CN116054346A - State determination method and device for equalization circuit - Google Patents
State determination method and device for equalization circuit Download PDFInfo
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- CN116054346A CN116054346A CN202310132786.1A CN202310132786A CN116054346A CN 116054346 A CN116054346 A CN 116054346A CN 202310132786 A CN202310132786 A CN 202310132786A CN 116054346 A CN116054346 A CN 116054346A
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- battery
- preset
- state
- equalization circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
Abstract
The invention discloses a state determining method and device of an equalizing circuit. Wherein the method comprises the following steps: after the charging of the preset battery is completed, acquiring a plurality of voltages of the preset battery, wherein the preset battery is charged through a charger, an equalizing circuit is arranged in the charger, and the time difference between the acquisition time of two adjacent voltages is larger than the first preset time; obtaining a plurality of voltage differences to obtain a voltage difference; based on the voltage difference, a state of the equalization circuit is determined. The invention solves the technical problem that the existing charge equalization circuit is easy to damage, and the batch equalization of batteries is failed.
Description
Technical Field
The invention relates to the field of battery detection, in particular to a state determining method and device of an equalization circuit.
Background
The charger with charge equalization can be used for equalizing the voltage among all the electric cores, balance the consistency of the batteries, prolong the service life of the batteries, but the equalization circuit has the risk of damage, so that the battery equalization is poor, the service life of the batteries is influenced, the charge equalization in the prior art is only responsible for equalizing the voltage among all the electric cores, and when the condition of damage of the equalization circuit occurs, the problem of batch equalization faults of the batteries possibly occurs.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a state determining method of an equalizing circuit, which at least solves the technical problem that the existing charge equalizing circuit is easy to damage and causes batch equalizing faults of batteries.
According to an aspect of an embodiment of the present invention, there is provided a state determining method of an equalization circuit, including: after the charging of the preset battery is completed, acquiring a plurality of voltages of the preset battery, wherein the preset battery is charged through a charger, an equalizing circuit is arranged in the charger, and the time difference between the acquisition time of two adjacent voltages is larger than the first preset time; obtaining a plurality of voltage differences to obtain a voltage difference; based on the voltage difference, a state of the equalization circuit is determined.
Optionally, determining the state of the equalization circuit based on the voltage difference comprises: determining that the equalization circuit is in a fault state in response to the voltage difference being greater than a preset threshold; and determining that the equalization circuit is in a normal state in response to the voltage difference being less than or equal to a preset threshold.
Optionally, in response to the voltage difference being greater than a preset threshold, the method further comprises: controlling the voltage switch of the battery to be closed; and outputting prompt information, wherein the prompt information is used for prompting a user that the equalization circuit is in a fault state.
Optionally, in response to the voltage difference being less than or equal to a preset threshold, the method further comprises: and controlling the preset battery to enter a preset state.
Optionally, the method further comprises: acquiring the battery capacity of a preset battery; and determining that the preset battery charging is completed in response to the battery capacity being the preset capacity.
Optionally, the preset battery includes a battery management chip and a microprocessor.
Optionally, after the charging of the preset battery is completed, obtaining a plurality of voltages of the preset battery includes: and after the preset battery is charged and the second preset time is waited, a plurality of voltages of the preset battery are obtained.
According to another aspect of the embodiment of the present invention, there is also provided an equalization circuit state determining apparatus, including: the voltage acquisition module is used for acquiring a plurality of voltages of the preset battery after the preset battery is charged, wherein the preset battery is charged through a charger, an equalizing circuit is arranged in the charger, and the time difference between the acquisition time of two adjacent voltages is larger than the first preset time; the difference value acquisition module is used for acquiring the difference values of a plurality of voltages to obtain a voltage difference value; and the state determining module is used for determining the state of the equalizing circuit based on the voltage difference value.
The voltage acquisition module includes: the voltage acquisition unit is used for acquiring a plurality of voltages of the preset battery after the preset battery is charged and waits for a second preset time.
The state determination module includes: the first determining unit is used for determining that the equalizing circuit is in a fault state in response to the voltage difference value being larger than a preset threshold value; and the second determining unit is used for determining that the equalization circuit is in a normal state in response to the voltage difference value being smaller than or equal to a preset threshold value.
The first determination unit includes: a switch control subunit for controlling the voltage switch of the battery to be closed; and the information output subunit is used for outputting prompt information, wherein the prompt information is used for prompting a user that the equalization circuit is in a fault state.
The second determination unit includes: and the state control subunit is used for controlling the preset battery to enter a preset state.
