Electric vehicle endurance mileage calculation method, device and equipment and storage medium

Abstract

The application discloses a kind of electric vehicle endurance mileage calculation method, device, equipment and storage medium, it is related to electric vehicle technical field, and the application is by obtaining the running information and historical display endurance mileage of electric vehicle;According to the running information, endurance mileage base value and vehicle driving flag bit are obtained;According to the running information, the historical display endurance mileage, the endurance mileage base value and the vehicle driving flag bit obtain target display endurance mileage, solve how to accurately calculate the endurance mileage that electric vehicle should display problem, improve the calculation precision and the accuracy of display of electric vehicle endurance mileage.

Description

Technical Field

[0001] This application relates to the technical field of electric vehicles, and in particular to a method, apparatus, device and storage medium for calculating the driving range of an electric vehicle. Background Technology

[0002] With increasing global focus on environmental protection and energy conservation, electric vehicles (EVs) are gradually becoming the mainstream trend in the automotive market due to their numerous advantages, including energy efficiency, high performance, low or zero emissions, low noise, rapid acceleration, and low operating costs. As technology continues to advance and consumer acceptance of EVs increases, the EV market is experiencing rapid growth, with major automakers increasing their R&D efforts to improve EV performance and user experience.

[0003] Among the many performance indicators of electric vehicles, driving range is one of the factors that consumers care about most. Because electric vehicles suffer from range anxiety—the uncertainty users have about the vehicle's remaining range—users often need to frequently check the battery level and remaining range in actual use, thus affecting the driving experience and satisfaction.

[0004] Therefore, how to accurately calculate the driving range that an electric vehicle should display is a problem that urgently needs to be solved. Summary of the Invention

[0005] The main objective of this application is to provide a method, apparatus, device, and storage medium for calculating the driving range of an electric vehicle, aiming to solve the technical problem of how to accurately calculate the driving range that an electric vehicle should display.

[0006] To achieve the above objectives, this application proposes a method for calculating the driving range of an electric vehicle, the method comprising:

[0007] Obtain the operating information and historical driving range of the electric vehicle;

[0008] Based on the aforementioned operational information, the basic value of the driving range and the vehicle driving indicator position are obtained;

[0009] The target displayed driving range is obtained based on the operating information, the historical displayed driving range, the basic driving range value, and the vehicle driving position.

[0010] In one embodiment, the operating information includes PEPS button activation request, vehicle speed, battery level, battery health, total mileage, PTC operating flag, ambient temperature, and air conditioning operating flag; the step of obtaining the basic driving range value and vehicle driving flag based on the operating information includes:

[0011] Get the duration of the key press;

[0012] The vehicle driving indicator position is determined based on the PEPS button activation request, the vehicle speed, and the button duration.

[0013] The battery health correction coefficient is obtained based on the PEPS button activation request, the battery health status, and the total driving mileage.

[0014] The low-temperature correction coefficient is obtained based on the vehicle driving indicator, the PTC working indicator, and the ambient temperature.

[0015] The high-temperature driving range correction value is obtained based on the vehicle driving indicator, the air conditioning working indicator, and the ambient temperature.

[0016] The base range value is obtained based on the battery charge, the battery health correction factor, the low temperature correction factor, and the high temperature range correction value.

[0017] In one embodiment, the step of obtaining the battery health correction coefficient based on the PEPS button activation request, the battery health status, and the total mileage includes:

[0018] The average battery health is obtained based on the PEPS button activation request.

[0019] The battery's first health level is obtained based on the battery health level and the average battery health level.

[0020] The second battery health status is obtained based on the total mileage traveled.

[0021] The battery health correction coefficient is obtained based on the total mileage, the first battery health status, and the second battery health status.

[0022] In one embodiment, the step of obtaining the low-temperature correction coefficient based on the vehicle driving indicator, the PTC operating indicator, and the ambient temperature includes:

[0023] Determine the first low-temperature correction factor and the second low-temperature correction factor based on the ambient temperature;

[0024] The low-temperature correction coefficient is obtained based on the vehicle driving indicator, the PTC working indicator, the first low-temperature correction coefficient, and the second low-temperature correction coefficient.

[0025] In one embodiment, the operating information includes a PEPS button activation request, battery level, and total mileage; the step of obtaining the target displayed mileage based on the operating information, the historical displayed mileage, the baseline mileage value, and the vehicle driving indicator includes:

[0026] Based on the PEPS button activation request, the stored battery level, stored total mileage, and short flag of the time count are obtained;

[0027] The reference driving range is obtained based on the battery charge, the total driving mileage, the historical displayed driving range, the stored battery charge, the stored total driving mileage, the short time count flag, the base driving range value, and the vehicle driving flag.

[0028] The target displayed driving range is obtained based on the historical driving range, the short time count flag, and the reference driving range.

