CN111864291A - Control method and device for lithium battery auxiliary heating system - Google Patents
Control method and device for lithium battery auxiliary heating system Download PDFInfo
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- CN111864291A CN111864291A CN202010768089.1A CN202010768089A CN111864291A CN 111864291 A CN111864291 A CN 111864291A CN 202010768089 A CN202010768089 A CN 202010768089A CN 111864291 A CN111864291 A CN 111864291A
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
- H01M10/465—Accumulators structurally combined with charging apparatus with solar battery as charging system
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring 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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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
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Abstract
The application is suitable for the technical field of lithium batteries, and provides a control method of a lithium battery auxiliary heating system, which comprises the following steps: monitoring the battery temperature of the lithium battery; when the battery temperature meets a preset condition, acquiring solar input power; and controlling an auxiliary heating system according to the solar energy input power. According to the scheme, the auxiliary heating system is controlled by integrating two factors of the battery temperature and the solar input power, the problem that the lithium battery cannot work in a low-temperature state is solved, and the solar power supply system can efficiently play a role in a low-temperature environment.
Description
Technical Field
The application belongs to the technical field of lithium batteries, and particularly relates to a control method and equipment for a lithium battery auxiliary heating system.
Background
Due to the material characteristics of the lithium battery, both charging and discharging need to work within a certain temperature range, and when the current temperature is lower than a certain temperature, the lithium battery cannot be charged and only can be discharged; when the current temperature is lower temperature, the lithium battery can not be charged and can not be discharged. For example, the allowable temperature range for charging of a general lithium battery is from 0 ℃ to 45 ℃, and the allowable temperature range for discharging is from-20 ℃ to 60 ℃. Lithium batteries of common solar power supply equipment cannot be charged below 0 ℃ and can only discharge; the discharge can not be carried out below minus 20 ℃, namely, the charging and the discharging can not be carried out, which is equivalent to the failure of work. In order to solve the problem that a lithium battery cannot be charged below 0 ℃ and only can be discharged, the conventional solar power supply equipment is additionally provided with an auxiliary heating system, the battery is not only closed to be charged below 0 ℃, but also heated by an electrothermal film by using the energy of solar energy, and the charging is started again after the temperature of the battery is recovered to be above 0 ℃. However, the existing control method of the auxiliary heating system still cannot solve the problem that the lithium battery cannot work in a low-temperature state, so that the solar power supply equipment cannot work normally in a low-temperature scene, and the use is limited.
Disclosure of Invention
The embodiment of the application provides a control method and equipment for a lithium battery auxiliary heating system, and the problem that the conventional control method for the auxiliary heating system still cannot solve the problem that a lithium battery cannot work in a low-temperature state, so that solar power supply equipment cannot normally work in a low-temperature scene, and the use is limited can be solved.
In a first aspect, an embodiment of the present application provides a control method for a lithium battery auxiliary heating system, including:
monitoring the battery temperature of the lithium battery;
when the battery temperature meets a preset condition, acquiring solar input power;
and controlling an auxiliary heating system according to the solar energy input power.
Further, when the battery temperature satisfies a preset condition, acquiring solar input power includes:
when the temperature of the battery is in a first temperature interval, acquiring solar input power;
the control of the auxiliary heating system according to the solar input power comprises:
operating an auxiliary heating system when the solar input power is greater than a first power threshold.
Further, the controlling of the auxiliary heating system according to the solar input power includes:
when the solar input power is less than or equal to a first power threshold, a secondary thermal system is not operated.
Further, when the battery temperature satisfies a preset condition, acquiring solar input power includes:
when the temperature of the battery is in a second temperature interval, acquiring solar input power;
the control of the auxiliary heating system according to the solar input power comprises:
operating an auxiliary heating system when the solar input power is greater than a second power threshold.
Further, after the operating the auxiliary heating system, the method further comprises:
and when the battery temperature is greater than a first temperature threshold value, closing the auxiliary heating system.
