CN102265171B - Method and device for detecting configuration error of rated capacity of battery - Google Patents
Method and device for detecting configuration error of rated capacity of battery Download PDFInfo
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- CN102265171B CN102265171B CN2011800010046A CN201180001004A CN102265171B CN 102265171 B CN102265171 B CN 102265171B CN 2011800010046 A CN2011800010046 A CN 2011800010046A CN 201180001004 A CN201180001004 A CN 201180001004A CN 102265171 B CN102265171 B CN 102265171B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a method and a device for detecting a configuration error of rated capacity of a battery and belongs to the battery management and control field. The method in the invention includes the steps of measuring and record actual voltages of the battery in different time before the battery discharges, comparing the actual voltages to a theoretical voltage in a current discharging current and a current configured rated capacity through different discharging periods, then obtaining a absolute error value, and determining whether the rated capacity in the current configuration is wrong or not according to the absolute error value. By using the method in the invention to detecting the rated capacity configuration of the battery, the problem of large error in detecting the rest capacity and calculating the service lifetime of the battery caused by a wrong configuration of the rated capacity of the battery can be avoided, and the problem of influencing the service lifetime of the battery by controlling charging and discharging caused by the wrong configuration of the rated capacity of the battery can be prevented.
Description
Technical field
The present invention relates to the battery management control field, particularly a kind of detection method of configuration error of rated capacity of battery and device.
Background technology
At present in hydrochloric acid battery management control realizes, the capacity that battery charges control, the residual capacity of carrying out battery detects, the prediction of battery life etc. all is the dependence battery is calculated.For example, need to carry out current limliting when battery charging control, the size of current during current limliting is generally the capacity of 0.15 * battery, and wherein 0.15 is discharge coefficient.
In existing implementation, battery controller can't detect the capacity that obtains battery automatically, but carry out operative configuration by artificial capacity to battery, and will be handed down to battery rated capacity controller through the configuration capacity that artificial configuration obtains, thus realize the normal operation of battery management control.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
Because the configuration of the capacity of battery has otherness in different application scenarioss, battery altering maintenance, the natural reason such as consumption, artificial capacity to battery is configured easily and goes wrong, the residual capacity of battery is detected and the calculating generation relatively large deviation of the life prediction of battery, can affect discharging and recharging control and then affecting battery life of battery, even produce safety problem.
Summary of the invention
In order to make the solution problems of the prior art, the embodiment of the invention provides a kind of detection method and device of configuration error of rated capacity of battery, can effectively detect in the artificial mistake that the rated capacity of battery is configured.Described technical scheme is as follows:
A kind of detection method of configuration error of rated capacity of battery, described method comprises:
Measure and the virtual voltage of record battery through different discharge time the time;
Obtain under the rated capacity of current discharge current and current configuration the theoretical voltage during through different discharge time;
According to the rated capacity of judging the current configuration of described battery in the absolute value error of the theoretical voltage when the identical discharge time and virtual voltage mistake whether.
A kind of pick-up unit of configuration error of rated capacity of battery is characterized in that, described device specifically comprises:
The virtual voltage acquisition module is used for measuring and the virtual voltage of record battery through different discharge time the time;
The theoretical voltage acquisition module is used for obtaining under the rated capacity of current discharge current and current configuration, the theoretical voltage during through different discharge time;
Error detection module, whether the rated capacity that is used for judging the current configuration of described battery according to the absolute value error of the theoretical voltage through identical discharge time time the and virtual voltage mistake.
The beneficial effect of the technical scheme that the embodiment of the invention provides is: by when battery carries out discharge operation, measure and the virtual voltage of record battery when different discharge time, and compare from the theoretical voltage when the different discharge time under the rated capacity of current discharge current and current configuration, draw absolute value error, whether the rated capacity of judging the current configuration of battery according to absolute value error mistake, use this method that the rated capacity configuration of battery is detected, can prevent because of the configuration error of rated capacity with battery produces the residual capacity of battery is detected and the calculating of the life prediction of battery produces the problem of relatively large deviation, prevention because of the configuration error of rated capacity of battery produce on discharging and recharging the problem of controlling and then affecting the life-span of battery.