[0029] In one embodiment, the step of obtaining a reference driving range based on the battery charge, the total mileage driven, the historical displayed driving range, the stored battery charge, the stored total mileage driven, the short time count flag, the base driving range value, and the vehicle driving flag includes:

[0030] The status of the first flag bit of the driving range is determined based on the battery charge, the stored battery charge, the total mileage driven, the stored total mileage driven, the base value of the driving range, the historical displayed driving range, and the short flag bit of the time count.

[0031] The reference range flag status is determined based on the total mileage driven, the historical displayed range, the vehicle driving flag, and the status of the first range flag.

[0032] The reference driving range is determined based on the status of the reference driving range flag.

[0033] In one embodiment, the step of obtaining the target displayed driving range based on the historical displayed driving range, the short time count flag, and the reference driving range includes:

[0034] The change in driving range and the reduction in driving range flag are obtained based on the historical driving range and the reference driving range.

[0035] The driving range change step size, driving range increase interval, and driving range decrease interval are determined based on the reference driving range.

[0036] The target displayed driving range is obtained from the short time count flag, the driving range change value, the driving range decrease flag, the driving range change step size, the driving range increase interval time, the driving range decrease interval time, the historical displayed driving range, and the reference driving range.

[0037] Furthermore, to achieve the above objectives, this application also proposes an electric vehicle range calculation device, the device comprising:

[0038] The information acquisition module is used to acquire the electric vehicle's operating information and historical driving range.

[0039] The data processing module is used to obtain the basic value of the driving range and the vehicle driving status based on the operating information;

[0040] The range calculation module is used to obtain the target displayed range based on the operating information, the historical displayed range, the base range value, and the vehicle driving marker position.

[0041] In addition, to achieve the above objectives, this application also proposes an electric vehicle range calculation device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the electric vehicle range calculation method described above.

[0042] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the electric vehicle range calculation method described above.

[0043] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the electric vehicle range calculation method described above.

[0044] This application provides a method for calculating the driving range of an electric vehicle. The method includes: acquiring the electric vehicle's operating information and historical displayed driving range; obtaining a basic driving range value and a vehicle driving indicator based on the operating information; and obtaining a target displayed driving range based on the operating information, the historical displayed driving range, the basic driving range value, and the vehicle driving indicator. In summary, this application analyzes various operating status information of the electric vehicle, such as vehicle speed, PEPS start button requests, battery health, total vehicle mileage, PTC working indicator, and ambient temperature, and accurately calculates the displayed driving range accordingly. This solves the problem of how to accurately calculate the driving range that an electric vehicle should display, improving the accuracy of driving range calculation and display. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A flowchart illustrating the first embodiment of the electric vehicle range calculation method of this application;

[0048] Figure 2 This is a schematic diagram of the overall process of an embodiment of the electric vehicle range calculation method of this application;

[0049] Figure 3 A flowchart illustrating the second embodiment of the electric vehicle range calculation method of this application;

[0050] Figure 4 A flowchart illustrating the third embodiment of the electric vehicle range calculation method of this application;

[0051] Figure 5 This is a schematic diagram of the module structure of the electric vehicle range calculation device according to an embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the hardware operating environment involved in the electric vehicle range calculation method in this application embodiment.

[0053] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0055] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0056] The main solution of this application embodiment is: to obtain the operating information and historical displayed range of the electric vehicle; to obtain the basic value of the range and the vehicle driving marker based on the operating information; and to obtain the target displayed range based on the operating information, the historical displayed range, the basic value of the range, and the vehicle driving marker.

[0057] With increasing global focus on environmental protection and energy conservation, electric vehicles (EVs) are gradually becoming the mainstream trend in the automotive market due to their numerous advantages, including energy efficiency, high performance, low or zero emissions, low noise, rapid acceleration, and low operating costs. As technology continues to advance and consumer acceptance of EVs increases, the EV market is experiencing rapid growth, with major automakers increasing their R&D efforts to improve EV performance and user experience.

[0058] Among the many performance indicators of electric vehicles, driving range is one of the most important factors for consumers. Because of range anxiety—the uncertainty users have about the vehicle's remaining range—users often need to frequently check the battery level and remaining range in actual use, thus affecting the driving experience and satisfaction. Therefore, how to accurately calculate the displayed driving range of an electric vehicle is a problem that urgently needs to be solved.

[0059] It should be noted that the executing entity in this embodiment can be an electric vehicle range calculation system, a computing service device with data processing, network communication, and program execution functions, or an electronic device capable of realizing the above-mentioned electric vehicle range calculation function, etc. This embodiment does not specifically limit it in this way. The following uses an electric vehicle range calculation system as an example to describe this embodiment and the following embodiments.

[0060] Based on this, this application provides a method for calculating the driving range of an electric vehicle, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the electric vehicle range calculation method of this application.

[0061] In this embodiment, the electric vehicle range calculation method includes steps S10 to S30:

[0062] Step S10: Obtain the electric vehicle's operating information and historical driving range.

