Methods, devices, equipment, vehicles, and media for displaying remaining charging time.

Abstract

This application provides a method, apparatus, device, vehicle, and medium for controlling the display of remaining charging time. The method includes: when a battery enters the charging final stage, determining the battery's state data and a currently displayed first remaining charging time; searching for a second remaining charging time corresponding to the state data in preset relationship information; estimating a third remaining charging time required to fully charge the battery based on the second remaining charging time; and determining a unit time variable based on the third remaining charging time and the first remaining charging time, thereby controlling the display of the remaining charging time at the charging final stage based on the unit time variable and the first remaining charging time. Using the technical solution provided by this application, the remaining charging time corresponding to the charging final stage can be determined more accurately, providing users with a better charging experience at the charging final stage.

Description

Technical Field

[0001] This application relates to the field of vehicle charging technology, and in particular to a method, device, equipment, vehicle, and medium for displaying and controlling the remaining charging time. Background Technology

[0002] Electric vehicles are vehicles that use batteries as their energy source. While solving the problem of air pollution caused by exhaust emissions from traditional fuel vehicles, they also reduce the consumption of non-renewable resources such as petroleum.

[0003] During the use of electric vehicles, the battery needs to be charged frequently. A key concern for customers (or users) during battery charging is the charging time, especially the remaining time until a full charge (i.e., the remaining charging time), to plan subsequent activities. The remaining charging time is affected by various factors such as battery temperature and voltage. Existing solutions can accurately estimate the remaining charging time before the battery reaches the end of the charging process. However, once the battery reaches the end of the charging process, the estimated remaining charging time differs significantly from the actual required remaining charging time. For example, the actual remaining charging time may decrease by more than ten minutes, but the estimated remaining charging time may only decrease by one minute. This undoubtedly leads to a poor charging experience for customers. Summary of the Invention

[0004] In view of the above problems, this application provides a charging remaining time display control method, a vehicle, and a readable storage medium that solves or at least partially solves the above problems.

[0005] In one embodiment of this application, a method for controlling the display of remaining charging time is provided. The method includes:

[0006] When the battery reaches the end of its charging process, the battery's status data and the currently displayed first remaining charging time are determined.

[0007] In the preset relationship information, find the second remaining charging time corresponding to the status data;

[0008] Based on the second remaining charging time, estimate the third remaining charging time required to fully charge the battery;

[0009] Based on the third remaining charging time and the first remaining charging time, a unit time variable is determined, and based on the unit time variable and the currently displayed first remaining charging time, the display of the remaining charging time of the battery at the end of the charging stage is controlled.

[0010] In another embodiment of this application, a charging remaining time display control device is also provided. The device includes:

[0011] The determination module is used to determine the battery's status data and the currently displayed first remaining charging time when the battery enters the charging end phase.

[0012] The lookup module is used to find the second remaining charging time corresponding to the status data in the preset relationship information;

[0013] An estimation module is used to estimate a third remaining charging time required to fully charge the battery based on the second remaining charging time.

[0014] The determining module is further configured to determine a unit time variable based on the third remaining charging time and the first remaining charging time, so as to control the display of the remaining charging time of the battery at the end of the charging stage based on the unit time variable and the first remaining charging time.

[0015] In another embodiment of this application, an electronic device is also provided. The electronic device includes: a processor and a memory; wherein the memory is used to store one or more computer instructions; the processor, coupled to the memory, is used to execute the at least one or more computer instructions to implement the steps in the charging remaining time display control method provided in the above embodiments.

[0016] In yet another embodiment of this application, a vehicle is also provided. The vehicle includes: a battery; and also includes the electronic equipment provided in the above embodiments.

[0017] In another embodiment of this application, a computer-readable storage medium is also provided, on which a computer program / instruction is stored, which, when executed by a processor, causes the processor to implement the steps in the charging remaining time display control method provided in the above embodiments.

[0018] In another embodiment of this application, a computer program product is also provided, on which a computer program / instruction is stored, which, when executed by a processor, causes the processor to implement the steps in the charging remaining time display control method provided in the above embodiments.

[0019] The technical solution provided in this application determines the battery's status data and the currently displayed first remaining charging time when the battery enters the final stage of charging. It then searches for the second remaining charging time corresponding to the status data in preset relationship information. Based on the second remaining charging time corresponding to the status data, it estimates the third remaining charging time required to fully charge the battery. This estimated third remaining charging time and the currently displayed first remaining charging time are then used to determine a unit time variable. Subsequently, based on the unit time variable and the currently displayed first remaining charging time, the display of the remaining charging time at the final stage of charging is controlled. This solution, based on preset relationship information, can obtain a relatively accurate remaining charging time corresponding to the status data, thus ensuring the accuracy of the determined unit time variable. Therefore, when controlling the display of the remaining charging time at the final stage of charging based on the unit time variable, it can provide users with a better charging experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic flowchart of a charging remaining time display control method according to an embodiment of this application is shown;

[0022] Figure 2a This illustration shows the relationship between the state of charge, state of health, and remaining charging time of a battery when it enters the charging end according to an embodiment of this application.

