Automatic heat balance charging method and device, equipment, storage medium and product

Abstract

The invention discloses an automatic heat balance charging method and device, equipment, a storage medium and a product, and relates to the technical field of vehicle battery charging, and the automatic heat balance charging method comprises the steps that when the charging time of a battery is smaller than the preset charging time, an energy-saving mode is started; in the energy-saving mode, determining a variable adaptive charging current of the battery in a charging state; and determining the charging current of the battery based on a preset charging threshold range and the variable adaptive charging current. In the energy-saving mode, the battery of the vehicle is charged through the variable adaptive charging current, so that extra energy consumption caused by the fact that an air conditioner is started to cool the battery is avoided, meanwhile, the heat dissipating capacity and the heat productivity of battery charging are dynamically balanced, and the situation that the charging efficiency is reduced due to the fact that the temperature of the battery rises in the battery charging process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle battery charging, and in particular to an automatic thermal balance charging method, device, equipment, storage medium and product. Background Art

[0002] With the increasing awareness of environmental protection and energy conservation among consumers, as well as the fluctuation of oil prices in the market, new energy vehicles are becoming more popular due to their economy and environmental protection. In the selection and use of new energy vehicles, the performance of the battery is an extremely important reference parameter. How to optimize the charging process of new energy vehicle batteries has become the research focus of major car manufacturers.

[0003] In the existing new energy vehicle battery charging process, the current is generally a fixed value. As the charging process proceeds, the battery will generate a lot of heat, so the cooling system including the water pump and air conditioner must be started to reduce the battery temperature. However, turning on the air conditioner for cooling will generate a lot of electrical energy, and the heat generated by the battery will also reduce the charging efficiency, making the battery charging effect unsatisfactory. Summary of the invention

[0004] The main purpose of this application is to provide an automatic thermal balance charging method, device, equipment, storage medium and product, aiming to solve the technical problems that the existing battery charging current is generally a fixed value, the water pump and air conditioner need to be turned on for cooling during the charging process, and the charging efficiency is low.

[0005] To achieve the above objectives, the present application proposes an automatic thermal balance charging method, which includes:

[0006] When the battery charging time is less than the preset charging time, the energy saving mode is turned on;

[0007] In the energy saving mode, determining a variable adaptive charging current of the battery in a charging state;

[0008] A charging current of the battery is determined based on a preset charging threshold range and the variable adaptive charging current.

[0009] In one embodiment, the step of determining the charging current of the battery based on a preset charging threshold range and the variable adaptive charging current includes:

[0010] Determine a preset charging threshold range in energy saving mode;

[0011] Determine a maximum charging current and a minimum charging current based on the preset charging threshold range;

[0012] If the variable adaptive charging current is greater than the maximum charging current, the maximum charging current is used as the charging current of the battery;

[0013] If the variable adaptive charging current is less than the minimum charging current, the minimum charging current is used as the charging current of the battery;

[0014] If the variable adaptive charging current is between the maximum charging current and the minimum charging current, the variable adaptive charging current is used as the charging current of the battery.

[0015] In one embodiment, the step of determining the variable adaptive charging current of the battery in a charging state comprises:

[0016] determining a heat generation of the battery in a charging state;

[0017] determining the amount of heat released by the battery when it is in a charging state;

[0018] A variable adaptive charging current of the battery in a charging state is determined based on the heat release and heat generation of the battery.

[0019] In one embodiment, the step of determining the heat generated by the battery in a charging state includes:

[0020] Obtaining a battery cell operating voltage of the battery;

[0021] Obtaining the remaining power status of the battery;

[0022] Determining a battery open circuit voltage of the battery based on the remaining power state;

[0023] The heat generated by the battery in a charging state is determined based on the battery open circuit voltage and the battery cell operating voltage.

