CN116505624A - Battery charging control method, device, control equipment and storage medium - Google Patents
Battery charging control method, device, control equipment and storage medium Download PDFInfo
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- CN116505624A CN116505624A CN202310763469.XA CN202310763469A CN116505624A CN 116505624 A CN116505624 A CN 116505624A CN 202310763469 A CN202310763469 A CN 202310763469A CN 116505624 A CN116505624 A CN 116505624A
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- 238000003860 storage Methods 0.000 title claims abstract description 12
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- 238000004904 shortening Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
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- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application discloses a battery charging control method, a device, control equipment and a storage medium. Wherein the method comprises the following steps: acquiring use information of a battery; determining whether the battery meets the starting condition of the optimized quick charge strategy according to the use information; and controlling the battery to charge based on the optimized fast charge strategy under the condition that the use information meets the starting condition. Through the scheme of the application, the charging strategy can be flexibly switched, and the service life of the battery is prolonged while the quick charging competitiveness is not reduced.
Description
Technical Field
The application belongs to the technical field of batteries, and particularly relates to a battery charging control method, a battery charging control device, control equipment and a computer readable storage medium.
Background
Along with the wide popularization of various electric equipment, people are increasingly pressing to improve the quick charge requirement of batteries. In the current fast charging strategy, the charging rate is generally set in stages, and the charging rate in a low state of charge (SOC) is set to be higher, which causes the expansion force of the battery in this stage to increase too fast, affects the reflux rate of the electrolyte of the battery, and further causes insufficient infiltration of the electrolyte to jump to fail, thereby reducing the service life of the battery.
Based on this, some optimization means for the fast charge strategy have been proposed by some battery manufacturers. These optimized fast charge strategies typically delay battery life to some extent at the expense of charge time. However, the current electric equipment usually continuously charges with the quick charging strategy after the quick charging strategy is selected; that is, the electric equipment is charged by a conventional fast charging strategy for a long time or an optimized fast charging strategy for a long time, so that the current charge control of the battery lacks flexibility, and the electric equipment is difficult to flexibly realize the balance between the charging efficiency and the service life of the battery.
Disclosure of Invention
The application provides a battery charging control method, a battery charging control device, control equipment and a computer readable storage medium, which can flexibly switch charging strategies and delay the service life of a battery without reducing the quick charging competitiveness.
In a first aspect, the present application provides a battery charge control method, including:
acquiring use information of a battery;
determining whether the battery meets the starting condition of the optimized quick charge strategy according to the use information;
and under the condition that the use information meets the starting condition, controlling the battery to charge based on the optimized fast charge strategy.
In some embodiments, the usage information includes: a state of health; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether the health status is less than a preset health status threshold;
and under the condition that the health state is smaller than the health state threshold value, determining that the battery meets the starting condition.
In some embodiments, the usage information includes: the number of battery cycles; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether the cycle number of the battery is greater than a preset number threshold;
and under the condition that the cycle times of the battery are larger than the time threshold, determining that the battery meets the starting condition.
In some embodiments, the usage information includes: a battery application scenario; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether a battery application scene is changed;
and under the condition that the application scene of the battery is changed, determining that the battery meets the starting condition.
In some embodiments, the usage information includes: a charging mode; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
Determining whether the charging mode is a designated charging mode, wherein the designated charging mode aims at shortening the charging time;
in the case where the charging mode is not the specified charging mode, it is determined that the battery satisfies the start condition.
In some embodiments, obtaining usage information for a battery includes:
and acquiring the charging mode of the battery through the button state of a preset mode selection button.
In some embodiments, the usage information includes: historical usage periods; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
predicting a target use period according to the current time and the historical use period;
calculating a time difference value between the current time and the target using time period;
and under the condition that the time difference value is larger than a preset time difference value threshold value, determining that the battery meets the starting condition.
In a second aspect, the present application provides a battery charge control device, including:
the acquisition module is used for acquiring the use information of the battery;
the determining module is used for determining whether the battery meets the starting condition of the optimized quick charge strategy according to the use information;
and the control module is used for controlling the battery to charge based on the optimized quick charge strategy under the condition that the use information meets the starting condition.
In a third aspect, the present application provides a control device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method of the first aspect when executing the computer program.
In a fourth aspect, the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, performs the steps of the method of the first aspect described above.
