CN112186310B - Cell temperature control method in battery compartment, storage medium, and battery management system - Google Patents

Abstract

Translated fromChinese

本发明公开了一种电池舱内电芯温控方法、存储介质、电池管理系统，其中，电池舱内电芯温控方法包括以下步骤：获取电池舱内空调器的制冷设定温度和制热设定温度，并根据制冷设定温度和制热设定温度计算基准温度；获取每个电芯的实时温度，并根据每个电芯的实时温度确定最大电芯温度和最小电芯温度，以及根据最大电芯温度、最小电芯温度和基准温度计算电芯综合温度；根据电芯综合温度对电池舱内的每个空调器进行控制。由此，该温控方法能够精准控制电芯的温度，降低电池舱内各电芯之间的温差，同时能够降低能耗。

The invention discloses a battery cell temperature control method in a battery compartment, a storage medium, and a battery management system, wherein the battery cell temperature control method in the battery compartment includes the following steps: obtaining a cooling set temperature and a heating temperature of an air conditioner in the battery compartment Set the temperature, and calculate the reference temperature according to the cooling set temperature and the heating set temperature; obtain the real-time temperature of each cell, and determine the maximum cell temperature and the minimum cell temperature according to the real-time temperature of each cell, and Calculate the comprehensive cell temperature according to the maximum cell temperature, the minimum cell temperature and the reference temperature; control each air conditioner in the battery compartment according to the comprehensive cell temperature. Therefore, the temperature control method can precisely control the temperature of the battery cells, reduce the temperature difference between the battery cells in the battery compartment, and reduce energy consumption at the same time.

Description

Battery cell temperature control method in battery compartment, storage medium and battery management system

Technical Field

The invention relates to the technical field of batteries, in particular to a method for controlling the temperature of a battery cell in a battery compartment, a computer-readable storage medium and a battery management system.

Background

At present, an electrochemical energy storage system is widely applied to the fields of peak shaving and frequency modulation at a power generation side, new energy auxiliary internet surfing, power grid side auxiliary service, user side energy storage and power backup and the like. The battery cell in the energy storage system is used as a core component of the system, so that the use safety of the battery cell is guaranteed, and the safety and the reliability of the energy storage system are particularly critical.

In the related art, one or more air conditioners are generally arranged in a battery compartment, each air conditioner performs a control scheme of judgment and cooling/heating according to the self-return air temperature, and the plurality of air conditioners operate independently. Because each air conditioner independently operates, the temperature nonuniformity of the environment in the battery compartment is easily caused, and the temperature difference of the battery cell in the battery compartment is increased. And because the air conditioner judges and controls according to the return air temperature by oneself, do not consider the actual operating temperature of electric core in the battery compartment, because the nonconformity of electric core temperature and ambient temperature, produce easily and overshoot or the maladjustment to the temperature, can not realize the accurate control to electric core temperature. In the self-consumption of the energy storage system, the air conditioner occupies more than 80%, so that the meaning of reducing the power consumption needs to be realized by adopting a reasonable control scheme.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first object of the present invention is to provide a method for controlling temperature of battery cells in a battery compartment, which can accurately control temperature of the battery cells, reduce temperature difference between the battery cells in the battery compartment, and reduce operation energy consumption of an air conditioner.

Two objectives of the present invention are to provide a computer readable storage medium.

Three objects of the present invention are to provide a battery management system.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a method for controlling temperature of a cell in a battery compartment, where the method includes the following steps: acquiring a refrigeration set temperature and a heating set temperature of an air conditioner in a battery compartment, and calculating a reference temperature according to the refrigeration set temperature and the heating set temperature; acquiring the real-time temperature of each battery cell, determining the maximum battery cell temperature and the minimum battery cell temperature according to the real-time temperature of each battery cell, and calculating the comprehensive temperature of the battery cell according to the maximum battery cell temperature, the minimum battery cell temperature and the reference temperature; and controlling each air conditioner in the battery cabin according to the comprehensive temperature of the battery core.

The temperature control method of the embodiment of the invention firstly obtains the refrigeration set temperature and the heating set temperature of the air conditioner in the battery compartment, and then calculates the reference temperature according to the obtained refrigeration set temperature and the heating set temperature; and then acquiring the real-time temperature of each battery cell, determining the maximum battery cell temperature and the minimum battery cell temperature according to the real-time temperature of each battery cell, calculating the comprehensive temperature of the battery cell according to the maximum battery cell temperature, the minimum battery cell temperature and the reference temperature, and controlling each air conditioner in the battery cabin by using the calculated comprehensive temperature of the battery cell. Therefore, the temperature control method can accurately control the temperature of the battery cells, reduce the temperature difference among the battery cells in the battery cabin and reduce energy consumption.