[0023] Figure 2b A schematic diagram illustrating the principle of a charging remaining time display control method provided in an embodiment of this application is shown.

[0024] Figure 3 A schematic diagram of the structure of a charging remaining time display control device provided in an embodiment of this application is shown;

[0025] Figure 4 A schematic diagram of the structure of a vehicle provided in one embodiment of this application is shown. Detailed Implementation

[0026] To address the issue mentioned in the background that existing methods for estimating the remaining charging time at the end of the battery charging process have significant errors, this application provides a charging remaining time display and control method, a vehicle, and a readable storage medium to achieve accurate estimation of the remaining charging time at the end of the battery charging process, thereby improving the customer experience. To enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0027] In some processes described in the specification, claims, and accompanying drawings of this application, multiple operations appearing in a specific order are included. These operations may be executed out of order or in parallel. Operation numbers such as 101, 102, etc., are merely used to distinguish different operations and do not represent any execution order. Furthermore, these processes may include more or fewer operations, and these operations may be executed sequentially or in parallel. It should be noted that the terms "first," "second," etc., used herein are used to distinguish different messages, devices, modules, etc., and do not represent a sequential order, nor do they limit "first" and "second" to different types. The term "or / and" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A or / and B means that A can exist alone, A and B can exist simultaneously, or B can exist alone. The character " / " in this application generally indicates that the preceding and following related objects have an "or" relationship. It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system including said element. Furthermore, the following embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] Before introducing the specific solutions provided in this application, let's first explain some of the technical terms involved in this application.

[0029] Remaining charging time refers to the time required for the battery to fully charge from its current level.

[0030] The charging end refers to the stage in the battery charging process where charging is nearing completion (i.e., the battery is close to being fully charged). The amount of electricity currently stored in a battery is usually reflected by its State of Charge (SOC). The battery's state of charge is generally calculated based on factors such as the maximum voltage of a single cell. The maximum voltage of a single cell can also reflect, to some extent, whether the battery is close to being fully charged. Based on this, in the technical solutions provided in the embodiments of this application, the charging end specifically refers to the stage where at least one of the battery's SOC and the maximum voltage of a single cell is greater than a preset threshold.

[0031] The following is a description of the charging remaining time display control method provided in this application.

[0032] Figure 1 This illustration shows a flowchart of a charging remaining time display control method according to an embodiment of this application. The method provided in this embodiment is applied to electric vehicles (hereinafter referred to as vehicles). In specific implementation, the executing entity of this scheme is a processing unit or system within the vehicle. The processing unit or system can be, but is not limited to, a VCU (Vehicle Control Unit), ECU (Electronic Control Unit), BMS (Battery Management System), charging controller, etc., and this embodiment does not limit this. Figure 1 As shown, the method includes the following steps:

[0033] 101. When the battery enters the final stage of charging, determine the battery's status data and the currently displayed first remaining charging time;

[0034] 102. In the preset relationship information, find the second remaining charging time corresponding to the status data;

[0035] 103. Based on the second remaining charging time, estimate the third remaining charging time required to fully charge the battery;

[0036] 104. Based on the third remaining charging time and the first remaining charging time, determine a unit time variable, and control the display of the remaining charging time of the battery at the end of the charging stage based on the unit time variable and the currently displayed first remaining charging time.

[0037] In practical applications, chargers typically use a constant current and constant voltage method to charge vehicle batteries. Specifically, the constant current and constant voltage charging process can be roughly divided into two stages: constant current charging and constant voltage charging. In the constant current charging stage, the charging current remains constant, the charged amount increases rapidly, and the battery voltage rises. When the voltage reaches a predetermined value, the constant voltage charging stage begins, where the current gradually decreases until it drops to zero, and the battery is fully charged. Based on this description of the constant current and constant voltage charging method, and the definition of the charging end in the above application, in a scenario where a vehicle battery is charged using a constant current and constant voltage method, the charging end in this application refers to the constant voltage charging stage of the battery. Before estimating the remaining charging time corresponding to the charging end of the battery and displaying and controlling the remaining charging time corresponding to the battery being in the charging stage, it is necessary to determine whether the battery has entered the charging end. In specific implementation, during the battery charging process, the determination of whether the battery has entered the charging end can be based on real-time collected battery characteristic information (such as state of charge (SOC), maximum single-cell voltage, etc.). That is, before performing steps 101 to 104 above, the method provided in this embodiment may further include the following steps:

[0038] 100a. During battery charging, acquire the characteristic information of the battery;

[0039] 100b. Based on the feature information, determine whether the battery has entered the charging end.

