CN111845378B - Charging control method, charging control device and electric vehicle - Google Patents
Charging control method, charging control device and electric vehicle Download PDFInfo
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Abstract
The invention provides a charging control method, a charging control device and an electric vehicle, wherein the method comprises the following steps: monitoring the residual battery capacity of the electric vehicle when the electric vehicle is in a parking power utilization state; under the condition that the residual electric quantity of the battery is less than or equal to a first threshold value, controlling the range extender to intermittently charge the battery; and the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time of each time is less than or equal to a third threshold. In the process, the time interval between two adjacent charging is set to be larger than or equal to a second threshold, and the charging time is smaller than or equal to a third threshold. Therefore, the charging time of each time can be guaranteed not to be too long, the NVH of the electric vehicle is limited within a proper range tolerable by a user, the user can have better riding experience, and the charging scheme of the electric vehicle is optimized.
Description
Technical Field
The present invention relates to the field of control technologies, and in particular, to a charge control method, a charge control device, and an electric vehicle.
Background
The use of electric vehicles is now widespread, and batteries are still needed to supply power to electric equipment, such as air conditioners and the like, in the electric vehicles in a parking state. The power supply scheme under the power utilization state of parking mainly has two kinds, one is to completely utilize the battery to supply power, and the excessive consumption of the battery power is easily caused under the condition, so the normal running of the electric vehicle is influenced; and secondly, the range extender is used for generating power, and the engine is started for a long time under the condition, so that a vibration feeling is caused for a long time, and the riding of a user in the electric vehicle is influenced.
Therefore, the conventional power supply scheme of the electric vehicle in the power utilization state during parking has the technical problem of influencing the normal running of the electric vehicle or influencing the riding of a user.
Disclosure of Invention
The embodiment of the invention provides a charging control method, a charging control device and an electric vehicle, and aims to solve the technical problem that the normal running of the electric vehicle is influenced or the riding of a user is influenced in the conventional power supply scheme of the electric vehicle in a parking power utilization state.
In order to achieve the purpose, the invention provides the following specific scheme:
in a first aspect, an embodiment of the present invention provides a charging control method applied to an electric vehicle provided with a range extender, where the method includes:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is in a parking power utilization state;
under the condition that the residual electric quantity of the battery is smaller than or equal to a first threshold value, controlling the range extender to intermittently charge the battery;
and the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time of each time is less than or equal to a third threshold.
Optionally, after the step of controlling the range extender to intermittently charge the battery when the remaining battery capacity is less than or equal to the first threshold, the method further includes:
when a preset charging stopping condition is reached, controlling the range extender to stop charging; wherein,
the preset stop charging condition is determined by any one of the following modes:
the total charging time of the battery by the range extender reaches a preset total time; or,
the charging times are equal to the preset total charging times; or,
the remaining oil amount of the electric vehicle is less than or equal to a preset minimum oil amount.
Optionally, each charging time is equal, and the time interval between each two adjacent charges increases with the increase of the charging times; or,
the time intervals between any two adjacent charges are equal, and the charging time of each time is reduced along with the increase of the charging times.
Optionally, the power for charging the battery by the range extender is increased with the increase of the charging times.
Optionally, the first threshold is greater than or equal to a minimum battery level required for the electric vehicle to travel.
Optionally, before the step of controlling the range extender to intermittently charge the battery, the method further includes:
receiving a single charging time length sent by a user terminal;
and taking the single charging time as the third threshold.
Optionally, the method further includes:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is switched from the parking power utilization state to a running state;
and under the condition that the residual battery capacity is less than or equal to a fourth threshold value, controlling the range extender to charge the battery until the residual battery capacity reaches a fifth threshold value.
In a second aspect, an embodiment of the present invention further provides a charge control device applied to an electric vehicle provided with a range extender, where the charge control device includes:
the monitoring module is used for monitoring the residual battery capacity of the electric vehicle when the electric vehicle is in a parking power utilization state;
the control module is used for controlling the range extender to intermittently charge the battery under the condition that the residual electric quantity of the battery is less than or equal to a first threshold value;
and the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time of each time is less than or equal to a third threshold.