In some examples of the present invention, calculating a cell integrated temperature from the heating setting temperature, the maximum cell temperature, the minimum cell temperature, and the reference temperature includes: calculating a weight value according to the maximum cell temperature, the heating set temperature and the reference temperature; and calculating the comprehensive temperature of the battery cell according to the maximum battery cell temperature, the minimum battery cell temperature and the weighted value.

In some examples of the invention, the reference temperature is calculated according to the following formula: t0 ═ Tsc-Tsh)/2 + Tsh, where T0 is the reference temperature, Tsc is the cooling set temperature, and Tsh is the heating set temperature; the weight value is calculated according to the following formula: q is (Tmax-T0)/(T0-Tsh), where q is the weight value and Tmax is the maximum cell temperature; the integrated temperature is calculated according to the following formula: t ═ Tmax q + Tmin × (1-q), where T is the integrated temperature and Tmin is the minimum cell temperature.

In some examples of the present invention, controlling each air conditioner in the battery compartment according to the cell integrated temperature includes: when the comprehensive temperature is determined to be higher than the refrigeration set temperature, controlling each air conditioner to perform refrigeration operation; and in the process of refrigerating operation of each air conditioner, when the comprehensive temperature falls back to the difference between the refrigerating set temperature and the preset refrigerating temperature return difference value, controlling each air conditioner to stop refrigerating.

In some examples of the present invention, controlling each air conditioner in the battery compartment according to the cell integrated temperature includes: when the comprehensive temperature is determined to be lower than the heating set temperature, controlling each air conditioner to perform heating operation; and in the process of heating operation of each air conditioner, when the comprehensive temperature is determined to rise to the sum of the heating set temperature and the preset heating temperature return difference value, controlling each air conditioner to stop heating.

In some examples of the invention, a plurality of clusters of batteries are arranged in the battery cabin, wherein the intra-cluster temperature difference of each cluster of batteries is calculated according to the maximum cell temperature and the minimum cell temperature of each cluster of batteries, and the maximum intra-cluster temperature difference is determined according to the intra-cluster temperature difference of each cluster of batteries; and determining whether the battery is in a standing state at present, and controlling the fan of each air conditioner according to the maximum in-cluster temperature difference when the battery is in the standing state at present.

In some examples of the present invention, controlling the fan of each air conditioner according to the maximum intra-cluster temperature difference includes: judging whether the maximum cluster internal temperature difference is larger than a preset maximum temperature difference or not, and controlling a fan of each air conditioner to be started when the maximum cluster internal temperature difference is larger than the preset maximum temperature difference; and in the running process of the fan of each air conditioner, when the temperature difference in the maximum cluster falls to the difference between the preset maximum temperature difference and the set temperature difference value, controlling the fan of each air conditioner to be closed.

In some examples of the present invention, the method for controlling temperature of the battery cells in the battery compartment further includes: acquiring humidity values of a plurality of environmental humidity acquisition points in the battery compartment, and calculating the average humidity of the humidity values; judging whether the average humidity is greater than a set humidity or not, and controlling the dehumidification operation of each air conditioner when the average humidity is determined to be greater than the set humidity; and in the process of dehumidifying operation of each air conditioner, when the average humidity falls to the difference between the set humidity and the preset humidity return difference value, controlling each air conditioner to stop dehumidifying.

In order to achieve the above object, a second aspect of the present invention provides a computer-readable storage medium, on which a battery compartment cell temperature control program is stored, where the battery compartment cell temperature control program, when executed by a processor, implements the battery compartment cell temperature control method according to the above embodiment.

According to the computer-readable storage medium of the embodiment of the present invention, when the processor executes the temperature control program of the battery cells in the battery compartment stored in the storage medium, the temperature control method of the battery cells in the battery compartment in the above-described embodiment is implemented, so that the temperature of the battery cells can be accurately controlled, the temperature difference between the battery cells in the battery compartment can be reduced, and the energy consumption can be reduced at the same time.