The device further comprises: the capacity acquisition module is used for acquiring the battery capacity of a preset battery; and the battery determining module is used for determining that the charging of the preset battery is completed in response to the battery capacity being the preset capacity.
The preset battery comprises a battery management chip and a microprocessor.
According to another aspect of the embodiment of the present invention, there is also provided an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of the above.
According to another aspect of embodiments of the present invention, there is also provided a non-transitory computer readable storage medium storing computer program instructions, wherein the computer program instructions are for causing a computer to perform a method according to any one of the above.
According to another aspect of the embodiments of the present invention, there is also provided a processor for executing computer program instructions, wherein the computer program instructions, when executed, perform the above-described equalization circuit state determining method.
In the embodiment of the invention, after the charging of the preset battery is completed, a plurality of voltages of the preset battery are obtained, wherein the preset battery is charged through a charger, and an equalizing circuit is arranged in the charger; obtaining a plurality of voltage differences to obtain a voltage difference; based on the voltage difference, a state of the equalization circuit is determined. It should be noted that the time difference between the acquired times of two adjacent voltages is greater than the first preset time, and whether the state of the equalization circuit is normal is judged by comparing the voltage difference before and after a period of time after the completion of charging of the preset battery, so that the technical effect of determining the state of the equalization circuit according to the voltage change of the preset battery is realized, the failed equalization circuit is ensured to be replaced in time, the probability of batch equalization faults of the battery is reduced, and the technical problem that the conventional charge equalization circuit is easy to damage and causes batch equalization faults of the battery is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a flow chart of an alternative method of determining the state of an equalization circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hardware architecture of an equalization circuit state determining device according to an embodiment of the present invention;
FIG. 3 is a flow chart of an alternative method of determining the state of an equalization circuit in accordance with an embodiment of the present invention;
fig. 4 is a schematic diagram of an equalization circuit state determining device according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention, there is provided a state determining method of an equalization circuit, it should be noted that the steps shown in the flowcharts of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in an order different from that herein.
Fig. 1 is a flowchart of an alternative method for determining the state of an equalization circuit according to an embodiment of the present invention, as shown in fig. 1, the method comprising the steps of:
step S102, after the charging of the preset battery is completed, a plurality of voltages of the preset battery are obtained, wherein the preset battery is charged through a charger, an equalizing circuit is arranged in the charger, and the time difference between the obtaining time of two adjacent voltages is larger than the first preset time.
The preset battery may include each battery in the battery pack, and the equalizing circuit is configured to equalize voltages between the battery cells, where after the voltage of the preset battery is obtained for the first time, the voltage of the preset battery is obtained for the second time after a period of time passes, and this period of time may be understood as a first preset time.
It should be noted that the battery cell may be understood as a component of a predetermined battery, for example, a lithium ion secondary rechargeable battery is composed of the battery cell and a protection circuit board, wherein the battery cell is responsible for storing electricity, and determines the quality of the rechargeable battery.
In an alternative embodiment, the voltages of the preset battery may be acquired through a voltage sensor, and in the embodiment of the present invention, taking two voltages of the preset battery as examples, after the preset battery is fully charged, a first voltage is acquired first, and after a first preset time, a second voltage is acquired.
It can be understood that the time difference between the acquisition times of two adjacent voltages is greater than the first preset time, so that the battery can have enough time to stabilize the voltage of the battery core, the difference between the voltages can be more accurately judged by using the stabilized voltage, the longer the first preset time is, the more accurate the obtained data is, but the lower the efficiency is caused at the same time, and a more proper value can be taken according to the needs in actual use.
Specifically, an equalization circuit is arranged in the charger, so that the consistency of the battery can be balanced, and the voltages among all the battery cells can be equalized, so that the service life of the battery can be prolonged. However, the equalization circuit of the equalization charger may be damaged, and once the equalization circuit fails, the equalization of the battery may be deteriorated, and if a plurality of batteries are using the same charger, the consistency of the plurality of batteries may be destroyed. Based on this, it is necessary to determine the state of the equalization circuit to cope with the case of the charger equalization failure.
Step S104, obtaining a plurality of voltage differences to obtain a voltage difference.
In an alternative embodiment, the difference values of the plurality of voltages are obtained, that is, two or more voltage difference values are obtained, and the greater the number of obtained voltage difference values, the higher the accuracy of determining the state of the equalization circuit. For example, assuming that two voltages are obtained, the difference between the two voltages may be directly obtained, resulting in the above-described voltage difference. For another example, if a plurality of voltages are obtained, a difference between two adjacent voltages may be obtained to obtain a plurality of differences, and then an average value of the plurality of differences is obtained to obtain the above voltage difference. Also for example, assuming that a plurality of voltages are acquired, a difference between two adjacent voltages may be acquired to obtain a plurality of differences, and then a maximum difference among the plurality of differences is acquired to obtain the above-described voltage difference. In the embodiment of the present invention, two voltages are obtained as an example.