[0040] In practice, the aforementioned battery characteristics may include, but are not limited to, battery current, voltage, state of charge (SOC) reflecting battery capacity, state of health (SOH) reflecting the degree of degradation, and state of power (SOP) reflecting the maximum charging and discharging power. Specifically, the voltage may refer to the highest voltage of a single cell. The SOC (also known as remaining capacity) specifically refers to the ratio of the battery's remaining capacity to its capacity at full charge, usually expressed as a percentage, with a value ranging from 0 to 1. When SOC = 0, the battery is fully discharged with no remaining capacity; when SOC = 1, the battery is fully charged. The battery's SOC cannot be directly measured; it can only be estimated using parameters such as voltage, charging / discharging current, and internal resistance. Specifically, the SOC can be estimated based on the highest voltage of a single cell. Based on this, when determining whether a battery has entered the charging end based on its characteristic information, the judgment can be made based on at least one of the State of Charge (SOC) and the highest voltage of a single cell. As long as at least one of the SOC and the highest voltage of a single cell meets the preset threshold condition, the battery can be considered to have entered the charging end.

[0041] That is, in a specific implementable technical solution, the above-mentioned 100b "determining whether the battery has entered the charging end based on the feature information" may specifically include:

[0042] 100b1. Based on the aforementioned feature information, determine the state of charge and maximum voltage of a single cell of the battery;

[0043] 100b2. Determine whether at least one of the state of charge and the highest voltage of the single cell meets the set conditions;

[0044] 100b3. If the set conditions are met, then the battery is determined to have entered the charging end.

[0045] 100b4. If the set conditions are not met, it is determined that the battery has not entered the charging end.

[0046] In specific implementation, this embodiment sets threshold conditions for the State of Charge (SOC) and the maximum voltage of a single cell, respectively. When determining whether a battery has entered the charging end phase, it can include comparing at least one of the battery's SOC and the maximum voltage of a single cell with the corresponding threshold. If at least one of the battery's SOC or the maximum voltage of a single cell is greater than the corresponding threshold, the battery is determined to have entered the charging end phase; otherwise, it is determined that the battery has not entered the charging end phase. The thresholds set for the SOC and the maximum voltage of a single cell can be determined based on empirical values ​​derived from the battery's inherent characteristics (such as internal resistance). For example, the third threshold set for the SOC can be 90% or 93%, and the fourth threshold set for the maximum voltage of a single cell can be 3.6V or 4.3V. No limitation is made here, and those skilled in the art will understand that the third and fourth thresholds can be any other suitable values. Assuming the third threshold is 93% and the fourth threshold is 3.6V, when determining whether a battery has entered the charging end, if the state of charge (SOC) is greater than or equal to 93% and / or the highest voltage of a single cell is greater than or equal to 3.6V, the battery can be considered to have entered the charging end, and steps 101 to 104 above will then be executed. Conversely, if the SOC is less than 93% and / or the highest voltage of a single cell is less than 3.6V, the battery is considered not to have entered the charging end, and the battery's SOC and the highest voltage of a single cell will continue to be monitored until it is determined that the battery has entered the charging end.

[0047] It should be noted that the remaining charging time for the battery before it reaches the end of the charging process can be determined and displayed using existing methods. For details on determining the remaining charging time before the battery reaches the end of the charging process, please refer to existing materials; details will not be elaborated here.

[0048] When determining that the battery has entered the charging end, the battery's state data can be further determined based on the acquired characteristic information corresponding to the battery entering the charging end, and the currently displayed remaining charging time can be obtained. This data is then analyzed and processed in subsequent steps based on the state data and the currently displayed remaining charging time to determine the unit time variable corresponding to the battery being at the charging end. This unit time variable is used to control the display of the remaining charging time during the charging end stage. The specific determination process for the unit time variable, etc., can be found in the relevant content below and will not be elaborated here. Therefore, the battery state data mentioned in 101 above is determined based on the acquired characteristic information corresponding to the battery entering the charging end. This state data can be, but is not limited to, State of Charge (SOC), State of Health (SOH), and maximum single-cell voltage. Specifically, the state of health refers to battery capacity, health level, and performance status; simply put, it refers to the ratio of performance parameters to standard parameters after a period of battery use. For a detailed introduction to the state of health, please refer to existing solutions, which will not be described in detail here. The currently displayed first remaining charging time is the remaining charging time estimated based on existing solutions at the moment the battery just enters the charging end, before the battery enters the charging end stage. For details on the process of estimating the remaining charging time based on existing solutions before the battery reaches the end of the charging process, please refer to the existing solutions; they will not be elaborated here.