In order to achieve the above object, a battery management system according to a third aspect of the present invention is provided, where the system includes a memory, a processor, and a battery compartment cell temperature control program stored in the memory and executable on the processor, and when the processor executes the battery compartment cell temperature control program, the battery compartment cell temperature control method according to the above embodiment is implemented.

According to the battery management system provided by the embodiment of the invention, when the processor executes the battery cell temperature control program stored in the memory, the battery cell temperature control method in the battery cabin is realized, so that the temperature of the battery cell can be accurately controlled, the temperature difference between the battery cells in the battery cabin is reduced, and the energy consumption can be reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to a first embodiment of the present invention;

fig. 3 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to a second embodiment of the present invention;

fig. 4 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to a third embodiment of the present invention;

fig. 5 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to a fourth embodiment of the present invention;

fig. 6 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to a fourth embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A method for controlling temperature of a battery cell in a battery compartment, a storage medium, and a battery management system according to embodiments of the present invention are described below with reference to the accompanying drawings.

Fig. 1 is a flowchart of a method for controlling temperature of battery cells in a battery compartment according to an embodiment of the present invention.

As shown in fig. 1, the method for controlling the temperature of the battery cells in the battery compartment includes the following steps:

and S10, acquiring the cooling set temperature and the heating set temperature of the air conditioner in the battery compartment, and calculating the reference temperature according to the cooling set temperature and the heating set temperature.

It should be noted that the battery compartment may include a plurality of battery cells, and each battery cell may be temperature-conditioned and humidity-conditioned by a corresponding air conditioner. In this embodiment, a refrigeration set temperature and a heating set temperature of an air conditioner in a battery compartment are first obtained, and it can be understood that the refrigeration set temperature of the air conditioner indicates that the air conditioner needs to be controlled to perform refrigeration when the temperature of a battery cell reaches the refrigeration set temperature; similarly, the heating set temperature of the air conditioner means that when the temperature of the battery cell reaches the heating set temperature, the air conditioner needs to be controlled to perform heating. It should be noted that the refrigeration set temperature and the heating set temperature of the air conditioner can be obtained by analyzing the multiple working data of the battery cell in the battery compartment.

After the cooling set temperature and the heating set temperature of the air conditioner are obtained, the reference temperature is calculated according to the cooling set temperature and the heating set temperature.

Specifically, in some embodiments, the reference temperature is calculated as T0 ═ (Tsc-Tsh)/2 + Tsh, where T0 is the reference temperature, Tsc is the cooling set temperature, and Tsh is the heating set temperature;

for example, if the cooling set temperature Tsc is 25 ℃ and the heating set temperature Tsh is 15 ℃, the reference temperature T0 is 20 ℃ calculated according to the above formula.

And S20, acquiring the real-time temperature of each battery cell, determining the maximum battery cell temperature and the minimum battery cell temperature according to the real-time temperature of each battery cell, and calculating the comprehensive battery cell temperature according to the maximum battery cell temperature, the minimum battery cell temperature and the reference temperature.

And S30, controlling each air conditioner in the battery compartment according to the comprehensive temperature of the battery cell.

Specifically, after the reference temperature is obtained through calculation, the real-time temperature of each battery cell is obtained, and then a maximum battery cell temperature and a minimum battery cell temperature are determined from the real-time temperatures of the battery cells. It should be noted that the heat generated by each battery cell in the battery compartment during the operation process is not consistent, so the real-time temperatures of the battery cells are different, and a maximum battery cell temperature and a minimum battery cell temperature can be obtained. After the maximum cell temperature and the minimum cell temperature are obtained, the cell comprehensive temperature can be calculated according to the maximum cell temperature, the minimum cell temperature and the calculated reference temperature, and then the air-conditioning is controlled according to the calculated cell comprehensive temperature.

In some embodiments, calculating the integrated cell temperature according to the heating set temperature, the maximum cell temperature, the minimum cell temperature, and the reference temperature includes: calculating a weight value according to the maximum cell temperature, the heating set temperature and the reference temperature; and calculating the comprehensive temperature of the battery cell according to the maximum battery cell temperature, the minimum battery cell temperature and the weighted value.

Specifically, in this embodiment, the weight value may be calculated according to the maximum cell temperature, the heating setting temperature, and the reference temperature, and more specifically, the weight value may be calculated according to the following formula: and q is (Tmax-T0)/(T0-Tsh), where q is a weight value, Tmax is a maximum cell temperature, T0 is a reference temperature, and Tsh is a heating set temperature. After the weighted value is obtained through calculation, the comprehensive temperature of the battery cell may be further calculated according to the weighted value, the maximum battery cell temperature, and the minimum battery cell temperature, specifically, the comprehensive temperature of the battery cell may be calculated according to the following formula: t ═ Tmax × q + Tmin × (1-q), where T is the integrated cell temperature, Tmax is the maximum cell temperature, Tmin is the minimum cell temperature, and q is the weight value.