Description of drawings
Fig. 1 is the process flow diagram of the detection method of a kind of battery capacity configuration error of providing in the embodiment of the invention 1;
Fig. 2 is the process flow diagram of the detection method of a kind of battery capacity configuration error of providing in the embodiment of the invention 2;
Fig. 3 is the structural representation of the pick-up unit of a kind of battery capacity configuration error of providing in the embodiment of the invention 3;
Fig. 4 is the second structural representation of the pick-up unit of a kind of battery capacity configuration error of providing in the embodiment of the invention 3;
Fig. 5 is the structural representation of the error detection module in the pick-up unit of a kind of battery capacity configuration error of providing in the embodiment of the invention 3;
Fig. 6 is the third structural representation of the pick-up unit of a kind of battery capacity configuration error of providing in the embodiment of the invention 3;
Fig. 7 is the second structural representation of error detection module of the pick-up unit of a kind of battery capacity configuration error of providing in the embodiment of the invention 3.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment 1
The embodiment of the invention 1 provides a kind of detection method of battery capacity configuration error, its flow process as shown in Figure 1, the method comprises:
The embodiment of the invention is by when battery carries out discharge operation, measure and the virtual voltage of record battery when different discharge time, and compare from the theoretical voltage when the different discharge time under the rated capacity of current discharge current and current configuration, draw absolute value error, whether the rated capacity of judging the current configuration of battery according to absolute value error mistake, use this method that the rated capacity configuration of battery is detected, can prevent because of the configuration error of rated capacity with battery produces the residual capacity of battery is detected and the calculating of the life prediction of battery produces the problem of relatively large deviation, prevention because of the configuration error of rated capacity of battery produce on discharging and recharging the problem of controlling and then affecting the life-span of battery.
Embodiment 2
The embodiment of the invention 2 provides a kind of detection method of configuration error of rated capacity of battery, it is the improvement of on the basis of embodiment 1, carrying out, can automatically detect the situation of artificial configuration error of rated capacity to battery, in the present embodiment, battery take a real account constant volume as 100AH describes as example, its flow process specifically comprises as shown in Figure 2:
When battery discharge, usually, the size of the discharge current of battery controller battery is set to (rated capacity of discharge coefficient * battery), wherein, battery controller self can not obtain the rated capacity of battery, the rated capacity of the battery of storing in the battery controller obtains for artificial configuration, in the present embodiment, for convenience of explanation, the rated capacity of setting battery by the people for being configured to 50AH, discharge coefficient is defined as 0.2, and the actual current when then this battery discharges is 0.2 * 50AH=10A.
Need to prove, before implementing this step, this method also comprises:
Battery controller obtains battery when using different discharge currents to carry out discharge operation, the mapping of the corresponding relation between the theoretical voltage of discharge time and battery, and wherein, discharge current is the product of the rated capacity of discharge coefficient and battery, and is specifically as shown in table 1:
Table 1
0.1C | 0.2C | 0.3C | 0.4C | 0.5C | 0.6C | 0.7C | 0.8C | 0.9C | 1.0C | |
50.2V | 60(Min) | 10 | 0 | .. | .. | .. | 0 | .. | .. | .. |
49.6V | 120 | 35 | 15 | .. | .. | .. | 0 | .. | .. | .. |
49.0V | 180 | 60 | 30 | .. | .. | .. | 0 | .. | .. | .. |
48.4V | 240 | 90 | 45 | .. | .. | .. | 5 | .. | .. | .. |
47.8V | 300 | 120 | 60 | .. | .. | .. | 15 | .. | .. | .. |
47.2V | 360 | 144 | 72 | .. | .. | .. | 20 | .. | .. | .. |
46.6V | 420 | 168 | 84 | .. | .. | .. | 25 | .. | .. | .. |
46.0V | 480 | 192 | 98 | .. | .. | .. | 30 | .. | .. | .. |
45.4V | 540 | 216 | 110 | .. | .. | .. | 35 | .. | .. | .. |
44.8V | 600 | 240 | 120 | .. | .. | .. | 40 | .. | .. | .. |
Wherein, C represents the rated capacity of battery, 0.1,0.2,0.3...... is discharge coefficient, 0.1C, 0.2C, 0.3C...... represent the discharge current of battery when discharging, 50.2V, 49.6V, 49.0V...... represent battery when using different discharge currents to discharge, the value of the theoretical voltage during through different time.
