Time parameter determination method and device for battery test and computer equipment

Abstract

The invention provides a time parameter determination method and device for battery testing, computer equipment and a medium, and belongs to the technical field of batteries. The method comprises the steps that test condition parameters and a first time parameter set needed by testing are obtained, the test condition parameters comprise a balance judgment threshold value corresponding to a balance stage, and the first time parameter set comprises inflation time corresponding to an inflation stage and balance time corresponding to the balance stage; acquiring a pressure drop value of the battery after the inflation stage and the balance stage are completed based on the test condition parameters and the first time parameter group as a first sampling value; comparing the first sampling value with a balance judgment threshold value; in response to the fact that the first sampling value is not equal to the balance judgment threshold value, first operation is executed, and the first operation comprises adjusting at least one of the inflation time and the balance time so as to update the first time parameter set.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a method, device, computer equipment and medium for determining time parameters of a battery test. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] When conducting air tightness testing on batteries, the duration of different stages of the testing process has an important impact on the accuracy and efficiency of the test results. Currently, it is mainly estimated by technical personnel based on experience, which is difficult to meet current testing needs. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the background technology. To this end, one purpose of the present application is to provide a method for determining time parameters for battery testing to improve and alleviate the problem that the existing method for recommending time parameters for battery testing is not accurate enough, is time-consuming, and easily leads to low test efficiency.

[0005] An embodiment of the first aspect of the present application provides a method for determining time parameters of a battery test, wherein the battery test includes an inflation phase and a balancing phase performed after the inflation phase, and is characterized in that it includes: obtaining test condition parameters and a first time parameter group required for the test, wherein the test condition parameters include a balance judgment threshold corresponding to the balancing phase, and the first time parameter group includes an inflation time corresponding to the inflation phase and a balancing time corresponding to the balancing phase; obtaining a voltage drop value of the battery after completing the inflation phase and the balancing phase based on the test condition parameters and the first time parameter group as a first sampling value; comparing the first sampling value with the balance judgment threshold; and in response to the first sampling value being unequal to the balance judgment threshold, performing a first operation, wherein the first operation includes adjusting at least one of the inflation time and the balancing time to update the first time parameter group.

[0006] In the technical solution of the embodiment of the present application, by adjusting at least one of the inflation time and the balancing time, the time corresponding to the inflation stage and / or the balancing stage in the battery test can be optimized, thereby taking into account both the accuracy and efficiency of the detection.

[0007] In some embodiments, the first operation includes: in response to the comparison result of the first sampling value and the balance judgment threshold being the first result, adjusting at least one of the inflation time and the balance time to obtain a second time parameter group; updating the first sampling value according to the second time parameter group; comparing the first sampling value and the balance judgment threshold; and repeating the above steps until the comparison result of the first sampling value and the balance judgment threshold is the second result, wherein the first result is different from the second result. Based on the comparison result of the first sampling value and the balance judgment threshold, the duration of each stage is adjusted until a comparison result different from the previous comparison result appears, so that the inflation time and / or the balance time can be continuously optimized on the basis of taking into account the detection accuracy, thereby improving the detection efficiency.

[0008] In some embodiments, the adjusting at least one of the inflation time and the balancing time comprises: increasing or decreasing a first fixed value for at least one of the inflation time and the balancing time. Increasing or decreasing a fixed value for at least one of the inflation time and the balancing time can increase the flexibility of adjustment.

[0009] In some embodiments, the adjusting at least one of the inflation time and the balancing time includes: in response to the balancing time being within a preset range, increasing or decreasing the balancing time by a second fixed value, and in response to the balancing time being outside the preset range, increasing or decreasing the inflation time by a third fixed value. Setting the adjustment sequence of the balancing time and the inflation time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0010] In some embodiments, the method further includes: in response to the first result indicating that the first sampling value is less than or equal to the balance judgment threshold, and the second result indicating that the first sampling value is greater than the balance judgment threshold, using the second time parameter group corresponding to the last time the comparison result is the first result to update the time of the corresponding stage in the first time parameter group; in response to the first result indicating that the first sampling value is greater than the balance judgment threshold, and the second result indicating that the first sampling value is less than or equal to the balance judgment threshold, using the second time parameter group corresponding to the first time the comparison result is the second result to update the time of the corresponding stage in the first time parameter group. By selecting the adjustment amount of the duration based on the two different results obtained, a more accurate inflation time and / or balance time can be obtained.

