WO2024120501A1 - Battery remaining charging time computing method and apparatus, electronic device, and storage medium - Google Patents

Abstract

A battery remaining charging time computing method and apparatus, an electronic device, and a storage medium. The computing method comprises: acquiring a current battery temperature value and a current battery state-of-charge value; determining a computed charging current value and a temperature rise rate on the basis of a computed battery temperature value, a computed battery state-of-charge value and a preset correspondence; updating the computed battery temperature value according to a step size on the basis of the temperature rise rate, and re-determining a computed charging current value and a temperature rise rate; and determining a battery remaining charging time.

Description

Method, device, electronic device and storage medium for calculating remaining battery charging time

This application claims priority to the Chinese patent application filed with the China Patent Office on December 7, 2022, with application number 202211565327.4. The entire contents of the above application are incorporated by reference into this application.

Technical Field

The embodiments of the present application relate to the field of battery charging technology, and in particular to a method, device, electronic device and storage medium for calculating the remaining charging time of a battery.

Background technique

With the rapid development of electric vehicle technology, electric vehicle charging has become a common phenomenon. The display of the remaining charging time during the charging process is particularly important to users. Accurately calculating and displaying the remaining charging time can provide users with accurate information, allowing users to arrange and plan their time reasonably.

In the related art, the remaining charging time is mostly calculated using the remaining charging capacity and the charging current output by the charging pile. In addition, considering the impact of charging loss, the calculated remaining charging time is multiplied by a fixed proportional coefficient as the remaining charging time that is finally displayed. However, during the charging process, the battery state of charge (SOC) will continue to change. As the SOC increases, the charging current will decrease. Therefore, the remaining charging time calculation method in the prior art will cause a deviation between the displayed remaining charging time and the actual remaining charging time required.

SUMMARY OF THE INVENTION

The present application provides a method, device, electronic device and storage medium for calculating the remaining charging time of a battery, so as to accurately calculate and adjust the remaining charging time of the battery during the charging process, thereby improving the accuracy and reliability of the remaining charging time.

To achieve this goal, this application adopts the following technical solutions:

According to one aspect of the present application, a method for calculating remaining battery charging time is provided, comprising:

Acquire a current battery temperature value and a current battery state of charge value; wherein the current battery temperature value is assigned to an initial value of a battery temperature calculation value, and the current battery state of charge value is assigned to an initial value of a battery state of charge calculation value;

If the battery state of charge calculated value is less than the target battery state of charge value, determining the charging current calculated value and the temperature rise rate according to the battery temperature calculated value, the battery state of charge calculated value and a preset corresponding relationship; wherein the initial value of the battery temperature calculated value and the initial value of the battery state of charge calculated value are used to first determine the charging current calculated value and the temperature rise rate;

When the temperature rise rate does not meet the set condition, the battery state of charge calculated value is cumulatively determined according to the charging current calculated value and the temperature rise rate, and the theoretical remaining charging time is cumulatively determined according to the temperature rise rate; the battery state of charge calculated value is compared with the target battery state of charge value, and according to the comparison result, the battery temperature calculated value is updated according to the temperature rise rate in a step size, and the charging current calculated value and the temperature rise rate are re-determined;

When the calculated battery state of charge value is greater than or equal to the target battery state of charge value, the remaining battery charging time is determined according to the theoretical remaining charging time.

According to another aspect of the present application, a device for calculating remaining battery charging time is provided, comprising:

An initial value acquisition module, used to acquire a current battery temperature value and a current battery state of charge value; wherein the current battery temperature value is assigned to an initial value of a battery temperature calculation value, and the current battery state of charge value is assigned to an initial value of a battery state of charge calculation value;

a parameter updating module, configured to determine a charging current calculation value and a temperature rise rate according to the battery temperature calculation value, the battery state of charge calculation value and a preset corresponding relationship if the battery state of charge calculation value is less than a target battery state of charge value; wherein the initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value are used to determine the charging current calculation value and the temperature rise rate for the first time;

a calculation module, configured to, when the temperature rise rate does not meet the set condition, cumulatively determine the battery state of charge calculation value according to the charging current calculation value and the temperature rise rate, and cumulatively determine the theoretical remaining charging time according to the temperature rise rate; compare the battery state of charge calculation value with the target battery state of charge value, and update the battery temperature calculation value according to the temperature rise rate in a step size according to the comparison result, and re-determine the charging current calculation value and the temperature rise rate;

The result determination module is used to determine the remaining battery charging time according to the theoretical remaining charging time when the calculated battery state of charge value is greater than or equal to the target battery state of charge value.