In some embodiments of the present invention, as shown in fig. 2, when the integrated temperature is greater than the preset cooling temperature, controlling each air conditioner in the battery compartment according to the integrated cell temperature includes: s101, controlling each air conditioner to perform refrigeration operation when the comprehensive temperature is determined to be higher than the refrigeration set temperature; and S102, in the process of refrigerating operation of each air conditioner, when the comprehensive temperature falls back to the difference between the refrigerating set temperature and the preset refrigerating temperature return difference value, controlling each air conditioner to stop refrigerating.

Specifically, after the comprehensive temperature of the battery cell is obtained through the calculation formula of the above embodiment, the comprehensive temperature is compared with the refrigeration set temperature, and when the comprehensive temperature is greater than the refrigeration set temperature, each air conditioner is controlled to perform refrigeration operation. According to the comprehensive temperature calculation formula T ═ Tmax × + Tmin × (1-q), during the cooling operation of each air conditioner, the maximum cell temperature Tmax and the weight value q both gradually decrease, so the comprehensive temperature decreases. In this embodiment, when the air conditioner operates in the cooling mode, the integrated temperature of the battery core may be detected in real time and determined, and optionally, the integrated temperature may be determined once every preset time, where the preset time may be set by a user, for example, 5 seconds. And when the difference between the comprehensive temperature falling to the refrigeration set temperature and the preset refrigeration temperature returning value is obtained through judgment, controlling each air conditioner to stop refrigeration. It should be noted that the preset cooling temperature return difference value may be set by a user, and it can be understood that the operation of the air conditioner can be more accurately controlled by the preset cooling temperature return difference value.

In some embodiments of the present invention, as shown in fig. 3, when the integrated temperature is less than the preset heating temperature, controlling each air conditioner in the battery compartment according to the integrated cell temperature includes: s201, when the comprehensive temperature is determined to be lower than the heating set temperature, controlling each air conditioner to perform heating operation; s202, in the process of heating operation of each air conditioner, when the integrated temperature is determined to rise to the sum of the heating set temperature and the preset heating temperature return difference value, each air conditioner is controlled to stop heating.

Specifically, after the comprehensive temperature of the battery cell is obtained through the calculation formula of the above embodiment, the comprehensive temperature is compared with the heating set temperature, and when the comprehensive temperature is less than the heating set temperature, the heating operation of each air conditioner is controlled. More specifically, as can be seen from the integrated temperature calculation formula T ═ Tmax + Tmin × (1-q), during each air conditioner heating operation, since the maximum cell temperature Tmax and the weight value q both gradually increase, the integrated temperature increases. In this embodiment, when the air conditioner operates in the heating mode, the integrated temperature of the battery core may be detected in real time to determine the integrated temperature, and optionally, the integrated temperature may be determined once every preset time, where the preset time may be set by a user, for example, 5 seconds. And when the comprehensive temperature is judged to be increased to the sum of the heating set temperature and the preset heating temperature return difference value, controlling each air conditioner to stop heating. It should be noted that the preset heating temperature return difference value may be set by a person, and it can be understood that the operation of the air conditioner can be more accurately controlled by the preset heating temperature return difference value.

In some embodiments of the present invention, as shown in fig. 4, the controller dehumidifying the battery compartment includes the steps of: s301, acquiring humidity values of a plurality of environment humidity acquisition points in the battery compartment, and calculating the average humidity of the humidity values; s302, judging whether the average humidity is greater than the set humidity or not, and controlling the dehumidification operation of each air conditioner when the average humidity is determined to be greater than the set humidity; and S303, controlling each air conditioner to stop dehumidifying when the average humidity falls to the difference between the set humidity and the preset humidity return difference value in the dehumidifying operation process of each air conditioner.

