CN116890667A

CN116890667A - Battery anti-floating charge control method and device

Info

Publication number: CN116890667A
Application number: CN202310936413.XA
Authority: CN
Inventors: 刘卫明
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2023-10-17

Abstract

The invention discloses a battery anti-floating charge control method and device, wherein the method comprises the following steps: when the battery meets the full charge condition, collecting real-time electric quantity information of the battery; judging whether the battery meets an anti-floating charging strategy triggering condition according to the real-time electric quantity information, wherein the anti-floating charging strategy triggering condition comprises a necessary triggering sub-condition which is used for indicating that the battery is connected with a charging device; and when the judgment result is yes, determining a target anti-floating charging strategy of the battery according to the attribute information of the battery, and executing a target operation corresponding to the target anti-floating charging strategy on the battery, wherein the target operation is used for limiting the charging process of the battery. Therefore, after the battery meets the full charge condition and meets the anti-floating charge strategy triggering condition, the corresponding target anti-floating charge strategy is determined and executed according to the attribute information of the battery, the determination accuracy of the target anti-floating charge strategy is improved, the occurrence of the floating charge phenomenon of the battery is reduced, and the problem that the service life of the battery is reduced due to floating charge of the battery is solved.

Description

Battery anti-floating charge control method and device

Technical Field

The invention relates to the technical field of battery control, in particular to a battery anti-floating charge control method and device.

Background

Based on the advantages of recycling of the battery, the use scene of the battery is also popularized to a plurality of fields, such as a power battery applied to a new energy vehicle, and a key driving force is provided for people to realize cleaner and low-carbon travel.

However, whether it is a power battery or a battery applied to other fields, in the battery charging process, there is a general battery floating charging phenomenon, that is, when the battery is not fully charged, if the battery is connected to the charging device, the charging process will be entered, and similarly, after the battery is fully charged, the battery will enter the power consumption link, and at this time, if the battery after power consumption is connected to the charging device, the charging process will also be entered. However, it is found that if the battery is charged fully, the battery consumes less power and repeatedly enters the charging process, the battery is damaged under high current, and the service life of the battery is reduced.

Therefore, how to reduce the occurrence of battery float-charging phenomenon is important to solve the problem of the decrease of the service life of the battery caused by the battery float-charging.

Disclosure of Invention

The invention aims to solve the technical problem of providing a battery anti-floating charge control method and device, which can reduce the occurrence of a battery floating charge phenomenon so as to solve the problem of the reduction of the service life of a battery caused by the battery floating charge.

In order to solve the technical problem, a first aspect of the present invention discloses a battery anti-floating charge control method, which comprises:

when the battery meets the full charge condition, acquiring real-time electric quantity information of the battery;

judging whether the battery meets an anti-floating charge strategy triggering condition according to the real-time electric quantity information, wherein the anti-floating charge strategy triggering condition comprises a necessary triggering sub-condition, and the necessary triggering sub-condition is used for indicating that the battery is connected with a charging device;

when the battery meets the trigger condition of the anti-floating charging strategy, determining a target anti-floating charging strategy of the battery according to the attribute information of the battery, and executing target operation corresponding to the target anti-floating charging strategy on the battery, wherein the target operation is used for limiting the charging process of the battery.

As an optional implementation manner, in the first aspect of the present invention, the attribute information of the battery includes preset service life information, the target anti-floating charging policy of the battery includes a first anti-floating charging policy or a second anti-floating charging policy, and the determining, according to the attribute information of the battery, the target anti-floating charging policy of the battery includes:

Judging whether a target value corresponding to the preset service life information is larger than or equal to a preset service life threshold value, and determining the first anti-floating charge strategy as a target anti-floating charge strategy of the battery when the target value is larger than or equal to the preset service threshold value; when the target value is smaller than the preset use threshold value, determining the second anti-floating charge strategy as the target anti-floating charge strategy of the battery;

the target operation corresponding to the first anti-floating charging strategy is used for blocking the charging process of the battery, and the target operation corresponding to the second anti-floating charging strategy is used for attenuating the charging control parameters of the battery.

As an optional implementation manner, in the first aspect of the present invention, before the performing, on the battery, a target operation corresponding to the target anti-floating charging policy, the method further includes:

generating target control parameters according to the target anti-floating charging strategy and the determined charging mode of the battery, wherein the charging mode comprises one of a plugging mode and a magnetic attraction mode;

and executing the target operation corresponding to the target anti-floating charging strategy on the battery, wherein the target operation comprises the following steps:

And executing the target operation corresponding to the target control parameter on the battery.

As an optional implementation manner, in the first aspect of the present invention, when the target anti-floating charging policy is the second anti-floating charging policy, after the performing, on the battery, the target operation corresponding to the target control parameter, the method further includes:

acquiring charging information of the battery under the current electric quantity, wherein the charging information comprises current charging information and historical charging information, the current charging information comprises at least one of current charging rate, current charging current change rate, current charging temperature change rate and current charging interaction information, and the historical charging information corresponds to the current charging information;

judging whether the current charging information is matched with the historical charging information, and when judging that the current charging information is not matched with the historical charging information, analyzing a target influence factor influencing the fact that the current charging information is not matched with the historical charging information according to a preset analysis model, and executing target optimization operation corresponding to the target influence factor according to the target influence factor.

