CN115123027A - Power battery pulse heating method and device, terminal and storage medium - Google Patents
Power battery pulse heating method and device, terminal and storage medium Download PDFInfo
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention discloses a pulse heating method, a pulse heating device, a pulse heating terminal and a storage medium for a power battery, which belong to the technical field of power battery heating, and are used for acquiring heating related parameters in heating request data when the heating request data are received; determining heating completion time according to preset heating related parameters, and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time; and heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, acquiring real-time heating data of the power battery, and judging whether to continue heating according to the real-time heating data. The invention carries out intervention control in advance when the pulse self-heating of the electric automobile raises the temperature of the battery, and meets the use convenience and user experience of the electric automobile when the pulse self-heating rate is at the optimal heating rate.
Description
Technical Field
The invention discloses a pulse heating method, a pulse heating device, a pulse heating terminal and a storage medium for a power battery, and belongs to the technical field of power battery heating.
Background
Along with the generation of energy problems, the nation supports the new energy industry greatly, and lithium ion batteries become important energy storage elements due to the advantages of high energy density, low self-discharge rate, no memory effect and the like, and are widely applied to the fields of new energy power stations, electric vehicles and the like.
Under the rapid development of new energy automobiles, complaints of low mileage of continuation of the journey in winter by users are continuously increased. Due to the internal structure and electrochemical properties of lithium batteries, the charge and discharge performance of lithium batteries is a major problem at low temperatures. Due to the fact that the activity of the active material is reduced at low temperature, the internal diffusion rate is reduced, the internal impedance of the lithium ion battery is greatly increased at low temperature, the output power is reduced, and meanwhile the available battery capacity is correspondingly reduced. Meanwhile, the lithium battery is used at low temperature, so that the problems of lithium precipitation of the negative electrode and the like exist, and the low-temperature heating of the lithium battery becomes necessary. And the adoption of an external heating mode has the problem of uneven temperature distribution.
At present, the first mature technology is PTC heating, which generates high temperature by matching a high-resistance conductor with a sufficiently large current, the high temperature heats up a battery by heating a coolant in a battery pack pipeline, and meanwhile, the PTC heating can heat an exchanger of an air conditioning system, and the PTC heating is simple and reliable, but has low energy efficiency and large energy consumption. The second, more mature technology is heat pump heating, which uses the compressor "reverse running" to make the R134a refrigerant absorb heat energy to boil rapidly and generate heat, so as to heat the air or battery in the vehicle. The method has the advantages that the method has ultrahigh energy efficiency, but the ultrahigh energy efficiency is based on the premise of high outdoor temperature, and when the outdoor temperature is lower (-30 to-10 ℃), the heating is not ideal. The third, more mature technique is pulse self-heating, which uses a pulse heating method to achieve rapid heating of the battery. Compared with the prior two technologies, the heating efficiency is higher, but the pulse self-heating does not perform the control of intervention in advance, when the temperature of the battery is lower, the charging capacity is insufficient, the convenience of the use of the electric automobile is directly limited, and particularly in cold winter, the user feeling is seriously influenced by the electric automobile.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pulse heating method, a pulse heating device, a pulse heating terminal and a storage medium for a power battery, and solves the problem that in the prior art, advanced intervention control is not performed only when the pulse self-heating of an electric vehicle is carried out to raise the temperature of the battery.
The technical scheme of the invention is as follows:
according to a first aspect of the embodiments of the present invention, there is provided a power battery pulse heating method, including:
when heating request data are received, heating related parameters in the heating request data are obtained; determining heating completion time according to preset heating related parameters, and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time;
and heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, acquiring real-time heating data of the power battery, and judging whether to continue heating according to the real-time heating data.
Preferably, the heating-related parameters include: the method comprises the following steps of obtaining current power battery temperature, power battery heating target temperature, current power battery state of charge and preset heating rate, wherein the power battery heating real-time data comprise: the real-time heating time of the power battery, the real-time charge state of the power battery, the real-time voltage of the power battery and/or the real-time temperature of the power battery.
Preferably, the determining the heating completion time according to the preset heating related parameters includes:
determining a temperature difference value according to the current power battery temperature and the power battery heating target temperature;
and determining the heating completion time according to the temperature difference and a preset heating rate.