According to another aspect of the present application, an electronic device is also provided, including:

one or more processors;

a storage device for storing one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors implement the method for calculating the remaining battery charging time as described in the first aspect.

According to another aspect of the present application, a storage medium containing computer executable instructions is also provided. When the computer executable instructions are executed by a computer processor, they are used to execute the battery remaining charging time calculation method as described in the first aspect.

It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description.

Beneficial Effects

Beneficial effects of this application:

The battery remaining charging time calculation method provided in the embodiment of the present application obtains the current battery temperature value and the current battery state of charge value as the initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value in the iterative calculation process, respectively. If it is determined that the battery state of charge calculation value is less than the target battery state of charge value, the charging current calculation value and the temperature rise rate are determined according to the battery temperature calculation value, the battery state of charge calculation value and the preset corresponding relationship. The initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value are used to determine the charging current calculation value and the temperature rise rate for the first time. When the temperature rise rate does not meet the set conditions, the battery state of charge calculation value is determined according to the cumulative addition of the charging current calculation value and the temperature rise rate, the theoretical remaining charging time is determined according to the cumulative addition of the temperature rise rate, and the size relationship between the battery state of charge calculation value and the target battery state of charge value is determined. If the battery state of charge calculation value is still less than the target battery state of charge value, the battery temperature calculation value is updated according to the temperature rise rate, and the charging current calculation value and the temperature rise rate are re-determined until the battery state of charge calculation value is greater than or equal to the target battery state of charge value. By adopting the battery remaining charging time calculation method provided in the embodiment of the present application, the battery remaining charging time can be accurately calculated, the accuracy and reliability of the displayed remaining charging time can be improved, and it is convenient for users to arrange and plan their time reasonably.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic flow chart of a method for calculating the remaining charging time of a battery according to an embodiment of the present application;

FIG2 is a flow chart of another method for calculating the remaining battery charging time according to an embodiment of the present application;

FIG3 is a flow chart of another method for calculating the remaining battery charging time according to an embodiment of the present application;

FIG4 is a schematic diagram of a specific flow chart of step S310 in another method for calculating the remaining battery charging time according to an embodiment of the present application;

5 is a schematic diagram of a flow chart of another method for calculating the remaining battery charging time according to an embodiment of the present application;

6 is a flow chart of another method for calculating the remaining battery charging time according to an embodiment of the present application;

7 is a schematic diagram of the structure of a device for calculating the remaining charging time of a battery according to an embodiment of the present application;

FIG8 is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present application.

Embodiments of the present invention

In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

The present application embodiment provides a method for calculating the remaining charging time of a battery. FIG1 is a flow chart of a method for calculating the remaining charging time of a battery provided in the present application embodiment. The present embodiment can be applied to the case of calculating the remaining charging time of an electric vehicle. The method can be executed by a battery remaining charging time calculation device, and specifically includes the following steps:

S110, obtaining a current battery temperature value and a current battery state of charge value; wherein the current battery temperature value is assigned to an initial value of a battery temperature calculation value, and the current battery state of charge value is assigned to an initial value of a battery state of charge calculation value.

Specifically, the current battery state of charge value is the battery state of charge value displayed by the vehicle instrument, and the current battery temperature value is the temperature of the current battery module, which can be obtained by the temperature sensor set in the battery module. The battery temperature calculation value is the battery temperature parameter used in the calculation of the remaining charging time, and the battery state of charge calculation value is the battery state of charge parameter used in the calculation of the remaining charging time.

When obtaining the current battery temperature value, it is necessary to collect multiple temperature points of the battery module and compare the multiple temperatures. Since the optimal charging temperature range of the battery module is 15-45°C, that is, when the temperature of the battery module is within the optimal charging temperature range, the charging current is large; when the temperature of the battery module is outside the optimal temperature range, the charging current is small. Therefore, in order to ensure that the battery is charged with a larger charging current, when determining the current battery temperature value of the battery module, the temperature point that limits the charging current size is used as the current battery temperature value. For example, if the lowest temperature of the battery module is greater than or equal to 20°C, the maximum temperature among the multiple temperature points is determined as the current battery temperature value; if the lowest temperature of the battery module is less than 20°C, the minimum temperature among the multiple temperature points is determined as the current battery temperature value.