[0024] In one embodiment, the step of determining the amount of heat released by the battery in a charging state includes:

[0025] Obtaining a heat release compensation factor and a battery thermal conductivity coefficient of the battery;

[0026] determining a cell temperature and a coolant temperature of the battery;

[0027] Obtaining a heat transfer distance from a battery cell to a coolant;

[0028] The amount of heat released by the battery in a charging state is determined based on the battery cell temperature, the coolant temperature, the heat transfer distance, the heat release compensation factor, and the battery thermal conductivity coefficient.

[0029] In one embodiment, the method further comprises:

[0030] Get the battery temperature and remaining power;

[0031] Determining an operating temperature range and a remaining power range of the battery in an energy-saving mode;

[0032] If the temperature is within the operating temperature range and the remaining power is within the remaining power range, the step of determining a variable adaptive charging current of the battery in a charging state is performed.

[0033] In addition, to achieve the above-mentioned purpose, the present application also proposes an automatic thermal balance charging device, the automatic thermal balance charging device comprising:

[0034] A mode conversion module, used to turn on the energy-saving mode when the charging time of the battery is less than the preset charging time;

[0035] A calculation module, used for determining a variable adaptive charging current of the battery in a charging state in an energy-saving mode;

[0036] The thermal balance module is used to determine the charging current of the battery based on a preset charging threshold range and the variable adaptive charging current.

[0037] In addition, to achieve the above-mentioned purpose, the present application also proposes an automatic thermal balance charging device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the automatic thermal balance charging method described above.

[0038] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the automatic thermal balance charging method described above are implemented.

[0039] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the automatic thermal balance charging method described above are implemented.

[0040] One or more technical solutions proposed in this application have at least the following technical effects:

[0041] The present application starts the energy-saving mode when the charging time of the battery is less than the preset charging time; in the energy-saving mode, determines the variable adaptive charging current of the battery in the charging state; and determines the charging current of the battery based on the preset charging threshold range and the variable adaptive charging current. Since the battery of the vehicle is charged with the variable adaptive charging current in the energy-saving mode, the extra energy consumption caused by turning on the air conditioner to cool the battery is avoided, and at the same time, the heat dissipation and heat generation of the battery charging are dynamically balanced, avoiding the reduction of charging efficiency due to the temperature rise of the battery during the battery charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0044] Figure 1 A schematic diagram of a flow chart provided for the first embodiment of the automatic thermal balance charging method of the present application;

[0045] Figure 2 A schematic diagram of a flow chart provided for the second embodiment of the automatic thermal balance charging method of the present application;

[0046] Figure 3 A schematic diagram of a flow chart provided for the third embodiment of the automatic thermal balance charging method of the present application;

[0047] Figure 4 This is a schematic diagram of the module structure of the automatic thermal balance charging device of the embodiment of the present application;

[0048] Figure 5 Schematic diagram of the device structure of the hardware operating environment involved in the automatic thermal balance charging method in the embodiment of the present application.

[0049] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0051] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0052] The main solution of the embodiment of the present application is: when the charging time of the battery is less than the preset charging time, turn on the energy-saving mode; in the energy-saving mode, determine the variable adaptive charging current of the battery in the charging state; determine the charging current of the battery based on the preset charging threshold range and the variable adaptive charging current.

[0053] In the current existing technology, during the charging process, the current is generally a fixed value. As the charging process proceeds, the battery will generate a lot of heat, so the cooling system must be started, including a water pump and an air-conditioning system, to lower the temperature of the battery. However, turning on the air conditioner for cooling will consume a lot of electricity, and the heat generated by the battery will also reduce the charging efficiency.

[0054] The present application provides a solution, which is to charge in energy-saving mode without turning on the air conditioner and only turning on the cold water pump, and automatically adjust the charging current according to the real-time changing battery temperature gradient, so that the heat generation rate of the battery is always equal to the heat dissipation rate of the battery, maintain the temperature of the battery stable, thereby improving the charging efficiency and saving energy consumption.

[0055] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a vehicle-mounted terminal, a server connected to the vehicle-mounted terminal, etc., or an electronic device capable of realizing the above functions, a virtual device, etc. The following takes an automatic thermal balance charging device (referred to as charging device) as an example to illustrate this embodiment and the following embodiments.

