneous discharging. A time-current waveform diagram is established with duration as the X-axis and current as the Y-axis. The initial current value, peak current, steady-state charging current, charging duration, valley current, steady-state discharging current, and discharging duration are then plotted as curves on the time-current waveform diagram to obtain a transient response waveform diagram. By establishing the time-current waveform diagram and plotting the transient response waveform... Transient response waveforms allow for detailed analysis of the charging and discharging characteristics of on-board power supplies. By deriving peak and steady-state currents from initial current values, it's possible to better understand the performance of the on-board power supply during instantaneous charging and discharging. Furthermore, constructing transient response waveforms provides a better assessment of the on-board power supply's responsiveness to sudden load changes. Rapid current variations (such as peak and valley values ​​during charging and discharging) directly reflect the dynamic performance of the on-board power supply. Transient response waveforms also allow for a clearer identification of the impact of current changes on the health of the on-board power supply. For example, sustained high peak currents may indicate potential overload risks, while abnormal changes in valley currents may indicate other issues. To reflect the degradation of power supply performance, by establishing a time-current waveform diagram based on the power supply's charging and discharging characteristics and analyzing the transient response waveform, the dynamic performance of the vehicle power supply can be effectively monitored and evaluated. This identifies the impact of transient current changes on the power supply's health status. Multiple current values ​​are obtained from the transient response waveform diagram within a preset time period after the transient response ends. Then, the steady-state value is calculated based on these multiple current values. The transient response speed is obtained from the steady-state value. By obtaining multiple current values ​​after the transient response ends, the steady-state value of the vehicle power supply can be accurately calculated. This process provides a quantitative basis for evaluating the performance of the vehicle power supply under stable operating conditions and helps identify the vehicle power supply's performance under different operating conditions. By assessing the performance under load and obtaining the transient current response speed, the on-board power supply's ability to respond to transient load changes can be identified. A fast response speed means that the on-board power supply can quickly adjust to maintain current stability during instantaneous load fluctuations, reflecting the health status of the power supply. By acquiring the current value after the transient response ends and calculating the steady-state value and transient response speed, this method can deeply analyze the performance of the on-board power supply under transient conditions and identify changes in the power supply's health status. This dynamic analysis not only improves the accuracy of monitoring but also enhances the fault early warning capability, providing a guarantee for the reliable operation of the on-board power supply and ultimately achieving a comprehensive diagnosis and optimization of the on-board power supply's health status.

[0024] In one embodiment, step S27 of obtaining the current transient response speed based on the steady-state value includes: S271. Obtain the first rising current value, the second rising current value, and the stable current value based on the steady-state value; S272. Analyze the transient response waveform based on the oscilloscope, the first rising current value, and the steady current value to obtain multiple first voltage transient change inflection points; S273. The transient response waveform is truncated based on two adjacent first voltage transient change inflection points to obtain multiple first voltage transient change intervals; S274. Obtain the first transient response speed based on multiple first voltage transient change intervals; S275. Analyze the transient response waveform based on the oscilloscope, the second rising current value, and the stable current value to obtain multiple second voltage transient change inflection points; S276. Based on two adjacent transition points of the second voltage transient change, the transient response waveform is truncated to obtain multiple transition intervals of the second voltage transient change; S277. Obtain the second transient response speed based on multiple second voltage transient change intervals; S278. Obtain the current transient response speed based on the first transient response speed and the second transient response speed.

[0025] As described in steps S271-S278 above, this invention obtains the first rising current value, the second rising current value, and the stable current value through steady-state values. Then, based on the oscilloscope, the first rising current value, and the stable current value, it analyzes the transient response waveform to obtain multiple first voltage transient change inflection points. Next, based on two adjacent first voltage transient change inflection points, it intercepts the transient response waveform to obtain multiple first voltage transient change intervals. Based on these multiple first voltage transient change intervals, it obtains the first transient response speed. By analyzing the transient response waveform, voltage inflection points during the transient rising change process can be accurately identified. This process provides a deeper understanding of the dynamic characteristics of voltage changes and helps identify the impact of transient response on the performance of the vehicle power supply. By analyzing the first rising current value, the second rising current value, and the stable current value, the changes in current and voltage can be correlated. Analysis provides a comprehensive evaluation basis for the performance of the vehicle power supply under different operating conditions. Calculating the first transient response speed can reveal the power supply's ability to react to instantaneous load changes. If the transient response speed is slow, it may indicate problems such as overload or loss in the power supply. By obtaining the voltage inflection point and transient response speed of the transient response waveform, the performance of the vehicle power supply under transient conditions can be comprehensively evaluated. Similarly, the method of obtaining the second transient response speed can accurately identify the voltage inflection point in the transient drop process. The current transient response speed can be calculated by summing the first and second transient response speeds. By deriving the current transient response speed from the first and second transient response speeds, a more comprehensive understanding of the dynamic performance of the power supply under different transient conditions can be obtained. This comprehensive evaluation can reveal the adaptability and stability of the power supply in response to transient load changes.

