New energy vehicle electric quantity display control method and device, vehicle and storage medium

Abstract

The application belongs to the technical field of vehicles, and discloses a new energy vehicle electric quantity display control method and device, a vehicle, and a storage medium. According to the application, when the new energy vehicle is in a non-charging state and high electric quantity and / or in a non-charging state and low electric quantity is woken up each time, the display state of charge decrease is controlled to be less than the real state of charge decrease, so that the display electric quantity decrease rate is effectively slowed down, the decrease of the cruising range is ensured to be not too fast, and the cruising range experience of the user is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a method, device, vehicle, and storage medium for displaying and controlling the battery level of new energy vehicles. Background Technology

[0002] Most current new energy vehicles use operating condition range algorithms, where changes in range during charging or driving are linearly correlated with changes in State of Charge (SOC). New energy vehicles have energy recovery functions, but when the SOC is high (e.g., 98% and above), the battery pack's allowable charging power is very limited. Energy recovery is typically disabled to protect the battery pack and prevent overcharging. Energy recovery is gradually enabled when the SOC drops below 98%, until it is completely disabled when the SOC falls below a certain value (e.g., 95%). When energy recovery is disabled or limited, the vehicle's battery level drops rapidly, giving users the illusion that the battery is not durable. Furthermore, the actual battery level drop may not match the actual driving distance.

[0003] In addition, when the battery pack temperature of a new energy vehicle is low, the battery's discharge capacity decreases. When the user uses the vehicle again, there will be a difference between the displayed state of charge and the actual usable battery capacity. This difference causes the displayed state of charge to catch up with the actual capacity during subsequent driving, triggering a SOC correction. The general correction algorithm is to make the change in the displayed state of charge SOC higher than the SOC value corresponding to the actual power consumption. At this time, the state of charge SOC will drop rapidly, which will lead to a rapid decrease in driving range and reduce the user experience. Summary of the Invention

[0004] The purpose of this application is to solve at least one of the above-mentioned technical problems, and to slow down the rate of decrease of the displayed battery level each time the vehicle is woken up when it is in a non-charging state with high battery level and / or low battery level, so as to ensure that the range does not decrease too quickly and improve the user's range experience.

[0005] The first aspect of this application provides a method for controlling the battery level display of a new energy vehicle, including:

[0006] The method for controlling the battery level display of new energy vehicles includes:

[0007] When waking up the vehicle in a non-charging state, obtain the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack;

[0008] Obtain the real-time true state of charge; if the initial true state of charge is greater than or equal to a first limit, control the display state of charge decrease to be less than the actual state of charge decrease.

[0009] If the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is greater than or equal to the charge threshold, then the control displays that the decrease in state of charge is less than the decrease in true state of charge, the first limit is greater than the second limit, and the second limit is greater than the third limit.

[0010] The target display state of charge is obtained based on the decrease in the displayed state of charge and the initial displayed state of charge, and the target display state of charge is displayed.

[0011] Optionally, in one embodiment of this application, if the initial true state of charge is greater than or equal to a first limit, then controlling the displayed state of charge decrease to be less than the true state of charge decrease further includes:

[0012] If the real-time true state of charge is greater than the second limit and less than the first limit, then the control displays the decrease in state of charge as equal to the decrease in true state of charge.

[0013] Optionally, in one embodiment of this application, if the real-time true state of charge is greater than a second limit and less than a first limit, then controlling the displayed state of charge decrease to equal the true state of charge decrease further includes:

[0014] If the real-time true state of charge is less than or equal to the second limit, then the difference between the target displayed state of charge and the real-time true state of charge is obtained, and the first difference is obtained.

[0015] The difference between the real-time state of charge and the first charge value is obtained to get the second difference.

[0016] The first charge change value is determined based on the first difference and the second difference, and the displayed state of charge decrease is controlled to be equal to the sum of the actual state of charge decrease and the first charge change value.

[0017] Optionally, in one embodiment of this application, after obtaining the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack, the method further includes: if the initial true state of charge is greater than or equal to a third limit and less than a second limit, and the real-time true state of charge is less than the power threshold, then a third difference is obtained based on the difference between the target displayed state of charge and the power threshold.

[0018] The difference between the real-time true state of charge and the second charge value is obtained to obtain the fourth difference;

[0019] The second charge change value is determined based on the third and fourth differences, and the displayed state of charge decrease is controlled to be equal to the sum of the actual state of charge decrease and the second charge change value.