Compared with the prior art, the beneficial effects that this application exists are: the present application does not charge the battery in a single charging mode. Specifically, the control device may first obtain the usage information of the battery, and then determine, according to the usage information, whether the battery meets the starting condition of the optimized fast-charge policy. Under the condition that the usage information meets the starting condition of the optimized fast charging strategy, the control equipment can control the battery to charge based on the optimized fast charging strategy. Therefore, the control equipment can flexibly switch the charging strategy, and delay the service life of the battery while not reducing the quick charging competitiveness.
It will be appreciated that the advantages of the second to fourth aspects may be found in the relevant description of the first aspect and are not repeated here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic implementation flow chart of a battery charging control method according to an embodiment of the present application;
fig. 2 is an effect schematic diagram of a battery charge control method according to an embodiment of the present application;
fig. 3 is a block diagram of a battery charge control device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a control device according to an embodiment of the present application.
Detailed Description
Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two) unless specifically defined otherwise.
At present, the more widely the battery is applied, the battery can be applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, electric vehicles such as electric bicycles, electric motorcycles and electric automobiles, and even the fields such as military equipment and aerospace. With the continuous expansion of the battery application field, the market demand thereof is also continuously expanding.
In order to ensure energy supply to the battery, a fast charging technology has been paid attention to. The traditional fast charge strategy is typically: different charging multiplying powers are respectively set according to different SOC stages of the battery; generally, the charge rate in the low SOC stage will be set higher, and the charge rate in the high SOC stage will be set lower. However, when charging is performed at a higher charging rate in a low SOC stage, the expansion force of the battery increases too fast, which affects the reflux rate of the electrolyte of the battery, and further causes insufficient electrolyte infiltration and failure of water jump, thereby reducing the service life of the battery.
Currently, battery manufacturers have proposed some optimization means for the fast charge strategy. These optimized fast charge strategies typically delay battery life to some extent at the expense of charge time; that is, these optimized fast charge strategies perform poorly over charge time (equivalent to charge efficiency) but perform better over battery life than conventional fast charge strategies. However, the current electric equipment usually continuously charges with the quick charging strategy after the quick charging strategy is selected; that is, the electric equipment is charged by a conventional fast charging strategy for a long time or an optimized fast charging strategy for a long time, so that the current charge control of the battery lacks flexibility, and the electric equipment is difficult to flexibly realize the balance between the charging efficiency and the service life of the battery.
Based on the above consideration, the embodiment of the application provides a battery charging control method, in which the electric equipment does not keep charging with a fixed fast charging strategy for a long time, but obtains the use information of the battery, then determines whether the battery meets the starting condition of the optimized fast charging strategy according to the use information, and controls the battery to charge based on the optimized fast charging strategy under the condition that the use information meets the starting condition, so that the charging strategy is flexibly switched, and the service life of the battery is prolonged while the fast charging competitiveness is not reduced. In order to illustrate the technical solutions proposed in the embodiments of the present application, the following description is made by specific embodiments.
A battery charge control method provided in the embodiments of the present application is described below. The battery charge control method is applicable to a control apparatus. For example only, the control device may include, but is not limited to: the independent equipment is integrated in the electric equipment where the battery is located or is connected with the electric equipment in a communication way. Referring to fig. 1, the battery charging control method in the embodiment of the present application includes:
step 101, obtaining the use information of the battery.
The control device may continuously monitor the battery during use of the battery, thereby obtaining information on the use of the battery. For example only, the usage information may include, but is not limited to, one or more of the following: state of health (SOH), battery cycle number, battery application scenario, charge mode, and historical usage period, etc.
Wherein, the health state refers to: under standard conditions, the ratio of the energy discharged from the battery in a full state to the cut-off voltage at a certain multiplying power to the corresponding nominal rated energy; the number of battery cycles refers to: the number of times the battery completes a complete charging cycle; the battery application scenario refers to: the application field of the electric equipment where the battery is positioned; the charging mode refers to: modes set by battery manufacturers and/or users based on different charging purposes; the historical usage period refers to: the period of time in which the battery obtained by monitoring and analyzing the battery in the latest specified period of time (for example, in one week) is used in the specified period of time is equal to the period of time in which the electric device is used in the specified period of time in high frequency, which is specifically greater than the preset frequency threshold.
Step 102, determining whether the battery meets the starting condition of the optimized fast charge strategy according to the use information.
