CN108828453B - Method and device for acquiring charging data of power battery - Google Patents
Method and device for acquiring charging data of power battery Download PDFInfo
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- CN108828453B CN108828453B CN201810712622.5A CN201810712622A CN108828453B CN 108828453 B CN108828453 B CN 108828453B CN 201810712622 A CN201810712622 A CN 201810712622A CN 108828453 B CN108828453 B CN 108828453B
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Abstract
The embodiment of the invention provides a method and a device for acquiring charging data of a power battery, wherein the method comprises the following steps: respectively acquiring first electric quantity data of a first charging section and second electric quantity data of a second charging section of the power battery; finding invalid charging cycle data in the first electric quantity data and the second electric quantity data; deleting the invalid charging cycle data, and taking the electric quantity data of which the invalid charging cycle data is deleted as effective charging cycle data; and generating power battery charging data through the effective charging cycle data. By the method, invalid charging cycle data are removed from the electric quantity data, the electric quantity data participating in calculation are all valid charging cycle data, and the accuracy of the internal resistance data and the capacity number of the power battery is further ensured.
Description
Technical Field
The present invention relates to the field of power technologies, and in particular, to a method and an apparatus for acquiring charging data of a power battery.
Background
With the development of the times, electric energy vehicles gradually enter the daily lives of people, and how to accurately judge the energy value supplemented by a power battery in the process of supplementing energy to electric vehicles is a problem to be solved by technical personnel in the field, which is different from a fuel oil powered vehicle.
In the judgment process aiming at the supplemented energy value of the power battery, whether the acquired internal resistance data and the acquired capacity data of the power battery are accurate directly influences the correctness and the integrity of the charging cycle selection process, but in the prior art, the calculation aiming at the internal resistance data and the capacity data of the power battery can only screen the calculation results of the internal resistance data and the capacity data of the power battery on the basis of common knowledge, and then the accuracy of the supplemented energy value of the power battery of the automobile is judged according to the validity of the final result. However, this method cannot exclude an abnormal calculation process, and thus cannot guarantee authenticity of the charge segment data.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide an acquisition method for power battery charging data and a corresponding acquisition apparatus for power battery charging data that overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention discloses a method for acquiring charging data of a power battery, where the method is applied to a charging system of the power battery, the charging system includes the power battery, and the method includes:
respectively acquiring first electric quantity data of a first charging section and second electric quantity data of a second charging section of the power battery;
finding invalid charging cycle data in the first electric quantity data and the second electric quantity data;
deleting the invalid charging cycle data, and taking the electric quantity data of which the invalid charging cycle data is deleted as effective charging cycle data;
and generating power battery charging data through the effective charging cycle data.
Preferably, the first charging section and the second charging section respectively comprise a charging intermediate stage, the charging intermediate stage has a discharging current, the discharging current has corresponding discharging current data, and the step of finding invalid charging cycle data in the first power data and the second power data comprises:
judging whether the discharge current data of the first charging section exceeds a preset value;
if so, judging the first electric quantity data as invalid charging cycle data;
judging whether the discharge current data of the second charging section exceeds a preset value;
and if so, judging the second electric quantity data as invalid charging cycle data.
Preferably, the first charging segment has a corresponding first time period, the second charging segment has a corresponding second time period, a time interval is provided between the first time period and the second time period, and the step of finding invalid charging cycle data in the first power amount data and the second power amount data further comprises:
judging whether the time interval is smaller than a first preset time length or not;
if not, respectively judging whether the first time period and the second time period are less than a second preset time length;
if the first time period is less than a second preset time period, judging the first electric quantity data as invalid charging cycle data;
and if the second time period is less than a second preset time period, judging the second electric quantity data as invalid charging cycle data.
Preferably, the method further comprises the following steps:
inaccurate charging cycle data is found out in the first and second electric quantity data, and effective charging cycle data is generated by modifying the inaccurate charging cycle data.
