CN115742781A - Battery charging method and device, electronic equipment and storage medium thereof - Google Patents
Battery charging method and device, electronic equipment and storage medium thereof Download PDFInfo
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- CN115742781A CN115742781A CN202211486422.5A CN202211486422A CN115742781A CN 115742781 A CN115742781 A CN 115742781A CN 202211486422 A CN202211486422 A CN 202211486422A CN 115742781 A CN115742781 A CN 115742781A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses a battery charging method and device, electronic equipment and a storage medium thereof. The method comprises the following steps: for a battery to be charged, controlling the battery to be charged to perform charging in a first stage; under the condition that the electric quantity of the battery to be charged meets the condition of electric quantity storage, finishing the charging in the first stage; and determining the initial time information of the second stage of the battery to be charged based on the battery replacement requirements of the battery replacement station and/or the charging consumption information at each moment, and controlling the battery to be charged in the second stage based on the initial time information of the second stage. The method provides a flexible management mode of the battery replacement station at the battery replacement station end, flexibly allocates the charging and storage conditions of the battery by identifying the time interval and predicting the subsequent battery replacement requirement, solves the problem of rapid attenuation of the battery caused by long-term high-rate charging and high-residual-capacity storage of the battery replacement station, and optimizes the service life of the battery to the greatest extent.
Description
Technical Field
The present invention relates to the field of battery charging technologies, and in particular, to a battery charging method and apparatus, an electronic device, and a storage medium thereof.
Background
In recent years, the development of electric vehicles is an inevitable trend of the development of the automobile industry, and for pure electric vehicles, two energy supply modes of charging the whole vehicle and replacing batteries are mainly adopted.
At present, the whole electric vehicle is charged by adopting an alternating current slow charging mode, so that the time is long, and the parking place is limited; the direct current quick charging has high power and short charging time, but has larger impact on a power grid, and can also reduce the service life of a battery. The charging is carried out in a battery replacement mode, different charging powers are distributed to the power replacement peak and the power replacement valley frequency, the charging power is increased in the power replacement peak period to accelerate the charging speed of the battery pack, the charging power is decreased in the power replacement valley period to trickle charge, and the fully charged battery is stored for the use of replacing the battery of the vehicle.
Based on the above prior art scheme, under the condition of charging in the battery replacement mode, different charging powers are allocated to the power replacement peak frequency and the power replacement valley frequency for charging until the electric quantity of the battery is fully charged, and the storage mode for replacing the battery is generally stored in the full-charge state of the battery, so that the storage mode is not beneficial to the use of the battery, the attenuation of the battery capacity can be accelerated to different degrees, and the service life of the battery can be shortened.
Disclosure of Invention
The invention provides a battery charging method, a battery charging device, electronic equipment and a storage medium thereof, which are used for solving the problem of rapid battery attenuation caused by long-term high-rate charging and high-residual-capacity storage of a battery of a charging station.
According to an aspect of the present invention, there is provided a battery charging method including:
for a battery to be charged, controlling the battery to be charged to perform charging in a first stage;
under the condition that the electric quantity of the battery to be charged meets the condition of electric quantity storage, finishing the charging in the first stage;
and determining the starting time information of the second stage of the battery to be charged based on the battery replacement demand of the battery replacement station and/or the charging consumption information at each moment, and controlling the battery to be charged in the second stage based on the starting time information of the second stage.
Optionally, before controlling the first-stage charging of the battery to be charged, the method further includes:
and determining a storage electric quantity condition corresponding to the battery to be charged according to the battery type of the battery to be charged, wherein the storage electric quantity condition comprises a storage electric quantity threshold value.
Optionally, determining, based on a battery replacement demand of the battery replacement station, start time information of a second stage of the battery to be charged, where the start time information includes:
and determining a power conversion peak time period in the power conversion demand of the power conversion station, and determining the initial time information of the second stage based on the power conversion peak time period and the charging time of the second stage.
Optionally, determining a power swapping peak time in the power swapping demand of the power swapping station includes:
acquiring historical power change data, counting the power change amount of each historical unit time interval, and determining a power change peak time interval according to the power change amount of each historical unit time interval; alternatively, the first and second liquid crystal display panels may be,
historical power change data are obtained, the historical power change data are processed on the basis of a power change prediction model, the predicted power change amount of each time period in a prediction time range is obtained, and the power change peak time period is determined on the basis of the predicted power change amount of each time period.
Optionally, determining a power swapping peak time period in the power swapping demand of the power swapping station includes: acquiring a power conversion reservation order, counting reservation order data of each future time period, and determining a power conversion peak time period based on the reservation order data of each future time period.