The optimized fast-charging strategy refers to the fast-charging strategy obtained by optimizing the conventional fast-charging strategy as described above. Compared with the conventional quick charging strategy, the optimized quick charging strategy has the following characteristics: under the condition that the charge electric quantity is the same, the charge time of the optimized quick charge strategy is longer than that of the conventional quick charge strategy, namely the charge efficiency of the optimized quick charge strategy is slightly reduced; and the influence of the optimized fast charge strategy on the battery performance is smaller than that of the conventional fast charge strategy, namely the optimized fast charge strategy can help to delay the service life of the battery. It should be noted that the optimized fast charging strategy is still superior in charging efficiency compared to the normal charging strategy (i.e., the non-fast charging strategy).
Based on the above characteristics of the optimized fast charge strategy, the control device can determine whether the battery meets the starting condition of the optimized fast charge strategy according to the current usage information of the obtained battery. In the embodiment of the application, in order to keep the electric equipment to have certain competitiveness in the aspect of quick charging, the starting condition of the optimized quick charging strategy can be set according to the demand degree and the urgent degree of the user for quick charging; alternatively, the starting conditions of the optimized fast-charge strategy may be set from the viewpoint of delaying the battery life, so that the battery can maintain its performance as long as possible.
In some embodiments, considering that the conventional fast charge strategy affects the battery life mainly due to a higher charge rate in a low SOC stage, the optimized fast charge strategy may be optimized mainly for the low SOC stage, and the charge rate in the low SOC stage may be set to a lower value. For example only, the optimized fast charge strategy may be: and in a charging stage that the charge state of the battery is smaller than a preset charge state threshold value, charging the battery at a charging rate smaller than the preset rate threshold value.
And step 103, controlling the battery to charge based on the optimized fast charge strategy under the condition that the use information meets the starting condition.
The control device has prestored a conventional fast charge strategy and an optimized fast charge strategy. Under the condition that the use information of the battery meets the starting condition of the optimized quick charge strategy, the control equipment can control the battery to charge based on the optimized quick charge strategy as long as the battery is connected with a power supply and enters a charging state. Compared with the common charging strategy, the optimized fast charging strategy can rapidly improve the SOC of the battery; compared with the conventional fast charge strategy, the optimized fast charge strategy does not have great influence on the battery performance, and the service life of the battery can be prolonged. Of course, in the case that the usage information does not satisfy the starting condition, the control device may still control the battery charging based on the conventional fast charging policy, which will not be described herein.
In some embodiments, where the usage information includes a health status, step 102 may specifically include:
a1, determining whether the health state is smaller than a preset health state threshold value.
The battery is in too low a state of health, i.e. the performance of the battery has degraded to some extent, and there is a risk of ending the life of the battery. To avoid battery performance jump, the control device may preset a state of health threshold. The control device may compare the current resulting state of health of the battery to the state of health threshold to confirm whether the state of health of the battery has fallen below the state of health threshold.
For example only, the state of health threshold may be set to 90% or other values, specifically may be user-defined, or may be set by the battery manufacturer based on the performance of the battery.
A2, under the condition that the health state is smaller than the health state threshold value, determining that the battery meets the starting condition.
And when the state of health of the battery is smaller than the state of health threshold, indicating that the battery has been worn to a certain extent. In this case, the battery can be confirmed to meet the starting conditions of the optimized fast-charge strategy in consideration of the service life and performance of the battery; that is, the control device may currently load an optimized fast charge strategy. Since the state of health of the battery is irreversible, the optimized fast charge strategy can be used as a control basis as long as the battery is charged later.
In some embodiments, where the usage information includes a number of battery cycles, step 102 may specifically include:
b1, determining whether the cycle number of the battery is larger than a preset frequency threshold.
The performance of a battery generally decreases as the number of battery cycles increases. Based on this, an excessive number of battery cycles generally results in a significant decrease in the performance of the battery. To avoid battery performance jump, the control device may preset a battery cycle number threshold. The control device may compare the current number of battery cycles to the number of times threshold to confirm whether the number of battery cycles exceeds the number of times threshold.
For example only, the number of times threshold may be determined according to a warranty agreement signed by the user and the manufacturer of the powered device, e.g., if there is a limit to the quality of the battery after more than N times of fast charging is specified in the warranty agreement, the number of times threshold may be set to N. Of course, in the case of not signing a warranty agreement, the threshold number of times may be customized by the user, and may also be set by the battery manufacturer according to the performance of the battery, which will not be described herein.
And B2, under the condition that the cycle times of the battery are larger than a time threshold, determining that the battery meets the starting condition.