When calculating the remaining battery charging time, the current battery temperature value is obtained as the initial value of the battery temperature calculation value in the calculation process, and the current battery state of charge value is obtained as the initial value of the battery state of charge calculation value in the calculation process, so as to perform subsequent calculations and determine the remaining battery charging time of the remaining charging process.

S120. If the calculated battery state of charge value is less than the target battery state of charge value, determine the calculated charging current value and the temperature rise rate according to the calculated battery temperature value, the calculated battery state of charge value and a preset corresponding relationship; wherein the initial value of the calculated battery temperature value and the initial value of the calculated battery state of charge value are used to determine the calculated charging current value and the temperature rise rate for the first time.

Specifically, the target battery state of charge value is a battery state of charge value actually required by a user, can be set by the user, and can be changed by the user during the entire charging process of the vehicle.

During the calculation of the remaining charging time, if it is determined that the calculated battery state of charge value is less than the target battery state of charge value, it indicates that the remaining charging time calculated at this time is insufficient for the battery state of charge value to reach the target battery state of charge value. Therefore, the initial value of the battery temperature calculation value assigned by the current battery temperature value and the initial value of the battery state of charge calculation value assigned by the current battery state of charge value are used to perform the first calculation to obtain the battery state of charge calculation value. If the calculated battery state of charge value is less than the target battery state of charge value, it is necessary to iterate the remaining charging time multiple times until the battery state of charge calculation value is greater than or equal to the target battery state of charge value, and then the iterative calculation is stopped.

The calculated charging current value is the charging current value used in the calculation process of the remaining charging time. According to the initial value of the calculated battery temperature value, the charging current value is determined for the first time by querying the corresponding preset correspondence. The charging current value determined for the first time is compared with the maximum charging current value output by the charging pile, and a relatively small charging current is selected as the calculated charging current value. Among them, the maximum charging current value output by the charging pile can be obtained through a CML message or an AC gun message. The CML message includes information on the maximum output voltage, the minimum output voltage, the maximum output current, and the minimum output current, which are the standard values of voltage or current specified by the national standard. The voltage or current information included in the AC gun message is the voltage or current output value set by the model or manufacturer of different charging piles.

After the calculated value of the charging current is determined, the current temperature rise rate of the battery can be determined according to the corresponding preset corresponding relationship, wherein the temperature rise rate represents the rate of change of the battery temperature.

S130. When the temperature rise rate does not meet the set conditions, the battery state of charge calculation value is determined by accumulating the charging current calculation value and the temperature rise rate, and the theoretical remaining charging time is determined by accumulating the temperature rise rate; the battery state of charge calculation value is compared with the target battery state of charge value, and based on the comparison result, the battery temperature calculation value is updated according to the step size according to the temperature rise rate, and the charging current calculation value and the temperature rise rate are re-determined.

Specifically, the setting condition of the temperature rise rate is the condition that the battery temperature does not change, and the theoretical remaining charging time is the remaining charging time obtained after one calculation.

When the temperature rise rate does not meet the set conditions, the battery temperature will change during the charging process, and the charging current will also change. Therefore, the battery state of charge calculation value is obtained by accumulating the charging current calculation value and the temperature rise rate, and the theoretical remaining charging time calculated this time is determined according to the current temperature rise rate, and the battery state of charge calculation value is compared with the target battery state of charge value to determine the size relationship between the battery state of charge calculation value and the target battery state of charge value.

If the calculated battery state of charge value is still less than the target battery state of charge value, the step value is accumulated based on the current calculated battery temperature value according to the temperature rise rate to obtain the calculated battery temperature value for the next iteration process, and execution is started again from step S120 to redetermine the calculated charging current value and the temperature rise rate, thereby determining the calculated battery state of charge value and the theoretical remaining charging time.

S140: When the calculated battery state of charge value is greater than or equal to the target battery state of charge value, determine the remaining battery charging time according to the theoretical remaining charging time.

