A battery remaining capacity correction method, device, equipment and medium

Abstract

The present invention discloses a battery remaining capacity correction method, device, equipment and medium, including: during the current working process of the battery, determining the current change in power of the battery in the current temperature segment; obtaining the historical change in power of the battery in the historical temperature segment; determining the equivalent change in power corresponding to the historical change in power in the current temperature segment; and determining the battery remaining capacity of the battery in the current temperature segment according to the current change in power, the equivalent change in power and the current total capacity of the battery corresponding to the current temperature segment. The present invention converts the historical change in power in the historical temperature segment into the equivalent change in power corresponding to the current temperature segment by equivalent conversion, so that the accuracy of the battery remaining power obtained by the solution is higher. Based on the more accurate battery remaining power, the vehicle can be better controlled, the driving performance of the vehicle can be improved, and the actual service life of the battery can be extended to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a method, device, equipment and medium for correcting the remaining capacity of a battery. Background Art

[0002] An electric vehicle is a vehicle that uses an onboard power source (also called a power battery or battery) as a power source and uses an electric motor to drive the wheels. Generally, the range of an electric vehicle is mainly determined by the remaining battery power. In the related art, the remaining battery power is mainly determined by calibrating the total battery capacity and consumption capacity under the working conditions. However, the capacity of the battery changes with the temperature, resulting in the accuracy of the remaining battery power determined by the related art is not high, which in turn has a negative impact on the vehicle's driving performance and battery life. Summary of the invention

[0003] The embodiments of the present application solve the technical problem of low accuracy of the remaining battery power determined in the prior art by providing a battery remaining capacity correction method, device, equipment and medium, thereby achieving the technical effect of improving the accuracy of the remaining battery power and reducing the negative impact on the vehicle's driving performance and battery life.

[0004] In a first aspect, the present application provides a method for correcting the remaining capacity of a battery, the method comprising:

[0005] During the current operation of the battery, determine the current change in power of the battery within the current temperature segment;

[0006] Obtain the historical change of battery power in historical temperature segments, where the historical temperature segments are all temperature segments before the current moment except the current temperature segment during the current working process;

[0007] Determine the equivalent change in electrical quantity corresponding to the historical change in electrical quantity in the current temperature segment;

[0008] The remaining capacity of the battery in the current temperature segment is determined according to the current change in power, the equivalent change in power, and the current total capacity of the battery corresponding to the current temperature segment.

[0009] Furthermore, determining the current change in battery power within the current temperature segment includes:

[0010] The current change in power of the battery within the current temperature segment is determined according to the first duration of the current temperature segment and the battery current parameter corresponding to the current temperature segment.

[0011] Furthermore, before obtaining the historical change in power of the battery in the historical temperature segments, the method further includes:

[0012] According to the second duration of the historical temperature segment and the battery current parameter corresponding to the historical temperature segment, the historical change in power of the battery within the historical temperature segment is determined, and the historical change in power is stored.

[0013] Furthermore, the equivalent change in electrical quantity corresponding to the historical change in electrical quantity in the current temperature segment is determined, including:

[0014] The equivalent change in power is determined based on the historical total capacity corresponding to the historical temperature segments, the historical change in power, and the current total capacity corresponding to the current temperature segment.

[0015] Furthermore, after determining the remaining battery capacity of the battery within the current temperature segment, the method further includes:

[0016] Determine whether the current work process is completed;

[0017] If the current working process is not finished, the current temperature segment is monitored, and when the current temperature segment is updated, the remaining battery capacity of the battery in the updated current temperature segment is determined for the updated current temperature segment.

[0018] Furthermore, the current working process includes any one of a current discharging process and a current charging process.

[0019] Furthermore, the temperature span of the current temperature segment is 1°C.

[0020] In a second aspect, the present application provides a battery remaining capacity correction device, the device comprising:

[0021] A current change power determination module is used to determine the current change power of the battery within the current temperature segment during the current working process of the battery;

[0022] A historical change power acquisition module is used to acquire the historical change power of the battery in historical temperature segments, where the historical temperature segments are all temperature segments before the current moment except the current temperature segment during the current working process;

[0023] An equivalent change electric quantity determination module is used to determine the equivalent change electric quantity corresponding to the historical change electric quantity in the current temperature segment;

[0024] The battery remaining capacity determination module is used to determine the battery remaining capacity of the battery in the current temperature segment according to the current change in power, the equivalent change in power and the current total capacity of the battery corresponding to the current temperature segment.

