CN112524073A - Fan speed regulation control method, device, equipment and storage medium - Google Patents
Fan speed regulation control method, device, equipment and storage medium Download PDFInfo
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- CN112524073A CN112524073A CN202011214397.6A CN202011214397A CN112524073A CN 112524073 A CN112524073 A CN 112524073A CN 202011214397 A CN202011214397 A CN 202011214397A CN 112524073 A CN112524073 A CN 112524073A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5038—Heating or cooling of cells or batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a fan speed regulation control method, device, equipment and storage medium, and belongs to the technical field of fan speed regulation. The fan speed regulation control method comprises the following steps: acquiring temperature information of each battery module; calculating a second temperature value according to the first temperature value of each piece of temperature information; comparing the magnitude relation of each first temperature value and each second temperature value; carrying out temperature partitioning on each battery module according to the magnitude relation between each first temperature value and each second temperature value to obtain at least two temperature areas; the duty ratio of the fan of each battery module is determined according to the at least two temperature regions. According to the fan speed regulation control method, the air quantity of the modules is regulated by changing the rotating speed of the fan, so that temperature difference among the battery modules is regulated, and the working stability of the battery modules is improved.
Description
Technical Field
The invention relates to the technical field of fan speed regulation, in particular to a fan speed regulation control method, device, equipment and storage medium.
Background
The mode that can adopt the increase fan to adjust the difference in temperature between each battery module among the battery module usually, and does not have the method of carrying out speed governing control to the fan at present, influences battery module's job stabilization nature, consequently, how to control the fan speed governing to the realization is adjusted the difference in temperature between each battery module, has become the problem that awaits a urgent need to solve.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a fan speed regulation control method which can change the rotating speed of a fan and adjust the air quantity of the modules, thereby realizing temperature difference adjustment among the battery modules and improving the working stability of the battery modules.
The invention also provides a fan speed regulation control device with the fan speed regulation control method.
The invention also provides fan speed regulation control equipment with the fan speed regulation control method.
The invention also provides a computer readable storage medium with the fan speed regulation control method.
According to the fan speed regulation control method of the embodiment of the first aspect of the invention, the method comprises the following steps:
acquiring temperature information of each battery module;
calculating a second temperature value according to the first temperature value of each piece of temperature information;
comparing the magnitude relation of each first temperature value and each second temperature value;
carrying out temperature partitioning on each battery module according to the magnitude relation between each first temperature value and each second temperature value to obtain at least two temperature areas;
and determining the duty ratio of the fan of each battery module according to the at least two temperature areas.
The fan speed regulation control method provided by the embodiment of the invention at least has the following beneficial effects: according to the fan speed regulation control method, each battery module is subjected to temperature partition, the fan duty ratio corresponding to the battery module is determined according to the temperature area where each battery module is located, the fan rotating speed of each battery module is different according to the different fan duty ratios, and the air volume of each battery module is also different, so that the air volume of the battery modules is regulated by changing the rotating speed of the fan, the temperature difference among the battery modules is regulated, and the working stability of the battery modules is improved.
According to some embodiments of the present invention, the acquiring temperature information of each battery module includes:
acquiring temperature information of a plurality of batteries in each battery module to obtain a plurality of battery temperature values;
and calculating the average value of the plurality of battery temperature values to obtain a plurality of first temperature values.
According to some embodiments of the invention, the calculating a second temperature value according to the first temperature value of each of the temperature information comprises:
and calculating the average value of all the first temperature values to obtain the second temperature value.
According to some embodiments of the invention, the comparing the magnitude relationship of each of the first temperature values and the second temperature values comprises:
and carrying out difference processing on the second temperature value and each first temperature value to obtain a plurality of difference values.
According to some embodiments of the present invention, the temperature partitioning of each battery module according to the magnitude relationship between each first temperature value and each second temperature value to obtain at least two temperature regions includes:
setting a first predetermined rule for determining a relationship between the magnitude relationship and the temperature zones;
and carrying out temperature partitioning on each battery module according to the size relation and the first preset rule to obtain at least two temperature areas.