Further, the controlling an auxiliary heating system according to the solar input power further comprises:
operating a secondary thermal system when the solar input power is greater than or equal to a third power threshold and the solar input power is less than or equal to a second power threshold.
Further, the controlling of the auxiliary heating system according to the solar input power includes:
when the solar input power is smaller than the third power threshold, acquiring the current residual electric quantity of the lithium battery;
and when the current residual electric quantity is larger than the electric quantity threshold value, operating the auxiliary heating system.
Further, after the operating the auxiliary heating system, the method further comprises:
and when the battery temperature is greater than a second temperature threshold value, closing the auxiliary heating system.
In a second aspect, an embodiment of the present application provides a control device for a lithium battery auxiliary heating system, including:
the detection unit is used for monitoring the battery temperature of the lithium battery;
the acquisition unit is used for acquiring solar input power when the battery temperature meets a preset condition;
and the control unit is used for controlling the auxiliary heating system according to the solar energy input power.
Further, the obtaining unit is specifically configured to:
when the temperature of the battery is in a first temperature interval, acquiring solar input power;
the control unit is specifically configured to:
operating an auxiliary heating system when the solar input power is greater than a first power threshold.
Further, the control unit is specifically further configured to:
when the solar input power is less than or equal to a first power threshold, a secondary thermal system is not operated.
Further, the obtaining unit is specifically configured to:
when the temperature of the battery is in a second temperature interval, acquiring solar input power;
the control unit is specifically configured to:
operating an auxiliary heating system when the solar input power is greater than a second power threshold.
Further, the control unit is specifically further configured to:
and when the battery temperature is greater than a first temperature threshold value, closing the auxiliary heating system.
Further, the control unit is specifically configured to:
operating a secondary thermal system when the solar input power is greater than or equal to a third power threshold and the solar input power is less than or equal to a second power threshold.
Further, the control unit is specifically configured to:
when the solar input power is smaller than the third power threshold, acquiring the current residual electric quantity of the lithium battery;
and when the current residual electric quantity is larger than the electric quantity threshold value, operating the auxiliary heating system.
Further, the control unit is specifically further configured to:
and when the battery temperature is greater than a second temperature threshold value, closing the auxiliary heating system.
In a third aspect, an embodiment of the present application provides a control device for a lithium battery auxiliary heating system, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the control method for the lithium battery auxiliary heating system according to the first aspect when executing the computer program.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method for controlling a lithium battery auxiliary heating system according to the first aspect is implemented.
In the embodiment of the application, the battery temperature of the lithium battery is monitored; when the battery temperature meets a preset condition, acquiring solar input power; and controlling an auxiliary heating system according to the solar energy input power. According to the scheme, the auxiliary heating system is controlled by integrating two factors of the battery temperature and the solar input power, the problem that the lithium battery cannot work in a low-temperature state is solved, and the solar power supply system can efficiently play a role in a low-temperature environment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a control method of a lithium battery auxiliary heating system according to a first embodiment of the present application;
fig. 2 is a schematic diagram of a control device of a lithium battery auxiliary heating system according to a second embodiment of the present application;
fig. 3 is a schematic diagram of a control device of a lithium battery auxiliary heating system according to a third embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
Referring to fig. 1, fig. 1 is a schematic flowchart of a control method of a lithium battery auxiliary heating system according to a first embodiment of the present application. In this embodiment, an execution main body of the control method of the lithium battery auxiliary heating system is a device having a control function of the lithium battery auxiliary heating system, for example, a server, a personal computer, or the like. The control method of the lithium battery auxiliary heating system shown in fig. 1 may include:
s101: the battery temperature of the lithium battery is monitored.
