CN116660765A - Method, device, equipment and storage medium for checking validity of voltage sampling - Google Patents
Method, device, equipment and storage medium for checking validity of voltage sampling Download PDFInfo
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- CN116660765A CN116660765A CN202310632614.0A CN202310632614A CN116660765A CN 116660765 A CN116660765 A CN 116660765A CN 202310632614 A CN202310632614 A CN 202310632614A CN 116660765 A CN116660765 A CN 116660765A
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- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000005070 sampling Methods 0.000 title claims abstract description 57
- 230000008859 change Effects 0.000 claims abstract description 82
- 238000004590 computer program Methods 0.000 claims description 7
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 27
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000007726 management method Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
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- 238000013024 troubleshooting Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The embodiment of the application provides a method, a device, equipment and a storage medium for checking the validity of voltage sampling, wherein the method comprises the following steps: acquiring an ampere-hour integral accumulated value of the current; acquiring a first voltage variation value of the single battery according to the ampere-hour integral accumulated value of the current; detecting the voltage of the single battery to obtain a second voltage variation value; and verifying the voltage sampling effectiveness of the single battery according to the first voltage variation value and the second voltage variation value. In the actual detection process, the first voltage change value and the second voltage change value are obtained through different methods, the validity of the voltage parameter is checked by utilizing the current parameter, and the validity of the voltage sampling can be confirmed.
Description
Technical Field
The application relates to the technical field of new energy automobiles, in particular to a voltage sampling effectiveness test method, a device, electronic equipment and a computer readable storage medium.
Background
The power battery system provides power for the new energy automobile, so that the health state of the power battery system is related to the working state of the whole new energy automobile. The new energy automobile is also provided with a battery management system, is a controller of the battery system, is used for detecting the states of all components in the power battery system, and comprises: the single voltage of the battery, the total voltage of the battery, the current of the battery and the internal and external temperatures of the power battery system; the battery management system is also used to control and coordinate the operation of the various components within the power battery system. In order to ensure the normal operation of the new energy automobile, it is necessary to ensure that a plurality of parameters detected by the battery management system are accurate, and the battery voltage is taken as an important parameter, but a method for checking the validity of the battery voltage is lacking in the prior art.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method, an apparatus, an electronic device, and a computer readable storage medium for checking the validity of a single battery, and quickly finding an abnormal voltage in a sampling process, so as to perform further troubleshooting.
In a first aspect, an embodiment of the present application provides a method for checking validity of voltage sampling, including: acquiring an ampere-hour integral accumulated value of the current;
acquiring a first voltage variation value of the single battery according to the ampere-hour integral accumulated value of the current;
detecting the voltage of the single battery to obtain a second voltage variation value;
and verifying the voltage sampling effectiveness of the single battery according to the first voltage variation value and the second voltage variation value.
In the implementation process, the first voltage change value of the single battery is obtained by carrying out ampere-hour integration on the current, the voltage of the single battery is detected, the second voltage change value is obtained, and the validity of voltage sampling is checked according to the first voltage change value and the second voltage change value. Since the voltage value and the current value are obtained by different methods in the actual detection process, the validity of the voltage parameter is checked by using the current parameter, and the validity of the voltage sampling can be confirmed.
Further, after the pair obtains the first voltage variation value of the single battery according to the ampere-hour integral accumulated value of the current, the pair further comprises:
judging whether the first voltage change value is larger than a first threshold value or not;
if yes, detecting the voltage of the single battery to obtain the second voltage variation value;
if not, continuing to acquire the ampere-hour integral accumulated value of the current.
In the implementation process, the first voltage change value reflects the actual voltage of the current single battery to a certain extent, the first voltage change value of the single battery is detected before the voltage of the single battery is detected, if the first voltage change value is smaller than the first threshold value, the first voltage change value is not in a range which can be used for identifying the sampling effectiveness of the battery, the current ampere-hour integral value can be continuously obtained at the moment, the time for obtaining the second voltage change value is saved, and the detection efficiency is improved.
Further, after the current ampere-hour integral cumulative value is obtained, the method further comprises:
judging whether the ampere-hour integral accumulated value of the current is larger than a second threshold value or not;
if yes, acquiring a first voltage change value of the single battery according to the ampere-hour integral accumulated value of the current;
if not, continuing to acquire the ampere-hour integral accumulated value of the current.
In the implementation process, the first voltage change value reflects the actual voltage of the current single battery to a certain extent, and when the current ampere-hour integral accumulated value is larger than the second threshold value, the first voltage change value can be calculated more accurately according to the current parameter at the moment, so that the judgment accuracy of the voltage sampling effectiveness of the single battery is improved.