[0025] In a third aspect, the present application provides an electronic device, including:

[0026] processor;

[0027] a memory for storing processor-executable instructions;

[0028] The processor is configured to execute to implement a battery remaining capacity correction method as provided in the first aspect.

[0029] In a fourth aspect, the present application provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to implement a battery remaining capacity correction method as provided in the first aspect.

[0030] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0031] The embodiment of the present application converts the historical change in power within the historical temperature segment into the equivalent change in power corresponding to the current temperature segment, and then determines the cumulative change in power capacity of the battery according to the current change in power corresponding to the current temperature segment and the equivalent change in power, and finally determines the remaining power of the battery. It can be seen that the embodiment of the present application takes into account the impact of temperature on the cumulative change in power capacity, and converts the historical change in power within the historical temperature segment into the equivalent change in power corresponding to the current temperature segment by equivalent conversion, so that the accuracy of the remaining power of the battery finally solved is higher. Based on the more accurate remaining power of the battery, the vehicle can be better controlled and the driving performance of the vehicle can be improved. At the same time, the negative impact on the battery life is also reduced, and the actual service life of the battery is extended to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A flowchart of a battery remaining capacity correction method provided in this application;

[0034] Figure 2 A schematic diagram of the structure of a battery remaining capacity correction device provided in this application;

[0035] Figure 3 A schematic diagram of the structure of an electronic device provided in this application. DETAILED DESCRIPTION

[0036] The embodiment of the present application solves the technical problem of low accuracy of the remaining battery power determined in the prior art by providing a method for correcting the remaining battery capacity.

[0037] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0038] A method for correcting the remaining capacity of a battery comprises: determining the current change in power of the battery in a current temperature segment during the current operation of the battery; obtaining the historical change in power of the battery in historical temperature segments, wherein the historical temperature segments are all temperature segments other than the current temperature segment and before the current moment during the current operation; determining the equivalent change in power corresponding to the historical change in power in the current temperature segment; and determining the remaining capacity of the battery in the current temperature segment based on the current change in power, the equivalent change in power and the current total capacity of the battery corresponding to the current temperature segment.

[0039] This embodiment converts the historical change in power within the historical temperature segment into the equivalent change in power corresponding to the current temperature segment, and then determines the cumulative change in power capacity of the battery based on the current change in power and the equivalent change in power corresponding to the current temperature segment, and finally determines the remaining power of the battery. It can be seen that this embodiment takes into account the impact of temperature on the cumulative change in power capacity, and converts the historical change in power within the historical temperature segment into the equivalent change in power corresponding to the current temperature segment by equivalent conversion, so that the final solved remaining power of the battery is more accurate, and the vehicle can be better controlled based on the more accurate remaining power of the battery, improving the driving performance of the vehicle, while also reducing the negative impact on the battery life, and extending the actual service life of the battery to a certain extent.

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] Currently, it is impossible to directly measure the battery capacity, and it is generally estimated through algorithms. SOC (State Of Charge) is usually used to characterize the remaining available capacity of the battery (referred to as the remaining battery capacity). Similarly, this embodiment also determines the SOC through estimation.

[0043] As the temperature of the battery changes, its available capacity (i.e. the total capacity of the battery) also changes. Normally, within the calibrated operating temperature range, as the temperature rises, the total capacity tends to increase gradually. In the relevant algorithms, the total capacity corresponding to the low temperature minus the historical cumulative capacity consumed is used as the remaining capacity of the battery at low temperatures. The historical cumulative capacity consumed in the algorithm is the cumulative value at different temperatures, and does not consider the impact of temperature changes on the battery capacity and battery consumption, resulting in the final remaining battery capacity being inaccurate. The large deviation in the remaining battery capacity will affect the performance of the vehicle and the battery life.

[0044] In order to solve the above problems, this embodiment provides Figure 1 A method for correcting the remaining battery capacity is shown, and the method includes steps S11 to S14.