[0056] Based on this, the embodiment of the present application provides an automatic thermal balance charging method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the automatic thermal balance charging method of the present application.

[0057] In this embodiment, the automatic thermal balance charging method includes steps S10 to S30:

[0058] Step S10, when the charging time of the battery is less than the preset charging time, turning on the energy saving mode;

[0059] It should be noted that, in actual applications, a preset charging time can be set according to charging requirements, and the preset charging time is also the charging time when the battery is in energy-saving mode. When the vehicle battery is charging, the charging device can record the charging time of the battery, and when the charging time is less than the preset charging time, charging can be performed in energy-saving mode.

[0060] It should be understood that the preset charging time may be set by the vehicle manufacturer at the time of leaving the factory, or may be set by the user himself, and the embodiments of the present application are not limited to this.

[0061] It should be noted that, generally speaking, when charging, the vehicle can turn on the cooling system to cool the battery through the water pump and air conditioning to avoid the temperature rise during the charging process leading to a decrease in charging efficiency. When the water pump and air conditioning are turned on, the battery is in normal charging mode. When the charging mode is energy-saving mode, the charging equipment only turns on the water pump to cool the charging process, and does not use the air conditioning, thereby avoiding energy consumption caused by turning on the air conditioning.

[0062] In a specific implementation, the charging device of the embodiment of the present application can record the charging time of the battery. When the charging time of the battery is less than the preset charging time, charging is performed in energy-saving mode, thereby avoiding additional energy consumption caused by air conditioning cooling.

[0063] It should be understood that in energy-saving mode, charging with a conventional fixed current will cause the battery to continue to heat up, thereby affecting the charging efficiency of the battery. Therefore, the present application can further perform step S20 to determine a variable adaptive charging current of the battery in the charging state in energy-saving mode.

[0064] It should be noted that in energy-saving mode, the charging equipment can monitor the battery temperature gradient during the battery charging process, and then automatically adjust the current based on the battery temperature gradient, that is, charge the battery through a variable adaptive charging current, so that the heat generation and heat dissipation during the battery charging process are dynamically balanced, thereby achieving automatic thermal balance during the battery charging process.

[0065] In a specific implementation, when the charging device of the embodiment of the present application is in energy-saving mode, it can monitor the battery temperature gradient and then determine the variable adaptive charging current of the battery charging process, thereby achieving thermal balance during the battery charging process and avoiding the reduction of battery charging efficiency due to temperature increase.

[0066] Step S30, determining the charging current of the battery based on a preset charging threshold range and the variable adaptive charging current.

[0067] It should be noted that the above-mentioned preset charging threshold range is a range that can limit the charging current during the battery charging process. The preset charging threshold range can be set based on prior knowledge or determined based on a deep learning algorithm, and the present application embodiment does not limit this.

[0068] In an implementation of the embodiment of the present application, the step of determining the charging current of the battery based on the preset charging threshold range and the variable adaptive charging current includes:

[0069] Determine a preset charging threshold range in energy saving mode;

[0070] Determine the maximum charging current and the minimum charging current based on the preset charging threshold range;

[0071] If the variable adaptive charging current is greater than the maximum charging current, then use the maximum charging current as the charging current of the battery;

[0072] If the variable adaptive charging current is less than the minimum charging current, then use the minimum charging current as the charging current of the battery;

[0073] If the variable adaptive charging current is between the maximum charging current and the minimum charging current, then use the variable adaptive charging current as the charging current of the battery.

[0074] It should be noted that when determining the preset charging threshold range in the energy-saving mode, the maximum charging current and the minimum charging current in the energy-saving mode can be determined based on this preset charging range. The maximum charging current and the minimum charging current can be set according to the material characteristics of the battery, the battery capacity, etc., and the embodiments of the present application do not limit this.