As an optional implementation manner, in the first aspect of the present invention, the target influence factor includes at least one of a first influence factor corresponding to the battery, a second influence factor corresponding to the battery connection charging device, and an association influence factor between the battery and the charging device;

and executing a target optimization operation corresponding to the target influence factor according to the target influence factor, wherein the target optimization operation comprises the following steps:

when the target influence factor comprises the first influence factor, judging whether the battery meets an abnormal charging condition according to the first influence factor, when the battery meets the abnormal charging condition, determining abnormal degree information of the battery, generating fluid control parameters of the battery according to the abnormal degree information, and executing target optimization operation on the battery according to the fluid control parameters, wherein the fluid control parameters comprise gas-fluid control parameters or liquid-fluid control parameters;

when the target influence factor comprises the second influence factor, controlling an output device corresponding to the charging device to output prompt information corresponding to the second influence factor according to the second influence factor so as to prompt the second influence factor to a use object corresponding to the battery;

And when the target influence factor comprises the association influence factor, controlling the battery and the charging device to execute collaborative optimization operation according to the association influence factor.

In an optional implementation manner, in a first aspect of the present invention, the generating, according to the target anti-floating charging policy and the determined charging manner of the battery, a target control parameter includes:

when the first anti-floating charging strategy is determined to be the target anti-floating charging strategy, determining all associated circuits between the battery and a charging device connected with the battery according to the charging mode, determining a target associated circuit in all the associated circuits, and generating a first control parameter according to a blocking control mode of the target associated circuit;

when the second anti-floating charging strategy is determined to be the target anti-floating charging strategy, determining a target attenuation coefficient of the battery according to the acquired real-time temperature information and the real-time electric quantity information of the battery, and generating a second control parameter according to the target attenuation coefficient and the charging mode;

and executing the target operation corresponding to the target control parameter on the battery, wherein the target operation comprises the following steps:

According to the first control parameter, controlling the target association circuit to block the charging process; or,

and according to the second control parameter, controlling a target device to execute a damping operation matched with the second control parameter, wherein the target device comprises the battery or the charging device.

As an optional implementation manner, in the first aspect of the present invention, before the battery meets the full charge condition, the method further includes:

for each single cell in the battery, acquiring the full charge of the single cell, and determining the charge priority score of the single cell according to the full charge of the single cell;

determining a charging control parameter of the battery according to the charging priority scores of all the single battery cells;

and controlling a charging turn-off circuit in the battery according to the charging control parameters so as to execute charging operation on each single cell of the battery until the battery meets the full charge condition.

As an optional implementation manner, in the first aspect of the present invention, when the target anti-floating charging policy is the first anti-floating charging policy, the performing, on the battery, a target operation corresponding to the target control parameter includes:

Determining first target information as full charge identification information of the battery so as to block the charging process of the battery;

and after the determining the first target information as the full charge identification information of the battery to block the charging process of the battery, the method further comprises:

acquiring the latest real-time electric quantity information of the battery;

judging whether the latest real-time electric quantity information is smaller than a target electric quantity threshold value, and determining second target information as the full charge identification information when judging whether the latest real-time electric quantity information is smaller than the target electric quantity threshold value so as to stop blocking the charging process of the battery;

when judging whether the latest real-time electric quantity information is larger than or equal to the target electric quantity threshold value, re-triggering and executing the latest real-time electric quantity information of the battery; and judging whether the latest real-time electric quantity information is smaller than a target electric quantity threshold value.

The second aspect of the invention discloses a battery anti-floating charge control device, which comprises:

the acquisition module is used for acquiring real-time electric quantity information of the battery after the battery meets the full charge condition;

the judging module is used for judging whether the battery meets an anti-floating charging strategy triggering condition according to the real-time electric quantity information, wherein the anti-floating charging strategy triggering condition comprises a necessary triggering sub-condition, and the necessary triggering sub-condition is used for indicating that the battery is connected with a charging device;

The first determining module is used for determining a target anti-floating charge strategy of the battery according to the attribute information of the battery when the judging module judges that the battery meets the trigger condition of the anti-floating charge strategy;

and the execution module is used for executing target operation corresponding to the target anti-floating charging strategy on the battery, wherein the target operation is used for limiting the charging process of the battery.

In a second aspect of the present invention, the attribute information of the battery includes preset service life information, the target anti-floating charging policy of the battery includes a first anti-floating charging policy or a second anti-floating charging policy, and the specific manner of determining, by the first determining module, the target anti-floating charging policy of the battery according to the attribute information of the battery includes:

As an alternative embodiment, in the second aspect of the present invention, the apparatus further includes:

the generating module is used for generating target control parameters according to the target anti-floating charging strategy and the determined charging mode of the battery before the executing module executes the target operation corresponding to the target anti-floating charging strategy on the battery, wherein the charging mode comprises one of a plugging mode and a magnetic attraction mode;

and the specific mode of the executing module executing the target operation corresponding to the target anti-floating charging strategy on the battery comprises the following steps:

the first obtaining module is configured to obtain charging information of the battery under the current electric quantity after the executing module executes a target operation corresponding to the target control parameter on the battery when the target anti-floating charging strategy is the second anti-floating charging strategy, where the charging information includes current charging information and historical charging information, the current charging information includes at least one of a current charging rate, a current charging current change rate, a current charging temperature change rate and current charging interaction information, and the historical charging information corresponds to the current charging information;

The judging module is further used for judging whether the current charging information is matched with the historical charging information or not;

the analysis module is used for analyzing a target influence factor which influences the unmatched current charging information and the unmatched historical charging information according to a preset analysis model when the judgment module judges that the current charging information and the historical charging information are unmatched;

the execution module is further configured to execute a target optimization operation corresponding to the target influence factor according to the target influence factor.