Optionally, determining the starting time information of the second stage of the battery to be charged based on the charging consumption information at each time includes:
determining at least one charging time period with lowest total consumption according to the charging time length of the second stage and the charging consumption information at each moment;
start time information of at least one sub-phase in the second phase is determined based on the start time information of the charging period.
Optionally, determining the starting time information of the second stage of the battery to be charged based on the charging consumption information at each moment, including:
determining at least one charging period with lowest total consumption according to the charging consumption information at each moment;
determining the starting time information of at least one sub-phase in the second phase according to the starting time information of the charging period; and determining a charging rate according to the charging amount of the second stage and the charging duration of at least one charging period;
correspondingly, the control of the second-stage charging of the battery to be charged based on the start time information of the second stage includes: and controlling the battery to be charged to perform the second-stage charging on the basis of the starting time information and the charging rate of at least one sub-stage.
Optionally, determining the starting time information of the second stage of the battery to be charged based on the battery replacement demand of the battery replacement station and/or the charging consumption information at each moment, where the determining includes:
determining a power swapping peak period in the power swapping requirement of the power swapping station;
and in a chargeable period between the current moment and the battery replacement peak period, determining at least one charging period with the lowest total consumption according to the charging consumption information at each moment, and determining the starting time information of the charging period as the starting time information of at least one sub-stage in the second stage.
According to another aspect of the present invention, there is provided a battery charging apparatus including:
the first-stage charging control module is used for controlling the first-stage charging of the battery to be charged;
the first-stage charging ending module is used for ending the first-stage charging under the condition that the electric quantity of the battery to be charged meets the condition of the stored electric quantity;
and the second-stage charging control module is used for determining the starting time information of the second stage of the battery to be charged based on the battery replacement demand of the battery replacement station and/or the charging consumption information at each moment, and controlling the battery to be charged to carry out the second-stage charging based on the starting time information of the second stage.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the battery charging method of any of the embodiments of the invention.
According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to implement the battery charging method of any one of the embodiments of the present invention when executed.
According to the technical scheme of the embodiment of the invention, the charging and storage conditions of the battery are flexibly allocated by adopting a flexible power exchanging station and a flexible management mode, identifying the time period and predicting the subsequent power exchanging requirement, so that the problem of rapid battery attenuation caused by long-term high-rate charging and high-residual-capacity storage of the battery of the power exchanging station is solved, and the service life of the battery is optimized to the greatest extent.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below 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 the drawings without creative efforts.
Fig. 1 is a flowchart of a battery charging method according to an embodiment of the present invention;
fig. 2 is a flowchart of a battery charging method according to a second embodiment of the present invention;
fig. 3 is a flowchart of a battery charging method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a battery charging apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device implementing an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a flowchart of a battery charging method according to an embodiment of the present invention, where the present embodiment is applicable to a case where a vehicle battery is charged and stored, the method may be executed by a battery charging apparatus, the battery charging apparatus may be implemented in a form of hardware and/or software, the battery charging apparatus may be configured in an electronic device configured by a charging station, such as a charging station control system, and the electronic device may include, but is not limited to, a computer, a mobile phone, or a server. As shown in fig. 1, the method includes:
and S110, controlling the first-stage charging of the battery to be charged.
And S120, under the condition that the electric quantity of the battery to be charged meets the condition of the stored electric quantity, finishing the charging in the first stage.
The battery to be charged may be specifically understood as a battery with a low remaining capacity or a battery replaced from a battery replacement vehicle, and the remaining capacity is generally represented by a percentage, and may also be referred to as a remaining capacity, which is represented by a State of Charge (SOC) value. Whether the battery needs to be charged or not can be judged by setting a residual capacity threshold value through the charging control system, for example, the battery threshold value of the residual capacity is set to be 30%, and if the SOC value of the battery is smaller than 30%, the battery can be charged through charging equipment such as a charging pile. Or the driver can autonomously judge whether the vehicle battery needs to be charged according to the own travel, and if so, the vehicle battery also belongs to the battery to be charged.
And for any battery to be charged, the charging equipment is respectively connected with one charging equipment, and the charging equipment charges the battery to be charged. Meanwhile, the battery capacity data of the battery to be charged is acquired through the charging equipment, and the detected battery capacity data is transmitted to the power conversion station control system in the embodiment, wherein the charging equipment and the power conversion station control system can be in communication connection, and data transmission can be performed.
Because the battery to be charged is replaced from the battery replacing vehicle, the battery needs to be stored in the process of replacing the vehicle next time, but the under-charge storage and the full-charge storage are not favorable for the service life of the battery. In this embodiment, the battery to be charged is charged in stages. The staged charging is a strategy set for ensuring that the battery to be charged can be in a good charging state, mainly judging and setting according to data such as the SOC value, the battery swapping requirement and the charging consumption information of the battery to be charged, and the staged charging strategy suitable for the battery to be charged can be obtained by analyzing the data such as the SOC value, the battery swapping requirement and the charging consumption information of the battery to be charged through a prediction model.
