CN118418809A - Method, apparatus, device and computer readable storage medium for charging battery of vehicle - Google Patents
Method, apparatus, device and computer readable storage medium for charging battery of vehicle Download PDFInfo
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Abstract
Embodiments of the present disclosure provide a battery charging method, apparatus, device, and computer-readable storage medium for a vehicle. The method comprises the following steps: judging whether the vehicle needs additional current or not in the process of starting and charging the battery and/or in the process of charging the battery, wherein the additional current is used for meeting the heat exchange requirement of the vehicle; if so, calculating extra current according to the heat exchange requirement; determining a required charging current for the battery; obtaining a request current according to the extra current and the charging current; the request current is sent to the charging stake so that the charging stake provides the request current to the vehicle. In this way, the charging pile can provide the vehicle with the current which can meet the charging requirement and the heat exchange requirement, so that even if one part of the request current provided by the charging pile is used for vehicle heat exchange, the other part of the request current enters the battery to meet the charging requirement, and the charging speed can be prevented from being delayed as much as possible.
Description
Technical Field
The present disclosure relates to the field of vehicle control, and in particular, to the field of battery charging technology.
Background
In the current charging strategy, the charging current required by the battery is only sent to the charging pile when the vehicle starts to charge or charges, so that the charging pile provides current for charging, however, when the charging or charging process is started, the vehicle may have heat exchange requirements such as heating/cooling of the battery or opening of an air conditioner by a user, at this time, a part of the charging current provided by the charging pile for the battery is used for heating/cooling the battery or using the air conditioner, and the current entering the battery cannot meet the charging requirements naturally, so that the charging speed is delayed.
Disclosure of Invention
The present disclosure provides a battery charging method, apparatus, device, storage medium and vehicle for a vehicle.
According to a first aspect of the present disclosure, a battery charging method of a vehicle is provided. The method comprises the following steps:
judging whether the vehicle needs additional current or not in the process of starting and charging the battery and/or in the process of charging the battery, wherein the additional current is used for meeting the heat exchange requirement of the vehicle;
If so, calculating the additional current according to the heat exchange requirement;
determining a required charging current for the battery;
Obtaining a request current according to the additional current and the charging current;
and sending the request current to a charging pile so that the charging pile provides the request current for the vehicle.
Aspects and any one of the possible implementations as described above, further provide an implementation, the heat exchange requirement includes: heat exchange of the liquid cooling system;
determining whether the vehicle requires additional current during the battery start-up charging process and/or charging process includes:
acquiring the current temperature of the battery in the process of starting and/or charging the battery;
Judging whether the current temperature of the battery is matched with the proper working temperature of the battery;
If not, additional current is required, otherwise no additional current is required.
Aspects and any one of the possible implementations as described above, further providing an implementation, the calculating the additional current according to the heat exchange requirement, includes:
acquiring attribute information of the battery in the process of starting and charging, wherein the attribute information comprises at least one of the current temperature, the environment temperature, the proper working temperature, the current voltage of the battery, the rated power of a liquid cooling system of the battery, the temperature of cooling liquid of the liquid cooling system and the contact area of the liquid cooling system and the battery;
Calculating the current heat exchange power of the liquid cooling system according to the attribute information of the battery;
Or alternatively
In the charging process, acquiring the specific heat capacity of the cooling liquid of the liquid cooling system;
obtaining the current heat exchange power according to the specific heat capacity of the cooling liquid, the water inlet and outlet temperature of the liquid cooling system and the cooling liquid flow rate of the liquid cooling system;
And calculating the heat exchange current required by the liquid cooling system according to the current heat exchange power and the current voltage of the battery.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the determining whether the vehicle needs additional current during the battery start charging process and/or the charging process includes:
judging whether an air conditioner of the vehicle is started in the charging process;
If so, confirming that additional current is needed, wherein the heat exchange requirement comprises air conditioner heat exchange.
