CN115923545A - Charging method, device and medium for electric vehicle and electric vehicle - Google Patents
Charging method, device and medium for electric vehicle and electric vehicle Download PDFInfo
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- CN115923545A CN115923545A CN202211723556.4A CN202211723556A CN115923545A CN 115923545 A CN115923545 A CN 115923545A CN 202211723556 A CN202211723556 A CN 202211723556A CN 115923545 A CN115923545 A CN 115923545A
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Abstract
The embodiment of the application discloses a charging method, a charging device, a charging medium and an electric vehicle, and relates to the technical field of charging. The method comprises the following steps: acquiring a charging start time and a charging end time of the electric vehicle; determining a charging time period of the electric vehicle according to the charging start time, the charging end time and air temperature information, wherein the air temperature information comprises an ambient air temperature between the charging start time and the charging end time; determining a charging request power according to the temperature of the battery in the charging time period; and indicating the charging request power to a charger. The method can charge the electric vehicle at a proper environment temperature, reduce the energy consumption required by the work of the cooling system and improve the charging efficiency.
Description
Technical Field
The present disclosure relates to charging technologies, and in particular, to a charging method, a charging device, a charging medium, and an electric vehicle.
Background
In the process of daily use of the electric vehicle by a user, the most frequently encountered vehicle using scene is to carry out communication slow charging on the electric vehicle. In a high-temperature scene in summer, because the temperature of the battery and the charger is higher after driving in a high-temperature environment, if the battery and the charger are charged by a larger current immediately, potential safety hazards can be caused.
In a high-temperature scene in summer, after detecting that the charger starts to charge the electric vehicle, the electric vehicle in the related art requests the cooling system to work so as to reduce the temperature of the battery and the charger.
However, in the related art, the operation of the cooling system may cause energy consumption, resulting in a low charging efficiency of the electric vehicle.
Disclosure of Invention
The embodiment of the application provides a charging method, a charging device, a charging medium and an electric vehicle of the electric vehicle, the method can preset a charging time period of the electric vehicle, the environment temperature in the charging time period is adaptive to the electric vehicle for charging, the charging efficiency can be effectively improved, and the method comprises the following steps:
according to another aspect of the present application, there is provided a charging method of an electric vehicle, the method including:
acquiring a charging start time and a charging end time of the electric vehicle;
determining a charging time period of the electric vehicle according to the charging start time, the charging end time and air temperature information, wherein the air temperature information comprises an ambient air temperature between the charging start time and the charging end time;
determining a charging request power according to the temperature of the battery in the charging time period;
and indicating the charging request power to a charger.
According to another aspect of the present application, there is provided a charging apparatus for an electric vehicle, the apparatus including:
the acquisition module is used for acquiring the charging starting time and the charging ending time of the electric vehicle;
the calculation module is used for determining a charging time period of the electric vehicle according to the charging starting time, the charging ending time and air temperature information, wherein the air temperature information comprises the ambient air temperature between the charging starting time and the charging ending time;
the calculation module is further used for determining charging request power according to the battery temperature in the charging time period;
and the indicating module is used for indicating the charging request power to a charger.
In an optional design, the calculation module is further configured to predict a predicted charging duration according to the allowable charging power and the charging efficiency of the charger; and determining the charging time period between the charging starting time and the charging ending time according to the air temperature information and the expected charging time period, wherein the total time period of the charging time period is not less than the expected charging time period.
In an optional design, the calculation module is further configured to determine a charging temperature range according to the air temperature information, where the charging temperature range is used to indicate an ambient temperature suitable for charging the electric vehicle; and according to the charging temperature interval, determining the charging time period between the charging starting time and the charging ending time by taking the total time length of the charging time period not less than the expected charging time length as a target.
In an optional design, the calculation module is further configured to determine the charging request power from a relationship table according to the battery temperature, where the relationship table is used to record a corresponding relationship between the battery temperature and the charging request power; and correcting the charging request power according to the battery temperature rise data and the charger temperature rise data.
In an optional design, the calculating module is further configured to reduce the charging request power when the battery temperature rise data is greater than a first temperature rise threshold or the charging temperature rise data is greater than a second temperature rise threshold; or, the charging request power is increased when the battery temperature rise data is smaller than the first temperature rise threshold and the charging temperature rise data is smaller than the second temperature rise threshold.