Further, the obtaining the voltage sampling effectiveness of the single battery according to the first voltage variation value and the second voltage variation value includes:
and acquiring the voltage sampling effectiveness of the single battery according to the difference value of the first voltage variation value and the second voltage variation value.
In the implementation process, since the first voltage variation value reflects the actual voltage value of the single battery to a certain extent, the voltage sampling effectiveness of the single battery can be obtained according to the difference value of the first voltage variation value and the second voltage variation value.
Further, the obtaining the voltage sampling effectiveness of the single battery according to the difference value of the first voltage variation value and the second voltage variation value includes:
and judging whether the quotient of the difference value and the first voltage change value exceeds a preset threshold value, and if so, judging that the voltage sampling of the single battery fails.
In the implementation process, since the first voltage variation value reflects the actual voltage value of the single battery to a certain extent, the first voltage variation value obtained through ampere-hour integration has an error, a preset threshold is set, whether the quotient of the difference value and the first voltage variation value exceeds the preset threshold is judged, and when the quotient of the difference value and the first voltage variation value exceeds the preset threshold, the voltage sampling of the single battery fails. Based on the embodiment, the error generated in the process of acquiring the first voltage change value through ampere-hour integration can be overcome, and the effectiveness of single battery voltage sampling can be accurately reflected through the first voltage change value.
Further, the determining whether the first voltage variation value is greater than a first threshold value includes:
and judging whether the first voltage change value is larger than a preset proportion of rated capacity of the single battery.
In the implementation process, since the first voltage change value is obtained by calculating according to the ampere-hour integral accumulated value of the current, the first voltage change value has a certain error, and the subsequent inspection step is continued when the first voltage change value is larger than the rated capacity of the single battery, so that the error of the first voltage change value calculated according to the integral accumulated value can be reduced to a certain extent, and the accuracy of the validity inspection of the single battery voltage sampling is improved.
Further, the obtaining a first voltage variation value according to the ampere-hour integral accumulated value of the current includes:
and acquiring the first voltage change value according to the ampere-hour integral accumulated value of the current and a preset ampere-hour integral-voltmeter.
In the implementation process, the first voltage value can be obtained by using the current parameter through a preset model, and the first voltage value and the second voltage value are obtained through different methods, so that the first voltage value can be used for detecting the accuracy of the voltage sampling of the single battery.
In a second aspect, an embodiment of the present application provides a battery voltage sampling validity checking apparatus, including:
the current ampere-hour integral accumulated value acquisition module is used for acquiring a current ampere-hour integral accumulated value;
the first voltage change value acquisition module is used for acquiring a first voltage change value of the single battery according to the ampere-hour integral accumulated value of the current;
the second voltage change value acquisition module is used for detecting the voltage of the single battery to obtain a second voltage change value;
and the validity checking module is used for checking the voltage sampling validity of the single battery according to the first voltage variation value and the second voltage variation value.
In the implementation process, the first voltage change value acquisition module obtains the first voltage change value of the single battery by carrying out ampere-hour integration on the current, the second voltage change value acquisition module detects the voltage of the single battery to obtain the second voltage change value, and the validity checking module checks the validity of voltage sampling according to the first voltage change value and the second voltage change value. Since the voltage value and the current value are obtained by different methods in the actual detection process, the validity of the voltage parameter is checked by using the current parameter, and the validity of the voltage sampling can be confirmed.
In a third aspect, an electronic device provided in an embodiment of the present application includes: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspects when the computer program is executed.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored, which when executed on a computer, cause the computer to perform the method according to any one of the first aspects.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the techniques of the disclosure.
And can be implemented in accordance with the teachings of the specification, the following detailed description of the preferred embodiments of the application, taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for verifying validity of voltage sampling according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a battery voltage sampling validity checking device according to an embodiment of the present application;
FIG. 3 is an ampere-hour integral-voltage representation provided by an embodiment of the present application;
FIG. 4 is an ampere-hour integral-voltage representation provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1, the embodiment of the application provides a voltage sampling validity checking method, which is applied to a battery management system (Battery Management System, BMS), wherein the BMS is a controller of a high-voltage power storage battery and is used for detecting states of various components in the high-voltage power storage battery, including parameters such as battery cell voltage, voltage of a module, total voltage of a battery, current, temperature, external temperature of a battery pack and the like; and is also used for controlling and coordinating various operations of the internal components of the high-voltage power storage battery. The method comprises the following steps:
s1: acquiring an ampere-hour integral accumulated value of the current;
specifically, the formula of ampere-hour integration is as follows:
the SOC is the ampere-hour integral of the current at the current moment; SOC (State of Charge) 0 The battery capacity at the initial time; c (C) N Is the rated capacity of the battery; η is the charging efficiency; wherein 0 represents the starting time of ampere-hour integration, and t is the current time.