[0020] Optionally, in one embodiment of this application, the method further includes:

[0021] Obtain the difference between the target's displayed state of charge and the real-time true state of charge to obtain the fifth difference value;

[0022] If the fifth difference is greater than the target difference, the displayed state of charge decrease is controlled to be greater than the actual state of charge decrease, so that the real-time actual state of charge and the displayed state of charge gradually become equal.

[0023] Optionally, in one embodiment of this application, the method further includes:

[0024] During charging, the system acquires the actual state of charge of the new energy vehicle battery pack when charging begins, the real-time state of charge during charging, and the displayed state of charge when charging begins.

[0025] If the actual state of charge at the start of charging is less than the displayed state of charge at the start of charging, the increase in the displayed state of charge is controlled to be less than the increase in the actual state of charge, and the displayed state of charge during charging is updated according to the increase in the displayed state of charge, so that the real-time state of charge during charging gradually catches up with the displayed state of charge during charging.

[0026] Optionally, in one embodiment of this application, when waking up the vehicle in a non-charging state, the control displays the increase in state of charge equal to the actual increase in state of charge.

[0027] A second aspect of this application provides a power display and control device for a new energy vehicle, comprising:

[0028] The acquisition module is used to acquire the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack when waking up the vehicle in a non-charging state.

[0029] The first control module is used to acquire the real-time true state of charge, and when the initial true state of charge is greater than or equal to the first limit, it controls the display to show that the decrease in the state of charge is less than the decrease in the true state of charge.

[0030] The second control module is used to control the display of the state of charge decrease to be less than the actual state of charge decrease when the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is greater than or equal to the charge threshold. The first limit is greater than the second limit, and the second limit is greater than the third limit.

[0031] The display module is used to obtain the target display state of charge based on the decrease in the display state of charge and the initial display state of charge, and to display the target display state of charge.

[0032] A third aspect of this application provides a vehicle, including: a new energy vehicle power display and control device as described above.

[0033] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, characterized in that the program is executed by a processor to implement the new energy vehicle power display control method as described in any of the preceding claims.

[0034] This application has the following beneficial effects:

[0035] The new energy vehicle power display control method, device, vehicle, and storage medium of this application control the displayed state of charge to decrease less than the actual state of charge each time the new energy vehicle is woken up when it is in a non-charging state with high power and / or in a non-charging state with low power. This effectively slows down the rate of power decrease, ensures that the range does not decrease too quickly, and improves the user's range experience. Attached Figure Description

[0036] Figure 1 A flowchart illustrating a new energy vehicle battery level display control method provided in an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of the structure of a new energy vehicle power display and control device provided in an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the structure of a vehicle provided in one embodiment of this application. Detailed Implementation

[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0040] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0041] The following description, with reference to the accompanying drawings, outlines a method, apparatus, and storage medium for controlling the battery level display of a new energy vehicle, as well as embodiments thereof.

[0042] The first aspect of this application provides a method for controlling the battery level display of a new energy vehicle. Figure 1This is a flowchart illustrating the new energy vehicle battery level display control method provided in an embodiment of this application.

[0043] like Figure 1 As shown, the method for controlling the battery level display of new energy vehicles specifically includes the following steps:

[0044] Step S101: When waking up the vehicle in a non-charging state, obtain the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack.

[0045] It should be noted that the state of charge (SOC) refers to the ratio of the remaining capacity of a battery to its capacity when fully charged, expressed as a percentage. Its value ranges from 0 to 1; when SOC = 0, the battery is fully discharged; when SOC = 1, the battery is fully charged. In this application, the true state of charge is abbreviated as true SOC, and the displayed state of charge is abbreviated as displayed SOC.

[0046] Specifically, the Battery Management System (BMS) detects and calculates the battery pack's true state of charge (True SOC) in real time and sends it to the Vehicle Control Unit (VCU). The VCU processes the received True SOC to obtain the displayed SOC (State of Charge) for the instrument cluster.

[0047] The initial true state of charge and the initial displayed state of charge refer to the actual state of charge in the system and the displayed state of charge stored in the system when the vehicle is first awakened. In subsequent processes, the actual state of charge and the displayed state of charge continuously change, requiring real-time measurement and calculation.

[0048] Step S102: Obtain the real-time true state of charge. If the initial true state of charge is greater than or equal to the first limit, control the display state of charge decrease to be less than the actual state of charge decrease.