When the number of battery cycles is greater than the number threshold, the battery is considered to have been worn to some extent. In this case, the battery can be confirmed to meet the starting conditions of the optimized fast-charge strategy in consideration of the service life and performance of the battery; that is, the control device may currently load an optimized fast charge strategy. Because the cycle times of the battery are irreversible, the optimized fast charge strategy can be used as a control basis as long as the battery is charged afterwards.
In some embodiments, where the usage information includes a battery application scenario, step 102 may specifically include:
and C1, determining whether the battery application scene is changed.
Currently, in order to maximize the use value of the battery, recovery and cascade use of the battery have been proposed. For example, after the battery is used on the electric automobile for a certain time, the performance of the battery does not meet the use requirement of the electric automobile, the battery can be recovered, and the battery is put on an electric bicycle for use after being modified; after the battery is used on the electric bicycle for a certain time, the performance of the battery does not meet the use requirement of the electric bicycle, and the battery can be recovered and put on an energy storage system for use after being modified. Therefore, in general, the application scene of the battery remains unchanged for a long time; however, when the battery is recycled, the application scene of the battery is changed correspondingly. Based on the above, the control device can determine whether the battery application scene is changed or not through monitoring the battery application scene; and when the application scene of the battery is changed, judging that the battery is recycled, namely the battery belongs to the recycled battery.
And C2, under the condition that the cycle number of the battery is larger than the frequency threshold value, determining that the battery meets the starting condition.
It can be understood that the precondition for recycling the battery is that the performance of the battery does not meet the requirements of the original application scenario, and based on this, the battery loss is already larger for the recycled battery, and the performance is actually at a lower level. In this case, the recovered and reused battery can be considered to meet the starting conditions of the optimized fast charge strategy, in view of battery life and performance; that is, the control device may currently load an optimized fast charge strategy. The battery recycling state is irreversible, so that the optimized quick charge strategy can be used as a control basis as long as the battery is charged later.
In some embodiments, where the usage information includes a charging mode, step 102 may specifically include:
d1, determining whether the charging mode is a specified charging mode.
The user can input the desired charging mode to the electric device according to the charging purpose. In the scenario that the electric equipment is an electric automobile, the electric automobile can be preset with a mode selection button. The mode selection button may be a physical button newly added in the electric car or a virtual button displayed on the vehicle-mounted terminal of the electric car, and different button states of the mode selection button correspond to different charging modes. In the embodiment of the present application, a charging mode for the purpose of shortening the charging period is referred to as a specified charging mode.
D2, determining that the battery meets the starting condition when the charging mode is not the designated charging mode.
It can be understood that, in the case that the charging mode of the battery is the designated charging mode, it is known that the current user expects to be able to complete charging quickly; accordingly, in the case that the charging mode of the battery is not the designated charging mode, it is known that the current user has no special requirement on the charging speed, and it can accept charging for a longer time. Based on the above, in consideration of the degree of the user's demand and the urgent degree of the quick charge, when the charging mode is not the designated charging mode, it may be determined that the battery satisfies the starting condition of the optimized quick charge policy, and the present charging may be performed based on the optimized quick charge policy. Since the charging mode of the battery is modifiable, it is possible to determine which charging strategy should be used based on the latest charging mode of the battery before each charging.
In some embodiments, where the usage information includes historical usage periods, step 102 may specifically include:
and E1, predicting a target use period according to the current time and the historical use period.
It can be understood that the historical use period actually expresses the rule of using the electric equipment by the user; that is, it is possible for the user to reuse the powered device during a similar period of time as the historical usage period. Based on this, the control device may determine, according to the current time and the historical usage period, a next possible usage period closest to the current time, where the usage period is the target usage period.
And E2, calculating a time difference value between the current time and the target use period.
The target usage period includes a start time and an end time. Considering that the electric equipment is likely to be continuously used in the target use period, in the embodiment of the application, the time difference between the current time and the target use period may specifically be: time difference between the current time and the start time of the target usage period.
And E3, under the condition that the time difference value is larger than a preset time difference value threshold value, determining that the battery meets the starting condition.
The foregoing has described that the charge time required for the optimized fast charge strategy is longer than that of the conventional fast charge strategy. When the calculated time difference is greater than the preset time difference threshold, the current charging time is still sufficient, and in this case, the charging time of the optimized fast charging strategy is acceptable. On the contrary, when the calculated time difference is smaller than or equal to the time difference threshold, the current charging time is relatively tense, and in this case, the control device may still adopt a conventional fast charging strategy to realize fast charging in consideration of the user's requirement level and urgent level of fast charging.