Preferably, the steps of the first charging section and the second charging section including a charging start stage, a charging middle stage, and a charging end stage, the charging start stage, the charging middle stage, and the charging end stage having a one-to-one correspondence of charging start stage electricity quantity data, charging middle stage electricity quantity data, and charging end stage electricity quantity data, respectively, finding inaccurate charging cycle data in the first electricity quantity data and the second electricity quantity data, and generating effective charging cycle data by modifying the inaccurate charging cycle data include:
judging whether the charging initial stage or the charging end stage of the first charging section has a discharging current;
if so, judging the electric quantity data of the first charging section as inaccurate charging cycle data;
deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the first charging section, and taking the electric quantity data of the charging middle stage of the first charging section as effective charging cycle data;
judging whether the charging initial stage or the charging end stage of the second charging section has a discharging current;
if so, judging the electric quantity data of the second charging section as inaccurate charging cycle data;
and deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the second charging section, and taking the electric quantity data of the charging middle stage of the second charging section as effective charging cycle data.
Preferably, the first charging segment has a corresponding first time period, the second charging segment has a corresponding second time period, there is a time interval between the first time period and the second time period, the steps of finding inaccurate charging cycle data in the first power amount data and the second power amount data, and generating valid charging cycle data by modifying the inaccurate charging cycle data further comprise:
judging whether the time interval is smaller than a first preset time length or not;
and if so, judging the first electric quantity data and the second electric quantity data as inaccurate charging cycle data, and combining the first electric quantity data and the second electric quantity data to be effective charging cycle data.
Preferably, the power battery charging data comprises internal resistance data of the power battery and capacity data of the power battery; wherein the internal resistance data is a positive number and is a non-infinite number; the capacity data is a positive number and is less than or equal to a preset capacity value.
The embodiment of the invention discloses a device for acquiring charging data of a power battery, which is applied to a charging system of the power battery, wherein the charging system comprises the power battery, and the device comprises:
the acquisition module is used for respectively acquiring first electric quantity data of a first charging section and second electric quantity data of a second charging section of the power battery;
the searching module is used for searching invalid charging cycle data in the first electric quantity data and the second electric quantity data;
the deleting module is used for deleting the invalid charging cycle data and taking the electric quantity data of the deleted invalid charging cycle data as effective charging cycle data;
and the charging data generation module is used for generating power battery charging data through the effective charging cycle data.
Preferably, the first charging section and the second charging section respectively comprise a charging intermediate stage, the charging intermediate stage has a discharging current, the discharging current has corresponding discharging current data, and the search module comprises:
the first judgment submodule is used for judging whether the discharge current data of the first charging section exceeds a preset value or not; if yes, a first judgment submodule is performed;
a first determination submodule configured to determine the first electric quantity data as invalid charging cycle data;
a second judgment submodule, configured to judge whether the discharge current data of the second charging section exceeds a preset value; if yes, a second stator judging module is carried out;
and the second judging submodule is used for judging the second electric quantity data as invalid charging cycle data.
Preferably, the first charging segment has a corresponding first time period, the second charging segment has a corresponding second time period, and a time interval is provided between the first time period and the second time period, the search module further includes:
the third judgment submodule is used for judging whether the time interval is smaller than the first preset time length or not; if not, calling a fourth judgment submodule;
the fourth judgment submodule is used for respectively judging whether the first time period and the second time period are smaller than a second preset time length; if the first time period is less than a second preset time period, calling a third judgment submodule; if the second time period is less than a second preset time period, calling a fourth judgment submodule;
a third determination submodule configured to determine the first electric quantity data as invalid charging cycle data;
and the fourth judging submodule is used for judging the second electric quantity data as invalid charging cycle data.
Preferably, the apparatus further comprises:
and the inaccurate charging cycle data searching module is used for searching inaccurate charging cycle data in the first electric quantity data and the second electric quantity data and generating effective charging cycle data by modifying the inaccurate charging cycle data.
