CN116960524A - Battery temperature adjusting method and device, electronic equipment and storage medium - Google Patents

Abstract

The application discloses a battery temperature adjusting method, a device, electronic equipment and a storage medium, wherein the method comprises the following steps: collecting the current temperature of the battery; the battery comprises a plurality of temperature sampling areas, wherein the current temperature comprises the current temperature corresponding to each temperature sampling area in the temperature sampling areas; judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature or not; if the current temperature difference is greater than the preset temperature, performing temperature difference adjustment on the plurality of temperature sampling areas so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature; judging whether the temperatures of the temperature sampling areas reach the target temperature, if so, stopping temperature regulation on the battery, thereby improving the accuracy of temperature regulation, saving resources, accurately optimizing the working environment of the battery and improving the cruising ability of the battery.

Description

Battery temperature adjusting method and device, electronic equipment and storage medium

Technical Field

The present application relates to the field of battery technologies, and in particular, to a method and an apparatus for adjusting battery temperature, an electronic device, and a storage medium.

Background

The new energy battery can have low battery efficiency or influence on battery life when working under low-temperature or high-temperature working conditions, so that the new energy battery needs to be subjected to temperature regulation so that the new energy battery can work under a proper temperature environment.

At present, the temperature regulation mode of the new energy battery generally collects the temperature of the battery core, and when the temperature of the battery core is lower than/higher than a set temperature value, the temperature of the battery core is regulated in a hydrothermal/water-cooling mode, so that the temperature of the battery reaches a proper temperature, and the new energy battery can work in a proper temperature environment. However, the temperature difference between the battery cells near the frame of the battery pack and the battery cells in the middle of the battery pack is large, and the current temperature adjustment mode is to adjust the overall temperature of the battery, so that the temperatures of different battery cell areas of the battery pack are inconsistent, and the temperature adjustment is inaccurate and energy resource waste exists.

Disclosure of Invention

In view of the above problems, the application provides a battery temperature adjusting method, a device, an electronic device and a storage medium, which can solve the problems of inaccurate temperature adjustment and energy resource waste existing in the current new energy battery temperature adjustment.

In a first aspect, the present application provides a battery temperature adjustment method, the method comprising: collecting the current temperature of the battery; the battery comprises a plurality of temperature sampling areas, wherein the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas; judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature or not; if the current temperature difference is greater than the preset temperature, performing temperature difference adjustment on the plurality of temperature sampling areas so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature; judging whether the temperatures of the temperature sampling areas all reach the target temperature, and if the temperatures of the temperature sampling areas all reach the target temperature, stopping temperature regulation of the battery.

According to the technical scheme, the battery is divided into a plurality of temperature sampling areas, the current temperature of each temperature sampling area is collected first, and then the relation between the current temperature difference of any two temperature sampling areas and the preset temperature is judged. If the temperature difference is larger than the preset temperature, the temperature difference adjustment is carried out on the plurality of temperature sampling areas, so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature. Meanwhile, according to the temperature difference adjustment method, temperature difference adjustment is performed on the plurality of temperature sampling areas, so that after the temperature difference of any two temperature sampling areas is smaller than the preset temperature, whether the plurality of temperature sampling areas reach the target temperature is judged, and therefore temperature adjustment of the battery is stopped under the condition that the temperatures of the plurality of temperature sampling areas reach the target temperature.

Therefore, according to the battery temperature regulation scheme, on one hand, temperature difference regulation is carried out on the temperature difference of different areas of the current battery pack, so that the problems that the temperature regulation is inaccurate and energy resources are wasted due to the temperature difference of the different areas of the battery pack are solved through the temperature difference regulation of different temperature sampling areas, the accuracy of the temperature regulation is improved, and resources are saved. On the other hand, whether the temperature sampling areas reach the target temperature is judged after the temperature difference is regulated, so that the overall temperature of the battery can reach the optimal target temperature suitable for working after the temperature difference is regulated, the working environment of the battery is accurately optimized, and the cruising ability of the battery is improved.

In a first embodiment, the temperature differential adjustment of the plurality of temperature sampling regions includes: determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; performing temperature difference adjustment on the at least one temperature difference adjustment area; judging whether the temperature difference of any two temperature sampling areas after adjustment is larger than the preset temperature or not by taking the preset time as an interval; if yes, returning to the step of determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; and if not, executing the step of judging whether the temperatures of the plurality of temperature sampling areas all reach the target temperature.

In some embodiments, determining at least one temperature differential adjustment region from the current temperature of each temperature sampling region includes: acquiring a current battery temperature regulation mode, wherein the battery temperature regulation mode comprises a heating mode or a cooling mode; and determining at least one temperature difference adjustment region according to the current battery temperature adjustment mode and the current temperature of each temperature sampling region.

In some embodiments, determining at least one temperature differential-regulated cell region based on a current battery temperature regulation mode and a current temperature of each temperature sampling region includes: determining a temperature reference area among a plurality of temperature sampling areas according to a current battery temperature adjustment mode; calculating a reference temperature difference between the temperature reference area and each other temperature sampling area; and determining a temperature sampling area with the reference temperature difference being greater than a preset temperature as a temperature difference adjusting area.

In some embodiments, determining a temperature reference region among a plurality of temperature sampling regions according to a current battery temperature adjustment mode includes: if the current battery temperature regulation mode is a heating mode, determining a temperature sampling area with the highest temperature in a plurality of temperature sampling areas as a temperature reference area; and if the current battery temperature regulation mode is a cooling mode, determining a battery cell area with the lowest temperature in the plurality of temperature sampling areas as a temperature reference area.