In an optional design, the obtaining module is further configured to display an intelligent charging option when the battery temperature is greater than a first temperature threshold and the charger temperature is greater than a second temperature threshold; in response to a determination operation on the smart charging option, displaying a time option; and acquiring the charging starting time and the charging ending time in response to the time input operation on the time option.
In an optional design, the calculation module is further configured to count an actual charging time; and calculating the electricity saving quantity according to the difference value between the actual charging time length and the expected charging time length and the charging request power.
According to another aspect of the present application, there is provided an electric vehicle including: the charging system includes a processor and a memory having at least one instruction, at least one program, set of codes, or set of instructions stored therein, the at least one instruction, the at least one program, set of codes, or set of instructions being loaded and executed by the processor to implement the charging method of the electric vehicle as above aspect.
According to another aspect of the present application, there is provided a computer storage medium having at least one program code stored therein, the program code being loaded and executed by a processor to implement the charging method of an electric vehicle of the above aspect.
According to another aspect of the application, a computer program product or a computer program is provided, comprising computer instructions, which are stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to execute the charging method for an electric vehicle according to the above aspect.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
and determining a charging time period of the electric vehicle between the charging start time and the charging end time of the electric vehicle according to the ambient air temperature, and charging the electric vehicle in the charging time period. The scheme can charge the electric vehicle at a proper environment temperature, reduces energy consumption required by the work of the cooling system and improves charging efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 illustrates a flow chart of a charging method for an electric vehicle according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart illustrating a charging method for an electric vehicle according to an embodiment of the present disclosure;
fig. 3 shows a schematic structural diagram of a charging device for an electric vehicle according to an embodiment of the present application;
fig. 4 is a schematic configuration diagram illustrating a management system of an electric vehicle according to an exemplary embodiment.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
First, terms referred to in the embodiments of the present application are described:
BMS (Battery Management System): the intelligent management system is used for intelligently managing and maintaining each battery unit, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery and monitoring the state of the battery.
It should be noted that, before collecting the relevant data of the user and in the process of collecting the relevant data of the user, the present application may display a prompt interface, a popup window, or output voice prompt information, where the prompt interface, the popup window, or the voice prompt information is used to prompt the user to currently collect the relevant data, so that the present application only starts to execute the relevant step of obtaining the relevant data of the user after obtaining the confirmation operation sent by the user to the prompt interface or the popup window, otherwise (that is, when the confirmation operation sent by the user to the prompt interface or the popup window is not obtained), the relevant step of obtaining the relevant data of the user is ended, that is, the relevant data of the user is not obtained. In other words, all user data collected in the present application is collected under the approval and authorization of the user, and the collection, use and processing of the relevant user data need to comply with relevant laws and regulations and standards of relevant countries and regions.
In a high-temperature environment, most users immediately insert a gun to charge an electric vehicle after using the vehicle for convenience. And under high temperature environment, battery after driving and machine temperature are higher, if charge with great electric current this moment immediately, battery and quick rising of machine temperature that charges, high temperature will lead to machine that charges and the charge efficiency of battery can reduce gradually, can be compelled simultaneously to request cooling system work cooling down, bring the power consumption increase in the charging process thereupon, directly influence the user and use the car cost to rise, electric vehicle lasts to charge under the high temperature condition has very big safety risk moreover.
Therefore, in order to reduce energy consumption and ensure the safety of the charging process, the charging starting time and the charging ending time can be preset, and the electric vehicle can search the charging time period with the appropriate ambient temperature between the charging starting time and the charging ending time to charge, so that the charging efficiency can be improved, and the charging safety can be ensured.
Fig. 1 shows a schematic flowchart of a charging method for an electric vehicle according to an embodiment of the present application.
The method comprises the following steps:
step 102: a charging start time and a charging end time of the electric vehicle are acquired.
The charge start time is used to indicate a time at which the electric vehicle starts charging. The charge termination time is used to indicate the time when the electric vehicle ends charging.
Optionally, under the condition that the temperature of the battery is greater than a first temperature threshold value and the temperature of the charger is greater than a second temperature threshold value, displaying an intelligent charging option; in response to a determination operation on the smart charging option, displaying a time option; in response to a time input operation on the time option, a charging start time and a charging end time are acquired. The first temperature threshold and the second temperature threshold may be the same or different. The first and second temperature thresholds may be preset by a technician. The time option is used for inputting a charging start time and a charging end time.
In some embodiments, the method includes sending an intelligent charging function request to the mobile terminal when the battery temperature is greater than a first temperature threshold and the charger temperature is greater than a second temperature threshold; and acquiring the charging starting time and the charging ending time returned by the mobile terminal.