Specifically, when the battery state of charge calculation value is greater than or equal to the target battery state of charge value after multiple iterations, the theoretical remaining charging time obtained by the last calculation is determined as the remaining battery charging time and displayed on the vehicle instrument to inform the user.

The method for calculating the remaining charging time of a battery provided in this embodiment obtains the current battery temperature value and the current battery state of charge value as the initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value in the iterative calculation process, respectively. If it is determined that the battery state of charge calculation value is less than the target battery state of charge value, the charging current calculation value and the temperature rise rate are determined according to the battery temperature calculation value, the battery state of charge calculation value and the preset corresponding relationship. The initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value are used to determine the charging current calculation value and the temperature rise rate for the first time. When the temperature rise rate does not meet the set conditions, the battery state of charge calculation value is determined according to the cumulative addition of the charging current calculation value and the temperature rise rate, the theoretical remaining charging time is determined according to the cumulative addition of the temperature rise rate, and the size relationship between the battery state of charge calculation value and the target battery state of charge value is determined. If the battery state of charge calculation value is still less than the target battery state of charge value, the battery temperature calculation value is updated according to the temperature rise rate, and the charging current calculation value and the temperature rise rate are re-determined until the battery state of charge calculation value is greater than or equal to the target battery state of charge value. By using the battery remaining charging time calculation method provided in this embodiment, the battery remaining charging time can be accurately calculated, the accuracy and reliability of the displayed remaining charging time can be improved, and it is convenient for users to arrange and plan their time reasonably.

Optionally, FIG2 is a flow chart of another method for calculating the remaining battery charging time provided in an embodiment of the present application. Based on the above embodiment, as shown in FIG2, the method for calculating the remaining battery charging time includes:

S210: Obtain a current battery temperature value and a current battery state of charge value.

S220. If the calculated battery state of charge value is less than the target battery state of charge value, determine the calculated charging current value and the temperature rise rate according to the calculated battery temperature value, the calculated battery state of charge value and a preset corresponding relationship; wherein the initial value of the calculated battery temperature value and the initial value of the calculated battery state of charge value are used to determine the calculated charging current value and the temperature rise rate for the first time.

S230: When the temperature rise rate meets the set conditions, the theoretical remaining charging time is determined according to the target battery state of charge value, the battery state of charge calculation value and the charging current calculation value, and the battery state of charge calculation value is assigned as the target battery state of charge value.

Specifically, if the temperature rise rate meets the set conditions, indicating that the battery temperature does not change, the charging current does not change. Therefore, according to the target battery state of charge value, the battery state of charge calculated value and the charging current calculated value, the following calculation formula can be used to directly calculate the theoretical remaining charging time, which can be expressed as:

Theoretical remaining charging time = battery capacity × (target battery state of charge value - battery state of charge calculated value) / charging current calculated value

The battery capacity indicates the total capacity of the battery when it is fully charged. The battery capacity parameters can be obtained from the battery nameplate.

S240. When the temperature rise rate does not meet the set conditions, the battery state of charge calculation value is determined by accumulating the charging current calculation value and the temperature rise rate, and the theoretical remaining charging time is determined by accumulating the temperature rise rate; the battery state of charge calculation value is compared with the target battery state of charge value, and based on the comparison result, the battery temperature calculation value is updated according to the step size according to the temperature rise rate, and the charging current calculation value and the temperature rise rate are re-determined.

S250: When the calculated battery state of charge value is greater than or equal to the target battery state of charge value, determine the remaining battery charging time according to the theoretical remaining charging time.

Optionally, FIG3 is a flow chart of another method for calculating the remaining battery charging time provided in an embodiment of the present application. Based on the above embodiments, as shown in FIG3, the method for calculating the remaining battery charging time includes:

S310: Determine whether to update the remaining battery charging time according to at least one of the current battery temperature value, the current battery state of charge value, and the target battery state of charge value.

Specifically, after the last update of the remaining battery charging time, if the current battery temperature value, the current battery state of charge value, and the target battery state of charge value remain unchanged, the remaining battery charging time displayed in the last update still has a high accuracy. If at least one of the current battery temperature value, the current battery state of charge value, and the target battery state of charge value changes, the accuracy of the remaining battery charging time displayed at this time is low, and the remaining battery charging time needs to be recalculated and updated.