According to the embodiment of the application, the temperature difference adjusting area is determined according to the battery temperature adjusting mode and the current temperature of each temperature sampling area, so that the temperature difference adjusting area is subjected to temperature difference adjustment, and then the temperature difference of any two adjusted temperature sampling areas is judged to be larger than the preset temperature or not by taking preset time as an interval. If the temperature difference of any two temperature sampling areas after adjustment is larger than the preset temperature, the temperature difference adjustment area is redetermined and temperature difference adjustment is carried out; and if the temperature difference of any two temperature sampling areas after adjustment is smaller than the preset temperature, judging the target temperature. Through the mode, the temperature difference of the temperature sampling areas can be accurately adjusted, so that the problems that the temperature adjustment is inaccurate and energy resources are wasted due to the temperature difference of different areas of the battery pack are solved, the accuracy of the temperature adjustment is improved, and resources are saved.

In some embodiments, the preset temperature is 3 ℃ to 7 ℃ and the preset time is 3 minutes to 10 minutes.

In some embodiments, the preset temperature is 5 ℃ and the preset time is 5 minutes. The embodiment of the application designs specific preset temperature and preset time parameters, thereby more accurately determining the reduction proportion of the single-time temperature adjustment energy consumption of the battery relative to the energy consumption in the traditional mode, and further accurately setting related parameters so as to improve the cruising ability of the battery.

In some embodiments, after determining whether the temperatures of the plurality of temperature sampling regions all reach the target temperature, the method further comprises: if the temperatures of the temperature sampling areas do not reach the target temperature, calculating a target temperature difference between the temperature of each temperature adjusting area and the target temperature, wherein each temperature adjusting area is a temperature sampling area of which the temperature does not reach the target temperature; determining the temperature regulation proportion of each temperature regulation area according to the target temperature difference of each temperature regulation area; and adjusting the corresponding temperature adjusting areas according to the temperature adjusting proportion so that the temperatures of the plurality of battery cell areas reach the target temperature. According to the embodiment of the application, under the condition that the temperatures of the temperature sampling areas do not reach the target temperature, the target temperature difference between the temperature of each temperature adjusting area and the target temperature is calculated, and then the temperature adjusting proportion of the corresponding temperature adjusting area is determined according to the target temperature difference of each temperature adjusting area, so that the corresponding temperature adjusting area is adjusted according to the temperature adjusting proportion, the time of each temperature adjusting area reaching the target temperature tends to be consistent, the battery heating time is saved, and the battery temperature adjusting rate is improved.

In a second aspect, the present application provides a battery temperature adjustment device comprising: the device comprises an acquisition module, a judging module, an adjusting module and a control module; the acquisition module is used for acquiring the current temperature of the battery; the battery comprises a plurality of temperature sampling areas, wherein the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas; the judging module is used for judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature; the adjusting module is used for adjusting the temperature difference of the plurality of temperature sampling areas after the judging module judges that the current temperature difference of any two temperature sampling areas is larger than the preset temperature, so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature; the judging module is also used for judging whether the temperatures of the temperature sampling areas reach the target temperature; and the control module is used for stopping the temperature regulation of the battery after the judging module judges that the temperatures of the temperature sampling areas reach the target temperature.

According to the technical scheme, the battery is divided into a plurality of temperature sampling areas, the current temperature of each temperature sampling area is firstly collected by the collecting module, then the judging module judges the relation between the current temperature difference of any two temperature sampling areas and the preset temperature, if the relation is larger than the preset temperature, the temperature difference of the temperature sampling areas is regulated by the regulating module, so that the temperature difference of the temperature sampling areas is smaller than the preset temperature, meanwhile, the temperature difference of the temperature sampling areas is regulated, so that after the temperature difference of the temperature sampling areas is smaller than the preset temperature, the judging module judges whether the temperature sampling areas reach the target temperature, and therefore the temperature regulation of the battery is stopped by the control module under the condition that the temperature of the temperature sampling areas reaches the target temperature. Therefore, according to the battery temperature adjusting scheme, on one hand, temperature difference adjustment is carried out on the temperature difference of different areas of the current battery pack, so that the problems that the temperature adjustment is inaccurate and energy resources are wasted due to the temperature difference of the different areas of the battery pack are solved through the temperature difference adjustment of different temperature sampling areas, the accuracy of the temperature adjustment is improved, and the resources are saved; on the other hand, whether the temperature sampling areas reach the target temperature is judged after the temperature difference is regulated, so that the overall temperature of the battery can reach the optimal target temperature suitable for working after the temperature difference is regulated, the working environment of the battery is accurately optimized, and the cruising ability of the battery is improved.

In some embodiments, the adjusting module is specifically configured to determine at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; performing temperature difference adjustment on at least one temperature difference adjustment area; judging whether the temperature difference of any two temperature sampling areas after adjustment is larger than a preset temperature or not by taking the preset time as an interval; if yes, returning to the step of determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; and if not, executing the step of judging whether the temperatures of the plurality of temperature sampling areas all reach the target temperature.

In some embodiments, the adjusting module is further specifically configured to obtain a current battery temperature adjustment mode, where the battery temperature adjustment mode includes a heating mode or a cooling mode; and determining at least one temperature difference adjustment region according to the current battery temperature adjustment mode and the current temperature of each temperature sampling region.

In some embodiments, the adjustment module is further specifically configured to determine a temperature reference region among the plurality of temperature sampling regions according to a current battery temperature adjustment mode; calculating a reference temperature difference between the temperature reference area and each other temperature sampling area; and determining a temperature sampling area with the reference temperature difference being greater than a preset temperature as a temperature difference adjusting area.