Aspects and any one of the possible implementations as described above, further providing an implementation, the calculating the additional current according to the heat exchange requirement, includes:
searching an air conditioner power meter according to the working mode of the air conditioner, the set temperature of a user and the current environment temperature to obtain the corresponding working power of the air conditioner;
and calculating the heat exchange current required by the heat exchange of the air conditioner according to the working power of the air conditioner and the current voltage of the battery.
In an aspect and any possible implementation manner as described above, there is further provided an implementation manner, according to the additional current and the charging current, obtaining a request current, including:
And carrying out summation operation on at least one additional current corresponding to the heat exchange requirement and the charging current to obtain the request current.
In accordance with aspects and any one of the possible implementations described above, there is further provided an implementation, according to the heat exchange requirement, calculating the additional current includes:
searching a preset air conditioner power meter according to a first preset period by utilizing the heat exchange requirement to calculate the heat exchange current;
Determining the heat exchange current as the additional current;
The method further comprises the steps of:
And updating the request current according to a second preset period while the request current is sent to the charging pile according to the first preset period, wherein the second preset period is larger than the first preset period if the additional current calculated by two adjacent first preset periods becomes larger, otherwise, the second preset period is equal to the first preset period.
Aspects and any one of the possible implementations as described above, further providing an implementation, the method further including:
monitoring an actual charging current obtained by the battery;
if the current difference between the actual charging current and the charging current required by the battery is larger than a preset current threshold, the charging current required by the battery is sent to the charging pile, and the actual charging current is re-monitored;
If the current difference between the actual charging current and the charging current required by the battery is monitored to be smaller than or equal to the preset current threshold, the request current is determined again, and the request current which is determined again is sent to the charging pile, wherein the actual charging current is the current actually obtained by the battery after the charging pile charges the vehicle, the charging current required by the battery is the current actually required by the battery in the charging process, and the request current is the current required by the vehicle to the charging pile.
Aspects and any one of the possible implementations as described above, further providing an implementation, the method further including:
After the re-determined request current is sent to the charging pile, the actual charging current is re-monitored;
And if the current difference between the actual charging current and the charging current required by the battery which are re-monitored is larger than a preset current threshold value and the times larger than the preset current threshold value reach the maximum preset times, stopping re-monitoring, and sending the charging current required by the battery to the charging pile.
According to a second aspect of the present disclosure, a battery charging apparatus of a vehicle is provided. The device comprises:
The judging module is used for judging whether the vehicle needs additional current or not in the process of starting and charging the battery and/or in the process of charging the battery, and the additional current is used for meeting the heat exchange requirement of the vehicle;
The calculation module is used for calculating the extra current according to the heat exchange requirement if the extra current is needed;
a determining module for determining a charging current required by the battery;
the acquisition module is used for acquiring a request current according to the additional current and the charging current;
and the sending module is used for sending the request current to a charging pile so that the charging pile provides the request current for the vehicle.
According to a third aspect of the present disclosure, an electronic device is provided. The electronic device includes: a memory and a processor, the memory having stored thereon a computer program, the processor implementing the method as described above when executing the program.
According to a fourth aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements a method according to the first aspect of the present disclosure.
According to a fifth aspect of the present disclosure, there is provided a vehicle comprising a battery charging device of the vehicle as described in the second aspect and/or an electronic apparatus as described in the third aspect.
In the disclosure, by judging whether the vehicle needs additional current in the battery starting charging process and/or the charging process, the additional current required for meeting the heat exchange requirement can be calculated according to the heat exchange requirement when the vehicle needs to be determined, then the charging current required by the battery is determined, further, according to the additional current and the charging current, the request current can be calculated, and then the request current is sent to the charging pile, so that the charging pile provides the vehicle with the current which can meet the charging requirement and the heat exchange requirement, and even if one part of the request current provided by the charging pile is used for vehicle heat exchange, the other part of the request current enters the battery and can meet the charging requirement, and the charging speed can be prevented from being delayed as far as possible.