Specifically, the charging process is divided into two stages, the battery to be charged is charged in the first stage through control, and the battery to be charged is stored under the condition that the electric quantity storage condition is achieved, so that the service life of the battery is optimized. Specifically, the charging device may be controlled to perform the first-stage charging on the battery to be charged by sending a control instruction to the charging device, where the control instruction includes, but is not limited to, a charging start time, a charging end time, a charging rate, and the like. Optionally, the charging rate may correspond to a fast charging current (e.g., a maximum charging current) of the battery to be charged, for example, the first charging rate may be set to be 1C, if a nominal capacity of the battery to be charged is 1000mAh, a fast charging current corresponding to the battery to be charged is 1A, and if the nominal capacity of the battery to be charged is 2000mAh, a fast charging current corresponding to the battery to be charged is 2A. The charging rate of the first stage may be a preset rate that is beneficial for optimizing the service life of the battery, and the preset rate may be determined according to the type of the battery.
Optionally, before controlling the first-stage charging of the battery to be charged, the method further includes: and determining a storage electric quantity condition corresponding to the battery to be charged according to the battery type of the battery to be charged, wherein the storage electric quantity condition comprises a storage electric quantity threshold value.
The storage electric quantity threshold is particularly understood as a storage electric quantity threshold which is beneficial to optimizing the service life of the battery under the condition that the battery is in a storage state, and if the battery is stored under the condition that the residual electric quantity of the battery is equal to the storage electric quantity threshold, the attenuation speed of the battery capacity can be reduced. For different battery types, the corresponding threshold values of the stored electricity quantity can be different, the battery type and the threshold value of the stored electricity quantity are in a corresponding relation, and the threshold value of the stored electricity quantity corresponding to the battery type can be obtained through experimental data. Correspondingly, the storage capacity condition of the battery to be charged can be determined by acquiring the battery type of the rechargeable battery. The battery type of the battery to be charged may be obtained by a battery identification apparatus, or may be determined by a charging device connected to the battery to be charged, for example, by reading a preset field identifier of data stored in the battery to be charged. Optionally, the charging device sends the charging device identifier and the battery type identifier of the connected to-be-charged battery to the power swapping station control system, and the power swapping station control system determines the corresponding threshold of the stored power amount, that is, the stored power amount condition, based on the battery type identifier.
Illustratively, after the battery to be charged is replaced from the end of the vehicle, the charging device is connected, the cell voltage of the battery is recognized by the charging device, the battery is charged to about 50% SOC with 2.7V as a limit, and is stored, the SOC is improved, and the battery charging time can be shortened.
In the present embodiment, basic information of the battery to be charged and the threshold value of the amount of stored electricity are determined, and the first-stage charging of the battery to be charged is controlled according to these pieces of information.
The condition of the stored electric quantity may be specifically understood as an electric quantity condition that the battery to be charged can enter a storage state, and if the battery to be charged is charged until the stored electric quantity of the battery reaches the threshold value of the stored electric quantity, it may be determined that the battery to be charged meets the condition of the stored electric quantity.
Specifically, the battery type of the battery to be charged can be identified and the condition of the stored electric quantity can be determined, the electric quantity of the battery to be charged can be detected in real time in the charging process of the battery to be charged, the detected electric quantity is matched with the condition of the stored electric quantity, if the matching result is consistent, the electric quantity of the battery to be charged meets the condition of the stored electric quantity, at the moment, the charging of the battery to be charged can be controlled to stop, and the charging in the first stage is finished. Specifically, the charging device may receive the battery power transmitted by the charging device in real time or at regular time, and transmit a charging stop instruction to the charging device when the battery power satisfies the condition of the stored power.
For example, the condition of the stored electricity amount is set to be that the SOC value is 50%, low-power slow charging and replenishing electricity can be adopted, when the battery to be charged is charged to the SOC value of 50%, the charging can be stopped, the charging in the first stage is finished, and the next stage of charging is performed after waiting for a recharging instruction of the charging station control system.
In this embodiment, the electric quantity of the battery to be charged in the charging process is detected in real time, and if the electric quantity of the battery to be charged meets the electric quantity storage condition, it is determined that the electric quantity of the battery to be charged meets the electric quantity storage condition, and the battery control system can end the charging process of the battery to be charged, thereby completing the charging process in the first stage. The method controls the end of the first-stage charging, so that the residual electric quantity of the battery to be charged is in a state suitable for storage, the attenuation degree of the battery capacitor caused by overlarge storage electric quantity of the battery is avoided, and the service life of the battery is effectively optimized.