[0049] The specific value of the first limit can be set according to the user's actual needs, for example, it can be 95%. At this time, the vehicle is in a high-charge state. If the initial true state of charge is greater than or equal to 95%, the rate of decrease of the displayed state of charge is slowed down, that is, the decrease in the displayed state of charge is controlled to be less than the decrease in the true state of charge.

[0050] Regarding the specific relationship between the displayed state of charge (SOC) decrease and the actual SOC decrease, the key is to ensure that the displayed SOC decrease is less than the actual SOC decrease. To avoid distortion caused by an excessively small displayed SOC that deviates too much from the actual SOC, the displayed SOC decrease can be controlled to be between 0.5 and 1 times the actual SOC (inclusive, exclusive). For example, if the actual SOC decreases by 2%, the displayed SOC can decrease by 1%.

[0051] It should be noted that when the vehicle is woken up while not charging, the energy recovery or range extender will cause the battery level to rise. During this process, the increase in the displayed state of charge is equal to the actual increase in the state of charge.

[0052] In a preferred embodiment, the increase and decrease are unit increases and unit decreases, respectively. That is, the unit decrease in the displayed state of charge (SOC) is less than the unit decrease in the actual SOC, and the unit increase in the displayed SOC is equal to the increase in the actual SOC. In other words, for every first decrease in the actual SOC, the displayed SOC decreases by a second amount; for every first increase in the actual SOC, the displayed SOC also increases by a first amount. It should be noted that the specific magnitude of the unit increase and unit decrease can be determined based on the accuracy of the actual SOC calculated by the BMS in the industry. For example, if the accuracy of the actual SOC calculated by the BMS in the industry is currently 0.1%, then the VCU processes it according to the principle that for every 0.1% decrease in the actual SOC, the displayed SOC decreases by 0.05%, and the increase in the actual SOC is the same as the increase in the displayed SOC. To effectively improve the user experience, rounding can be performed when outputting the displayed SOC.

[0053] Step S103: If the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is greater than or equal to the charge threshold, then the control displays the decrease in state of charge as less than the decrease in true state of charge, the first limit is greater than the second limit, and the second limit is greater than the third limit.

[0054] The specific values ​​of the second and third limits can be set according to the user's actual needs. For example, the second limit can be 90% and the third limit can be 30%, as long as the first limit is greater than the second limit and the second limit is greater than the third limit. At this time, the vehicle is in a low battery state.

[0055] The battery capacity threshold is determined based on the temperature difference between the battery pack and the ambient temperature after the vehicle has been in sleep mode and has been awakened, as well as the vehicle's parking time. Specifically: the ambient temperature difference is determined by comparing the ambient temperature when the vehicle was in sleep mode with the ambient temperature when it is currently awakened; the battery temperature difference is determined by comparing the battery temperature when the vehicle was in sleep mode with the battery temperature when it is currently awakened; a battery capacity correction value is determined based on the sleep time, the ambient temperature difference, and the battery temperature difference; and the battery capacity threshold is obtained by the difference between the initial true battery state of charge and the battery capacity correction value. It should be noted that to avoid battery capacity loss at lower charge levels (i.e., when the initial true state of charge is greater than or equal to the third limit but less than the second limit), the battery capacity correction value is used to adjust the battery capacity.

[0056] For example, if the initial true battery state of charge is 50% and the battery power correction value is determined to be 2%, then the power threshold is 48%. If the second limit is 90% and the third limit is 30%, then when the initial true state of charge is greater than or equal to 30% and less than or equal to 90%, and the real-time true state of charge is greater than 48%, the rate of decrease of the displayed state of charge is slowed down, that is, the decrease in the displayed state of charge is controlled to be less than the decrease in the true state of charge.

[0057] In a preferred embodiment, if the real-time true state of charge is greater than a second limit and less than a first limit, the displayed state of charge decrease is controlled to be equal to the actual state of charge decrease. That is, at this time, the scheme to slow down the rate of decrease of the displayed state of charge is not implemented, but the displayed SOC is controlled to follow the change of the real SOC.