[0063] It should be noted that, as Figure 2As shown, in this step, the system collects various operating information of the electric vehicle in real time through the VCU (Vehicle Control Unit), including but not limited to vehicle speed, PEPS (Passive Entry Passive Start) button start request, battery health, total mileage, PTC (Positive Temperature Coefficient) operating flag, ambient temperature, air conditioning operating flag, and battery charge. Simultaneously, the system reads the displayed driving range from the IVI (In-Vehicle Infotainment) controller or related storage unit as historical driving range data.

[0064] Step S20: Obtain the basic value of the driving range and the vehicle driving indicator position based on the operating information.

[0065] It's important to note that the baseline driving range is a preliminary calculation considering various factors, while the vehicle driving status indicator identifies the vehicle's current driving state. Both provide the data foundation for subsequent precise calculations. Specifically, in this step, the system calculates the baseline driving range based on basic information such as vehicle speed and battery level, by consulting a corresponding table and using preset algorithms (e.g., considering battery health correction coefficients, low temperature correction coefficients, and high temperature driving range correction values). Simultaneously, it determines and sets the vehicle driving status indicator based on conditions such as vehicle speed and duration. This indicator is used in subsequent calculations to distinguish whether the vehicle is in motion, enabling more accurate calculations.

[0066] Step S30: Obtain the target displayed driving range based on the operating information, the historical displayed driving range, the basic driving range value, and the vehicle driving marker position.

[0067] It should be noted that the target displayed driving range refers to the value that the electric vehicle should display under the current conditions. Specifically, in this step, the system calculates a reference driving range based on changes in battery charge, changes in total vehicle mileage, and the baseline driving range, combined with historically displayed driving range and vehicle mileage indicators. Then, based on the reference driving range, the driving range displayed at the previous calculation time, and the short time counter indicator, the system uses a series of logical judgments and calculations (such as considering the driving range change step size, the driving range increase interval, and the driving range decrease interval) to finally determine the target displayed driving range.

[0068] Understandably, this step, by comprehensively considering multiple factors, makes the calculated target driving range more accurate and stable, effectively avoiding the problem of large fluctuations in the displayed driving range caused by changes in data such as battery level.

[0069] This embodiment provides a method for calculating the driving range of an electric vehicle. The method includes: acquiring the electric vehicle's operating information and historical displayed driving range; obtaining a base driving range value and a vehicle driving indicator based on the operating information; and obtaining a target displayed driving range based on the operating information, the historical displayed driving range, the base driving range value, and the vehicle driving indicator. In summary, this embodiment analyzes various operating status information of the electric vehicle, such as vehicle speed, PEPS start button request, battery health, total vehicle mileage, PTC working indicator, and ambient temperature, and accurately calculates the displayed driving range accordingly. This solves the problem of how to accurately calculate the driving range that an electric vehicle should display, improving the accuracy of both the calculation and display of the electric vehicle's driving range.

[0070] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 , Figure 3 This is a flowchart illustrating the second embodiment of the electric vehicle range calculation method of this application. Step S20 specifically includes:

[0071] Step S201: Obtain the duration of the key press.

[0072] It should be noted that in this step, the system monitors the PEPS button activation request via the VCU controller. When a change in the PEPS button activation request is detected (e.g., a jump from "High Voltage Request" or "Ready Request" to "Power Down Request," or vice versa), the controller starts a timer to record the duration of the button press. The button duration obtained through this timer will be used in subsequent decision-making logic.

[0073] Understandably, obtaining the duration of button presses is to determine whether the vehicle's power state has undergone a persistent change, in order to distinguish between a momentary misoperation and a genuine driving need, providing a basis for subsequent steps such as determining the vehicle's driving position.

[0074] Step S202: Determine the vehicle driving marker position based on the PEPS button start request, the vehicle speed, and the button duration.

[0075] It should be noted that the PEPS button start request refers to the user's request signal to power on or off the vehicle via the keyless start system. The vehicle driving indicator is used to indicate whether the vehicle is currently in motion. This indicator controls the calculation logic for the driving range under different conditions to meet various needs.

[0076] Additionally, it should be noted that in this step, the system will determine whether to change the vehicle driving indicator status based on the duration of the button press, the current vehicle speed, and the PEPS button activation request status. Specifically, if the PEPS button activation request is a "power-down request" or (vehicle speed ≤ calibrated value S1 and duration exceeds calibrated value T1), the vehicle driving indicator is reset, indicating that the vehicle is not currently in a driving state. Otherwise, further determination is made if (vehicle speed > calibrated value S1 and duration exceeds calibrated value T2), then the vehicle driving indicator is set, indicating that the vehicle has entered or remains in a driving state. S1, T1, and T2 are all preset values, and their values ​​can be modified according to actual conditions.

[0077] Understandably, determining the vehicle's driving position is to more accurately reflect the vehicle's actual driving status, thereby adopting different range calculation strategies under different conditions and improving the accuracy of the calculation.

[0078] Step S203: Obtain the battery health correction coefficient based on the PEPS button start request, the battery health status, and the total driving mileage.

[0079] It should be noted that the battery health correction factor is a parameter used to adjust for errors in range calculation caused by factors such as battery performance degradation over time or temperature changes. This correction factor allows for a more accurate prediction of the electric vehicle's range under different driving conditions.