As an optional implementation manner, in a second aspect of the present invention, the target influence factor includes at least one of a first influence factor corresponding to the battery, a second influence factor corresponding to the battery connection charging device, and an association influence factor between the battery and the charging device;

and the specific mode of the execution module executing the target optimization operation corresponding to the target influence factor according to the target influence factor comprises the following steps:

In a second aspect of the present invention, as an optional implementation manner, the generating module generates the target control parameter according to the target anti-floating charging policy and the determined charging manner of the battery, where a specific manner includes:

And the specific mode of the execution module executing the target operation corresponding to the target control parameter on the battery comprises the following steps:

the second obtaining module is used for obtaining the full charge amount of each single battery cell in the battery before the battery meets the full charge condition;

the second determining module is used for determining the charging priority value of the single battery cell according to the full charge amount of the single battery cell;

the second determining module is further configured to determine a charging control parameter of the battery according to the charging priority scores of all the single battery cells;

and the control module is used for controlling a charging turn-off circuit in the battery according to the charging control parameters so as to execute charging operation on each single cell of the battery until the battery meets the full charge condition.

As an optional implementation manner, in the second aspect of the present invention, a specific manner of the execution module executing, on the battery, the target operation corresponding to the target control parameter includes:

when the target anti-floating charging strategy is the first anti-floating charging strategy, determining first target information as full charge identification information of the battery so as to block the charging process of the battery;

and, the apparatus further comprises:

the third acquisition module is used for acquiring the latest real-time electric quantity information of the battery after the execution module determines the first target information as full charge identification information of the battery so as to block the charging process of the battery;

the judging module is further configured to judge whether the latest real-time electric quantity information is smaller than a target electric quantity threshold, and when judging whether the latest real-time electric quantity information is greater than or equal to the target electric quantity threshold, re-trigger execution of the latest real-time electric quantity information of the battery; an operation of judging whether the latest real-time electric quantity information is smaller than a target electric quantity threshold value;

and the third determining module is used for determining second target information as the full charge identification information so as to stop blocking the charging process of the battery when the judging module judges whether the latest real-time electric quantity information is smaller than the target electric quantity threshold value.

The third aspect of the invention discloses another battery anti-floating charge control device, which comprises:

a memory storing executable program code;

a processor coupled to the memory;

the processor invokes the executable program code stored in the memory to execute the battery anti-floating charge control method disclosed in the first aspect of the invention.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, after the battery meets the full charge condition, the real-time electric quantity information of the battery is collected; judging whether the battery meets an anti-floating charging strategy triggering condition according to the real-time electric quantity information, wherein the anti-floating charging strategy triggering condition comprises a necessary triggering sub-condition which is used for indicating that the battery is connected with a charging device; when the battery meets the trigger condition of the anti-floating charging strategy, determining a target anti-floating charging strategy of the battery according to the attribute information of the battery, and executing target operation corresponding to the target anti-floating charging strategy on the battery, wherein the target operation is used for limiting the charging process of the battery. Therefore, after the battery meets the full charge condition, the embodiment of the invention can judge whether the battery meets the anti-floating charge strategy triggering condition according to the collected real-time electric quantity information, and when the judgment result is yes, the corresponding target anti-floating charge strategy is determined and executed according to the attribute information of the battery, the determination accuracy of the target anti-floating charge strategy is improved, the occurrence of the floating charge phenomenon of the battery is reduced, and the problem of the reduction of the service life of the battery caused by floating charge of the battery is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a battery anti-float control method according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of another battery anti-float control method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a battery anti-floating charge control device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another battery anti-floating charge control device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another battery anti-floating charge control device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an execution flow of a battery anti-floating charge control method according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an execution flow of another battery anti-floating charge control method according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, apparatus, article, or article that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or article.

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 invention. 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.

The invention discloses a battery anti-floating charge control method and device, which can judge whether a battery meets an anti-floating charge strategy triggering condition according to collected real-time electric quantity information after the battery meets a full charge condition, and when the judgment result is yes, a corresponding target anti-floating charge strategy is determined and executed according to attribute information of the battery, so that the determination accuracy of the target anti-floating charge strategy is improved, the occurrence of a battery floating charge phenomenon is reduced, and the problem of the reduction of the service life of the battery caused by battery floating charge is solved. The following will describe in detail.

Example 1

Referring to fig. 1, fig. 1 is a schematic flow chart of a battery anti-floating charge control method according to an embodiment of the invention. The battery anti-floating charge control method described in fig. 1 may be applied to a battery management system/platform, where the battery management system/platform may be deployed locally on a battery usage object or in a cloud/edge platform corresponding to the battery usage object, where the battery usage object includes, but is not limited to: the vehicle, the mobile phone, the tablet, the computer, the server, the urban energy storage lighting equipment and the like can also be applied to various charging devices corresponding to the battery body/the battery, and the embodiment of the invention is not limited. As shown in fig. 1, the battery anti-float control method may include the following operations:

101. And after the battery meets the full charge condition, collecting real-time electric quantity information of the battery.

In the embodiment of the present invention, the real-time electric quantity information includes real-time state of charge information.

102. And judging whether the battery meets the trigger condition of the anti-floating charging strategy according to the real-time electric quantity information.

In the embodiment of the invention, the anti-floating charging strategy triggering condition comprises a necessary triggering sub-condition, wherein the necessary triggering sub-condition is used for indicating that the battery is connected with the charging device.

In the embodiment of the present invention, optionally, the determining whether the battery meets the trigger condition of the anti-floating charging policy according to the real-time electric quantity information may include the following operations:

and judging whether the battery is connected with the charging device, judging whether the real-time electric quantity information is larger than or equal to a preset electric quantity threshold value when the battery is connected with the charging device, and determining that the battery meets the trigger condition of the anti-floating charging strategy when the real-time electric quantity information is larger than or equal to the preset electric quantity threshold value.

When the battery is judged to be not connected with the charging device and/or when the real-time electric quantity information is judged to be more than or equal to a preset electric quantity threshold value, the acquisition of the real-time electric quantity information of the battery can be triggered again; judging whether the battery is connected with the operation of the charging device or periodically triggering the operation. The hardware condition or the scene requirement of the application scene of the embodiment of the invention can be specifically determined, and the embodiment of the invention is not particularly limited.