Optionally, the control module is further configured to:
when a preset charging stopping condition is reached, controlling the range extender to stop charging; wherein,
the preset stop charging condition is determined by any one of the following modes:
the total charging time of the battery by the range extender reaches a preset total time; or,
the charging times are equal to the preset total charging times; or,
the remaining oil amount of the electric vehicle is less than or equal to a preset minimum oil amount.
Optionally, each charging time is equal, and the time interval between each two adjacent charges increases with the increase of the charging times; or,
the time intervals between any two adjacent charges are equal, and the charging time of each time is reduced along with the increase of the charging times.
Optionally, the power for charging the battery by the range extender is increased with the increase of the charging times.
Optionally, the first threshold is greater than or equal to a minimum battery level required for the electric vehicle to travel.
Optionally, the charging control device further includes:
the receiving module is used for receiving the single charging time length sent by the user terminal;
and the determining module is used for taking the single charging time as the third threshold.
Optionally, the monitoring module is further configured to:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is switched from the parking power utilization state to a running state; and (c) a second step of,
the control module is further configured to:
and under the condition that the residual battery capacity is less than or equal to a fourth threshold value, controlling the range extender to charge the battery until the residual battery capacity reaches a fifth threshold value.
In a third aspect, an embodiment of the present invention further provides an electric vehicle including the charge control device according to any one of the second aspect.
In the embodiment of the invention, for the electric vehicle provided with the range extender, when the electric vehicle is in a parking power utilization state and the residual electric quantity of the battery is less than or equal to the first threshold value, the range extender is controlled to intermittently charge the battery. In the process, the time interval between two adjacent charging times is set to be larger than or equal to a second threshold value, and the time of each charging time is smaller than or equal to a third threshold value. Therefore, the charging time of each time can be ensured not to be too long, and the NVH of the electric vehicle is limited within a proper range tolerable by a user, so that the user can have better riding experience. In addition, the battery is charged discontinuously, so that the power consumption in the parking power utilization state can be met, the power consumption of the electric vehicle in the driving state switched from the parking power utilization state can be met, and the charging scheme of the electric vehicle is optimized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a charging control method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of another charging control method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charging control apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another charging control apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of a charging control method according to an embodiment of the present invention, where the charging control method is applied to an electric vehicle provided with a range extender. The range extender is an energy supply system consisting of an engine and a generator in the electric vehicle, and the energy supply system can convert the heat energy of fuel oil into electric energy to charge a battery of the electric vehicle. As shown in fig. 1, the charging control method mainly includes the following steps:
and the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time is less than or equal to a third threshold each time.
The charging control method provided by this embodiment is applied to a charging control device, which may be a controller separately provided on an electric vehicle and used for controlling a battery charging mode, or may be a control unit integrated on an in-vehicle terminal. The charging control device is used for controlling the range extender to charge the battery when the electric vehicle is in a parking power utilization state. The parking power utilization state refers to that the power supply of the electric vehicle is turned on, the gear is in the P gear or the N gear, and the battery in the electric vehicle is supplying power to the power utilization equipment, and the power utilization equipment referred to herein may be power utilization equipment with larger power, such as an air conditioner, a player, and the like.
The charging control device monitors the remaining battery capacity of the electric vehicle in a parking power utilization state, and is preset with a first threshold value. The specific value of the first threshold is not limited, and may be, for example, 80%, 60%, 50%, etc. of the rated charge of the battery. Considering that the electric equipment can continuously consume the battery power when the electric vehicle is in a parking power utilization state, when the residual battery power is too low, the electric vehicle may not be started and driven normally. Therefore, the first threshold value may be set to be equal to or slightly greater than the amount of electricity required for normal starting and running of the electric vehicle. When the remaining battery capacity is less than or equal to the first threshold, the electric vehicle may not be normally started and driven, and when the remaining battery capacity is greater than the first threshold, the electric vehicle may be normally started and driven.