Preferably, the first charging section and the second charging section include a charging start stage, a charging middle stage, and a charging end stage, the charging start stage, the charging middle stage, and the charging end stage respectively have one-to-one corresponding charging start stage electric quantity data, charging middle stage electric quantity data, and charging end stage electric quantity data, and the inaccurate charging cycle data search module includes:
a fifth judging submodule, configured to judge whether the charging start stage or the charging end stage of the first charging stage has a discharging current; if yes, calling a fifth judgment submodule;
a fifth judging submodule, configured to judge the electric quantity data of the first charging stage as inaccurate charging cycle data;
the first deleting submodule is used for deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the first charging section and taking the electric quantity data of the charging middle stage of the first charging section as effective charging cycle data;
a sixth judging submodule, configured to judge whether the charge start stage or the charge end stage of the second charge stage has a discharge current; if yes, calling a sixth judgment submodule;
a sixth judgment submodule, configured to judge the electric quantity data of the second charging stage as inaccurate charging cycle data;
and the second deleting submodule is used for deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging tail stage of the second charging section, and taking the electric quantity data of the charging middle stage of the second charging section as effective charging cycle data.
Preferably, the first charging segment has a corresponding first time period, the second charging segment has a corresponding second time period, and there is a time interval between the first time period and the second time period, and the inaccurate charging cycle data lookup module further comprises:
a seventh judging submodule, configured to judge whether the time interval is smaller than a first preset duration; if yes, calling a seventh judging submodule;
a seventh determining submodule, configured to determine the first electric quantity data and the second electric quantity data as inaccurate charging cycle data, and merge the first electric quantity data and the second electric quantity data as effective charging cycle data.
Preferably, the power battery charging data comprises internal resistance data of the power battery and capacity data of the power battery; wherein the internal resistance data is a positive number and is a non-infinite number; the capacity data is a positive number and is less than or equal to a preset capacity value.
By applying the embodiment of the invention in practical application, the electric quantity data of the power battery can be acquired in sections, invalid charging cycle data is screened from the acquired multiple sections of electric quantity data, the electric quantity data except the invalid charging cycle data is used as valid charging cycle data, and finally the power battery charging data is generated through the valid charging cycle data, so that the invalid charging cycle data is eliminated from the electric quantity data, the electric quantity data participating in calculation is ensured to be valid charging cycle data, and the accuracy of the internal resistance data of the power battery and the capacity of the power battery is further ensured.
Drawings
FIG. 1 is a flowchart illustrating steps of an embodiment of a method for acquiring charging data of a power battery according to the present invention;
FIG. 2 is a flow chart illustrating steps of another embodiment of a method for obtaining charging data of a power battery according to the present invention;
fig. 3 is a block diagram of an embodiment of the present invention for acquiring the charging data of the power battery.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a flowchart illustrating steps of an embodiment of a method for acquiring charging data of a power battery according to the present invention is shown, and specifically, the method may include the following steps:
in specific implementation, the embodiment of the invention can be applied to a charging system of a power battery, for example, a charging system of a mobile terminal, a charging system of an electric vehicle and the like.
In practical application, in the process of charging the power battery, the embodiment of the invention can be divided into a plurality of stages to charge the battery, that is, the power battery of the embodiment of the invention has a plurality of charging sections.
The charging system is provided with a power battery and a power battery charger, wherein the power battery charger is provided with a data processing device for acquiring and processing charging data, and the data processing device can acquire a plurality of electric quantity data corresponding to a plurality of charging sections of the power battery.
in practical application, the embodiment of the invention can firstly judge the accuracy and the integrity of the electric quantity data corresponding to the charging section, and then determine whether to adopt the electric quantity data as effective power cycle data to generate the charging data of the power battery.
In a preferred embodiment of the present invention, invalid charging cycle data can also be found out in the first and second power data by:
judging whether the discharge current data of the first charging section exceeds a preset value or not in a first mode; if so, judging the first electric quantity data as invalid charging cycle data; judging whether the discharge current data of the second charging section exceeds a preset value; if so, the second electric quantity data is determined as invalid charging cycle data.
