Range correction display method and device, computer device, and storage medium

Abstract

The application relates to a kind of endurance mileage correction display method, device, computer equipment and storage medium, the method includes obtaining the apparent state of charge of vehicle, the apparent state of charge is obtained according to the approximate value of actual state of charge of vehicle battery;According to the apparent state of charge, determine correction level, and according to the correction level, determine mileage correction amount, wherein the correction level is linearly negatively related to the apparent state of charge;In non-plug-in charging state, according to the first corrected mileage obtained by the estimated endurance mileage of vehicle minus the mileage correction amount, output display the first corrected mileage as apparent endurance, and when the apparent state of charge is equal to zero, the apparent endurance is zero;Using the method of the application can improve the problem that SOC and endurance mileage do not correspond in the prior art instrument display.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a method, apparatus, computer device, and storage medium for displaying driving range correction. Background Technology

[0002] Currently, the rated capacity of battery packs for pure electric vehicles is generally around 60-80 kWh. The State of Charge (SOC) displayed on the instrument panel is usually the main reference for users to obtain the remaining battery power. Generally, the SOC displayed on the instrument panel is an approximation of the actual SOC.

[0003] When driving using the remaining battery power, when the State of Charge (SOC) value on the instrument panel jumps to 0, the actual SOC is not zero. There is still a small amount of power available for use. The vehicle calculates the remaining driving range based on this portion of power and displays it, resulting in the displayed SOC being 0, but the displayed driving range not being 0. This can lead to a situation where the SOC displayed on the instrument panel does not correspond to the driving range, thus misleading the user. Summary of the Invention

[0004] Based on this, a method, apparatus, computer device, and storage medium for correcting driving range display are provided to improve the problem that the SOC displayed by the instrument does not correspond to the driving range in the prior art.

[0005] On the one hand, a method for correcting and displaying driving range is provided, the method comprising:

[0006] The displayed state of charge of the vehicle is obtained, and the displayed state of charge is obtained by taking an approximation based on the actual state of charge of the vehicle battery.

[0007] The correction level is determined based on the displayed state of charge, and the mileage correction amount is determined based on the correction level, wherein the correction level is linearly negatively correlated with the displayed state of charge;

[0008] In non-plug-in charging mode, the first corrected mileage is obtained by subtracting the mileage correction amount from the estimated range of the vehicle, and the first corrected mileage is output and displayed as the displayed range. When the displayed state of charge is equal to zero, the displayed range is zero.

[0009] In one embodiment, determining the mileage correction amount based on the correction level includes:

[0010] The mileage correction amount is determined by multiplying the correction level and the base correction amount, wherein the base correction amount is obtained based on the ratio of the final mileage to the number of correction levels, and the final mileage is the remaining estimated driving range when the actual state of charge is approximately zero.

[0011] In one embodiment, determining the correction level based on the displayed state of charge further includes:

[0012] Compare the current correction level with the historical correction level to determine whether the current correction level is higher than the historical correction level under non-plug-in charging conditions;

[0013] If so, the first corrected mileage is obtained by subtracting the mileage correction amount from the vehicle's estimated driving range.

[0014] In one embodiment, the end-mileage is obtained according to the following steps:

[0015] The actual terminal charge is obtained when the actual state of charge is approximately zero, based on the rated charge of the vehicle battery.

[0016] The final mileage is obtained based on the actual terminal power consumption and the energy consumption per unit mileage of the vehicle, wherein the energy consumption per unit mileage is either a fixed energy consumption or a dynamic energy consumption calculated based on historical energy consumption.

[0017] In one embodiment, the output includes the following steps before displaying the first corrected mileage:

[0018] The displayed range is obtained by approximating the first corrected range, and the minimum value of the displayed range is 1 when the displayed state of charge is greater than zero.

[0019] In one embodiment, the method further includes: when charging by plugging in a charging gun, obtaining a second corrected mileage by summing the estimated driving range of the vehicle with the mileage correction amount, and outputting and displaying the second corrected mileage as the displayed driving range.

[0020] In one embodiment, taking an approximate value based on the actual state of charge of the vehicle battery includes rounding to the nearest integer.