Illustratively, in the case where the battery temperature is greater than the first temperature threshold and the charger temperature is greater than the second temperature threshold, a smart charging option is displayed, the smart charging option including "ask whether to start the smart charging function? And a determination button and a cancel button, in response to a determination operation on the determination button, displaying a time option in which the user inputs the charging start time and the charging end time.
Step 104: and determining a charging time period of the electric vehicle according to the charging starting time, the charging ending time and the air temperature information, wherein the air temperature information comprises the ambient air temperature between the charging starting time and the charging ending time.
Optionally, predicting the expected charging duration according to the allowable charging power and the charging efficiency of the charger; and determining a charging time period between the charging starting time and the charging ending time according to the temperature information and the expected charging time period, wherein the total time period of the charging time period is not less than the expected charging time period.
In some embodiments, the expected charging time is an interval because of an error, and the expected charging time is difficult to be accurate to a specific value. For example, the charge estimated time length is [4,5], and the unit of the charge estimated time length is an hour.
Step 106: during the charging period, the charging request power is determined according to the battery temperature.
Optionally, determining the charging request power from a relation table according to the battery temperature, wherein the relation table is used for recording the corresponding relation between the battery temperature and the charging request power; and correcting the charging request power according to the battery temperature rise data and the charger temperature rise data.
The battery temperature rise data is used to represent the rise value of the battery temperature. And the temperature rise data of the charger is used for representing the temperature rise value of the charger.
In some embodiments, the charging request power is reduced in the case where the battery temperature rise data is greater than the first temperature rise threshold or the charging temperature rise data is greater than the second temperature rise threshold; or under the condition that the temperature rise data of the battery is smaller than the first temperature rise threshold and the temperature rise data of the battery is smaller than the second temperature rise threshold, the charging request power is increased. The first temperature rise threshold and the second temperature rise threshold may be the same or different. The first and second temperature rise thresholds may be preset by a technician.
Step 108: and providing the charging request power to the charger.
Optionally, after the electric vehicle finishes charging, counting the actual charging time; and calculating the electricity saving quantity according to the difference value between the actual charging time length and the expected charging time length and the charging request power.
In summary, the embodiment of the present application determines the charging time period of the electric vehicle between the charging start time and the charging end time of the electric vehicle according to the ambient air temperature, and charges the electric vehicle in the charging time period. The scheme can charge the electric vehicle at a proper environment temperature, reduces energy consumption required by the work of the cooling system and improves charging efficiency.
In the following embodiment, the electric vehicle can predict the ambient temperature change, calculate and analyze the charging time period according to the charging setting requirement of the user and the temperature of the vehicle charger and the battery, and reasonably plan the charging time period and distribute the charging power according to the temperature of the charger and the battery. Under the condition of ensuring the charging requirement of a user, the temperature of a battery and a charger is effectively controlled, the charging efficiency is improved, the economical efficiency of the vehicle is improved for the user on the premise of ensuring the safety, and the user experiences the intellectualization and humanization of the vehicle; the method is particularly important and urgent, and has important significance for promoting the intelligent development of the electric vehicle.
Fig. 2 shows a schematic flowchart of a charging method for an electric vehicle according to an embodiment of the present application.
The method comprises the following steps:
step 201: and judging whether to start the intelligent charging function or not according to the battery temperature and the charger temperature.
Optionally, under the condition that the battery temperature is greater than the first temperature threshold and the charger temperature is greater than the second temperature threshold, determining to start the intelligent charging function, and executing step 202; and under the condition that the temperature of the battery is smaller than the first temperature threshold value and the temperature of the charger is smaller than the second temperature threshold value, the intelligent charging function is determined not to be started.
For example, after detecting the charger, the electric vehicle performs step 201, wherein the battery temperature is obtained by a battery temperature sensor, and the charger temperature is obtained by a charger temperature sensor.
Step 202: and displaying the intelligent charging option.
Illustratively, in the case where the battery temperature is greater than the first temperature threshold and the charger temperature is greater than the second temperature threshold, a smart charging option is displayed, the smart charging option including "ask whether to start the smart charging function? And a determination button and a cancel button, in response to a determination operation on the determination button, displaying a time option in which the user inputs the charging start time and the charging end time.
Step 203: the charging start time and the charging end time are acquired.
Optionally, in response to a determination on the smart charging option, displaying a time option; in response to a time input operation on the time option, a charging start time and a charging end time are acquired.