S2: acquiring a first voltage variation value of the single battery according to the ampere-hour integral accumulated value of the current;
s3: detecting the voltage of the single battery to obtain a second voltage variation value;
wherein the second voltage variation value is a sampled voltage obtained by the battery management system based on any existing sampling technique. The second voltage change value may be obtained by a sensor, for example.
S4: the validity of the voltage sample is checked according to the first voltage variation value and the second voltage variation value.
In the implementation process, the first voltage change value of the single battery is obtained by carrying out ampere-hour integration on the current, the voltage of the single battery is detected, the second voltage change value is obtained, and the validity of voltage sampling is checked according to the first voltage change value and the second voltage change value. Since the voltage value and the current value are obtained by different methods in the actual detection process, the validity of the voltage parameter is checked by using the current parameter, and the validity of the voltage sampling can be confirmed.
In some embodiments, after obtaining the first voltage variation value of the unit cell according to the ampere-hour integral accumulated value of the current, the method further comprises:
judging whether the first voltage variation value is larger than a first threshold value or not;
in some embodiments, the first threshold is 30mv.
If yes, detecting the voltage of the single battery to obtain a second voltage variation value;
if not, continuing to acquire the ampere-hour integral accumulated value of the current.
That is, when the first voltage variation value is smaller than the first threshold value, ampere-hour integration is continued.
In the implementation process, the first voltage change value reflects the actual voltage of the current single battery to a certain extent, the first voltage change value of the single battery is detected before the voltage of the single battery is detected, if the first voltage change value is smaller than the first threshold value, the first voltage change value is not in a range which can be used for identifying the sampling effectiveness of the battery, the current ampere-hour integral value can be continuously obtained at the moment, the time for obtaining the second voltage change value is saved, and the detection efficiency is improved.
In some embodiments, after obtaining the ampere-hour integral cumulative value of the current, further comprising:
judging whether the ampere-hour integral accumulated value of the current is larger than a second threshold value or not;
in some embodiments, the second threshold is five percent of the battery capacity. If yes, acquiring a first voltage variation value of the single battery according to the ampere-hour integral accumulated value of the current;
if not, continuing to acquire the ampere-hour integral accumulated value of the current.
In the implementation process, the first voltage change value reflects the actual voltage of the current single battery to a certain extent, and when the current ampere-hour integral accumulated value is larger than the second threshold value, the first voltage change value can be calculated more accurately according to the current parameter at the moment, so that the judgment accuracy of the voltage sampling effectiveness of the single battery is improved.
In some embodiments, verifying the validity of the voltage sample based on the first voltage variation value and the second voltage variation value comprises:
and acquiring the voltage sampling effectiveness of the single battery according to the difference value of the first voltage variation value and the second voltage variation value.
In the implementation process, since the first voltage variation value reflects the actual voltage value of the single battery to a certain extent, the voltage sampling effectiveness of the single battery can be obtained according to the difference value of the first voltage variation value and the second voltage variation value.
In some embodiments, verifying the validity of the voltage sample based on the first voltage variation value and the second voltage variation value comprises:
and obtaining the voltage sampling effectiveness of the single battery according to the quotient of the first voltage variation value and the second voltage variation value.
In some embodiments, obtaining the voltage sampling effectiveness of the unit cell according to the difference value of the first voltage variation value and the second voltage variation value includes:
and judging whether the quotient of the difference value and the first voltage change value exceeds a preset threshold value, and if so, judging that the voltage sampling of the single battery fails.
In the implementation process, since the first voltage variation value reflects the actual voltage value of the single battery to a certain extent, the first voltage variation value obtained through ampere-hour integration has an error, a preset threshold is set, whether the quotient of the difference value and the first voltage variation value exceeds the preset threshold is judged, and when the quotient of the difference value and the first voltage variation value exceeds the preset threshold, the voltage sampling of the single battery fails. Based on the embodiment, the error generated in the process of acquiring the first voltage change value through ampere-hour integration can be overcome, and the effectiveness of single battery voltage sampling can be accurately reflected through the first voltage change value.