In a specific implementation, the charging section of the embodiment of the present invention may include an intermediate charging stage, during the charging process of the power battery, a discharging current occurring in the intermediate charging stage is allowed, and the system may record data about the discharging current, where the data may include a discharging duration, a charging/discharging number, and the like.
In a preferred embodiment of the present invention, the preset value may be 10% of the discharge current data based on the charge section data value.
For example, a. discharge data time length/data segment time length 100% ═ 10%; charge and discharge times/data segment sampling times 100% ═ 10%, and so on. If it is detected that a discharging current occurs in the charging intermediate stage of a certain charging segment and the discharging current data is greater than a preset value, the electric quantity data of the charging segment can be determined as invalid charging cycle data, the invalid charging cycle data is the electric quantity data without accuracy, and the electric quantity data of the charging segment with the invalid charging cycle data is deleted.
For example, if the charging time period of a certain charging segment is 1 hour, and the total time period of occurrence of the discharge current in the charging intermediate stage of the data segment exceeds 6 minutes, the data of the amount of electricity of the certain charging segment is invalid charging cycle data, and should be deleted.
The second method comprises the following steps: judging whether the time interval is smaller than a first preset time length or not; if not, respectively judging whether the first time period and the second time period are less than a second preset time period; if the first time period is less than a second preset time period, judging the first electric quantity data as invalid charging cycle data; and if the second time period is less than a second preset time period, judging the second electric quantity data as invalid charging cycle data.
In a specific implementation, a plurality of charging segments in the embodiment of the present invention may have one-to-one corresponding time segments, and a time interval may be provided between the time segments corresponding to adjacent charging segments, and if the time interval is greater than or equal to a first preset time, it indicates that there is no continuity between two charging segments, so that, on the premise that the time interval is greater than or equal to the first preset time, the embodiment of the present invention may first compare the first time segment and the second time segment with a second preset time, and if the first time segment and the second time segment are both less than the second preset time, it may be determined that the electric quantity data of the first charging segment and the second charging segment do not have integrity, and therefore they cannot be put into subsequent calculations, and should be deleted as invalid charging cycle data.
In another preferred embodiment of the present invention, the first preset time period is 5 minutes.
In a further preferred embodiment of the invention, the second predetermined period of time is 10 minutes.
in practical applications, the invalid charging cycle data deleted by the embodiment of the invention is electric quantity data with continuity, incompleteness or inaccuracy, and calculating the power battery charging data after deleting the invalid charging cycle data is helpful for responding and improving the obtained internal resistance data of the power battery and the accuracy of the capacity data of the power battery.
And 104, generating power battery charging data through the effective charging cycle data.
In a specific implementation, the power battery charging data of the embodiment of the invention includes internal resistance data of the power battery, and capacity data of the power battery.
In a preferred embodiment of the present invention, the value of the internal resistance data of the power battery is a positive number and cannot be an infinite number, and the value of the capacity data of the power battery is a positive number and is less than or equal to a preset capacity value.
In another preferred embodiment of the invention, the preset capacity value is 5 times the rated capacity value of the power battery.
In a specific implementation, when the value of the internal resistance data of the power battery is a negative number or an infinite number, the internal resistance data of the power battery may be replaced by an average value, and whether the value of the capacity data of the power battery is an abnormal value is determined by comparing whether the value of the capacity data of the power battery exceeds a preset capacity value, so that the obtained internal resistance data of the power battery and the accuracy of the capacity data of the power battery are further ensured.
By applying the embodiment of the invention in practical application, the electric quantity data of the power battery can be acquired in sections, invalid charging cycle data is screened from the acquired multiple sections of electric quantity data, the electric quantity data except the invalid charging cycle data is used as valid charging cycle data, and finally the power battery charging data is generated through the valid charging cycle data, so that the invalid charging cycle data is eliminated from the electric quantity data, the electric quantity data participating in calculation is ensured to be valid charging cycle data, and the accuracy of the internal resistance data of the power battery and the capacity of the power battery is further ensured.