Step S106, determining the state of the equalization circuit based on the voltage difference.
Wherein the state of the equalization circuit may include normal or failure.
Specifically, when the voltage difference is greater than a certain threshold, the equalization circuit may be considered to be malfunctioning, and when the voltage difference is less than or equal to the threshold, the equalization circuit may be considered to be in a normal state.
In an alternative embodiment, the state of the equalization circuit may be determined by a state determination module.
Through the steps, after the charging of the preset battery is completed, a plurality of voltages of the preset battery are obtained, wherein the preset battery is charged through a charger, and an equalizing circuit is arranged in the charger; obtaining a plurality of voltage differences to obtain a voltage difference; based on the voltage difference, a state of the equalization circuit is determined. It should be noted that the time difference between the acquired times of two adjacent voltages is greater than the first preset time, and whether the state of the equalization circuit is normal is judged by comparing the voltage difference before and after a period of time after the completion of charging of the preset battery, so that the technical effect of determining the state of the equalization circuit according to the voltage change of the preset battery is realized, and the technical problem that the existing charge equalization can only be used for equalizing the voltages among all the battery cells is solved.
Optionally, determining the state of the equalization circuit based on the voltage difference comprises: determining that the equalization circuit is in a fault state in response to the voltage difference being greater than a preset threshold; and determining that the equalization circuit is in a normal state in response to the voltage difference being less than or equal to a preset threshold.
The preset threshold may be obtained from a large number of tests, and may be, for example, 5V, which is the maximum value of the front-to-back voltage difference when the equalization circuit is in a normal state.
It can be understood that the preset threshold is the maximum value of the front-to-back voltage difference when the equalization circuit is in the normal state, if the front-to-back voltage difference is greater than the maximum value, the equalization circuit can be considered to be in the fault state, and if the front-to-back voltage difference is less than or equal to the maximum value, the equalization circuit can be considered to be in the normal state. For example, assuming that the preset threshold is 5V, if the difference between the front and rear voltages of the equalization circuit is measured to be greater than 5V, the equalization circuit may be considered to be in a fault state, and if the difference between the front and rear voltages is less than or equal to 5V, the equalization circuit may be considered to be in a normal state.
Optionally, in response to the voltage difference being greater than a preset threshold, the method further comprises: controlling the voltage switch of the battery to be closed; and outputting prompt information, wherein the prompt information is used for prompting a user that the equalization circuit is in a fault state.
The prompt information may be information for reminding the user of timely maintenance after determining that the equalization circuit is in a fault state.
In an alternative embodiment, the voltage switch of the battery may be controlled to be turned off by a voltage switch control means. The prompt message may be fed back to the user by means of an acoustic feedback device, which may be understood as any device capable of achieving acoustic feedback, such as a horn, or other horn-loaded device. The normal traffic notification fed back by the sound feedback device can be a sound with semantics or a sound which can be identified without semantics, for example, the normal notification of the state of the equalization circuit is "drop" one sound, and the abnormal notification of the state of the equalization circuit is "drop" three sound.
It can be understood that after the equalization circuit is determined to be in a fault state, the cell voltage is controlled to be closed, so that the cell voltage of the battery can be prevented from being influenced by the fault equalization circuit, and the cell voltage is prevented from being in fault.
Optionally, in response to the voltage difference being less than or equal to a preset threshold, the method further comprises: and controlling the preset battery to enter a preset state.
The preset state may be a state that the battery can enter under the condition that the equalization circuit is normal, for example, when the battery is temporarily not needed to be used, the preset battery can be controlled to enter a standby state, and when the battery is needed to be used, the preset battery can be controlled to enter a working state.
In an alternative embodiment, the preset battery may be controlled to enter the preset state by a state control module.
It can be understood that under the condition that the equalization circuit is in a normal state, the battery is controlled to enter different states according to different battery use requirements, so that the equalization circuit in the battery can be protected, and the service life of the battery is prolonged.
Optionally, the method further comprises: acquiring the battery capacity of a preset battery; and determining that the preset battery charging is completed in response to the battery capacity being the preset capacity.
The battery capacity may be used to represent how much the battery is charged in the preset battery, and the preset capacity may be a capacity representing the battery when the preset battery is fully charged.