For example only, in the case where the powered device is an electric automobile, the time difference threshold may be set to one hour. The control device obtains the following historical use time periods of high-frequency occurrence through analysis of the use time periods of the electric automobile by a user in one week: eight to nine points per day in the morning and five to six points per day in the afternoon. Assuming that the current time is three and a half in afternoon, it may be considered that the consumer is likely to be used next time by the user from five to six in afternoon, and the time difference may be calculated to be one and a half hours. Because the time difference is greater than the time difference threshold, the battery still has sufficient charge time even if the optimized fast charge strategy is enabled.
Referring to fig. 2, fig. 2 shows an effect of the battery charging control method according to the embodiment of the present application in the case where the usage information includes the number of battery cycles. In fig. 2, a conventional fast-charging strategy (corresponding to the curve before the asterisk) is adopted in the early stage; the later stages are respectively: continuing to employ the conventional fast charge strategy (corresponding to the dashed line after the asterisk) and in turn employing the optimized curve of the fast charge strategy (corresponding to the solid line after the asterisk). Therefore, the embodiment of the application can adopt the optimized fast charge strategy after the battery is used for a period of time, and compared with the conventional fast charge strategy, the decay speed of the health state of the battery is relieved, so that the service life of the battery is prolonged.
In some embodiments, the optimized fast charge strategy may be embodied as: in a first stage of charging, charging is performed by using a first charging rate; in a second stage of charging, charging is performed by using a second charging rate; the first charging rate is a value within a first charging rate range, the second charging rate is a value within a second charging rate range, and the first charging rate is smaller than the initial second charging rate.
Specifically, the first phase of charging may refer to a phase in which the battery is located in the first SOC value interval, and the second phase of charging may refer to a phase in which the battery is located in the second SOC value interval. Wherein, the first SOC value interval can be expressed as a continuous interval of [ A, B ], the value of A is not less than 0, and the value of B is not more than 1; the second SOC value interval may be represented as a continuous interval of [ B, C ], B being not less than a, and C being not less than B. In some examples, the range of values for B may be [0.20,0.35], and the range of values for C may be [0.45,0.6]. Of course, in the case where the above-described values of B and C are satisfied, B and C may be valued within other reasonable values.
Specifically, the first phase of charging may also refer to a phase in which the battery is located in the first charging time interval, and the second phase of charging may also refer to a phase in which the battery is located in the second charging time interval. The first charging time interval may be represented as a continuous interval of [ a, b ] minutes, the value of a is not less than 0, and the value of b is not less than 8, and the second charging time interval may be represented as a continuous interval of [ b, c ] minutes, b is not less than a, and c is not less than b. In some examples, the range of values for b may be [5,60], and the range of values for c may be [10,90]. Of course, in the case where the above-described values of b and c are satisfied, b and c may be valued within other reasonable values.
Specifically, the first charging rate at the first stage of charging takes a constant value; alternatively, the rising trend may be represented by a stepwise rising or a smooth rising. Similarly, the second charging rate of the second phase of charging is at a constant value; alternatively, the descending trend may be represented by a stepwise or smooth descent. In some examples, the range of values for the first charge rate may be [0.1,1.5], and the range of values for the second charge rate may be [1,3]. Of course, in the case of satisfying the above-described values of the first charging rate and the second charging rate, other reasonable values of the first charging rate and the second charging rate may be adopted.
As can be seen from the above, in the embodiment of the present application, the battery is not charged in a single charging manner. Specifically, the control device may first obtain the usage information of the battery, and then determine, according to the usage information, whether the battery meets the starting condition of the optimized fast-charge policy. And under the condition that the usage information meets the starting condition of the optimized quick charge strategy, the control equipment controls the battery to charge based on the optimized quick charge strategy. Therefore, the control equipment can flexibly switch the charging strategy, and delay the service life of the battery while not reducing the quick charging competitiveness.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
Corresponding to the battery charging control method provided above, the embodiment of the application also provides a battery charging control device. Referring to fig. 3, a battery charge control device 3 in the embodiment of the present application includes:
an acquiring module 301, configured to acquire usage information of a battery;
a determining module 302, configured to determine, according to the usage information, whether the battery meets a starting condition of the optimized fast charge policy;
and the control module 303 is configured to control battery charging based on the optimized fast charge policy in a case where the usage information satisfies the start condition.