[0011] In some embodiments, the battery test also includes a rest stage after the balancing stage, the first time parameter group also includes a rest time, the test condition parameter also includes a rest judgment threshold corresponding to the rest stage, and the method also includes: obtaining a voltage drop value of the battery after completing the inflation stage, the balancing stage, and the rest stage based on the test condition parameter and the first time parameter group as a second sampling value; comparing the second sampling value with the rest judgment threshold; and in response to the second sampling value being unequal to the rest judgment threshold, performing a second operation, the second operation including adjusting at least one of the inflation time, the balancing time, and the rest time to update the first time parameter group. Based on the comparison result of the second sampling value and the rest judgment threshold, the time in the first time parameter group is optimized, which can improve the accuracy of detection and reduce the risk of overkill on the one hand, and improve the detection efficiency on the other hand.

[0012] In some embodiments, the second operation includes: in response to the comparison result of the second sampling value and the static judgment threshold being the third result, adjusting at least one of the inflation time, the balance time and the static time to obtain a third time parameter group; updating the second sampling value according to the third time parameter group; comparing the second sampling value and the static judgment threshold; and repeating the above steps until the comparison result of the second sampling value and the static judgment threshold is the fourth result, wherein the third result is different from the fourth result. Based on the comparison result of the second sampling value and the static judgment threshold, the time of each stage is adjusted and the second sampling value is cyclically obtained for comparison until a comparison result different from the previous comparison result appears, so that the preferred time that can take into account both detection accuracy and detection efficiency can be obtained, thereby more accurate time of each stage.

[0013] In some embodiments, the adjusting at least one of the inflation time, the balancing time, and the rest time comprises: increasing or decreasing a fourth fixed value for at least one of the inflation time, the balancing time, and the rest time. Increasing or decreasing a fixed value for at least one of the inflation time, the balancing time, and the rest time can increase the flexibility of adjustment.

[0014] In some embodiments, the adjusting of at least one of the inflation time, the balancing time, and the rest time includes: in response to the rest time being within a preset range, increasing or decreasing a fifth fixed value for the rest time, and in response to the rest time being outside the preset range, increasing or decreasing a sixth fixed value for at least one of the inflation time and the balancing time. Setting the adjustment sequence of the balancing time, the inflation time, and the rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0015] In some embodiments, in response to the rest time being outside its preset range, increasing or decreasing a sixth fixed value for at least one of the inflation time and the balancing time comprises: in response to the inflation time being within its preset range, increasing or decreasing the sixth fixed value for the inflation time, and in response to the inflation time being outside its preset range, increasing or decreasing the sixth fixed value for the balancing time. Setting the adjustment sequence of the balancing time, the inflation time, and the rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0016] In some embodiments, the method further includes: in response to the third result indicating that the second sampling value is less than or equal to the static judgment threshold, and the fourth result indicating that the second sampling value is greater than the static judgment threshold, using the third time parameter group corresponding to the last time the comparison result is the third result to update the time of the corresponding stage in the first time parameter group; in response to the third result indicating that the second sampling value is greater than the static judgment threshold, and the fourth result indicating that the second sampling value is less than or equal to the static judgment threshold, using the third time parameter group corresponding to the first time the comparison result is the fourth result to update the time of the corresponding stage in the first time parameter group. By selecting the adjustment amount of the duration based on the two different results obtained, more accurate time of each stage can be obtained.