[0026] In one embodiment, step S4, which involves obtaining the current difference value based on the power supply current information, includes: S41. Obtain the no-load current data of the power supply current information, wherein the no-load current data includes a plurality of first no-load currents and a plurality of second no-load currents; S42. Obtain the no-load current difference value based on the plurality of first no-load currents and the plurality of second no-load currents; S43. Obtain the load current data of the power supply current information, wherein the load current data includes a plurality of first load currents and a plurality of second load currents; S44. Obtain the load current reduction rate value based on the plurality of first load currents and the plurality of second load currents; S45. Calculate the current difference value based on the no-load current difference value and the load current descent rate value, wherein the calculation formula is: ; in, Indicates the difference in current. This indicates the difference in no-load current. This indicates the rate of decrease in load current.

[0027] As described in steps S41-S45 above, the present invention obtains multiple first no-load currents and multiple second no-load currents of power supply current information, and obtains the no-load current difference value based on the multiple first no-load currents and multiple second no-load currents, wherein the calculation formula is: ;in, This indicates the difference in no-load current. Indicates the first The first no-load current. Indicates the first The second no-load current, Indicates the sequence number of the first no-load current. Indicates the sequence number of the second no-load current. This represents the quantity of the first no-load current. Multiple first load currents and multiple second load currents are obtained by acquiring power supply current information, and then the load current reduction rate is obtained based on these multiple first load currents and multiple second load currents. The calculation formula is as follows: ;in, This indicates the rate of decrease in load current. Indicates the first The first load current Indicates the first The second load current, Indicates the sequence number of the first load current. This indicates the quantity of the first load current. The current difference value is calculated based on the no-load current difference value and the load current reduction rate value. The first no-load current and the first load current refer to the no-load current and load current of the vehicle power supply during charging, respectively. The second no-load current and the second load current refer to the no-load current and load current of the vehicle power supply during discharging, respectively. By analyzing multiple first and second no-load currents and first and second load currents, a comprehensive understanding of the power supply's performance under different load conditions can be achieved, thereby identifying the response characteristics of the vehicle power supply under no-load and load states. By calculating the no-load current difference value and the load current reduction rate, the current response of the vehicle power supply during load changes can be quantified. This quantitative analysis helps to better understand the dynamic changes in power supply performance. By analyzing the current difference value, the health status of the power supply under transient load changes can be identified. For example, if the current difference value is too high, it may indicate an abnormality or potential fault in the power supply. The integrated monitoring mechanism of no-load current difference and load current reduction rate can reflect the working status of the vehicle power supply in real time. By calculating the no-load current difference value, the load current reduction rate, and the current difference value, the performance of the vehicle power supply under transient conditions can be monitored and evaluated more comprehensively and accurately.

[0028] In one embodiment, step S7, which involves obtaining the power supply voltage transient response time based on the steady-state voltage and current transient response speeds, includes: S71. Obtain the load voltage and load current connected to the vehicle power supply; S72. Calculate the output impedance based on the steady-state voltage, load voltage, and load current, wherein the calculation formula is: ; in, Indicates the output impedance. Represents steady-state voltage. Indicates the load voltage. Indicates the load current; S73. Obtain the current response duration based on the current transient response speed; S74. Obtain the voltage change based on the current response time, current transient response speed, and output impedance; S75. Calculate the power supply voltage transient response time based on the voltage change and current transient response speed, wherein the calculation formula is: ; in, Indicates the transient response time of the power supply voltage. It represents the amount of voltage change. This indicates the transient response speed of the current.