Specifically, in this embodiment, the air conditioner may also handle humidity within the battery compartment. As shown in fig. 4, first acquiring humidity values of a plurality of ambient humidity collection points in the battery compartment and calculating an average humidity of the plurality of humidity values, it can be understood that the ambient humidity collection points can be uniformly distributed in the battery compartment. After the average humidity of a plurality of humidity values is calculated, the average humidity is judged, and when the average humidity is greater than the set humidity, the dehumidification operation of each air conditioner is controlled. In this embodiment, when the air conditioner operates in the dehumidification mode, the average humidity in the battery compartment may be detected in real time and determined, and optionally, the average humidity may be determined once every preset time, where the preset time may be set by a person, for example, 5 seconds. And when the average humidity is judged to be reduced to the difference between the set humidity and the preset humidity return difference value, controlling each air conditioner to stop dehumidifying. It should be noted that the preset humidity return difference value may be set by a person, and it can be understood that the operation of the air conditioner can be more accurately controlled by the preset humidity return difference value.

In some embodiments of the present invention, a plurality of clusters of batteries are disposed in the battery compartment, wherein, as shown in fig. 5, the fan control of the air conditioner comprises the following steps: s401, calculating the intra-cluster temperature difference of each cluster of batteries according to the maximum cell temperature and the minimum cell temperature of each cluster of batteries, and determining the maximum intra-cluster temperature difference according to the intra-cluster temperature difference of each cluster of batteries; s402, determining whether the battery is in a standing state at present, and controlling the fan of each air conditioner according to the maximum temperature difference in the cluster when the battery is in the standing state at present.

Specifically, the battery compartment is generally configured with a plurality of clusters of batteries, and it can be understood that the temperature of each cluster of batteries is not completely consistent in the working process, that is, a temperature difference exists in each cluster of batteries. It will be appreciated that the battery has three states of charge, discharge and rest, and in this embodiment, the fan of each air conditioner is controlled according to the maximum in-cluster temperature difference when the battery is currently in the rest state.

In this embodiment, as shown in fig. 6, controlling the fan of each air conditioner according to the maximum intra-cluster temperature difference includes: s403, judging whether the maximum cluster internal temperature difference is larger than a preset maximum temperature difference or not, and controlling the fan of each air conditioner to be started when the maximum cluster internal temperature difference is larger than the preset maximum temperature difference; s404, in the running process of the fan of each air conditioner, when the maximum temperature difference in the cluster falls to the difference between the preset maximum temperature difference and the set temperature difference value, the fan of each air conditioner is controlled to be turned off.

Specifically, when the battery is in a standing state, the maximum in-cluster temperature difference and a preset maximum difference value can be judged, and when the maximum in-cluster temperature difference is larger than the preset maximum temperature difference, the fan of each air conditioner is controlled to be turned on. In this embodiment, when the air conditioner starts the fan to operate, the maximum intra-cluster temperature difference can be detected in real time and judged, and optionally, the maximum intra-cluster temperature difference is judged once every preset time, where the preset time can be set by a user, such as 5 seconds. And when the maximum cluster internal temperature difference is judged to fall back to the difference between the preset maximum temperature difference and the set temperature difference value, controlling the fan of each air conditioner to be turned off. It should be noted that the set temperature difference value may be set by a user, and it can be understood that the operation of the fan of the air conditioner can be more accurately controlled by the set temperature difference value.

It should be noted that, the preset value and the set value in the above embodiments may be set by people, and optionally, people may obtain the preset value and the set value through multiple tests or simulation tests.

In summary, the temperature control method for the battery cells in the battery compartment in the embodiment of the invention can accurately control the temperature of the battery cells, reduce the temperature difference between the battery cells in the battery compartment, and reduce energy consumption.

Further, the present invention provides a computer-readable storage medium, on which a battery compartment cell temperature control program is stored, where the battery compartment cell temperature control program, when executed by a processor, implements the battery compartment cell temperature control method in the above embodiments.

When the battery compartment electric core temperature control program corresponding to the battery compartment electric core temperature control method stored in the computer readable storage medium of the embodiment of the invention is executed, the temperature of the electric core can be accurately controlled, the temperature difference between the electric cores in the battery compartment can be reduced, and the energy consumption can be reduced.

Further, the present invention provides a battery management system, which includes a memory, a processor, and a battery compartment cell temperature control program stored in the memory and executable on the processor, where when the processor executes the battery compartment cell temperature control program, the battery compartment cell temperature control method in the foregoing embodiment is implemented.