In some embodiments, determining whether the first voltage change value is greater than a first threshold comprises:
and judging whether the first voltage variation value is larger than a preset proportion of rated capacity of the single battery.
In the implementation process, since the first voltage change value is obtained by calculating according to the ampere-hour integral accumulated value of the current, the first voltage change value has a certain error, and the subsequent inspection step is continued when the first voltage change value is larger than the rated capacity of the single battery, so that the error of the first voltage change value calculated according to the integral accumulated value can be reduced to a certain extent, and the accuracy of the validity inspection of the single battery voltage sampling is improved.
In some embodiments, obtaining the first voltage variation value from the ampere-hour integral cumulative value of the current includes:
and obtaining a first voltage change value according to the ampere-hour integral accumulated value of the current and a preset ampere-hour integral-voltmeter.
For example, referring to fig. 2, an ampere-hour integral-voltage meter of a certain ternary battery, referring to fig. 3, an ampere-hour integral-voltage meter of a certain LFP battery is used to obtain a percentage of a charge capacity to a total capacity of the battery through an ampere-hour integral accumulation value, and a corresponding first voltage change value is obtained in the ampere-hour integral-voltage meter based on the percentage.
The ampere-hour integral-voltmeter is calibrated in advance.
In the implementation process, the first voltage value can be obtained by using the current parameter through a preset model, and the first voltage value and the second voltage value are obtained through different methods, so that the first voltage value can be used for detecting the accuracy of the voltage sampling of the single battery.
In some embodiments, after S4, the current ampere-hour integral accumulation value is cleared and the current ampere-hour integral is restarted.
In some embodiments, after the single voltage is diagnosed unreasonably, namely after the voltage sampling failure is determined, the BMS reports the fault, and the power-down limp-home treatment is performed during driving; the charging condition prohibits charging.
Example 2
Referring to fig. 2, an embodiment of the present application provides a battery voltage sampling validity checking apparatus, including:
the current ampere-hour integral accumulated value acquisition module 1 is used for acquiring a current ampere-hour integral accumulated value;
the first voltage change value acquisition module 2 is used for acquiring a first voltage change value of the single battery according to the ampere-hour integral accumulated value of the current;
the second voltage variation value obtaining module 3 is configured to detect a voltage of the single battery to obtain a second voltage variation value;
and the validity checking module 4 is used for checking the validity of the voltage sampling according to the first voltage change value and the second voltage change value.
In the implementation process, the first voltage change value acquisition module obtains the first voltage change value of the single battery by carrying out ampere-hour integration on the current, the second voltage change value acquisition module detects the voltage of the single battery to obtain the second voltage change value, and the validity checking module checks the validity of voltage sampling according to the first voltage change value and the second voltage change value. Since the voltage value and the current value are obtained by different methods in the actual detection process, the validity of the voltage parameter is checked by using the current parameter, and the validity of the voltage sampling can be confirmed.
In some embodiments, the apparatus further comprises: the judging module is used for judging whether the first voltage change value is larger than a first threshold value or not;
the second voltage variation value variation module 3 is further configured to detect a voltage of the unit cell when the determination result of the determination module is yes, so as to obtain a second voltage variation value;
the current ampere-hour integral accumulated value obtaining module 1 is further configured to continuously obtain the current ampere-hour integral accumulated value when the judgment result of the judgment module is no.
In some embodiments, the determining module is further configured to determine whether the ampere-hour integral cumulative value of the current is greater than a second threshold;
the first voltage change value change module 2 is further used for obtaining a first voltage change value of the single battery according to the ampere-hour integral accumulated value of the current;
the current ampere-hour integral accumulated value obtaining module 1 is further configured to continuously obtain the current ampere-hour integral accumulated value when the judgment result of the judgment module is no.
In some embodiments, the validity checking module 4 is further configured to obtain the voltage sampling validity of the unit cell according to the difference between the first voltage variation value and the second voltage variation value.
In some embodiments, the validity checking module 4 is further configured to determine whether the quotient of the difference value and the first voltage variation value exceeds a preset threshold value, and if so, the voltage sampling of the unit cell fails.
In some embodiments, the validity checking module 4 is further configured to determine whether the first voltage variation value is greater than a preset proportion of the rated capacity of the battery cell.
In some embodiments, the first voltage variation value obtaining module 2 is further configured to obtain the first voltage variation value according to the ampere-hour integral accumulated value and a preset ampere-hour integral-voltmeter.