For example, this alternative embodiment may be specifically: when the maximum single voltage of the battery reaches the full Charge cut-off voltage, the full Charge flag bit is 1, the SOC (State of Charge) =100%, if the charging gun is pulled out, the BMS (Battery Management System ) enters a dormant State, the full Charge flag bit should be stored, after the battery is woken up again, the full Charge flag bit is still present, and when the charging gun is plugged again, if the SOC is detected to be greater than or equal to 96%, the battery is determined to meet the anti-floating Charge strategy triggering condition. Or when the maximum single voltage of the battery reaches the full charge cut-off voltage, if the full charge flag bit is 1 and the soc=100%, if the charging gun is pulled out, the BMS enters a dormant state, the full charge flag bit is stored, after the battery is awakened again, the full charge flag bit is still available, and if the SOC is detected to be less than 96% at the moment, the battery is determined not to meet the trigger condition of the anti-floating charge strategy, so that the battery is allowed to enter the charging process.

The connection mode of the battery to the charging device may include wired connection or wireless connection, for example, if the battery is connected to the charging device in a wired manner, the battery may be connected to the charging device through a wired charging interface (such as one of a USB charging interface, a charging gun interface, and a charging suction cup interface); if the battery is in wireless connection with the charging device, the battery can be connected into the charging device through a wireless charging interface, and the induction device of the battery can be specifically placed at a magnetic attraction position capable of being subjected to wireless charging. In addition, whether the battery is connected through a wired charging interface or a wireless charging interface, when the battery/charging device detects that the corresponding parameters at the corresponding interfaces meet the preset parameter conditions, the battery is determined to be connected effectively with the charging device.

In addition, the charging device can comprise one or a plurality of charging devices selected from a charging pile, a charging socket, a solar charging plate, a wind energy charging device, a water energy charging device, a light energy charging device, a heat energy charging device, a wireless charging device and an electromagnetic charging device.

Therefore, by implementing the optional embodiment, whether the battery meets the trigger condition of the anti-floating charging strategy can be judged according to the connection state of the battery and the charging device and the real-time electric quantity information of the battery, and in a specific embodiment, the judgment is assisted by combining the zone bit information, so that the trigger accuracy of the anti-floating charging strategy is improved, and the follow-up targeted execution of the corresponding target anti-floating charging strategy for the battery meeting the trigger condition is facilitated.

103. When the battery meets the trigger condition of the anti-floating charge strategy, determining the target anti-floating charge strategy of the battery according to the attribute information of the battery.

In an embodiment of the present invention, as an optional implementation manner, the attribute information of the battery may include preset service life information, the target anti-floating charging policy of the battery includes a first anti-floating charging policy or a second anti-floating charging policy, and the determining, according to the attribute information of the battery, the target anti-floating charging policy of the battery may include the following operations:

Judging whether a target value corresponding to preset service life information is larger than or equal to a preset service life threshold value, and determining the first anti-floating charge strategy as a target anti-floating charge strategy of the battery when the target value is larger than or equal to the preset service threshold value; and when the target value is judged to be smaller than the preset use threshold value, determining the second anti-floating charging strategy as the target anti-floating charging strategy of the battery.

In this optional embodiment, the attribute information may further include at least one of application object information, battery charging interface information, battery storage capacity information, battery remaining capacity information, battery charging rate information, battery admittance voltage (current/charge/power) information, battery discharging efficiency information, battery external discharging device information, battery history charging information, and battery type information.

In this alternative embodiment, the above-mentioned blocking of the battery charging process may be performed at the battery end, or may be performed at the charging device end, or may be performed by co-blocking the battery and the charging device.

The attenuation manner of the charging control parameter of the attenuation battery is the same as that of the blocking battery charging process, for example, attenuation can be performed at the battery end.

Therefore, by implementing the alternative embodiment, the target anti-floating charging strategy of the battery meeting the trigger condition of the anti-floating charging strategy can be determined according to the service life information of the battery, the determination accuracy of the target anti-floating charging strategy can be improved, the occurrence of the floating charging phenomenon of the battery can be reduced, the problem of the reduction of the service life of the battery caused by floating charging of the battery can be solved, and the service life of the battery with different attributes can be further prolonged. Meanwhile, the charging process of the battery is limited, and the battery charging process can be further realized through a fixed end or multi-end cooperation mode, so that the flexibility of the executing mode of the executing target anti-floating charging strategy is further improved.

In this optional embodiment, as an optional implementation manner, the preset service life information may be calculated according to the other attribute information (for example, battery access voltage information, battery discharge efficiency information, battery external discharge device information, battery historical charging information, etc.) through a preset regression calculation model, and the preset regression calculation model may be obtained by performing data distillation and data cleaning training by using the other attribute information. The preset regression calculation model can also be obtained by training one or more of linear regression, logistic regression, polynomial regression, stepwise regression, ridge regression and lasso regression through superposition hierarchy.

Specifically, the preset regression calculation model may include a first regression model set including at least one basic model including at least one of a gradient lifting regression model, an extreme tree regression model, a random forest regression model, and an adaptive lifting regression model, and a second regression model including a linear regression model.

In this optional embodiment, as an optional implementation manner, the training method of the preset regression calculation model may specifically include the following steps:

and dividing the training sample data set according to preset cross-validation conditions.

And inputting each training sample data in the divided training sample data set into a corresponding basic model to obtain a first prediction result corresponding to each training sample data and a first target model set corresponding to the first regression model set.