[0049] In this embodiment, to accurately estimate the remaining charging time when the battery enters the charging final stage, and to accurately determine the unit time variable corresponding to the battery entering the charging final stage based on the estimated remaining charging time and the currently displayed first remaining charging time, this embodiment pre-collects a large amount of remaining charging time data for battery status data, such as State of Charge (SOC), State of Health (SOH), and maximum single-cell voltage. By analyzing and processing this large amount of remaining charging time data, the correspondence between multiple sets of battery status parameters and the second remaining charging time when the battery is at the charging final stage is obtained and pre-stored in corresponding storage media for retrieval when needed. Each set of status parameters may include at least two status parameters; for example, a set of status parameters may consist of SOC and SOH. The preset relationship information mentioned in 102 above refers to the correspondence between the pre-stored multiple sets of battery state parameters and the remaining second charging time. That is, the preset relationship information includes multiple correspondences, each representing the relationship between a set of state parameters and the remaining second charging time. Each set of state parameters contains at least two state parameters. Given that the battery state data includes at least: State of Charge (SOC), State of Health (SOH), and maximum single-cell voltage, the at least two state parameters included in a set of state parameters are at least two of the following: State of Charge (SOC), State of Health (SOH), and maximum single-cell voltage. Based on this,

[0050] In a specific implementable technical solution, the above-mentioned 102 "finding the second remaining charging time corresponding to the state data in the preset relationship information" may specifically include:

[0051] 1020. Determine at least one set of state parameters;

[0052] 1021. In the preset relationship information, find the corresponding relationship that matches the at least one set of state parameters;

[0053] 1022. Based on the found correspondence, find the second remaining charging time corresponding to the at least one set of state parameters.

[0054] In specific implementation, based on the state of charge (SBC), state of health (SBC), and maximum voltage of a single cell, at least one set of state parameters can be determined, including but not limited to: a first set of state parameters composed of SBC and SBC, a second set of state parameters composed of SBC and maximum voltage of a single cell, a third set of state parameters composed of SBC and maximum voltage of a single cell, a fourth set of state parameters composed of SBC, SBC, and maximum voltage of a single cell, and so on. The data for a set of state parameters in a correspondence, for example, when the set of state parameters is composed of SBC and SBC, the data for SBC and SBC can be numerical values ​​or ranges of values. When the data for this set of state parameters is known, the corresponding second remaining charging time can be found from the corresponding correspondence. That is to say, it can be a range of state parameters. For example, when a set of state parameters is composed of SBC and SBC, the data for the SBC range and the SBC range correspond to the same remaining charging time. For example, a SBC of 93%–95% and a SBC of 89%–92% correspond to the same remaining charging time of 40 minutes.

[0055] Figure 2 illustrates the correspondence between the first set of state parameters, consisting of the State of Charge (SOC) and the State of Health (SOH), and the remaining charging time. As shown in Figure 2, when the battery's state of health is 86%, the remaining charging time corresponding to the battery's state of charge at 90%, 91%, 92%, 93%, ..., 99%, and 100% is T, respectively. 01 T 02 T 03 ... T 10 For example, when the battery's health status and state of charge are 86% and 92.5% respectively, the corresponding remaining charging time T can be found. 03 Read T 03 = 50 minutes.

[0056] Similarly, other sets of battery state parameters can also be found, such as the second remaining charging time corresponding to the second set of state parameters consisting of the health state and the highest voltage of the single cell, and / or the second remaining charging time corresponding to the third set of state parameters consisting of the state of charge and the highest voltage of the single cell, etc., without specific limitations here.

[0057] Using the second remaining charging time corresponding to at least one set of state parameters found in step 102, the remaining charging time required to fully charge the battery can be estimated, thereby obtaining the estimated remaining charging time. That is, one feasible technical solution for step 103, "estimate the third remaining charging time required to fully charge the battery based on the second remaining charging time," is as follows:

[0058] 1031. Based on the second remaining charging time corresponding to the at least one set of state parameters, estimate the remaining charging time required to fully charge the battery.

[0059] In practice, different weights can be assigned to the remaining second charging time corresponding to each of at least one set of state parameters, and a weighted average method can be used to estimate the remaining third charging time required to fully charge the battery. For example, assuming that the remaining second charging time corresponding to the first set of state parameters consisting of State of Charge (SOC) and State of Health (SOH) is t1, the remaining second charging time corresponding to the second set of state parameters consisting of State of Health (SOH) and the highest voltage of a single cell is t2, the remaining second charging time corresponding to the third set of state parameters consisting of SOC and the highest voltage of a single cell is t3, and the remaining second charging time corresponding to the third set of state parameters consisting of SOC, the highest voltage of a single cell, and the state of health is t4, then the remaining third charging time required to fully charge the battery can be estimated using a weighted average method. Specifically, the estimated remaining third charging time T1 is:

[0060] T1=(w1*t1+w2*t2+w3*t3+w4*t4) / 4;

[0061] Among them, w1, w2, w3 and w4 represent the weights assigned to the remaining second charging time corresponding to the four sets of state parameters: State of Charge (SOC) and State of Health (SOH), State of Health (SOH) and Maximum Voltage of a Single Cell, State of Charge (SOC) and Maximum Voltage of a Single Cell, and State of Charge (SOC), Maximum Voltage of a Single Cell and State of Health, respectively.