The charging control device needs to control the range extender to charge the battery once when monitoring that the remaining battery capacity is less than or equal to the first threshold. In addition, considering that the electric vehicle is currently in a parking power utilization state, no background sounds such as road Noise and wind Noise exist, the whole vehicle is in a quiet state, and if the working time of the range extender is long, the NVH (Noise, Vibration and Harshness) is large, so that a user feels a relatively obvious Vibration, and the riding discomfort of the user is caused.
For the above reasons, the charging control device may set in advance a second threshold value for a time interval between two adjacent charges and a third threshold value for each charging time, in combination with the tolerance of the user, the range extender power generation efficiency, and the like, and typically, the second threshold value is greater than or equal to the third threshold value. And when the range extender is controlled to intermittently charge the battery, the time interval between any two adjacent times of charging is greater than or equal to a second threshold value, and the charging time is less than or equal to a third threshold value every time. Therefore, the charging time of the range extender is limited within a certain time period, the interval time is longer, the influence of the vibration sense of the range extender on a user is relatively smaller, and the riding feeling of the user in the parking power utilization state is relatively better.
For example, the range extender may be set to charge the battery N times, the time interval between the mth charge and the M +1 th charge is greater than or equal to the second threshold, and each charge time is less than or equal to the third threshold. Specifically, N is a positive integer greater than 1, and is used to indicate the total number of times the range extender is started. N may be set to a fixed value for limiting the total number of times the range extender is activated during each power-on shutdown. N may also be specifically set according to the specific parking electricity utilization time and power in the current parking electricity utilization state, or according to the tolerance of the user, which is not limited herein.
In the charging control method provided by the embodiment of the present invention, for an electric vehicle with a range extender, when the electric vehicle is in a power consumption state during parking and the remaining battery capacity is less than or equal to a first threshold, the range extender is controlled to intermittently charge the battery. In the process, the time interval between two adjacent charging is set to be larger than or equal to a second threshold, and the charging time is smaller than or equal to a third threshold. Therefore, the charging time of each time can be guaranteed not to be too long, and the NVH of the electric vehicle is limited within a proper range tolerable by a user, so that the user has better riding experience. In addition, the battery is charged discontinuously, so that the power consumption in the parking power utilization state can be met, the power consumption of the electric vehicle in the driving state switched from the parking power utilization state can be met, and the charging scheme of the electric vehicle is optimized.
On the basis of the foregoing embodiment, after the step of controlling the range extender to intermittently charge the battery when the remaining battery capacity is less than or equal to the first threshold in step 102, the method may further include:
when a preset charging stopping condition is reached, controlling the range extender to stop charging; wherein,
the preset stop charging condition may be determined by any one of the following ways:
the total charging time of the battery by the range extender reaches a preset total time; or,
the charging times are equal to the preset total charging times; or,
the remaining oil amount of the electric vehicle is less than or equal to a preset minimum oil amount.
In the embodiment, when the electric vehicle reaches certain preset charging stopping conditions, the range extender is controlled to be turned off and the repeated charging operation is stopped, considering the normal running requirement of the electric vehicle and the limitation of the accumulated tolerance degree of the user on the working vibration of the range extender. Therefore, the whole fuel of the electric vehicle can be effectively prevented from being exhausted by continuous charging, and the discomfort of carsickness and the like caused by long-time intermittent vibration of a user can be avoided.
In the present embodiment, the set charging stop condition may include: the total charging time of the range extender reaches the preset total time, or the charging time M is equal to the preset total charging time N, or the residual oil quantity of the electric vehicle is less than or equal to the preset minimum oil quantity. Therefore, the charging control scheme can be optimized in the aspects of reserving the residual fuel of the electric vehicle to ensure the normal running of the electric vehicle, avoiding uncomfortable feeling of a user and the like.