[0021] Furthermore, a range correction display device is provided, the device comprising:

[0022] The acquisition module is used to acquire the displayed state of charge of the vehicle, which is obtained by taking an approximation based on the actual state of charge of the vehicle battery.

[0023] The correction module is used to determine the correction level based on the displayed state of charge, determine the mileage correction amount based on the correction level, and then obtain the first corrected mileage by subtracting the mileage correction amount from the vehicle's estimated driving range, wherein the correction level is linearly negatively correlated with the displayed state of charge.

[0024] The display module is used to output and display the first corrected mileage as the displayed battery life in the non-plug-in charging state, and when the displayed state of charge is equal to zero, the displayed battery life is zero.

[0025] In another aspect, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method.

[0026] A computer-readable storage medium is also provided, on which a computer program is stored, which, when executed by a processor, implements the steps of the method.

[0027] The aforementioned range correction display method, device, computer equipment, and storage medium determine the correction level by displaying the state of charge. The correction level is negatively correlated with the displaying state of charge, that is, the lower the battery level, the greater the range correction. The difference between the displaying state of charge and the displaying range caused by taking an approximation of the actual state of charge is gradually eliminated, and the displaying state of charge and the displaying range are synchronously set to zero. Attached Figure Description

[0028] Figure 1 This is a flowchart illustrating a method for correcting and displaying driving range in one embodiment;

[0029] Figure 2 This is a structural block diagram of a range correction display device in one embodiment;

[0030] Figure 3 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] Range and displayed battery level are important parameters provided to drivers by the vehicle's infotainment system. Battery level is typically displayed as State of Charge (SOC), and the displayed value is usually an approximation of the actual SOC, using rounding (in this application, rounding refers to rounding the numerator of a percentage, e.g., 5.8% rounded to 6%). For example, when the displayed SOC shows 0%, there is at most 0.4% actual SOC remaining. For a typical 80kWh battery pack, this equates to 0.32kWh of charge. Since a fully charged 80kWh battery pack typically has a range of over 500km, this would result in the instrument panel displaying a range of approximately 2-3km. Displaying both SOC and range simultaneously would mislead the user.

[0033] The driving range correction display method provided in this application can be applied to vehicles that simultaneously display driving range and state of charge, thereby improving the problem of large deviation between the SOC displayed on the instrument panel and the driving range in the prior art.

[0034] In one embodiment, a method for correcting and displaying driving range is provided, such as... Figure 1 As shown, it includes the following steps:

[0035] Step 101: Obtain the displayed state of charge of the vehicle, which is obtained by approximating the actual state of charge of the vehicle battery.

[0036] The approximation method refers only to the numerator of the actual state of charge value, including rounding, up-rounding, down-rounding, and zero-rounding. One or more decimal places can be retained according to actual design requirements. The following explanation uses rounding as an example.

[0037] Step 102: Determine the correction level based on the displayed state of charge, and determine the mileage correction amount based on the correction level, wherein the correction level is linearly negatively correlated with the displayed state of charge.

[0038] It is understandable that the difference between the displayed state of charge and the displayed battery life caused by the approximate rounding of the actual state of charge is mainly reflected in the case of low battery, and is more likely to cause misunderstanding to users in the case of low battery. Therefore, this application mainly focuses on the definition of the displayed state of charge and the correspondence between the correction level in the case of low battery, as shown in Table 1.

[0039] Table 1: Correspondence between Displayed State of Charge and Correction Level

[0040]

[0041]

[0042] In the above correspondence, there are 10 correction levels. The correction level is updated once for every 1% change in the displayed state of charge. In some embodiments, fewer or more correction levels can be defined. The correction level is updated once for every N times 1% change in the displayed state of charge.

[0043] In the above correspondence, the higher the correction level, the greater the mileage correction.

[0044] Step 103: In the non-plug-in charging state, the first corrected mileage is obtained by subtracting the mileage correction amount from the estimated range of the vehicle, and the first corrected mileage is output and displayed as the displayed range. When the displayed state of charge is equal to zero, the displayed range is zero.