And inputting the first prediction results corresponding to all the training sample data into a second regression model to obtain second prediction results corresponding to all the training sample data and a second target model corresponding to the second regression model, wherein the second prediction results are used for representing predicted battery service life information corresponding to all the training sample data.

And determining the first target model set and the second target model as the prediction model to be verified according to the second prediction results corresponding to all the training sample data.

And inputting all the verification sample data in the verification sample data set into the prediction model to be verified to obtain verification results corresponding to all the verification sample data, wherein the verification results are used for representing the predicted battery service life information corresponding to all the verification sample data.

Judging whether the verification result meets the preset verification completion condition, and determining the prediction model to be verified as the target prediction model when judging that the verification result meets the preset verification completion condition.

In this optional embodiment, the number of times of cross-validation corresponding to the preset cross-validation condition and the logic for dividing the sample data set may be selected according to the actual application scenario, which is not specifically limited in the present invention.

It can be seen that implementing the alternative embodiment can also provide a training method of a preset regression calculation model, where the preset regression calculation model can calculate preset service life information of the battery, so that not only can accuracy of predicting service life information of the battery by the preset regression calculation model be improved by the training method, but also the service life information of the battery can be quantized, and further accuracy of determining a target anti-floating charging strategy corresponding to the battery is improved.

104. And executing target operation corresponding to the target anti-floating charging strategy on the battery.

Wherein the target operation is used to limit the charging process of the battery.

In the embodiment of the present invention, the above-mentioned target operations may further include the following operations:

sending a policy execution information set to a use object corresponding to a battery to prompt the use object corresponding to the battery to execute the anti-floating charging policy, where the policy execution information set includes: at least one of real-time electric quantity information of the battery, charging state information of the battery, real-time temperature information of the battery, real-time state information of a battery charging process, image information of a battery corresponding to a use object, and charging image information between the charging device and a battery charging interface. The prompting mode of the policy execution information set may include at least one of image prompting, voice prompting and lamplight prompting, and the prompting mode corresponds to an image display device, a voice output device and a lamplight display device of a corresponding use object of the battery.

Therefore, after the battery meets the full charge condition, the embodiment of the invention can judge whether the battery meets the anti-floating charge strategy triggering condition according to the collected real-time electric quantity information, and when the judgment result is yes, the corresponding target anti-floating charge strategy is determined and executed according to the attribute information of the battery, the determination accuracy of the target anti-floating charge strategy is improved, the occurrence of the floating charge phenomenon of the battery is reduced, and the problem of the reduction of the service life of the battery caused by floating charge of the battery is solved.

In this embodiment of the present invention, as another optional implementation manner, before the above-mentioned target operation corresponding to the target anti-floating charging policy is performed on the battery, the method may further include the following operations:

and generating target control parameters according to the target anti-floating charging strategy and the determined charging mode of the battery, wherein the charging mode comprises one of a plugging mode and a magnetic attraction mode.

And, performing the target operation corresponding to the target anti-float policy on the battery may include:

Therefore, by implementing the alternative embodiment, the accuracy of determining the target control parameter can be improved, and further the accuracy of executing the target operation corresponding to the target control parameter executed by the battery is improved, which is beneficial to reducing the occurrence of the battery float charging phenomenon, so as to solve the problem of the reduction of the service life of the battery caused by the battery float charging.

In an embodiment of the present invention, as a further alternative implementation manner, before the battery meets the full charge condition, the method may further include the following operations:

and for each single cell in the battery, acquiring the full charge of the single cell, and determining the charging priority score of the single cell according to the full charge of the single cell.

And determining the charging control parameters of the battery according to the charging priority scores of all the single battery cells.

And controlling a charging turn-off circuit in the battery according to the charging control parameters so as to execute charging operation on each single battery cell of the battery until the battery meets the full charge condition.

Therefore, the implementation of the alternative embodiment can carry out refined control on the inside of the battery, not only can reduce the occurrence of the battery floating charge phenomenon after the battery is fully charged so as to solve the problem of the reduction of the service life of the battery caused by the battery floating charge, but also can fully protect the battery in the process of fully charging the battery, prevent the inside of the battery from being overcharged by individual battery cores so as to reduce the service life of the battery, and the implementation of the alternative embodiment can fully protect the battery in the battery charging process, ensure the preset service life of the battery to be fully released, and is beneficial to improving the service reliability of the battery.

Example two

Referring to fig. 2, fig. 2 is a flow chart of a battery anti-floating control method according to an embodiment of the invention. The battery anti-floating charge control method described in fig. 2 may be applied to a battery management system/platform, where the battery management system/platform may be deployed locally on a battery usage object or in a cloud/edge platform corresponding to the battery usage object, where the battery usage object includes, but is not limited to: the vehicle, the mobile phone, the tablet, the computer, the server, the urban energy storage lighting equipment and the like can also be applied to various charging devices corresponding to the battery body/the battery, and the embodiment of the invention is not limited. As shown in fig. 2, the battery anti-float control method may include the following operations:

201. And after the battery meets the full charge condition, collecting real-time electric quantity information of the battery.

202. And judging whether the battery meets the trigger condition of the anti-floating charging strategy according to the real-time electric quantity information.

203. When the battery meets the trigger condition of the anti-floating charge strategy, determining the target anti-floating charge strategy of the battery according to the attribute information of the battery.

204. And executing target operation corresponding to the target anti-floating charging strategy on the battery.

In the embodiment of the present invention, for other descriptions of step 201 to step 204, please refer to the detailed descriptions of step 101 to step 104 in the first embodiment, and the description of the embodiment of the present invention is omitted.

205. And when the target anti-floating charging strategy is the second anti-floating charging strategy, acquiring charging information of the battery under the current electric quantity.