[0075] It can be understood that when the variable adaptive charging current I is greater than the maximum charging current Imax, that is, I > Imax, the maximum charging current can be used as the current charging current of the battery; when the variable adaptive charging current I is less than the minimum charging current Imin, that is, I < Imin, the minimum charging current can be used as the current charging current of the battery; when the variable adaptive charging current I is between the maximum charging current Imax and the minimum charging current Imin, that is, Imin ≤ I ≤ Imax, the variable adaptive charging current is used as the current charging current of the battery.

[0076] It should be noted that by comparing the variable adaptive charging current with the preset charging threshold range, the current charging current of the battery is determined, thereby improving the charging efficiency of the battery.

[0077] In the embodiments of the present application, when the charging time of the battery is less than the preset charging time, the energy-saving mode is turned on; in the energy-saving mode, the variable adaptive charging current of the battery in the charging state is determined; the charging current of the battery is determined based on the preset charging threshold range and the variable adaptive charging current. Since the battery is charged by the variable adaptive charging current in the energy-saving mode, the additional energy consumption caused by turning on the air conditioner for battery cooling is avoided, and at the same time, the heat dissipation and heat generation of the battery charging reach a dynamic balance, avoiding the reduction of the charging efficiency due to the battery temperature rise during the battery charging process.

[0078] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 In an embodiment of the present application, the step of determining a variable adaptive charging current of the battery in a charging state includes:

[0079] Step S21, determining the heat generated by the battery in a charging state;

[0080] It is understandable that during the charging process of the battery, a certain amount of heat will be generated due to factors such as the chemical reaction inside the battery and the battery passing through the internal resistance. The magnitude of the charging current can directly affect the rate of the electrochemical reaction inside the battery and the heat generated when the battery passes through the internal resistance. The larger the charging current, the more intense the electrochemical reaction inside the battery, and the more heat the battery generates when passing through the internal resistance. Specifically, in order to determine the heat generated by the battery in the charging state, the step of determining the heat generated by the battery in the charging state includes:

[0081] Obtaining a battery cell operating voltage of the battery;

[0082] Obtaining the remaining power status of the battery;

[0083] Determining a battery open circuit voltage of the battery based on the remaining power state;

[0084] The heat generated by the battery in a charging state is determined based on the battery open circuit voltage and the battery cell operating voltage.

[0085] It should be noted that the single cell operating voltage of a vehicle battery, that is, the load voltage of a single battery, refers to the terminal voltage of the vehicle battery in a discharge state after the load is connected. The single cell operating voltage is one of the important parameters for measuring the performance of a vehicle battery, and can reflect the energy output capacity of the battery under actual working conditions. The single cell operating voltage of the battery is related to parameters such as the battery type, battery status, load demand, and ambient temperature, and its actual value is not limited in the embodiments of this application.

[0086] It is understandable that the remaining charge state of a battery, i.e., the available state of the remaining charge in the battery, can be represented by the SOC value of the battery. The open circuit voltage of a battery refers to the battery difference between the positive and negative electrodes of the battery when the battery is not connected to an external circuit. During the battery charging process, as the remaining charge state of the battery changes, its open circuit voltage will also rise accordingly. By monitoring the battery SOC value, the open circuit voltage of the battery can be determined.

[0087] It should be noted that when determining the remaining power state of the battery, the battery open circuit voltage of the battery can be determined based on the remaining power state. The battery open circuit voltage can be determined by table lookup or based on a neural network model, which is not limited in the present embodiment.

[0088] It should be explained that the heat generated by the battery in the charging state can be determined based on the single-cell operating voltage of the battery, the variable adaptive charging current of the battery, and the open circuit voltage of the battery.

[0089] Specifically, the calculation method of the heat generation Q1 of the battery in the charging state in this application can be as follows:

[0090] Q1 = (UV) * I;

[0091] Among them, Q1 is the heat generation, U is the single-cell operating voltage of the battery, V is the battery open circuit voltage, and I is the variable adaptive charging current.

