CN114810648B - Speed regulating method, heat dissipating device, electronic equipment and storage medium - Google Patents
Speed regulating method, heat dissipating device, electronic equipment and storage medium Download PDFInfo
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- CN114810648B CN114810648B CN202210445086.3A CN202210445086A CN114810648B CN 114810648 B CN114810648 B CN 114810648B CN 202210445086 A CN202210445086 A CN 202210445086A CN 114810648 B CN114810648 B CN 114810648B
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 25
- 238000003860 storage Methods 0.000 title claims abstract description 15
- 230000008859 change Effects 0.000 claims abstract description 75
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 19
- 230000033228 biological regulation Effects 0.000 claims description 25
- 238000005070 sampling Methods 0.000 claims description 19
- 230000020169 heat generation Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 description 5
- 238000013507 mapping Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
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Classifications
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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
- H01M10/613—Cooling or keeping cold
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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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a speed regulating method, a heat radiating device, electronic equipment and a storage medium. The speed regulating method is applied to a heat radiating device, the heat radiating device is used for radiating heat of the battery module, and the speed regulating method comprises the following steps: acquiring the voltage change rate of the battery module; determining the working state of the battery module according to the voltage change rate; the working state comprises any one of a charge-discharge rapid change state, a charge-discharge transition state and a charge-discharge stable state; obtaining at least one preset algorithm from a preset algorithm library according to the working state, and calculating to obtain a target rotating speed according to at least one preset algorithm; and adjusting the heat dissipation device according to the target rotating speed. According to the embodiment of the invention, different speed regulating methods can be used according to different working states of the battery module, so that the problems caused by a single linear control mode in the related art are avoided to a certain extent.
Description
Technical Field
The present invention relates to the field of speed regulation technologies, and in particular, to a speed regulation method, a heat dissipation device, an electronic device, and a storage medium.
Background
At present, in order to ensure that the working temperature of the battery core in the battery module is normal, that is, the working temperature of the battery core is within a preset temperature range, a heat dissipation device such as a fan is configured to perform heat dissipation operation on the battery module.
In the related art, the speed of the fan is regulated by a method for determining the rotation speed of the fan according to the distribution interval of the current temperature of the battery module. However, since the above-described method of controlling the rotational speed of the fan is a linear control, problems such as an excessively large speed adjustment range, excessive energy consumption, and large fan noise are likely to occur.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a speed regulating method, a heat dissipating device, electronic equipment and a storage medium, which can use different speed regulating methods according to different working states of a battery module, so that the problems caused by a single linear control mode in the related technology are avoided to a certain extent.
According to an embodiment of the first aspect of the present invention, a speed regulation method is applied to a heat dissipation device, where the heat dissipation device is used for performing a heat dissipation operation on a battery module, and the speed regulation method includes:
acquiring the voltage change rate of the battery module;
determining the working state of the battery module according to the voltage change rate; the working state comprises any one of a charge-discharge rapid change state, a charge-discharge transition state and a charge-discharge stable state;
obtaining at least one preset algorithm from a preset algorithm library according to the working state, and calculating to obtain a target rotating speed according to at least one preset algorithm;
and adjusting the heat dissipation device according to the target rotating speed.
The speed regulating method provided by the embodiment of the invention has at least the following beneficial effects: the working state of the battery module is divided, the current working state of the battery module is determined through the voltage change rate, one or more preset algorithms are selected from a preset algorithm library according to the difference of the current working state, and the target speed of the heat dissipation device is calculated, so that the accurate control of the speed of the heat dissipation device is realized, and the problems of overlarge speed regulation range, overlarge energy consumption, large fan noise and the like caused by a single linear control method in the related art are avoided to a certain extent.
According to some embodiments of the invention, the target rotational speed comprises a first target rotational speed, and the preset algorithm comprises a first algorithm;
the calculating to obtain the target rotation speed according to at least one preset algorithm includes: calculating according to the first algorithm to obtain the first target rotating speed;
the calculating according to the first algorithm to obtain the target rotation speed includes:
acquiring a voltage value and a current value of the battery module in a preset period;
obtaining heating power according to the voltage value and the current value, and obtaining the heat generation quantity of the battery module in the preset period according to the heating power;
calculating according to the heat generation amount to obtain heat exchange amount;
and obtaining the first target rotating speed according to the heat exchange quantity.