The solar power supply equipment consists of a solar cell module, a solar controller and a storage battery (group). The inverter can be configured according to actual needs. Solar energy is a clean renewable new energy source and has a wide role in life and work of people, one of the functions is to convert the solar energy into electric energy, and solar power generation is divided into photo-thermal power generation and photovoltaic power generation. Generally speaking, solar power generation refers to solar photovoltaic power generation, has the characteristics of no moving parts, no noise, no pollution, high reliability and the like, and has a good application prospect in a communication power supply system in a remote area. The storage battery of the existing solar power supply system generally adopts a ternary lithium battery, and the ternary polymer lithium battery refers to a lithium battery of which the anode material is a ternary anode material of lithium nickel cobalt manganese oxide (li (nicomn) O2) or lithium nickel cobalt aluminate.
Due to the material characteristics of the lithium battery, both charging and discharging need to work within a certain temperature range, and when the current temperature is lower than a certain temperature, the lithium battery cannot be charged and only can be discharged; when the current temperature is lower temperature, the lithium battery can not be charged and can not be discharged. For example, when the allowable temperature range for charging the lithium battery is 0 ℃ to 45 ℃ and the allowable temperature range for discharging is-20 ℃ to 60 ℃, the lithium battery of the solar power supply equipment cannot be charged below 0 ℃ and can only be discharged; the discharge can not be carried out below minus 20 ℃, namely, the charging and the discharging can not be carried out, which is equivalent to the failure of work. In order to solve the problem that a lithium battery cannot be charged below 0 ℃ and only can be discharged, an auxiliary heating system is added to high-end solar power supply equipment on the market, the battery is not only turned off to be charged below 0 ℃, but also is heated by an electrothermal film by using solar energy, and the charging is started again after the temperature of the battery is recovered to be above 0 ℃. Therefore, in order to monitor the operating state of the lithium battery, it is necessary to monitor the battery temperature of the lithium battery.
The device monitors the battery temperature of the lithium battery, and in this embodiment, the battery temperature of the lithium battery may be monitored in real time by a Micro Controller Unit (MCU). The MCU, also called a Single Chip Microcomputer (MCU) or a Single Chip Microcomputer (MCU), properly reduces the frequency and specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory (memory), a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, and even an LCD driving circuit on a Single Chip to form a Chip-level computer, which is used for different combination control in different applications.
In addition, in the embodiment, the auxiliary heating system is controlled by integrating two factors of the battery temperature and the solar energy input power, so that the MCU can monitor the battery temperature and the solar energy input power at the same time.
S102: and when the temperature of the battery meets a preset condition, acquiring the solar input power.
The device stores preset conditions, wherein the preset conditions are used for judging whether the solar input power is to be acquired. The solar input power is obtained from the equipment to control the auxiliary heating system, so that the auxiliary heating system is controlled to obtain the solar input power only when the temperature of the battery is lower and normal work is guaranteed. And when the equipment detects that the temperature of the battery meets a preset condition, acquiring the solar input power. For example, when the temperature of the battery is lower than a preset temperature threshold, the lithium battery may be unable to be charged or discharged normally, and the device obtains the solar input power and controls the auxiliary heating system according to the solar input power.
It can be understood that, when the battery temperature can be charged and discharged normally, the auxiliary heating system does not need to be controlled, and the battery can be directly charged and discharged normally.
S103: and controlling an auxiliary heating system according to the solar energy input power.
The device controls the auxiliary heating system according to the solar input power, for example, when the auxiliary heating system is controlled, the auxiliary heating system may be controlled to operate according to a preset power threshold when the solar input power is greater than a certain preset power threshold.
There may be different ways to control the auxiliary heating system according to the solar input power according to the temperature of the battery, and some specific embodiments are described below.