Preferably, the determining the heating completion time according to the preset heating related parameters and determining the pulse heating frequency, the charging current amplitude and the discharging current amplitude according to the heating completion time includes:
judging whether the current power battery charge state judging heating safety threshold is greater than or equal to a charge state heating safety threshold:
if yes, executing the next step;
if not, ending the heating process;
determining the charge state of the power battery at the target moment according to the heating completion time and the current charge state of the power battery;
judging whether the state of charge of the power battery at the target moment is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, adjusting the heating rate, repeatedly acquiring the heating completion time and the SOC of the power battery at the target moment until the SOC meets the SOC safety threshold value which is less than or equal to the SOC safety threshold value, and executing the next step;
and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time.
Preferably, the acquiring real-time heating data of the power battery and determining whether to continue heating according to the real-time heating data of the power battery comprises:
acquiring the real-time heating time of the power battery and judging whether the heating completion time is reached:
if yes, stopping heating and repeatedly receiving heating request data;
if not, executing the next step;
acquiring the real-time state of charge of the power battery, and judging whether the real-time state of charge is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time voltage of the power battery and judging whether the real-time voltage is in a target voltage value range:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time temperature of the power battery, and judging whether the real-time temperature of the power battery is equal to the heating target temperature of the power battery:
if yes, stopping heating and repeatedly receiving heating request data;
and if not, continuing to heat and repeatedly acquiring the real-time heating time of the power battery.
According to a second aspect of the embodiments of the present invention, there is provided a pulse heating device for a power battery, comprising:
the heating device comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for acquiring heating related parameters in heating request data when the heating request data is received;
the determining module is used for determining heating completion time according to preset heating related parameters and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time;
and the judging module is used for heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, acquiring real-time heating data of the power battery and judging whether to continue heating according to the real-time heating data.
Preferably, the determining module is configured to:
judging whether the current power battery charge state judgment heating safety threshold is greater than or equal to a charge state heating safety threshold:
if yes, executing the next step;
if not, ending the heating process;
determining the charge state of the power battery at the target moment according to the heating completion time and the current charge state of the power battery;
judging whether the state of charge of the power battery at the target moment is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, adjusting the heating rate, repeatedly acquiring the heating completion time and the SOC of the power battery at the target moment until the SOC meets the SOC safety threshold value which is less than or equal to the SOC safety threshold value, and executing the next step;
and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time.
Preferably, the determining module is configured to:
acquiring the real-time heating time of the power battery and judging whether the heating completion time is reached:
if yes, stopping heating and repeatedly receiving heating request data;
if not, executing the next step;
acquiring the real-time charge state of the power battery, and judging whether the real-time charge state of the power battery is less than or equal to a charge state safety threshold:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time voltage of the power battery and judging whether the real-time voltage is in a target voltage value range:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time temperature of the power battery, and judging whether the real-time temperature of the power battery is equal to the heating target temperature of the power battery:
if yes, stopping heating and repeatedly receiving heating request data;
and if not, continuing to heat and repeatedly acquiring the real-time heating time of the power battery.
According to a third aspect of the embodiments of the present invention, there is provided a terminal, including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method of the first aspect of the embodiments of the present invention is performed.
According to a fourth aspect of embodiments of the present invention, there is provided a non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of a terminal, enable the terminal to perform the method of the first aspect of embodiments of the present invention.
According to a fifth aspect of embodiments of the present invention, there is provided an application program product, which, when running on a terminal, causes the terminal to perform the method of the first aspect of embodiments of the present invention.
The invention has the beneficial effects that:
the invention discloses a pulse heating method, a pulse heating device, a pulse heating terminal and a storage medium for a power battery, wherein heating related parameters in heating request data are acquired; the method comprises the steps of determining heating completion time according to preset heating related parameters, determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time, heating a power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, obtaining heating real-time data of the power battery, judging whether heating is needed to be continued according to the heating real-time data, carrying out early intervention control when the pulse self-heating of the electric vehicle is carried out to improve the temperature of the battery, and enabling the pulse self-heating rate to meet the use convenience and user experience of the electric vehicle at the optimal heating rate.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
FIG. 1 is a flow chart illustrating a method of pulse heating a power cell in accordance with an exemplary embodiment;
FIG. 2 is a block diagram illustrating a schematic configuration of a power cell pulse heating apparatus according to an exemplary embodiment;
fig. 3 is a schematic block diagram of a terminal structure shown in accordance with an example embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention provides a pulse heating method for a power battery, which is realized by a terminal, wherein the terminal can be a smart phone, a desktop computer or a notebook computer and the like, and at least comprises a CPU (Central processing Unit) and the like.