[0017] In some embodiments, the battery test also includes a test phase performed after the rest phase, the first time parameter group also includes a test time, the test condition parameter also includes a test capability threshold as a detection judgment threshold, and the method also includes: obtaining N voltage drop values ​​after the battery completes N times of the battery test based on the test condition parameter and the first time parameter group, determining a test capability index Cg according to the N voltage drop values, and using the test capability index Cg as a third sampling value, where N is an arbitrary positive integer; comparing the third sampling value with the detection judgment threshold; and in response to the third sampling value being not equal to the detection judgment threshold, performing a third operation, the third operation including adjusting at least one of the inflation time, the balance time, the rest time, and the test time to update the first time parameter group. Based on the comparison result of the third sampling value and the detection judgment threshold, the time in the first time parameter group is optimized, which can improve the accuracy of the detection on the one hand, and the detection efficiency on the other hand.

[0018] In some embodiments, the third operation includes: in response to the comparison result of the third sampling value and the detection judgment threshold being the fifth result, adjusting at least one of the inflation time, the balance time, the static time and the test time to obtain a fourth time parameter group; updating the third sampling value according to the fourth time parameter group; comparing the third sampling value and the detection judgment threshold; and repeating the above steps until the comparison result of the third sampling value and the detection judgment threshold is the sixth result, wherein the fifth result is different from the sixth result. Based on the comparison result of the third sampling value and the detection judgment threshold, the time of each stage is adjusted and the third sampling value is cyclically obtained for comparison until a comparison result different from the previous comparison result appears, so that the preferred time that can take into account both detection accuracy and detection efficiency can be obtained, thereby more accurate time of each stage.

[0019] In some embodiments, the adjusting at least one of the inflation time, the balancing time, the rest time, and the test time comprises: increasing or decreasing a seventh fixed value for at least one of the inflation time, the balancing time, the rest time, and the test time. Increasing or decreasing a fixed value for at least one of the inflation time, the balancing time, the rest time, and the test time can increase the flexibility of adjustment.

[0020] In some embodiments, the adjusting of at least one of the inflation time, the balancing time, the rest time, and the test time comprises: in response to the test time being within its preset range, increasing or decreasing the test time by an eighth fixed value, and in response to the test time being outside its preset range, increasing or decreasing at least one of the inflation time, the balancing time, and the rest time by a ninth fixed value. Setting the adjustment sequence of the test time, the inflation time, the balancing time, and the rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0021] In some embodiments, in response to the test time being outside its preset range, increasing or decreasing a ninth fixed value for at least one of the inflation time, the balancing time, and the rest time comprises: in response to the inflation time being within its preset range, increasing or decreasing a ninth fixed value for the inflation time, and in response to the inflation time being outside its preset range, increasing or decreasing a ninth fixed value for at least one of the balancing time and the rest time. Setting the adjustment sequence of the test time, inflation time, balancing time, and rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0022] In some embodiments, in response to the inflation time being outside its preset range, increasing or decreasing a ninth fixed value for at least one of the balancing time and the resting time comprises: in response to the balancing time being within its preset range, increasing or decreasing a ninth fixed value for the balancing time, and in response to the balancing time being outside its preset range, increasing or decreasing a ninth fixed value for the resting time. Setting the adjustment sequence of the test time, inflation time, balancing time, and resting time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0023] In some embodiments, the method further includes: in response to the fifth result indicating that the third sampling value is greater than or equal to the detection judgment threshold, and the sixth result indicating that the third sampling value is less than the detection judgment threshold, using the fourth time parameter group corresponding to the last time the comparison result is the fifth result to update the time of the corresponding stage in the first time parameter group; in response to the fifth result indicating that the third sampling value is less than the detection judgment threshold, and the sixth result indicating that the third sampling value is greater than or equal to the detection judgment threshold, using the fourth time parameter group corresponding to the first time the comparison result is the sixth result to update the time of the corresponding stage in the first time parameter group. By selecting the adjustment amount of the duration based on the two different results obtained, more accurate time of each stage can be obtained.

[0024] In some embodiments, the method further includes: obtaining product parameters of the battery, the product parameters including one or more of product free volume, test specifications, and product leakage rate; and determining the test condition parameters and the first time parameter group according to the product parameters. The initial test parameters can be calculated using the pre-acquired product parameters of the battery.

[0025] In some embodiments, the battery test further includes a pre-charging stage before the charging stage, the pre-charging stage is configured to be cut off based on a preset pressure, and the charging stage is configured to charge the battery in a manner to keep the internal pressure of the battery constant. Performing a pre-charging stage based on a pressure cutoff on the battery can at least partially provide corresponding test conditions for the battery test.