[0029] As described in steps S71-S75 above, this invention obtains the load voltage and load current connected to the vehicle power supply, then calculates the output impedance based on the steady-state voltage, load voltage, and load current. It obtains the current response time based on the current transient response speed, obtains the voltage change based on the current response time, current transient response speed, and output impedance, and calculates the power supply voltage transient response time based on the voltage change and current transient response speed. By calculating the output impedance, the capability of the vehicle power supply under different load conditions can be evaluated. This helps to understand the adaptability of the vehicle power supply to load changes and its stability under load changes. By acquiring the transient response speed and response time of the current, the responsiveness of the power supply to transient loads can be quantified. This assessment helps to determine the performance of the vehicle power supply under rapid load changes. Calculating the voltage change based on the current response time, output impedance, and transient response speed reveals the impact of load changes on the power supply's output voltage. By acquiring the load voltage and load current, and calculating the output impedance and power supply voltage transient response time, the performance of the vehicle power supply under transient conditions can be evaluated more comprehensively and accurately. This not only enables timely identification of the power supply's health status and potential problems but also improves the reliability and safety of the vehicle power supply.

[0030] In one embodiment, step S7, which involves obtaining the on-board power supply health assessment result based on the power supply voltage transient response time, includes: S79. Obtain the preset power supply voltage transient response range; S80. Determine the relationship between the power supply voltage transient response time and the preset power supply voltage transient response range; If the transient response time of the power supply voltage is greater than the upper limit of the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be excellent. If the power supply voltage transient response time is within the preset power supply voltage transient response range, the on-board power supply health assessment result is determined to be good. If the transient response time of the power supply voltage is less than the lower limit of the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be poor.

[0031] As described in steps S79-S80 above, this invention determines the health assessment result of the vehicle power supply by judging the relationship between the transient response time of the power supply voltage and the preset transient response range of the power supply voltage. If the transient response time of the power supply voltage is greater than the upper limit of the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be excellent. If it is less than the lower limit of the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be poor. If it is within the preset transient response range of the power supply voltage, the health assessment result of the vehicle power supply is determined to be good. By setting the preset transient response range of the power supply voltage, the health assessment of the vehicle power supply has clear standards and basis. By judging the relationship between the transient response time of the power supply voltage and the preset range, dynamic monitoring and accurate assessment of the health status of the vehicle power supply can be achieved.

[0032] This application also provides a vehicle behavior data processing system based on the Internet of Vehicles, including: The first acquisition module is used to acquire the on-board power supply characteristic information of the target vehicle, wherein the on-board power supply information includes power charging and discharging efficiency characteristic information and power performance characteristic information. The second acquisition module is used to acquire a transient response waveform based on the power supply charging and discharging efficiency characteristic information, and to acquire the current transient response speed based on the transient response waveform. The judgment module is used to determine whether the current transient response speed is less than a preset current transient response speed; The third acquisition module is used to acquire power supply current information based on the power supply performance characteristic information and acquire current difference value based on the power supply current information if the current transient response speed is not less than the preset current transient response speed. The fourth acquisition module is used to acquire the power supply current transient response time based on the current difference value and the current transient response speed, and to acquire the vehicle power supply health assessment result based on the power supply current transient response time. The fifth acquisition module is used to acquire a voltage waveform diagram based on the power supply performance characteristic information and acquire a steady-state voltage based on the voltage waveform diagram if the current transient response speed is less than a preset current transient response speed. The sixth acquisition module is used to acquire the power supply voltage transient response time based on the steady-state voltage and current transient response speed, and to acquire the vehicle power supply health assessment result based on the power supply voltage transient response time.

[0033] In one embodiment, the second acquisition module includes: The first acquisition unit is used to acquire a first rising current value, a second rising current value, and a stable current value based on the steady-state value. The first analysis unit is used to analyze the transient response waveform based on the oscilloscope, the first rising current value, and the steady current value to obtain multiple first voltage transient change inflection points; The first interception unit is used to intercept the transient response waveform based on two adjacent first voltage transient change inflection points to obtain multiple first voltage transient change intervals; The second acquisition unit is used to acquire the first transient response speed based on multiple first voltage transient change intervals; The second analysis unit is used to analyze the transient response waveform based on the oscilloscope, the second rising current value, and the stable current value to obtain multiple second voltage transient change inflection points; The second interception unit is used to intercept the transient response waveform based on two adjacent inflection points of the second voltage transient change, thereby obtaining multiple second voltage transient change intervals; The third acquisition unit is used to acquire the second transient response speed based on multiple second voltage transient change intervals; The fourth acquisition unit is used to acquire the current transient response speed based on the first transient response speed and the second transient response speed.