Referring to fig. 2, a flowchart illustrating steps of another embodiment of the method for acquiring charging data of a power battery according to the present invention is shown, and specifically, the method may include the following steps:
in an embodiment of the present invention, the inaccurate charging cycle data may be queried and the effective charging cycle data may be generated by modifying the inaccurate effective charging cycle data as follows:
the first method is as follows: judging whether the initial charging stage or the final charging stage of the first charging section has discharging current; if so, judging the electric quantity data of the first charging section as inaccurate charging cycle data; deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the first charging section, and taking the electric quantity data of the charging middle stage of the first charging section as effective charging cycle data; judging whether the charging initial stage or the charging end stage of the second charging section has discharging current or not; if so, judging the electric quantity data of the second charging section as inaccurate charging cycle data; and deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the second charging section, and taking the electric quantity data of the charging middle stage of the second charging section as effective charging cycle data.
In a specific implementation, the charging section of the embodiment of the present invention may include a charging start stage, a charging intermediate stage, and a charging end stage, where the charging start stage may have corresponding charging start stage electric quantity data, the charging intermediate stage may have corresponding charging intermediate stage electric quantity data, and the charging end stage may have corresponding charging end stage electric quantity data.
In practical applications, for example, if it is detected that a discharging current occurs in a charging period at the initial stage or the final stage of charging, the embodiment of the present invention may determine the charge data of the charging period as inaccurate charging cycle data, where the inaccurate charging cycle data is charge data without authenticity, and at this time, if the discharging current in the intermediate stage of charging does not exceed a preset value, the charge data in the initial stage of charging and the charge data in the final stage of charging may be deleted, and the charge data in the intermediate stage of charging may be retained as valid charging cycle data.
The second method comprises the following steps: judging whether the time interval is smaller than a first preset time length or not; and if so, judging the first electric quantity data and the second electric quantity data as inaccurate charging cycle data, and combining the first electric quantity data and the second electric quantity data to be effective charging cycle data.
In a specific implementation, the plurality of charging segments of the embodiment of the present invention may have one-to-one corresponding time segments, and a time interval may be provided between the time segments corresponding to adjacent charging segments, and if the time interval is less than a first preset time period, it indicates that there is continuity between two charging segments, and the electric quantity data with continuity cannot be directly used as effective charging cycle data, at this time, the electric quantity data of the first charging segment and the electric quantity data of the first charging segment may be merged, and the merged data may be used as effective charging cycle data.
For example: two adjacent charging sections A1 and A2 are selected, the difference value between the ending time of A1 and the starting time of A2 is less than a first preset value by 5 minutes, continuity exists between the electric quantity data corresponding to A1 and the electric quantity data corresponding to A2, and effective charging cycle data are generated by combining the electric quantity data of A1 and A2.
And step 205, generating power battery charging data through the effective charging cycle data.
By applying the embodiment of the invention in practical application, the electric quantity data of the power battery can be acquired in sections, invalid charging cycle data and inaccurate electric cycle data are screened out from the acquired multiple sections of electric quantity data, the inaccurate electric cycle data are corrected to generate effective electric cycle data, the electric quantity data except the invalid charging cycle data are used as the effective electric cycle data, and finally the charging data of the power battery is generated through the effective charging cycle data, so that the invalid charging cycle data are eliminated from the electric quantity data, low-precision data which cannot be directly used for subsequent calculation are modified into effective charging cycle data which can participate in the subsequent calculation, and the accuracy of the internal resistance data of the power battery and the capacity of the power battery is further ensured.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 3, a block diagram of an embodiment of the apparatus for acquiring charging data of a power battery according to the present invention is shown, and specifically, the apparatus may include the following modules:
an obtaining module 301, configured to obtain first electric quantity data of a first charging section of the power battery and second electric quantity data of a second charging section of the power battery, respectively;
a searching module 302, configured to search invalid charging cycle data in the first electric quantity data and the second electric quantity data;
a deleting module 303, configured to delete the invalid charging cycle data, and use the electric quantity data of the deleted invalid charging cycle data as valid charging cycle data;
and a charging data generation module 304, configured to generate power battery charging data according to the effective charging cycle data.