According to some embodiments of the invention, the determining the fan duty ratio of each of the battery modules according to the at least two temperature regions comprises:
setting a second predetermined rule for determining a relationship between the at least two temperature zones and the fan duty cycle;
and setting the duty ratio of the fan of each battery module according to the at least two temperature areas and the second preset rule.
According to some embodiments of the invention, after determining the fan duty ratio of each battery module according to the at least two temperature regions, the method further comprises:
and repeating the fan speed regulation control method after the preset time, and updating the fan duty ratio of each battery module.
According to a second aspect of the invention, a fan speed control device comprises:
the first acquisition module is used for acquiring the temperature information of each battery module;
the second acquisition module is used for calculating a second temperature value according to the first temperature value of each piece of temperature information;
the comparison module is used for comparing the magnitude relation between each first temperature value and each second temperature value;
the first processing module is used for carrying out temperature partitioning on each battery module according to the magnitude relation between each first temperature value and each second temperature value to obtain at least two temperature areas;
and the second processing module is used for determining the duty ratio of the fan of each battery module according to the at least two temperature areas.
The fan speed regulation control device provided by the embodiment of the invention at least has the following beneficial effects: according to the fan speed regulation control device, the temperature partition is carried out on each battery module, the fan duty ratio corresponding to the battery module is determined according to the temperature area where each battery module is located, the fan rotating speed of each battery module is different according to the difference of the fan duty ratio, the air volume of each battery module is also different, and the air volume of each battery module is regulated by changing the rotating speed of the fan, so that the temperature difference among the battery modules is regulated, and the working stability of the battery modules is improved.
A fan speed control apparatus according to an embodiment of a third aspect of the present invention includes:
at least one processor, and,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions, and the instructions are executed by the at least one processor, so that the at least one processor implements the fan speed control method according to the embodiment of the first aspect when executing the instructions.
The fan speed regulation control equipment provided by the embodiment of the invention at least has the following beneficial effects: according to the fan speed regulation control equipment, by adopting the fan speed regulation control method of the embodiment of the first aspect, each battery module is subjected to temperature partition, the fan duty ratio corresponding to the battery module is determined according to the temperature area where each battery module is located, the fan rotating speed of each battery module is different according to the difference of the fan duty ratios, and the air volume of each battery module is also different, so that the air volume of each battery module is adjusted by changing the rotating speed of the fan, the temperature difference adjustment among the battery modules is realized, and the working stability of the battery modules is improved.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the fan speed control method according to the first aspect.
The computer-readable storage medium according to the embodiment of the invention has at least the following advantages: by adopting the fan speed regulation control method of the embodiment of the first aspect, the computer readable storage medium determines the fan duty ratio corresponding to each battery module according to the temperature region where each battery module is located by carrying out temperature partition on each battery module, and the fan rotating speed of each battery module is different and the air volume of each battery module is also different according to the difference of the fan duty ratios, so that the air volume of each battery module is adjusted by changing the rotating speed of the fan, thereby realizing temperature difference adjustment among the battery modules and improving the working stability of the battery modules.
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
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a flow chart of a fan speed control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a fan speed control method according to another embodiment of the present invention;
FIG. 3 is a flow chart of a fan speed control method according to another embodiment of the present invention;
FIG. 4 is a flow chart of a fan speed control method according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fan speed regulation control device according to an embodiment of the present invention.
Reference numerals: 510. a first acquisition module; 520. a second acquisition module; 530. a comparison module; 540. a first processing module; 550. a second processing module; 560. and a circulation module.
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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means 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 present 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 a first aspect, referring to fig. 1, a method for controlling speed regulation of a fan according to an embodiment of the present invention includes:
s100, acquiring temperature information of each battery module;
s200, calculating a second temperature value according to the first temperature value of each piece of temperature information;
s300, comparing the magnitude relation of each first temperature value and each second temperature value;
s400, carrying out temperature partitioning on each battery module according to the magnitude relation between each first temperature value and each second temperature value to obtain at least two temperature areas;
and S500, determining the duty ratio of the fan of each battery module according to the at least two temperature areas.