[0058] In a preferred embodiment, if the real-time true state of charge is less than or equal to a second limit, the method for controlling the decrease in the displayed state of charge is as follows: Obtain the difference between the target displayed state of charge and the real-time true state of charge to obtain a first difference; obtain the difference between the real-time true state of charge and the first charge value to obtain a second difference; determine a first charge change value based on the first difference and the second difference, and control the decrease in the displayed state of charge to be equal to the sum of the decrease in the true state of charge and the first charge change value. That is, at this time, the strategy to slow down the rate of decrease in the displayed state of charge is cancelled, and instead, a strategy to make the displayed state of charge (SOC) catch up with the true SOC is implemented to reduce the difference between the true SOC and the displayed SOC.

[0059] Wherein, the real-time true state of charge (SOC) at the first charge value is equal to the target displayed SOC, that is, the first charge value is the SOC value when the real-time true SOC is equal to the target displayed SOC. At this time, the true state of charge corresponding to the second limit is the first target true state of charge. The first charge value is determined based on the difference between the first target true state of charge and the second limit. The larger the difference between the first target true state of charge and the second limit, the smaller the corresponding first charge value. The relationship between the difference between the first target true state of charge and the second limit and the first charge value is obtained through calibration.

[0060] The formula for calculating the first charge change value based on the first difference and the second difference can be: First charge change value = First difference / (Second difference * 1000).

[0061] For example, when the target displayed SOC is 50%, the real-time SOC is equal to the target displayed SOC. Then, the first charge value is 50%, and the second difference is real-time SOC - 50%. The first difference is target displayed SOC - real-time SOC. The first charge change value is (target displayed SOC - real-time SOC) / ((real-time SOC - 50%) * 1000). When the real SOC decreases by 0.1%, the decrease in displayed charge state is 0.1% + the first charge change value.

[0062] In a preferred embodiment, if the initial true state of charge (SOC) is greater than or equal to a third limit and less than a second limit, and the real-time true SOC is less than the charge threshold, then the method for controlling the decrease in displayed SOC includes: obtaining a third difference based on the difference between the target displayed SOC and the charge threshold; obtaining a fourth difference by acquiring the difference between the real-time true SOC and the second charge value; determining a second charge change value based on the third difference and the fourth difference, and controlling the decrease in displayed SOC to be equal to the sum of the decrease in true SOC and the second charge change value. That is, at this point, the strategy to slow down the rate of decrease in displayed SOC is cancelled, and instead, a strategy to make the displayed SOC catch up with the true SOC is implemented to reduce the difference between the true SOC and the displayed SOC.

[0063] Wherein, the real-time true state of charge (SOC) at the second charge value is equal to the target displayed SOC, that is, the second charge value is the SOC value when the real-time true SOC is equal to the target displayed SOC. At this time, the true state of charge corresponding to the second limit value is the second target true state of charge. The second charge value is determined based on the difference between the second target true state of charge and the target displayed state of charge. The larger the difference between the second target true state of charge and the target displayed state of charge, the smaller the corresponding second charge value. The relationship between the difference between the second target true state of charge and the target displayed state of charge and the second charge value is obtained through calibration.

[0064] The formula for determining the second charge change value based on the third difference and the fourth difference can be: Second charge change value = Third difference / (Fourth difference * 1000).

[0065] For example, when the target displayed SOC is 50%, the real-time true SOC is equal to the target displayed SOC. Then, the second charge value is 50%, the third difference = target displayed SOC - charge threshold = target displayed SOC + battery charge correction - initial true SOC; the fourth difference = real-time true SOC - 50%; the second charge change value = (target displayed SOC + battery charge correction - initial true SOC) / ((real-time true SOC - 50%) * 1000); when the true SOC decreases by 0.1%, the displayed SOC decrease = 0.1% + the second charge change value.

[0066] In a preferred embodiment, to prevent the vehicle from frequently going into sleep mode due to frequent short-distance use by users, which could lead to an excessive difference between the actual SOC and the displayed SOC, the following can be further proposed: obtaining the difference between the target displayed SOC and the real-time actual SOC to obtain a fifth difference; if the fifth difference is greater than the target difference, then controlling the decrease in the displayed SOC to be greater than the decrease in the actual SOC, so that the real-time actual SOC and the displayed SOC gradually become equal.