It should be understood that what is described in this summary is not intended to limit the critical or essential features of the embodiments of the disclosure nor to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. For a better understanding of the present disclosure, and without limiting the disclosure thereto, the same or similar reference numerals denote the same or similar elements, wherein:
FIG. 1 illustrates a flow chart of a method of charging a battery of a vehicle according to an embodiment of the present disclosure;
Fig. 2 shows a block diagram of a battery charging apparatus of a vehicle according to an embodiment of the present disclosure;
fig. 3 illustrates a block diagram of an exemplary electronic device capable of implementing embodiments of the present disclosure.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to be within the scope of this disclosure.
In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Fig. 1 shows a flowchart of a battery charging method 100 of a vehicle according to an embodiment of the present disclosure. The method 100 may include:
Step 110, judging whether the vehicle needs additional current or not in the process of starting and/or charging the battery, wherein the additional current is used for meeting the heat exchange requirement of the vehicle;
The battery starts the charging process to monitor the charging gun to insert into the charging pile within the preset time length, and the preset time length is determined according to the historical time length from the charging gun to the first time of the vehicle sending the current to the charging pile, and can be 1 second or 500 milliseconds and the like.
The heat exchange requirement may be a requirement that the liquid cooling system of the battery needs to heat or cool the battery, and/or a requirement that the air conditioner be turned on.
Step 120, if necessary, calculating the additional current according to the heat exchange requirement;
step 130, determining a required charging current of the battery;
According to the current ambient temperature and the current State of Charge (SOC), the charging current required by the battery can be determined by searching a battery charging ammeter, wherein the State of Charge can be calculated according to the current voltage of the battery, and the battery charging ammeter records the corresponding charging currents under different ambient temperatures and different SOCs.
Step 140, obtaining a request current according to the additional current and the charging current;
And step 150, sending the request current to a charging pile so that the charging pile provides the request current for the vehicle.
Through judging whether the vehicle needs extra current in the battery starting charging process and/or charging process, can be when confirming needs, according to the heat transfer demand, calculate the extra current that satisfies this heat transfer demand, then confirm the required charge current of battery self, and then, according to extra current with charge current, can calculate request current, and then send request current to the electric pile provides the electric current size that can satisfy the charge demand and can satisfy the heat transfer demand for the vehicle, even if like this in the request current that the electric pile provided a part is used for the vehicle heat transfer, another part gets into the electric current in the battery and also can satisfy the charge demand, just so can avoid delaying charge speed as far as possible.
In some embodiments, the heat exchange requirement comprises: heat exchange of the liquid cooling system;
determining whether the vehicle requires additional current during the battery start-up charging process and/or charging process includes:
acquiring the current temperature of the battery in the process of starting and/or charging the battery;
Judging whether the current temperature of the battery is matched with the proper working temperature of the battery;
If not, additional current is required, otherwise no additional current is required.
By judging whether the current temperature is matched with the proper working temperature or not, when the current temperature is not matched with the proper working temperature, the need of additional current for heat exchange can be determined, otherwise, the need of additional current is avoided, specifically, if the current temperature of the battery is greater than the proper working temperature of the battery, the fact that the temperature of the battery is high is indicated, and cooling is needed, so that a liquid cooling system is needed for cooling; if the current temperature of the battery is lower than the proper working temperature of the battery, the battery is low in temperature and needs to be heated, so that a liquid cooling system is needed to be used for heating.