S320: Obtain a current battery temperature value and a current battery state of charge value.

S330. If the calculated battery state of charge value is less than the target battery state of charge value, determine the calculated charging current value and the temperature rise rate according to the calculated battery temperature value, the calculated battery state of charge value and a preset corresponding relationship; wherein the initial value of the calculated battery temperature value and the initial value of the calculated battery state of charge value are used to determine the calculated charging current value and the temperature rise rate for the first time.

S340: When the temperature rise rate meets the set conditions, the theoretical remaining charging time is determined according to the target battery state of charge value, the battery state of charge calculation value and the charging current calculation value, and the battery state of charge calculation value is assigned as the target battery state of charge value.

S350. When the temperature rise rate does not meet the set conditions, the battery state of charge calculation value is determined by accumulating the charging current calculation value and the temperature rise rate, and the theoretical remaining charging time is determined by accumulating the temperature rise rate; the battery state of charge calculation value is compared with the target battery state of charge value, and based on the comparison result, the battery temperature calculation value is updated in steps according to the temperature rise rate, and the charging current calculation value and the temperature rise rate are re-determined.

S360: When the calculated battery state of charge value is greater than or equal to the target battery state of charge value, determine the remaining battery charging time according to the theoretical remaining charging time.

Optionally, FIG4 is a specific flow chart of step S310 in another method for calculating the remaining battery charging time provided in an embodiment of the present application. Based on the above embodiments, as shown in FIG4, step S310 includes:

S3101, detecting and determining whether the current battery temperature value, the current battery state of charge value, and the target battery state of charge value have changed in a preset time period.

Specifically, after the remaining battery charging time displayed on the vehicle instrument is updated, the current battery temperature value, the current battery state of charge value, and the target battery state of charge value are detected at a preset time period, and the detection result is judged to determine whether the current battery temperature value, the current battery state of charge value, and the target battery state of charge value have changed. Exemplarily, the preset time period can be 1 second, which is not limited here.

S3102: If at least one of the current battery temperature value, the current battery state of charge value, and the target battery state of charge value changes, a judgment result is generated, and the remaining battery charging time is updated according to the judgment result.

Specifically, during the vehicle battery charging process, the current battery state of charge value gradually increases, and the current battery temperature value also changes. When the current battery temperature value or the current battery state of charge value changes at a preset time period, it is determined that the accuracy of the remaining charging time displayed by the instrument at this time is low, a judgment result is generated, and the remaining battery charging time is re-updated.

In addition, the target battery state of charge value can be set by the user according to the actual situation. Therefore, during the vehicle battery charging process, the target battery state of charge value will also change. When a change in the target battery state of charge value is detected, a judgment result is generated. Similarly, according to the judgment result, the remaining battery charging time needs to be recalculated and the updated remaining battery charging time is displayed on the instrument.

Optionally, based on the above embodiments, updating the calculated battery temperature value in steps according to the temperature rise rate includes:

When the temperature rise rate is greater than 0, the step size is 1°C;

When the temperature rise rate is less than 0, the step size is -1°C.

Specifically, after the theoretical remaining charging time is calculated in this iteration, if it is determined that the calculated value of the battery state of charge is still less than the target battery state of charge value, it is necessary to continue the next iteration. At this time, it is necessary to update the battery temperature calculation value parameters in the next iteration according to a certain step size based on the temperature rise rate used in this iteration. Exemplarily, if the temperature rise rate used in this iteration is greater than 0, the battery temperature calculation value used in the next iteration is accumulated by 1°C, that is, it increases by 1°C; if the temperature rise rate used in this iteration is less than 0, the battery temperature calculation value used in the next iteration is accumulated by -1°C, that is, it decreases by 1°C. Table 1 is a temperature rise rate table provided in this embodiment, as shown in Table 1.

Table 1 Temperature rise rate table

For example, the calculated value of the battery temperature in this iteration is 22°C, and the calculated value of the charging current is 1.2C. According to Table 1 above, the temperature rise rate in this iteration is 95s/°C. Since the temperature rise rate is greater than 0, the calculated value of the battery temperature in the next iteration is 23°C.