[0026] In some embodiments, the pre-filling stage includes a first pre-filling stage and a second pre-filling stage, the second pre-filling stage is after the first pre-filling stage, and the inflation pressure of the second pre-filling stage is less than the inflation pressure of the first pre-filling stage. By dividing the pre-filling stage into two stages, high-pressure fast filling and low-pressure slow filling, the internal pressure fluctuation caused by the drastic change of the inflation pressure can be reduced while shortening the inflation time, thereby helping to shorten the subsequent balancing time and improve the detection efficiency.

[0027] An embodiment of the second aspect of the present application provides a device for determining time parameters of a battery test, wherein the battery test includes a charging stage and a balancing stage performed after the charging stage, and includes: a parameter acquisition module, configured to acquire test condition parameters and a first time parameter group required for the test, wherein the test condition parameters include a balance judgment threshold corresponding to the balancing stage, and the first time parameter group includes a charging time corresponding to the charging stage and a balancing time corresponding to the balancing stage; a sampling value acquisition module, configured to acquire a voltage drop value of the battery after the charging stage and the balancing stage are completed based on the test condition parameters and the first time parameter group as a first sampling value; a comparison module, configured to compare the first sampling value with the balance judgment threshold; and a parameter adjustment module, configured to perform a first operation in response to the first sampling value being unequal to the balance judgment threshold, wherein the first operation includes adjusting at least one of the charging time and the balancing time to update the first time parameter group.

[0028] An embodiment of the third aspect of the present application provides a computer device, comprising: at least one processor; and at least one memory communicatively connected to the at least one processor, the at least one memory storing instructions, which, when executed individually or collectively by the at least one processor, enable the computing device to execute any of the methods described in the first aspect above.

[0029] An embodiment of the fourth aspect of the present application provides a computer-readable storage medium storing instructions, which, when executed individually or collectively by one or more processors of a computing device, enable the computing device to execute any of the methods described in the first aspect.

[0030] An embodiment of the fourth aspect of the present application provides a computer program product, comprising instructions, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to execute any of the methods described in the first aspect.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0033] Figure 1 A schematic flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application;

[0034] Figure 2 A gas circuit diagram for battery testing of some embodiments of the present application;

[0035] Figure 3 A schematic flow chart of a first operation of some embodiments of the present application;

[0036] Figure 4 A schematic flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application;

[0037] Figure 5 A schematic flow chart of a second operation of some embodiments of the present application;

[0038] Figure 6 A schematic flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application;

[0039] Figure 7 A schematic flow chart of a third operation of some embodiments of the present application;

[0040] Figure 8 An exemplary block diagram of a device for determining time parameters of a battery test according to some embodiments of the present application

[0041] Fig. 9 is a block diagram of an exemplary computer device that can be used in the exemplary embodiments; and

[0042] Fig.10 A schematic flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0052] The battery assembly box and the cooling pipes placed in the box need to meet the corresponding airtightness requirements. If there is a problem with the airtightness of the cooling pipe or box, it may cause poor insulation or short circuit, resulting in damage to components and even safety accidents.

[0053] At present, the test time of battery airtightness is often estimated based on the experience of technicians, and it is difficult to grasp the accuracy of the test. In addition, in order to obtain accurate test results as much as possible, technicians usually tend to recommend a longer duration for each stage, which also leads to reduced test efficiency.

[0054] Therefore, it is necessary to propose a method for determining time parameters of a battery test that does not rely on manual experience and can obtain a relatively accurate duration of each stage in the battery test.

[0055] Based on the above considerations, in order to improve the efficiency of battery testing while taking into account the accuracy of detection, a method for determining time parameters for battery testing is proposed. Based on the sampling values ​​obtained after going through different stages, the duration of at least one of the corresponding stages is adjusted. By using this method, the test time can be optimized, while taking into account the accuracy of detection, the problem of low test efficiency caused by using the existing test parameter recommendation method can be improved.