According to some embodiments of the invention, the target rotational speed includes a second target rotational speed, and the preset algorithm further includes a second algorithm;
the calculating according to at least one preset algorithm to obtain the target rotation speed further includes: calculating according to the second algorithm to obtain the second target rotating speed;
the calculating according to the second algorithm to obtain the target rotation speed includes:
acquiring average temperature values of the battery module in n first sampling periods; wherein n is a positive integer greater than or equal to 1, and the n first sampling periods are located in the same working state;
calculating to obtain a duty ratio according to the average temperature value, a first preset regulating factor and a preset reference temperature value;
and obtaining the second target rotating speed according to the duty ratio.
According to some embodiments of the invention, the target rotation speed includes a third target rotation speed, and the preset algorithm further includes a third algorithm;
the calculating according to at least one preset algorithm to obtain the target rotation speed further includes: calculating according to the third algorithm to obtain the third target rotating speed;
the calculating according to the third algorithm to obtain the target rotation speed includes:
acquiring a first temperature change value of the battery module in a preset first period, and acquiring a second temperature change value of the battery module in a preset second period; wherein the first period and the second period are two adjacent periods;
calculating according to the first temperature change value, the second temperature change value and a second sampling period to obtain a temperature change rate;
and obtaining the third target rotating speed according to the temperature change rate and a second preset regulating factor.
According to some embodiments of the invention, the determining the operating state of the battery module according to the voltage change rate includes:
if the voltage change rate is smaller than a first preset threshold value, determining that the working state is the charge-discharge stable state;
if the voltage change rate is larger than the first preset threshold value and smaller than the second preset threshold value, determining that the working state is the charge-discharge transition state;
and if the voltage change rate is larger than the second preset threshold value, determining that the working state is the charge-discharge rapid change state.
According to a second aspect of the present invention, a heat dissipating device includes:
the algorithm library is preset and used for storing a first algorithm, a second algorithm and a third algorithm;
the main control module is used for executing the speed regulating method according to any one of the first aspect.
An electronic device according to an embodiment of a third aspect of the present invention includes: at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the pacing method as described in the first aspect.
A computer readable storage medium according to an embodiment of the fourth aspect of the present invention, having stored therein processor executable instructions which when executed by a processor are for implementing the pacing method according to any one of the first aspect.
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 accompanying drawings and examples, in which:
FIG. 1 is a schematic flow chart of a speed adjusting method according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of a speed regulation method according to an embodiment of the invention;
FIG. 3 is a schematic flow chart of a speed regulation method according to an embodiment of the invention;
FIG. 4 is a schematic flow chart of a speed regulation method according to an embodiment of the invention;
fig. 5 is a block diagram of a heat dissipating device according to an embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed 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 explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1, an embodiment of the present application provides a speed regulation method applied to a heat dissipation device for performing a heat dissipation operation on a battery module, the speed regulation method including, but not limited to, steps S110 to S140.
S110, acquiring the voltage change rate of the battery module;
s120, determining the working state of the battery module according to the voltage change rate; the working mode comprises any one of a charge-discharge rapid change state, a charge-discharge transition state and a charge-discharge stable state;
s130, obtaining at least one preset algorithm from a preset algorithm library according to the working state, and calculating to obtain a target rotating speed according to the at least one preset algorithm;
and S140, adjusting the heat dissipation device according to the target rotating speed.
Specifically, according to the characteristics of the operation condition of the battery module, the working state of the battery module in the charge and discharge operation can be divided into a charge and discharge rapid change state, a charge and discharge transition state and a charge and discharge stable state. The working state is divided into examples by the voltage change rate, and a first preset threshold value and a second preset threshold value are set, wherein the first preset threshold value is smaller than the second preset threshold value. When the voltage change rate is smaller than a first preset threshold, namely the voltage change of the battery module is gentle in a certain period of time, confirming that the battery module is in a stable charge and discharge state in the period of time; when the voltage change rate is larger than the first preset threshold value and smaller than the second preset threshold value, namely the voltage of the battery module has a change trend in a certain time period, and when the change trend is not large, the battery module is confirmed to be in a charge-discharge transition state in the time period; and when the voltage change rate is larger than a second preset threshold value, namely the voltage change trend of the battery module is larger in a certain period of time, confirming that the battery module is in a charge-discharge rapid change state.