[0045] In the above-mentioned method for correcting the range display, as the displayed state of charge decreases from 9% to 0, the range correction amount gradually increases, and finally, when the displayed state of charge is set from 1% to zero, the displayed range is simultaneously set to zero, and the correction change is gradual.

[0046] In one embodiment, the mileage correction amount is determined using the following method:

[0047] The mileage correction amount is determined by multiplying the correction level and the base correction amount, wherein the base correction amount is obtained based on the ratio of the final mileage to the number of correction levels, and the final mileage is the remaining estimated driving range when the actual state of charge is approximately zero.

[0048] Taking the 10 correction levels defined in Table 1 as an example, the remaining estimated driving range C can be obtained by following these steps:

[0049] The actual terminal charge is obtained when the actual state of charge is approximately zero, based on the rated charge Q of the vehicle battery. For example, when the actual state of charge is 0.4%, the approximate result is zero. The charge A corresponding to 0.4% actual SOC is A = 0.4% * Q (ignoring the influence of battery health status).

[0050] The final mileage C is obtained based on the actual terminal power A and the vehicle's energy consumption per unit mileage B, where C = A / B, and the energy consumption per unit mileage is either a fixed energy consumption or a dynamic energy consumption calculated based on historical energy consumption.

[0051] The basic correction amount D can then be calculated, where D = C / 10.

[0052] When the displayed state of charge is 1, the corresponding mileage correction is 9*D.

[0053] When the displayed state of charge is reset from 1 to 0, the corresponding range correction is 10*D, which is the driving range corresponding to 0.4% SOC, thus achieving the synchronous reset of the displayed state of charge and the displayed driving range to zero.

[0054] Most new energy vehicles have energy recovery functions during operation, and their actual state of charge fluctuates, further leading to uncertainty in the correction level. In one embodiment, the following steps are also included:

[0055] Compare the current correction level with the historical correction level to determine whether the current correction level is higher than the historical correction level under non-plug-in charging conditions;

[0056] If so, the first corrected mileage is obtained by subtracting the mileage correction amount from the vehicle's estimated driving range.

[0057] The following storage unit is illustrated by way of example:

[0058] 1) F represents a flag indicating whether the correction level has decreased when the vehicle is not plugged in for charging. The initial value is 0. When the vehicle is not plugged in for charging, F is set to 1 when the rounded state of charge value increases due to energy recovery. When the rounded state of charge value returns to the value before the increase, F is set to 0.

[0059] 2) G represents the correction level when the rounded State of Charge (SOC) begins to rise in the non-plug-in charging state, with an initial value of 0.

[0060] The aforementioned stored values ​​are stored when the vehicle is powered off, and are read and used in calculations when the vehicle is powered on again.

[0061] In non-plug-in charging mode, if the current correction level is lower than the previous correction level, the drop flag F=1 is triggered, and the previous correction level is assigned to G. Then, the relationship between subsequent correction levels and the base value G is continuously evaluated. If the correction level remains lower than G, the mileage correction is not updated; it is only updated when the correction level rises above G again.

[0062] In one embodiment, the displayed range is obtained by approximating the first corrected range using the same approximation method, and when the displayed state of charge is greater than zero, the minimum value of the displayed range is 1, to avoid the situation where the displayed state of charge is not zero but the displayed range is zero.

[0063] In one embodiment, when the vehicle is plugged into a charging port, a second corrected mileage is obtained by summing the estimated driving range of the vehicle with the mileage correction amount, and the second corrected mileage is output and displayed as the displayed driving range.

[0064] It should be understood that, although Figure 1 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 1 At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0065] In one embodiment, such as Figure 2 As shown, a range correction display device is provided, comprising: an acquisition module, a correction module, and a display module, wherein:

[0066] The acquisition module is used to acquire the displayed state of charge of the vehicle, which is obtained by taking an approximation based on the actual state of charge of the vehicle battery.

[0067] The correction module is used to determine the correction level based on the displayed state of charge, determine the mileage correction amount based on the correction level, and then obtain the first corrected mileage by subtracting the mileage correction amount from the vehicle's estimated driving range, wherein the correction level is linearly negatively correlated with the displayed state of charge.