[0056] The method for determining the time parameters of the battery test disclosed in the embodiment of the present application can be used, but not limited to, in the battery test of vehicles, ships or aircraft, etc. In this way, the labor cost can be effectively reduced, and the problem of low test efficiency caused by using the existing test parameter recommendation method can be improved.

[0057] An embodiment of the present application provides a method 100 for determining a time parameter of a battery test, wherein the battery test includes a gas filling phase and a balancing phase performed after the gas filling phase. Figure 1 This is a flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application, referring to Figure 1 , the method 100 comprises:

[0058] Step 110, obtaining test condition parameters and a first time parameter group required for the test, wherein the test condition parameters include a balance judgment threshold corresponding to the balance stage, and the first time parameter group includes an inflation time corresponding to the inflation stage and a balance time corresponding to the balance stage;

[0059] Step 120, obtaining a voltage drop value of the battery after the battery completes the charging stage and the balancing stage based on the test condition parameters and the first time parameter group as a first sampling value;

[0060] Step 130, comparing the first sampling value with the balance judgment threshold; and

[0061] Step 140 : In response to the first sampling value being not equal to the balance judgment threshold, executing a first operation, wherein the first operation includes adjusting at least one of the inflation time and the balance time to update the first time parameter group.

[0062] The battery test may include a charging phase and a balancing phase performed after the charging phase. Before performing the battery test, a test condition parameter and a first time parameter group are first determined, wherein the test condition parameter at least includes a balance judgment threshold corresponding to the balancing phase, and the first time parameter group at least includes a charging time indicating the duration of the charging phase and a balancing time indicating the duration of the balancing phase.

[0063] The test condition parameters include, but are not limited to, the upper limit and lower limit of the test pressure in the test system.

[0064] Figure 2 This is a gas circuit diagram for battery testing in some embodiments of the present application. Figure 2 During the charging phase of the battery test, the pressure regulating valve 1 is closed and the pressure regulating valve 2 is opened. The gas provided by the gas source is filled into the standard end and the product end at a certain pressure. The product end is the battery. After the predetermined charging time corresponding to the charging phase is charged, the pressure regulating valve 2 is closed and the battery test enters the balance phase.

[0065] In the equilibrium stage, no external gas is charged into the standard end and the product end, but the intercommunication valve connecting the two is still open, that is, the standard end and the product end are interconnected. At this time, the gas in the standard end and the product end will gradually mix and stabilize.

[0066] After the inflation phase and the balancing phase of the battery test are completed based on the inflation time and the balancing time, the current pressure drop value inside the battery can be obtained. In some embodiments, the pressure drop value can be obtained by setting a differential pressure gauge between the battery and the standard end and reading the value change of the differential pressure gauge per unit time. Since the pressure drop value can directly reflect the leakage inside the battery, the larger the pressure drop value, the greater the leakage of the battery and the worse the sealing performance. Conversely, the smaller the pressure drop value, the better the sealing performance of the battery.

[0067] The balance judgment threshold is a judgment threshold used to measure whether the sealing performance of the battery meets the design requirements after the balance stage is completed. In some embodiments, the balance judgment threshold can be a judgment threshold for the pressure drop, and the detected pressure drop value can be used as the first sampling value and the balance judgment threshold for comparison. If the first sampling value is greater than the balance judgment threshold, it means that the current pressure drop inside the battery fails to meet expectations. This may be caused by insufficient time in the previous inflation stage or the balancing stage, and the pressure drop inside the battery fails to reach a stable state. At least one of the inflation time and the balancing time in the first time parameter group can be adjusted to make the battery state more stable, thereby obtaining a more accurate pressure drop value for judging the sealing performance of the battery, reducing the risk of overkilling, and improving the accuracy of detection. If the first sampling value is less than the balance judgment threshold, it means that the current pressure drop inside the battery meets the design requirements. There may be a problem of excess detection time here, which is not conducive to improving the detection efficiency. Therefore, the corresponding first operation can also be performed to adjust at least one of the inflation time and the balancing time in the first time parameter group, optimize the time corresponding to different stages in the first time parameter group, and further improve the detection efficiency.