[0080] In one feasible implementation, step S203 specifically includes:

[0081] Step A10: Obtain the average battery health based on the PEPS button activation request.

[0082] It should be noted that average battery health refers to the average battery health over a period of time, reflecting the overall performance status of the battery during that period. Specifically, in this step, the system monitors the PEPS button activation request. When the PEPS button activation request is "High Voltage Request" or "Ready Request," the system begins recording and calculating the average battery health. At this time, the average battery health timer starts counting. When the value of this timer reaches or exceeds the preset calibration value T3 (this value can be adjusted according to actual conditions), the system calculates the average battery health based on all currently recorded battery health values. The specific calculation method is as follows: sum all recorded battery health values, and then divide by the number of records (i.e., the number of real-time values ​​recorded within the time period when the timer reaches T3) to obtain the average battery health. At the same time, the average battery health timer is reset to zero and restarts counting, preparing for the next calculation.

[0083] Step A20: Obtain the first battery health status based on the battery health status and the average battery health status.

[0084] It should be noted that the battery's first health level is determined by a comprehensive assessment of both the battery's current health level and the average battery health level. This assessment is used to subsequently calculate the battery health correction factor to more accurately reflect the battery's current performance status. In this step, the system compares the difference between the battery's current health level and the average battery health level. If the absolute value of the difference between the battery's current health level and the average battery health level is greater than or equal to a preset calibration value A1 (this value can be adjusted according to actual conditions), then the battery's first health level is set to the average battery health level; otherwise, the battery's first health level is set to the current battery health level. For example, assuming the battery health level is 88%, the average battery health level is 90.3%, and the calibration value A1 is 2%, since |88% - 90.3%| = 2.3% > 2%, the battery's first health level is set to 90.3%.

[0085] Step A30: Obtain the second battery health status based on the total driving mileage.

[0086] It should be noted that the second battery health level is obtained from a preset table based on the vehicle's total mileage and is used to calculate the battery health correction factor later. Specifically, in this step, the system will look up the corresponding second battery health level in Table 1 based on the total mileage. The total mileage and corresponding second battery health level in the table can be adjusted and modified according to actual conditions.

[0087] Table 1

[0088]

[0089] Step A40: Obtain the battery health correction coefficient based on the total driving mileage, the first battery health status, and the second battery health status.

[0090] It should be noted that in this step, the system will calculate the battery health correction coefficient based on the vehicle's total mileage, the battery's first health level, and the battery's second health level. That is: if the total mileage is less than or equal to the preset calibration value B1 (the value can be modified), then the battery health correction coefficient = 1; otherwise, proceed to the next step. In the next step, if the battery's second health level is greater than or equal to (the battery's first health level + the calibration value C1 (the value can be modified)), then the battery health correction coefficient = the battery's first health level / 100; otherwise, the battery health correction coefficient = the battery's second health level / 100.

[0091] Step S204: Obtain the low temperature correction coefficient based on the vehicle driving indicator, the PTC working indicator, and the ambient temperature.

[0092] It's important to note that the PTC operating flag indicates whether the vehicle's thermal management system is active, facilitating battery temperature regulation. The low-temperature correction factor, on the other hand, is a parameter used to correct for battery capacity reduction in low-temperature environments, ensuring accurate range calculations. Specifically, in this step, the system comprehensively analyzes the vehicle's driving status (vehicle driving flag), the PTC's operating status (PTC operating flag), and the current ambient temperature to calculate the impact of low temperatures on battery performance, thereby determining the low-temperature correction factor for the current situation.

[0093] In one feasible implementation, step S204 specifically includes:

[0094] Step B10: Determine the first low-temperature correction factor and the second low-temperature correction factor based on the ambient temperature.

[0095] It should be noted that both the first and second low-temperature correction factors are low-temperature correction parameters obtained by looking up the table based on the ambient temperature, and are used to correct battery performance under low-temperature conditions. The first low-temperature correction factor is typically used when the vehicle's PTC heating system is not activated or is not fully operational; while the second low-temperature correction factor is used after the PTC heating system has been activated and operating for a certain period of time. Specifically, assuming the current ambient temperature is -20℃, according to Table 2, the system will find the corresponding first low-temperature correction factor to be 0.82. Similarly, according to Table 3, the system will find the corresponding second low-temperature correction factor to be 0.6. These two correction factors will be used in subsequent calculations to adjust for the impact of the low-temperature environment on battery performance.

[0096] Table 2

[0097]

[0098] Table 3

[0099]

[0100] Step B20: Obtain the low temperature correction coefficient based on the vehicle driving indicator, the PTC working indicator, the first low temperature correction coefficient, and the second low temperature correction coefficient.