Need to prove, the data that measure in the table 1, the battery of use should be the battery that does not ideally have natural wastage, and the rated capacity C of battery is the real account constant volume.
For example, suppose that the rated capacity of battery reality is 100AH, 0.1C, 50.2V, 60 (Min) expression of the 2nd row is discharged after 60 minutes when battery discharges with the electric current of 0.1 * 100=10A in the table 1, and the voltage drop of battery is 50.2V.
Need to prove, in the present embodiment, because the rated capacity of battery reality is 100AH, and discharge current is 10A, when battery discharges, the battery controller actual measurement obtain at the electric current that uses 10A during through different discharge time, the measurement result of virtual voltage should coming to the same thing such as the 2nd row in the table.
Further, battery controller obtains under the rated capacity of current discharge current and current configuration, theoretical voltage through different discharge times, specifically comprise: battery controller reads in the above-mentioned mapping, and battery is corresponding through the theoretical voltage of difference during discharge time under the rated capacity of using current discharge current and current configuration.
Specifically in the present embodiment be, since the rated capacity of current battery in battery controller by the artificial 50AH that is configured to, therefore battery is under the discharge current of the rated capacity of current configuration and 10A, theoretical voltage is shown in the 3rd column data in the table 1 after passing through the difference discharge of discharge times, after the discharge time through 10min, 35min, 60min, 90min......, the theoretical voltage of battery is 50.2V, 49.6V, 49.0V, 48.4V.......
Further, default regular concrete be: | theoretical voltage-virtual voltage |>preset value, and along with continuing of discharge time, | theoretical voltage-virtual voltage | increase, wherein, preset value is determined according to the accuracy requirement that configuration error of rated capacity of battery is detected, accuracy requirement is larger, and preset value is less, and accuracy requirement is less, preset value is larger, | theoretical voltage-virtual voltage | the absolute value error of=theoretical voltage and virtual voltage.
Correspondingly, judge battery through identical discharge time the time theoretical voltage and the absolute value error of virtual voltage whether meet default rule, be specially: theoretical voltage and the virtual voltage of battery when passing through identical discharge time subtracted each other, obtain difference, and above-mentioned difference taken absolute value obtain absolute value error, judge that whether this absolute value error is greater than preset value, and along with continuing of discharge time, it is large whether above-mentioned absolute value error becomes, if, then above-mentioned absolute value error meets default rule, if not, then above-mentioned absolute value error does not meet default rule.
For example, in the present embodiment, the setting preset value is 0.1V, when the rated capacity with the current configuration of battery is 50AH, after discharge 60 minutes, the virtual voltage of battery drops to 50.2V, and according to battery in the table 1 in the situation that rated capacity configuration is correct, after discharge in 60 minutes, the theoretical voltage of battery should drop to 49.0V, above-mentioned theory voltage and virtual voltage is subtracted each other and take absolute value obtain absolute value error 1.2V, absolute value error 1.2V is greater than preset value 0.1V, satisfy the condition of " | theoretical voltage-virtual voltage |>preset value ", after discharge 120 minutes, the virtual voltage of battery drops to 49.6V, and according to battery in the table 1 in the situation that capacity configuration is correct, after discharge in 120 minutes, the theoretical voltage of battery should drop to 47.8V, uses said method to calculate absolute value error and is 1.6V, continuing along with discharge time as can be known, absolute value error increases, therefore, and the capacity mistake of the current configuration of battery.