[0092] Step S22, determining the amount of heat released by the battery in a charging state;

[0093] It should be noted that in the energy-saving mode, the charging device uses a water pump to dissipate heat from the battery. At this time, the discharge amount of the battery is related to the relevant parameters of the coolant. Specifically, in order to determine the heat released by the battery in the charging state, the step of determining the heat released by the battery in the charging state includes:

[0094] Obtaining a heat release compensation factor and a battery thermal conductivity coefficient of the battery;

[0095] determining a cell temperature and a coolant temperature of the battery;

[0096] Obtaining a heat transfer distance from a battery cell to a coolant;

[0097] The amount of heat released by the battery in a charging state is determined based on the battery cell temperature, the coolant temperature, the heat transfer distance, the heat release compensation factor, and the battery thermal conductivity coefficient.

[0098] It should be noted that during the battery charging process, the changes in charging current and battery temperature will cause differences in the heat release rate of the battery. The heat release compensation factor is a parameter for compensating for the heat release during the battery charging process. The value of the heat release compensation factor can be determined according to the actual application situation, and the embodiment of the present application is not limited to this.

[0099] It can be understood that the above-mentioned battery thermal conductivity coefficient is also the heat conductivity coefficient of the battery in the process of heat dissipation through the water pump. The thermal conductivity coefficient is related to parameters such as the battery structure and the coolant type. The embodiment of the present application is not limited to this and can be changed accordingly according to the actual application situation.

[0100] Specifically, the calculation method of the heat release Q2 of the battery in the charging state in this application can be as follows:

[0101] Q2=(L*K*ΔT) / x;

[0102] Among them, Q2 is the heat release, L is the heat release compensation factor, K is the battery thermal conductivity coefficient, x is the distance from the battery cell to the coolant, ΔT=T1-T2, T1 is the battery cell temperature, and T2 is the battery coolant temperature.

[0103] Step S23, determining a variable adaptive charging current of the battery in a charging state based on the heat release and heat generation of the battery.

[0104] It should be noted that in order to achieve thermal balance during the battery charging process, the heat release and heat generation during the charging process need to be equal, that is, Q1 and Q2 are equal. Since the battery's single-cell operating voltage, battery cell temperature, battery coolant temperature, battery thermal conductivity, heat release compensation factor, and battery-to-cell distance are all known or measurable, the variable adaptive charging current of the battery can be determined. Specifically, the calculation method of the variable adaptive charging current I can be as follows:

[0105]

[0106] The embodiment of the present application determines the heat generated by the battery in the charging state; determines the heat released by the battery in the charging state; and determines the variable adaptive charging current of the battery in the charging state based on the heat released and heat generated by the battery. Since the variable adaptive charging current of the battery in the charging state is determined based on the balance between the heat released and heat generated by the battery, the charging efficiency of the battery is improved.

[0107] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those of the above-mentioned first embodiment and / or the second embodiment can refer to the above introduction, and will not be repeated later. Figure 3 In an embodiment of the present application, the method further includes:

[0108] Step S100, obtaining the temperature and remaining power of the battery;

[0109] Step S200, determining an operating temperature range and a remaining power range of the battery in an energy-saving mode;

[0110] Step S300: If the temperature is within the operating temperature range and the remaining power is within the remaining power range, executing the step of determining a variable adaptive charging current of the battery in a charging state.

[0111] It should be noted that in the application embodiment, in order to further improve the charging efficiency, the operating temperature range and the remaining power range of the battery in the energy-saving mode can be preset. Based on the preset operating temperature range, the minimum operating temperature and the maximum operating temperature in the energy-saving mode can be determined. When the battery temperature is lower than the minimum operating temperature, it may not be necessary to cool the battery, that is, the cooling system is not turned on; when the battery temperature is within the operating temperature range, the energy-saving mode is turned on to manage the battery temperature; when the battery temperature is higher than the maximum operating temperature, it can be said that the energy-saving mode may not be able to meet the battery cooling requirements, and the cooling system needs to enter the normal mode for cooling, that is, turn on the water pump and air conditioner for cooling.

[0112] Likewise, based on the remaining power range, a maximum remaining power value and a minimum remaining power value in the energy saving mode may be determined.