The battery management system of the embodiment of the invention can accurately control the temperature of the battery cell, reduce the temperature difference between the battery cells in the battery compartment and simultaneously reduce the energy consumption when the battery cell temperature control program in the battery compartment, which is stored in the memory and corresponds to the battery cell temperature control method in the battery compartment, is executed.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (8)

Translated fromChinese

1.一种电池舱内电芯温控方法，其特征在于，包括以下步骤：1. A battery cell temperature control method in a battery compartment, characterized in that, comprising the following steps:获取电池舱内空调器的制冷设定温度和制热设定温度，并根据所述制冷设定温度和制热设定温度计算基准温度；Obtain the cooling set temperature and the heating set temperature of the air conditioner in the battery compartment, and calculate the reference temperature according to the cooling set temperature and the heating set temperature;获取每个电芯的实时温度，并根据所述每个电芯的实时温度确定最大电芯温度和最小电芯温度，以及根据所述最大电芯温度、所述最小电芯温度和所述基准温度计算电芯综合温度；Obtain the real-time temperature of each cell, and determine the maximum cell temperature and the minimum cell temperature according to the real-time temperature of each cell, and determine the maximum cell temperature and the minimum cell temperature according to the maximum cell temperature, the minimum cell temperature, and the reference Temperature calculation cell comprehensive temperature;根据所述电芯综合温度对所述电池舱内的每个空调器进行控制；Controlling each air conditioner in the battery compartment according to the integrated temperature of the battery cells;其中，根据所述制热设定温度、所述最大电芯温度、所述最小电芯温度和所述基准温度计算电芯综合温度，包括：Wherein, calculating the comprehensive cell temperature according to the heating set temperature, the maximum cell temperature, the minimum cell temperature and the reference temperature, including:根据所述最大电芯温度、所述制热设定温度和所述基准温度计算权重值；Calculate the weight value according to the maximum cell temperature, the heating set temperature and the reference temperature;根据所述最大电芯温度、所述最小电芯温度和所述权重值计算所述电芯综合温度；Calculate the comprehensive cell temperature according to the maximum cell temperature, the minimum cell temperature and the weight value;所述基准温度根据以下公式计算：The reference temperature is calculated according to the following formula:T0＝(Tsc–Tsh)/2+Tsh，其中，T0为所述基准温度，Tsc为所述制冷设定温度，Tsh为所述制热设定温度；T0=(Tsc−Tsh)/2+Tsh, where T0 is the reference temperature, Tsc is the cooling set temperature, and Tsh is the heating set temperature;所述权重值根据以下公式计算：The weight value is calculated according to the following formula:q＝(Tmax-T0)/(T0-Tsh)，其中，q为所述权重值，Tmax为所述最大电芯温度；q=(Tmax-T0)/(T0-Tsh), where q is the weight value, and Tmax is the maximum cell temperature;所述综合温度根据以下公式计算：The comprehensive temperature is calculated according to the following formula:T＝Tmax*q+Tmin*(1-q)，其中，T为所述综合温度，Tmin为所述最小电芯温度。T=Tmax*q+Tmin*(1-q), where T is the comprehensive temperature, and Tmin is the minimum cell temperature.2.如权利要求1所述的电池舱内电芯温控方法，其特征在于，根据所述电芯综合温度对所述电池舱内的每个空调器进行控制，包括：2 . The temperature control method for cells in a battery compartment according to claim 1 , wherein controlling each air conditioner in the battery compartment according to the comprehensive temperature of the cells, comprising: 2 .确定所述综合温度大于所述制冷设定温度时，控制每个空调器制冷运行；When it is determined that the comprehensive temperature is greater than the cooling set temperature, control the cooling operation of each air conditioner;在每个空调器制冷运行的过程中，确定所述综合温度回落至所述制冷设定温度与预设的制冷温度回差值之差时，控制每个空调器停止制冷。During the cooling operation of each air conditioner, when it is determined that the comprehensive temperature falls back to the difference between the cooling set temperature and the preset cooling temperature return difference, each air conditioner is controlled to stop cooling.3.如权利要求1所述的电池舱内电芯温控方法，其特征在于，根据所述电芯综合温度对所述电池舱内的每个空调器进行控制，包括：3 . The temperature control method for cells in a battery compartment according to claim 1 , wherein controlling each air conditioner in the battery compartment according to the comprehensive temperature of the cells, comprising: 3 .确定所述综合温度小于所述制热设定温度时，控制每个空调器制热运行；When it is determined that the comprehensive temperature is less than the heating set temperature, control the heating operation of each air conditioner;在每个空调器制热运行的过程中，确定所述综合温度上升至所述制热设定温度与预设的制热温度回差值之和时，控制每个空调器停止制热。