Optionally, a smart charging function switch, a charging start time and a charging end time are arranged in the vehicle-mounted control screen, when a user detects and judges that the battery temperature and the charger temperature are respectively higher than a certain value after inserting the charging gun, the user sends a smart charging function starting request message to the vehicle-mounted control screen to actively pop up a dialog box to remind the user whether to start the smart charging function, and when the user selects to start the smart charging function and sets the charging start time and the charging end time, the vehicle-mounted control screen sends user-related setting information to the BMS of the electric vehicle.
Step 204: and predicting the expected charging time.
Optionally, after receiving the user-related setting information (i.e., the charging start time and the charging end time), the BMS calculates the expected charging time according to the user setting information, the allowable charging power at the current battery temperature, and the charging efficiency of the charger.
In some embodiments, the electric vehicle predicts the expected charging period based on an average temperature between the charging start time and the charging end time.
It should be noted that, since the ambient temperature and the battery temperature are constantly changing during the charging process, the predicted charging time period predicted by the present embodiment is set as an interval to reduce the influence of the above error.
Step 205: a charging period of time for the electric vehicle is determined.
Exemplarily, a charging temperature interval is determined according to the air temperature information, and the charging temperature interval is used for representing the environment temperature suitable for charging the electric vehicle; and determining the charging time period between the charging starting time and the charging ending time according to the charging temperature interval by taking the total time length of the charging time period not less than the expected charging time length as a target.
Illustratively, the BMS plans an appropriate charging period based on information about the trend of ambient temperature changes within a user-set period provided by weather forecast software built in the electric vehicle.
Step 206: and calculating the charging request power.
Illustratively, the charger performs charging according to the charging request power sent by the BMS, the BMS records data of the charging power, the battery, the temperature rise of the charger, and the like in real time during the charging process, and automatically corrects and adjusts the unreasonable parameters marked in the relation table after completing multiple rounds of charging.
Step 207: and indicating the charging request power to a charger.
Step 208: and calculating to save the electric quantity.
Optionally, counting the actual charging time; and calculating the electricity saving quantity according to the difference value between the actual charging time length and the expected charging time length and the charging request power.
Illustratively, the actual charging period is T1, the expected charging period is [ T2, T3], the average value of the charging request power during the charging period is P, and the saved charge amount is P (((T2 + T3)/2) -T1).
Alternatively, the amount of power saved is calculated based on the amount of reduction in the operating time of the cooling system. For example, T4 for the actual operating time of the cooling system, T5 for the predicted operating time of the cooling system, P2 for the power of the cooling system, and P2 x (T5-T4) for the power saving.
Step 209: and calculating the reduction amount of the carbon emission according to the saved electric quantity.
Alternatively, the carbon emission reduction amount is transmitted to the mobile terminal, or the carbon emission amount is displayed on an on-vehicle control screen of the electric vehicle.
In summary, the embodiment of the present application determines the charging time period of the electric vehicle between the charging start time and the charging end time of the electric vehicle according to the ambient air temperature, and charges the electric vehicle in the charging time period. The scheme can charge the electric vehicle at a proper environment temperature, reduces energy consumption required by the work of the cooling system, and improves charging efficiency.
On the premise of guaranteeing the charging electric quantity and time target set by a user, the temperature rise balance of the battery and the charger is kept as much as possible, the energy consumption required by the work of a cooling system is reduced, and the charging safety is improved; after charging is completed, the electric quantity saved due to improvement of charging efficiency and reduction of working time of the cooling system is calculated and converted into a carbon emission reduction value to be displayed to a user. Under the condition of guaranteeing the charging requirement of a user, the temperature of the battery and the charger is effectively controlled, the charging efficiency is improved, the economical efficiency of the vehicle is improved for the user on the premise of guaranteeing the safety, and the user can experience the intellectualization and humanization of the vehicle; the method is very important and urgent, and has important significance for promoting the intelligent development of the electric vehicle.
The following are embodiments of the apparatus of the present application, and for details that are not described in detail in the embodiments of the apparatus, reference may be made to corresponding descriptions in the above method embodiments, and details are not described herein again.