And acquiring the voltage change rate of the battery module corresponding to the heat dissipation device to be controlled, and determining the current working state of the battery module according to the method and the voltage change rate. And inquiring a preset algorithm library according to the current working state of the battery module to obtain a preset algorithm corresponding to the current working state. The preset algorithm library stores working states such as a charge-discharge rapid change state, a charge-discharge transition state, a charge-discharge stable state and the like, and preset algorithms corresponding to each working state. It will be appreciated that, according to control requirements, such as requirements of control speed, accuracy, energy consumption, etc., an operating state may correspond to one or more preset algorithms, which are not specifically limited in this embodiment of the present application. And calculating the speed of the heat dissipating device according to a preset algorithm obtained by inquiry to obtain a target speed, and adjusting the heat dissipating device according to the target speed, so that the temperature of the battery module is ensured to be kept within a preset range.
According to the speed regulating method, the working states of the battery module are divided, the current working states of the battery module are determined through the voltage change rate, one or more preset algorithms are selected from the preset algorithm library according to the difference of the current working states, and the target speed of the heat dissipation device is calculated, so that the accurate control of the speed of the heat dissipation device is achieved, and the problems of overlarge speed regulating range, overlarge energy consumption, large fan noise and the like caused by a single linear control method in the related art are avoided to a certain extent.
Referring to fig. 2, in some embodiments, the target rotational speed includes a first target rotational speed, the preset algorithm includes a first algorithm, and step S130 includes: and calculating according to a first algorithm to obtain a first target rotating speed.
Wherein the step of calculating the first target rotational speed according to the first algorithm includes, but is not limited to, sub-steps S210 to S240.
S210, acquiring a voltage value and a current value of the battery module in a preset period;
s220, obtaining heating power according to the voltage value and the current value, and obtaining the heat generation amount of the battery module in a preset period according to the heating power;
s230, calculating according to the heat generation amount to obtain heat exchange amount;
s240, obtaining a first target rotating speed according to the heat exchange quantity.
Specifically, taking a battery module in a stable state of charge and discharge as an example. When the working state of the battery module at the moment T is determined to be the stable charging and discharging state by the voltage change rate of the battery module, the voltage value U and the current value I of the battery module at the two ends of the moment T-1 are obtained according to the data recorded before the moment T. And calculating according to the voltage value U and the current value I to obtain the heating power P=IU of the battery module at the moment T-1. According to the method, a plurality of heating powers P of the battery modules in the preset period t1 are calculated, so that the heat production quantity Q of the battery modules in the preset period t1 is obtained by time integration of the preset period t1 Heat generation The heat exchange amount Q required for heat exchange is obtained by converting the temperature of the battery module to be kept within a preset range according to the following formula (1) =p·t1 Heat exchange 。
Q Heat generation -Q Heat exchange =cm, Δt........... (1)
Wherein C represents the specific heat capacity of the battery module material, M represents the mass of the battery module, and DeltaT represents the temperature rise of the battery module within the preset period. According to the heat exchange quantity Q Heat exchange The relation with the rotation speed of the heat dissipating device obtains a first target rotation speed, such as a preset heat exchanging amount Q Heat exchange The heat exchange quantity Q calculated according to the method is obtained when the heat exchange quantity Q is in linear relation with the rotating speed of the heat radiating device Heat exchange And converting the preset linear factor to obtain the target speed. And adjusting the heat dissipation device according to the target speed, so as to ensure that the temperature of the battery module is kept within a preset range. It can be understood that when mapping the first algorithm with the charge-discharge abrupt change state and/or the charge-discharge transition state in the preset algorithm library, only the preset period t1 needs to be adjusted to be located in the charge-discharge abrupt change state (or the charge-discharge transition state), which is not described in detail in this embodiment of the present application.
Referring to fig. 3, in some embodiments, the target rotational speed includes a second target rotational speed, the preset algorithm includes a second algorithm, and step S130 includes: and calculating according to a second algorithm to obtain a second target rotating speed.
Wherein step "calculating the second target rotational speed according to the first algorithm" includes, but is not limited to, sub-steps S310 to S330.
S310, acquiring average temperature values of the battery module in n first sampling periods; wherein n is a positive integer greater than or equal to 1, and n first sampling periods are located in the same working state;
s320, calculating to obtain a duty ratio according to the average temperature value, the first preset regulating factor and the preset reference temperature value;
s330, obtaining a second target rotating speed according to the duty ratio.