[0045] Step S11, during the current operation of the battery, determining the current change in power of the battery within the current temperature segment;

[0046] Step S12, obtaining the historical change of power of the battery in the historical temperature segments, where the historical temperature segments are all temperature segments before the current moment except the current temperature segment during the current working process;

[0047] Step S13, determining the equivalent change in electrical quantity corresponding to the historical change in electrical quantity in the current temperature segment;

[0048] Step S14, determining the remaining capacity of the battery in the current temperature segment according to the current change in power, the equivalent change in power and the current total capacity of the battery corresponding to the current temperature segment.

[0049] Regarding step S11, during the current operation of the battery, the current change in power of the battery within the current temperature segment is determined.

[0050] The working state of the battery includes the charging process and the discharging process. The current working process includes any one of the current discharging process and the current charging process. The working process refers to the continuous process from entering the process to exiting the process.

[0051] For example, if the current working process is a charging process, and the charging process starts at 15:00 on January 1, 2000, as long as the charging process is not suspended or terminated, it is considered that the current working process has been in progress since 15:00 on January 1, 2000. Similarly, if the current working process is a discharging process, and the charging process starts at 12:00 on January 2, 2000, as long as the discharging process is not suspended or terminated, it is considered that the current working process has been in progress since 12:00 on January 2, 2000.

[0052] Temperature segmentation refers to the temperature interval obtained by dividing the temperature into regions. The temperature span of the temperature segmentation can be set according to the actual situation. Different temperature segments can be set with different temperature spans or with the same temperature span. The temperature span can be an integer or a non-integer. This embodiment does not limit this.

[0053] For example, the battery starts discharging at 12:00 on January 2, 2000, and the temperature changes during the discharge process are shown in Table 1. When different temperature segments are set to different temperature spans, 22℃-25℃ can be used as a temperature segment with a temperature span of 4℃; 26℃-27℃ can be used as a temperature segment with a temperature span of 2℃; 28℃-30℃ can be used as a temperature segment with a temperature span of 3℃. When different temperature segments are set to the same temperature span, 22℃, 24℃, 25℃, 26℃, etc. can be used as a temperature segment with a temperature span of 1℃.

[0054] It should be noted that, taking 22°C as a temperature segment as an example, when the temperature accuracy is 0.1°C, then the temperature segment of 22°C should include 22.0°C-22.9°C, and when the temperature accuracy is 0.01°C, then the temperature segment of 22°C should include 22.00°C-22.99°C. Other temperature segments are similar to this, and this embodiment will not be described in detail. This embodiment will be described later by taking 1°C as the temperature span to determine the temperature segment as an example.

[0055] Table 1

[0056] time 12:00 12:01 12:02 12:03 12:04 12:05 12:10 12:15 12:40 … Temperature(℃) 22 25 26 28 29 30 30 30 30 …

[0057] When the battery is in the current working process, the temperature of the battery is collected at a preset collection frequency, the temperature segment the battery is currently in is determined based on the collected temperature, and the current cumulative change in power of the battery in the temperature segment (referred to as the current change in power) is determined for the current temperature segment. It should be noted that when the current working process is a charging process, the current change in power can also be called the current charging capacity; when the current working process is a discharging process, the current change in power can also be called the current discharging capacity.

[0058] Specifically, the current change in power within the current temperature segment may be determined based on the first duration of the current temperature segment and the battery current parameter corresponding to the current temperature segment.

[0059] The start time of the first duration is the time when the battery temperature jumps into the current temperature segment, and the end time of the first duration may be the current time or the time when the battery temperature jumps out of the current temperature segment.

[0060] The current change in battery capacity within the current temperature segment can be determined using formula (1):

[0061]

[0062] Among them, ΔQ is the current change in the current temperature segment, t n is the end time of the first duration, t n―1 is the starting time of the first duration, and I(t) is the current-time function of the battery in the current temperature segment.

[0063] Regarding step S12, the historical change of battery power in historical temperature segments is obtained, and the historical temperature segments are all temperature segments before the current moment except the current temperature segment during the current working process.