In the process of controlling the speed of the fan, the temperature information of each battery module is firstly acquired, and a plurality of first temperature values T corresponding to each battery module are acquired1Through the series of first temperature values T1Calculating to obtain a second temperature value T2The second temperature value T2 is used as a temperature value corresponding to the whole system, and the magnitude relationship between each first temperature value T1 and each second temperature value T2 is compared, so that the temperature difference condition between each battery module and the whole system can be clearly reflected according to the magnitude relationship between each first temperature value T1 and each second temperature value T2, and each battery module is subjected to temperature partitioning according to the magnitude relationships, it can be understood that the temperature difference condition between each battery module and the whole system reflected according to the magnitude relationship between each first temperature value T1 and each second temperature value T2 can carry out temperature partitioning on the series of battery modules to obtain at least two temperature areas, for example, a temperature difference threshold value d is set0According to the magnitude relation and the temperature difference threshold value d0The relationship between them divides the series of battery modules into a normal region, a high temperature region, and a low temperature region. And then determine the corresponding fan duty ratio according to the temperature area to which each battery module belongs, and set the fan duty ratio of the battery module, for example, set the temperature area into a normal area, a high temperature area, and a low temperature area, the fan duty ratio of each temperature area is a certain preset value, when the temperature difference value between one battery module and the whole system meets the requirement of the low temperature area through the comparison result, divide the battery module into the low temperature area, and set the fan duty ratio of the battery module according to the fan duty ratio corresponding to the low temperature area, it should be understood that, when the battery module is in the low temperature area, the fan duty ratio is smaller, the air volume of the battery module is also relatively smaller, and the battery module in the high temperature area, the fan duty ratio thereof is setPut great, the amount of wind of battery module also can increase, consequently, according to the difference of fan duty cycle, the fan rotational speed of every battery module is different, and the amount of wind of every battery module is also different, and through the rotational speed that changes the fan, adjust the battery module amount of wind like this to realize the difference in temperature between each battery module and adjust, improved the job stabilization nature of battery module.
Referring to fig. 2, in some embodiments, the step S100 of acquiring temperature information of each battery module includes:
s101, collecting temperature information of a plurality of batteries in each battery module to obtain a plurality of battery temperature values;
s102, calculating an average value of the temperature values of the batteries to obtain a plurality of first temperature values.
Obtaining a plurality of electric core temperature values by acquiring the electric core temperature information of a plurality of batteries in each battery module, calculating the series of electric core temperature values to obtain an average value, and taking the average value as the first temperature value T of the battery module1It can be understood that when all the electric core temperature values in each battery module are collected to calculate the average value, the first temperature value T1The average temperature value is the average temperature value of the battery module. Thus, the first temperature value T of the battery module can be ensured1The accuracy of (2).
In some other specific embodiments, in order to improve the data acquisition efficiency, a plurality of batteries in the battery module may also be sampled, the electric core temperature values of the plurality of batteries in the sample are acquired, then the average value of the plurality of electric core temperature values in the sample is obtained, and the average value is used as the first temperature value T of the battery module1Therefore, the data acquisition efficiency can be improved, and the time can be saved.
In other specific embodiments, in order to simplify the calculation, all the cell temperature values in each battery module may be collected, and the maximum cell temperature value or the minimum cell temperature value may be used as the first temperature value T1Thus, the calculation can be simplified and the time can be saved.
In some embodiments, the step S200 of calculating the second temperature value according to the first temperature value of each temperature information includes:
s201, calculating the average value of all the first temperature values to obtain a second temperature value.
By obtaining the first temperature value T of each battery module1The series of first temperature values T1Calculating to obtain an average value, and taking the average value as the second temperature value T2I.e. the second temperature value T2The average temperature value of the whole system is obtained, so that the accuracy of the average temperature value of the whole system can be ensured.
