CN116930803A - Battery life test method, device, equipment and storage medium - Google Patents
Battery life test method, device, equipment and storage medium Download PDFInfo
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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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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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
- G01R31/387—Determining ampere-hour charge capacity or SoC
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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
According to the battery life test method, the battery is controlled to perform charge-discharge cycle test by acquiring the initial capacity of the battery and the target test remaining capacity interval, when the charge-discharge cycle test times reach the preset charge-discharge test times threshold value, the charge-discharge cycle test is ended, the current capacity of the battery is determined, after the battery capacity test times are added by 1, the current capacity of the battery is determined to be the new initial capacity of the battery, the new charge-discharge cycle test is performed, and the test is ended until the battery capacity test times reach the preset capacity test times threshold value; according to the method, the charge-discharge cycle test is carried out in the range of the set target test residual electric quantity, the service condition of an actual battery is effectively simulated, the actual test and application scenes are fitted, the test result is more accurate, and on the other hand, the range is set to test in the range of the whole capacity of the battery compared with the conventional scheme, so that the test time is shortened, and the test efficiency is improved.
Description
Technical Field
The present application relates to the field of battery control, and in particular, to a method, apparatus, device, and storage medium for testing battery life.
Background
The fuel cell pile is a device capable of converting chemical energy contained in hydrogen and oxygen into electric energy to be output outwards, a reaction product is water, and the fuel cell automobile using the fuel cell pile system as a power source has the advantages of environmental protection and high efficiency. When a fuel cell automobile enters an idle running working condition, the power requirement of the whole automobile on the fuel cell electric pile is required to realize the zero power output of the whole automobile, and in the existing control process, when the rated power of the fuel cell electric pile is higher, the fuel cell electric pile has to be kept in a high-voltage open-circuit state or even in a shutdown state, and irreversible damage can be caused to the fuel cell under the high voltage, and the service life of the fuel cell can be reduced after repeated power-up.
In the existing battery life test process, for example, in the battery life test method, device and readable storage medium of CN112305439B, the initial capacity of the battery and the preset capacity of the battery after attenuation are first determined, then charge and discharge operations are performed for several times according to the cut-off voltage corresponding to the SOC at 0% and 100%, after the battery is less than or equal to the preset capacity of the battery, the cycle experiment is stopped, and the life of the battery is determined according to the number of charge and discharge times, in practical application, there are various start and stop possibilities when the user charges or discharges the battery, and the test method cannot fit the practical application situation.
Disclosure of Invention
The embodiment of the application aims to provide a battery life test method, device, equipment and storage medium, which are used for solving the problem that the conventional battery life test cannot be accurately attached to an actual application scene.
The application provides a battery life test method, which comprises the following steps: acquiring an initial capacity of a battery and a target test residual electric quantity interval; according to the initial capacity of the battery and the target test residual electric quantity interval, controlling the battery to carry out charge-discharge cycle test, and monitoring the charge-discharge cycle test times; when the charge-discharge cycle test times reach a preset charge-discharge test times threshold value, ending the charge-discharge cycle test, determining the current capacity of the battery, adding 1 to the battery capacity test times, wherein the initial value of the battery capacity test times is 0; and determining the current capacity of the battery as a new initial capacity of the battery, performing a new charge-discharge cycle test according to a target test residual capacity interval and the new initial capacity of the battery, monitoring the test times of the capacity of the battery, and ending the test until the test times of the capacity of the battery reach a preset capacity test times threshold value so as to test the service life of the battery.
In an embodiment of the present application, controlling the battery to perform the charge-discharge cycle test according to the initial capacity of the battery and the target test remaining capacity interval includes: determining a charge interception threshold value of the residual electric quantity and a discharge interception threshold value of the residual electric quantity according to the target test residual electric quantity interval; controlling the battery to be subjected to test charging by using a second preset current until the current residual capacity of the battery reaches a residual capacity charging cut-off threshold value; controlling to test and discharge the battery with a third preset current until the current residual capacity of the battery reaches a residual capacity discharge cut-off threshold value, and adding 1 to the number of charge and discharge cycle tests, wherein the initial value of the charge and discharge cycle test is 0; and ending the charge-discharge cycle test when the charge-discharge cycle test times reach a preset charge-discharge test time threshold value.