[0101] It should be noted that in this step, the system determines the final low-temperature correction coefficient based on the vehicle driving indicator, the PTC working indicator, the first correction coefficient obtained in the previous step, and the aforementioned low-temperature second correction coefficient. Specifically, when the PTC working indicator changes from reset to set, if (the PTC working indicator and the vehicle driving indicator are both set) and the duration exceeds the calibrated value T4 (the value can be modified), then the low-temperature correction coefficient = the low-temperature second correction coefficient; otherwise, the low-temperature correction coefficient = the low-temperature first correction coefficient. When the PTC working indicator changes from set to reset, if (the PTC working indicator is reset and the vehicle driving indicator is set) and the duration exceeds the calibrated value T5 (the value can be modified), the low-temperature correction coefficient = the low-temperature first correction coefficient; otherwise, the low-temperature correction coefficient = the low-temperature second correction coefficient. T4 and T5 are preset values, and their values ​​can be modified according to actual conditions.

[0102] Step S205: Obtain the high-temperature driving range correction value based on the vehicle driving indicator, the air conditioning working indicator, and the ambient temperature.

[0103] It should be noted that the air conditioner operating status indicator reflects the running status of the air conditioner compressor. The high-temperature range correction value is a parameter that corrects for the impact of excessively high temperatures on battery performance and the additional power consumption caused by air conditioning use, ensuring the accuracy of range calculation.

[0104] Specifically, in this step, when the air conditioning working indicator changes from reset to set, if (the air conditioning working indicator and the vehicle driving indicator are both set) and the duration exceeds the calibrated value T6 (the value can be modified), then the high-temperature range correction value = the high-temperature range correction value in Table 4 * battery charge / 100; otherwise, the high-temperature range correction value = 0. When the air conditioning compressor working indicator changes from set to reset, if (the air conditioning compressor working indicator is reset, and the vehicle driving indicator is set) the duration exceeds the calibrated value T7 (the value can be modified), then the high-temperature range correction value = 0; otherwise, the high-temperature range correction value = the high-temperature range correction value in Table 4 * battery charge / 100. For example, when the ambient temperature is 35℃ and the air conditioning is continuously operating, the high-temperature range correction value is 25km (as shown in Table 4). It should also be noted that T6 and T7 are preset values, and their values ​​can be modified according to actual conditions.

[0105] Table 4

[0106]

[0107] Step S206: Obtain the base value of the driving range based on the battery charge, the battery health correction coefficient, the low temperature correction coefficient, and the high temperature driving range correction value.

[0108] It should be noted that in this step, the system will look up the standard baseline value of the driving range in Table 5 based on the battery charge level. Then, it will adjust the standard baseline value by combining the previously calculated battery health correction coefficient, low temperature correction coefficient, and high temperature driving range correction value to obtain the final standard baseline value of the driving range. Specifically, the standard baseline value of the driving range = standard baseline value of the driving range * battery health correction coefficient * low temperature correction coefficient - high temperature driving range correction value. Assuming the current battery charge is 80%, the standard baseline value of the driving range can be obtained from Table 5 as 185km. Then, based on the battery health correction coefficient (e.g., 0.95, indicating that the battery health is slightly lower than that of a new battery), the low temperature correction coefficient (e.g., 1), and the high temperature driving range correction value (e.g., 25km), the standard baseline value of the driving range is calculated. The specific calculation result is: standard baseline value of the driving range = 185km * 0.95 * 1 - 25km = 150.75km.

[0109] Table 5

[0110]

[0111] In this embodiment, by comprehensively considering multiple factors such as vehicle driving conditions, battery charge, battery health, ambient temperature, and air conditioning usage, the actual range of the electric vehicle can be more comprehensively reflected, providing users with more accurate electric vehicle range information.

[0112] Based on the first and second embodiments of this application, in the third embodiment of this application, the content that is the same as or similar to that in embodiments one and two above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 4 , Figure 4 This is a flowchart illustrating the third embodiment of the electric vehicle range calculation method of this application. Step S30 specifically includes:

[0113] Step S301: Obtain the stored battery level, stored total mileage, and short flag of time count according to the PEPS button start request.

[0114] It's important to note that the stored battery charge and total mileage are numerical values ​​recorded under specific conditions for subsequent calculations and comparisons. The short time counter flag indicates the time counter's status. Specifically, in this step, when the PEPS button activation request changes from "High Voltage Request" or "Ready Request" to "Power Off Request," the system first records the current battery charge, which is then set as the stored battery charge. This is understandably done to compare changes in battery charge in future calculations, thus more accurately estimating the driving range. Similarly, when the PEPS button activation request changes from "High Voltage Request" or "Ready Request" to "Power Off Request," the system also records the current total mileage as the stored total mileage. Furthermore, when the PEPS button activation request changes from "Power Off Request" to "High Voltage Request" or "Ready Request," the system's internal time counter resets to zero and restarts. This time counter is used to determine whether the time it takes for the vehicle to return to power-on from a power-off state is short enough, and in this way, decides whether to set the time counter short flag. If the time counter count is less than or equal to the calibrated value T8 (a preset time threshold), the time counter short flag is set, indicating that the power-on operation was completed in a short time and the driving range may not need to be recalculated; otherwise, the flag is reset.