In some embodiments, the step S300 of comparing the magnitude relationship between each first temperature value and the second temperature value includes:
s301, carrying out difference processing on the second temperature value and each first temperature value to obtain a plurality of difference values.
For clearly reflecting the temperature difference between each battery module and the whole system, the second temperature value T is measured2And each first temperature value T1Performing difference processing to obtain a plurality of difference values d (i.e. d is T)2-T1) The difference d is the temperature difference between each battery module and the whole system, so that the temperature inside the whole system can be clearly obtained. For example, when for the second temperature value T2And a first temperature value T1Performing difference processing to obtain a positive difference d indicating the first temperature value T1The temperature of the corresponding battery module is lower than the average temperature of the whole system, so that the fan of the battery module can be adjusted and controlled to be in a low-rotating-speed state, the air volume of the battery module is reduced, the heat dissipation of the battery module is reduced, and the temperature of the battery module is increased to the same level as that of the whole system; when for the second temperature value T2And a first temperature value T1Performing difference processing to obtain a negative difference d, which indicates the first temperature value T1The temperature of the corresponding battery module is higher than the average temperature of the whole system, so that the fan of the battery module can be adjusted and controlled to be in a high-rotating-speed state, the air volume of the battery module is increased, the heat dissipation of the battery module is accelerated, and the temperature of the battery module is reduced to the same level as that of the whole systemAre leveled so as to be conveniently dependent on each first temperature value T1And a second temperature value T2The temperature difference condition of each battery module and the whole system reflected by the size relation is used for regulating the speed of the fan of the battery module, so that the temperature difference between the battery modules is regulated, and the working stability of the battery modules is improved.
Referring to fig. 3, in some embodiments, in step S400, the temperature partitioning is performed on each battery module according to a magnitude relationship between each first temperature value and each second temperature value, so as to obtain at least two temperature regions, including:
s401, setting a first preset rule, wherein the first preset rule is used for determining the relationship between the size relationship and the temperature partition;
s402, carrying out temperature partitioning on each battery module according to the size relation and a first preset rule to obtain at least two temperature areas.
Setting a first predetermined rule for determining the relationship between the size relationship and the temperature zones according to each first temperature value T1And a second temperature value T2The temperature difference threshold value of the series of temperature difference threshold values is correspondingly provided with a plurality of temperature partitions, so that the temperature partitions can be divided according to the temperature difference condition of the battery module, for example, a temperature difference threshold value d can be set0Taking 0 as the temperature difference threshold value, and taking the second temperature value T as the temperature difference threshold value2And a first temperature value T1Performing difference processing, and when the obtained difference value d is larger than the temperature difference threshold value, marking the corresponding temperature subarea as a low-temperature area; when for the second temperature value T2And a first temperature value T1Performing difference processing, and when the obtained difference value d is equal to the temperature difference threshold value, dividing the corresponding temperature zone into normal zones; when for the second temperature value T2And a first temperature value T1And performing difference processing, and when the obtained difference value d is smaller than the temperature difference threshold value, dividing the corresponding temperature zone into high-temperature zones. It should be noted that, a plurality of temperature difference thresholds may also be set, a plurality of temperature partitions corresponding to the temperature thresholds are set, and the corresponding relationship between the temperature difference thresholds and the temperature partitions may be set according to actual requirements, so that it is clear that the temperature difference thresholds are accurateEach battery module is divided into corresponding temperature areas, so that the duty ratio of the fan of each battery module is further adjusted, the rotating speed of the fan is increased/reduced, the heat dissipation efficiency is improved/reduced, the purpose of equalizing the temperature inside the whole system is achieved, and the working stability of the whole system is improved.