In a preferred embodiment of the present invention, the lookup module 302 may include the following sub-modules:
the first judgment submodule is used for judging whether the discharge current data of the first charging section exceeds a preset value or not; if yes, a first judgment submodule is performed;
a first determination submodule configured to determine the first electric quantity data as invalid charging cycle data;
a second judgment submodule, configured to judge whether the discharge current data of the second charging section exceeds a preset value; if yes, a second stator judging module is carried out;
and the second judging submodule is used for judging the second electric quantity data as invalid charging cycle data.
In a preferred embodiment of the present invention, the lookup module 302 may include the following sub-modules:
the third judgment submodule is used for judging whether the time interval is smaller than the first preset time length or not; if not, calling a fourth judgment submodule;
the fourth judgment submodule is used for respectively judging whether the first time period and the second time period are smaller than a second preset time length; if the first time period is less than a second preset time period, calling a third judgment submodule; if the second time period is less than a second preset time period, calling a fourth judgment submodule;
a third determination submodule configured to determine the first electric quantity data as invalid charging cycle data;
and the fourth judging submodule is used for judging the second electric quantity data as invalid charging cycle data.
In a preferred embodiment of the present invention, the apparatus further comprises the following modules:
and the inaccurate charging cycle data searching module is used for searching inaccurate charging cycle data in the first electric quantity data and the second electric quantity data and generating effective charging cycle data by modifying the inaccurate charging cycle data.
In a preferred embodiment of the present invention, the inaccurate charging cycle data lookup module may further include the following sub-modules:
a fifth judging submodule, configured to judge whether the charging start stage or the charging end stage of the first charging stage has a discharging current; if yes, calling a fifth judgment submodule;
a fifth judging submodule, configured to judge the electric quantity data of the first charging stage as inaccurate charging cycle data;
the first deleting submodule is used for deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the first charging section and taking the electric quantity data of the charging middle stage of the first charging section as effective charging cycle data;
a sixth judging submodule, configured to judge whether the charge start stage or the charge end stage of the second charge stage has a discharge current; if yes, calling a sixth judgment submodule;
a sixth judgment submodule, configured to judge the electric quantity data of the second charging stage as inaccurate charging cycle data;
and the second deleting submodule is used for deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging tail stage of the second charging section, and taking the electric quantity data of the charging middle stage of the second charging section as effective charging cycle data.
In a preferred embodiment of the present invention, the inaccurate charging cycle data lookup module may further include the following sub-modules:
a seventh judging submodule, configured to judge whether the time interval is smaller than a first preset duration; if yes, calling a seventh judging submodule;
a seventh determining submodule, configured to determine the first electric quantity data and the second electric quantity data as inaccurate charging cycle data, and merge the first electric quantity data and the second electric quantity data as effective charging cycle data.
In a preferred embodiment of the present invention, the power battery charging data includes internal resistance data of the power battery, and capacity data of the power battery; wherein the internal resistance data is a positive number and is a non-infinite number; the capacity data is a positive number and is less than or equal to a preset capacity value.