[0068] Based on the comparison result between the first sampling value and the balance judgment threshold, the time in the first time parameter group is optimized, which can improve the accuracy of detection and reduce the risk of overkill on the one hand, and improve the detection efficiency on the other hand.

[0069] Figure 3 Schematic diagram of the first operation of some embodiments of the present application. According to some embodiments of the present application, refer to Figure 3 , the first operation 200 includes:

[0070] Step 201: in response to a comparison result between a first sampling value and a balance judgment threshold being a first result, adjusting at least one of an inflation time and a balance time to obtain a second time parameter group;

[0071] Step 202: Update the first sampling value according to the second time parameter group;

[0072] Step 203: compare the first sampling value with the balance judgment threshold; and

[0073] The above steps 201 - 203 are repeated until the comparison result between the first sampling value and the balance judgment threshold is a second result, wherein the first result is different from the second result.

[0074] In some embodiments, the first result may be that the first sampling value is less than or equal to the balance judgment threshold, and the second result may be that the first sampling value is greater than the balance judgment threshold. In some embodiments, the first result may be that the first sampling value is greater than the balance judgment threshold, and the second result may be that the first sampling value is less than or equal to the balance judgment threshold. It should be understood that although only the above two cases are listed in this application, other first results and second results that are different from each other are also possible.

[0075] The second time parameter group is a temporary parameter obtained by adjusting the time parameters (e.g., at least one of the charging time and the balancing time) in the first time parameter group based on the comparison result, and each adjustment can obtain a corresponding second time parameter group. And in step 202, updating the first sampling value according to the second time parameter group means that after the battery is operated in the charging stage and the balancing stage in sequence according to the second time parameter group, the voltage drop value inside the battery is re-obtained, and the voltage drop value is used to update the first sampling value for subsequent comparison.

[0076] In the present application, in order to improve the problem of insufficient accuracy caused by manually recommended test parameters, the inflation time and / or balance time are adjusted for all cases where the first sampling value is not equal to the balance judgment threshold.

[0077] In some examples, the initial comparison result between the first sampling value and the balance judgment threshold is determined as the first result, and the first result may be, for example, that the first sampling value is less than or equal to the balance judgment threshold. At this time, although the first sampling value has satisfied the threshold judgment condition, in order to obtain a better duration of each stage, for example, to reduce the overall time of the battery test, it is still necessary to adjust the inflation time and / or the balance time, for example, to reduce the inflation time and / or the balance time, until the first sampling value is greater than the balance judgment threshold.

[0078] In some examples, the initial comparison result between the first sampling value and the balance judgment threshold is determined as the first result, and the first result may be, for example, that the first sampling value is greater than the balance judgment threshold. At this time, the first sampling value does not meet the threshold judgment condition, and the inflation time and / or the balance time need to be adjusted, for example, the inflation time and / or the balance time are increased until the first sampling value obtained is less than or equal to the balance judgment threshold.

[0079] Based on the comparison result between the first sampling value and the balance judgment threshold, the duration of each stage is adjusted and the first sampling value is obtained cyclically for comparison until a comparison result different from the previous comparison result appears. In this way, the optimal time that can take into account both detection accuracy and detection efficiency can be obtained, thereby achieving more accurate inflation time and / or balance time.

[0080] According to some embodiments of the present application, adjusting at least one of the inflation time and the balancing time includes: increasing or decreasing a first fixed value for at least one of the inflation time and the balancing time.

[0081] In some embodiments, only the inflation time in the first time parameter group may be increased or decreased by a first fixed value until a comparison result between the first sampling value and the balance judgment threshold is a second result different from the first result.

[0082] In some embodiments, only the first fixed value may be increased or decreased for the balance time in the first time parameter group until a comparison result between the first sampling value and the balance judgment threshold is a second result different from the first result.

[0083] In some embodiments, the inflation time and the balance time in the first time parameter group may be simultaneously increased or decreased by a first fixed value until a comparison result between the first sampling value and the balance judgment threshold is a second result different from the first result.

[0084] The size of the first fixed value may be determined according to the specification of the actual detection object and the need for adjustment accuracy, and this embodiment does not impose any limitation on this.