Example one
Fig. 1 is a flow chart illustrating a power cell pulse heating method for use in a terminal according to an exemplary embodiment, the method including the steps of:
and when the heating request data are received, starting the heating request data acquisition operation, and when a preset heating request data acquisition finishing condition is reached, finishing the heating request data acquisition operation. Heating-related parameters in the heating request data are acquired. Wherein the heating related parameters include: the method comprises the steps of obtaining a current power battery temperature, a power battery heating target temperature, a current power battery state of charge and a preset heating rate.
and determining a temperature difference value according to the current power battery temperature and the power battery heating target temperature, and determining heating completion time according to the temperature difference value and a preset heating rate.
Judging whether the current power battery charge state judging heating safety threshold is greater than or equal to the charge state heating safety threshold:
if yes, executing the next step;
if not, ending the heating process;
determining the charge state of the power battery at the target moment according to the heating completion time and the current charge state of the power battery;
judging whether the state of charge of the power battery at the target moment is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, adjusting the heating rate, repeatedly acquiring the heating completion time and the SOC of the power battery at the target moment until the SOC meets the SOC safety threshold value which is less than or equal to the SOC safety threshold value, and executing the next step;
and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time.
103, heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, acquiring heating real-time data of the power battery, and judging whether to continue heating according to the heating real-time data, wherein the specific contents are as follows:
and obtaining the pulse heating frequency, the charging current amplitude and the discharging current amplitude according to the step 102, and heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude. Then respectively acquiring power battery heating real-time data and judging whether to continue heating according to the power battery heating real-time data, wherein the power battery heating real-time data comprises: the real-time heating time of the power battery, the real-time charge state of the power battery, the real-time voltage of the power battery and/or the real-time temperature of the power battery. The method comprises the following specific steps:
acquiring the real-time heating time of the power battery to judge whether the heating completion time is reached:
if yes, stopping heating and repeatedly receiving heating request data;
if not, executing the next step;
acquiring the real-time charge state of the power battery, and judging whether the real-time charge state of the power battery is less than or equal to a charge state safety threshold:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time voltage of the power battery to judge whether the real-time voltage is in a target voltage value range:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time temperature of the power battery and judging whether the real-time temperature is equal to the heating target temperature of the power battery:
if yes, stopping heating and repeatedly receiving heating request data;
and if not, continuing to heat and repeatedly acquiring the real-time heating time of the power battery.
The invention obtains heating related parameters in the heating request data; the method comprises the steps of determining heating completion time according to preset heating related parameters, determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time, heating a power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, obtaining heating real-time data of the power battery, judging whether heating is needed to be continued according to the heating real-time data, carrying out early intervention control when the pulse self-heating of the electric vehicle is carried out to improve the temperature of the battery, and enabling the pulse self-heating rate to meet the use convenience and user experience of the electric vehicle at the optimal heating rate.
Example two
Fig. 2 is a block diagram schematically illustrating a power battery pulse heating apparatus according to an exemplary embodiment, including:
a receiving module 210, configured to, when heating request data is received, obtain a heating related parameter in the heating request data;
the determining module 220 is configured to determine a heating completion time according to a preset heating related parameter, and determine a pulse heating frequency, a charging current amplitude and a discharging current amplitude according to the heating completion time;
and the judging module 230 is configured to heat the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, obtain real-time heating data of the power battery, and judge whether to continue heating according to the real-time heating data.
Preferably, the determining module 220 is configured to:
judging whether the current power battery charge state judging heating safety threshold is greater than or equal to a charge state heating safety threshold:
if yes, executing the next step;
if not, ending the heating process;
determining the charge state of the power battery at the target moment according to the heating completion time and the current charge state of the power battery;
judging whether the charge state of the power battery at the target moment is less than or equal to a charge state safety threshold value:
if yes, executing the next step;
if not, adjusting the heating rate, repeatedly acquiring the heating completion time and the SOC of the power battery at the target moment until the SOC meets the SOC safety threshold value which is less than or equal to the SOC safety threshold value, and executing the next step;
and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time.
Preferably, the determining module 230 is configured to:
acquiring the real-time heating time of the power battery and judging whether the heating completion time is reached:
if yes, stopping heating and repeatedly receiving heating request data;
if not, executing the next step;
acquiring the real-time state of charge of the power battery, and judging whether the real-time state of charge is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time voltage of the power battery, and judging whether the real-time voltage is in a target voltage value range:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time temperature of the power battery, and judging whether the real-time temperature of the power battery is equal to the heating target temperature of the power battery:
if yes, stopping heating and repeatedly receiving heating request data;
and if not, continuing to heat and repeatedly acquiring the real-time heating time of the power battery.