In one embodiment, each charging time is equal, and the time interval between every two adjacent charging times is increased along with the increase of the charging times; or,
the intervals between any two adjacent charges are equal, and the charging time of each time is reduced along with the increase of the charging times.
In this embodiment, the charging control scheme is optimized in two ways, including: the time interval between each charging is equal but the time interval between adjacent charges gradually decreases, and the time interval between each adjacent charge is equal but the time interval between each charging is equal.
Further, the power for charging the battery by the range extender is increased along with the increase of the charging times.
In the present embodiment, the power of the range extender is set to be not constant every time the battery is charged, and to be increased as the number of times of charging M increases. Thus, the total amount of electricity charged per unit time increases. If the time of each charging is constant, the converted electric quantity is more after each charging for the constant time than the last time, the time required for consuming the more electric quantity to the first threshold value is longer, and accordingly, the interval time between the two charging operations is longer, that is, the user can feel no vibration of the range extender in a longer time, and the riding is more comfortable.
During specific implementation, each charging time can be kept constant, and the charging power is gradually increased, so that the charging time interval of every two adjacent charging times is gradually reduced, and the user experience is optimized under the condition that the residual electric quantity of the battery is kept to be enough used.
In another specific embodiment, before the step of controlling the range extender to intermittently charge the battery in step 102, the method may further include:
receiving a single charging time length sent by a user terminal;
and taking the single charging time as the third threshold.
In this embodiment, the charging control device is connected to a user terminal, and a user can perform data interaction with the charging control device through the user terminal to adjust parameters set in the charging control device. The charging control device may receive a single charging time length sent by the user terminal, and control the time of the single charging of the range extender within a third threshold value as the third threshold value. The user can input the user-defined single charging duration according to the tolerance of the user, and the user applicability of charging control is improved.
In addition, in order to provide better driving experience for a user, before the range extender is started each time, the charging control device can prompt the user through the user terminal about how long the range extender is expected to be started, and after the range extender is started, how long the range extender is expected to work. After the range extender works for a period T, the charging quantity is estimated, and the oil consumption is estimated. The user can set the charging time T through the user terminal according to the current use condition, and the working time of the range extender is shortened or prolonged.
In another specific embodiment, the method may further include:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is switched from the parking power utilization state to a running state;
and under the condition that the residual battery capacity is less than or equal to a fourth threshold value, controlling the range extender to charge the battery until the residual battery capacity reaches a fifth threshold value.
The charging control method provided by the embodiment adds a charging control scheme after the state of the electric vehicle is switched. If the electric vehicle is in a parking power utilization state, the charging control method according to the embodiment shown in fig. 1 is used for intermittently charging the battery. If the electric vehicle is switched from the parking power utilization state to the driving state, the vibration sense of the range extender is buffered by considering wind noise and the like at the moment, so that the range extender can be controlled to stop charging the battery to the fifth threshold value, the battery is fully charged at one time, and the driving requirement is met. In this process, the fourth threshold may be set according to the battery power required for the electric vehicle to run, for example, the fourth threshold may be set to be equal to the first threshold, that is, the fourth threshold may be set to be equal to or slightly larger than the minimum power required for the electric vehicle to normally start or run, or the fourth threshold may be set to be smaller than the first threshold, and is not limited.
An embodiment of the charging control method provided below will be described in detail with reference to fig. 2.
Step 201, when the electric vehicle is in a parking power utilization state, entering a charging control mode in the parking power utilization state, and setting the starting frequency of the range extender as M, wherein M is 0;
If not, returning to the step 203;
if yes, executing step 204, controlling the range extender to start, and charging the battery according to the power Pm, wherein M is M + 1;
if not, returning to the step 203;
if yes, the process is ended.
In the present embodiment, the charge control device enters the charge control mode in the parking power utilization state when it is determined that the electric vehicle is in the parking power utilization state.
In the control process, the lowest value of the electric quantity is set as a fixed value, namely, the range extender starts charging when the residual electric quantity of the battery is monitored to be lower than the fixed value every time. The charging power of the range extender is increased along with the increase of M, Pm is increased, the highest value of the electric quantity is increased along with the increase of M, and the charging working time T of each time is a fixed value.