In some embodiments, the first predetermined rule includes eight temperature difference thresholds (i.e., ± 1, ± 2, ± 3, -4, -5), and 9 temperature zones are set according to the temperature difference thresholds, specifically:
when the difference d is-1 and d is less than or equal to 1, the corresponding temperature area is marked as a normal area;
when the difference d is more than 1 and less than or equal to 2, the corresponding temperature area is marked as a low temperature 1 area;
when the difference d is more than 2 and less than or equal to 3, the corresponding temperature area is marked as a low temperature 2 area;
when the difference d is d > 3, the corresponding temperature area is recorded as a low temperature 3 area;
when the difference d is more than or equal to-2 and less than-1, the corresponding temperature area is marked as a high-temperature 1 area;
when the difference d is more than or equal to-3 and less than-2, the corresponding temperature area is marked as a high-temperature area 2;
when the difference d is more than or equal to-4 and less than-3, the corresponding temperature area is marked as a high temperature 3 area;
when the difference d is more than or equal to-5 and less than-4, the corresponding temperature area is marked as a high-temperature 4 area;
when the difference d is less than or equal to-5, the corresponding temperature zone is marked as a high temperature zone 5.
Through setting up a plurality of difference in temperature threshold values like this, set up a plurality of temperature subregion that correspond with these temperature threshold values, the temperature difference threshold value can be clear like this with every battery module according to actual demand with the temperature subregion's corresponding relation and divide the temperature region that corresponds to further adjust the fan duty cycle of battery module, increase/reduce the rotational speed of fan, improve/reduce the radiating efficiency, reach the purpose to the inside samming of entire system, improve entire system's job stabilization nature.
It should be noted that specific values of the temperature thresholds may be set according to actual conditions, and the temperature thresholds and the number of the temperature partitions, and the corresponding principle of the temperature thresholds and the temperature partitions may also be set according to actual conditions, but are not limited thereto.
Referring to fig. 4, in some embodiments, the determining the fan duty ratio of each battery module according to at least two temperature regions, step S500, includes:
s501, setting a second preset rule, wherein the second preset rule is used for determining the relationship between at least two temperature areas and the duty ratio of the fan;
and S502, setting the duty ratio of the fan of each battery module according to at least two temperature areas and a second preset rule.
Setting a second preset rule used for determining the relationship between at least two temperature areas and the duty ratio of the fan, setting the duty ratios of the fans corresponding to the temperature areas according to the temperature areas, and when a second temperature value T is set2A first temperature value T of a certain battery module1And performing differential processing, dividing the battery module into corresponding temperature areas when the obtained difference d meets the requirement of a certain temperature area, and adjusting the fan duty ratio of the battery module to a corresponding value, so that each battery module can be clearly and accurately divided into corresponding temperature areas, and the fan duty ratio of the battery module is adjusted, thereby increasing/reducing the rotating speed of the fan, improving/reducing the heat dissipation efficiency, achieving the purpose of equalizing the temperature inside the whole system, and improving the working stability of the whole system.
In some specific embodiments, eight temperature difference thresholds (i.e., ± 1, ± 2, ± 3, -4, -5) are included in the set first predetermined rule, 9 temperature regions (including a normal region, a low temperature region 1, a low temperature region 2, a low temperature region 3, a high temperature region 1, a high temperature region 2, a high temperature region 3, a high temperature region 4, and a high temperature region 5) are set according to the temperature difference thresholds, and the set second predetermined rule sets corresponding fan duty ratios to the 9 temperature regions, specifically: the duty ratio of the fan corresponding to the normal area is 20%; the duty ratio of the fan corresponding to the low temperature 1 region is 10%, the duty ratio of the fan corresponding to the low temperature 2 region is 5%, the duty ratio of the fan corresponding to the low temperature 3 region is 0%, the duty ratio of the fan corresponding to the high temperature 1 region is 30%,the duty ratio of the fan corresponding to the high-temperature area 2 is 50%, the duty ratio of the fan corresponding to the high-temperature area 3 is 70%, the duty ratio of the fan corresponding to the high-temperature area 4 is 90%, and the duty ratio of the fan corresponding to the high-temperature area 5 is 100%. For example, when the second temperature value T2A first temperature T of a certain battery module1The difference d is-4.5, the battery module is divided into 4 high-temperature areas according to a first preset rule, the duty ratio of a fan in the 4 high-temperature areas can be known to be 90% according to a second preset rule, the duty ratio of the fan in the battery module is adjusted to be 90%, the rotating speed of the fan is increased, the air volume of the battery module is increased, heat dissipation is accelerated, the battery module is cooled more quickly, the internal temperature of the battery module reaches the same level of the average temperature of the whole system, and the internal temperatures of other battery modules are adjusted in the same mode to achieve the uniform temperature of the whole system. The corresponding fan duty ratio is correspondingly set for each temperature zone, so that the fan duty ratio of the battery module can be conveniently adjusted according to the temperature zone to which the battery module belongs, the rotating speed of the fan is increased/reduced, the heat dissipation efficiency is improved/reduced, the purpose of temperature equalization inside the whole system is achieved, and the working stability of the whole system is improved.