[0062] Furthermore, in a specific feasible technical solution, at least one set of state parameters in the above 1031 includes: a first set of state parameters consisting of the state of charge and the state of health, and a second set of state parameters consisting of the state of health and the highest voltage of the single cell.

[0063] Accordingly, the third remaining charging time required to fully charge the battery is estimated using a weighted average method based on the second remaining charging time corresponding to the first set of state parameters consisting of the state of charge and the state of health, and the second remaining charging time corresponding to the second set of state parameters consisting of the state of health and the highest voltage of the individual cells. For the specific estimation process, please refer to the relevant content in the example above, which will not be elaborated here.

[0064] After estimating the third remaining charging time required to fully charge the battery via step 103, the estimated third remaining charging time can be further compared with the previously obtained currently displayed first remaining charging time to determine the rate of change of time. Based on this rate of change of time and the estimated third remaining charging time, a unit time variable is determined, enabling control of the remaining charging time display when the battery is at the end of charging. Specifically, in one feasible technical solution, step 104, "determining the unit time variable based on the third remaining charging time and the first remaining charging time," can specifically include:

[0065] 1041. Analyze the relationship between the remaining third charging time and the remaining first charging time to determine the rate of change of time;

[0066] 1042. Based on the time change rate and the remaining third charging time, determine the unit time variable.

[0067] In the above 1041, when analyzing the relationship between the estimated remaining third charging time and the currently displayed remaining first charging time to determine the rate of change of time, the rate of change of time can be determined based on the difference between the estimated remaining third charging time and the currently displayed remaining first charging time. Specifically, for ease of description, the estimated remaining third charging time is abbreviated as T1, and the currently displayed remaining first charging time is abbreviated as T2. In determining the rate of change of time, it can be first determined whether the difference between T2 and T1 is greater than a first threshold, that is, whether T2-T1 is greater than the first threshold. If so, the rate of change of time is determined to be S1; otherwise, if not, it is further determined whether the difference between T1 and T2 is greater than a second threshold, that is, whether T1-T2 is greater than the second threshold. If so, the rate of change of time is determined to be S2; otherwise, if not, the rate of change of time is determined to be S3.

[0068] The first and second thresholds mentioned above are flexibly set according to actual conditions. For example, the first threshold can be 10 minutes, 15 minutes, etc., and the third threshold can be 7 minutes, 9 minutes, etc., without specific limitations here. Regarding the time change rates S1, S2, and S3, in some embodiments, corresponding fixed values ​​can also be flexibly set according to actual conditions. For example, the time change rate S1 can be 0.2, 0.4, etc., the time change rate S2 can be 0.08, 0.06, etc., and the time change rate S3 can be 0.1, again without specific limitations here. However, when the time change rates S1, S2, and S3 are set to fixed values ​​according to the actual situation, the conditions that the set time change rates S1, S2, and S3 must respectively guarantee are as follows: when determining the unit time variable based on the time change rate S1 and the estimated remaining third charging time, the absolute value of the determined unit time variable is greater than 1; when determining the unit time variable based on the time change rate S2 and the estimated remaining third charging time, the absolute value of the determined unit time variable is greater than 1; when determining the unit time variable based on the time change rate S3 and the estimated remaining charging time, the absolute value of the determined unit time variable is equal to 1.

[0069] In other embodiments, to ensure more accurate determination of the unit time variable, the time change rates S1, S2, and S3 can also be determined based on the estimated third remaining charging time T1 and the currently displayed first remaining charging time T2. Specifically, the time change rate S1 can be set to (T2 / T1)*10%, the time change rate S2 to (T1 / T2)*100%, and the time change rate S3 to 1 / T1. The set time change rates S1, S2, and S3 must also meet the conditions described above. As a preferred example, this embodiment preferably selects the method described above for determining the time change rates S1, S2, and S3 based on the estimated remaining charging time T1 and the currently displayed remaining charging time T2. That is,

[0070] In a specific and feasible technical solution, the above-mentioned 1041 "analyzing the relationship between the third remaining charging time and the first remaining charging time to determine the time change rate" can be implemented by the following steps;

[0071] Determine whether the difference between the remaining charging time of the first charge and the remaining charging time of the third charge is greater than a first threshold.

[0072] If so, the time change rate is determined to be a tenth of the ratio of the remaining time of the first charging to the remaining time of the third charging.

[0073] If not, then determine whether the difference between the third remaining charging time and the first remaining charging time is greater than the second threshold.

[0074] If so, the time change rate is determined to be the percentage of the remaining third charging time to the remaining first charging time;

[0075] If not, then the rate of change of time is determined to be the reciprocal of the remaining time of the third charge.