[0067] The target difference can be set according to the user's actual needs, for example, 6%. When the difference between the target displayed SOC and the real-time SOC is greater than 6%, the strategy to slow down the rate of decline of the displayed SOC is not implemented, and instead, the strategy to make the displayed SOC catch up with the real SOC is implemented. To prevent the displayed SOC from declining too quickly during vehicle use after wake-up, in this case, if the real SOC does not decline beyond the minimum difference (e.g., 2%, which can be set according to the user's actual needs) after vehicle wake-up, the catching-up strategy is not implemented. In this case, the displayed SOC follows the change of the real SOC. The method to slow down the rate of decline of the displayed state of charge is only re-implemented when the difference between the target displayed SOC and the real-time SOC falls below a certain value again (e.g., 2%, which can be set according to the user's actual needs).

[0068] In a preferred embodiment, when the vehicle is in a charging state, it is equivalent to being continuously awake. The control method for displaying the state of charge includes: in the charging state, acquiring the actual state of charge of the new energy vehicle battery pack at the start of charging, the real-time actual state of charge during charging, and the displayed state of charge at the start of charging; if the actual state of charge at the start of charging is less than the displayed state of charge at the start of charging, then controlling the increase in the displayed state of charge to be less than the increase in the actual state of charge, and updating the displayed state of charge during charging according to the increase in the displayed state of charge, so that the real-time actual state of charge during charging gradually catches up with the displayed state of charge during charging.

[0069] Step S104: Obtain the target display state of charge based on the decrease in the displayed state of charge and the initial display state of charge, and display the target display state of charge.

[0070] Understandably, the final displayed state of charge is the target displayed state of charge, which is determined by the initial state of charge stored in the system and the aforementioned decrease in the displayed state of charge. For example, if the initial displayed state of charge is 92%, and the decrease in the displayed state of charge is 2% after the aforementioned control method, then the final displayed state of charge will be 90%.

[0071] Based on the above embodiments, the new energy vehicle power display control method of this application can slow down the rate of decline of the displayed state of charge when the vehicle is woken up from a high power state and / or a low power state when it is not charging, so as to match the power decline value with the user's actual driving distance and give the user a better range experience.

[0072] A second aspect of this application provides a power display and control device for a new energy vehicle. Figure 2 This is a schematic diagram of the structure of the new energy vehicle power display and control device provided in the embodiment of this application.

[0073] The new energy vehicle power display and control device 200 includes an acquisition module 201, a first control module 202, a second control module 203, and a display module 204. Details are as follows:

[0074] The acquisition module 201 is used to acquire the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack when waking up the vehicle in a non-charging state.

[0075] The first control module 202 is used to acquire the real-time true state of charge, and when the initial true state of charge is greater than or equal to the first limit, it controls the display to show that the decrease in the state of charge is less than the decrease in the true state of charge.

[0076] The second control module 203 is used to control the display of the state of charge decrease to be less than the actual state of charge decrease when the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is greater than or equal to the charge threshold. The first limit is greater than the second limit and the second limit is greater than the third limit.

[0077] Display module 204 is used to obtain a target display state of charge based on the decrease in display state of charge and the initial display state of charge, and to display the target display state of charge.

[0078] In one specific embodiment, the acquisition module 201 includes a first acquisition unit and a second acquisition unit. The first acquisition unit is used to detect and calculate the state of charge of the battery pack in real time, i.e., the true state of charge (true SOC), and send the true state of charge to the second acquisition unit. The first acquisition unit can be a battery management system (BMS). The second acquisition unit is used to receive the true state of charge sent by the first acquisition unit, process the true state of charge to obtain the state of charge to be displayed on the instrument, i.e., the displayed state of charge (displayed SOC). The second acquisition unit can be a vehicle control unit (VCU).

[0079] A third aspect of the embodiments of this application provides a vehicle, Figure 3 This is a schematic structural block diagram of a vehicle provided as an embodiment of this application. Figure 3As shown, the vehicle 300 provided in this application embodiment includes: a new energy vehicle power display and control device 200 as described in the second aspect.

[0080] The vehicle provided in this application embodiment can slow down the rate of battery level decline each time the vehicle is woken up when it has a high battery level and / or a low battery level, ensuring that the range does not decrease too quickly and improving the user's battery life experience.

[0081] It should be noted that in the above embodiments, the descriptions of each embodiment have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0083] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0084] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0085] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0086] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the above-described new energy vehicle power display control method.

[0087] If the modules / units integrated into the new energy vehicle power display control device / terminal equipment are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above.

[0088] The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0089] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0090] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0091] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0092] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application.