According to the above strategy, since the charging power is increased after each time the range extender is started, the time for turning off the range extender is also increased after the range extender is turned off. Meanwhile, the actual working time of the range extender is not increased because the time of each charging is limited. On the basis of not increasing the charging time of the range extender, the shutdown time of the range extender is prolonged, and better feeling is brought to a user. Meanwhile, the maximum value of Pm is set in consideration of the tolerance degree of a user, and when the circulation times are increased, the Pm is not increased any more. The setting of Pm needs to take into account the NVH tolerance value acceptable to the average user.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a charging control device according to an embodiment of the present invention. As shown in fig. 3, the charge control device 300 includes:
the monitoring module 301 is configured to monitor a remaining battery capacity of the electric vehicle when the electric vehicle is in a parking power utilization state;
the control module 302 is configured to control the range extender to intermittently charge the battery when the remaining battery power is less than or equal to a first threshold;
and the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time is less than or equal to a third threshold each time.
Optionally, the control module 302 is further configured to:
when a preset charging stopping condition is reached, controlling the range extender to stop charging; wherein,
the preset stop charging condition is determined by any one of the following modes:
the total charging time of the battery by the range extender reaches a preset total time; or,
the charging times are equal to the preset total charging times; or,
the remaining oil amount of the electric vehicle is less than or equal to a preset minimum oil amount.
Optionally, each charging time is equal, and the time interval between each two adjacent charges increases with the increase of the charging times; or,
the time intervals between any two adjacent charges are equal, and the charging time of each time is reduced along with the increase of the charging times.
Optionally, the power for charging the battery by the range extender is increased with the increase of the charging times.
Optionally, the first threshold is greater than or equal to a minimum battery level required for the electric vehicle to travel.
Optionally, as shown in fig. 4, the charging control apparatus 300 further includes:
a receiving module 303, configured to receive a single charging duration sent by a user terminal;
a determining module 304, configured to use the single charging duration as the third threshold.
Optionally, the monitoring module 301 is further configured to:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is switched from the parking power utilization state to a running state; and the number of the first and second groups,
the control module 302 is further configured to:
and under the condition that the residual battery capacity is less than or equal to a fourth threshold value, controlling the range extender to charge the battery until the residual battery capacity reaches a fifth threshold value.
The charging control device provided by the embodiment of the invention is directed to an electric vehicle provided with a range extender, and when the electric vehicle is in a power utilization state during parking and the remaining battery capacity is less than or equal to a first threshold, the range extender is controlled to intermittently charge the battery. In the process, the time interval between two adjacent charging is set to be larger than or equal to a second threshold, and the charging time is smaller than or equal to a third threshold. Therefore, the charging time of each time can be guaranteed not to be too long, and the NVH of the electric vehicle is limited within a proper range tolerable by a user, so that the user has better riding experience. In addition, the battery is charged discontinuously, so that the power consumption in the parking power utilization state can be met, the power consumption of the electric vehicle in the driving state switched from the parking power utilization state can be met, and the charging scheme of the electric vehicle is optimized. For a specific implementation process of the charging control apparatus provided in the embodiment of the present invention, reference may be made to the specific implementation process of the charging control method provided in the embodiment shown in fig. 1 and fig. 2, and details are not repeated here.
In addition, an embodiment of the present invention further provides an electric vehicle including the charging control apparatus provided in the embodiments shown in fig. 3 and 4.
For a specific implementation process of the electric vehicle provided in this embodiment, reference may be made to the specific implementation process of the charging control method provided in the embodiment shown in fig. 1 and fig. 2, and details are not repeated here.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A charge control method, characterized by being applied to an electric vehicle provided with a range extender, the method comprising:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is in a parking power utilization state;
under the condition that the residual electric quantity of the battery is smaller than or equal to a first threshold value, controlling the range extender to intermittently charge the battery, wherein the power Pm for charging the battery by the range extender is increased along with the increase of the charging times, and the set Pm has a maximum value;
the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time is less than or equal to a third threshold each time; the charging time is equal every time, and the time interval between every two adjacent charging times is increased along with the increase of the charging times; or the time intervals between any two adjacent charging are equal, and the charging time of each time is reduced along with the increase of the charging times.