In one embodiment, when the battery temperature is in a first temperature interval, acquiring solar input power; the mode of controlling the auxiliary heating system according to the solar energy input power is as follows: the auxiliary heating system is operated when the solar input power is greater than the first power threshold. Further, when the solar input power is less than or equal to a first power threshold, the secondary thermal system is not operated. In this embodiment, the device prestores a first temperature interval, and when the battery temperature is monitored to be in the first temperature interval, the device acquires the solar input power. The first temperature interval can be set according to the actual working temperature interval of the current lithium battery, for example, the lithium battery cannot be charged below 0 ℃ and can only be discharged; in order to ensure that the lithium battery can be normally discharged and normally charged, the first temperature interval can be set according to 0 ℃ and-20 ℃, for example, the first temperature interval is set to be-15 ℃ to 5 ℃, and when the temperature of the battery is monitored to be-15 ℃ to 5 ℃, the device acquires solar input power. After the device obtains the solar input power, whether the solar input power is larger than a first power threshold value or not is judged, and when the solar input power is larger than the first power threshold value, the auxiliary heating system is operated. When the solar input power is less than or equal to the first power threshold, the secondary thermal system is not operated. During actual use of the product, the first power threshold may be set to 3W, and the auxiliary heating system is operated when the solar input power is greater than 3W. When the solar input power is less than or equal to 3W, the secondary thermal system is not operated.
In addition, after the auxiliary heating system is operated, the auxiliary heating system can be closed at regular time or can be closed by setting certain conditions. In this embodiment, when the battery can be charged normally, the auxiliary heating system may be turned off, and it may be determined whether the battery can be charged normally through the battery temperature, so that when the battery temperature is greater than the first temperature threshold, the auxiliary heating system is turned off. For example, if the photovoltaic energy is sufficient, the secondary heat is targeted to above 5 ℃ in order to enable charging, the first temperature threshold may be set slightly above 5 ℃, for example to 10 ℃.
In another embodiment, when the battery temperature is in a second temperature interval, acquiring solar input power; the method for controlling the auxiliary heating system according to the solar energy input power can be as follows: operating the auxiliary heating system when the solar input power is greater than the second power threshold. Further, a secondary thermal system is operated when the solar input power is greater than or equal to a third power threshold and the solar input power is less than or equal to a second power threshold. In this embodiment, the device prestores a second temperature interval, and when the battery temperature is monitored to be in the second temperature interval, the device acquires the solar input power. The second temperature interval can be set according to the actual working temperature interval of the current lithium battery, for example, the lithium battery cannot be charged below 0 ℃ and can only be discharged; in order to ensure that the lithium battery can normally discharge, the second temperature interval can be set according to-20 ℃, for example, the second temperature interval is set to be less than or equal to-15 ℃, and when the temperature of the battery is monitored to be less than or equal to-15 ℃, the device acquires the solar input power. And after the equipment acquires the solar input power, judging whether the solar input power is greater than a second power threshold, and operating the auxiliary heating system when the solar input power is greater than the second power threshold. The auxiliary thermal system is operated when the solar input power is greater than or equal to the third power threshold and the solar input power is less than or equal to the second power threshold. The third power threshold may be the same as or different from the first power threshold, and in the actual use process of the product, the third power threshold may be set to 3W, and the second power threshold may be set to 6W, for example, when the solar input power is greater than 3W and less than 6W, the auxiliary heating system is operated.
Further, when extremely low temperature, battery power can contract a lot than normal temperature, in order to avoid exhausting the electric quantity in advance at extremely low temperature, can survey the electric quantity, and how to control auxiliary heating system is judged with reference to the residual capacity of lithium cell. Therefore, the electric quantity can be prevented from being rapidly exhausted in a low-temperature environment, and the long-term service life is prevented from being influenced. When the residual battery capacity is more, the auxiliary heating system can be continuously controlled, otherwise, the battery capacity is exhausted in advance, and the auxiliary heating system cannot work. When the solar input power is smaller than a third power threshold, acquiring the current residual electric quantity of the lithium battery; and when the current residual electric quantity is greater than the electric quantity threshold value, operating the auxiliary heating system. The power threshold may be set to 50% of the battery power, or may be set to 60%, which is not limited herein.