Fig. 3 shows a schematic structural diagram of a charging device for an electric vehicle according to an exemplary embodiment of the present application. The apparatus may be implemented as all or part of a computer device by software, hardware or a combination of both, the apparatus 300 comprising:
an obtaining module 301, configured to obtain a charging start time and a charging end time of the electric vehicle;
a calculating module 302, configured to determine a charging time period of the electric vehicle according to the charging start time, the charging end time, and air temperature information, where the air temperature information includes an ambient air temperature between the charging start time and the charging end time;
the calculating module 302 is further configured to determine a charging request power according to a battery temperature during the charging period;
and the indicating module 303 is configured to indicate the charging request power to a charger.
In an optional design, the calculating module 302 is further configured to predict a predicted charging duration according to the allowable charging power and the charging efficiency of the charger; and determining the charging time period between the charging starting time and the charging ending time according to the temperature information and the expected charging time period, wherein the total time period of the charging time period is not less than the expected charging time period.
In an optional design, the calculating module 302 is further configured to determine a charging temperature range according to the air temperature information, where the charging temperature range is used to indicate an ambient temperature suitable for charging the electric vehicle; and according to the charging temperature interval, determining the charging time period between the charging starting time and the charging ending time by taking the total time length of the charging time period not less than the expected charging time length as a target.
In an optional design, the calculating module 302 is further configured to determine the charging request power from a relationship table according to the battery temperature, where the relationship table is used to record a corresponding relationship between the battery temperature and the charging request power; and correcting the charging request power according to the battery temperature rise data and the charger temperature rise data.
In an optional design, the calculating module 302 is further configured to reduce the charging request power when the battery temperature rise data is greater than a first temperature rise threshold or the charging temperature rise data is greater than a second temperature rise threshold; or, the charging request power is increased when the battery temperature rise data is smaller than the first temperature rise threshold and the charging temperature rise data is smaller than the second temperature rise threshold.
In an optional design, the obtaining module 301 is further configured to display an intelligent charging option when the battery temperature is greater than a first temperature threshold and the charger temperature is greater than a second temperature threshold; in response to a determination operation on the smart charging option, displaying a time option; and acquiring the charging starting time and the charging ending time in response to a time input operation on the time option.
In an optional design, the calculating module 302 is further configured to count an actual charging time; and calculating the electricity saving quantity according to the difference value between the actual charging time length and the expected charging time length and the charging request power.
In summary, the embodiment of the present application determines the charging time period of the electric vehicle between the charging start time and the charging end time of the electric vehicle according to the ambient air temperature, and charges the electric vehicle within the charging time period. The scheme can charge the electric vehicle at a proper environment temperature, reduces energy consumption required by the work of the cooling system, and improves charging efficiency.
Fig. 4 is a schematic configuration diagram illustrating a management system of an electric vehicle according to an exemplary embodiment. The server 400 includes a Central Processing Unit (CPU) 401, a system Memory 404 including a Random Access Memory (RAM) 402 and a Read-Only Memory (ROM) 403, and a system bus 405 connecting the system Memory 404 and the CPU 401. The computer device 400 also includes a basic Input/Output system (I/O system) 406, which facilitates transfer of information between various devices within the computer device, and a mass storage device 407 for storing an operating system 413, application programs 414, and other program modules 415.
The basic input/output system 406 includes a display 408 for displaying information and an input device 409 such as a mouse, keyboard, etc. for user input of information. Wherein a display 408 and an input device 409 are connected to the central processing unit 401 through an input output controller 410 connected to the system bus 405. The basic input/output system 406 may also include an input/output controller 410 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input/output controller 410 may also provide output to a display screen, a printer, or other type of output device.
The mass storage device 407 is connected to the central processing unit 401 through a mass storage controller (not shown) connected to the system bus 405. The mass storage device 407 and its associated computer device-readable media provide non-volatile storage for the computer device 400. That is, the mass storage device 407 may include a computer device readable medium (not shown) such as a hard disk or Compact Disc-Only Memory (CD-ROM) drive.
Without loss of generality, computer device readable media may comprise computer device storage media and communication media. Computer device storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer device readable instructions, data structures, program modules or other data. Computer device storage media includes RAM, ROM, erasable Programmable Read-Only Memory (EPROM), electrically Erasable Programmable Read-Only Memory (EEPROM), CD-ROM, digital Video Disk (DVD), or other optical, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer device storage media is not limited to the foregoing. The system memory 404 and mass storage device 407 described above may be collectively referred to as memory.
According to various embodiments of the present disclosure, the computer device 400 may also operate as a remote computer device connected to a network through a network, such as the Internet. That is, the computer device 400 may be connected to the network 411 through the network interface unit 412 connected to the system bus 405, or may be connected to other types of networks or remote computer device systems (not shown) using the network interface unit 412.