[0076] In the above 1042, the product of the rate of change of time and the estimated remaining time of the third charge can be used as the unit time variable. That is, the unit time variable ΔT = estimated remaining time of the third charge * rate of change of time.

[0077] Based on the determined unit time variable ΔT and the currently displayed first remaining charging time, the remaining charging time display when the battery is in the final stage of charging can be completed. For example, assuming that the currently displayed first remaining charging time is 20 minutes when the battery enters the final stage of charging, and the unit time variable determined through the above steps is 2 minutes, then when controlling the display of the remaining charging time when the battery is in the final stage of charging, the currently displayed first remaining charging time is decremented by 2 every minute that passes. That is, from the time the battery enters the final stage of charging, after one minute, the displayed remaining charging time is updated to 18 minutes, and after another minute, the displayed remaining charging time is updated to 16 minutes, and so on, until the battery is fully charged (that is, the displayed remaining charging time is zero, in which case a prompt message such as "charging complete" can be directly displayed).

[0078] The technical solution provided in this embodiment determines the battery's status data and the currently displayed first remaining charging time when the battery enters the final stage of charging. It then retrieves the second remaining charging time corresponding to the status data from preset relationship information. Based on the second remaining charging time corresponding to the status data, it estimates the third remaining charging time required to fully charge the battery. This estimated third remaining charging time and the currently displayed first remaining charging time are then used to determine a unit time variable. Subsequently, based on the unit time variable and the currently displayed first remaining charging time, the display of the remaining charging time at the final stage of charging is controlled. In this solution, the preset relationship information is obtained by statistically analyzing a large amount of charging time data. Therefore, based on the preset relationship information, a relatively accurate remaining charging time corresponding to the status data can be obtained, thus ensuring the accuracy of the determined unit time variable. Subsequently, when controlling the display of the remaining charging time at the final stage of battery charging based on the unit time variable, a better charging experience can be provided to the user.

[0079] In summary, the charging remaining time display control scheme provided in this embodiment can be briefly summarized as follows: Figure 2bThe process is illustrated below. Specifically: Battery charging begins; the remaining charging time, state of charge (SOC), maximum cell voltage, and state of health (SOH) are acquired in real-time; it is determined whether at least one of SOC and maximum cell voltage exceeds a corresponding set threshold. If so, the battery enters the final stage of charging, and steps are performed to determine the variables per unit time: based on the correspondence between SOC, SOH, and remaining charging time, the second remaining charging time t1 corresponding to the SOC and SOH parameters is determined; based on the correspondence between SOH, maximum cell voltage, and remaining charging time, the second remaining charging time t2 corresponding to the SOH and maximum cell voltage parameters is determined; based on the remaining charging time t2 and t3, the third remaining charging time required to fully charge the battery is estimated. (Abbreviated as T1), determine whether the difference between the first remaining charging time T2 and T1 at the moment the battery enters the charging end is greater than a first threshold. If so, determine the time change rate S1, and determine the unit time variable based on S1 and T1. Subsequently, control the first remaining charging time to change by the unit time variable until the first remaining charging time is zero. If not, determine whether the difference between T1 and T2 is greater than a second threshold. If so, determine the time change rate S2, and determine the unit time variable based on S2 and T1. Subsequently, control the first remaining charging time to change by the unit time variable until the first remaining charging time is zero. If not, determine the time change rate S3, and determine the unit time variable based on S3 and T1. Subsequently, control the first remaining charging time to change by the unit time variable until the first remaining charging time is zero. Charging ends.

[0080] It should be noted that the above describes the determination of the time rate of change S1, time rate of change S2, time rate of change S3, and the unit time variable. Please refer to the relevant content above, and it will not be elaborated on in detail here.

[0081] The above describes the technical solution provided in this application from a software perspective. The following section will explain the technical solution from a hardware perspective. Specifically,

[0082] One embodiment of this application provides a charging remaining time display and control device. In specific implementation, this device is embedded in a processing unit or system within a vehicle. The processing unit or system can be, but is not limited to, a VCU (Vehicle Control Unit), ECU (Electronic Control Unit), BMS (Battery Management System), charging controller, etc., and this embodiment does not limit this specific implementation. The specific structure of the device is as follows: Figure 3As shown, it includes: a determination module 301, a search module 302, and an estimation module 303; wherein,

[0083] The determination module 301 is used to determine the status data of the battery and the currently displayed first remaining charging time when the battery enters the end of charging.

[0084] The lookup module 302 is used to find the second remaining charging time corresponding to the status data in the preset relationship information;

[0085] The estimation module 303 is used to estimate the third remaining charging time required to fully charge the battery based on the second remaining charging time.

[0086] The determining module 301 is further configured to determine a unit time variable based on the third remaining charging time and the first remaining charging time, so as to control the display of the remaining charging time of the battery at the end of the charging stage based on the unit time variable and the currently displayed first remaining charging time.