In the embodiment of the invention, the charging information comprises current charging information and historical charging information, the current charging information comprises at least one of current charging rate, current charging current change rate, current charging temperature change rate and current charging interaction information, and the historical charging information corresponds to the current charging information.

206. And judging whether the current charging information is matched with the historical charging information.

207. And when the current charging information and the historical charging information are not matched, analyzing a target influence factor which influences the mismatch of the current charging information and the historical charging information according to a preset analysis model.

Optionally, when the current charging information and the historical charging information are judged to be matched, continuing to execute the target operation corresponding to the target anti-floating charging strategy on the battery.

208. And executing target optimization operation corresponding to the target influence factor according to the target influence factor.

In an embodiment of the present invention, as an optional implementation manner, the target influencing factor includes at least one of a first influencing factor corresponding to the battery, a second influencing factor corresponding to the battery connected to the charging device, and an associated influencing factor between the battery and the charging device.

And, according to the target influence factor, performing the target optimization operation corresponding to the target influence factor may include:

when the target influence factor comprises a first influence factor, judging whether the battery meets an abnormal charging condition according to the first influence factor, when the battery meets the abnormal charging condition, determining abnormal degree information of the battery, generating fluid control parameters of the battery according to the abnormal degree information, and executing target optimization operation on the battery according to the fluid control parameters, wherein the fluid control parameters comprise gas-fluid control parameters or liquid-fluid control parameters.

When the target influence factor comprises the second influence factor, according to the second influence factor, controlling an output device corresponding to the charging device to output prompt information corresponding to the second influence factor so as to prompt the second influence factor to a use object corresponding to the battery.

When the target influence factor comprises the associated influence factor, controlling the battery and the charging device to execute the collaborative optimization operation according to the associated influence factor.

Optionally, when the target influencing factors include at least two influencing factors of the first influencing factor, the second influencing factor and the associated influencing factor, the battery and the charging device may determine a plurality of optimization operation combinations based on at least two influencing factors of the influencing factors, calculate the optimization complexity corresponding to each optimization operation combination according to the optimization operation matters in each optimization operation combination and estimate the optimization effectiveness corresponding to each optimization operation combination, select one of the optimization operation combinations from all the optimization operation combinations according to the optimization complexity corresponding to each optimization operation combination, the optimization effectiveness corresponding to each optimization operation combination and the predetermined optimization requirement, and execute the matched optimization processing operation based on the influencing factor corresponding to the optimization operation combination.

It can be seen that this alternative embodiment is also capable of performing an optimization processing operation adaptively according to the analyzed influence factor, which is beneficial to improving flexibility of the optimization processing operation, and is also capable of improving matching degree between the optimization processing operation and a charging requirement of a battery. In addition, the matched optimization operation combination can be selected in a self-adaptive mode according to the optimization complexity corresponding to each optimization operation combination, the optimization effectiveness corresponding to each optimization operation combination and the predetermined optimization requirement, and then matched optimization processing operation is executed according to the selected optimization operation combination, so that the optimization effectiveness can be improved, and the optimization complexity can be reduced.

Therefore, after the target operation corresponding to the second anti-floating charging strategy is executed on the battery, the strategy execution condition analysis is further carried out according to the latest charging information of the battery, when the current charging information and the historical charging information under the strategy execution are not matched, the influence factors influencing the strategy execution are analyzed, the corresponding optimization operation is executed according to the influence factors, and the optimization operation has flexible superposition matching in various modes, so that the execution rate of executing the determined target anti-floating charging strategy can be improved, the occurrence of the floating charging phenomenon of the battery can be reduced, and the service life of the battery can be further prolonged.

In an embodiment of the present invention, as an optional implementation manner, when the target anti-floating charging policy is the first anti-floating charging policy, the above-mentioned performing, on the battery, the target operation corresponding to the target control parameter may include the following operations:

and determining the first target information as full charge identification information of the battery so as to block the charging process of the battery.

And determining the first target information as full charge identification information of the battery to block a charging progress of the battery, the method may further include the operations of:

and acquiring the latest real-time electric quantity information of the battery.

And judging whether the latest real-time electric quantity information is smaller than a target electric quantity threshold value, and determining the second target information as full charge identification information when judging whether the latest real-time electric quantity information is smaller than the target electric quantity threshold value so as to stop blocking the charging process of the battery.

Optionally, the full charge identification information may be full charge flag information, the first target information may be a value, for example, 1, and the corresponding second target information may be 0.

Therefore, when the target anti-floating charging strategy is the first anti-floating charging strategy, the alternative embodiment can automatically block the charging process of the battery through full charging identification information, simplify the complexity of the blocking scheme and improve the convenience of scheme execution. Meanwhile, after the operation of blocking the charging progress of the battery is executed, the adjustment direction of the full charge identification information is determined again according to the latest real-time electric quantity information of the battery, and when the real-time electric quantity information is smaller than the target electric quantity threshold value, the automatic control can stop blocking the charging progress of the battery, so that the degree of automation of the scheme is improved, and the control accuracy of executing the anti-floating charging strategy on the battery is further improved.

In this embodiment of the present invention, as another optional implementation manner, the generating the target control parameter according to the target anti-floating charging policy and the determined charging mode of the battery may include the following operations:

when the first anti-floating charging strategy is determined to be the target anti-floating charging strategy, all associated circuits between the battery and the charging device connected with the battery are determined according to the charging mode, the target associated circuit is determined in all the associated circuits, and a first control parameter is generated according to the blocking control mode of the target associated circuit.

It should be noted that all the associated circuits between the battery and the charging device to which the battery is connected include circuits in the battery and/or circuits in the charging device.

Optionally, in all the association circuits, determining the target association circuit may include the following operations:

for each associated circuit, determining the circuit complexity and the circuit priority of the associated circuit according to the connection device information of all the connection terminals in the associated circuit.