In some embodiments, the apparatus further includes a calculating module configured to calculate, after the judging module judges that the temperatures of the plurality of temperature sampling areas do not all reach the target temperature, a target temperature difference between the temperature of each temperature adjustment area and the target temperature, where each temperature adjustment area is a temperature sampling area where the temperature does not reach the target temperature; the determining module is used for determining the temperature regulation proportion of the corresponding temperature regulation area according to the target temperature difference of each temperature regulation area; the adjusting module is further used for adjusting the corresponding temperature adjusting areas according to the temperature adjusting proportion so that the temperatures of the plurality of battery cell areas reach the target temperature.

In a third aspect, the present application provides an electronic device comprising a memory storing a computer program and a processor executing the computer program to perform the method of any of the alternative implementations of the first aspect.

In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method of any of the alternative implementations of the first aspect.

In a fifth aspect, the present application provides a computer program product which, when run on a computer, causes the computer to perform the method of any of the alternative implementations of the first aspect.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic view of a vehicle structure according to the present application;

FIG. 2 is a schematic diagram of a first process of the battery temperature adjustment method according to the present application;

fig. 3 is a schematic view of a battery partition structure according to the present application;

FIG. 4 is a schematic view of another battery partition structure according to the present application;

FIG. 5 is a schematic diagram of a second process of the battery temperature adjustment method according to the present application;

FIG. 6 is a schematic view of a third flow chart of a battery temperature adjustment method according to the present application;

fig. 7 is a schematic diagram of a fourth flow chart of the battery temperature adjustment method according to the present application;

fig. 8 is a schematic diagram of a fifth flow chart of the battery temperature adjustment method according to the present application;

fig. 9 is a schematic structural view of a battery temperature adjusting device provided by the present application;

fig. 10 is a schematic structural diagram of an electronic device provided by the present application.

Reference numerals in the specific embodiments are as follows:

1000-vehicle; 100-cell; 200-a controller; 300-motor; a1-an inner ring cell; a2-an outer ring cell; b1, B2, B3 and B4-temperature sampling regions; 900-an acquisition module; 910-a judgment module; 920-an adjustment module; 930-a control module; 940-a calculation module; 950-a determination module; 10-an electronic device; 1001-a processor; 1002-memory; 1003-communication bus.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

The new energy battery can have low battery efficiency or influence on battery life when working under low-temperature or high-temperature working conditions, so that the new energy battery needs to be subjected to temperature regulation so that the new energy battery can work under a proper temperature environment.

The inventor notes that the temperature adjustment mode of the new energy battery generally collects the temperature of the battery core, and adjusts the temperature of the battery core through a hydrothermal/water-cooling mode when the temperature of the battery core is lower than/higher than a set temperature value, so that the temperature of the battery reaches a proper temperature, and the new energy battery can work in a proper temperature environment. However, the temperature difference between the battery cell near the battery pack frame and the battery pack middle battery cell is large, for example, in a low-temperature environment, the temperature of the battery cell near the battery pack frame is lower than the battery pack middle battery cell temperature, and the current temperature adjustment mode is to heat the whole battery cell by adopting a hydrothermal mode when the battery cell temperature is lower than a set temperature value, so when the battery cell temperature near the battery pack edge reaches the set temperature value, the temperature of the battery pack middle battery cell exceeds the set temperature value, the temperature adjustment of the whole battery is inaccurate, the whole battery temperature is unbalanced, the battery work is influenced, and the resource consumption caused by the temperature rise of the middle battery cell is meaningless, so the problem of resource waste exists.

The inventor researches and discovers that the temperature of the battery cells in the battery pack can be controlled in a partitioning way, and the temperatures of the different battery cell areas are respectively collected to respectively control the temperatures of the different battery cell areas of the battery pack, so that the problems existing in the current battery temperature regulation mode are solved.

The inventor has conducted intensive studies and has designed a battery temperature regulation method, this method gathers the present temperature of different temperature sampling areas (different regional electric core in the battery) of the battery, thus control the temperature difference of different temperature sampling areas in the range of preset temperature, and under the condition of controlling the temperature difference of different temperature sampling areas in the range of preset temperature, make the temperature of all temperature sampling areas reach the goal temperature, thus realize the temperature regulation of the battery, in order to solve the problem that the temperature regulation of the present new energy battery is inaccurate and energy resource waste.

The battery temperature adjusting method, the device, the electronic equipment and the storage medium disclosed by the embodiment of the application can be applied to power equipment which adopts a battery as a power source, wherein the power equipment comprises but is not limited to electric devices such as vehicles, ships or aircrafts.

For convenience of description, the following embodiment will take an electric device according to an embodiment of the present application as an example of the vehicle 10.

Referring to fig. 1, fig. 1 is a schematic diagram of a vehicle 10 according to some embodiments of the application. The vehicle 10 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The interior of the vehicle 10 is provided with a battery 100, and the battery 100 may be provided at the bottom or at the head or at the tail of the vehicle 10. The battery 100 may be used to power the vehicle 10, for example, the battery 100 may be used as an operating power source for the vehicle 10. The vehicle 10 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 10.

In some embodiments of the present application, battery 100 may be used not only as an operating power source for vehicle 10, but also as a driving power source for vehicle 10, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 10.

Here, in the present application, the battery 100 is used as a driving power source for the vehicle 10 as driving power to be supplied to the vehicle 10.

The application provides a battery temperature adjusting method, which can be applied to a computing device, wherein the computing device comprises a controller, a chip or a computer, and the like, so as to realize battery temperature adjustment, balance the battery temperature adjustment and reduce the energy consumption of a system, thereby improving the battery endurance, and the method comprises the following steps of:

Step S200: the method comprises the steps of collecting the current temperature of the battery, wherein the battery comprises a plurality of temperature sampling areas, and the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas.

Step S210: and judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature, if so, turning to step S220.

Step S220: and performing temperature difference adjustment on the plurality of temperature sampling areas to ensure that the temperature difference of any two temperature sampling areas is smaller than the preset temperature.