By applying the embodiment of the invention in practical application, the electric quantity data of the power battery can be acquired in sections, invalid charging cycle data is screened from the acquired multiple sections of electric quantity data, the electric quantity data except the invalid charging cycle data is used as valid charging cycle data, and finally the power battery charging data is generated through the valid charging cycle data, so that the invalid charging cycle data is eliminated from the electric quantity data, the electric quantity data participating in calculation is ensured to be valid charging cycle data, and the accuracy of the internal resistance data of the power battery and the capacity of the power battery is further ensured.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The method for acquiring the charging data of the power battery and the device for acquiring the charging data of the power battery provided by the invention are described in detail, and specific examples are applied to explain the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. The method for acquiring the charging data of the power battery is applied to a charging system of the power battery, wherein the charging system comprises the power battery, and the method comprises the following steps:
respectively acquiring first electric quantity data of a first charging section and second electric quantity data of a second charging section of the power battery;
finding invalid charging cycle data in the first electric quantity data and the second electric quantity data;
deleting the invalid charging cycle data, and taking the electric quantity data of which the invalid charging cycle data is deleted as effective charging cycle data;
generating power battery charging data from the effective charging cycle data;
the first charging segment has a corresponding first time period, the second charging segment has a corresponding second time period, a time interval is provided between the first time period and the second time period, and the step of finding invalid charging cycle data in the first power quantity data and the second power quantity data further comprises:
judging whether the time interval is smaller than a first preset time length or not;
if not, respectively judging whether the first time period and the second time period are less than a second preset time length;
if the first time period is less than a second preset time period, judging the first electric quantity data as invalid charging cycle data;
and if the second time period is less than a second preset time period, judging the second electric quantity data as invalid charging cycle data.
2. The method of claim 1, wherein the first and second charging stages each comprise an intermediate charging stage having a discharge current with corresponding discharge current data, and wherein the step of finding invalid charging cycle data in the first and second charge data comprises:
judging whether the discharge current data of the first charging section exceeds a preset value;
if so, judging the first electric quantity data as invalid charging cycle data;
judging whether the discharge current data of the second charging section exceeds a preset value;
and if so, judging the second electric quantity data as invalid charging cycle data.
3. The method of claim 1, further comprising:
inaccurate charging cycle data is found out in the first and second electric quantity data, and effective charging cycle data is generated by modifying the inaccurate charging cycle data.
4. The method of claim 2 or 3, wherein the first and second charging stages comprise a charge start stage, a charge intermediate stage, and a charge end stage, the charge start stage, the charge intermediate stage, and the charge end stage having a one-to-one correspondence of charge start stage charge data, charge intermediate stage charge data, and charge end stage charge data, respectively, the steps of finding inaccurate charge cycle data in the first and second charge data and generating valid charge cycle data by modifying the inaccurate charge cycle data comprise:
judging whether the charging initial stage or the charging end stage of the first charging section has a discharging current;
if so, judging the electric quantity data of the first charging section as inaccurate charging cycle data;
deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the first charging section, and taking the electric quantity data of the charging middle stage of the first charging section as effective charging cycle data;
judging whether the charging initial stage or the charging end stage of the second charging section has a discharging current;
if so, judging the electric quantity data of the second charging section as inaccurate charging cycle data;
and deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the second charging section, and taking the electric quantity data of the charging middle stage of the second charging section as effective charging cycle data.
5. The method of claim 1 or 3, wherein the first charging session has a corresponding first time period, the second charging session has a corresponding second time period, there is a time interval between the first time period and the second time period, the steps of finding inaccurate charging cycle data in the first charge data and the second charge data, and generating valid charging cycle data by modifying the inaccurate charging cycle data further comprise:
judging whether the time interval is smaller than a first preset time length or not;
and if so, judging the first electric quantity data and the second electric quantity data as inaccurate charging cycle data, and combining the first electric quantity data and the second electric quantity data to be effective charging cycle data.
6. The method of claim 1, wherein the power battery charging data comprises internal resistance data of the power battery, and capacity data of the power battery; wherein the internal resistance data is a positive number and is a non-infinite number; the capacity data is a positive number and is less than or equal to a preset capacity value.