It should be noted that, the specific value of the fan duty ratio may be set according to the actual situation, and is not limited thereto, and it should be understood that the fan duty ratio in the high temperature region should be set to a larger value to increase the wind speed of the fan and accelerate the heat dissipation; the air speed duty ratio of the low-temperature area is set to be a small value, so that the heat dissipation is reduced by the air speed of a small fan, the speed of the fan can be adjusted for different battery modules, the internal temperature equalization of the whole system is realized, the energy consumption of the fan can be reduced, and the cost is reduced.
In some embodiments, the step S500, after determining the fan duty ratio of each battery module according to the at least two temperature regions, includes:
and S600, repeating the fan speed regulation control method after the preset time, and updating the fan duty ratio of each battery module.
In order to improve the accuracy of fan speed regulation of the whole systemOptionally, after the fan is adjusted in speed once for each battery module, the first temperature value T for each battery module is set again after a predetermined time1And a second temperature value T of the entire system2And obtaining, updating the duty ratio of the fan of each battery module, and regulating the speed of the fan of each battery module again. Can change the fan rotational speed according to entire system's the battery condition of generating heat and the temperature variation condition of each battery module inside in the course of the work like this, realize the dynamic adjustment to the inside temperature of battery module to the realization is to entire system's real-time samming, has avoided the battery module to appear the condition that the high temperature/low and can't adjust once more in the course of the work effectively, has guaranteed entire system's job stabilization nature.
In some embodiments, the preset time is set to 1 minute, and the first temperature value T is applied to each battery module of the whole system after every 1 minute time interval1Calculating the second temperature value T2And the second temperature value T is measured2With a plurality of first temperature values T1And comparing, dividing the battery module into corresponding temperature areas according to the comparison result and the set first preset rule, and giving a specific fan duty ratio to the battery module according to the temperature area where the battery module is located and the second preset rule, so that the internal temperature of the battery module can be adjusted. For example, when the fan is adjusted for the first time, a certain battery module is in a low-temperature region 3, the duty ratio of the fan is 0%, the internal temperature of the battery module is continuously increased along with the increase of the working time, and the first temperature value T of the battery module is continuously increased1Gradually increasing, after 1 minute, a first temperature value T1And a second temperature value T2When the second temperature value T is found2A first temperature value T of the battery module1The difference d of the battery modules is changed into-5, the battery modules are subjected to temperature partition again at the moment, the battery modules are partitioned from a low temperature zone 3 to a high temperature zone 5, the duty ratio of the fan of the battery modules is adjusted from 0% to 100%, the wind speed of the fan is increased to increase the wind quantity of the battery modules, the heat dissipation of the battery modules is accelerated, and the circulating judgment of the internal temperature of each battery module is carried out through preset timeThe fan duty ratio to every module is updated in real time, can eliminate the battery module effectively like this and appear the condition that the high temperature/low excessively and can't adjust once more in the course of the work, has guaranteed that entire system's difference in temperature is in comparatively stable state, has improved entire system's job stabilization nature.