In some embodiments, said calculating said additional current according to said heat exchange demand comprises:
acquiring attribute information of the battery in the process of starting and charging, wherein the attribute information comprises at least one of the current temperature, the environment temperature, the proper working temperature, the current voltage of the battery, the rated power of a liquid cooling system of the battery, the temperature of cooling liquid of the liquid cooling system and the contact area of the liquid cooling system and the battery;
Calculating the current heat exchange power of the liquid cooling system according to the attribute information of the battery;
Or alternatively
In the charging process, acquiring the specific heat capacity of the cooling liquid of the liquid cooling system;
obtaining the current heat exchange power according to the specific heat capacity of the cooling liquid, the water inlet and outlet temperature of the liquid cooling system and the cooling liquid flow rate of the liquid cooling system;
and calculating the heat exchange current required by the liquid cooling system according to the current heat exchange power and the current voltage of the battery. And dividing the current heat exchange power by the current voltage to obtain the heat exchange current.
In the process of starting and charging, the current heat exchange power of the liquid cooling system can be automatically and accurately calculated according to the attribute information of the battery by acquiring the attribute information of the battery; or in the charging process, the specific heat capacity of the cooling liquid is obtained, then the specific heat capacity of the cooling liquid, the water inlet and outlet temperature of the liquid cooling system and the cooling liquid flow rate of the liquid cooling system are multiplied, so that the current heat exchange power can be calculated, and further, as the current voltage in the battery charging process is continuously changed and the rated voltage of the liquid cooling system is unchanged, the calculation accuracy of the heat exchange current can be improved compared with the calculation of the heat exchange current according to the working power of the air conditioner and the rated voltage of the air conditioner according to the current heat exchange power and the current voltage of the battery.
In some embodiments, the determining whether the vehicle requires additional current during the battery-initiated charging process and/or charging process includes:
judging whether an air conditioner of the vehicle is started in the charging process;
If so, confirming that additional current is needed, wherein the heat exchange requirement comprises air conditioner heat exchange.
In the charging process, whether the air conditioner is started or not can be judged in real time, if so, the air conditioner is required to exchange heat, and therefore, the vehicle is confirmed to need additional current for heat exchange.
In some embodiments, said calculating said additional current according to said heat exchange demand comprises:
searching an air conditioner power meter according to the working mode of the air conditioner, the set temperature of a user and the current environment temperature to obtain the corresponding working power of the air conditioner;
and calculating the heat exchange current required by the heat exchange of the air conditioner according to the working power of the air conditioner and the current voltage of the battery. And dividing the working power of the air conditioner by the current voltage to obtain the heat exchange current.
Because the air conditioner power meter records the air conditioner working powers under different working modes, different set temperatures and different environment temperatures or records the air conditioner working powers under different working modes and different temperature differences (the difference between the set temperature and the environment temperature), the accurate air conditioner working power can be obtained by searching the air conditioner power meter according to the working modes of the air conditioner, the set temperatures of the user and the current environment temperature, and further, the current voltage is continuously changed in the battery charging process, the rated voltage of the air conditioner is unchanged, so that the calculation accuracy of the heat exchange current can be improved compared with the calculation of the heat exchange current according to the air conditioner working power and the rated voltage of the air conditioner according to the air conditioner working power and the current voltage of the battery.
In some embodiments, obtaining a request current from the additional current and the charging current comprises:
And carrying out summation operation on at least one additional current corresponding to the heat exchange requirement and the charging current to obtain the request current.
No matter how much heat exchange is required, how much extra current is summed with the charging current, and the request current can be accurately obtained.
In some embodiments, calculating the additional current from the heat exchange demand includes:
searching a preset air conditioner power meter according to a first preset period by utilizing the heat exchange requirement to calculate the heat exchange current;
Specifically, according to the working mode of the air conditioner represented by the heat exchange requirement and the set temperature of the user, in combination with the current environment temperature, an air conditioner power meter can be searched according to a first preset period to obtain the corresponding air conditioner working power;
and calculating the heat exchange current required by the heat exchange of the air conditioner according to the working power of the air conditioner and the current voltage of the battery.
Determining the heat exchange current as the additional current; the method further comprises the steps of:
And updating the request current according to a second preset period while the request current is sent to the charging pile according to the first preset period, wherein if the additional current calculated by two adjacent first preset periods becomes larger, the second preset period is larger than the first preset period, otherwise, the second preset period is equal to the first preset period.