[0115] Step S302: Obtain the reference driving range based on the battery charge, the total driving mileage, the historical displayed driving range, the stored battery charge, the stored total driving mileage, the short time count flag, the basic driving range value, and the vehicle driving flag.

[0116] It should be noted that the reference driving range is an intermediate reference value for calculating the final target driving range, used for verification and adjustment before the final displayed driving range is determined. In this step, the system will perform a series of conditional judgments based on the current battery level, total mileage driven, historical displayed driving range, stored battery level, stored total mileage driven, short time counter flag, base driving range value (calculated in the previous step), and vehicle driving flag, and determine the reference driving range based on the judgment results.

[0117] In one feasible implementation, step S302 specifically includes:

[0118] Step C10: Determine the status of the first flag bit of the driving range based on the battery charge, the stored battery charge, the total driving mileage, the stored total driving mileage, the base value of the driving range, the historical displayed driving range, and the short flag bit of the time count.

[0119] It should be noted that, specifically, when the absolute value of [(battery charge - stored battery charge) ≥ calibration value A2 (value can be modified) or the absolute value of (total mileage - stored total mileage) ≥ calibration value A3 (value can be modified)], and the absolute value of (base range - historical displayed range) ≥ calibration value A4 (value can be modified), and the time count short flag is set, then the first range flag is set; otherwise, it is reset.

[0120] Step C20: Determine the reference range flag status based on the total driving mileage, the historical displayed range, the vehicle driving flag, and the range first flag status.

[0121] It should be noted that, specifically, when the total mileage is less than or equal to the calibrated value B2 (the value can be modified), or the historical display range is 0, or the vehicle driving indicator is in position, or the range indicator is in position 1, then the range indicator position should be referenced; otherwise, it should be reset.

[0122] Step C30: Determine the reference driving range based on the status of the reference driving range flag.

[0123] It should be noted that the system determines the reference driving range based on the status of the reference driving range flag. Specifically, in this step, when the reference driving range flag is set, the reference driving range = the base driving range value; when the reference driving range flag is reset, the reference driving range = the target displayed driving range at the previous calculation time.

[0124] Step S303: Obtain the target displayed driving range based on the historical displayed driving range, the short time count flag, and the reference driving range.

[0125] It's important to note that in this step, the system considers multiple factors, including the historical displayed driving range (i.e., the target displayed driving range at the previous calculation time), the short time counter flag, and the reference driving range, to calculate the current target displayed driving range. Understandably, the purpose of this step is to ensure that the target displayed driving range is updated in real time while reducing large jumps in displayed driving range due to data fluctuations, thus improving the user experience. Specifically, the system calculates the driving range change value based on the historical displayed driving range and the reference driving range, then determines the direction, step size, and interval of the driving range change by comparing the magnitude of the historical displayed driving range and the reference driving range, and finally calculates the target displayed driving range based on the above data.

[0126] In one feasible implementation, step S303 specifically includes:

[0127] Step D10: Obtain the range change value and range reduction flag based on the historical displayed range and the reference range.

[0128] It should be noted that the change in driving range is a physical quantity that measures the difference between two driving range values, directly reflecting whether the driving range has increased or decreased. The driving range reduction flag is a logical flag used to indicate whether the displayed driving range value needs to be reduced. In this step, it is used as part of the conditional judgment to control the logic of increasing or decreasing driving range.

[0129] Additionally, it should be noted that in this step, the system compares the historical displayed driving range (i.e., the target displayed driving range of the previous calculation period) with the currently calculated reference driving range. Then, it calculates the absolute difference between these two values, i.e., the change in driving range = |Historical displayed driving range at the previous calculation time - Current reference driving range|. Next, it compares the historical displayed driving range at the previous calculation time with the current reference driving range. If the historical displayed driving range at the previous calculation time is greater than or equal to the current reference driving range, it indicates that the driving range is decreasing or remaining unchanged. In this case, the driving range reduction flag is set, indicating that a driving range reduction or step reduction operation is required. If the historical displayed driving range at the previous calculation time is less than the current reference driving range, it indicates that the driving range is increasing. In this case, the driving range reduction flag is reset.

[0130] Step D20: Determine the range change step size, range increase interval, and range decrease interval based on the reference range.

[0131] It's important to note that the range change step size refers to the specific value adjusted each time the range increases or decreases. The range increase / decrease interval is a parameter that controls the rate at which the range increases or decreases. In this step, the system determines the corresponding range change step size based on the current reference range by looking up Table 6 (the table corresponding to reference range and range change step sizes). This step provides a fixed step size for range increases or decreases, ensuring smoothness and reasonableness. Simultaneously, the system also uses Table 7 (the table corresponding to reference range and range increase intervals) to obtain the required interval for range increases based on the current reference range. This is to control the rate of range increase and avoid abrupt jumps in the displayed value, which could negatively impact user experience. Finally, the system uses Table 8 (the table corresponding to reference range and range decrease intervals) to obtain the required interval for range decreases based on the current reference range. For example, assuming the current reference range is 130km, then according to Table 6, the range change step is 5km; according to Table 7, the range increase interval is 10 seconds; according to Table 8, the range decrease interval is 10 seconds.