Specifically, taking the example that the battery module is in a charge-discharge transition state, the proportion adjustment is performed according to the change of temperature along with time. When the current working state of the battery module is determined to be a charge-discharge transition state by the voltage change rate of the battery module, the average temperature value T1 of n first sampling periods is obtained according to the recorded data, so that the duty ratio p is calculated according to the following formula (2) 1 And then according to the duty ratio p 1 Obtaining a second target rotating speed. It can be appreciated that the duty cycle p 1 The duty cycle is PWM controlled for the heat sink in a linear relationship with the rotational speed of the heat sink.
p 1 =k·abs (T1-T0)............ Formula (2)
Wherein K is a proportional adjustment factor (i.e., a first preset adjustment factor) set according to an actual adjustment requirement, and T0 is a preset reference temperature value. It is understood that in the second algorithm, n first sampling periods are all required to be in the charge-discharge transition state. When the second algorithm is mapped with the charge-discharge stable state and/or the charge-discharge rapid change state in the preset algorithm library, only n first sampling periods need to be adjusted to be located in the charge-discharge stable state (or the charge-discharge rapid change state), and the embodiment of the application is not repeated.
Referring to fig. 4, in some embodiments, the target rotational speed includes a third target rotational speed, the preset algorithm includes a third algorithm, and step S130 includes: and calculating according to a third algorithm to obtain a third target rotating speed.
Wherein step "calculating the target rotational speed according to the first algorithm" includes, but is not limited to, sub-steps S410 to S430.
S410, acquiring a first temperature change value of the battery module in a preset first time period, and acquiring a second temperature change value of the battery module in a preset second time period; wherein the first time period and the second time period are two adjacent time periods;
s420, calculating according to the first temperature change value, the second temperature change value and the second sampling period to obtain a temperature change rate;
s430, obtaining a third target rotating speed according to the temperature change rate and the second preset regulating factor.
Specifically, taking the case that the battery module is in a charge-discharge rapid change state as an example, according to differential control, determining the third target rotating speed of the heat dissipating device according to the temperature change rate of the battery module. When the current working state of the battery module is determined to be a charge-discharge rapid change state by the voltage change rate of the battery module, a first temperature change value delta T1 of the battery module in an I sampling time period (namely a first time period) is obtained, and a second temperature change value delta T2 of the battery module in an I+1 sampling time period (namely a second time period) is obtained. Wherein, the I sampling period and the i+1 sampling period are both located in the same second sampling period t2. And calculating the temperature change rate D of the battery module in the second sampling period T2 according to the first temperature change value delta T1, the second temperature change value delta T2 and the following formula (3), so as to obtain a third target rotating speed according to the product of the temperature change rate D and a preset proportionality coefficient (namely a second preset regulating factor).
D= (Δt2- Δt1)/T2,........... (3)
It can be understood that when the third algorithm is mapped to the charge-discharge stable state and/or the charge-discharge transition state in the preset algorithm library, only the second sampling period t2 needs to be adjusted to be in the charge-discharge stable state (or the charge-discharge transition state), which is not repeated in this embodiment of the present application.
In a specific embodiment, the mapping relation in the preset algorithm library is set as a mapping between a first algorithm and a charge-discharge steady state, a mapping between a second algorithm and a charge-discharge transition state, and a mapping between a third algorithm and a charge-discharge sharp change state, namely, integral adjustment is performed when the battery module is in the charge-discharge steady state, proportional adjustment is performed when the battery module is in the charge-discharge transition state, and differential adjustment is performed when the battery module is in the charge-discharge sharp change state, so that different speed regulation methods are used according to different working states of the battery module, and speed regulation accuracy is improved. It can be understood that according to the speed regulation requirement (including the requirements of cost, precision, complexity, calculation time and the like), the hybrid regulation of integral regulation, proportional regulation and differential regulation can be further performed when the battery module is in a stable state of charge and discharge. Wherein, the mixing adjustment comprises the mixing of any two adjustment methods or the mixing of three adjustment methods. Similarly, when the battery module is in the charge-discharge transition state and the charge-discharge rapid change state, the above-mentioned mixed adjustment may be performed, and the embodiment of the present application is not particularly limited.
It can be appreciated that in some embodiments, the speed regulation method provided in the embodiments of the present application may be further linked with a container air conditioning system (HAVC) loaded with a battery module, so as to improve the temperature regulation efficiency of the battery module, and enable the container air conditioning system to be in an optimal energy consumption and operation state.
Referring to fig. 5, an embodiment of the present application further provides a heat dissipating device, including:
the preset algorithm library 100 is used for storing a first algorithm, a second algorithm and a third algorithm.
The main control module 200 is configured to perform the speed regulation method described in any of the above embodiments.
Therefore, the content in the above speed regulating method embodiment is applicable to the embodiment of the heat dissipating device, and the specific function of the embodiment of the heat dissipating device is the same as that of the above speed regulating method embodiment, and the achieved beneficial effects are the same as those of the above speed regulating method embodiment.