In an embodiment of the application, before controlling the battery to be charged with the second preset current, the battery life testing method further includes: and responding to the charge-discharge cycle test request, controlling the battery to perform preliminary discharge or preliminary discharge at a first preset current, monitoring the current residual capacity of the battery under the initial capacity of the battery, and ending the preliminary discharge or preliminary discharge when the residual capacity of the battery reaches the initial residual capacity test threshold.
In an embodiment of the application, before controlling the battery to perform preliminary discharge with the first preset current and monitoring the current remaining capacity of the battery under the initial capacity of the battery, the battery life test method further includes: detecting the current temperature of the battery; and controlling the current temperature of the battery to start a charge-discharge cycle test when the current temperature is consistent with a preset test temperature.
In an embodiment of the application, before controlling the test discharge of the battery with the third preset current, the battery life test method further includes: and if the current temperature of the battery is greater than the preset test temperature, standing the battery until the current temperature of the battery is consistent with the preset test temperature, and controlling the battery to be subjected to test discharge by a third preset current.
In an embodiment of the present application, a method for determining a current remaining capacity of a battery includes: acquiring a current value of the current battery charging or discharging and the electrifying time of the charging or discharging; integrating the current value and the energizing time to obtain the current electric quantity of the battery; and determining the current residual capacity of the battery based on the ratio of the current capacity of the battery to the initial capacity of the battery.
In an embodiment of the present application, after controlling the battery to perform the charge-discharge cycle test and monitoring the number of charge-discharge cycle tests, the battery life test method further includes: and if the charge-discharge cycle test times do not reach the preset charge-discharge test times threshold, regenerating a charge-discharge cycle test request, and standing the battery until the current temperature of the battery is consistent with the preset test temperature, and restarting the charge-discharge cycle test.
The embodiment of the application also provides a battery life testing device, which comprises: the test parameter acquisition module is used for acquiring initial capacity of the battery and a target test residual electric quantity interval; the charge-discharge cycle test module is used for controlling the battery to carry out charge-discharge cycle test according to the initial capacity of the battery and the target test residual electric quantity interval and monitoring the charge-discharge cycle test times; when the charge-discharge cycle test times reach a preset charge-discharge test time threshold value, ending the charge-discharge cycle test; and the battery capacity testing module is used for determining the current capacity of the battery after the charge-discharge cycle test is finished, adding 1 to the battery capacity test times, determining the current capacity of the battery as the new initial capacity of the battery, carrying out the new charge-discharge cycle test according to the target test residual capacity interval and the new initial capacity of the battery, monitoring the battery capacity test times, and ending the test until the battery capacity test times reach the preset capacity test times threshold value.
The embodiment of the application also provides electronic equipment, which comprises: one or more processors; a storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the battery life testing method of any of the above embodiments.
Embodiments of the present application also provide a computer-readable storage medium having stored thereon computer-readable instructions, which when executed by a processor of a computer, cause the computer to perform the battery life test method according to any of the above embodiments.
According to the battery life test method, the battery is controlled to perform charge-discharge cycle test by acquiring the initial capacity of the battery and the target test remaining capacity interval, when the charge-discharge cycle test times reach the preset charge-discharge test times threshold value, the charge-discharge cycle test is ended, the current capacity of the battery is determined, after the battery capacity test times are added by 1, the current capacity of the battery is determined to be the new initial capacity of the battery, the new charge-discharge cycle test is performed, and the test is ended until the battery capacity test times reach the preset capacity test times threshold value; according to the method, the charge-discharge cycle test is carried out in the range of the set target test residual electric quantity, the service condition of an actual battery is effectively simulated, the actual test and application scenes are fitted, the test result is more accurate, and on the other hand, the range is set to test in the range of the whole capacity of the battery compared with the conventional scheme, so that the test time is shortened, and the test efficiency is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:
FIG. 1 is a schematic diagram of an exemplary system architecture shown in accordance with an exemplary embodiment of the present application;
FIG. 2 is a flow chart of a battery life test method according to an exemplary embodiment of the present application;
FIG. 3 is a flow chart of a charge-discharge cycle test method according to an exemplary embodiment of the present application;
FIG. 4 is a schematic diagram of a specific battery life test method according to an exemplary embodiment of the present application;
FIG. 5 is a schematic diagram of a battery life testing device according to an exemplary embodiment of the present application;
fig. 6 is a schematic diagram of a computer system of an electronic device according to an exemplary embodiment of the present application.