Further, draw after absolute value error do not meet default rule in judgement, this method can also comprise:
Judge that whether the current discharge time of above-mentioned battery is greater than default discharge time N;
If not, the configuration error of rated capacity of battery then;
If, judge then whether the absolute value error when before the N time discharge N-1 time of this battery discharged all meets default rule, if all meet default rule, then described battery is nature consumption, otherwise, judge the rated capacity mistake of the current configuration of described battery.
Need to prove, the computing method of the absolute value error during above-mentioned front N-1 discharge repeat no more, wherein here with the method described in the step 201-203, N is default discharge time, can be by obtaining in the empirical data to the naturally measurement of consumption of battery.
Further, capacity configuration to battery is revised, specifically comprise: obtain in above-mentioned mapping, during through identical discharge time and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of battery, during discharge time that above-mentioned process is identical and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of battery reconfigure as the rated capacity of current battery.
The embodiment of the invention is by when battery carries out discharge operation, measure and the virtual voltage of record battery when different discharge time, and compare from the theoretical voltage during through different discharge time under the rated capacity of current configuration and discharge current, draw absolute value error, whether the rated capacity of judging the current configuration of battery according to absolute value error mistake, use this method that the rated capacity configuration of battery is detected, can prevent because of the configuration error of rated capacity with battery produces the residual capacity of battery is detected and the calculating of the life prediction of battery produces the problem of relatively large deviation, prevention because of the configuration error of rated capacity of battery produce on discharging and recharging the problem of controlling and then affecting the life-span of battery.
Embodiment 3
The present embodiment provides a kind of pick-up unit of configuration error of rated capacity of battery, and as shown in Figure 3, this device comprises:
Virtual voltage acquisition module 301 is used for measuring and the virtual voltage of record battery through different discharge time the time;
Theoretical voltage acquisition module 302 is used for obtaining under the rated capacity of current discharge current and current configuration, the theoretical voltage during through different discharge time;
Further, as shown in Figure 4, said apparatus also comprises:
Correspondingly, theoretical voltage acquisition module 302 specifically comprises:
Theoretical voltage acquiring unit 3021 for the above-mentioned mapping that acquires at mapping acquisition module 304, reads battery corresponding through the theoretical voltage of difference during discharge time under the rated capacity of using current discharge current and current configuration.
Further, as shown in Figure 5, error detection module 303 specifically comprises:
The first judging unit 3032, be used for judging whether the absolute value error that computing unit 3031 obtains increases along with the lasting of discharge time greater than preset value and this absolute value error, if so, the rated capacity mistake of the current configuration of battery then, otherwise the rated capacity of the current configuration of battery is correct.
Further, as shown in Figure 6, said apparatus also comprises:
Correcting module 305, be used for after error detection module 303 obtains the rated capacity mistake of the current configuration of battery, obtain in the mapping that mapping acquisition module 304 obtains, during through identical discharge time and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of battery, in the time of will be through identical discharge time and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of battery reconfigure as the rated capacity of battery.
Further, as shown in Figure 7, error detection module 303 also comprises:
The second judging unit 3033, be used for after the first judging unit 3032 judges that drawing above-mentioned absolute value error increases along with continuing of discharge time greater than preset value and absolute value error, whether the discharge time of judging battery surpasses default discharge time, if the discharge time of battery does not surpass default discharge time, the then configuration error of rated capacity of battery;
The 3rd judging unit 3034, be used for when the second judging unit 3033 judges that the discharge time that obtains battery surpasses default discharge time, judge whether the absolute value error when battery discharged all meets absolute value error greater than the rule of preset value and the increase along with continuing of discharge time before above-mentioned default discharge time, if, then battery is nature consumption, otherwise, the configuration error of rated capacity of battery.