During the heating operation of each air conditioner, when it is determined that the comprehensive temperature rises to the sum of the heating set temperature and the preset heating temperature return difference, each air conditioner is controlled to stop heating.4.如权利要求1所述的电池舱内电芯温控方法，其特征在于，所述电池舱内设置多簇电池，其中，4 . The temperature control method for cells in a battery compartment according to claim 1 , wherein multiple clusters of batteries are arranged in the battery compartment, wherein: 5 .根据每簇电池中的最大电芯温度和最小电芯温度计算每簇电池的簇内温差，并根据每簇电池的簇内温差确定最大簇内温差；Calculate the intra-cluster temperature difference of each cluster of batteries according to the maximum cell temperature and the minimum cell temperature in each cluster, and determine the maximum intra-cluster temperature difference according to the intra-cluster temperature difference of each cluster of batteries;确定电池当前是否处于静置状态，并在所述电池当前处于静置状态时，根据所述最大簇内温差对每个空调器的风机进行控制。It is determined whether the battery is currently in a stationary state, and when the battery is currently in a stationary state, the fan of each air conditioner is controlled according to the maximum temperature difference within the cluster.5.如权利要求4所述的电池舱内电芯温控方法，其特征在于，根据所述最大簇内温差对每个空调器的风机进行控制，包括：5 . The temperature control method for cells in a battery compartment according to claim 4 , wherein, controlling the fan of each air conditioner according to the maximum temperature difference in the cluster, comprising: 6 .判断所述最大簇内温差是否大于预设的最大温差，并在所述最大簇内温差大于预设的最大温差时控制每个空调器的风机开启；Judging whether the maximum temperature difference within the cluster is greater than a preset maximum temperature difference, and controlling the fan of each air conditioner to turn on when the maximum temperature difference within the cluster is greater than the preset maximum temperature difference;在每个空调器的风机运行过程中，确定所述最大簇内温差回落至所述预设的最大温差与设定的温差回差值之差时，控制每个空调器的风机关闭。During the operation of the fan of each air conditioner, when it is determined that the maximum intra-cluster temperature difference falls back to the difference between the preset maximum temperature difference and the set temperature difference hysteresis value, the fan of each air conditioner is controlled to be turned off.6.如权利要求1所述的电池舱内电芯温控方法，其特征在于，还包括：6. The temperature control method for cells in a battery compartment according to claim 1, further comprising:获取所述电池舱内多个环境湿度采集点的湿度值，并计算多个湿度值的平均湿度；Acquire the humidity values of multiple ambient humidity collection points in the battery compartment, and calculate the average humidity of the multiple humidity values;判断所述平均湿度是否大于设定湿度，并在确定所述平均湿度大于所述设定湿度时，控制每个空调器除湿运行；Judging whether the average humidity is greater than the set humidity, and when it is determined that the average humidity is greater than the set humidity, controlling each air conditioner to dehumidify operation;在每个空调器除湿运行的过程中，确定所述平均湿度回落至所述设定湿度与预设的湿度回差值之差时，控制每个空调器停止除湿。During the dehumidification operation of each air conditioner, when it is determined that the average humidity falls back to the difference between the set humidity and a preset humidity return difference, each air conditioner is controlled to stop dehumidification.7.一种计算机可读存储介质，其特征在于，其上存储有电池舱内电芯温控程序，该电池舱内电芯温控程序被处理器执行时实现如权利要求1-6中任一项所述的电池舱内电芯温控方法。7. A computer-readable storage medium, characterized in that a temperature control program for cells in a battery compartment is stored thereon, and when the temperature control program for cells in the battery compartment is executed by a processor, any one of claims 1-6 is implemented. A method for controlling the temperature of cells in a battery compartment.8.一种电池管理系统，其特征在于，包括存储器、处理器及存储在存储器上并可在处理器上运行的电池舱内电芯温控程序，所述处理器执行所述电池舱内电芯温控程序时，实现如权利要求1-6中任一项所述的电池舱内电芯温控方法。8. A battery management system, characterized in that it comprises a memory, a processor, and a temperature control program for cells in a battery compartment that is stored in the memory and can run on the processor, and the processor executes the battery in the battery compartment. When the core temperature control program is executed, the temperature control method for the battery cells in the battery compartment according to any one of claims 1-6 is realized.

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