It should be noted that, as can be seen from Table 1, when the temperature rise rate is 1800, it means that the temperature rise rate meets the set conditions and the temperature will not change; when the temperature rise rate is not equal to 1800, it means that the temperature rise rate does not meet the set conditions. Among them, 1800 is only a sign that the temperature rise rate meets the set conditions and has no practical significance. Other numbers can also be set as the setting conditions of the temperature rise rate, for example: 3600.

Optionally, FIG5 is a flowchart of another method for calculating the remaining battery charging time provided by an embodiment of the present application. Based on the above embodiments, the preset corresponding relationship includes: a first preset relationship table and a second preset relationship table; as shown in FIG5, the charging current calculation value and the temperature rise rate are determined according to the battery temperature calculation value, the battery state of charge calculation value and the preset corresponding relationship, including:

S1201. Determine a charging current calculation value according to a battery temperature calculation value, a battery state of charge calculation value, and a first preset relationship table.

Specifically, the first preset relationship table is a two-dimensional table representing the relationship between the battery temperature calculation value, the battery state of charge calculation value and the charging current calculation value. Once the battery temperature calculation value and the battery state of charge calculation value are determined, a charging current calculation value can be determined correspondingly through the first preset relationship table.

S1202: Determine a temperature rise rate according to a calculated value of battery temperature, a calculated value of charging current, and a second preset relationship table.

Specifically, the second preset relationship table is a two-dimensional table representing the relationship between the battery temperature calculation value, the charging current calculation value and the temperature rise rate. When the battery temperature calculation value is determined, a corresponding temperature rise rate can be determined according to the charging current calculation value determined in step S1201 and the second preset relationship table.

Optionally, FIG6 is a flowchart of another method for calculating the remaining battery charging time provided in an embodiment of the present application. Based on the above embodiments, as shown in FIG6 , determining the remaining battery charging time according to the theoretical remaining charging time includes:

S1401. Determine a time curve drop coefficient according to the last updated remaining battery charging time and the theoretical remaining charging time determined by this accumulation.

Specifically, the time curve descent coefficient is a coefficient for processing the last updated battery remaining charging time to smoothly display the theoretical remaining charging time calculated this time. After calculating the theoretical remaining charging time, it is necessary to determine whether it is the first time to calculate the remaining charging time. If so, it means that the theoretical remaining charging time calculated this time is the remaining charging time at the beginning of the charging process, and the theoretical remaining charging time of this time is used as the displayed battery remaining charging time. The difference between the last displayed battery remaining charging time and the theoretical remaining charging time calculated by this iteration is subtracted, and the time curve descent coefficient is determined according to the difference.

S1402: Determine the remaining charging time of the battery according to the theoretical remaining charging time and the time curve drop coefficient.

Specifically, when a change is detected in at least one of the current battery temperature value, the current battery state of charge value and the target battery state of charge value during the charging process, the theoretical remaining charging time obtained by this iterative calculation is used as a benchmark, and the most recently displayed remaining battery charging time is processed according to the time curve descent coefficient to determine the remaining battery charging time. The most recently displayed remaining battery charging time changes smoothly to the remaining battery charging time, avoiding jumps in the remaining battery charging time during the display update process, thereby improving the user's viewing experience.

The present application also provides a battery remaining charging time calculation device. FIG7 is a structural diagram of a battery remaining charging time calculation device provided by the present application. As shown in FIG7, the battery remaining charging time calculation device 001 includes:

The initial value acquisition module 100 is used to acquire the current battery temperature value and the current battery state of charge value; wherein the current battery temperature value is assigned to the initial value of the battery temperature calculation value, and the current battery state of charge value is assigned to the initial value of the battery state of charge calculation value;

The parameter updating module 200 is used to determine the charging current calculation value and the temperature rise rate according to the battery temperature calculation value, the battery state of charge calculation value and the preset corresponding relationship if the battery state of charge calculation value is less than the target battery state of charge value; wherein the initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value are used to determine the charging current calculation value and the temperature rise rate for the first time;

The calculation module 300 is used to determine the battery state-of-charge calculation value according to the charging current calculation value and the temperature rise rate when the temperature rise rate does not meet the set conditions, and to determine the theoretical remaining charging time according to the temperature rise rate; compare the battery state-of-charge calculation value with the target battery state-of-charge value, and update the battery temperature calculation value according to the temperature rise rate according to the comparison result, and re-determine the charging current calculation value and the temperature rise rate;

The result determination module 400 is used to determine the remaining battery charging time according to the theoretical remaining charging time when the calculated battery state of charge value is greater than or equal to the target battery state of charge value.