Step S230: and judging whether the temperatures of the temperature sampling areas reach the target temperature, if so, turning to step S240.

Step S240: the temperature adjustment of the battery is stopped.

In the above embodiment, the battery cells in the battery pack are divided into a plurality of temperature sampling areas, as a possible example, as shown in fig. 3, the battery cells in the battery pack may be divided into an inner ring battery cell A1 and an outer ring battery cell A2, the outer ring battery cell A2 represents a battery cell close to the frame of the battery pack, and the inner ring battery cell A1 represents a battery cell in the middle of the battery pack, so that the present embodiment forms two temperature sampling areas of the inner ring battery cell A1 and the outer ring battery cell A2. It should be noted that, in addition to the above-mentioned two temperature sampling areas of the inner ring cell A1 and the outer ring cell A2, the present solution may divide the battery pack into other number of temperature sampling areas according to the structure in the battery pack, for example, as shown in fig. 4, the present solution may divide the battery pack into 4 equal parts so as to obtain 4 temperature sampling areas B1, B2, B3 and B4.

On the basis of the above, for step S200, the method may include collecting the current temperature of each temperature sampling area, and as a possible implementation manner, the method may set a temperature sensor in each temperature sampling area, so as to perform identification and collection on the current temperature of each temperature sampling area. For example, the temperature sensors can be respectively arranged in the two temperature sampling areas of the inner ring battery cell A1 and the outer ring battery cell A2, so that the current temperatures respectively corresponding to the inner ring battery cell and the outer ring battery cell can be acquired. Of course, other temperature collection modes besides the temperature sensor can be adopted, for example, a thermistor is arranged in each temperature sampling area, so that temperature collection is realized.

After the current temperature of each temperature sampling area is acquired, the current temperature difference between every two temperature sampling areas can be calculated, so that whether the current temperature difference of any two temperature sampling areas is larger than the preset temperature or not is judged. For example, according to the two temperature sampling areas of the inner ring cell A1 and the outer ring cell A2, the present solution can calculate the current temperature difference between the current temperature of the inner ring cell A1 and the current temperature of the outer ring cell A2, so as to determine whether the current temperature difference between the current temperature of the inner ring cell A1 and the current temperature of the outer ring cell A2 is greater than the preset temperature. For another example, according to the foregoing example 4 temperature sampling areas B1, B2, B3 and B4, the present solution may calculate the current temperature differences of the temperature sampling areas B1 and B2, the current temperature differences of the temperature sampling areas B2 and B3, the current temperature differences of the temperature sampling areas B3 and B4, the current temperature differences of the temperature sampling areas B1 and B3, the current temperature differences of the temperature sampling areas B1 and B4 and the current temperature differences of the temperature sampling areas B2 and B4, respectively, so as to determine whether each temperature difference is greater than a preset temperature, thereby implementing the determination whether the current temperature difference of any two temperature sampling areas is greater than the preset temperature.

On the basis, if the current temperature difference of any two temperature sampling areas is judged to be larger than the preset temperature, temperature difference adjustment is carried out on the plurality of temperature sampling areas, so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature. For example, according to the foregoing example, if it is determined that the current temperature difference between the current temperature of the inner ring cell A1 and the current temperature of the outer ring cell A2 is greater than the preset temperature, then the temperature difference between the inner ring cell A1 and the outer ring cell A2 is adjusted so that the temperature difference between the inner ring cell A1 and the outer ring cell A2 is less than the preset temperature. The preset temperature described above can be adaptively adjusted according to the actual application scenario.

According to the scheme, the temperature difference of the temperature sampling areas is adjusted, so that the temperature of the temperature sampling areas after the temperature difference adjustment is completed still reaches the target temperature, and the target temperature represents the final temperature of the battery suitable for working under the condition that the temperature difference of any two temperature sampling areas is smaller than the preset temperature.

On the basis of the above, the present solution further executes step S230 to determine whether the temperatures of the plurality of temperature sampling regions all reach the target temperature, and if all reach the target temperature, the temperature adjustment of the battery is stopped.

As a possible example, taking the foregoing inner-ring electric core A1 and outer-ring electric core A2 as an example, in a low-temperature environment, the current temperature of the outer-ring electric core A2 is 5 ℃, the current temperature of the inner-ring electric core A1 is 15 ℃, the preset temperature is set to be 5 ℃, the target temperature is 15 ℃, and the calculated current temperature difference between the outer-ring electric core A2 and the inner-ring electric core A1 is 10 ℃, then the temperature difference between the inner-ring electric core A1 and the outer-ring electric core A2 is adjusted, so that the temperature difference between the inner-ring electric core A1 and the outer-ring electric core A2 is less than 5 ℃, and the temperature of the outer-ring electric core A2 is only increased to 15 ℃, at this time, the temperature difference between the inner-ring electric core A1 and the outer-ring electric core A2 is less than 5 ℃, and the temperature of the inner-ring electric core A1 and the outer-ring electric core A2 just reaches the target temperature of 15 ℃, then the battery is indicated to reach the temperature suitable for working, so that the temperature adjustment of the battery is stopped.