[0113] It can be understood that the remaining power of the battery can be determined based on the remaining power status. When the remaining power of the battery is less than the minimum remaining power, it means that the current remaining power of the battery is too low and may need to be charged quickly. In the fast charging mode, the heat generated by the battery is high, and the cooling system needs to enter the normal mode for cooling, that is, turn on the water pump and air conditioner for cooling; when the remaining power of the battery is within the remaining power range, the energy-saving mode is turned on for battery temperature management; when the remaining power of the battery is greater than the maximum remaining power, the battery can enter the trickle charging mode. At this time, the heat generated during the charging process is low and the cooling system can be turned off.

[0114] It should be understood that when the temperature and remaining power of the battery meet the conditions at the same time, the charging device can enter the energy-saving mode for charging to improve the charging efficiency while reducing energy consumption.

[0115] The embodiment of the present application obtains the temperature and remaining power of the battery; determines the operating temperature range and remaining power range of the battery in the energy-saving mode; and if the temperature is within the operating temperature range and the remaining power is within the remaining power range, performs the step of determining the variable adaptive charging current of the battery in the charging state. Since whether to enter the energy-saving mode for charging is determined based on the temperature and remaining power of the battery, the applicability of the automatic thermal balance charging method is improved.

[0116] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the automatic thermal balance charging method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0117] This application also provides an automatic thermal balance charging device, please refer to Figure 4 , the automatic thermal balance charging device comprises:

[0118] The mode conversion module 10 is used to turn on the energy-saving mode when the charging time of the battery is less than the preset charging time;

[0119] A calculation module 20, used to determine a variable adaptive charging current of the battery in a charging state in an energy-saving mode;

[0120] The thermal balance module 30 is used to determine the charging current of the battery based on a preset charging threshold range and the variable adaptive charging current.

[0121] The automatic thermal balance charging device provided by the present application adopts the automatic thermal balance charging method in the above embodiment, which can solve the technical problems that the existing battery charging current is generally a fixed value, the water pump and air conditioner need to be turned on for cooling during the charging process, and the charging efficiency is low. Compared with the prior art, the beneficial effects of the automatic thermal balance charging device provided by the present application are the same as the beneficial effects of the automatic thermal balance charging method provided by the above embodiment, and the other technical features of the automatic thermal balance charging device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0122] The present application provides an automatic thermal balance charging device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the automatic thermal balance charging method in the above-mentioned embodiment 1.

[0123] Reference below Figure 5 , which shows a schematic diagram of the structure of an automatic thermal balance charging device suitable for implementing the embodiment of the present application. The automatic thermal balance charging device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The automatic thermal balance charging device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0124] like Figure 5 As shown, the automatic thermal balance charging device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the automatic thermal balance charging device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the automatic thermal balancing charging device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an automatic thermal balancing charging device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0125] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0126] The automatic thermal balance charging device provided by the present application adopts the automatic thermal balance charging method in the above embodiment, which can solve the technical problems that the existing battery charging current is generally a fixed value, the water pump and air conditioner need to be turned on for cooling during the charging process, and the charging efficiency is low. Compared with the prior art, the beneficial effects of the automatic thermal balance charging device provided by the present application are the same as the beneficial effects of the automatic thermal balance charging method provided by the above embodiment, and the other technical features of the automatic thermal balance charging device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0127] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0128] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0129] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the automatic thermal balance charging method in the above-mentioned embodiment.

[0130] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0131] The computer-readable storage medium may be included in the automatic thermal balance charging device; or may exist independently without being assembled into the automatic thermal balance charging device.

[0132] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the automatic thermal balance charging device, the automatic thermal balance charging device:

[0133] When the battery charging time is less than the preset charging time, the energy saving mode is turned on;

[0134] In the energy saving mode, determining a variable adaptive charging current of the battery in a charging state;

[0135] A charging current of the battery is determined based on a preset charging threshold range and the variable adaptive charging current.