[0068] The display module is used to output and display the first corrected mileage as the displayed battery life in the non-plug-in charging state, and when the displayed state of charge is equal to zero, the displayed battery life is zero.

[0069] The aforementioned range correction display device determines the correction level by displaying the state of charge. The correction level is negatively correlated with the displayed state of charge, that is, the lower the battery level, the greater the range correction. The difference between the displayed state of charge and the displayed range caused by taking an approximation of the actual state of charge is gradually eliminated, and the displayed state of charge and the displayed range are synchronously set to zero.

[0070] In one embodiment, the correction module determines the mileage correction amount according to the following method:

[0071] The mileage correction amount is determined by multiplying the correction level and the base correction amount, wherein the base correction amount is obtained based on the ratio of the final mileage to the number of correction levels, and the final mileage is the remaining estimated driving range when the actual state of charge is approximately zero.

[0072] In the above method, the lower the battery level, the higher the correction level, and the higher the calculated mileage correction amount. Ultimately, when the displayed state of charge is set to zero, the deviation in the displayed range is completely eliminated, and the range is set to zero synchronously.

[0073] In one embodiment, after determining the mileage correction amount, the following steps are also included:

[0074] Compare the current correction level with the historical correction level to determine whether the current correction level is higher than the historical correction level under non-plug-in charging conditions;

[0075] If so, the first corrected mileage is obtained by subtracting the mileage correction amount from the vehicle's estimated driving range.

[0076] The above steps can eliminate the impact of repeated changes in the vehicle's actual state of charge caused by energy recovery, and avoid repeated changes in correction level and mileage correction amount.

[0077] In one embodiment, the correction module can calculate the final mileage according to the following steps;

[0078] 1) Obtain the actual terminal charge when the actual state of charge is approximately zero, based on the rated charge of the vehicle battery;

[0079] 2) The end mileage is obtained based on the actual end-point electricity and the energy consumption per unit mile of the vehicle, wherein the energy consumption per unit mile is either a fixed energy consumption or a dynamic energy consumption calculated based on historical energy consumption.

[0080] For example, when the vehicle's displayed state of charge is a percentage with one decimal place, if the actual state of charge is 0.04%, the displayed state of charge is set to 0.0%. At this time, the remaining driving range of the vehicle is calculated based on the amount of electricity corresponding to the actual SOC of 0.04%, which is the final driving range.

[0081] In one embodiment, the display module is further configured to, while in plug-in charging mode, obtain a second corrected mileage by summing the estimated driving range of the vehicle with the mileage correction amount, and output the second corrected mileage as the displayed driving range.

[0082] Specific limitations regarding the range correction display device can be found in the limitations of the range correction display method described above, and will not be repeated here. Each module in the aforementioned range correction display device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0083] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 3 As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a range correction display method. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the computer device casing, or an external keyboard, touchpad, or mouse.

[0084] Those skilled in the art will understand that Figure 3The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0085] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the following steps:

[0086] Step A: Obtain the displayed state of charge of the vehicle, which is obtained by approximating the actual state of charge of the vehicle battery.

[0087] Step B: Determine the correction level based on the displayed state of charge, and determine the mileage correction amount based on the correction level, wherein the correction level is linearly negatively correlated with the displayed state of charge;

[0088] In step C, under non-plug-in charging conditions, the first corrected mileage is obtained by subtracting the mileage correction amount from the estimated range of the vehicle, and the first corrected mileage is output and displayed as the displayed range. When the displayed state of charge is equal to zero, the first corrected mileage is zero.

[0089] The aforementioned computer equipment gradually increases the correction for the displayed battery life as the battery level decreases, ultimately achieving the synchronous zeroing of the displayed battery life when the displayed state of charge is reset to zero.

[0090] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0091] The mileage correction amount is determined by multiplying the correction level and the base correction amount, wherein the base correction amount is obtained based on the ratio of the final mileage to the number of correction levels, and the final mileage is the remaining estimated driving range when the actual state of charge is approximately zero.