In an alternative embodiment, the battery capacity may be expressed in terms of a percentage, for example, the preset capacity may be 100%, and the battery capacity of the preset battery may be obtained using a charge sensor.
It can be understood that under the condition that the preset battery is fully charged, the battery is in a relatively stable state, and the state of the equalization circuit is detected at the moment, so that the accuracy of the obtained result is relatively high.
Optionally, the preset battery includes a battery management chip and a microprocessor.
The battery management chip mainly plays a role of hardware protection, the microprocessor is responsible for communication with the charger, and the equalization circuit of the charger is controlled by the charger microprocessor.
It will be appreciated that a battery having a battery management chip and a microprocessor can collect data on the voltage, current, temperature, etc. of the battery, and therefore such a battery is required for condition monitoring of the equalization circuit.
Optionally, after the charging of the preset battery is completed, obtaining a plurality of voltages of the preset battery includes: and after the preset battery is charged and the second preset time is waited, a plurality of voltages of the preset battery are obtained.
The second preset time may be a period of time required to be left after the completion of charging of the preset battery, and the second preset time and the first preset time may be set to equal values.
It can be understood that after the preset battery is charged, the preset battery is kept stand for a period of time, because the current of the circuit which is generally faulty is relatively small, a longer time is needed to detect the change of the voltages of the front and rear battery cells, so that the battery can have enough time to stabilize the voltage of the battery cells, the difference between the voltages can be more accurately judged by using the stabilized voltage, the longer the second preset time is, the more accurate the obtained data is, but the lower the efficiency is caused, and a more proper value can be taken according to the needs in the actual use.
Fig. 2 is a schematic diagram of a hardware architecture of an equalization circuit state determining device according to an embodiment of the present invention, as shown in fig. 2, the positive terminal of the battery pack 20 is connected to a power supply and communication output port 22 through a loop switch 21, and then passes through a current sampling circuit 23, and finally flows through the negative electrode of the battery pack 20, thus forming a large current loop of the battery. The battery management chip 24 collects the voltage and the temperature of the battery pack 20 through the temperature and voltage sampling module 25 and controls the opening and closing of the loop switch 21; the battery management chip 24 is then communicatively coupled to the battery microprocessor 26 via a communication port. The voltage of the battery pack 20 is supplied to the battery microprocessor 26 via the regulated power supply 27, and the charger microprocessor 28 is connected to the power supply and communication output port 22. The cell voltage of the battery is connected to the equalization module of the charger and is controlled by the battery management chip 24. The battery cell voltage passes through the voltage switch 29, through the charger power supply 210 to the equalization circuit 211 of the equalization charger; the battery microprocessor 26 controls the opening and closing of the voltage switch 28. Note that the battery circuit switch 21 may be controlled by either positive or negative electrode.
Fig. 3 is a flowchart of an alternative method for determining a state of an equalization circuit according to an embodiment of the present invention, as shown in fig. 3, and the specific flow is as follows: step S301, the battery is connected to the charger, step S302, the battery enters a charging state, step S303, whether the charging is completed is judged, if the charging is not completed, the step S302 is returned to, the charging state is continuously entered, if the charging is completed, the step S304 is executed, the battery microprocessor is controlled to enter a standby state, after standing for a period of time, the battery microprocessor reads the battery cell voltage of each section, step S305, after standing for a period of time, the battery microprocessor reads the battery cell voltage of each section and calculates the difference value of the battery cell voltages before and after each section, step S306 judges whether any battery cell difference value is larger than a threshold value, if yes, the step S307 is executed, the battery microprocessor closes a voltage switch and alarms to prompt, if no, the step S308 is executed, and the battery microprocessor enters the standby state or other states.
Example 2
According to another aspect of the embodiment of the present invention, there is further provided an apparatus for determining an equalization circuit state, which may perform the method for determining an equalization circuit state in the foregoing embodiment 1, where a specific implementation scheme and an application scenario in the embodiment are the same as those in the foregoing embodiment 1, and are not described herein.
Fig. 4 is a schematic diagram of an equalization circuit state determining device according to an embodiment of the present invention, as shown in fig. 4, the device includes: the voltage obtaining module 402 is configured to obtain a plurality of voltages of the preset battery after the preset battery is charged, where the preset battery is charged by a charger, an equalizing circuit is disposed in the charger, and a time difference between obtaining times of two adjacent voltages is greater than a first preset time; the difference obtaining module 404 is configured to obtain a difference of a plurality of voltages, to obtain a voltage difference; a state determining module 406, configured to determine a state of the equalization circuit based on the voltage difference.