Detailed Description
Further advantages and effects of the present application will become readily apparent to those skilled in the art from the present disclosure, by referring to the following drawings and specific embodiments. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the illustrations, not according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
In the following description, numerous details are set forth in order to provide a more thorough explanation of embodiments of the present application, it will be apparent, however, to one skilled in the art that embodiments of the present application may be practiced without these specific details, in other embodiments, well-known structures and devices are shown in block diagram form, rather than in detail, in order to avoid obscuring the embodiments of the present application.
The description of the association relationship of the association object mentioned in the present application means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
Firstly, it should be noted that, the SOC (battery remaining power) estimation method includes an open circuit voltage method, an ampere-hour integration method, an internal resistance method, a neural network and a kalman filtering method, the open circuit voltage method requires to stand the battery pack for a long time because of the open circuit voltage to be expected, the internal resistance method has difficulty in estimating the internal resistance, and is also difficult to implement in hardware, the neural network and the kalman filtering method have high cost when applied in the battery management system because of the difficulty in system setting, and have no advantage, so that ampere-hour integration is often adopted because of simplicity and effectiveness compared with the open circuit voltage method, the internal resistance method, the neural network and the kalman filtering method.
The application can also provide the beneficial effects that: real-time electric quantity prediction is carried out based on time integration of current and time, and the current state of charge of the battery is determined based on the real-time electric quantity and the measured battery capacity, so that compared with a voltage value, the current state of charge of the battery can be more accurately embodied, and more accurate data sources can be provided for a test flow; the test temperature is ensured in the test process, so that test data are more stable, and further more accurate battery life prediction and related data processing are performed, and data deviation caused by a test environment to the test is avoided.
FIG. 1 is a schematic diagram of an exemplary system architecture shown in an exemplary embodiment of the application.
Referring to fig. 1, a system architecture may include a battery 101 and a computer device 102. The computer device 102 is configured to obtain a target test remaining capacity interval, control the battery to perform a charge-discharge cycle test according to the initial battery capacity and the target test remaining capacity interval, monitor a charge-discharge cycle test frequency, end the charge-discharge cycle test when the charge-discharge cycle test frequency reaches a preset charge-discharge test frequency threshold, determine a current battery capacity, add 1 to the battery capacity test frequency, determine the initial value of the battery capacity test frequency as 0, determine the current battery capacity as a new initial battery capacity, perform a new charge-discharge cycle test according to the target test remaining capacity interval and the new initial battery capacity, monitor the battery capacity test frequency, and end the battery capacity test when the battery capacity test frequency reaches a preset capacity test frequency threshold, so as to test the service life of the battery. The computer device 102 may be at least one of a microcomputer, an embedded computer, a network computer, a single chip microcomputer, and the like. Wherein the battery 101 is used to obtain the initial capacity of the battery.
Illustratively, after obtaining the initial battery capacity of the battery 101, the computer device 102 obtains a target test remaining capacity interval in test parameters in the computer device, controls the battery to perform charge-discharge cycle test, ends the charge-discharge cycle test when the number of charge-discharge cycle tests reaches a preset threshold of the number of charge-discharge tests, determines the current battery capacity, adds 1 to the number of battery capacity tests, determines the current battery capacity as a new initial battery capacity, performs a new charge-discharge cycle test, and ends the test until the number of battery capacity tests reaches the preset threshold of the number of capacity tests; according to the method, the charge-discharge cycle test is carried out in the range of the set target test residual electric quantity, the service condition of an actual battery is effectively simulated, the actual test and application scenes are fitted, the test result is more accurate, and on the other hand, the range is set to test in the range of the whole capacity of the battery compared with the conventional scheme, so that the test time is shortened, and the test efficiency is improved.
Fig. 2 is a flowchart illustrating a battery life test method that may be performed in the system architecture of the battery 101 and the computer device 102 shown in fig. 1, according to an exemplary embodiment of the present application. Referring to fig. 2, the flowchart of the battery life testing method at least includes steps S210 to S240, and is described in detail as follows:
in step S210, a battery initial capacity and a target test remaining power section are acquired.
In one embodiment of the present application, the target remaining capacity test interval may be directly determined as 20% -100%, 40% -100%, 50% -100% and other intervals, or may be directly divided into several equal intervals, and specific selectable 10%, 20%, 50% and other applicable test values of a single interval may be classified into equal intervals of different sections, for example, for 30% of SOC sections, 0% -30%, 35% -65%, 70% -100% of selectable sections, and for 50% of SOC sections, 0% -50%, 30% -80% of selectable sections, 50% -100% of selectable sections.