The battery remaining charging time calculation device provided in the embodiment of the present application can execute the battery remaining charging time calculation method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method.

The present application also provides an electronic device. FIG8 is a schematic diagram of the structure of an electronic device provided by the present application. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and/or required herein.

As shown in FIG8 , the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11 in communication, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to the bus 14.

A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices through a computer network such as the Internet and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a method for calculating the remaining battery charging time.

In some embodiments, the battery remaining charging time calculation method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed on the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the battery remaining charging time calculation method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the battery remaining charging time calculation method in any other appropriate manner (e.g., by means of firmware).

Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: being implemented in one or more computer programs, which may be executed and/or interpret the battery remaining charge time calculation method on a programmable system including at least one programmable processor, which may be a dedicated or general programmable processor, which may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

In the context of the present application, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube), an LCD (liquid crystal display) monitor, or an OLED (organic light emitting diode display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document is not limited here.

The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of this application should be included in the protection scope of this application.

Claims (15)

1. A method for calculating the remaining charging time of a battery, comprising:

   Acquire a current battery temperature value and a current battery state of charge value; wherein the current battery temperature value is assigned to an initial value of a battery temperature calculation value, and the current battery state of charge value is assigned to an initial value of a battery state of charge calculation value;

   If the battery state of charge calculated value is less than the target battery state of charge value, determining the charging current calculated value and the temperature rise rate according to the battery temperature calculated value, the battery state of charge calculated value and a preset corresponding relationship; wherein the initial value of the battery temperature calculated value and the initial value of the battery state of charge calculated value are used to first determine the charging current calculated value and the temperature rise rate;

   When the temperature rise rate does not meet the set condition, the battery state of charge calculated value is cumulatively determined according to the charging current calculated value and the temperature rise rate, and the theoretical remaining charging time is cumulatively determined according to the temperature rise rate; the battery state of charge calculated value is compared with the target battery state of charge value, and according to the comparison result, the battery temperature calculated value is updated according to the temperature rise rate in a step size, and the charging current calculated value and the temperature rise rate are re-determined;

   When the calculated battery state of charge value is greater than or equal to the target battery state of charge value, the remaining battery charging time is determined according to the theoretical remaining charging time.
2. The method for calculating the remaining battery charging time according to claim 1, after determining the charging current calculation value and the temperature rise rate according to the battery temperature calculation value, the battery state of charge calculation value and a preset corresponding relationship if the battery state of charge calculation value is less than the target battery state of charge value, further comprising:

   When the temperature rise rate meets the set conditions, the theoretical remaining charging time is determined according to the target battery state of charge value, the battery state of charge calculation value and the charging current calculation value, and the battery state of charge calculation value is assigned to the target battery state of charge value.
3. The method for calculating the remaining battery charging time according to claim 2, before obtaining the current battery temperature value and the current battery state of charge value, further comprising:

   Whether to update the remaining battery charging time is determined according to at least one of the current battery temperature value, the current battery state of charge value, and the target battery state of charge value.
4. The method for calculating the remaining battery charging time according to claim 3, wherein the determining whether to update the remaining battery charging time according to at least one of the current battery temperature value, the current battery state of charge value, and the target battery state of charge value comprises:

   Detecting and determining whether the current battery temperature value, the current battery state of charge value, and the target battery state of charge value change in a preset time period;

   If at least one of the current battery temperature value, the current battery state of charge value, and the target battery state of charge value changes, a judgment result is generated, and the remaining battery charging time is updated according to the judgment result.
5. The method for calculating the remaining charging time of a battery according to any one of claims 1 to 4, wherein the updating of the calculated battery temperature value in steps according to the temperature rise rate comprises:

   When the temperature rise rate is greater than 0, the step length is 1°C;

   When the temperature rise rate is less than 0, the step length is -1°C.
6. The method for calculating the remaining battery charging time according to any one of claims 1 to 4, wherein the preset corresponding relationship comprises: a first preset relationship table and a second preset relationship table;