In some embodiments, the usage information includes: a state of health; the determining module 302 includes:
the first determining unit is used for determining whether the health state is smaller than a preset health state threshold value;
and the second determining unit is used for determining that the battery meets the starting condition under the condition that the health state is smaller than the health state threshold value.
In some embodiments, the usage information includes: the number of battery cycles; the determining module 302 includes:
A third determining unit for determining whether the battery cycle number is greater than a preset number threshold;
and a fourth determining unit for determining that the battery satisfies the start condition in the case where the number of battery cycles is greater than the number threshold.
In some embodiments, the usage information includes: a battery application scenario; the determining module 302 includes:
a fifth determining unit, configured to determine whether a battery application scenario is changed;
and the sixth determining unit is used for determining that the battery meets the starting condition under the condition that the battery application scene is changed.
In some embodiments, the usage information includes: a charging mode; the determining module 302 includes:
a seventh determining unit configured to determine whether the charging mode is a specified charging mode, the specified charging mode being aimed at shortening a charging period;
and an eighth determination unit configured to determine that the battery satisfies the start condition in a case where the charging mode is not the specified charging mode.
In some embodiments, the obtaining module 301 is specifically configured to determine the charging mode of the battery through a preset button state of the mode selection button.
In some embodiments, the usage information includes: historical usage periods; the determining module 302 includes:
The prediction unit is used for predicting a target use period according to the current time and the historical use period;
the calculating unit is used for calculating the time difference value between the current time and the target using time period;
and a ninth determining unit for determining that the battery satisfies the start condition in the case where the time difference is greater than a preset time difference threshold.
As can be seen from the above, in the embodiment of the present application, the battery is not charged in a single charging manner. Specifically, the battery charging control device may first obtain the usage information of the battery, and then determine, according to the usage information, whether the battery meets the starting condition of the optimized fast-charging strategy. Under the condition that the usage information meets the starting condition of the optimized fast charge strategy, the battery charge control device controls the battery charge based on the optimized fast charge strategy. Therefore, the battery charging control device can flexibly switch the charging strategy, and delay the service life of the battery while not reducing the quick charging competitiveness.
Corresponding to the battery charging control method provided above, the embodiment of the application also provides a control device. Referring to fig. 4, the control apparatus 4 in the embodiment of the present application includes: a memory 401, one or more processors 402 (only one shown in fig. 4) and a computer program stored on the memory 401 and executable on the processors. Wherein: the memory 401 is used for storing software programs and modules, and the processor 402 executes various functional applications and data processing by running the software programs and units stored in the memory 401 to obtain resources corresponding to the preset events. Specifically, the processor 402 realizes the following steps by running the above-described computer program stored in the memory 401:
Acquiring use information of a battery;
determining whether the battery meets the starting condition of the optimized quick charge strategy according to the use information;
and under the condition that the use information meets the starting condition, controlling the battery to charge based on the optimized fast charge strategy.
Assuming that the above is the first possible embodiment, in a second possible embodiment provided on the basis of the first possible embodiment, the usage information includes: a state of health; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether the health status is less than a preset health status threshold;
and under the condition that the health state is smaller than the health state threshold value, determining that the battery meets the starting condition.
In a third possible embodiment provided on the basis of the first possible embodiment described above, the usage information includes: the number of battery cycles; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether the cycle number of the battery is greater than a preset number threshold;
and under the condition that the cycle times of the battery are larger than the time threshold, determining that the battery meets the starting condition.
In a fourth possible embodiment provided on the basis of the first possible embodiment described above, the usage information includes: a battery application scenario; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether a battery application scene is changed;
and under the condition that the application scene of the battery is changed, determining that the battery meets the starting condition.
In a fifth possible embodiment provided on the basis of the first possible embodiment described above, the usage information includes: a charging mode; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
determining whether the charging mode is a designated charging mode, wherein the designated charging mode aims at shortening the charging time;
in the case where the charging mode is not the specified charging mode, it is determined that the battery satisfies the start condition.
In a sixth possible embodiment provided by the above fifth possible embodiment as a basis, acquiring the usage information of the battery includes:
and acquiring the charging mode of the battery through the button state of a preset mode selection button.