It should be noted that the above-mentioned value of the target test remaining capacity interval is only an exemplary example of the present application, and the specific target test remaining capacity interval may be specifically set and valued according to the test requirement, and the specific value interval of the target test remaining capacity interval is not specifically limited herein.
In step S220, according to the initial capacity of the battery and the target test remaining capacity interval, the battery is controlled to perform a charge-discharge cycle test, and the number of charge-discharge cycle tests is monitored.
In one embodiment of the present application, if the number of charge-discharge cycle tests does not reach a preset charge-discharge cycle test number threshold, a charge-discharge cycle test request is regenerated, and the battery is left until the current temperature of the battery is consistent with the preset test temperature, and the charge-discharge cycle test is restarted.
In one embodiment of the present application, the process of controlling the battery to perform the charge-discharge cycle test according to the initial capacity of the battery and the target test remaining capacity interval may be specifically performed in fig. 3, and fig. 3 is a flowchart illustrating a charge-discharge cycle test method according to an exemplary embodiment of the present application. Referring to fig. 3, the flow chart of the charge-discharge cycle test method at least includes steps S310 to S340, and is described in detail as follows:
in step S320, a remaining charge cutoff threshold and a remaining charge discharge cutoff threshold are determined according to the target test remaining charge section.
In one embodiment of the present application, in some applicable test environments, the remaining charge cutoff threshold is consistent with a maximum value of the target test remaining interval, and the remaining discharge cutoff threshold is consistent with a minimum value of the target test remaining interval.
In step S320, control performs test charging on the battery with the second preset current until the current remaining capacity of the battery reaches the remaining capacity charging cut-off threshold value.
In one embodiment of the present application, before the battery is controlled to be tested and charged with the second preset current, the battery is controlled to be pre-discharged or pre-discharged with the first preset current in response to the charge-discharge cycle test request, and the current residual capacity of the battery under the initial capacity of the battery is monitored until the residual capacity of the battery reaches the residual capacity initial test threshold value, and the pre-discharge or the pre-discharge is ended.
In one embodiment of the application, the determination of the current remaining capacity of the battery comprises the steps of obtaining a current value of charging or discharging of the current battery and the energizing time of charging or discharging, integrating the current value and the energizing time to obtain the current capacity of the battery, and determining the current remaining capacity of the battery based on the ratio of the current capacity of the battery to the initial capacity of the battery.
In one embodiment of the present application, controlling the battery to perform preliminary discharge at a first preset current and monitor a current remaining capacity of the battery at an initial capacity of the battery further includes detecting a current temperature of the battery, and controlling the battery to start a charge-discharge cycle test when the current temperature of the battery is consistent with a preset test temperature.
In step S330, the battery is controlled to perform test discharge with a third preset current until the current remaining capacity of the battery reaches the threshold value of the remaining capacity discharge cutoff, and the test discharge is ended, and the number of charge-discharge cycle tests is increased by 1.
In one embodiment of the present application, the initial value of the charge-discharge cycle test is 0.
In one embodiment of the present application, before the battery is controlled to be tested and discharged by the third preset current, if the current temperature of the battery is greater than the preset test temperature, the battery is kept still until the current temperature of the battery is consistent with the preset test temperature, and the battery is controlled to be tested and discharged by the third preset current.
In step S340, when the number of charge-discharge cycle tests reaches a preset threshold of charge-discharge cycle tests, the charge-discharge cycle tests are ended.
In one embodiment of the present application, if the number of charge-discharge cycle tests does not reach the preset charge-discharge test number threshold, the battery is left to stand until the current temperature of the battery is consistent with the preset test temperature, and the charge-discharge cycle test is performed in a cycle until the number of charge-discharge cycle tests is consistent with the preset charge-discharge test number threshold.
In step S230, when the number of charge-discharge cycle tests reaches a preset threshold of charge-discharge cycle tests, the charge-discharge cycle tests are ended, the current capacity of the battery is determined, and the number of battery capacity tests is increased by 1.
In one embodiment of the present application, the initial value of the battery capacity test number is 0.