[0132] Table 6

[0133]

[0134] Table 7

[0135]

[0136] Table 8

[0137]

[0138] Step D30: Obtain the target displayed driving range based on the short flag of the time count, the change value of the driving range, the decrease flag of the driving range, the step size of the change in driving range, the interval time of the increase in driving range, the interval time of the decrease in driving range, the historical displayed driving range, and the reference driving range.

[0139] It's important to note that in this step, the system checks the status of the short time count flag. If the short time count flag is set, the current reference range is directly used as the target displayed range without further adjustment. This typically occurs for a short period after the vehicle is started or powered back on to ensure the stability and accuracy of the displayed value. If the short time count flag is reset, the system further checks the range change value and the range reduction flag. If the range change value is less than the range change step size, it indicates that the range change is small and insufficient to trigger an adjustment to the displayed value. Therefore, the target displayed range remains unchanged, equal to the historical displayed range at the previous calculation time.

[0140] If the change in driving range is greater than or equal to the driving range change step size, the driving range is increased or decreased according to the driving range decrease flag and the corresponding interval. If the driving range decrease flag is set and the driving range decrease time counter has met the decrease interval, the target displays the driving range decrease step size; if the driving range decrease flag is reset and the driving range increase time counter has met the increase interval, the target displays the driving range increase step size. Otherwise, the target displays the driving range as unchanged.

[0141] In this embodiment, by considering key data such as PEPS start button requests, battery level, and total vehicle mileage, and combining various real-time and historical data as well as the operating status of the electric vehicle, the problem of large fluctuations in the target range displayed due to changes in signals such as battery level is reduced. This makes the target range information obtained by the driver more stable and reliable, and improves the user experience.

[0142] This application also provides a device for calculating the driving range of an electric vehicle; please refer to [reference needed]. Figure 5 The electric vehicle range calculation device includes:

[0143] The information acquisition module 10 is used to acquire the electric vehicle's operating information and historical display range.

[0144] Data processing module 20 is used to obtain the basic value of driving range and vehicle driving status based on the operating information;

[0145] The range calculation module 30 is used to obtain the target displayed range based on the operating information, the historical displayed range, the base value of the range, and the vehicle driving marker position.

[0146] The electric vehicle range calculation device provided in this application, employing the electric vehicle range calculation method described in the above embodiments, can solve the technical problem of how to accurately calculate the displayed range of an electric vehicle. Compared with the prior art, the beneficial effects of the electric vehicle range calculation device provided in this application are the same as those of the electric vehicle range calculation method provided in the above embodiments, and other technical features in the electric vehicle range calculation device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0147] This application provides an electric vehicle range calculation device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the electric vehicle range calculation method in the above embodiment 1.

[0148] The following is for reference. Figure 6 This document illustrates a structural schematic diagram of an electric vehicle range calculation device suitable for implementing embodiments of this application. The electric vehicle range calculation device in this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 6 The electric vehicle range calculation device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0149] like Figure 6 As shown, the electric vehicle range calculation device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the electric vehicle range calculation device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the electric vehicle range calculation device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows an electric vehicle range calculation device with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems can be implemented alternatively.

[0150] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0151] The electric vehicle range calculation device provided in this application, employing the electric vehicle range calculation method described in the above embodiments, can solve the technical problem of how to accurately calculate the displayed range of an electric vehicle. Compared with the prior art, the beneficial effects of the electric vehicle range calculation device provided in this application are the same as those of the electric vehicle range calculation method provided in the above embodiments, and other technical features of this electric vehicle range calculation device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0152] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0153] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0154] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the electric vehicle range calculation method in the above embodiments.

[0155] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0156] The aforementioned computer-readable storage medium may be included in the electric vehicle range calculation device; or it may exist independently and not be assembled into the electric vehicle range calculation device.

[0157] The aforementioned computer-readable storage medium carries one or more programs. When the aforementioned one or more programs are executed by the electric vehicle range calculation device, the electric vehicle range calculation device causes the electric vehicle range calculation device to: acquire the electric vehicle's operating information and historically displayed range; obtain a basic range value and a vehicle driving indicator based on the operating information; and obtain a target displayed range based on the operating information, the historically displayed range, the basic range value, and the vehicle driving indicator.

[0158] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0159] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0160] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0161] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described electric vehicle range calculation method, thereby solving the technical problem of how to accurately calculate the displayed range of an electric vehicle. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the electric vehicle range calculation method provided in the above embodiments, and will not be repeated here.

[0162] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the electric vehicle range calculation method described above.

[0163] The computer program product provided in this application solves the technical problem of how to accurately calculate the displayed driving range of an electric vehicle. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the electric vehicle driving range calculation method provided in the above embodiments, and will not be repeated here.