[0034] The present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the above-described vehicle behavior data processing method based on the Internet of Vehicles.

[0035] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the above-described vehicle behavior data processing method based on the Internet of Vehicles.

[0036] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in this application and in the embodiments can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual-speed SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0037] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0038] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A vehicle behavior data processing method based on Internet of Vehicles, characterized in that, The method comprises the following steps: acquiring power supply feature information of a target vehicle, wherein the power supply feature information comprises power supply charging and discharging efficiency feature information and power supply performance feature information; acquiring a transient response waveform based on the power supply charging and discharging efficiency feature information, and acquiring a current transient response speed based on the transient response waveform; determining whether the current transient response speed is less than a preset current transient response speed; if the current transient response speed is not less than the preset current transient response speed, acquiring power supply current information based on the power supply performance feature information, and acquiring a current difference value based on the power supply current information; acquiring a power supply current transient response time based on the current difference value and the current transient response speed, and acquiring a vehicle-mounted power supply health evaluation result based on the power supply current transient response time; if the current transient response speed is less than the preset current transient response speed, acquiring a voltage waveform based on the power supply performance feature information, and acquiring a steady-state voltage based on the voltage waveform; acquiring a power supply voltage transient response time based on the steady-state voltage and the current transient response speed, and acquiring a vehicle-mounted power supply health evaluation result based on the power supply voltage transient response time. 2.The vehicle behavior data processing method based on the Internet of Vehicles according to claim 1, characterized in that, The step of acquiring a transient response waveform based on the power supply charging and discharging efficiency feature information, and acquiring a current transient response speed based on the transient response waveform, comprises the following steps: acquiring a current initial value based on the power supply charging and discharging efficiency feature information; acquiring a peak current, a charging steady-state current and a charging time length of the vehicle-mounted power supply when instantaneously charging based on the current initial value; acquiring a valley current, a discharging steady-state current and a discharging time length of the vehicle-mounted power supply when instantaneously discharging based on the charging steady-state current; establishing a time-current waveform graph with time as the X-axis and current as the Y-axis, and drawing the current initial value, the peak current, the charging steady-state current, the charging time length, the valley current, the discharging steady-state current and the discharging time length on the time-current waveform graph by a curve to obtain the transient response waveform; acquiring a plurality of current values in a preset time period after the transient response based on the transient response waveform; acquiring a steady-state value based on the plurality of current values, and acquiring a current transient response speed based on the steady-state value. 3.The vehicle behavior data processing method based on the Internet of Vehicles according to claim 2, characterized in that, The step of acquiring a current transient response speed based on the steady-state value, comprises the following steps: acquiring a first rising current value, a second rising current value and a stable current value based on the steady-state value; analyzing the transient response waveform based on an oscilloscope, the first rising current value and the stable current value to obtain a plurality of first voltage transient change breakpoints; intercepting the transient response waveform based on adjacent two first voltage transient change breakpoints to obtain a plurality of first voltage transient change intervals; acquiring a first transient response speed based on the plurality of first voltage transient change intervals; analyzing the transient response waveform based on an oscilloscope, the second rising current value and the stable current value to obtain a plurality of second voltage transient change breakpoints; intercepting the transient response waveform based on adjacent two second voltage transient change breakpoints to obtain a plurality of second voltage transient change intervals; acquiring a second transient response speed based on the plurality of second voltage transient change intervals; The current transient response speed is obtained according to the first transient response speed and the second transient response speed. 4.The vehicle behavior data processing method based on the Internet of Vehicles according to claim 1, characterized in that, The step of obtaining the current difference value according to the power supply current information comprises: obtaining no-load current data of the power supply current information, wherein the no-load current data comprises a plurality of first no-load currents and a plurality of second no-load currents; obtaining a no-load current difference value according to the plurality of first no-load currents and the plurality of second no-load currents; obtaining load current data of the power supply current information, wherein the load current data comprises a plurality of first load currents and a plurality of second load currents; obtaining a load current reduction rate value according to the plurality of first load currents and the plurality of second load currents; The current difference value is calculated according to the no-load current difference value and the load current reduction rate value, and the calculation formula is: ; wherein, represents a current difference value, represents an idle current difference value, represents a load current reduction rate value. 