And S130, determining the starting time information of the second stage of the battery to be charged based on the battery replacement demand of the battery replacement station and/or the charging consumption information at each moment, and controlling the battery to be charged in the second stage based on the starting time information of the second stage.
The battery replacement requirement can be specifically understood as a requirement of the battery replacement station for replacing the available battery in a future time period, wherein the battery replacement requirement includes a required number of the available battery in each unit time period in the future time period. The battery replacement demand can be obtained based on prediction of historical battery replacement data, or can be determined based on the number of received battery replacement requests, for example, the battery replacement demand information reported by a user can be received by a battery replacement station through a short message, a telephone, an application program and the like, and the battery replacement demand information can include information such as a battery model and battery replacement time.
The charging consumption information at each time specifically refers to the charging standard of the electricity fee at each time, for example, the peak time is 7:00 to 11:00, 19:00 to 23:00, the electricity price is 0.5583 yuan/kilowatt hour; the trough period was 23: 00-day 7:00, electricity price of 0.3583 yuan/kilowatt hour; the usual time period is 11:00 to 19:00, the electricity price is 0.5283 yuan/kilowatt hour, and the electricity charge standard is different at different times or in different regions.
The second stage may be specifically understood as a second stage in the staged charging of the battery to be charged, which is used to charge the battery to be charged until the battery capacity is in a full state. The determination of the initial time information of the second stage is obtained according to the further analysis of the power conversion requirements of the power conversion station and/or the charging consumption information at each moment, and the data analysis can be performed on the power conversion requirements of the power conversion station and/or the charging consumption information at each moment through a requirement analysis model to obtain the initial time of the second stage of the battery to be charged. And charging the battery in the second stage according to the determined starting time of the second stage.
Specifically, the received power change demand information and the charging consumption information at each moment can be analyzed by the power change station control system, the information can be processed through the data analysis model, the corresponding information of the second-stage charging duration, the charging electric quantity and the like of the battery to be charged is obtained, the starting time of the second stage is determined, and the battery charging system controls the battery to be charged in the second stage according to the obtained starting time.
And sending a control instruction to the charging equipment according to the determined starting time information of the second stage so that the charging equipment charges the battery to be charged based on the starting time information of the second stage, and stopping the charging of the second stage until the electric quantity of the battery to be charged meets the charging ending condition.
According to the technical scheme of the embodiment, the information is analyzed by the data analysis model through the charging demand received by the charging station and/or the charging consumption information at each moment, so that the information such as the staged charging time, the stored electric quantity condition, the second-stage starting time and the like is obtained, and the staged charging of the battery to be charged is completed. The method comprises the steps of charging a battery to be charged in a staged charging mode, storing the battery which is charged in the first stage according to the obtained condition of stored electric quantity, and controlling and executing the charging in the second stage by a battery control system according to the starting time of the second stage, so that the battery to be charged can be charged as required, the situations that the battery cannot be replaced timely after a full charge point and the battery is replaced when the battery is not fully charged are avoided, and the consumption of energy is reduced.
Example two
Fig. 2 is a flowchart of a battery charging method according to a second embodiment of the present invention, where the method is optimized based on the above embodiment, and based on a power swapping requirement of a power swapping station, initial time information of a second stage of a battery to be charged is determined, optionally, a power swapping peak time period in the power swapping requirement of the power swapping station is determined, and based on the power swapping peak time period and a charging duration of the second stage, the initial time information of the second stage is determined. As shown in fig. 2, the method includes:
and S210, controlling the first-stage charging of the battery to be charged.
And S220, under the condition that the electric quantity of the battery to be charged meets the condition of the stored electric quantity, finishing the charging in the first stage.
And S230, determining a power swapping peak time period in the power swapping requirement of the power swapping station, and determining the starting time information of the second stage based on the power swapping peak time period and the charging duration of the second stage.
The power exchange peak time refers to a time period with a high power exchange demand, and specifically may be understood as one or more time periods with a large number of power exchange requests received by a power exchange station control system in one day, where the time period includes but is not limited to one hour, two hours, and the like, and the determination may be completed by setting a power exchange request number threshold, for example, calculating the power exchange peak time in one day, setting the power exchange request threshold to be 100 per hour, comparing the actual power exchange request number in each hour with the power exchange request number threshold, and regarding a time period exceeding the power exchange request number threshold as the power exchange peak time period; and the judgment can be carried out through a power conversion prediction model. The charging duration of the second stage can be specifically understood as the length of time required for the stored charge of the battery to be charged to reach a full charge state from a charge state meeting the storage condition. The calculation can be carried out through a formula model, and the calculation can also be carried out through a control system.