The pick-up unit of a kind of configuration error of rated capacity of battery that the embodiment of the invention provides, by when battery carries out discharge operation, measure and the virtual voltage of record battery when different discharge time, and compare from the theoretical voltage when the different discharge time under the rated capacity of current discharge current and current configuration, draw absolute value error, whether the rated capacity of judging the current configuration of battery according to absolute value error mistake, use this method that the rated capacity configuration of battery is detected, can prevent because of the configuration error of rated capacity with battery produces the residual capacity of battery is detected and the calculating of the life prediction of battery produces the problem of relatively large deviation, prevention because of the configuration error of rated capacity of battery produce on discharging and recharging the problem of controlling and then affecting the life-span of battery.
Need to prove: the pick-up unit of a kind of configuration error of rated capacity of battery that above-described embodiment provides, only the division with above-mentioned each functional module is illustrated, in the practical application, can as required the above-mentioned functions distribution be finished by different functional modules, the inner structure that is about to pick-up unit is divided into different functional modules, to finish all or part of function described above.In addition, the embodiment of the pick-up unit of a kind of configuration error of rated capacity of battery that above-described embodiment provides and a kind of detection method of configuration error of rated capacity of battery belongs to same design, and its specific implementation process sees embodiment of the method for details, repeats no more here.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
All or part of content in the technical scheme that above embodiment provides can realize by software programming, and its software program is stored in the storage medium that can read, storage medium for example: the hard disk in the computing machine, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the detection method of a configuration error of rated capacity of battery is characterized in that, described method comprises:
Measure and the virtual voltage of record battery through different discharge time the time;
Obtain under the rated capacity of current discharge current and current configuration the theoretical voltage during through different discharge time;
According to the rated capacity of judging the current configuration of described battery in the absolute value error of the theoretical voltage when the identical discharge time and virtual voltage mistake whether.
2. method according to claim 1 is characterized in that, before described measurement and the virtual voltage of record battery through different discharge time the time, described method also comprises:
Obtain when using different discharge currents to carry out discharge operation, the mapping of the corresponding relation between the theoretical voltage of discharge time and battery, wherein, described discharge current is the product of the rated capacity of discharge coefficient and battery;
Correspondingly, described obtaining under the rated capacity of current discharge current and current configuration, the theoretical voltage during through different discharge time specifically comprises:
In described mapping, read described battery corresponding through the theoretical voltage of difference during discharge time under the rated capacity of using current discharge current and current configuration.
3. method according to claim 1 is characterized in that, whether the rated capacity that described basis is judged the current configuration of described battery in the absolute value error of the theoretical voltage when the identical discharge time and virtual voltage mistake, specifically comprises:
Described battery subtracted each other at the theoretical voltage when the identical discharge time and virtual voltage obtain difference, described difference taken absolute value obtain absolute value error, judge whether described absolute value error increases along with continuing of discharge time greater than preset value and described absolute value error, if, the rated capacity mistake of the current configuration of described battery then, otherwise the rated capacity of the current configuration of described battery is correct.
4. method according to claim 2 is characterized in that, after the described configuration error of rated capacity of judging described battery, described method also comprises:
Obtain in described mapping, during through identical discharge time and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of described battery, during discharge time that described process is identical and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of described battery reconfigure as the rated capacity of described battery.
5. method according to claim 3 is characterized in that, described judging after described absolute value error increases along with continuing of discharge time greater than preset value and described absolute value error, and described method also comprises:
Whether the discharge time of judging described battery surpasses default discharge time;
If, judge then whether the absolute value error when described battery discharged all meets described absolute value error greater than the rule of preset value and the increase along with continuing of discharge time before described default discharge time, if, then described battery is nature consumption, otherwise, the configuration error of rated capacity of described battery;
If not, the configuration error of rated capacity of described battery then.