According to the battery temperature adjusting method, the battery is divided into the plurality of temperature sampling areas, the current temperature of each temperature sampling area is firstly collected, then the relation between the current temperature difference of any two temperature sampling areas and the preset temperature is judged, if the current temperature difference is larger than the preset temperature, temperature difference adjustment is conducted on the plurality of temperature sampling areas, the temperature difference of any two temperature sampling areas is smaller than the preset temperature, meanwhile, temperature difference adjustment is conducted on the plurality of temperature sampling areas, after the temperature difference of any two temperature sampling areas is smaller than the preset temperature, whether the plurality of temperature sampling areas reach the target temperature is judged, and therefore the temperature adjustment of the battery is stopped under the condition that the temperature of the plurality of temperature sampling areas reach the target temperature. Therefore, according to the battery temperature adjusting scheme, on one hand, temperature difference adjustment is carried out on the temperature difference of different areas of the current battery pack, so that the problems that the temperature adjustment is inaccurate and energy resources are wasted due to the temperature difference of the different areas of the battery pack are solved through the temperature difference adjustment of different temperature sampling areas, the accuracy of the temperature adjustment is improved, and the resources are saved; on the other hand, whether the temperature sampling areas reach the target temperature is judged after the temperature difference is regulated, so that the overall temperature of the battery can reach the optimal target temperature suitable for working after the temperature difference is regulated, the working environment of the battery is accurately optimized, and the cruising ability of the battery is improved.

According to some embodiments of the present application, as a possible implementation manner, the foregoing manner of performing temperature difference adjustment on the plurality of temperature sampling areas may include the following steps, as shown in fig. 5:

step S500: at least one temperature differential adjustment zone is determined based on the current temperature of each temperature sampling zone.

Step S510: and performing temperature difference adjustment on at least one temperature difference adjustment area.

Step S520: judging whether the temperature difference of any two temperature sampling areas after adjustment is larger than a preset temperature or not by taking the preset time as an interval, and if so, returning to the step S500; if not, go to step S230.

In the above embodiment, the temperature difference adjustment region indicates a region in which temperature adjustment is required among two temperature difference adjustment regions in which the current temperature difference is greater than the preset temperature. For example, in accordance with the foregoing example of the inner-ring cell A1 and the outer-ring cell A2, assuming that the preset temperature is set to 5 ℃, the current temperature of the outer-ring cell A2 is set to 5 ℃, and the current temperature of the inner-ring cell A1 is set to 15 ℃, step S500 may determine one temperature sampling area from the outer-ring cell A2 and the inner-ring cell A1 as the temperature difference adjustment area. It should be noted that, the above is only an example performed according to the case where the temperature difference between the two temperature sampling regions is greater than the preset temperature, and for the case where the temperature difference between the two or more temperature sampling regions is greater than the preset temperature, a plurality of temperature difference adjustment regions may be determined, for example, according to the above example, the 4 temperature sampling regions B1, B2, B3, and B4, and if the current temperature difference between the temperature sampling regions B1 and B2 is greater than the preset temperature and the current temperature difference between the temperature sampling regions B1 and B4 is greater than the preset temperature, two temperature difference adjustment regions, which are assumed to be B2 and B4, may be determined therefrom. The temperature difference adjusting area can be determined according to the current temperature adjusting mode of the battery, for example, the temperature difference adjusting area determined by the temperature increase of the battery and the temperature decrease of the battery is different.

As a specific embodiment, the manner of determining the temperature difference adjustment region, as shown in fig. 6, may be determined by including:

step S600: and acquiring the current battery temperature regulation mode.

Step S610: at least one temperature difference adjustment region is determined according to the current battery temperature adjustment mode and the current temperature of each temperature sampling region.

In the above embodiment, the battery temperature adjustment mode may include a heating mode or a cooling mode, where the heating mode indicates that the current temperature is low, and the internal battery cell needs to be heated; the cooling mode indicates that the current temperature is high, and the battery inner cell needs to be cooled. On the basis, the method determines at least one temperature difference adjusting area according to the current battery temperature adjusting mode and the current temperature of each temperature sampling area.

Specifically, in order to ensure the consistency of the temperature after the temperature difference adjustment, for step S610, as shown in fig. 7, the method specifically includes the following steps:

step S700: a temperature reference region is determined among the plurality of temperature sampling regions according to the current battery temperature regulation mode.

Step S710: and calculating a reference temperature difference between the temperature reference area and each other temperature sampling area.

Step S720: and determining a temperature sampling area with the reference temperature difference larger than the preset temperature as a temperature difference adjusting area.

In step S700, if the current battery temperature adjustment mode is the heating mode, the present solution may determine a temperature sampling area with the highest temperature among the plurality of temperature sampling areas as a temperature reference area; if the current battery temperature regulation mode is a cooling mode, the battery cell area with the lowest temperature in the plurality of temperature sampling areas can be determined to be a temperature reference area by the scheme. For example, according to the foregoing examples, the temperature sampling regions B1, B2, B3, and B4, where the temperature of the temperature sampling region B1 is highest and the current battery temperature adjustment mode is the heating mode, the temperature sampling region B1 is taken as the temperature reference region.

After the temperature reference area is determined in the mode, the reference temperature difference between the temperature reference area and each other temperature sampling area is calculated. According to the foregoing example, the temperature differences between the temperature sampling region B1 and the temperature sampling regions B2, B3, and B4 are calculated, respectively.

On the basis of the above, the temperature sampling area with the reference temperature difference larger than the preset temperature is determined as the temperature difference adjusting area, and according to the above example, assuming that the temperature difference between the temperature sampling area B1 and the temperature sampling area B2 is smaller than the preset temperature and the temperature difference between the temperature sampling area B1 and the temperature sampling areas B3 and B4 is larger than the preset temperature, the temperature sampling areas B3 and B4 are determined as the temperature difference adjusting areas.

After the temperature difference adjusting area is determined through the mode, the temperature difference adjusting area is subjected to temperature difference adjustment through the scheme, for example, under the condition that the battery temperature adjusting mode is the heating mode, the temperature of the temperature difference adjusting area can be increased, so that the temperature of the temperature difference adjusting area is increased and approaches to the temperature reference area, and the reference temperature difference of the temperature difference adjusting area and the temperature reference area is reduced. Under the condition that the battery temperature regulation mode is a cooling mode, the temperature difference regulation area can be cooled by the scheme, so that the temperature of the temperature difference regulation area is reduced and approaches to the temperature reference area, and the reference temperature difference of the temperature regulation area and the temperature reference area is reduced.