Specifically, according to the power change requirements of the power change station collected by the power change station control system, the power change peak time in one day is determined by a certain method, for example, a power change request quantity threshold is set, the one day is segmented according to hours, the power change requirement quantity actually received in each time interval is different from the power change request quantity threshold, if the difference value is greater than zero, the time interval can be regarded as the power change peak time, and similarly, the time intervals meeting the power change requirement quantity threshold are sequentially acquired. And calculating to obtain the initial time information of the second stage of the battery to be charged according to the battery replacement time, the battery replacement requirement and the SOC value of the battery to be charged.
Optionally, historical battery replacement data is obtained, the battery replacement amount at each historical unit time interval is counted, and a battery replacement peak time interval is determined according to the battery replacement amount at each historical unit time interval.
The historical battery swapping data can be specifically understood as a battery swapping history record in a battery swapping station, and can be read from a database in a battery swapping station control system or a server, which is not limited here. The battery replacement amount in the historical unit time period may be specifically understood as the total accumulated battery replacement amount in the past unit time period, where the unit time period may be set according to an actual requirement, and may be set to be one day, one week, and the like, which is not limited herein. The determination of the power conversion peak time period is determined according to the statistical power conversion amount of each historical time period, and can be determined by setting a parameter threshold method or a prediction model.
Specifically, the obtained historical electricity change data is counted in different time periods, the time periods can be set according to requirements, if a peak time period in a day is required to be obtained, an hour can be set as a unit time period, the electricity change amount in each hour is counted, and the electricity change amount in each unit time period is obtained. And setting a high-peak power exchange threshold value by a parameter threshold value setting method, wherein if the power exchange amount in a unit time period is greater than the high-peak power exchange threshold value, the time period is the power exchange peak time period.
Optionally, historical battery swapping data is obtained, the historical battery swapping data is processed based on a battery swapping prediction model, a predicted battery swapping amount at each time interval in a prediction time range is obtained, and a battery swapping peak time interval is determined based on the predicted battery swapping amount at each time interval.
The prediction model is a model which analyzes historical data through a certain analysis method so as to obtain a data development rule to predict corresponding data in a future time period. The power conversion prediction model can be specifically understood as a model for analyzing historical power conversion data to obtain a predicted power conversion amount within a prediction time range, so as to determine a power conversion peak period within a prediction time period. Alternatively, the predictive model may be a machine learning model, and further, the predictive model may be a neural network model.
Illustratively, the obtained historical power change data is analyzed, unit time is set to be one hour, power change amount in all unit time in the past month is counted, power change amount in unit time period is obtained, the obtained power change amount in each unit time period is input into a power change prediction model as an input parameter, predicted power change amount in each unit time period in the prediction time period is output, the predicted power change amount is analyzed, a peak power amount threshold value is set, and the unit time period to which the power change amount exceeding the threshold value belongs is the power change peak time period.
Optionally, the power conversion reservation order is obtained, reservation order data of each future time period is counted, and a power conversion peak time period is determined based on the reservation order data of each future time period.
The swapping reservation order can be specifically understood as a swapping reservation request sent by a user to a swapping station control system through an application program, a telephone and the like.
Specifically, a power change demand sent by a user for power change in a future time period is received through the power change station control system, the received reservation information is stored and counted by the power change station control system, reservation order data in each time period is obtained, a reservation order threshold value can be set, if the number of the reservation orders exceeds the threshold value, it can be judged that the unit time period is in a power change peak period, and otherwise, the unit time period is not in the power change peak period.
And on the basis of determining the power conversion peak time, determining the starting time information of the second stage based on the starting time of the power conversion peak time and the charging time of the second stage, wherein the starting time information of the second stage is the time difference between the starting time of the power conversion peak time and the starting time of the power conversion peak time before the starting time of the power conversion peak time, and is greater than or equal to the charging time of the second stage.
And S240, controlling the battery to be charged to be in the second stage based on the starting time information of the second stage.
For example, when the charging is in the idle stage and there is no charging demand, a small-rate power supplement, i.e., constant current 0.3C charging to 50% storage, may be employed, and the subsequent 50% soc or more charging may be performed in advance according to the estimated time of 0.3C charging. On the contrary, if the battery replacement is busy, the battery replacement requirement is in a peak period, the high-rate quick charging and the constant-current 1.2C quick charging can be adopted, and the actual operation requirement is met.
In the technical scheme of this embodiment, based on the information of the battery replacement demand obtained by the battery replacement station, including the information of the historical battery replacement demand, the reservation order of the replacement point, and the like, the information is analyzed by the prediction model to obtain the battery replacement peak time and the predicted battery replacement peak time, so as to obtain the starting time of the second stage and control the start and the end of the second stage of the battery to be charged. The method can help the battery replacement station to complete charging and scheduling of the battery to be charged, so that a user can complete battery replacement of the vehicle without waiting for too long time.