7. An acquisition device for charging data of a power battery is applied to a charging system of the power battery, wherein the charging system comprises the power battery, and the device comprises:
the acquisition module is used for respectively acquiring first electric quantity data of a first charging section and second electric quantity data of a second charging section of the power battery;
the searching module is used for searching invalid charging cycle data in the first electric quantity data and the second electric quantity data;
the deleting module is used for deleting the invalid charging cycle data and taking the electric quantity data of the deleted invalid charging cycle data as effective charging cycle data;
the charging data generation module is used for generating power battery charging data through the effective charging cycle data;
the first charging segment has a corresponding first time period, the second charging segment has a corresponding second time period, and a time interval is provided between the first time period and the second time period, and the searching module further comprises:
the third judgment submodule is used for judging whether the time interval is smaller than the first preset time length or not; if not, calling a fourth judgment submodule;
the fourth judgment submodule is used for respectively judging whether the first time period and the second time period are smaller than a second preset time length; if the first time period is less than a second preset time period, calling a third judgment submodule; if the second time period is less than a second preset time period, calling a fourth judgment submodule;
a third determination submodule configured to determine the first electric quantity data as invalid charging cycle data;
and the fourth judging submodule is used for judging the second electric quantity data as invalid charging cycle data.
8. The apparatus of claim 7, wherein the first charging segment and the second charging segment each comprise an intermediate charging phase having a discharging current with corresponding discharging current data, the lookup module comprising:
the first judgment submodule is used for judging whether the discharge current data of the first charging section exceeds a preset value or not; if yes, a first judgment submodule is performed;
a first determination submodule configured to determine the first electric quantity data as invalid charging cycle data;
a second judgment submodule, configured to judge whether the discharge current data of the second charging section exceeds a preset value; if yes, a second stator judging module is carried out;
and the second judging submodule is used for judging the second electric quantity data as invalid charging cycle data.
9. The apparatus of claim 7, further comprising:
and the inaccurate charging cycle data searching module is used for searching inaccurate charging cycle data in the first electric quantity data and the second electric quantity data and generating effective charging cycle data by modifying the inaccurate charging cycle data.
10. The apparatus of claim 8 or 9, wherein the first charging segment and the second charging segment comprise a charging start phase, a charging middle phase, and a charging end phase, the charging start phase, the charging middle phase, and the charging end phase respectively have a one-to-one correspondence of charging start phase power data, charging middle phase power data, and charging end phase power data, and the inaccurate charging cycle data lookup module comprises:
a fifth judging submodule, configured to judge whether the charging start stage or the charging end stage of the first charging stage has a discharging current; if yes, calling a fifth judgment submodule;
a fifth judging submodule, configured to judge the electric quantity data of the first charging stage as inaccurate charging cycle data;
the first deleting submodule is used for deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging end stage of the first charging section and taking the electric quantity data of the charging middle stage of the first charging section as effective charging cycle data;
a sixth judging submodule, configured to judge whether the charge start stage or the charge end stage of the second charge stage has a discharge current; if yes, calling a sixth judgment submodule;
a sixth judgment submodule, configured to judge the electric quantity data of the second charging stage as inaccurate charging cycle data;
and the second deleting submodule is used for deleting the electric quantity data of the charging initial stage and the electric quantity data of the charging tail stage of the second charging section, and taking the electric quantity data of the charging middle stage of the second charging section as effective charging cycle data.
11. The apparatus of claim 7 or 9, wherein the first charging segment has a corresponding first time period, wherein the second charging segment has a corresponding second time period, wherein there is a time interval between the first time period and the second time period, and wherein the inaccurate charging cycle data lookup module further comprises:
a seventh judging submodule, configured to judge whether the time interval is smaller than a first preset duration; if yes, calling a seventh judging submodule;
a seventh determining submodule, configured to determine the first electric quantity data and the second electric quantity data as inaccurate charging cycle data, and merge the first electric quantity data and the second electric quantity data as effective charging cycle data.
12. The apparatus of claim 7, wherein the power battery charging data comprises internal resistance data of the power battery, and capacity data of the power battery; wherein the internal resistance data is a positive number and is a non-infinite number; the capacity data is a positive number and is less than or equal to a preset capacity value.
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