5.The vehicle behavior data processing method based on the Internet of Vehicles according to claim 1, characterized in that, The step of obtaining the power supply voltage transient response time according to the steady-state voltage and the current transient response speed comprises: obtaining load voltage and load current connected with the vehicle-mounted power supply; calculating the output impedance according to the steady-state voltage, the load voltage and the load current, wherein the calculation formula is: ； wherein, represents an output impedance, represents a steady state voltage, represents a load voltage, represents a load current; obtaining a current response duration according to the current transient response speed; obtaining a voltage variation according to the current response duration, the current transient response speed and the output impedance; calculating the power supply voltage transient response time according to the voltage variation and the current transient response speed, wherein the calculation formula is: ； wherein, represents the power supply voltage transient response time, represents the voltage variation amount, represents the current transient response speed. 6.The vehicle behavior data processing method based on the Internet of Vehicles according to claim 1, characterized in that, The step of obtaining the vehicle-mounted power supply health evaluation result according to the power supply voltage transient response time comprises: obtaining a preset power supply voltage transient response interval; judging the relationship between the power supply voltage transient response time and the preset power supply voltage transient response interval; if the power supply voltage transient response time is greater than the upper limit value of the preset power supply voltage transient response interval, determining that the vehicle-mounted power supply health evaluation result is excellent; if the power supply voltage transient response time is located in the preset power supply voltage transient response interval, determining that the vehicle-mounted power supply health evaluation result is good; if the power supply voltage transient response time is less than the lower limit value of the preset power supply voltage transient response interval, determining that the vehicle-mounted power supply health evaluation result is poor. 7.A vehicle behavior data processing system based on Internet of Vehicles, characterized in that, comprise: The first obtaining module is used for obtaining vehicle-mounted power supply characteristic information of a target vehicle, wherein the vehicle-mounted power supply information comprises power supply charging and discharging efficiency characteristic information and power supply performance characteristic information. The second obtaining module is used for obtaining a transient response waveform according to the power supply charging and discharging efficiency characteristic information, and obtaining a current transient response speed according to the transient response waveform. The judging module is used for judging whether the current transient response speed is less than a preset current transient response speed. The third obtaining module is used for obtaining power supply current information according to the power supply performance characteristic information if the current transient response speed is not less than the preset current transient response speed, and obtaining a current difference value according to the power supply current information. The fourth obtaining module is used for obtaining a power supply current transient response time according to the current difference value and the current transient response speed, and obtaining a vehicle-mounted power supply health evaluation result according to the power supply current transient response time. The fifth obtaining module is used for obtaining a voltage waveform according to the power supply performance characteristic information if the current transient response speed is less than the preset current transient response speed, and obtaining a steady-state voltage according to the voltage waveform. The sixth obtaining module is configured to obtain a power supply voltage transient response time according to the steady-state voltage and the current transient response speed, and obtain a vehicle-mounted power supply health evaluation result according to the power supply voltage transient response time. 8.The Internet of Vehicles based vehicle behavior data processing system according to claim 7, characterized in that, The second obtaining module comprises: The first obtaining unit is configured to obtain a first rising current value, a second rising current value and a stable current value according to the steady-state value; The first analyzing unit is configured to analyze the transient response waveform diagram according to the oscilloscope, the first rising current value and the stable current value, to obtain a plurality of first voltage transient change breakpoints; The first intercepting unit is configured to intercept the transient response waveform diagram according to two adjacent first voltage transient change breakpoints, to obtain a plurality of first voltage transient change intervals; The second obtaining unit is configured to obtain a first transient response speed according to the plurality of first voltage transient change intervals; The second analyzing unit is configured to analyze the transient response waveform diagram according to the oscilloscope, the second rising current value and the stable current value, to obtain a plurality of second voltage transient change breakpoints; The second intercepting unit is configured to intercept the transient response waveform diagram according to two adjacent second voltage transient change breakpoints, to obtain a plurality of second voltage transient change intervals; The third obtaining unit is configured to obtain a second transient response speed according to the plurality of second voltage transient change intervals; The fourth obtaining unit is configured to obtain a current transient response speed according to the first transient response speed and the second transient response speed. 9.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-8 when the computer program is executed by the processor. The processor, when executing the computer program, implements the steps of the method in any one of claims 1 to 6.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program, when executed by the processor, implements the steps of the method in any one of claims 1 to 6.

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