[0087] Further, the aforementioned state data includes at least: state of charge, health state, and maximum voltage of a single cell; the preset relationship information includes multiple correspondences, which characterize the relationship between a set of state parameters and the second remaining charging time; wherein, the set of state parameters includes at least two state parameters, which are at least two of the state of charge, the health state, and the maximum voltage of the single cell. Accordingly, the aforementioned lookup module 302, when used to find the second remaining charging time corresponding to the state data in the preset relationship information, is specifically used for:

[0088] Based on the state of charge, the health state, and the highest voltage of the individual cell, at least one set of state parameters is determined;

[0089] In the preset relationship information, find the correspondence that matches at least one set of state parameters.

[0090] Based on the found correspondence, the remaining charging time corresponding to at least one set of state parameters is determined.

[0091] Furthermore, when the estimation module 303 is used to estimate the third remaining charging time required to fully charge the battery based on the second remaining charging time, it is specifically used to: estimate the third remaining charging time required to fully charge the battery based on the second remaining charging time corresponding to at least one set of state parameters.

[0092] Furthermore, the aforementioned at least one set of state parameters includes: a first set of state parameters consisting of the state of charge and the state of health, and / or a second set of state parameters consisting of the state of health and the highest voltage of the single cell.

[0093] Furthermore, the aforementioned determining module 301, when used to determine the unit time variable based on the third remaining charging time and the first remaining charging time, is specifically used to: analyze the magnitude relationship between the third remaining charging time and the first remaining charging time, and determine the time change rate; and determine the unit time variable based on the time change rate and the estimated third remaining charging time.

[0094] Furthermore, the aforementioned determining module 301, when analyzing the relationship between the third remaining charging time and the first remaining charging time to determine the rate of change of time, is specifically used for:

[0095] Determine whether the difference between the remaining charging time of the first charge and the remaining charging time of the third charge is greater than a first threshold.

[0096] If so, the time change rate is determined to be a tenth of the ratio of the remaining time of the first charging to the remaining time of the third charging.

[0097] If not, then determine whether the difference between the third remaining charging time and the first remaining charging time is greater than the second threshold.

[0098] If so, the time change rate is determined to be the percentage of the remaining third charging time to the remaining first charging time;

[0099] If not, then the rate of change of time is determined to be the reciprocal of the remaining time of the third charge.

[0100] Furthermore, the device provided in this embodiment may further include: an acquisition module, used to acquire characteristic information of the battery during battery charging; the determination module 301 is further used to determine whether the battery has entered the charging end based on the characteristic information; wherein, the state data corresponding to the battery is determined based on the characteristic information corresponding to the battery when it enters the charging end.

[0101] Furthermore, the aforementioned determining module 301, when used to determine whether the battery has entered the charging end based on the feature information, is specifically used to: determine the state of charge and the maximum voltage of a single cell of the battery based on the feature information; determine whether at least one of the state of charge and the maximum voltage of a single cell meets a preset threshold condition; if the preset threshold condition is met, then determine that the battery has entered the charging end; if the preset threshold condition is not met, then determine that the battery has not entered the charging end.

[0102] It should be noted that the charging remaining time display control device provided in the above embodiments can realize the technical solutions described in the above method embodiments. The specific implementation principles of the above modules or units can be found in the corresponding contents of the above method embodiments, and will not be repeated here.

[0103] Another embodiment of this application provides an electronic device. The structure of this electronic device 400 can be seen as follows: Figure 4 The structure shown. Specifically, as... Figure 4 As shown, the electronic device includes a memory 402 and a processor 403. The memory 402 stores one or more computer instructions; the processor 403, coupled to the memory 402, is used to execute the at least one or more computer instructions (such as computer instructions for implementing data storage logic) to achieve:

[0104] When the battery reaches the end of its charging process, the battery's status data and the currently displayed first remaining charging time are determined.

[0105] In the preset relationship information, find the second remaining charging time corresponding to the status data;

[0106] Based on the second remaining charging time, estimate the third remaining charging time required to fully charge the battery;

[0107] Based on the third remaining charging time and the first remaining charging time, a unit time variable is determined, and based on the unit time variable and the currently displayed first remaining charging time, the display of the remaining charging time of the battery at the end of the charging stage is controlled.

[0108] It should be noted that, in addition to implementing the steps described above, the processor can also implement other method steps provided in the embodiments of the charging remaining time display control method. For details, please refer to the detailed descriptions in the above embodiments; they will not be repeated here. The memory 402 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0109] In addition, the aforementioned electronic device 400 includes, for example, Figure 4 In addition to the structure shown, it may also include communication components, power supply components, etc., which are not limited here.

[0110] Another embodiment of this application provides a vehicle. The structure of the vehicle is as follows: Figure 4The structure is shown. The vehicle includes: a battery 401 for providing power to the battery, and the electronic device 400 provided in the above example. That is, the vehicle also includes: a memory 402 and a processor 403. The memory 402 is used to store one or more computer instructions; the processor 403, coupled to the memory 402 and electrically connected to the battery, is used to execute the at least one or more computer instructions (such as computer instructions for implementing data storage logic) to implement the steps in the charging remaining time display control method embodiment provided in this application.