[0136] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0137] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0138] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0139] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned automatic thermal balance charging method, and can solve the technical problems that the existing battery charging current is generally a fixed value, the water pump and air conditioner need to be turned on for cooling during the charging process, and the charging efficiency is low. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the automatic thermal balance charging method provided by the above-mentioned embodiment, and will not be repeated here.

[0140] The present application also provides a computer program product, including a computer program, which implements the steps of the automatic thermal balance charging method as described above when executed by a processor.

[0141] The computer program product provided by the present application can solve the technical problems that the existing battery charging current is generally a fixed value, the water pump and air conditioner need to be turned on for cooling during the charging process, and the charging efficiency is low. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the automatic thermal balance charging method provided by the above embodiment, and will not be repeated here.

[0142] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An automatic thermal balance charging method, characterized in that: The method comprises: When the battery charging time is less than the preset charging time, the energy saving mode is turned on; In the energy saving mode, determining a variable adaptive charging current of the battery in a charging state; A charging current of the battery is determined based on a preset charging threshold range and the variable adaptive charging current.

2. The automatic thermal balance charging method according to claim 1, characterized in that: The step of determining the charging current of the battery based on the preset charging threshold range and the variable adaptive charging current comprises: Determine a preset charging threshold range in energy saving mode; Determine a maximum charging current and a minimum charging current based on the preset charging threshold range; If the variable adaptive charging current is greater than the maximum charging current, the maximum charging current is used as the charging current of the battery; If the variable adaptive charging current is less than the minimum charging current, the minimum charging current is used as the charging current of the battery; If the variable adaptive charging current is between the maximum charging current and the minimum charging current, the variable adaptive charging current is used as the charging current of the battery.

3. The automatic thermal balance charging method according to claim 1, characterized in that: The step of determining a variable adaptive charging current of the battery in a charging state comprises: determining a heat generation of the battery in a charging state; determining the amount of heat released by the battery when it is in a charging state; A variable adaptive charging current of the battery in a charging state is determined based on the heat release and heat generation of the battery.

4. The automatic thermal balance charging method according to claim 3, characterized in that: The step of determining the amount of heat generated by the battery in a charging state comprises: Obtaining a battery cell operating voltage of the battery; Obtaining the remaining power status of the battery; Determining a battery open circuit voltage of the battery based on the remaining power state; The heat generated by the battery in a charging state is determined based on the battery open circuit voltage and the battery cell operating voltage.

5. The automatic thermal balance charging method according to claim 3, characterized in that: The step of determining the amount of heat released by the battery in a charging state comprises: Obtaining a heat release compensation factor and a battery thermal conductivity coefficient of the battery; determining a cell temperature and a coolant temperature of the battery; Obtaining a heat transfer distance from a battery cell to a coolant; The amount of heat released by the battery in a charging state is determined based on the battery cell temperature, the coolant temperature, the heat transfer distance, the heat release compensation factor, and the battery thermal conductivity coefficient.

6. The automatic thermal balance charging method according to claim 1, characterized in that: The method further comprises: Get the battery temperature and remaining power; Determining an operating temperature range and a remaining power range of the battery in an energy-saving mode; If the temperature is within the operating temperature range and the remaining power is within the remaining power range, the step of determining a variable adaptive charging current of the battery in a charging state is performed.

7. An automatic thermal balance charging device, characterized in that: The automatic thermal balance charging device comprises: A mode conversion module, used to turn on the energy-saving mode when the charging time of the battery is less than the preset charging time; A calculation module, used for determining a variable adaptive charging current of the battery in a charging state in an energy-saving mode; The thermal balance module is used to determine the charging current of the battery based on a preset charging threshold range and the variable adaptive charging current.

8. An automatic thermal balance charging device, characterized in that: The device comprises: a memory, a processor, and an automatic thermal balance charging program stored in the memory and executable on the processor, wherein the automatic thermal balance charging program is configured to implement the steps of the automatic thermal balance charging method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores an automatic thermal balance charging program, and when the automatic thermal balance charging program is executed by the processor, the steps of the automatic thermal balance charging method according to any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the automatic thermal balance charging method according to any one of claims 1 to 6 are implemented.

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