[0092] As the battery level decreases, the correction level gradually increases, and the mileage correction amount increases in tandem.

[0093] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0094] Compare the current correction level with the historical correction level to determine whether the current correction level is higher than the historical correction level under non-plug-in charging conditions;

[0095] If so, the first corrected mileage is obtained by subtracting the mileage correction amount from the vehicle's estimated driving range; otherwise, the current correction level is maintained to avoid repeated changes in the correction level.

[0096] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0097] Step A: Obtain the displayed state of charge of the vehicle, which is obtained by approximating the actual state of charge of the vehicle battery.

[0098] Step B: Determine the correction level based on the displayed state of charge, and determine the mileage correction amount based on the correction level, wherein the correction level is linearly negatively correlated with the displayed state of charge;

[0099] In step C, under non-plug-in charging conditions, the first corrected mileage is obtained by subtracting the mileage correction amount from the estimated range of the vehicle, and the first corrected mileage is output and displayed as the displayed range. When the displayed state of charge is equal to zero, the first corrected mileage is zero.

[0100] 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 the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may 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 data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAM bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for correcting and displaying driving range, characterized in that, include: The displayed state of charge of the vehicle is obtained, and the displayed state of charge is obtained by taking an approximation based on the actual state of charge of the vehicle battery. The correction level is determined based on the displayed state of charge, and the mileage correction amount is determined based on the correction level, wherein the correction level is linearly negatively correlated with the displayed state of charge; In non-plug-in charging mode, the first corrected mileage is obtained by subtracting the mileage correction amount from the estimated range of the vehicle, and the first corrected mileage is output and displayed as the displayed range. When the displayed state of charge is equal to zero, the displayed range is zero.

2. The range correction display method according to claim 1, characterized in that, Determining the mileage correction amount based on the correction level includes: The mileage correction amount is determined by multiplying the correction level and the base correction amount, wherein the base correction amount is obtained based on the ratio of the final mileage to the number of correction levels, and the final mileage is the remaining estimated driving range when the actual state of charge is approximately zero.

3. The range correction display method according to claim 2, characterized in that, Based on the displayed state of charge, the correction level is determined, followed by: Compare the current correction level with the historical correction level to determine whether the current correction level is higher than the historical correction level under non-plug-in charging conditions; If so, the first corrected mileage is obtained by subtracting the mileage correction amount from the vehicle's estimated driving range.

4. The range correction display method according to claim 2, characterized in that, The terminal mileage is obtained according to the following steps: The actual terminal charge is obtained when the actual state of charge is approximately zero, based on the rated charge of the vehicle battery. The final mileage is obtained based on the actual terminal power consumption and the energy consumption per unit mileage of the vehicle, wherein the energy consumption per unit mileage is either a fixed energy consumption or a dynamic energy consumption calculated based on historical energy consumption.

5. The range correction display method according to claim 1, characterized in that, The output, before showing the first corrected mileage, also includes: The displayed range is obtained by approximating the first corrected range, and the minimum value of the displayed range is 1 when the displayed state of charge is greater than zero.

6. The range correction display method according to claim 1, characterized in that, Also includes: When the vehicle is plugged in for charging, the estimated range of the vehicle is summed with the range correction amount to obtain the second corrected range, and the second corrected range is output and displayed as the displayed range.

7. The range correction display method according to claim 1, characterized in that, The approximation based on the actual state of charge of the vehicle battery includes rounding to the nearest integer.

8. A range correction display device, characterized in that, The device includes: The acquisition module is used to acquire the displayed state of charge of the vehicle, which is obtained by taking an approximation based on the actual state of charge of the vehicle battery. The correction module is used to determine the correction level based on the displayed state of charge, determine the mileage correction amount based on the correction level, and then obtain the first corrected mileage by subtracting the mileage correction amount from the vehicle's estimated driving range, wherein the correction level is linearly negatively correlated with the displayed state of charge. The display module is used to output and display the first corrected mileage as the displayed battery life in the non-plug-in charging state, and when the displayed state of charge is equal to zero, the displayed battery life is zero.

9. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

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