In some embodiments, the learning module may be separately provided in the heat dissipating device, or may be used as an additional module of the main control module. The learning module is used for carrying out online learning and intelligent control according to different use scenes and speed regulation requirements through a neural network, a genetic algorithm, a fuzzy algorithm and the like, so that the speed regulation of the heat radiating device is more accurate, rapid and stable.
The embodiment of the application also provides electronic equipment, which comprises: at least one processor, and a memory communicatively coupled to the at least one processor. The memory stores instructions that are executed by the at least one processor to cause the at least one processor to implement the pacing method as described in any one of the embodiments above when the instructions are executed.
Embodiments of the present application provide a computer-readable storage medium storing computer-executable instructions for: the speed regulation method described in any of the above embodiments is performed.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application. Furthermore, embodiments of the present application and features of the embodiments may be combined with each other without conflict.
Claims (7)
1. The speed regulating method is characterized by being applied to a heat dissipation device, wherein the heat dissipation device is used for performing heat dissipation operation on the battery module, and the speed regulating method comprises the following steps:
acquiring the voltage change rate of the battery module;
determining the working state of the battery module according to the voltage change rate; the working state comprises any one of a charge-discharge rapid change state, a charge-discharge transition state and a charge-discharge stable state;
obtaining at least one preset algorithm from a preset algorithm library according to the working state, and calculating to obtain a target rotating speed according to at least one preset algorithm;
adjusting the heat dissipation device according to the target rotating speed;
wherein the target rotation speed comprises a second target rotation speed, and the preset algorithm comprises a second algorithm;
the calculating to obtain the target rotation speed according to at least one preset algorithm includes: calculating to obtain the second target rotating speed according to the second algorithm, and taking the second target rotating speed as the target rotating speed;
the calculating according to the second algorithm to obtain the second target rotation speed includes:
acquiring average temperature values of the battery module in n first sampling periods; wherein n is a positive integer greater than or equal to 1, and the n first sampling periods are located in the same working state;
calculating to obtain a duty ratio according to the average temperature value, a first preset regulating factor and a preset reference temperature value;
and obtaining the second target rotating speed according to the duty ratio.
2. The method of claim 1, wherein the target rotational speed comprises a first target rotational speed, and the preset algorithm further comprises a first algorithm;
the calculating according to at least one preset algorithm to obtain the target rotation speed further includes: calculating to obtain the first target rotating speed according to the first algorithm, and taking the first target rotating speed as the target rotating speed;
the calculating according to the first algorithm to obtain the first target rotation speed includes:
acquiring a voltage value and a current value of the battery module in a preset period;
obtaining heating power according to the voltage value and the current value, and obtaining the heat generation quantity of the battery module in the preset period according to the heating power;
calculating according to the heat generation amount to obtain heat exchange amount;
and obtaining the first target rotating speed according to the heat exchange quantity.
3. The method according to claim 1, wherein the target rotation speed includes a third target rotation speed, and the preset algorithm further includes a third algorithm;
the calculating according to at least one preset algorithm to obtain the target rotation speed further includes: calculating to obtain the third target rotating speed according to the third algorithm, and taking the third target rotating speed as the target rotating speed;
the calculating according to the third algorithm to obtain the third target rotation speed includes:
acquiring a first temperature change value of the battery module in a preset first period, and acquiring a second temperature change value of the battery module in a preset second period; wherein the first period and the second period are two adjacent periods;
calculating according to the first temperature change value, the second temperature change value and a second sampling period to obtain a temperature change rate;
and obtaining the third target rotating speed according to the temperature change rate and a second preset regulating factor.
4. A speed regulation method according to any one of claims 1 to 3, wherein the determining the operating state of the battery module according to the voltage change rate includes:
if the voltage change rate is smaller than a first preset threshold value, determining that the working state is the charge-discharge stable state;
if the voltage change rate is larger than the first preset threshold value and smaller than the second preset threshold value, determining that the working state is the charge-discharge transition state;
and if the voltage change rate is larger than the second preset threshold value, determining that the working state is the charge-discharge rapid change state.
5. Heat abstractor, its characterized in that includes:
the algorithm library is preset and used for storing a first algorithm, a second algorithm and a third algorithm;
a main control module for executing the speed regulation method according to any one of claims 1 to 4.
6. An electronic device, comprising:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is caused to implement the pacing method of any one of claims 1 to 4.
7. Computer readable storage medium, in which processor executable instructions are stored, characterized in that the processor executable instructions are for implementing the pacing method according to any one of claims 1 to 4 when being executed by a processor.
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