EXAMPLE III
Fig. 3 is a flowchart of a battery charging method according to a third embodiment of the present invention, where the method is optimized based on the third embodiment, and optionally, the starting time information of the second stage of the battery to be charged is determined based on the charging consumption information at each time, and at least one charging period with the lowest total consumption is determined according to the charging consumption information at each time; determining the starting time information of at least one sub-phase in the second phase according to the starting time information of the charging period; and determining a charging rate according to the charging amount of the second stage and the charging duration of at least one charging period; and controlling the battery to be charged to perform the second-stage charging on the basis of the starting time information and the charging rate of at least one sub-stage. As shown in fig. 3, the method includes:
and S310, controlling the first-stage charging of the battery to be charged.
And S320, under the condition that the electric quantity of the battery to be charged meets the condition of the stored electric quantity, finishing the charging in the first stage.
And S330, determining the starting time information of the second stage of the battery to be charged based on the charging consumption information at each moment.
Optionally, at least one charging period with the lowest total consumption is determined according to the charging consumption information at each time, and is used as at least one sub-stage in the second stage.
The total consumption can be specifically understood as the total amount consumed by fully charging the battery to be charged, and because the charging consumption information at different times has a certain difference, the charging consumption is generally higher in the peak charging period compared with the charging consumption in other periods. The lowest total consumption is understood to mean in particular the lowest electricity charge required for fully charging the battery to be charged. The charging period of the second stage may be divided into a plurality of charging periods according to the charging consumption information at each time.
Specifically, the electric quantity to be consumed by the fully charged battery can be obtained by the difference between the battery capacity of the battery to be charged and the remaining electric quantity of the battery, the battery to be charged is charged by selecting proper charging power, the charging time duration is obtained by the quotient of the difference between the battery capacity and the remaining electric quantity of the battery and the charging power, and the result is the total consumption amount of the battery to be charged by multiplying the charging time duration by the charging consumption information at each moment. Charging consumption of the battery to be charged in different periods can be calculated through the calculation model, and the time periods with the lowest consumption are obtained, wherein at least one time period with the lowest consumption is obtained.
Optionally, determining start time information of at least one sub-phase in the second phase based on the start time information of the charging period; and determining the charging rate according to the charging amount of the second stage and the charging time length of at least one charging period.
Here, the charging rate is specifically understood as a measure of how fast the battery is charged, and refers to a current value required when the battery is charged to its rated capacity within a certain time, that is, the charging rate = charging current/rated capacity of the battery. The rated capacity of the battery can be obtained by identifying through a battery identification device in the power station control system. The sub-phase is specifically understood to mean that the partial charging period in the second-phase charging may also be a full charging period.
Specifically, the charging period of the second stage may be set to a plurality of sub-stages according to the consumption information at each time. At least the start time of the first sub-phase can be determined by the start information of the charging period, i.e. the start time of the charging period is the start time of the first sub-phase. The charging amount of the second stage is determined by the difference value obtained by subtracting the residual capacity of the battery to be charged from the battery capacity of the battery to be charged. And obtaining the charging time of the second stage according to the charging consumption information and the charging amount, further obtaining the charging current information of the second stage, and determining the charging rate according to the formula charging rate = charging current/rated capacity of the battery.
And S340, controlling the battery to be charged to carry out the second-stage charging based on the starting time information and the charging rate of at least one sub-stage.
Specifically, the battery charging control system executes the charging operation of the second stage of the battery to be charged according to the obtained charging rate and the start time, and stops charging after the battery is fully charged.
On the basis of the above embodiment, the determining the starting time information of the second stage of the battery to be charged based on the battery swapping requirement of the battery swapping station and/or the charging consumption information at each moment further includes: determining a power swapping peak period in the power swapping requirement of the power swapping station; and in a chargeable period between the current moment and the battery replacement peak period, determining at least one charging period with the lowest total consumption according to the charging consumption information at each moment, and determining the starting time information of the charging period as the starting time information of at least one sub-stage in the second stage.
Specifically, the power conversion peak time period is determined according to the power conversion demand received by the power conversion station, and in the chargeable time period between the current time and the power conversion peak time period, the time period with the lowest total consumption in the chargeable time period is obtained according to the obtained charging consumption information at each time, and at least one time period is obtained. The starting time of the charging time period is obtained by obtaining the time period with the lowest total consumption, and the starting time can be used as the starting time of the charging in the second stage, wherein the second stage at least comprises one sub-stage, and then the starting time of the charging time period is the starting time information of at least one sub-stage in the second stage.
In this embodiment, the power conversion demand received by the power conversion station and the charging consumption information at each time are combined to determine the chargeable time period between the power conversion peak time and the current time and the power conversion peak time period, so as to obtain the lowest consumption time period in the chargeable time period, and the starting time of at least one sub-stage in the second stage is obtained according to the information. In this way, part or even all of the charging process in the second stage can be completed in the off-peak time period, effectively reducing the charging consumption required for fully charging the battery to be charged.