EXAMPLE III
Fig. 3 is a block diagram of a terminal according to an embodiment of the present application, where the terminal may be the terminal in the foregoing embodiment. The terminal 300 may be a portable mobile terminal such as: smart phones, tablet computers. The terminal 300 may also be referred to by other names such as user equipment, portable terminal, etc.
Generally, the terminal 300 includes: a processor 301 and a memory 302.
The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 301 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.
In some embodiments, the terminal 300 may further include: a peripheral interface 303 and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, touch display screen 305, camera 306, audio circuitry 307, positioning components 308, and power supply 309.
The peripheral interface 303 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the peripheral interface 303 may be implemented on a separate chip or circuit board, which is not limited by the embodiment.
The Radio Frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 304 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 304 converts the electrical signal into an electromagnetic signal for transmission, or converts the received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, various generations of mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 304 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. Touch display screen 305 also has the ability to capture touch signals on or over the surface of touch display screen 305. The touch signal may be input to the processor 301 as a control signal for processing. The touch screen display 305 is used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the touch display screen 305 may be one, providing the front panel of the terminal 300; in other embodiments, the touch display screen 305 may be at least two, respectively disposed on different surfaces of the terminal 300 or in a folded design; in still other embodiments, the touch display 305 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 300. Even more, the touch screen display 305 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The touch Display screen 305 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The camera assembly 306 is used to capture images or video. Optionally, camera assembly 306 includes a front camera and a rear camera. Generally, a front camera is used for realizing video call or self-shooting, and a rear camera is used for realizing shooting of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and each of the rear cameras is any one of a main camera, a depth-of-field camera and a wide-angle camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting function and a VR (Virtual Reality) shooting function. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.
The positioning component 308 is used to locate the current geographic Location of the terminal 300 to implement navigation or LBS (Location Based Service). The Positioning component 308 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.
The power supply 309 is used to supply power to the various components in the terminal 300. The power source 309 may be alternating current, direct current, disposable batteries, or rechargeable batteries. When the power source 309 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the terminal 300 also includes one or more sensors 310. The one is
Example four
In an exemplary embodiment, a computer-readable storage medium is also provided, on which a computer program is stored, which when executed by a processor implements a power cell pulse heating method as provided in all inventive embodiments of the present application.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the 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 the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
EXAMPLE five
In an exemplary embodiment, an application program product is also provided, which includes one or more instructions executable by the processor 301 of the apparatus to perform the above-mentioned pulse heating method for a power battery.
While embodiments of the invention have been disclosed above, it is not intended that they be limited to the applications set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. A pulse heating method for a power battery is characterized by comprising the following steps:
when heating request data are received, heating related parameters in the heating request data are obtained;
determining heating completion time according to preset heating related parameters, and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time;
and heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, acquiring the real-time heating data of the power battery, and judging whether to continue heating according to the real-time heating data.
2. The pulse heating method for the power battery according to claim 1, wherein the heating-related parameters comprise: the method comprises the following steps of obtaining current power battery temperature, power battery heating target temperature, current power battery state of charge and preset heating rate, wherein the power battery heating real-time data comprise: the real-time heating time of the power battery, the real-time charge state of the power battery, the real-time voltage of the power battery and/or the real-time temperature of the power battery.
3. The pulse heating method for the power battery according to claim 2, wherein the determining of the heating completion time according to the preset heating related parameters comprises:
determining a temperature difference value according to the current power battery temperature and the power battery heating target temperature;
and determining the heating completion time according to the temperature difference and a preset heating rate.
4. The pulse heating method of claim 3, wherein the determining of the heating completion time according to the preset heating related parameters and the determining of the pulse heating frequency, the charging current amplitude and the discharging current amplitude according to the heating completion time comprises:
judging whether the current power battery charge state judgment heating safety threshold is greater than or equal to a charge state heating safety threshold:
if yes, executing the next step;
if not, ending the heating process;
determining the charge state of the power battery at the target moment according to the heating completion time and the current charge state of the power battery;
judging whether the state of charge of the power battery at the target moment is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, adjusting the heating rate, repeatedly acquiring the heating completion time and the SOC of the power battery at the target moment until the SOC meets the SOC safety threshold value which is less than or equal to the SOC safety threshold value, and executing the next step;
and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time.