When searching a preset air conditioner power meter according to a first preset period to calculate additional current and send a request current to a charging pile, determining a second preset period according to whether the additional current is larger or smaller, and then updating the request current according to the second preset period, specifically, if the additional current calculated by two adjacent first preset periods indicates that the current is larger, the control of the current can not be immediately updated but needs to be slightly equal due to the instability of the control of an air conditioner or a liquid cooling system, so that the second preset period for updating the request current is larger than the first preset period, and the influence of frequent update of the current on charging or heat exchange is avoided; if the extra current calculated by two adjacent first preset periods indicates that the current becomes smaller, the second preset period is equal to the first preset period, namely the request current is updated immediately, so that adverse effects on the vehicle caused by current overload are avoided in time.
In some embodiments, the method further comprises:
monitoring an actual charging current obtained by the battery;
if the current difference between the actual charging current and the charging current required by the battery is larger than a preset current threshold, the charging current required by the battery is sent to the charging pile, and the actual charging current is re-monitored;
If the current difference between the actual charging current and the charging current required by the battery is monitored to be smaller than or equal to the preset current threshold, the request current is determined again, and the request current which is determined again is sent to the charging pile, wherein the actual charging current is the current actually obtained by the battery after the charging pile charges the vehicle, the charging current required by the battery is the current actually required by the battery in the charging process, and the request current is the current required by the vehicle to the charging pile.
The actual charging current is the current actually obtained by the battery during the vehicle charging process, and may be less than or better equal to the charging current required by the battery, for example: the required charging current of the battery is 3A, and the actual charging current may be 3.1A.
The request current is equal to or slightly greater than the sum of the additional current and the charging current required by the battery. For example: the additional current is 2A and the charging current required by the battery is 3A, the request current may be 5A or 5.2A.
By monitoring the actual charging current obtained by the battery, whether the current difference between the actual charging current and the charging current required by the battery is larger than a preset current threshold value can be judged, if so, the charging current obtained by the battery is excessively large, in order to avoid current overload, the charging current required by the battery is sent to the charging pile, the actual charging current is re-monitored, and then when the current difference between the actual charging current and the charging current required by the battery is monitored to be smaller than or equal to the preset current threshold value, the charging current obtained by the battery is not excessively large, so that the calculation of the request current can be tried again, and the re-determined request current is sent to the charging pile, thereby not only meeting the charging requirement and the heat exchange requirement when the battery is charged, but also avoiding the influence of the charging current overload on the battery.
In some embodiments, the method further comprises:
After the re-determined request current is sent to the charging pile, the actual charging current is re-monitored;
And if the current difference between the actual charging current and the charging current required by the battery which are re-monitored is larger than a preset current threshold value and the times larger than the preset current threshold value reach the maximum preset times, stopping re-monitoring, and sending the charging current required by the battery to the charging pile.
After sending the re-determined request current to the charging pile, the actual charging current may be re-monitored,
If the current difference between the actual charging current and the charging current required by the battery is greater than the preset current threshold and the number of times greater than the preset current threshold reaches the maximum preset number of times, the request current is tried to be sent for a plurality of times, but the current actually obtained by the battery after the request current is tried to be sent is larger, so that the actual charging current can be stopped from being re-monitored, the re-try is not performed, only the charging current required by the battery is sent to the charging pile, and the charging pile only provides the charging current required by the battery for the vehicle, thereby avoiding overload charging of the battery.
The maximum preset number of times may be 5 times or 6 times, etc.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present disclosure is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present disclosure. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all alternative embodiments, and that the acts and modules referred to are not necessarily required by the present disclosure.
The foregoing is a description of embodiments of the method, and the following further describes embodiments of the present disclosure through examples of apparatus.