In step S240, determining the current capacity of the battery as a new initial capacity of the battery, performing a new charge-discharge cycle test according to the target test remaining capacity interval and the new initial capacity of the battery, and monitoring the number of battery capacity tests, until the number of battery capacity tests reaches a preset capacity test number threshold, ending the current battery capacity test to test the service life of the battery.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a specific battery life testing method according to an exemplary embodiment of the application.
As shown in fig. 4, in one embodiment of the present application, before starting the test, it further includes checking the integrity of the test battery and acquiring the battery open circuit voltage and the battery capacity value, which is consistent with the initial battery capacity in the above embodiment.
In one embodiment of the present application, wherein the measured battery test capacity is to be the battery capacity of the cycle test prior to the next capacity test.
It should be noted that the capacity tests of the batteries are all performed at the same preset temperature, which is consistent with the preset test temperature in the above embodiment.
In one embodiment of the application, a test is initiated, where N is the number of battery capacity tests and the initial capacity of the battery is recorded as a state value before decay. The battery is usually in a full state after capacity test, and the electric quantity is required to be discharged to the initial SOC at a constant current of 1C before cyclic test.
In one embodiment of the present application, before discharging the electric quantity to the initial SOC at the constant current 1C, the battery is further left for h hours, which is the same as the time period from the time when the battery is left to stand until the current temperature of the battery coincides with the preset test temperature in the above embodiment.
In one embodiment of the application, after the battery is completely kept stand and is prepared in an initial state, the battery is charged to the cut-off SOC by a first preset current I1, then the battery is kept stand in the incubator for h hours until the temperature of the battery is reduced to the preset temperature, and then the battery is discharged to the cut-off SOC by a constant current I2. And when the battery charge-discharge cycle test times N reach the preset charge-discharge test times B, ending the charge-discharge cycle test, and when the battery capacity test N reach the preset capacity test times C, ending the battery capacity test, wherein N, B, N, C is a positive integer, the h value can be adjusted according to the actual test temperature and the test requirement of the battery, and the constant currents I1 and I2 are set according to the battery capacity and the experimental requirement.
In a specific embodiment of the present application, the method for determining the SOC value of the battery during the charge and discharge processes is as follows:
1. in the charge and discharge process, the battery current intensity is obtained, and the battery current intensity can be measured by using an ammeter and the like.
2. The real-time charge (Qt) of the battery can be determined by integrating the current (I) with the charge-discharge time (t):
qt= ≡idt type (1)
In the formula (1), qt is the real-time electric quantity of the battery, I is the current, and t is the charge and discharge time.
3. Based on the initial capacity Qim of the battery measured before the experiment, the real-time SOC state of the battery can be expressed as:
soc=qt/Qim 100% formula (2)
In equation (2), SOC is the remaining battery power, qt is the real-time battery power, and Qim is the initial battery capacity.
According to the battery life test method, the battery is controlled to perform charge-discharge cycle test by acquiring the initial capacity of the battery and the target test remaining capacity interval, when the charge-discharge cycle test times reach the preset charge-discharge test times threshold value, the charge-discharge cycle test is ended, the current capacity of the battery is determined, after the battery capacity test times are added by 1, the current capacity of the battery is determined to be the new initial capacity of the battery, the new charge-discharge cycle test is performed, and the test is ended until the battery capacity test times reach the preset capacity test times threshold value; according to the method, the charge-discharge cycle test is carried out in the range of the set target test residual electric quantity, so that the service condition of an actual battery is effectively simulated, the actual test and application scenes are fitted, the test result is more accurate, and on the other hand, the range is set to be tested in the range of the whole capacity of the battery compared with the conventional scheme, so that the test time is shortened, and the test efficiency is improved; the beneficial effects that can also provide include: real-time electric quantity prediction is carried out based on time integration of current and time, and the current state of charge of the battery is determined based on the real-time electric quantity and the measured battery capacity, so that compared with a voltage value, the current state of charge of the battery can be more accurately embodied, and more accurate data sources can be provided for a test flow; the test temperature is ensured in the test process, so that test data are more stable, and further more accurate battery life prediction and related data processing are performed, and data deviation caused by a test environment to the test is avoided.
The following describes embodiments of the apparatus of the present application that may be used to perform the battery life test methods of the above-described embodiments of the present application. For details not disclosed in the embodiments of the device of the present application, please refer to the embodiments of the battery life testing method of the present application.