Under the condition of carrying out temperature difference adjustment on the temperature difference adjustment area, the scheme takes preset time as an interval, judges whether the temperature difference of any two temperature sampling areas after adjustment is larger than preset temperature, if the temperature difference of any two temperature sampling areas is smaller than the preset temperature, the temperature difference between the temperature sampling areas meets the requirement, and then step S230 is executed to judge the target temperature; if the temperature difference of any two temperature sampling areas is larger than the preset temperature, returning to the step of determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area.

It should be noted that, in this solution, the temperature difference is determined after the preset time interval, so that the temperature amplitude of the original temperature difference adjusting area adjusted in the preset time may exceed the temperature of the temperature reference area, so that the solution needs to return to step S500 to determine at least one temperature difference adjusting area again according to the current temperature of each temperature sampling area. For example, according to the foregoing example, the temperature of the temperature sampling region B1 is 15 ℃, the temperature of the temperature sampling region B3 is 9 ℃, the temperature sampling region B4 is 5 ℃, and the preset temperature is 5 ℃, so that the temperature sampling regions B3 and B4 are temperature difference adjusting regions, and then the temperature sampling regions B3 and B4 need to be warmed up in the battery heating mode, on the basis that the preset time is 5 minutes, the temperature sampling region B3 is 17 ℃ and the temperature sampling region B4 is 11 ℃ after 5 minutes. In this case, the temperature difference between the temperature sampling regions B3 and B4 may be detected to be greater than the preset temperature when the present embodiment performs step S520, in which case, the process returns to step S500 to re-determine the temperature reference region and to re-determine the temperature difference adjustment region.

According to the embodiment of the application, the temperature difference adjusting area is determined according to the battery temperature adjusting mode and the current temperature of each temperature sampling area, so that the temperature difference adjusting area is subjected to temperature difference adjustment, then the scheme judges whether the temperature difference of any two adjusted temperature sampling areas is larger than the preset temperature or not by taking preset time as an interval, and if the temperature difference of any two adjusted temperature sampling areas is larger than the preset temperature, the temperature difference adjusting area is determined again and the temperature difference adjustment is performed; and if the temperature difference of any two temperature sampling areas after adjustment is smaller than the preset temperature, judging the target temperature. Through the mode, the temperature difference of the temperature sampling areas can be accurately adjusted, so that the problems that the temperature adjustment is inaccurate and energy resources are wasted due to the temperature difference of different areas of the battery pack are solved, the accuracy of the temperature adjustment is improved, and resources are saved.

According to some embodiments of the present application, after executing step S230 to determine whether the temperatures of the plurality of temperature sampling areas all reach the target temperature, if the temperatures of the plurality of temperature sampling areas do not all reach the target temperature, as shown in fig. 8, the present application may further include the following steps:

step S800: a target temperature difference between the temperature of each temperature adjustment region and the target temperature is calculated.

Step S810: and determining the temperature regulation proportion of each temperature regulation area according to the target temperature difference of each temperature regulation area.

Step S820: and adjusting the corresponding temperature adjusting areas according to the temperature adjusting proportion so that the temperatures of the plurality of battery cell areas reach the target temperature.

In step S800, the temperature adjustment region indicates a temperature sampling region in which the temperature does not reach the target temperature. For step S800, the present solution may obtain the temperature of each temperature sampling area after the temperature difference adjustment is completed, and then calculate the target temperature difference between the temperature of each temperature adjustment area and the target temperature. For example, according to the foregoing example, after the temperature difference is adjusted, the temperature of the temperature sampling area B1 is 15 ℃, the temperature of the temperature sampling area B2 is 13 ℃, the temperature of the temperature sampling area B3 is 17 ℃, the temperature sampling area B4 is 14 ℃, the preset temperature is 5 ℃, and the target temperature is 20 ℃, so that the target temperature differences between the temperature sampling areas B1, B2, B3 and B4 and the target temperature can be calculated to be 5 ℃, 7 ℃, 3 ℃ and 6 ℃ respectively.

On the basis of the above, the temperature adjustment proportion of the corresponding temperature adjustment region is determined according to the target temperature difference of each temperature adjustment region, so that the temperatures of the plurality of battery cell regions all reach the target temperature by adjusting the corresponding temperature adjustment region according to the temperature adjustment proportion. Specifically, since the target temperature differences of the respective temperature adjustment regions are different, in order to make the times at which the respective temperature adjustment regions reach the target temperatures tend to be uniform, the corresponding temperature adjustment ratio may be determined for the different target temperature differences, where the temperature adjustment ratio may include the following manner: for example, in the case of performing temperature adjustment in a water-cooling/hydrothermal manner, different temperature adjustment ratios may be different opening degrees of the on-off valves, and specifically, the opening degrees of the on-off valves may be adjusted to be larger in the temperature sampling region with a larger target temperature difference, so that the temperature decrease/increase rate is faster, and thus, the time for each temperature adjustment region to reach the target temperature tends to be uniform. Of course, besides the mode of adopting different opening degrees of the switch valve, different powers can be set in an electric heating mode, so that electric heating with different powers corresponds to different heating degrees, and the time for each temperature regulation area to reach the target temperature tends to be consistent.

According to the embodiment of the application, under the condition that the temperatures of the temperature sampling areas do not reach the target temperature, the target temperature difference between the temperature of each temperature adjusting area and the target temperature is calculated, and then the temperature adjusting proportion of the corresponding temperature adjusting area is determined according to the target temperature difference of each temperature adjusting area, so that the corresponding temperature adjusting area is adjusted according to the temperature adjusting proportion, the time of each temperature adjusting area reaching the target temperature tends to be consistent, the battery heating time is saved, and the battery temperature adjusting rate is improved.