The voltage acquisition module 402 includes: the voltage acquisition unit is used for acquiring a plurality of voltages of the preset battery after the preset battery is charged and waits for a second preset time.
The state determination module 406 includes: the first determining unit is used for determining that the equalizing circuit is in a fault state in response to the voltage difference value being larger than a preset threshold value; and the second determining unit is used for determining that the equalization circuit is in a normal state in response to the voltage difference value being smaller than or equal to a preset threshold value.
The first determination unit includes: a switch control subunit for controlling the voltage switch of the battery to be closed; and the information output subunit is used for outputting prompt information, wherein the prompt information is used for prompting a user that the equalization circuit is in a fault state.
The second determination unit includes: and the state control subunit is used for controlling the preset battery to enter a preset state.
The device further comprises: the capacity acquisition module is used for acquiring the battery capacity of a preset battery; and the battery determining module is used for determining that the charging of the preset battery is completed in response to the battery capacity being the preset capacity.
The preset battery comprises a battery management chip and a microprocessor.
Example 3
According to another aspect of the embodiment of the present invention, there is also provided an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores computer program instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of the above.
Example 4
According to another aspect of embodiments of the present invention there is also provided a non-transitory computer readable storage medium storing computer program instructions for causing a computer to perform a method according to any one of the above.
Example 5
According to another aspect of the embodiments of the present invention, there is also provided a processor for executing computer program instructions, wherein the computer program instructions, when executed, perform the above-described equalization circuit state determining method.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A method for determining a state of an equalization circuit, comprising:
after the charging of the preset battery is completed, acquiring a plurality of voltages of the preset battery, wherein the preset battery is charged through a charger, an equalizing circuit is arranged in the charger, and the time difference between the acquisition time of two adjacent voltages is larger than the first preset time;
obtaining the difference values of the voltages to obtain a voltage difference value;
based on the voltage difference, a state of an equalization circuit is determined.
2. The method of claim 1, wherein determining a state of an equalization circuit based on the voltage difference comprises:
determining that the equalization circuit is in a fault state in response to the voltage difference being greater than a preset threshold;
and determining that the equalization circuit is in a normal state in response to the voltage difference value being less than or equal to the preset threshold value.
3. The method of claim 2, wherein in response to the voltage difference being greater than a preset threshold, the method further comprises:
controlling the voltage switch of the battery to be closed;
and outputting prompt information, wherein the prompt information is used for prompting a user that the equalization circuit is in a fault state.
4. The method of claim 2, wherein in response to the voltage difference being less than or equal to the preset threshold, the method further comprises:
and controlling the preset battery to enter a preset state.
5. The method according to claim 1, wherein the method further comprises:
acquiring the battery capacity of the preset battery;
and determining that the preset battery charging is completed in response to the battery capacity being a preset capacity.
6. The method of claim 1, wherein the predetermined battery comprises a battery management chip and a microprocessor.
7. The method of claim 1, wherein obtaining the plurality of voltages of the preset battery after the preset battery is charged comprises:
and after the preset battery is charged and a second preset time is waited, acquiring the voltages of the preset battery.
8. An equalization circuit state determining apparatus, comprising:
the device comprises a voltage acquisition module, a voltage control module and a voltage control module, wherein the voltage acquisition module is used for acquiring a plurality of voltages of a preset battery after the preset battery is charged, the preset battery is charged through a charger, an equalization circuit is arranged in the charger, and the time difference between the acquisition time of two adjacent voltages is larger than a first preset time;
the difference value acquisition module is used for acquiring the difference values of the voltages to obtain a voltage difference value;
and the state determining module is used for determining the state of the equalizing circuit based on the voltage difference value.
9. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.
10. A non-transitory computer readable storage medium, characterized in that it stores computer program instructions, wherein the computer program instructions are for causing the computer to perform the method according to any one of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310132786.1A CN116054346A (en) | 2023-02-07 | 2023-02-07 | State determination method and device for equalization circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310132786.1A CN116054346A (en) | 2023-02-07 | 2023-02-07 | State determination method and device for equalization circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559634A (en) * | 2023-07-11 | 2023-08-08 | 杭州华塑科技股份有限公司 | Circuit fault detection method and device, storage medium and electronic equipment |
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2023
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559634A (en) * | 2023-07-11 | 2023-08-08 | 杭州华塑科技股份有限公司 | Circuit fault detection method and device, storage medium and electronic equipment |
| CN116559634B (en) * | 2023-07-11 | 2023-09-12 | 杭州华塑科技股份有限公司 | Circuit fault detection method and device, storage medium and electronic equipment |
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