[0085] Increasing or decreasing a fixed value for at least one of the inflation time and the balancing time may increase flexibility of adjustment.

[0086] According to some embodiments of the present application, adjusting at least one of the inflation time and the balancing time includes: in response to the balancing time being within its preset range, increasing or decreasing the balancing time by a second fixed value; in response to the balancing time being outside its preset range, increasing or decreasing the inflation time by a third fixed value.

[0087] In some embodiments, the range thresholds of the duration corresponding to each stage and the adjustment order of the inflation time and the balance time when the first sampling value and the balance judgment threshold are not equal can be predetermined. Since the first sampling value is the pressure drop value after the balance stage is completed, the influence of the balance time corresponding to the balance stage on the pressure drop value is more obvious than the inflation time corresponding to the inflation stage. Therefore, when adjusting the time, the balance time within the preset range can be adjusted first. If the balance time is adjusted to exceed the preset range (i.e., outside the preset range), the comparison result between the first sampling value and the balance judgment threshold still fails to change, indicating that the adjustment of the balance time within the acceptable preset range cannot meet the adjustment requirements. At this time, the inflation time corresponding to the inflation stage is adjusted instead. The preset range of the balance time can be determined according to the parameters of the battery itself and the corresponding detection conditions. The preset range may include an upper limit value and a lower limit value. The balance time within its preset range means that the balance time is greater than or equal to the lower limit value and less than or equal to the upper limit value.

[0088] In some embodiments, if the balancing time is within the preset range, the balancing time may be increased or decreased by a fixed value. If the balancing time is outside the preset range, the inflation time may be increased or decreased by a fixed value.

[0089] Setting the adjustment sequence of the balancing time and the inflation time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0090] According to some embodiments of the present application, the method also includes: in response to the first result indicating that the first sampling value is less than or equal to the balance judgment threshold, and the second result indicating that the first sampling value is greater than the balance judgment threshold, using the second time parameter group corresponding to the last time the comparison result was the first result to update the time of the corresponding stage in the first time parameter group; in response to the first result indicating that the first sampling value is greater than the balance judgment threshold, and the second result indicating that the first sampling value is less than or equal to the balance judgment threshold, using the second time parameter group corresponding to the first time the comparison result was the second result to update the time of the corresponding stage in the first time parameter group.

[0091] In some embodiments, the adjustment of the time parameter based on the comparison result between the first sampling value and the balance judgment threshold is a cyclic gradual adjustment until the cycle exit condition is met. During the adjustment period, a second time parameter group can be obtained in each cycle, as well as the first sampling value updated after executing the inflation phase and the balance phase according to the second time parameter group.

[0092] In some embodiments, if the first result indicates that the first sampling value is less than or equal to the balance judgment threshold, the balance time and / or inflation time is reduced until a second result occurs in which the first sampling value is greater than the balance judgment threshold, and then it is determined to use the last comparison result as the first result, that is, the time of each stage in the second time parameter group corresponding to the time when the first sampling value is less than or equal to the balance judgment threshold, to update the time of the corresponding stage in the first time parameter group.

[0093] In some embodiments, if the first result indicates that the first sampling value is greater than the balance judgment threshold, the balance time and / or inflation time are increased until a second result occurs in which the first sampling value is less than or equal to the balance judgment threshold, and then the time of each stage in the second parameter group corresponding to the first result when the first sampling value is less than or equal to the balance judgment threshold is determined to be used to update the time of the corresponding stage in the first time parameter group.

[0094] By selecting the adjustment amount of the duration based on the two different results obtained, a more accurate inflation time and / or balancing time can be obtained.

[0095] According to some embodiments of the present application, the battery test further includes a rest phase after the balancing phase, the first time parameter group further includes the rest time, and the test condition parameter further includes a rest judgment threshold corresponding to the rest phase. Figure 4 This is a flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application, see Figure 4 , the method 100 further includes:

[0096] Step 310, obtaining a voltage drop value of the battery after the battery completes the charging stage, the balancing stage, and the static stage based on the test condition parameters and the first time parameter group as a second sampling value;

[0097] Step 320, comparing the second sampling value with the static determination threshold; and

[0098] Step 330: In response to the second sampling value being not equal to the static judgment threshold, executing a second operation, wherein the second operation includes adjusting at least one of the inflation time, the balancing time and the static time to update the first time parameter group.