And determining the target associated circuit according to the circuit complexity and the circuit priority of all the associated circuits.

Further, optionally, determining the target associated circuit according to the circuit complexity and the circuit priority of all the associated circuits may include:

for each associated circuit, an alternative score for the associated circuit is calculated based on the circuit complexity and the circuit priority of the associated circuit.

And determining the target associated circuit according to the alternative scores of all the associated circuits.

Further, optionally, calculating the candidate score of the associated circuit according to the circuit complexity and the circuit priority of the associated circuit may include:

and determining a first score of the associated circuit according to the circuit complexity of the associated circuit, wherein the circuit complexity is inversely proportional to the first score.

And determining a second score of the associated circuit according to the circuit priority of the associated circuit, wherein the circuit priority is in direct proportion to the second score.

And calculating the alternative score of the associated circuit according to the first score and the second score.

And, determining the target associated circuit according to the candidate scores of all the associated circuits may include:

and judging whether target alternative values with minimum residual errors between the alternative values of all the associated circuits and the preset alternative values exist or not, and determining the associated circuit corresponding to the target alternative values as a target associated circuit when the judgment result is yes.

When the second anti-floating charging strategy is determined to be the target anti-floating charging strategy, determining a target attenuation coefficient of the battery according to the acquired real-time temperature information and real-time electric quantity information of the battery, and generating a second control parameter according to the target attenuation coefficient and the charging mode.

Optionally, if the charging current is requested to be C1 when the anti-floating charging strategy is not started, the charging current is requested to be k×c1 when the anti-floating charging strategy is started, and the attenuation coefficient K may be calibrated according to the SOC interval, for example, the SOC is within [96%, 97%), where k=0.8; SOC is within [97%, 98%), k=0.7; SOC is within [98%, 99%), k=0.6; SOC is within [99%, 100%), k=0.5.

Further, optionally, when the real-time temperature information of the battery indicates that the real-time temperature of the battery is less than the preset working temperature, a preheating operation is performed on the battery, and when the real-time temperature of the battery after preheating is greater than or equal to the preset working temperature, the operation of determining the target attenuation coefficient of the battery according to the acquired real-time temperature information and real-time electric quantity information of the battery and generating the second control parameter according to the target attenuation coefficient and the charging mode is triggered.

And performing the target operation corresponding to the target control parameter on the battery may include:

according to the first control parameter, the control target associated circuit blocks the charging process; or,

and according to the second control parameter, controlling the target equipment to execute the attenuation operation matched with the second control parameter, wherein the target equipment comprises a battery or a charging device.

In this alternative embodiment, the further target association circuit described above may be specific to an association circuit of an internal cell of the battery.

It can be seen that when the target anti-floating charging strategy is determined to be the first anti-floating charging strategy and the second anti-floating charging strategy, different control parameters are determined according to the real-time temperature information and the real-time electric quantity information of the associated circuit or the battery respectively, so that the determination accuracy of the control parameters is improved, the control accuracy of executing corresponding target operation on the battery is improved, and the optional embodiment also discloses a determination mode of the target associated circuit, which can determine the target associated circuit in a complex circuit network between the battery and the charging device, so that the control accuracy of blocking the charging process is improved, the influence on other working units of the battery and/or the charging device is prevented, and accurate blocking can be achieved.

Example III

Referring to fig. 3, fig. 3 is a schematic structural diagram of a battery anti-floating control device according to an embodiment of the invention. The battery anti-floating charge control device described in fig. 3 may be applied to a battery management system/platform, where the battery management system/platform may be deployed locally to a battery usage object or in a cloud/edge platform corresponding to the battery usage object, where the battery usage object includes, but is not limited to: the vehicle, the mobile phone, the tablet, the computer, the server, the urban energy storage lighting equipment and the like can also be applied to various charging devices corresponding to the battery body/the battery, and the embodiment of the invention is not limited. As shown in fig. 3, the battery anti-float control device may include:

the acquisition module 301 is configured to acquire real-time power information of the battery after the battery meets the full charge condition.

The judging module 302 is configured to judge whether the battery meets an anti-floating charging policy triggering condition according to the real-time electric quantity information, where the anti-floating charging policy triggering condition includes a necessary triggering sub-condition, and the necessary triggering sub-condition is used to indicate that the battery is connected to the charging device.

The first determining module 303 is configured to determine, according to attribute information of the battery, a target anti-floating charging policy of the battery when the judging module 302 judges that the battery meets an anti-floating charging policy triggering condition.

The execution module 304 is configured to execute a target operation corresponding to the target anti-floating charging policy on the battery, where the target operation is used to limit a charging process of the battery.

In this embodiment of the present invention, as an optional implementation manner, the attribute information of the battery includes preset service life information, the target anti-floating charging policy of the battery includes a first anti-floating charging policy or a second anti-floating charging policy, and the specific manner of determining, by the first determining module 303, the target anti-floating charging policy of the battery according to the attribute information of the battery includes:

In an embodiment of the present invention, as another alternative implementation manner, as shown in fig. 4, the apparatus may further include:

the generating module 305 is configured to generate, before the executing module 304 executes a target operation corresponding to the target anti-floating charging policy on the battery, a target control parameter according to the target anti-floating charging policy and the determined charging mode of the battery, where the charging mode includes one of a plug mode and a magnetic attraction mode.

And, specific modes of the execution module 304 executing the target operation corresponding to the target anti-floating charging policy on the battery include:

In an embodiment of the present invention, as a further alternative implementation manner, as shown in fig. 4, the apparatus may further include:

the first obtaining module 306 is configured to obtain, when the target anti-floating charging policy is the second anti-floating charging policy, charging information of the battery under the current electric quantity after the executing module 304 executes the target operation corresponding to the target control parameter on the battery, where the charging information includes current charging information and historical charging information, and the current charging information includes at least one of a current charging rate, a current charging current change rate, a current charging temperature change rate, and current charging interaction information, and the historical charging information corresponds to the current charging information.