Fig. 2 shows a block diagram of a battery charging apparatus 200 of a vehicle according to an embodiment of the present disclosure. As shown in fig. 2, the apparatus 200 includes:
a determining module 210, configured to determine whether an additional current is required by the vehicle during the battery start-up charging process and/or the charging process, where the additional current is used to meet a heat exchange requirement of the vehicle;
a calculation module 220, configured to calculate the additional current according to the heat exchange requirement, if necessary;
a determining module 230 for determining a required charging current for the battery;
An obtaining module 240, configured to obtain a request current according to the additional current and the charging current;
and the sending module 250 is used for sending the request current to a charging pile so that the charging pile provides the request current for the vehicle.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the described modules may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
According to an embodiment of the present disclosure, the present disclosure further provides an electronic device, including:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform any one of the method embodiments described above.
According to an embodiment of the present disclosure, there is also provided a vehicle including: the battery charging device of a vehicle as described in the above embodiment or the electronic apparatus as described in the above embodiment.
According to an embodiment of the present disclosure, there is also provided a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform any one of the method embodiments described above.
Fig. 3 shows a schematic block diagram of an electronic device 300 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.
The device 300 comprises a computing unit 301 that may perform various suitable actions and processes in accordance with a computer program stored in a Read Only Memory (ROM) 302 or loaded from a storage unit 308 into a Random Access Memory (RAM) 303. In the RAM 303, various programs and data required for the operation of the device 300 may also be stored. The computing unit 301, the ROM 302, and the RAM 303 are connected to each other by a bus 304. An input/output (I/O) interface 305 is also connected to bus 304.
Various components in device 300 are connected to I/O interface 305, including: an input unit 306 such as a keyboard, a mouse, etc.; an output unit 307 such as various types of displays, speakers, and the like; a storage unit 308 such as a magnetic disk, an optical disk, or the like; and a communication unit 309 such as a network card, modem, wireless communication transceiver, etc. The communication unit 309 allows the device 300 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The computing unit 301 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 301 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 301 performs the various methods and processes described above, such as method 100. For example, in some embodiments, the method 100 may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 308. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 300 via the ROM 302 and/or the communication unit 309. One or more of the steps of the method 100 described above may be performed when the computer program is loaded into RAM 303 and executed by the computing unit 301. Alternatively, in other embodiments, the computing unit 301 may be configured to perform the method 100 by any other suitable means (e.g. by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on 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.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server incorporating a blockchain.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel or sequentially or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (13)
1. A battery charging method of a vehicle, comprising:
judging whether the vehicle needs additional current or not in the process of starting and charging the battery and/or in the process of charging the battery, wherein the additional current is used for meeting the heat exchange requirement of the vehicle;
If so, calculating the additional current according to the heat exchange requirement;
determining a required charging current for the battery;
Obtaining a request current according to the additional current and the charging current;
and sending the request current to a charging pile so that the charging pile provides the request current for the vehicle.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The heat exchange requirements include: heat exchange of the liquid cooling system;
determining whether the vehicle requires additional current during the battery start-up charging process and/or charging process includes:
acquiring the current temperature of the battery in the process of starting and/or charging the battery;
Judging whether the current temperature of the battery is matched with the proper working temperature of the battery;
If not, additional current is required, otherwise no additional current is required.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
Said calculating said additional current according to said heat exchange demand, comprising:
acquiring attribute information of the battery in the process of starting and charging, wherein the attribute information comprises at least one of the current temperature, the environment temperature, the proper working temperature, the current voltage of the battery, the rated power of a liquid cooling system of the battery, the temperature of cooling liquid of the liquid cooling system and the contact area of the liquid cooling system and the battery;
Calculating the current heat exchange power of the liquid cooling system according to the attribute information of the battery;
Or alternatively
In the charging process, acquiring the specific heat capacity of the cooling liquid of the liquid cooling system;
obtaining the current heat exchange power according to the specific heat capacity of the cooling liquid, the water inlet and outlet temperature of the liquid cooling system and the cooling liquid flow rate of the liquid cooling system;
And calculating the heat exchange current required by the liquid cooling system according to the current heat exchange power and the current voltage of the battery.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The determining whether the vehicle requires additional current during the battery-initiated charging process and/or charging process includes:
judging whether an air conditioner of the vehicle is started in the charging process;
If so, confirming that additional current is needed, wherein the heat exchange requirement comprises air conditioner heat exchange.