[0064] Table 2

[0065] time TM1 TM2 TM3 TM4 TM5 TM6 … Temperature range (℃) 25 24 23 25 26 27 …

[0066] In the current working process, all temperature segments before the current temperature segment are recorded as historical temperature segments. For example, TM1, TM2, TM3, TM4, TM5, and TM6 are listed in Table 2 in chronological order. Assuming that the current time is TM6 and the corresponding temperature segment is 27°C, all temperature segments before TM6 (including TM1, TM2, TM3, TM4, and TM5) are recorded as historical temperature segments.

[0067] The cumulative change in power corresponding to each temperature segment of the historical temperature segment can be directly obtained from the stored data. It should be noted that each temperature segment of the historical temperature segment has been used as the "current temperature segment" to calculate the cumulative change in power, that is, as the "current temperature segment" in steps S11-S14, the corresponding cumulative change in power is calculated. The cumulative change in power of each temperature segment in the historical temperature segment can be stored and can be directly obtained from the stored data when executing step S12.

[0068] Of course, the stored data is mainly obtained based on the second duration of the historical temperature segment and the battery current parameter corresponding to the historical temperature segment. After determining the historical change in power of the battery within the historical temperature segment, the historical change in power is stored.

[0069] It should be noted that, in actual implementation, step S11 and step S12 may be executed simultaneously, or step S12 may be executed first, or step S11 may be executed first, which will not be elaborated in this embodiment for comparison.

[0070] Regarding step S13, the equivalent change in electrical quantity corresponding to the historical change in electrical quantity in the current temperature segment is determined.

[0071] The historical change electric quantity is the change electric quantity corresponding to the historical temperature segment. When the historical temperature segment is different from the current temperature segment, the historical change electric quantity cannot be directly used as the historical change electric quantity of the current temperature segment and needs to be converted.

[0072] The specific conversion method is: determine the equivalent change in power based on the historical total capacity corresponding to the historical temperature segments, the historical change in power, and the current total capacity corresponding to the current temperature segment.

[0073] The historical total capacity, historical change in electricity, current total capacity and equivalent change in electricity have a relationship as shown in formula (2).

[0074]

[0075] Among them, ΔQ l is the historical change in electricity, Q(T) l is the historical total capacity, Q(T) is the current total capacity, and ΔQ′ is the equivalent change in electricity.

[0076] According to the above formula (2), the transformed formula (3) can be obtained, that is, the formula for solving the equivalent change in electrical quantity.

[0077]

[0078] It should be noted that, in actual implementation, the execution order of step S13 can be adaptively adjusted according to the execution order of step S12, which will not be elaborated in this embodiment.

[0079] Regarding step S14, the remaining capacity of the battery in the current temperature segment is determined according to the current change in power, the equivalent change in power and the current total capacity of the battery corresponding to the current temperature segment.

[0080] The accumulated capacity change of the battery can be determined based on the current capacity change and the equivalent capacity change. The remaining capacity of the battery in the current temperature segment can be calculated based on the accumulated capacity change and the current total capacity according to formula (4).

[0081]

[0082] In summary, this embodiment converts the historical change in power within the historical temperature segment into the equivalent change in power corresponding to the current temperature segment, and then determines the cumulative change in capacity of the battery based on the current change in power and the equivalent change in power corresponding to the current temperature segment, and finally determines the remaining power of the battery. It can be seen that this embodiment takes into account the impact of temperature on the cumulative change in capacity, and converts the historical change in power within the historical temperature segment into the equivalent change in power corresponding to the current temperature segment by equivalent conversion, so that the final solved remaining power of the battery is more accurate, and the vehicle can be better controlled based on the more accurate remaining battery power, improving the driving performance of the vehicle, while also reducing the negative impact on the battery life, and extending the actual service life of the battery to a certain extent.

[0083] That is to say, this embodiment uses a method of dynamically correcting the remaining available capacity according to the temperature, stores the charging or discharging capacity at different historical temperatures during a charging or discharging process, maps it to the charging or discharging amount at the current temperature through the relationship between the available capacities at different temperatures, calculates the SOC at the current temperature after accumulation, and then associates the historical accumulated consumption capacity with the consumption capacity at the current temperature segment, which can more accurately estimate the accuracy of the SOC after the temperature change.