In the technical scheme of the embodiment, the starting time and the charging multiplying power of the second stage are obtained through the calculation model and the battery replacement prediction model based on the obtained charging consumption information, and due to the fact that the consumption information at different charging moments is different, the second stage is divided into a plurality of sub-stages to execute the charging task, and the charging consumption can be reduced under the condition that the battery to be charged can be fully charged in time. The charging mode not only ensures the safety of the battery, but also reduces the charging cost.
Example four
Fig. 4 is a schematic structural diagram of a battery charging apparatus according to a fourth embodiment of the present invention. As shown in fig. 4, the apparatus includes:
the first-stage charging control module 410 is configured to control, for a battery to be charged, performing first-stage charging on the battery to be charged;
a first-stage charge ending module 420, configured to end the first-stage charge when the electric quantity of the battery to be charged meets the condition of the stored electric quantity;
and the second-stage charging control module 430 is configured to determine the start time information of the second stage of the battery to be charged based on the battery replacement demand of the battery replacement station and/or the charging consumption information at each time, and control the battery to be charged to perform the second-stage charging based on the start time information of the second stage.
Optionally, the first-stage charging control module 410 is specifically configured to:
and determining a storage electric quantity condition corresponding to the battery to be charged according to the battery type of the battery to be charged, wherein the storage electric quantity condition comprises a storage electric quantity threshold value.
Optionally, the second stage charging control module 430 includes:
the first determination unit of the initial time information is used for determining the initial time information of the second stage of the battery to be charged based on the battery replacing requirement of the battery replacing station;
a second start time information determining unit configured to determine start time information of a second stage of the battery to be charged based on the charge consumption information at each time;
and the starting time information third determining unit is used for determining the starting time information of the second stage of the battery to be charged based on the battery replacing requirements of the battery replacing station and/or the charging consumption information at each moment.
Optionally, the first determining unit of the start time information is specifically configured to:
determining a power swapping peak time period in the power swapping requirement of the power swapping station, and determining initial time information of the second stage based on the power swapping peak time period and the charging time of the second stage;
acquiring historical power change data, counting the power change amount of each historical unit time interval, and determining a power change peak time interval according to the power change amount of each historical unit time interval; alternatively, the first and second electrodes may be,
acquiring historical battery replacement data, processing the historical battery replacement data based on a battery replacement prediction model to obtain a predicted battery replacement amount at each time interval within a prediction time range, and determining a battery replacement peak time interval based on the predicted battery replacement amount at each time interval;
acquiring a power conversion reservation order, counting reservation order data of each future time period, and determining a power conversion peak time period based on the reservation order data of each future time period.
Optionally, the second determining unit of the start time information is specifically configured to:
determining at least one charging time period with lowest total consumption according to the charging time length of the second stage and the charging consumption information at each moment;
determining the starting time information of at least one sub-phase in the second phase according to the starting time information of the charging period;
determining at least one charging period with lowest total consumption according to the charging consumption information at each moment;
determining the starting time information of at least one sub-phase in the second phase according to the starting time information of the charging period; and determining a charging rate according to the charging amount of the second stage and the charging duration of at least one charging period;
correspondingly, the controlling the second-stage charging of the battery to be charged based on the start time information of the second stage includes:
and controlling the battery to be charged to perform the second-stage charging on the battery to be charged based on the starting time information and the charging rate of at least one sub-stage.
Optionally, the third determining unit for starting time information is specifically configured to:
determining a power swapping peak period in the power swapping requirement of the power swapping station;
and in a chargeable period between the current moment and the battery replacement peak period, determining at least one charging period with the lowest total consumption according to the charging consumption information at each moment, and determining the starting time information of the charging period as the starting time information of at least one sub-stage in the second stage.
The battery charging device provided by the embodiment of the invention can execute the battery charging method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention. The electronic device 10 is 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 assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), 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 inventions described and/or claimed herein.
As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 can perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from a storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 may also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and so forth. The processor 11 performs the various methods and processes described above, such as a battery charging method.
In some embodiments, the battery charging method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the battery charging method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the battery charging method 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 circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a 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 that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for implementing the battery charging method of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.