Further, after the auxiliary heating system is operated, the auxiliary heating system can be turned off at regular time or can be turned off by setting a certain condition. In this embodiment, when the battery can normally discharge, the auxiliary heating system may be turned off, and whether the battery can normally discharge may be determined by the battery temperature, so that when the battery temperature is greater than the second temperature threshold, the auxiliary heating system is turned off. For example, if there is no photovoltaic energy or insufficient energy, the purpose of the auxiliary heating is to ensure that the temperature is above-15 ℃ and the battery can normally discharge. The second temperature threshold may be set slightly above-15 deg.c, for example, the second temperature threshold may be set at-10 deg.c. If the battery capacity is considered, when the battery capacity is sufficient, for example, the remaining battery capacity is greater than 50%, it may be considered that the second temperature threshold is set to-20 ℃, and when the battery temperature is monitored to be greater than or equal to-20 ℃, it is determined that the lithium battery can normally discharge, and the auxiliary heat is turned off. It can be understood that, if the battery temperature is monitored to be lower than-20 ℃, the current lithium battery cannot be normally discharged and cannot be normally charged, and in order to protect the battery, the charging function and the discharging function are turned off, and the auxiliary heating function is also not turned on.
In the embodiment of the application, the battery temperature of the lithium battery is monitored; when the battery temperature meets a preset condition, acquiring solar input power; and controlling an auxiliary heating system according to the solar energy input power. According to the scheme, the auxiliary heating system is controlled by integrating two factors of the battery temperature and the solar input power, the problem that the lithium battery cannot work in a low-temperature state is solved, and the solar power supply system can efficiently play a role in a low-temperature environment.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Referring to fig. 2, fig. 2 is a schematic diagram of a control device of a lithium battery auxiliary heating system according to a second embodiment of the present application. The included units are used for executing the steps in the embodiment corresponding to fig. 1, and refer to the related description in the embodiment corresponding to fig. 1. For convenience of explanation, only the portions related to the present embodiment are shown. Referring to fig. 2, the control device 2 of the lithium battery auxiliary heating system includes:
a detection unit 210 for monitoring a battery temperature of the lithium battery;
an obtaining unit 220, configured to obtain solar input power when the battery temperature meets a preset condition;
a control unit 230 for controlling the auxiliary heating system according to the solar input power.
Further, the obtaining unit 220 is specifically configured to:
when the temperature of the battery is in a first temperature interval, acquiring solar input power;
the control unit 230 is specifically configured to:
operating an auxiliary heating system when the solar input power is greater than a first power threshold.
Further, the control unit 230 is specifically further configured to:
when the solar input power is less than or equal to a first power threshold, a secondary thermal system is not operated.
Further, the obtaining unit 220 is specifically configured to:
when the temperature of the battery is in a second temperature interval, acquiring solar input power;
the control unit 230 is specifically configured to:
operating an auxiliary heating system when the solar input power is greater than a second power threshold.
Further, the control unit 230 is specifically further configured to:
and when the battery temperature is greater than a first temperature threshold value, closing the auxiliary heating system.
Further, the control unit 230 is specifically configured to:
operating a secondary thermal system when the solar input power is greater than or equal to a third power threshold and the solar input power is less than or equal to a second power threshold.
Further, the control unit 230 is specifically configured to:
when the solar input power is smaller than the third power threshold, acquiring the current residual electric quantity of the lithium battery;
and when the current residual electric quantity is larger than the electric quantity threshold value, operating the auxiliary heating system.
Further, the control unit 230 is specifically further configured to:
and when the battery temperature is greater than a second temperature threshold value, closing the auxiliary heating system.
Fig. 3 is a schematic diagram of a control device of a lithium battery auxiliary heating system according to a third embodiment of the present application. As shown in fig. 3, the control device 3 of the lithium battery auxiliary heating system of the embodiment includes: a processor 30, a memory 31 and a computer program 32, such as a control program for a lithium battery auxiliary heating system, stored in said memory 31 and executable on said processor 30. The processor 30 executes the computer program 32 as steps in an embodiment of a method for controlling a lithium battery auxiliary heating system, such as steps 101 to 103 shown in fig. 1. Alternatively, the processor 30, when executing the computer program 32, implements the functions of the modules/units in the above-mentioned device embodiments, such as the functions of the modules 210 to 230 shown in fig. 2.