[0093] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for controlling the battery level display of a new energy vehicle, characterized in that, include: When waking up the vehicle in a non-charging state, obtain the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack; Obtain the real-time true state of charge; if the initial true state of charge is greater than or equal to a first limit, control the display state of charge decrease to be less than the actual state of charge decrease. If the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is greater than or equal to the charge threshold, then the control displays that the decrease in state of charge is less than the decrease in true state of charge, the first limit is greater than the second limit, and the second limit is greater than the third limit. The target display state of charge is obtained based on the decrease in the displayed state of charge and the initial displayed state of charge, and the target display state of charge is displayed. After obtaining the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack, the method further includes: If the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is less than the power threshold, then the third difference is obtained based on the difference between the target displayed state of charge and the power threshold. The difference between the real-time true state of charge and the second charge value is obtained to obtain the fourth difference; The second charge change value is determined based on the third and fourth differences, and the displayed state of charge decrease is controlled to be equal to the sum of the actual state of charge decrease and the second charge change value.

2. The new energy vehicle battery display control method as described in claim 1, characterized in that, If the initial true state of charge is greater than or equal to the first limit, then the control to display a decrease in the state of charge that is less than the decrease in the true state of charge, further includes: If the real-time true state of charge is greater than the second limit and less than the first limit, then the control displays the decrease in state of charge as equal to the decrease in true state of charge.

3. The new energy vehicle battery display control method as described in claim 2, characterized in that, If the real-time true state of charge is greater than the second limit and less than the first limit, then the displayed state of charge decrease is controlled to be equal to the actual state of charge decrease, and the process further includes: If the real-time true state of charge is less than or equal to the second limit, then the difference between the target displayed state of charge and the real-time true state of charge is obtained, and the first difference is obtained. The difference between the real-time state of charge and the first charge value is obtained to get the second difference. The first charge change value is determined based on the first difference and the second difference, and the displayed state of charge decrease is controlled to be equal to the sum of the actual state of charge decrease and the first charge change value.

4. The new energy vehicle battery level display control method as described in claim 1, characterized in that, The method further includes: Obtain the difference between the target's displayed state of charge and the real-time true state of charge to obtain the fifth difference value; If the fifth difference is greater than the target difference, the displayed state of charge decrease is controlled to be greater than the actual state of charge decrease, so that the real-time actual state of charge and the displayed state of charge gradually become equal.

5. The new energy vehicle battery level display control method as described in claim 1, characterized in that, The method further includes: During charging, the system acquires the actual state of charge of the new energy vehicle battery pack when charging begins, the real-time state of charge during charging, and the displayed state of charge when charging begins. If the actual state of charge at the start of charging is less than the displayed state of charge at the start of charging, the increase in the displayed state of charge is controlled to be less than the increase in the actual state of charge, and the displayed state of charge during charging is updated according to the increase in the displayed state of charge, so that the real-time state of charge during charging gradually catches up with the displayed state of charge during charging.

6. The new energy vehicle battery level display control method as described in claim 1, characterized in that, When the vehicle is woken up while not charging, the control display shows that the increase in state of charge is equal to the actual increase in state of charge.

7. A power display and control device for new energy vehicles, characterized in that, include: The acquisition module is used to acquire the initial true state of charge and the initial displayed state of charge of the new energy vehicle battery pack when waking up the vehicle in a non-charging state. The first control module is used to acquire the real-time true state of charge, and when the initial true state of charge is greater than or equal to the first limit, it controls the display to show that the decrease in the state of charge is less than the decrease in the true state of charge. The second control module is used to control the display of the state of charge decrease to be less than the actual state of charge decrease when the initial true state of charge is greater than or equal to the third limit and less than the second limit, and the real-time true state of charge is greater than or equal to the charge threshold. The first limit is greater than the second limit, and the second limit is greater than the third limit. The display module is used to obtain the target display state of charge based on the decrease in the display state of charge and the initial display state of charge, and to display the target display state of charge. The first control module is further configured to: if the initial true state of charge is greater than or equal to a third limit and less than a second limit, and the real-time true state of charge is less than the charge threshold, then obtain a third difference based on the difference between the target displayed state of charge and the charge threshold; obtain the difference between the real-time true state of charge and the second charge value to obtain a fourth difference; determine a second charge change value based on the third difference and the fourth difference, and control the decrease in displayed state of charge to be equal to the sum of the decrease in true state of charge and the second charge change value.

8. A vehicle, characterized in that... ,include: The new energy vehicle power display and control device as described in claim 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the new energy vehicle power display control method as described in any one of claims 1-6.

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