EXAMPLE six
An embodiment of the present invention further provides a computer-readable storage medium, where computer instructions are stored, and the computer instructions are used to enable a processor to execute a battery charging method, where the method includes:
for a battery to be charged, controlling the battery to be charged to perform charging in a first stage;
under the condition that the electric quantity of the battery to be charged meets the condition of the stored electric quantity, finishing the charging in the first stage;
and determining the starting time information of the second stage of the battery to be charged based on the battery replacement demand of the battery replacement station and/or the charging consumption information at each moment, and controlling the battery to be charged in the second stage based on the starting time information of the second stage.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage 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. Alternatively, the computer readable storage medium may be a machine readable signal medium. 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 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 an electronic device 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 a pointing device (e.g., a mouse or a trackball) by which a user may provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end 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 back-end, 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), blockchain networks, and the Internet.
The computing system may include clients and servers. A client and server are generally 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 can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A method of charging a battery, comprising:
for a battery to be charged, controlling the first-stage charging of the battery to be charged;
under the condition that the electric quantity of the battery to be charged meets the condition of electric quantity storage, finishing the charging in the first stage;
and determining the starting time information of the second stage of the battery to be charged based on the battery replacement requirements of the battery replacement station and/or the charging consumption information at each moment, and controlling the charging of the second stage of the battery to be charged based on the starting time information of the second stage.
2. The method of claim 1, further comprising, prior to controlling the first stage of charging of the battery to be charged:
and determining a storage electric quantity condition corresponding to the battery to be charged according to the battery type of the battery to be charged, wherein the storage electric quantity condition comprises a storage electric quantity threshold value.
3. The method as claimed in claim 1, wherein determining the start time information of the second stage of the battery to be charged based on the battery replacement requirement of the battery replacement station comprises:
and determining a power swapping peak time period in the power swapping requirement of the power swapping station, and determining the starting time information of the second stage based on the power swapping peak time period and the charging duration of the second stage.
4. The method of claim 3, wherein the determining a power swapping peak period in power swapping requirements of the power swapping station comprises:
acquiring historical battery replacement data, counting battery replacement amount in each historical unit time interval, and determining the battery replacement peak time interval according to the battery replacement amount in each historical unit time interval; alternatively, the first and second electrodes may be,
obtaining historical power change data, processing the historical power change data based on a power change prediction model to obtain a predicted power change amount in each time period within a prediction time range, and determining the power change peak time period based on the predicted power change amount in each time period.
5. The method of claim 3, wherein the determining a power swapping peak period in power swapping requirements of the power swapping station comprises:
acquiring a power conversion reservation order, counting reservation order data of each future time period, and determining the power conversion peak time period based on the reservation order data of each future time period.
6. The method as claimed in claim 1, wherein the determining the starting time information of the second stage of the battery to be charged based on the charging consumption information at each time comprises:
determining at least one charging time period with lowest total consumption according to the charging duration of the second stage and the charging consumption information at each moment;
determining start time information of at least one sub-phase in the second phase from the start time information of the charging period.
7. The method of claim 1, wherein determining the starting time information of the second phase of the battery to be charged based on the charging consumption information at each time comprises:
determining at least one charging time period with lowest total consumption according to the charging consumption information at each moment;
determining starting time information of at least one sub-stage in the second stage according to the starting time information of the charging period; and determining a charging rate according to the charging amount of the second stage and the charging duration of the at least one charging period;
correspondingly, the controlling the charging of the second stage to the battery to be charged based on the start time information of the second stage includes:
and controlling the battery to be charged in a second stage based on the starting time information of the at least one sub-stage and the charging rate.
8. The method as claimed in claim 1, wherein the determining the start time information of the second stage of the battery to be charged based on the charging demand of the charging station and/or the charging consumption information at each time comprises:
determining a power swapping peak period in the power swapping requirement of the power swapping station;
and in a chargeable period between the current moment and the battery swapping peak period, determining at least one charging period with the lowest total consumption according to the charging consumption information at each moment, and determining the starting time information of the charging period to the starting time information of at least one sub-stage in the second stage.
9. A battery charging apparatus, comprising:
the first-stage charging control module is used for controlling the first-stage charging of the battery to be charged;
a first-stage charging ending module, configured to end the first-stage charging when the electric quantity of the battery to be charged meets the condition of electric quantity storage;
and the second-stage charging control module is used for determining the starting time information of the second stage of the battery to be charged based on the battery replacement requirements of the battery replacement station and/or the charging consumption information at each moment, and controlling the second-stage charging of the battery to be charged based on the starting time information of the second stage.
10. An electronic device, characterized in that the electronic device comprises:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the battery charging method of any one of claims 1-8.
11. A computer-readable storage medium having stored thereon computer instructions for causing a processor, when executed, to implement the battery charging method of any one of claims 1-8.
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| CN115995869A (en) * | 2023-03-16 | 2023-04-21 | 深圳鼎匠科技有限公司 | Intelligent charging control method and device for automobile battery |
| CN115995869B (en) * | 2023-03-16 | 2023-08-04 | 深圳鼎匠科技有限公司 | Intelligent charging control method and device for automobile battery |
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