Fig. 5 is a schematic diagram of a battery life testing device according to an exemplary embodiment of the present application. The device may be applied to the implementation environment shown in fig. 2. The apparatus may also be suitable for other exemplary implementation environments, and may be specifically configured in other devices, and the embodiment is not limited to the implementation environment in which the apparatus is suitable.
As shown in fig. 5, the exemplary battery life test apparatus includes: test parameter acquisition module 501, charge-discharge cycle test module 502, battery capacity test module 503.
The test parameter obtaining module 501 is configured to obtain an initial capacity of the battery and a target test remaining capacity interval; the charge-discharge cycle test module 502 is configured to control the battery to perform a charge-discharge cycle test according to the initial capacity of the battery and the target test remaining capacity interval, and monitor the number of charge-discharge cycle tests; when the charge-discharge cycle test times reach a preset charge-discharge test time threshold value, ending the charge-discharge cycle test; and the battery capacity test module 503 is configured to determine a current capacity of the battery after the charge-discharge cycle test is ended, add 1 to the number of battery capacity tests, determine the current capacity of the battery as a new initial capacity of the battery, perform a new charge-discharge cycle test according to the target test remaining capacity interval and the new initial capacity of the battery, monitor the number of battery capacity tests, and end the test until the number of battery capacity tests reaches a preset capacity test number threshold, so as to test the service life of the battery.
The embodiment of the application also provides electronic equipment, which comprises: one or more processors; and a storage device for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the battery life testing method provided in the above embodiments.
Fig. 6 is a schematic diagram of a computer system of an electronic device according to an exemplary embodiment of the present application. It should be noted that, the computer system 600 of the electronic device shown in fig. 6 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.
As shown in fig. 6, the computer system 600 includes a central processing unit (CentralProcessingUnit, CPU) 601, which can perform various appropriate actions and processes, such as performing the methods in the above-described embodiments, according to a program stored in a Read-only memory (ROM) 602 or a program loaded from a storage section into a random access memory (RandomAccessMemory, RAM) 603. In the RAM603, various programs and data required for system operation are also stored. The CPU601, ROM602, and RAM603 are connected to each other through a bus. An Input/Output (I/O) interface 605 is also connected to bus 604.
The following components are connected to the I/O interface 605: an input portion 606 including a keyboard, mouse, etc.; an output portion 607 including a cathode ray tube (CathodeRayTube, CRT), a liquid crystal display (Liqu identity CrystalDisplay, LCD), and the like, and a speaker, and the like; a storage section 608 including a hard disk and the like; and a communication section 609 including a network interface card such as a LAN (local area network) card, a modem, or the like. The communication section performs communication processing via a network such as the internet. The drives are also connected to the I/O interface 605 as needed. Removable media 611 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed as needed on drive 610 so that a computer program read therefrom is installed as needed into storage section 608.
In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication portion 609, and/or installed from the removable medium 611. When executed by a Central Processing Unit (CPU) 601, performs the various functions defined in the system of the present application.
It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (ErasableProgrammableReadOnlyMemory, EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where 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 or flowchart illustration, and combinations of blocks in the block diagrams 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 the corresponding figures of the above embodiments, connecting lines may represent connection relationships between various components to represent further constituent signal paths (constituentjsignalpath) and/or one or more ends of some lines having arrows to represent main information flow, the connecting lines being an indication, not a limitation of the scheme itself, but rather the use of these lines in connection with one or more example embodiments may facilitate easier connection to circuits or logic elements, any represented signal (determined by design requirements or preferences) may actually comprise one or more signals that may be transmitted in either direction and may be implemented in any suitable type of signal scheme.
The units involved in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.
Another aspect of the application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements a method as described above. The computer-readable storage medium may be included in the electronic device described in the above embodiment or may exist alone without being incorporated in the electronic device.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.
It is to be appreciated that the application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains.
It should be understood that the foregoing is only illustrative of the preferred embodiments of the present application and is not intended to limit the embodiments of the present application, and that corresponding changes and modifications can be made by one skilled in the art in light of the main spirit and scope of the present application as hereinafter claimed.