According to some embodiments of the application, the predetermined temperature may be 3 ℃ to 7 ℃ and the predetermined time may be 3 minutes to 10 minutes.

For the parameter range, the scheme collects multiple groups of parameter data, and finds that under the parameter adjustment of 3-5 ℃ of preset temperature and 3-5 minutes of preset time, the single-time temperature adjustment energy consumption of the battery is gradually increased relative to the traditional mode, and under the parameter condition of 5 ℃ of preset temperature and 5 minutes of preset time, the single-time temperature adjustment energy consumption of the battery is reduced by 40% as compared with the traditional mode, wherein the reduction ratio of the single-time temperature adjustment energy consumption of the battery is highest; under the parameter adjustment of the preset temperature being higher than 5 ℃ and the preset time being higher than 5 minutes, the energy consumption of single temperature adjustment of the battery is gradually reduced again compared with the traditional mode.

According to the embodiment, the specific preset temperature and preset time parameters are designed, so that the reduction proportion of the single-time temperature adjustment energy consumption of the battery relative to the energy consumption of the traditional mode can be more accurately determined, and further, related parameters can be accurately set, and the endurance capacity of the battery is improved.

Fig. 9 shows a schematic block diagram of a battery temperature adjusting apparatus according to the present application, and it should be understood that the apparatus corresponds to the embodiment of the method performed in fig. 2 to 8, and is capable of performing the steps involved in the foregoing method, and specific functions of the apparatus may be referred to the above description, and detailed descriptions thereof are omitted herein as appropriate to avoid redundancy. The device includes at least one software functional module that can be stored in memory in the form of software or firmware (firmware) or cured in an Operating System (OS) of the device. Specifically, the device comprises: the device comprises an acquisition module 900, a judgment module 910, an adjustment module 920 and a control module 930; the acquisition module 900 is used for acquiring the current temperature of the battery; the battery comprises a plurality of temperature sampling areas, wherein the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas; the judging module 910 is configured to judge whether a current temperature difference between any two temperature sampling areas is greater than a preset temperature; the adjusting module 920 is configured to perform temperature difference adjustment on the plurality of temperature sampling areas after the judging module judges that the current temperature difference between any two temperature sampling areas is greater than a preset temperature, so that the temperature difference between any two temperature sampling areas is less than the preset temperature; the judging module 910 is further configured to judge whether temperatures of the plurality of temperature sampling areas all reach a target temperature; and the control module 930 is configured to stop the temperature adjustment of the battery after the judging module judges that the temperatures of the plurality of temperature sampling areas all reach the target temperature.

In the technical solution of the embodiment of the present application, the battery is divided into a plurality of temperature sampling areas, the current temperature of each temperature sampling area is collected by the collecting module 900, then the judging module 910 judges the relationship between the current temperature difference of any two temperature sampling areas and the preset temperature, if the current temperature difference is greater than the preset temperature, the adjusting module 920 performs temperature difference adjustment on the plurality of temperature sampling areas so that the temperature difference of any two temperature sampling areas is less than the preset temperature, and meanwhile, the temperature difference adjustment is performed on the plurality of temperature sampling areas so that after the temperature difference of any two temperature sampling areas is less than the preset temperature, the judging module 910 also judges whether the temperature difference of the plurality of temperature sampling areas reaches the target temperature, so that the control module 930 stops performing temperature adjustment on the battery under the condition that the temperature of the plurality of temperature sampling areas reaches the target temperature. Therefore, according to the battery temperature adjusting scheme, on one hand, temperature difference adjustment is carried out on the temperature difference of different areas of the current battery pack, so that the problems that the temperature adjustment is inaccurate and energy resources are wasted due to the temperature difference of the different areas of the battery pack are solved through the temperature difference adjustment of different temperature sampling areas, the accuracy of the temperature adjustment is improved, and the resources are saved; on the other hand, whether the temperature sampling areas reach the target temperature is judged after the temperature difference is regulated, so that the overall temperature of the battery can reach the optimal target temperature suitable for working after the temperature difference is regulated, the working environment of the battery is accurately optimized, and the cruising ability of the battery is improved.

According to some embodiments of the present application, optionally, the adjusting module 920 is specifically configured to determine at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; performing temperature difference adjustment on at least one temperature difference adjustment area; judging whether the temperature difference of any two temperature sampling areas after adjustment is larger than a preset temperature or not by taking the preset time as an interval; if yes, returning to the step of determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; and if not, executing the step of judging whether the temperatures of the plurality of temperature sampling areas all reach the target temperature.

According to some embodiments of the present application, optionally, the adjusting module 920 is further specifically configured to obtain a current battery temperature adjusting mode, where the battery temperature adjusting mode includes a heating mode or a cooling mode; and determining at least one temperature difference adjustment region according to the current battery temperature adjustment mode and the current temperature of each temperature sampling region.

According to some embodiments of the present application, optionally, the adjusting module 920 is further specifically configured to determine a temperature reference area among a plurality of temperature sampling areas according to the current battery temperature adjustment mode; calculating a reference temperature difference between the temperature reference area and each other temperature sampling area; and determining a temperature sampling area with the reference temperature difference being greater than a preset temperature as a temperature difference adjusting area.