[0084] After determining the remaining battery capacity of the battery within the current temperature segment, the method further includes steps S21 and S22.

[0085] Step S21, determining whether the current working process is finished;

[0086] Step S22, if the current working process is not finished, monitor the current temperature segment, and when the current temperature segment is updated, determine the remaining battery capacity of the battery in the updated current temperature segment for the updated current temperature segment.

[0087] After determining the remaining battery capacity of the current temperature segment, it is determined whether the current working process is finished. If finished, the calculation process of the remaining battery capacity can be terminated. If not finished, the current temperature segment is monitored. When the current temperature segment is updated, steps S11 to S14 are executed for the updated current temperature segment to determine the remaining battery capacity in the updated current temperature segment.

[0088] That is to say, the solution provided in this embodiment is a cycle solution. In order to more clearly illustrate the solution of this embodiment, a specific example is now provided, which is as follows:

[0089] Table 3

[0090] time TM1 TM2 TM3 TM4 … Temperature range (℃) 25 26 27 28 …

[0091] As shown in Table 3, TM1, TM2, TM3, and TM4 are arranged in chronological order.

[0092] [The current temperature segment is 25℃]

[0093] If the current temperature segment is 25°C, the corresponding start time of the duration is TM1, the end time is TM2, and the corresponding current-time function is I(t1). Then, according to the above formula (1), the current change in electrical quantity ΔQ(1) corresponding to the range of 25°C can be obtained. The corresponding formula can be found in formula (5).

[0094]

[0095] Since TM1 is the start time of the current working process, there is no historical temperature segment before TM1 (or the corresponding historical change power is 0), that is, the equivalent change power is 0, then the battery remaining power SOC (25°C) corresponding to the 25°C temperature segment can be obtained according to the above formula (4) to obtain formula (6).

[0096]

[0097] Among them, Q(T1) is the current total capacity corresponding to the 25°C temperature segment.

[0098] [The current temperature segment is 26℃]

[0099] If the current temperature segment is 26°C, the corresponding start time of the duration is TM2, the end time is TM3, and the corresponding current time function is I(t2). Then, according to the above formula (1), the current change in electrical quantity ΔQ(2) corresponding to the range of 26°C can be obtained. The corresponding formula can be found in formula (7).

[0100]

[0101] The historical temperature segment before TM2 is 25°C, the historical total capacity corresponding to the 25°C temperature segment is Q(T1), and the current total capacity corresponding to 26°C is Q(T2). Then, according to the above formula (3), the equivalent change in electrical quantity ΔQ(2)′ corresponding to ΔQ(1) at 26°C can be calculated. For details, see formula (8).

[0102]

[0103] Then the remaining battery capacity SOC(26°C) corresponding to the 26°C temperature segment can be obtained by formula (9) based on the above formula (4).

[0104]

[0105] [The current temperature segment is 27℃]

[0106] If the current temperature segment is 27°C, the corresponding start time of the duration is TM3, the end time is TM4, and the corresponding current time function is I(t3). Then, according to the above formula (1), the current change in electrical quantity ΔQ(3) corresponding to the range of 27°C can be obtained. The corresponding formula can be found in formula (10).

[0107]

[0108] The historical temperature segments before TM3 are 25°C and 26°C, the historical total capacity corresponding to the 26°C temperature segment is Q(T2), and the current total capacity corresponding to 27°C is Q(T3). The 27°C temperature segment is the current temperature segment. According to step S12, the historical temperature segment should include the 25°C temperature segment and the 26°C temperature segment. Then the corresponding historical change in power is the sum of the change in power of the 25°C temperature segment and the 26°C temperature segment, that is, ΔQ(2)′+ΔQ(2) (see formula (9)).

[0109] According to the above formula (3), the equivalent change in electrical quantity ΔQ(3)′ corresponding to ΔQ(2)′+ΔQ(2) at 27°C is calculated. For details, see formula (11).

[0110]

[0111] Then the remaining battery capacity SOC(27°C) corresponding to the 27°C temperature segment can be obtained by formula (12) or formula (13) according to the above formula (4).