6. the pick-up unit of a configuration error of rated capacity of battery is characterized in that, described device specifically comprises:
The virtual voltage acquisition module is used for measuring and the virtual voltage of record battery through different discharge time the time;
The theoretical voltage acquisition module is used for obtaining under the rated capacity of current discharge current and current configuration, the theoretical voltage during through different discharge time;
Error detection module, whether the rated capacity that is used for judging the current configuration of described battery according to the absolute value error of the theoretical voltage through identical discharge time time the and virtual voltage mistake.
7. device according to claim 6 is characterized in that, described device also comprises:
The mapping acquisition module, be used for before described virtual voltage acquisition module obtains the virtual voltage of described process during different discharge time, obtain when using different discharge currents to carry out discharge operation, the mapping of the corresponding relation between the theoretical voltage of discharge time and battery, wherein, described discharge current is the product of the rated capacity of discharge coefficient and battery;
Correspondingly, described theoretical voltage acquisition module specifically comprises:
The theoretical voltage acquiring unit for the described mapping that acquires at described mapping acquisition module, reads described battery corresponding through the theoretical voltage of difference during discharge time under the rated capacity of using current discharge current and current configuration.
8. device according to claim 6 is characterized in that, described error detection module specifically comprises:
Computing unit is used for theoretical voltage and the virtual voltage of described battery through identical discharge time the time subtracted each other and obtain difference, and described difference is taken absolute value obtains absolute value error;
The first judging unit, be used for judging whether the described absolute value error that described computing unit obtains increases along with continuing of discharge time greater than preset value and described absolute value error, if, the rated capacity mistake of the current configuration of described battery then, otherwise the rated capacity of the current configuration of described battery is correct.
9. device according to claim 7 is characterized in that, described device also comprises:
Correcting module, be used for after described error detection module obtains the rated capacity mistake of the current configuration of described battery, obtain in the described mapping that described mapping acquisition module obtains, during through identical discharge time and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of described battery, during discharge time that described process is identical and the rated capacity of the corresponding battery of the immediate theoretical voltage of virtual voltage of described battery reconfigure as the rated capacity of described battery.
10. device according to claim 8 is characterized in that, described error detection module also comprises:
The second judging unit, be used for drawing after described absolute value error increases along with continuing of discharge time greater than preset value and described absolute value error in described the first judgment unit judges, whether the discharge time of judging described battery surpasses default discharge time, if the discharge time of described battery does not surpass default discharge time, the then configuration error of rated capacity of described battery;
The 3rd judging unit, when surpassing default discharge time for the discharge time that obtains described battery in described the second judgment unit judges, judge whether the absolute value error when described battery discharged all meets the rule of described absolute value error increase along with continuing of discharge time greater than preset value and described absolute value error before described default discharge time, if, then described battery is nature consumption, otherwise, the configuration error of rated capacity of described battery.
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US9594124B2 (en) * | 2014-05-15 | 2017-03-14 | Infineon Technologies Ag | Battery charge meter testing |
CN105584439B (en) * | 2016-01-22 | 2017-09-05 | 安徽江淮汽车集团股份有限公司 | A kind of automobile storage battery starts matching process and system |
CN107797879A (en) * | 2017-11-01 | 2018-03-13 | 郑州云海信息技术有限公司 | A kind of system configuration errors lookup method, device, equipment and storage medium |
CN108428956B (en) * | 2018-01-25 | 2020-09-01 | 苏州宇量电池有限公司 | Cell capacity grading method of lithium ion battery |
CN110567122B (en) * | 2019-09-16 | 2020-10-09 | 珠海格力电器股份有限公司 | Air conditioning area control method, device and system |
CN113281675B (en) * | 2021-05-14 | 2024-08-16 | 李冰鑫 | Method for identifying interphase short-circuit fault type of distribution line |
CN113419181B (en) * | 2021-06-09 | 2024-06-14 | 浙江超恒动力科技有限公司 | Working condition testing method for electric bicycle battery |
CN117471328B (en) * | 2023-12-27 | 2024-04-12 | 高新兴科技集团股份有限公司 | Method, system and terminal equipment for determining capacity of lead-acid battery |
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