Illustratively, the computer program 32 may be partitioned into one or more modules/units that are stored in the memory 31 and executed by the processor 30 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program 32 in the control device 3 of the lithium battery auxiliary heating system. For example, the computer program 32 may be divided into a detection unit, an acquisition unit, and a control unit, and each unit functions as follows:
the detection unit is used for monitoring the battery temperature of the lithium battery;
the acquisition unit is used for acquiring solar input power when the battery temperature meets a preset condition;
and the control unit is used for controlling the auxiliary heating system according to the solar energy input power.
The control device of the lithium battery auxiliary heating system can include, but is not limited to, a processor 30 and a memory 31. It will be understood by those skilled in the art that fig. 3 is only an example of the control device 3 of the lithium battery auxiliary heating system, and does not constitute a limitation to the control device 3 of the lithium battery auxiliary heating system, and may include more or less components than those shown, or combine some components, or different components, for example, the control device of the lithium battery auxiliary heating system may further include an input and output device, a network access device, a bus, and the like.
The Processor 30 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 31 may be an internal storage unit of the control device 3 of the lithium battery auxiliary heating system, for example, a hard disk or a memory of the control device 3 of the lithium battery auxiliary heating system. The memory 31 may also be an external storage device of the control device 3 of the lithium battery auxiliary heating system, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are equipped on the control device 3 of the lithium battery auxiliary heating system. Further, the memory 31 may also include both an internal storage unit and an external storage device of the control device 3 of the lithium battery auxiliary heating system. The memory 31 is used for storing the computer program and other programs and data required by the control device of the lithium battery auxiliary heating system. The memory 31 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A control method of a lithium battery auxiliary heating system is characterized by comprising the following steps:
monitoring the battery temperature of the lithium battery;
when the battery temperature meets a preset condition, acquiring solar input power;
and controlling an auxiliary heating system according to the solar energy input power.
2. The method for controlling the auxiliary heating system of the lithium battery as claimed in claim 1, wherein the obtaining of the solar input power when the battery temperature satisfies a preset condition comprises:
when the temperature of the battery is in a first temperature interval, acquiring solar input power;
the control of the auxiliary heating system according to the solar input power comprises:
operating an auxiliary heating system when the solar input power is greater than a first power threshold.
3. The method for controlling a lithium battery auxiliary heating system according to claim 2, wherein the controlling an auxiliary heating system according to the solar input power comprises:
when the solar input power is less than or equal to a first power threshold, a secondary thermal system is not operated.
4. The method for controlling the auxiliary heating system of the lithium battery as claimed in claim 1, wherein the obtaining of the solar input power when the battery temperature satisfies a preset condition comprises:
when the temperature of the battery is in a second temperature interval, acquiring solar input power;
the control of the auxiliary heating system according to the solar input power comprises:
operating an auxiliary heating system when the solar input power is greater than a second power threshold.
5. The control method of the lithium battery auxiliary heating system as claimed in claim 2 or 4, further comprising, after the operating the auxiliary heating system:
and when the battery temperature is greater than a first temperature threshold value, closing the auxiliary heating system.
6. The method for controlling a lithium battery auxiliary heating system according to claim 4, wherein the controlling an auxiliary heating system according to the solar input power further comprises:
operating a secondary thermal system when the solar input power is greater than or equal to a third power threshold and the solar input power is less than or equal to a second power threshold.
7. The method for controlling a lithium battery auxiliary heating system according to claim 4, wherein the controlling an auxiliary heating system according to the solar input power comprises:
when the solar input power is smaller than the third power threshold, acquiring the current residual electric quantity of the lithium battery;
and when the current residual electric quantity is larger than the electric quantity threshold value, operating the auxiliary heating system.
8. The control method of the lithium battery auxiliary heating system according to claim 6 or 7, further comprising, after the operating the auxiliary heating system:
and when the battery temperature is greater than a second temperature threshold value, closing the auxiliary heating system.
9. A control device of a lithium battery auxiliary heating system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 8.
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