[0112]

[0113]

[0114] [The current temperature segment is 28℃]

[0115] If the current temperature segment is 28°C, the corresponding start time of the duration is TM4, the end time is TM5, and the corresponding current time function is I(t4). Then, according to the above formula (1), the current change in electrical quantity ΔQ(4) corresponding to the range of 28°C can be obtained. The corresponding formula can be found in formula (14).

[0116]

[0117] The historical temperature segments that existed before TM4 were 25°C, 26°C, and 27°C, the historical total capacity corresponding to the 27°C temperature segment was Q(T3), and the current total capacity corresponding to 28°C was Q(T4). The 28°C temperature segment is the current temperature segment. According to step S12, the historical temperature segments should include the 25°C temperature segment, the 26°C temperature segment, and the 27°C temperature segment. Then the corresponding historical change in power is the sum of the change in power of the 25°C temperature segment, the 26°C temperature segment, and the 27°C temperature segment, that is, ΔQ(3)′+ΔQ(3) (see formula (12)).

[0118] According to the above formula (3), the equivalent change in electrical quantity ΔQ(4)′ corresponding to ΔQ(3)′+ΔQ(3) at 28°C is calculated. For details, see formula (15).

[0119]

[0120] Then the remaining battery capacity SOC(28°C) corresponding to the 28°C temperature segment can be obtained by formula (16) or formula (17) based on the above formula (4).

[0121]

[0122]

[0123] Based on the same inventive concept, this embodiment provides Figure 2 A battery remaining capacity correction device is shown, the device comprising:

[0124] The current change power determination module 21 is used to determine the current change power of the battery in the current temperature segment during the current operation of the battery;

[0125] A historical change power acquisition module 22 is used to acquire the historical change power of the battery in a historical temperature segment, where the historical temperature segment is all temperature segments except the current temperature segment and before the current moment in the current working process;

[0126] The equivalent change electric quantity determination module 23 is used to determine the equivalent change electric quantity corresponding to the historical change electric quantity in the current temperature segment;

[0127] The battery remaining capacity determination module 24 is used to determine the battery remaining capacity of the battery in the current temperature segment according to the current change in power, the equivalent change in power and the current total capacity of the battery corresponding to the current temperature segment.

[0128] Furthermore, the current change power determination module 21 includes:

[0129] The current change power determination submodule is used to determine the current change power of the battery in the current temperature segment according to the first duration of the current temperature segment and the battery current parameter corresponding to the current temperature segment.

[0130] Furthermore, the device also includes:

[0131] The historical change power determination module is used to determine the historical change power of the battery in the historical temperature segment according to the second duration of the historical temperature segment and the battery current parameter corresponding to the historical temperature segment before obtaining the historical change power of the battery in the historical temperature segment, and store the historical change power.

[0132] Furthermore, the equivalent change power determination module 23 includes:

[0133] The equivalent change power determination submodule is used to determine the equivalent change power according to the historical total capacity corresponding to the historical temperature segment, the historical change power and the current total capacity corresponding to the current temperature segment.

[0134] Furthermore, the device also includes:

[0135] A judgment module, used to judge whether the current working process is finished after determining the remaining battery capacity of the battery in the current temperature segment;

[0136] The updating module is used to monitor the current temperature segment if the current working process has not ended, and when the current temperature segment is updated, determine the remaining battery capacity of the battery in the updated current temperature segment for the updated current temperature segment.

[0137] Furthermore, the current working process includes any one of a current discharging process and a current charging process.

[0138] Furthermore, the temperature span of the current temperature segment is 1°C.

[0139] Based on the same inventive concept, this embodiment provides Figure 3 An electronic device as shown includes:

[0140] processor;

[0141] a memory for storing processor-executable instructions;

[0142] The processor is configured to execute to implement a battery remaining capacity correction method as provided above.

[0143] Based on the same inventive concept, this embodiment provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device can implement a battery remaining capacity correction method as provided above.