2. The method of claim 1, wherein after the step of controlling the range extender to intermittently charge the battery if the remaining battery charge is less than or equal to a first threshold, the method further comprises:
when a preset charging stopping condition is reached, controlling the range extender to stop charging; wherein,
the preset stop charging condition is determined by any one of the following modes:
the total charging time of the battery by the range extender reaches a preset total time; or,
the charging times are equal to the preset total charging times; or,
the remaining oil amount of the electric vehicle is less than or equal to a preset minimum oil amount.
3. The method of claim 1, wherein the first threshold is greater than or equal to a minimum battery charge required for travel of the electric vehicle.
4. The method of claim 1, wherein prior to the step of controlling the range extender to intermittently charge the battery, the method further comprises:
receiving a single charging time length sent by a user terminal;
and taking the single charging time as the third threshold.
5. The method of claim 1, further comprising:
when the electric vehicle is switched from the parking power utilization state to a driving state, monitoring the residual battery capacity of the electric vehicle;
and under the condition that the residual battery capacity is less than or equal to a fourth threshold value, controlling the range extender to charge the battery until the residual battery capacity reaches a fifth threshold value.
6. A charge control device, characterized by being applied to an electric vehicle provided with a range extender, comprising:
the monitoring module is used for monitoring the residual battery capacity of the electric vehicle when the electric vehicle is in a parking power utilization state;
the control module is used for controlling the range extender to intermittently charge the battery under the condition that the residual electric quantity of the battery is less than or equal to a first threshold value, the power Pm for charging the battery by the range extender is increased along with the increase of the charging times, and the set Pm has a maximum value;
the time interval between any two adjacent charging is greater than or equal to a second threshold, and the charging time is less than or equal to a third threshold each time; the charging time is equal every time, and the time interval between every two adjacent charging times is increased along with the increase of the charging times; or the time interval between any two adjacent charging is equal, and the charging time of each time is reduced along with the increase of the charging times.
7. The charging control device of claim 6, wherein the control module is further configured to:
when a preset charging stopping condition is reached, controlling the range extender to stop charging; wherein,
the preset charging stop condition is determined by any one of the following modes:
the total charging time of the battery by the range extender reaches a preset total time; or,
the charging times are equal to the preset total charging times; or,
the remaining oil amount of the electric vehicle is less than or equal to a preset minimum oil amount.
8. The charge control device according to claim 6, characterized in that the first threshold value is greater than or equal to a minimum amount of battery power required for the electric vehicle to travel.
9. The charge control device according to claim 6, characterized by further comprising:
the receiving module is used for receiving the single charging time length sent by the user terminal;
and the determining module is used for taking the single charging time as the third threshold.
10. The charge control device of claim 6, wherein the monitoring module is further configured to:
monitoring the residual battery capacity of the electric vehicle when the electric vehicle is switched from the parking power utilization state to a running state; and (c) a second step of,
the control module is further configured to:
and under the condition that the residual battery capacity is less than or equal to a fourth threshold, controlling the range extender to charge the battery until the residual battery capacity reaches a fifth threshold.
11. An electric vehicle characterized by comprising the charge control apparatus according to any one of claim 6 to claim 10.
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| CN201910360834.6A CN111845378B (en) | 2019-04-30 | 2019-04-30 | Charging control method, charging control device and electric vehicle |
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| CN111845378A CN111845378A (en) | 2020-10-30 |
| CN111845378B true CN111845378B (en) | 2022-06-24 |
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| CN201910360834.6A Active CN111845378B (en) | 2019-04-30 | 2019-04-30 | Charging control method, charging control device and electric vehicle |
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