In a second aspect, referring to fig. 5, a fan speed regulation control device according to an embodiment of the present invention includes:
a first obtaining module 510, configured to obtain temperature information of each battery module;
a second obtaining module 520, configured to calculate a second temperature value according to the first temperature value of each piece of temperature information;
a comparison module 530 for comparing the magnitude relationship between each first temperature value and each second temperature value;
the first processing module 540 is configured to perform temperature partitioning on each battery module according to a magnitude relationship between each first temperature value and each second temperature value to obtain at least two temperature regions;
and a second processing module 550 for determining a fan duty ratio of each battery module according to the at least two temperature regions.
In the process of controlling the speed of the fan, the first obtaining module 510 first obtains the temperature information of each battery module, and obtains a plurality of first temperature values T corresponding to each battery module1The second obtaining module 520 passes the series of the first temperature values T1Calculating to obtain a second temperature value T2The second temperature value T is set2As the temperature values corresponding to the whole system, the comparison module 530 compares each first temperature value T1And a second temperature value T2The comparison result is recorded, so that the temperature difference condition between each battery module and the whole system can be clearly reflected according to the comparison result, the first processing module 540 performs temperature partitioning on each battery module according to the comparison result to obtain at least two temperature areas, the second processing module 550 determines the corresponding fan duty ratio according to the temperature area to which each battery module belongs to, and sets the fan duty ratio of the battery module, for example, the first processing module 540 sets the fan duty ratio according to the temperature area to which each battery module belongsThe comparison result sets the temperature zones into a normal zone, a high temperature zone and a low temperature zone, the fan duty ratio of each temperature zone in the second processing module 550 is a certain preset value, the first processing module 540 issues the temperature difference value between one battery module and the whole system to meet the requirement of the low temperature zone according to the comparison result, then the battery module is divided into the low temperature zone, the second processing module 550 sets the fan duty ratio of the battery module according to the fan duty ratio corresponding to the low temperature zone, it is understood that, when the battery module is located in the low temperature zone, the fan duty ratio is smaller, the air volume of the battery module is relatively smaller, the battery module in the high temperature zone has a larger fan duty ratio, the air volume of the battery module is also increased, therefore, the fan rotating speed of each battery module is different according to the difference of the fan duty ratios, the air volume of each battery module is also different, the air quantity of the battery modules is adjusted by changing the rotating speed of the fan, so that temperature difference adjustment among the battery modules is realized, and the working stability of the battery modules is improved.
In some embodiments, the fan speed control device further comprises:
and the circulation module 560 is used for repeating the fan speed regulation control method after the preset time, and updating the fan duty ratio of each module.
In order to improve the fan speed regulation accuracy of the whole system, the circulation module 560 in the fan speed regulation control device may further perform fan speed regulation once for each battery module, and according to a preset time, after the time interval, again perform the first temperature value T for each battery module1And a second temperature value T of the entire system2And obtaining, updating the duty ratio of the fan of each battery module, and regulating the speed of the fan of each battery module again. Can change the fan rotational speed according to the battery condition of generating heat and the temperature variation condition of each battery module of entire system inside in-process like this, realize the dynamic adjustment to the inside temperature of battery module to realize the real-time samming to entire system, avoided the battery module to appear the condition that the temperature is too high/low and can't adjust once more in the course of the work effectively, guaranteed that the battery module is too high/low in the course of the workThe working stability of the whole system.
In a third aspect, a fan speed control device according to an embodiment of the present invention includes at least one processor, and a memory communicatively connected to the at least one processor; the memory stores instructions, and the instructions are executed by the at least one processor, so that when the at least one processor executes the instructions, the fan speed control method according to the first aspect is implemented.
The fan speed regulation control equipment provided by the embodiment of the invention at least has the following beneficial effects: according to the fan speed regulation control equipment, by adopting the fan speed regulation control method of the embodiment of the first aspect, each battery module is subjected to temperature partition, the fan duty ratio corresponding to the battery module is determined according to the temperature area where each battery module is located, the fan rotating speed of each battery module is different according to the difference of the fan duty ratios, and the air volume of each battery module is also different, so that the air volume of each battery module is adjusted by changing the rotating speed of the fan, the temperature difference adjustment among the battery modules is realized, and the working stability of the battery modules is improved.