The application further provides an electronic device, please refer to fig. 5, and fig. 5 is a block diagram of an electronic device according to an embodiment of the application. The electronic device may include a processor 51, a communication interface 52, a memory 53, and at least one communication bus 54. Wherein the communication bus 54 is used to enable direct connection communication of these components. The communication interface 52 of the electronic device in the embodiment of the present application is used for performing signaling or data communication with other node devices. The processor 51 may be an integrated circuit chip with signal processing capabilities.
The processor 51 may be a general-purpose processor including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. The general purpose processor may be a microprocessor or the processor 51 may be any conventional processor or the like.
The Memory 53 may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc. The memory 53 has stored therein computer readable instructions which, when executed by the processor 51, can perform the steps involved in the above-described method embodiments.
Optionally, the electronic device may further include a storage controller, an input-output unit.
The memory 53, the memory controller, the processor 51, the peripheral interface, and the input/output unit are electrically connected directly or indirectly to each other, so as to realize data transmission or interaction. For example, the components may be electrically coupled to each other via one or more communication buses 54. The processor 51 is adapted to execute executable modules stored in the memory 53, such as software functional modules or computer programs comprised by the electronic device.
The input-output unit is used for providing the user with the creation task and creating the starting selectable period or the preset execution time for the task so as to realize the interaction between the user and the server. The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.
It will be appreciated that the configuration shown in fig. 5 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 5, or have a different configuration than shown in fig. 5. The components shown in fig. 5 may be implemented in hardware, software, or a combination thereof.
The embodiment of the application also provides a computer readable storage medium, on which instructions are stored, which when executed on a computer, implement the method of the method embodiment when the computer program is executed by a processor, and in order to avoid repetition, no further description is given here.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are 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. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method for verifying the validity of voltage samples, comprising:
acquiring an ampere-hour integral accumulated value of the current;
obtaining a first voltage variation value of the single battery according to the ampere-hour integral accumulated value of the current;
detecting the voltage of the single battery to obtain a second voltage variation value;
and verifying the voltage sampling effectiveness of the single battery according to the first voltage variation value and the second voltage variation value.
2. The method according to claim 1, further comprising, after the obtaining the first voltage change value of the unit cell from the ampere-hour integral accumulated value of the current, the step of:
judging whether the first voltage change value is larger than a first threshold value or not;
if yes, detecting the voltage of the single battery to obtain the second voltage variation value;
if not, continuing to acquire the ampere-hour integral accumulated value of the current.
3. The method of claim 2, further comprising, after the obtaining the ampere-hour integral cumulative value of the current:
judging whether the ampere-hour integral accumulated value of the current is larger than a second threshold value or not;
if yes, acquiring a first voltage change value of the single battery according to the ampere-hour integral accumulated value of the current;
if not, continuing to acquire the ampere-hour integral accumulated value of the current.
4. The method according to claim 2, wherein the obtaining the voltage sampling validity of the unit cell according to the first voltage variation value and the second voltage variation value includes:
and acquiring the voltage sampling effectiveness of the single battery according to the difference value of the first voltage variation value and the second voltage variation value.
5. The method according to claim 4, wherein the step of obtaining the voltage sampling effectiveness of the unit cell based on the difference between the first voltage variation value and the second voltage variation value includes:
and judging whether the quotient of the difference value and the first voltage change value exceeds a preset threshold value, and if so, judging that the voltage sampling of the single battery fails.
6. The method of claim 2, wherein said determining whether the first voltage change value is greater than a first threshold value comprises:
and judging whether the first voltage change value is larger than a preset proportion of rated capacity of the single battery.
7. The method for verifying of the validity of a voltage sample of any one of claims 1-6, wherein said obtaining a first voltage change value from said current ampere-hour integral running total comprises:
and acquiring the first voltage change value according to the ampere-hour integral accumulated value of the current and a preset ampere-hour integral-voltmeter.
8. A battery voltage sampling validity checking device, characterized by comprising:
the current ampere-hour integral accumulated value acquisition module is used for acquiring a current ampere-hour integral accumulated value;
the first voltage change value acquisition module is used for acquiring a first voltage change value of the single battery according to the ampere-hour integral accumulated value of the current;
the second voltage change value acquisition module is used for detecting the voltage of the single battery to obtain a second voltage change value;
and the validity checking module is used for checking the voltage sampling validity of the single battery according to the first voltage variation value and the second voltage variation value.
9. An electronic device, comprising: memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of claims 1-7 when the computer program is executed.
10. A computer readable storage medium having instructions stored thereon which, when run on a computer, cause the computer to perform the method of any of claims 1-7.
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