5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
Said calculating said additional current according to said heat exchange demand, comprising:
searching an air conditioner power meter according to the working mode of the air conditioner, the set temperature of a user and the current environment temperature to obtain the corresponding working power of the air conditioner;
and calculating the heat exchange current required by the heat exchange of the air conditioner according to the working power of the air conditioner and the current voltage of the battery.
6. The method of claim 1, wherein the step of determining the position of the substrate comprises,
Obtaining a request current from the additional current and the charging current, including:
And carrying out summation operation on at least one additional current corresponding to the heat exchange requirement and the charging current to obtain the request current.
7. The method of claim 1, wherein the step of determining the position of the substrate comprises,
Calculating the additional current according to the heat exchange requirement, including:
searching a preset air conditioner power meter according to a first preset period by utilizing the heat exchange requirement to calculate the heat exchange current;
Determining the heat exchange current as the additional current;
The method further comprises the steps of:
And updating the request current according to a second preset period while the request current is sent to the charging pile according to the first preset period, wherein the second preset period is larger than the first preset period if the additional current calculated by two adjacent first preset periods becomes larger, otherwise, the second preset period is equal to the first preset period.
8. The method according to any one of claims 1 to 7, further comprising:
monitoring an actual charging current obtained by the battery;
if the current difference between the actual charging current and the charging current required by the battery is larger than a preset current threshold, the charging current required by the battery is sent to the charging pile, and the actual charging current is re-monitored;
If the current difference between the actual charging current and the charging current required by the battery is monitored to be smaller than or equal to the preset current threshold, the request current is determined again, and the request current which is determined again is sent to the charging pile, wherein the actual charging current is the current actually obtained by the battery after the charging pile charges the vehicle, the charging current required by the battery is the current actually required by the battery in the charging process, and the request current is the current required by the vehicle to the charging pile.
9. The method of claim 8, wherein the method further comprises:
After the re-determined request current is sent to the charging pile, the actual charging current is re-monitored;
And if the current difference between the actual charging current and the charging current required by the battery which are re-monitored is larger than a preset current threshold value and the times larger than the preset current threshold value reach the maximum preset times, stopping re-monitoring, and sending the charging current required by the battery to the charging pile.
10. A battery charging apparatus for a vehicle, comprising:
The judging module is used for judging whether the vehicle needs additional current or not in the process of starting and charging the battery and/or in the process of charging the battery, and the additional current is used for meeting the heat exchange requirement of the vehicle;
The calculation module is used for calculating the extra current according to the heat exchange requirement if the extra current is needed;
a determining module for determining a charging current required by the battery;
the acquisition module is used for acquiring a request current according to the additional current and the charging current;
and the sending module is used for sending the request current to a charging pile so that the charging pile provides the request current for the vehicle.
11. An electronic device, comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-9.
12. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of any one of claims 1-9.
13. A vehicle, characterized by comprising: the apparatus of claim 10 and/or the electronic device of claim 11.
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| CN202310107529.2A CN118418809A (en) | 2023-01-31 | 2023-01-31 | Method, apparatus, device and computer readable storage medium for charging battery of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310107529.2A CN118418809A (en) | 2023-01-31 | 2023-01-31 | Method, apparatus, device and computer readable storage medium for charging battery of vehicle |
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| CN202310107529.2A Pending CN118418809A (en) | 2023-01-31 | 2023-01-31 | Method, apparatus, device and computer readable storage medium for charging battery of vehicle |
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| CN (1) | CN118418809A (en) |
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