Claims (10)
1. A battery life test method, comprising:
acquiring an initial capacity of a battery and a target test residual electric quantity interval;
according to the initial capacity of the battery and the target test residual electric quantity interval, controlling the battery to carry out charge-discharge cycle test, and monitoring the charge-discharge cycle test times;
when the charge-discharge cycle test times reach a preset charge-discharge test times threshold value, ending the charge-discharge cycle test, determining the current capacity of the battery, adding 1 to the battery capacity test times, wherein the initial value of the battery capacity test times is 0;
and determining the current capacity of the battery as a new initial capacity of the battery, performing a new charge-discharge cycle test according to a target test residual capacity interval and the new initial capacity of the battery, monitoring the number of battery capacity tests, and ending the battery capacity test until the number of battery capacity tests reaches a preset capacity test number threshold value so as to test the service life of the battery.
2. The battery life test method according to claim 1, wherein controlling the battery to perform the charge-discharge cycle test according to the initial battery capacity and the target test remaining power section comprises:
determining a charge interception threshold value of the residual electric quantity and a discharge interception threshold value of the residual electric quantity according to the target test residual electric quantity interval;
controlling the battery to be subjected to test charging by using a second preset current until the current residual capacity of the battery reaches a residual capacity charging cut-off threshold value;
controlling to test and discharge the battery with a third preset current until the current residual capacity of the battery reaches a residual capacity discharge cut-off threshold value, and adding 1 to the number of charge and discharge cycle tests, wherein the initial value of the charge and discharge cycle test is 0;
and ending the charge-discharge cycle test when the charge-discharge cycle test times reach a preset charge-discharge test time threshold value.
3. The battery life test method according to claim 2, wherein before controlling the test charging of the battery with the second preset current, the battery life test method further comprises:
and responding to the charge-discharge cycle test request, controlling the battery to perform preliminary discharge or preliminary discharge at a first preset current, monitoring the current residual capacity of the battery under the initial capacity of the battery, and ending the preliminary discharge or preliminary discharge when the residual capacity of the battery reaches the initial residual capacity test threshold.
4. The battery life test method of claim 3, wherein the battery life test method further comprises:
detecting the current temperature of the battery;
and controlling the current temperature of the battery to start a charge-discharge cycle test when the current temperature is consistent with a preset test temperature.
5. The battery life test method according to claim 2, wherein before controlling the test discharge of the battery at the third preset current, the battery life test method further comprises:
and if the current temperature of the battery is greater than the preset test temperature, standing the battery until the current temperature of the battery is consistent with the preset test temperature, and controlling the battery to be subjected to test discharge by a third preset current.
6. The battery life test method according to any one of claims 1 to 5, wherein the method of determining the current remaining capacity of the battery includes:
acquiring a current value of the current battery charging or discharging and the electrifying time of the charging or discharging;
integrating the current value and the energizing time to obtain the current electric quantity of the battery;
and determining the current residual capacity of the battery based on the ratio of the current capacity of the battery to the initial capacity of the battery.
7. The battery life test method according to any one of claims 1 to 5, wherein after controlling the battery to perform the charge-discharge cycle test and monitoring the number of charge-discharge cycle tests, the battery life test method further comprises:
and if the charge-discharge cycle test times do not reach the preset charge-discharge test times threshold, regenerating a charge-discharge cycle test request, and standing the battery until the current temperature of the battery is consistent with the preset test temperature, and restarting the charge-discharge cycle test.
8. A battery life testing device, characterized in that the battery life testing device comprises:
the test parameter acquisition module is used for acquiring initial capacity of the battery and a target test residual electric quantity interval;
the charge-discharge cycle test module is used for controlling the battery to carry out charge-discharge cycle test according to the initial capacity of the battery and the target test residual electric quantity interval and monitoring the charge-discharge cycle test times; when the charge-discharge cycle test times reach a preset charge-discharge test time threshold value, ending the charge-discharge cycle test;
and the battery capacity testing module is used for determining the current capacity of the battery after finishing the charge-discharge cycle test, adding 1 to the battery capacity test times, determining the current capacity of the battery as the new initial capacity of the battery, carrying out the new charge-discharge cycle test according to the target test residual capacity interval and the new initial capacity of the battery, monitoring the battery capacity test times, and ending the test until the battery capacity test times reach the preset capacity test times threshold value so as to test the service life of the battery.
9. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the battery life testing method of any of claims 1-7.
10. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the battery life test method of any of claims 1 to 7.
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| CN202310818493.9A CN116930803A (en) | 2023-07-05 | 2023-07-05 | Battery life test method, device, equipment and storage medium |
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| CN202310818493.9A CN116930803A (en) | 2023-07-05 | 2023-07-05 | Battery life test method, device, equipment and storage medium |
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