[0164] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for calculating the driving range of an electric vehicle, characterized in that, The method includes: Obtain the operating information and historical driving range of the electric vehicle; The basic driving range and vehicle driving status are obtained based on the operating information. The operating information includes PEPS button start request, vehicle speed, battery charge, battery health, total driving range, PTC working status, ambient temperature, and air conditioning working status. The steps of obtaining the basic driving range value and vehicle driving indicator position based on the operating information include: Get the duration of the key press; The vehicle driving indicator position is determined based on the PEPS button activation request, the vehicle speed, and the button duration. The battery health correction coefficient is obtained based on the PEPS button activation request, the battery health status, and the total driving mileage. The low-temperature correction coefficient is obtained based on the vehicle driving indicator, the PTC working indicator, and the ambient temperature. The high-temperature driving range correction value is obtained based on the vehicle driving indicator, the air conditioning working indicator, and the ambient temperature. The base range value is obtained based on the battery capacity, the battery health correction factor, the low temperature correction factor, and the high temperature range correction value. The target displayed driving range is obtained based on the operating information, the historical displayed driving range, the basic driving range value, and the vehicle driving position.

2. The method as described in claim 1, characterized in that, The step of obtaining the battery health correction coefficient based on the PEPS button activation request, the battery health status, and the total mileage includes: The average battery health is obtained based on the PEPS button activation request. The battery's first health level is obtained based on the battery health level and the average battery health level. The second battery health status is obtained based on the total mileage traveled. The battery health correction coefficient is obtained based on the total mileage, the first battery health status, and the second battery health status.

3. The method as described in claim 1, characterized in that, The step of obtaining the low-temperature correction coefficient based on the vehicle driving indicator, the PTC operating indicator, and the ambient temperature includes: Determine the first low-temperature correction factor and the second low-temperature correction factor based on the ambient temperature; The low-temperature correction coefficient is obtained based on the vehicle driving indicator, the PTC working indicator, the first low-temperature correction coefficient, and the second low-temperature correction coefficient.

4. The method as described in claim 1, characterized in that, The operational information includes the PEPS button start request, battery level, and total mileage. The step of obtaining the target displayed range based on the operating information, the historical displayed range, the base range value, and the vehicle driving indicator includes: Based on the PEPS button activation request, the stored battery level, stored total mileage, and short flag of the time count are obtained; The reference driving range is obtained based on the battery charge, the total driving mileage, the historical displayed driving range, the stored battery charge, the stored total driving mileage, the short time count flag, the base driving range value, and the vehicle driving flag. The target displayed driving range is obtained based on the historical driving range, the short time count flag, and the reference driving range.

5. The method as described in claim 4, characterized in that, The step of obtaining the reference driving range based on the battery charge, the total mileage driven, the historical displayed driving range, the stored battery charge, the stored total mileage driven, the short time counter flag, the base driving range value, and the vehicle driving flag includes: The status of the first flag bit of the driving range is determined based on the battery charge, the stored battery charge, the total mileage driven, the stored total mileage driven, the base value of the driving range, the historical displayed driving range, and the short flag bit of the time count. The reference range flag status is determined based on the total mileage driven, the historical displayed range, the vehicle driving flag, and the status of the first range flag. The reference driving range is determined based on the status of the reference driving range flag.

6. The method as described in claim 4, characterized in that, The step of obtaining the target displayed driving range based on the historical displayed driving range, the short time count flag, and the reference driving range includes: The change in driving range and the reduction in driving range flag are obtained based on the historical driving range and the reference driving range. The driving range change step size, driving range increase interval, and driving range decrease interval are determined based on the reference driving range. The target displayed driving range is obtained from the short time count flag, the driving range change value, the driving range decrease flag, the driving range change step size, the driving range increase interval time, the driving range decrease interval time, the historical displayed driving range, and the reference driving range.

7. A device for calculating the driving range of an electric vehicle, characterized in that, The device includes: The information acquisition module is used to acquire the electric vehicle's operating information and historical driving range. The data processing module is used to obtain a base driving range value and a vehicle driving status indicator based on the operating information. The operating information includes a PEPS button activation request, vehicle speed, battery level, battery health, total mileage, PTC operating status indicator, ambient temperature, and air conditioning operating status indicator. The steps of obtaining the base driving range value and the vehicle driving status indicator based on the operating information include: obtaining the button activation duration; determining the vehicle driving status indicator based on the PEPS button activation request, vehicle speed, and button activation duration; obtaining a battery health correction coefficient based on the PEPS button activation request, battery health, and total mileage; obtaining a low-temperature correction coefficient based on the vehicle driving status indicator, PTC operating status indicator, and ambient temperature; obtaining a high-temperature driving range correction value based on the vehicle driving status indicator, air conditioning operating status indicator, and ambient temperature; and obtaining the base driving range value based on the battery level, battery health correction coefficient, low-temperature correction coefficient, and high-temperature driving range correction value. The range calculation module is used to obtain the target displayed range based on the operating information, the historical displayed range, the base range value, and the vehicle driving marker position.

8. A device for calculating the driving range of an electric vehicle, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the electric vehicle range calculation method as described in any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the electric vehicle range calculation method as described in any one of claims 1 to 6.

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