The memory further includes one or more programs, the one or more programs are stored in the memory, and the central processing unit 401 implements all or part of the steps of the above-described charging method for an electric vehicle by executing the one or more programs.
In an exemplary embodiment, there is also provided an electric vehicle having at least one instruction, at least one program, a set of codes, or a set of instructions stored therein, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded and executed by a processor to implement the charging method of the electric vehicle provided by the various method embodiments described above.
The present application further provides a computer-readable storage medium having at least one instruction, at least one program, a set of codes, or a set of instructions stored therein, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded and executed by a processor to implement the charging method for an electric vehicle provided by the above-mentioned method embodiments.
The present application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to enable the computer device to execute the charging method of the electric vehicle provided by the above embodiment.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The present application is intended to cover various modifications, alternatives, and equivalents, which may be included within the spirit and scope of the present application.
Claims (10)
1. A method of charging an electric vehicle, the method comprising:
acquiring a charging start time and a charging end time of the electric vehicle;
determining a charging time period of the electric vehicle according to the charging start time, the charging end time and air temperature information, wherein the air temperature information comprises an ambient air temperature between the charging start time and the charging end time;
determining a charging request power according to the temperature of the battery in the charging time period;
and indicating the charging request power to a charger.
2. The method of claim 1, wherein determining a charging period of time for the electric vehicle based on the charging start time, the charging end time, and the air temperature information comprises:
predicting the expected charging duration according to the allowable charging power and the charging efficiency of a charger;
and determining the charging time period between the charging starting time and the charging ending time according to the temperature information and the expected charging time period, wherein the total time period of the charging time period is not less than the expected charging time period.
3. The method according to claim 2, wherein said determining the charging period between the charging start time and the charging end time based on the air temperature information and the expected charging duration includes:
determining a charging temperature interval according to the air temperature information, wherein the charging temperature interval is used for representing the environment temperature suitable for charging the electric vehicle;
and according to the charging temperature interval, determining the charging time period between the charging starting time and the charging ending time by taking the total time length of the charging time period not less than the expected charging time length as a target.
4. The method according to any one of claims 1 to 3, wherein determining the charging request power according to the battery temperature comprises:
determining the charging request power from a relation table according to the battery temperature, wherein the relation table is used for recording the corresponding relation between the battery temperature and the charging request power;
and correcting the charging request power according to the battery temperature rise data and the charger temperature rise data.
5. The method of claim 4, wherein the modifying the charging request power according to the battery temperature rise data and the charger temperature rise data comprises:
reducing the charging request power when the battery temperature rise data is greater than a first temperature rise threshold or the charging temperature rise data is greater than a second temperature rise threshold;
or, the charging request power is increased when the battery temperature rise data is smaller than the first temperature rise threshold and the charging temperature rise data is smaller than the second temperature rise threshold.
6. The method according to any one of claims 1 to 3, wherein the obtaining of the charge start time and the charge end time of the electric vehicle includes:
displaying an intelligent charging option under the condition that the temperature of the battery is greater than a first temperature threshold value and the temperature of a charger is greater than a second temperature threshold value;
in response to a determination operation on the smart charging option, displaying a time option;
and acquiring the charging starting time and the charging ending time in response to a time input operation on the time option.
7. The method according to any one of claims 1 to 3, further comprising:
counting the actual charging time;
and calculating the electricity saving quantity according to the difference value between the actual charging time length and the expected charging time length and the charging request power.
8. A charging device for an electric vehicle, characterized in that the device comprises:
an acquisition module for acquiring a charging start time and a charging end time of the electric vehicle;
the calculation module is used for determining a charging time period of the electric vehicle according to the charging starting time, the charging ending time and air temperature information, wherein the air temperature information comprises the ambient air temperature between the charging starting time and the charging ending time;
the calculation module is further used for determining charging request power according to the battery temperature in the charging time period;
and the indicating module is used for indicating the charging request power to a charger.
9. A computer-readable storage medium, characterized in that at least one program code is stored therein, which is loaded and executed by a processor to implement the method of charging an electric vehicle according to any one of claims 1 to 7.
10. An electric vehicle, characterized in that the electric vehicle comprises: a processor and a memory, the memory having stored therein at least one program that is loaded and executed by the processor to implement the method of charging an electric vehicle according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723556.4A CN115923545A (en) | 2022-12-30 | 2022-12-30 | Charging method, device and medium for electric vehicle and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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