In a fourth aspect, the present invention further provides a computer readable storage medium having the above fan speed control method. The computer-readable storage medium stores computer-executable instructions for causing a computer to execute the fan speed control method according to the embodiment of the first aspect.
The computer-readable storage medium according to the embodiment of the invention has at least the following advantages: the computer-readable storage medium is used for carrying out temperature partition on each battery module by adopting the fan speed regulation control method of the embodiment of the first aspect, determining the fan duty ratio corresponding to each battery module according to the temperature area where each battery module is located, and adjusting the air volume of each battery module by changing the rotating speed of the fan and adjusting the air volume of each battery module according to the different fan duty ratios, so that the temperature difference adjustment among the battery modules is realized, and the working stability of the battery modules is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The fan speed regulation control method is characterized by comprising the following steps:
acquiring temperature information of each battery module;
calculating a second temperature value according to the first temperature value of each piece of temperature information;
comparing the magnitude relation of each first temperature value and each second temperature value;
carrying out temperature partitioning on each battery module according to the magnitude relation between each first temperature value and each second temperature value to obtain at least two temperature areas;
and determining the duty ratio of the fan of each battery module according to the at least two temperature areas.
2. The fan speed regulation control method according to claim 1, wherein the acquiring temperature information of each battery module comprises:
acquiring temperature information of a plurality of batteries in each battery module to obtain a plurality of battery temperature values;
and calculating the average value of the plurality of battery temperature values to obtain a plurality of first temperature values.
3. The fan speed control method according to claim 1, wherein the calculating a second temperature value according to the first temperature value of each temperature information includes:
and calculating the average value of all the first temperature values to obtain the second temperature value.
4. The fan speed control method according to claim 1, wherein the comparing the magnitude relationship between each of the first temperature values and the second temperature values comprises:
and carrying out difference processing on the second temperature value and each first temperature value to obtain a plurality of difference values.
5. The fan speed regulation control method according to claim 1, wherein the temperature partitioning is performed on each battery module according to the magnitude relationship between each first temperature value and each second temperature value to obtain at least two temperature regions, and the method comprises the following steps:
setting a first predetermined rule for determining a relationship between the magnitude relationship and the temperature zones;
and carrying out temperature partitioning on each battery module according to the size relation and the first preset rule to obtain at least two temperature areas.
6. The fan speed control method according to claim 1, wherein the determining the fan duty cycle of each battery module according to the at least two temperature zones comprises:
setting a second predetermined rule for determining a relationship between the at least two temperature zones and the fan duty cycle;
and setting the duty ratio of the fan of each battery module according to the at least two temperature areas and the second preset rule.
7. The fan speed control method according to any one of claims 1 to 6, wherein after determining the fan duty cycle of each battery module according to the at least two temperature regions, the method further comprises:
and repeating the fan speed regulation control method after the preset time, and updating the fan duty ratio of each battery module.
8. Fan speed governing controlling means, its characterized in that includes:
the first acquisition module is used for acquiring the temperature information of each battery module;
the second acquisition module is used for calculating a second temperature value according to the first temperature value of each piece of temperature information;
the comparison module is used for comparing the magnitude relation between each first temperature value and each second temperature value;
the first processing module is used for carrying out temperature partitioning on each battery module according to the magnitude relation between each first temperature value and each second temperature value to obtain at least two temperature areas;
and the second processing module is used for determining the duty ratio of the fan of each battery module according to the at least two temperature areas.
9. Fan speed governing controlgear, its characterized in that includes:
at least one processor, and,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions for execution by the at least one processor to cause the at least one processor, when executing the instructions, to implement a fan speed control method according to any one of claims 1 to 7.
10. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the fan speed control method according to any one of claims 1 to 7.
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| CN114188632A (en) * | 2021-11-15 | 2022-03-15 | 深圳市科陆电子科技股份有限公司 | Fan speed regulation method, device, equipment and storage medium |
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