The judging module 302 is further configured to judge whether the current charging information matches the historical charging information.

And an analysis module 307, configured to analyze a target influence factor that affects the mismatch between the current charging information and the historical charging information according to a preset analysis model when the judgment module 302 judges that the current charging information and the historical charging information are not matched.

The execution module 304 is further configured to execute a target optimization operation corresponding to the target influence factor according to the target influence factor.

In this optional embodiment, as an optional implementation manner, the target influence factor includes at least one of a first influence factor corresponding to the battery, a second influence factor corresponding to the battery connection charging device, and an association influence factor between the battery and the charging device.

And, the specific ways of executing the target optimization operation corresponding to the target influence factor by the execution module 304 according to the target influence factor include:

In an alternative embodiment, the specific manner of generating the target control parameter by the generating module 305 according to the target anti-floating charging policy and the determined charging manner of the battery includes:

And, specific ways of executing the target operation corresponding to the target control parameter by the execution module 304 on the battery include:

In another alternative embodiment, as shown in fig. 4, the apparatus may further include:

the second obtaining module 308 is configured to obtain, for each unit cell in the battery, a full charge amount of the unit cell before the battery meets the full charge condition.

A second determining module 309, configured to determine a charging priority score of the single cell according to the full charge of the single cell.

The second determining module 309 is further configured to determine a charging control parameter of the battery according to the charging priority scores of all the unit cells.

The control module 310 is configured to control a charge shutdown circuit inside the battery according to the charge control parameter, so as to perform a charging operation on each single cell of the battery until the battery meets a full charge condition.

In yet another alternative embodiment, the specific manner in which the execution module 304 performs the target operation corresponding to the target control parameter on the battery includes:

when the target anti-floating charging strategy is the first anti-floating charging strategy, the first target information is determined to be full-charge identification information of the battery so as to block the charging process of the battery.

And, as shown in fig. 4, the apparatus may further include:

The third obtaining module 311 is configured to obtain the latest real-time power information of the battery after the executing module 304 determines the first target information as full charge identification information of the battery to block a charging process of the battery.

The judging module 302 is further configured to judge whether the latest real-time electric quantity information is smaller than the target electric quantity threshold, and when judging whether the latest real-time electric quantity information is greater than or equal to the target electric quantity threshold, re-trigger execution of the latest real-time electric quantity information of the acquired battery; and judging whether the latest real-time electric quantity information is smaller than a target electric quantity threshold value.

And a third determining module 312, configured to determine the second target information as full charge identification information to stop blocking the charging process of the battery when the determining module 302 determines whether the latest real-time power information is less than the target power threshold.

Example IV

Referring to fig. 5, fig. 5 is a schematic structural diagram of a battery anti-floating control device according to another embodiment of the present invention. As shown in fig. 5, the battery anti-float control device may include:

a memory 401 storing executable program code.

A processor 402 coupled with the memory 401.

The processor 402 invokes executable program codes stored in the memory 401 to execute the steps in the battery anti-floating charge control method described in the first or second embodiment of the present invention.

Example five

The embodiment of the invention discloses a computer storage medium which stores computer instructions for executing the steps in the battery anti-floating charge control method described in the first or second embodiment of the invention when the computer instructions are called.

Example six

An embodiment of the present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute steps in the battery anti-float control method described in the first embodiment or the second embodiment.

The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above detailed description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course by means of hardware. Based on such understanding, the foregoing technical solutions may be embodied essentially or in part in the form of a software product that may be stored in a computer-readable storage medium including Read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disc Memory, magnetic disc Memory, tape Memory, or any other medium that can be used for computer-readable carrying or storing data.

Finally, it should be noted that: the embodiment of the invention discloses a battery anti-floating charge control method and device, which are disclosed by the embodiment of the invention only for illustrating the technical scheme of the invention, but not limiting the technical scheme; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A battery anti-float control method, the method comprising:

2. The battery anti-float control method according to claim 1, wherein the attribute information of the battery includes preset service life information, the target anti-float strategy of the battery includes a first anti-float strategy or a second anti-float strategy, and the determining the target anti-float strategy of the battery according to the attribute information of the battery includes:

3. The battery anti-float control method of claim 2, wherein prior to said performing a target operation on said battery corresponding to said target anti-float strategy, said method further comprises:

4. The battery anti-float control method of claim 3, wherein when the target anti-float strategy is the second anti-float strategy, after the target operation corresponding to the target control parameter is performed on the battery, the method further comprises:

5. The battery anti-float control method of claim 4, wherein the target impact factor includes at least one of a first impact factor corresponding to the battery, a second impact factor corresponding to the battery connection charging device, and an association impact factor between the battery and the charging device;

6. The battery anti-float control method according to any one of claims 3-5, wherein the generating the target control parameter according to the target anti-float strategy and the determined charging mode of the battery includes:

7. The battery anti-float control method of any of claims 1-5, wherein said method further comprises, before said battery meets a full charge condition:

8. The battery anti-float control method according to claim 2, wherein when the target anti-float strategy is the first anti-float strategy, the performing, on the battery, the target operation corresponding to the target control parameter includes:

acquiring the latest real-time electric quantity information of the battery;

9. A battery anti-float control device, the device comprising:

10. A battery anti-float control device, the device comprising:

a memory storing executable program code;

a processor coupled to the memory;

the processor invokes the executable program code stored in the memory to perform the battery anti-float control method of any one of claims 1-8.