According to some embodiments of the present application, optionally, the apparatus further includes a calculating module 940 configured to calculate a target temperature difference between the temperature of each temperature adjustment region and the target temperature after the judging module judges that the temperatures of the plurality of temperature sampling regions do not reach the target temperature, where each temperature adjustment region is a temperature sampling region whose temperature does not reach the target temperature; a determining module 950, configured to determine a temperature adjustment ratio of each temperature adjustment area according to the target temperature difference of the corresponding temperature adjustment area; the adjusting module 920 is further configured to adjust the corresponding temperature adjusting regions according to the temperature adjusting ratio, so that the temperatures of the plurality of battery cell regions all reach the target temperature.

According to some embodiments of the present application, as shown in fig. 10, the present application provides an electronic device 10 comprising: processor 1001 and memory 1002, the processor 1001 and the memory 1002 being interconnected and in communication with each other by a communication bus 1003 and/or other form of connection mechanism (not shown), the memory 1002 storing a computer program executable by the processor 1001, which when executed by a computing device, the processor 1001 performs the method performed by any alternative implementation, such as steps S200 to S240: collecting the current temperature of a battery, wherein the battery comprises a plurality of temperature sampling areas, and the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas; judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature, if so, carrying out temperature difference adjustment on the plurality of temperature sampling areas, so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature, judging whether the temperatures of the plurality of temperature sampling areas reach a target temperature, and if so, stopping carrying out temperature adjustment on the battery.

The present application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs a method according to any of the preceding alternative implementations.

The storage medium may be implemented by any type of volatile or nonvolatile Memory device or combination thereof, such as static random access Memory (Static Random Access Memory, SRAM), electrically erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk.

The present application provides a computer program product which, when run on a computer, causes the computer to perform the method in any of the alternative implementations.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (11)

1. A battery temperature adjustment method, characterized by comprising:

collecting the current temperature of the battery; the battery comprises a plurality of temperature sampling areas, wherein the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas;

judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature or not;

if the current temperature difference of any two temperature sampling areas is larger than the preset temperature, performing temperature difference adjustment on the plurality of temperature sampling areas so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature;

judging whether the temperatures of the temperature sampling areas all reach the target temperature;

and if the temperatures of the temperature sampling areas reach the target temperature, stopping temperature regulation of the battery.

2. The method of claim 1, wherein the temperature differential adjusting the plurality of temperature sampling regions comprises:

determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area;

performing temperature difference adjustment on the at least one temperature difference adjustment area;

judging whether the temperature difference of any two temperature sampling areas after adjustment is larger than the preset temperature or not by taking the preset time as an interval;

If yes, returning to the step of determining at least one temperature difference adjusting area according to the current temperature of each temperature sampling area; and

and if not, executing the step of judging whether the temperatures of the temperature sampling areas reach the target temperature.

3. The method of claim 2, wherein said determining at least one temperature differential adjustment region based on the current temperature of each temperature sampling region comprises:

acquiring a current battery temperature regulation mode, wherein the battery temperature regulation mode comprises a heating mode or a cooling mode; and

and determining at least one temperature difference adjusting area according to the current battery temperature adjusting mode and the current temperature of each temperature sampling area.

4. The method of claim 3, wherein said determining at least one temperature differential-regulated cell region based on a current battery temperature regulation mode and a current temperature of said each temperature sampling region comprises:

determining a temperature reference area among the plurality of temperature sampling areas according to a current battery temperature adjustment mode;

calculating a reference temperature difference between the temperature reference area and each other temperature sampling area; and

and determining a temperature sampling area with the reference temperature difference larger than the preset temperature as a temperature difference adjusting area.

5. The method of claim 4, wherein said determining a temperature reference region among said plurality of temperature sampling regions according to a current battery temperature regulation mode comprises:

if the current battery temperature regulation mode is a heating mode, determining a temperature sampling area with the highest temperature in the plurality of temperature sampling areas as a temperature reference area; and

and if the current battery temperature regulation mode is a cooling mode, determining a battery cell area with the lowest temperature in the plurality of temperature sampling areas as a temperature reference area.

6. The method according to any one of claims 2 to 5, wherein the preset temperature is 3 to 7 ℃ and the preset time is 3 to 10 minutes.

7. The method of claim 6, wherein the predetermined temperature is 5 ℃ and the predetermined time is 5 minutes.

8. The method of claim 1, wherein after said determining whether the temperatures of the plurality of temperature sampling regions all reach a target temperature, the method further comprises:

if the temperatures of the temperature sampling areas do not reach the target temperature, calculating a target temperature difference between the temperature of each temperature adjusting area and the target temperature, wherein each temperature adjusting area is a temperature sampling area with the temperature not reaching the target temperature;

Determining the temperature regulation proportion of each temperature regulation area according to the target temperature difference of each temperature regulation area; and

and adjusting the corresponding temperature adjusting areas according to the temperature adjusting proportion so that the temperatures of the plurality of battery cell areas reach the target temperature.

9. A battery temperature adjustment device, characterized by comprising: the device comprises an acquisition module, a judging module, an adjusting module and a control module;

the acquisition module is used for acquiring the current temperature of the battery; the battery comprises a plurality of temperature sampling areas, wherein the current temperature comprises the current temperature corresponding to each temperature sampling area in the plurality of temperature sampling areas;

the judging module is used for judging whether the current temperature difference of any two temperature sampling areas is larger than a preset temperature or not;

the adjusting module is used for adjusting the temperature difference of the plurality of temperature sampling areas after the judging module judges that the current temperature difference of any two temperature sampling areas is larger than the preset temperature, so that the temperature difference of any two temperature sampling areas is smaller than the preset temperature;

the judging module is further used for judging whether the temperatures of the temperature sampling areas all reach the target temperature; and

The control module is used for stopping temperature adjustment of the battery after the judging module judges that the temperatures of the temperature sampling areas all reach the target temperature.

10. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the method of any one of claims 1 to 8 when executing the computer program.

11. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any one of claims 1 to 8.