[0144] Since the electronic device introduced in this embodiment is an electronic device used to implement the information processing method in the embodiment of the present application, based on the information processing method introduced in the embodiment of the present application, a person skilled in the art can understand the specific implementation of the electronic device of the present embodiment and its various variations, so how the electronic device implements the method in the embodiment of the present application is not described in detail here. As long as a person skilled in the art implements the electronic device used by the information processing method in the embodiment of the present application, it belongs to the scope of protection of this application.

[0145] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0146] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0147] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0148] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0149] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0150] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for correcting the remaining capacity of a battery, characterized in that: The method comprises: During the current operation of the battery, the current change in power of the battery in the current temperature segment is determined; the current change in power refers to the current cumulative change in power of the battery in the current temperature segment; the current temperature segment refers to a temperature interval with a temperature span; Acquire the historical change of power of the battery in the historical temperature segments, where the historical temperature segments are all temperature segments except the current temperature segment and before the current moment in the current working process; Determine the equivalent change in electrical quantity corresponding to the historical change in electrical quantity in the current temperature segment; Determine the remaining battery capacity of the battery in the current temperature segment according to the current change in power, the equivalent change in power, and the current total capacity of the battery corresponding to the current temperature segment; The determining of the current change in power of the battery within the current temperature segment includes: Determine the current change in power of the battery within the current temperature segment according to the first duration of the current temperature segment and the battery current parameter corresponding to the current temperature segment; the start time of the first duration is the time when the battery temperature jumps to the current temperature segment, and the end time of the first duration is the current time; The determining of the equivalent change in electric quantity corresponding to the historical change in electric quantity within the current temperature segment includes: determining the equivalent change in electric quantity based on the historical total capacity corresponding to the historical temperature segment, the historical change in electric quantity and the current total capacity corresponding to the current temperature segment; the ratio of the historical change in electric quantity to the equivalent change in electric quantity is equal to the ratio of the historical total capacity to the current total capacity.

2. The method according to claim 1, characterized in that Before obtaining the historical change in power of the battery in the historical temperature segments, the method further includes: The historical change in power of the battery within the historical temperature segment is determined according to the second duration of the historical temperature segment and the battery current parameter corresponding to the historical temperature segment, and the historical change in power is stored.

3. The method according to claim 1, characterized in that After determining the remaining battery capacity of the battery within the current temperature segment, the method further includes: Determine whether the current working process is finished; If the current working process is not finished, the current temperature segment is monitored, and when the current temperature segment is updated, the remaining battery capacity of the battery in the updated current temperature segment is determined for the updated current temperature segment.

4. The method according to claim 1, characterized in that The current working process includes any one of a current discharging process and a current charging process.

5. The method according to claim 1, characterized in that The temperature span of the current temperature segment is 1°C.

6. A battery remaining capacity correction device, characterized in that: The device comprises: The current change power determination module is used to determine the current change power of the battery in the current temperature segment during the current operation of the battery; the current change power refers to the current cumulative change power of the battery in the current temperature segment; the current temperature segment refers to a temperature interval with a temperature span; A historical change power acquisition module, used for acquiring the historical change power of the battery in historical temperature segments, wherein the historical temperature segments are all temperature segments before the current moment except the current temperature segment during the current working process; An equivalent change electric quantity determination module, used for determining an equivalent change electric quantity corresponding to the historical change electric quantity in the current temperature segment; a battery remaining capacity determination module, configured to determine the battery remaining capacity of the battery in the current temperature segment according to the current changed power, the equivalent changed power, and the current total capacity of the battery corresponding to the current temperature segment; The current change power determination module includes: The current change power determination submodule is used to determine the current change power of the battery in the current temperature segment according to the first duration of the current temperature segment and the battery current parameter corresponding to the current temperature segment; the start time of the first duration is the time when the battery temperature jumps to the current temperature segment, and the end time of the first duration is the current time; The equivalent change power determination module includes: The equivalent change power determination submodule is used to determine the equivalent change power according to the historical total capacity corresponding to the historical temperature segment, the historical change power and the current total capacity corresponding to the current temperature segment; the ratio of the historical change power to the equivalent change power is equal to the ratio of the historical total capacity to the current total capacity.

7. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute to implement a battery remaining capacity correction method as claimed in any one of claims 1 to 5.

8. A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to implement a battery remaining capacity correction method as described in any one of claims 1 to 5.

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