5. The pulse heating method for the power battery according to claim 4, wherein the step of acquiring real-time heating data of the power battery and judging whether heating is required to be continued according to the real-time heating data comprises the following steps:
acquiring the real-time heating time of the power battery and judging whether the heating completion time is reached:
if yes, stopping heating and repeatedly receiving heating request data;
if not, executing the next step;
acquiring the real-time charge state of the power battery, and judging whether the real-time charge state of the power battery is less than or equal to a charge state safety threshold:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time voltage of the power battery and judging whether the real-time voltage is in a target voltage value range:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time temperature of the power battery, and judging whether the real-time temperature of the power battery is equal to the heating target temperature of the power battery:
if yes, stopping heating and repeatedly receiving heating request data;
and if not, continuing to heat and repeatedly acquiring the real-time heating time of the power battery.
6. A power battery pulse heating device, characterized by comprising:
the heating device comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for acquiring heating related parameters in heating request data when the heating request data is received;
the determining module is used for determining heating completion time according to preset heating related parameters and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time;
and the judging module is used for heating the power battery according to the pulse heating frequency, the charging current amplitude and the discharging current amplitude, acquiring real-time heating data of the power battery and judging whether to continue heating according to the real-time heating data.
7. The pulse heating device for the power battery of claim 6, wherein the determining module is configured to:
judging whether the current power battery charge state judgment heating safety threshold is greater than or equal to a charge state heating safety threshold:
if yes, executing the next step;
if not, ending the heating process;
determining the charge state of the power battery at the target moment according to the heating completion time and the current charge state of the power battery;
judging whether the state of charge of the power battery at the target moment is less than or equal to a state of charge safety threshold:
if yes, executing the next step;
if not, adjusting the heating rate, repeatedly acquiring the heating completion time and the SOC of the power battery at the target moment until the SOC meets the SOC safety threshold value which is less than or equal to the SOC safety threshold value, and executing the next step;
and determining pulse heating frequency, charging current amplitude and discharging current amplitude according to the heating completion time.
8. The pulse heating device for the power battery according to claim 7, wherein the judging module is configured to:
acquiring the real-time heating time of the power battery and judging whether the heating completion time is reached:
if yes, stopping heating and repeatedly receiving heating request data;
if not, executing the next step;
acquiring the real-time charge state of the power battery, and judging whether the real-time charge state of the power battery is less than or equal to a charge state safety threshold:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time voltage of the power battery and judging whether the real-time voltage is in a target voltage value range:
if yes, executing the next step;
if not, stopping heating;
acquiring the real-time temperature of the power battery, and judging whether the real-time temperature of the power battery is equal to the heating target temperature of the power battery:
if yes, stopping heating and repeatedly receiving heating request data;
and if not, continuing to heat and repeatedly acquiring the real-time heating time of the power battery.
9. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
a method of performing pulse heating of a power cell according to any one of claims 1 to 5.
10. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform a method of pulse heating a power cell according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210649192.3A CN115123027A (en) | 2022-06-09 | 2022-06-09 | Power battery pulse heating method and device, terminal and storage medium |
| PCT/CN2023/093409 WO2023236715A1 (en) | 2022-06-09 | 2023-05-11 | Pulse heating method and apparatus for traction battery, and terminal and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210649192.3A CN115123027A (en) | 2022-06-09 | 2022-06-09 | Power battery pulse heating method and device, terminal and storage medium |
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| CN115123027A true CN115123027A (en) | 2022-09-30 |
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| CN202210649192.3A Pending CN115123027A (en) | 2022-06-09 | 2022-06-09 | Power battery pulse heating method and device, terminal and storage medium |
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| Country | Link |
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| CN (1) | CN115123027A (en) |
| WO (1) | WO2023236715A1 (en) |
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| WO2023236715A1 (en) * | 2022-06-09 | 2023-12-14 | 中国第一汽车股份有限公司 | Pulse heating method and apparatus for traction battery, and terminal and storage medium |
| WO2024221154A1 (en) * | 2023-04-24 | 2024-10-31 | 宁德时代新能源科技股份有限公司 | Power supply method, apparatus and system, and electric device, storage medium and program product |
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Also Published As
| Publication number | Publication date |
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| WO2023236715A1 (en) | 2023-12-14 |
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