[0111] Furthermore, the vehicle includes, in addition to Figure 4 In addition to the battery, memory, processor, and other components shown, the vehicle may also include other functional components, such as driving components, display devices, steering wheels, navigation devices, and speaker devices, etc., which are not limited here. For other components that may be included in the vehicle, please refer to the existing technical solutions; they will not be elaborated upon here.

[0112] Another embodiment of this application provides a computer program product (not shown in the accompanying drawings). This computer program product includes a computer program or instructions that, when executed by a processor, cause the processor to implement the steps in the above-described embodiment of the charging remaining time display control method.

[0113] Accordingly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a computer, can implement the steps or functions described in the above embodiments of the charging remaining time display control method.

[0114] The device embodiments described above are merely illustrative. 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 modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0115] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0116] Finally, it should be noted that 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 displaying and controlling the remaining charging time, characterized in that, include: When the battery enters the end of charging, the battery's status data and the currently displayed first remaining charging time are determined, wherein the status data includes at least: state of charge, state of health, and maximum voltage of a single cell; In the preset relationship information, find the second remaining charging time corresponding to the status data; Based on the second remaining charging time, estimate the third remaining charging time required to fully charge the battery; Based on the third remaining charging time and the first remaining charging time, a unit time variable is determined, and based on the unit time variable and the first remaining charging time, the display of the remaining charging time of the battery at the end of the charging stage is controlled. The unit time variable is determined based on the third remaining charging time and the first remaining charging time, including: Determine whether the difference between the remaining charging time of the first charge and the remaining charging time of the third charge is greater than a first threshold. If so, the time change rate is determined to be a tenth of the ratio of the remaining time of the first charging to the remaining time of the third charging. If not, then determine whether the difference between the third remaining charging time and the first remaining charging time is greater than the second threshold. If so, the time change rate is determined to be the percentage of the remaining third charging time to the remaining first charging time; If not, then the rate of change of time is determined to be the reciprocal of the remaining time of the third charge; The unit time variable is determined based on the rate of change of time and the remaining time of the third charging.

2. The method according to claim 1, characterized in that, The preset relationship information includes multiple correspondences, which characterize the relationship between a set of state parameters and the remaining second charging time; wherein, the set of state parameters includes at least two state parameters, which are at least two of the state of charge, the health state, and the highest voltage of the individual cell; and The step of finding the second remaining charging time corresponding to the status data in the preset relationship information includes: Determine at least one set of state parameters; In the preset relationship information, find the corresponding relationship that matches the at least one set of state parameters; Based on the found correspondence, the second remaining charging time corresponding to the at least one set of state parameters is determined.

3. The method according to claim 2, characterized in that, The at least one set of state parameters includes: a first set of state parameters consisting of the state of charge and the state of health, and / or a second set of state parameters consisting of the state of health and the highest voltage of the single cell.

4. A charging remaining time display and control device, characterized in that, include: The determination module is used to determine the battery's status data and the currently displayed first remaining charging time when the battery enters the charging end phase, wherein the status data includes at least: state of charge, state of health, and maximum voltage of individual cells; The lookup module is used to find the second remaining charging time corresponding to the status data in the preset relationship information; An estimation module is used to estimate a third remaining charging time required to fully charge the battery based on the second remaining charging time. The determining module is further configured to determine a unit time variable based on the third remaining charging time and the first remaining charging time, so as to control the display of the remaining charging time of the battery at the end of the charging stage based on the unit time variable and the first remaining charging time. Specifically, the determining module is used for: Determine whether the difference between the remaining charging time of the first charge and the remaining charging time of the third charge is greater than a first threshold. If so, the time change rate is determined to be a tenth of the ratio of the remaining time of the first charging to the remaining time of the third charging. If not, then determine whether the difference between the third remaining charging time and the first remaining charging time is greater than the second threshold. If so, the time change rate is determined to be the percentage of the remaining third charging time to the remaining first charging time; If not, then the rate of change of time is determined to be the reciprocal of the remaining time of the third charge; The unit time variable is determined based on the rate of change of time and the remaining time of the third charging.

5. An electronic device, characterized in that, Includes processor and memory; among which, The memory is used to store one or more computer instructions; The processor, coupled to the memory, is configured to execute the at least one or more computer instructions to implement the steps of the method according to any one of claims 1 to 3.

6. A vehicle, comprising a battery, characterized in that, It also includes the electronic device as described in claim 5.

7. A computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, causes the processor to perform the steps of the method according to any one of claims 1 to 3.

8. A computer program product comprising a computer program / instructions that, when executed by a processor, cause the processor to perform the steps of the method according to any one of claims 1 to 3.

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