In a seventh possible embodiment provided on the basis of the first possible embodiment described above, the usage information includes: historical usage periods; according to the usage information, determining whether the battery meets the starting condition of the optimized fast charge strategy includes:
Predicting a target use period according to the current time and the historical use period;
calculating a time difference value between the current time and the target using time period;
and under the condition that the time difference value is larger than a preset time difference value threshold value, determining that the battery meets the starting condition.
It should be appreciated that in embodiments of the present application, the processor 402 may be a central processing unit (Central Processing Unit, CPU), which may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSPs), application specific integrated circuits (Application Specific Integrated Circuit, ASICs), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Memory 401 may include read-only memory and random access memory, and provides instructions and data to processor 402. Some or all of memory 401 may also include non-volatile random access memory. For example, the memory 401 may also store information of a device type.
As can be seen from the above, in the embodiment of the present application, the battery is not charged in a single charging manner. Specifically, the control device may first obtain the usage information of the battery, and then determine, according to the usage information, whether the battery meets the starting condition of the optimized fast-charge policy. And under the condition that the usage information meets the starting condition of the optimized quick charge strategy, the control equipment controls the battery to charge based on the optimized quick charge strategy. Therefore, the control equipment can flexibly switch the charging strategy, and delay the service life of the battery while not reducing the quick charging competitiveness.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of external device software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the system embodiments described above are merely illustrative, e.g., the division of modules or units described above is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application implements all or part of the flow of the method of the above-described embodiments, or may be implemented by a computer program to instruct associated hardware, where the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. The computer program comprises computer program code, and the computer program code can be in a source code form, an object code form, an executable file or some intermediate form and the like. The above computer readable storage medium may include: any entity or device capable of carrying the computer program code described above, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer readable Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier wave signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable storage medium described above may be appropriately increased or decreased according to the requirements of the jurisdiction's legislation and the patent practice, for example, in some jurisdictions, the computer readable storage medium does not include electrical carrier signals and telecommunication signals according to the legislation and the patent practice.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A battery charge control method, characterized by comprising:
acquiring use information of a battery;
determining whether the battery meets the starting condition of the optimized quick charge strategy according to the use information;
and controlling the battery to charge based on the optimized fast charge strategy under the condition that the use information meets the starting condition.
2. The battery charge control method according to claim 1, wherein the usage information includes: a state of health; and determining whether the battery meets the starting condition of the optimized fast charge strategy according to the use information, including:
Determining whether the health status is less than a preset health status threshold;
and determining that the battery meets the starting condition under the condition that the health state is smaller than the health state threshold value.
3. The battery charge control method according to claim 1, wherein the usage information includes: the number of battery cycles; and determining whether the battery meets the starting condition of the optimized fast charge strategy according to the use information, including:
determining whether the battery cycle number is greater than a preset number threshold;
and under the condition that the battery cycle number is larger than the number threshold, determining that the battery meets the starting condition.
4. The battery charge control method according to claim 1, wherein the usage information includes: a battery application scenario; and determining whether the battery meets the starting condition of the optimized fast charge strategy according to the use information, including:
determining whether the battery application scene is changed;
and under the condition that the battery application scene is changed, determining that the battery meets the starting condition.
5. The battery charge control method according to claim 1, wherein the usage information includes: a charging mode; and determining whether the battery meets the starting condition of the optimized fast charge strategy according to the use information, including:
Determining whether the charging mode is a designated charging mode, wherein the designated charging mode aims at shortening the charging time length;
and determining that the battery meets the starting condition when the charging mode is not the designated charging mode.
6. The battery charge control method according to claim 5, wherein the acquiring the usage information of the battery includes:
and acquiring the charging mode of the battery through the button state of a preset mode selection button.
7. The battery charge control method according to claim 1, wherein the usage information includes: historical usage periods; and determining whether the battery meets the starting condition of the optimized fast charge strategy according to the use information, including:
predicting a target use period according to the current time and the historical use period;
calculating a time difference between the current time and the target usage period;
and under the condition that the time difference value is larger than a preset time difference value threshold value, determining that the battery meets the starting condition.
8. A battery charge control device, characterized by comprising:
the acquisition module is used for acquiring the use information of the battery;
The determining module is used for determining whether the battery meets the starting condition of the optimized quick charge strategy according to the use information;
and the control module is used for controlling the battery to charge based on the optimized fast charge strategy under the condition that the use information meets the starting condition.
9. A control device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any one of claims 1 to 7 when executing the computer program.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 1 to 7.
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