   The determining the charging current calculation value and the temperature rise rate according to the battery temperature calculation value, the battery state of charge calculation value and a preset corresponding relationship includes:

   Determining the charging current calculation value according to the battery temperature calculation value, the battery state of charge calculation value and the first preset relationship table;

   The temperature rise rate is determined according to the calculated value of the battery temperature, the calculated value of the charging current and the second preset relationship table.
7. The method for calculating the remaining battery charging time according to any one of claims 1 to 4, wherein determining the remaining battery charging time according to the theoretical remaining charging time comprises:

   Determine a time curve drop coefficient according to the last updated remaining battery charging time and the theoretical remaining charging time determined by this accumulation;

   The remaining charging time of the battery is determined according to the theoretical remaining charging time and the time curve drop coefficient.
8. A device for calculating the remaining charging time of a battery, comprising:

   An initial value acquisition module, used to acquire a current battery temperature value and a current battery state of charge value; wherein the current battery temperature value is assigned to an initial value of a battery temperature calculation value, and the current battery state of charge value is assigned to an initial value of a battery state of charge calculation value;

   a parameter updating module, configured to determine a charging current calculation value and a temperature rise rate according to the battery temperature calculation value, the battery state of charge calculation value and a preset corresponding relationship if the battery state of charge calculation value is less than a target battery state of charge value; wherein the initial value of the battery temperature calculation value and the initial value of the battery state of charge calculation value are used to determine the charging current calculation value and the temperature rise rate for the first time;

   a calculation module, configured to, when the temperature rise rate does not meet the set condition, cumulatively determine the battery state of charge calculation value according to the charging current calculation value and the temperature rise rate, and cumulatively determine the theoretical remaining charging time according to the temperature rise rate; compare the battery state of charge calculation value with the target battery state of charge value, and update the battery temperature calculation value according to the temperature rise rate in a step size according to the comparison result, and re-determine the charging current calculation value and the temperature rise rate;

   The result determination module is used to determine the remaining battery charging time according to the theoretical remaining charging time when the calculated battery state of charge value is greater than or equal to the target battery state of charge value.
9. The battery remaining charging time calculation device according to claim 8, further comprising:

   The first determination module is used to determine the theoretical remaining charging time according to the target battery state of charge value, the battery state of charge calculation value and the charging current calculation value when the temperature rise rate meets the set conditions, and assign the battery state of charge calculation value to the target battery state of charge value.
10. The battery remaining charging time calculation device according to claim 9, further comprising:

    The judgment module is used to judge whether to update the remaining charging time of the battery according to at least one of the current battery temperature value, the current battery state of charge value and the target battery state of charge value.
11. According to the battery remaining charging time calculation device of claim 10, the judgment module comprises:

    a determination unit, configured to detect and determine whether the current battery temperature value, the current battery state of charge value, and the target battery state of charge value have changed in a preset time period;

    An updating unit is used to generate a judgment result if at least one of the current battery temperature value, the current battery state of charge value and the target battery state of charge value changes, and to update the remaining battery charging time according to the judgment result.
12. According to the battery remaining charging time calculation device according to any one of claims 8 to 11, the calculation module comprises:

    A first determining unit, configured to set the step length to 1°C when the temperature rise rate is greater than 0;

    The second determining unit is used to determine that when the temperature rise rate is less than 0, the step length is -1°C.
13. According to the battery remaining charging time calculation device according to any one of claims 8 to 11, the preset corresponding relationship includes: a first preset relationship table and a second preset relationship table; the parameter updating module includes:

    a third determining unit, configured to determine the charging current calculated value according to the battery temperature calculated value, the battery state of charge calculated value and the first preset relationship table;

    A fourth determining unit is used to determine the temperature rise rate according to the calculated value of the battery temperature, the calculated value of the charging current and the second preset relationship table.
14. An electronic device, comprising:

    one or more processors;

    a storage device for storing one or more programs,

    When the one or more programs are executed by the one or more processors, the one or more processors implement the battery remaining charging time calculation method as described in any one of claims 1 to 7.
15. A storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute the battery remaining charging time calculation method according to any one of claims 1 to 7 when executed by a computer processor.