[0099] The battery test may further include a rest phase after the balancing phase. In the battery test, the first time parameter group may further include a rest time corresponding to the rest phase. The test condition parameters may further include a rest judgment threshold corresponding to the rest phase.

[0100] refer to Figure 2 During the static phase of the battery test, the intercommunication valve connecting the standard end and the product end is closed, and the gases in the standard end and the product end are isolated from each other. Since the air pressure in the standard end is maintained constant and there is a leak in the product end, the differential pressure sensor connecting the two will show the pressure difference between the standard end and the product end.

[0101] It should be understood that at least one of the filling time and the balancing time in the first time parameter group used in step 310 should be an updated time. After the filling phase, the balancing phase, and the rest phase of the battery test are completed based on the filling time, the balancing time, and the rest time, the current internal voltage drop value of the battery can be obtained.

[0102] The static judgment threshold is a judgment threshold used to measure whether the sealing performance of the battery meets the design requirements after the static stage is completed. In some embodiments, the static judgment threshold can be a judgment threshold for the pressure drop, and the detected pressure drop value can be used as the second sampling value and compared with the static judgment threshold. Similar to the balance stage, if the second sampling value is greater than the static judgment threshold, it means that the current pressure drop inside the battery has not reached the expected level. This situation may be caused by the fact that the duration of the previous inflation stage, the balance stage, or the static stage is not enough, and the pressure drop inside the battery has not reached a stable state. At least one of the inflation time, the balance time, and the static time in the first time parameter group can be adjusted to make the battery state more stable, thereby obtaining a more accurate pressure drop value for judging the sealing performance of the battery, reducing the risk of overkill, and improving the accuracy of detection. If the second sampling value is less than the static judgment threshold, it means that the current voltage drop inside the battery meets the design requirements, but there may be a problem of excess detection time, which is not conducive to improving the detection efficiency. Therefore, the corresponding second operation can also be performed to adjust at least one of the inflation time, balancing time and static time in the first time parameter group, optimize the time corresponding to different stages in the first time parameter group, and further improve the detection efficiency.

[0103] Based on the comparison result between the second sampling value and the static judgment threshold, the time in the first time parameter group is optimized, which can improve the accuracy of detection and reduce the risk of overkill on the one hand, and improve the detection efficiency on the other hand.

[0104] Figure 5 Schematic diagram of the second operation of some embodiments of the present application. According to some embodiments of the present application, refer to Figure 5 , the second operation 400 includes:

[0105] Step 401: in response to the comparison result of the second sampling value and the static judgment threshold being a third result, adjusting at least one of the inflation time, the balancing time and the static time to obtain a third time parameter group;

[0106] Step 402: Update the second sampling value according to the third time parameter group;

[0107] Step 403: compare the second sampling value with the static determination threshold; and

[0108] The above steps 401 - 403 are repeated until the comparison result of the second sampling value and the static determination threshold is a fourth result, wherein the third result is different from the fourth result.

[0109] In some embodiments, the third result may be that the second sampling value is less than or equal to the static judgment threshold, and the fourth result may be that the second sampling value is greater than the static judgment threshold. In some embodiments, the third result may be that the second sampling value is greater than the static judgment threshold, and the fourth result may be that the second sampling value is less than or equal to the static judgment threshold. It should be understood that although only the above two cases are listed in this application, other mutually different first results and second results are also possible.

[0110] In the present application, in order to improve the problems of insufficient accuracy and low detection efficiency caused by manually recommended test parameters, at least one of the inflation time, balance time and rest time is adjusted for all cases where the sampling value is not equal to the static judgment threshold.

[0111] In some examples, the initial comparison result between the second sampling value and the static judgment threshold is determined as the third result, and the third result may be, for example, that the second sampling value is less than or equal to the static judgment threshold. At this time, although the second sampling value has satisfied the threshold judgment condition, there may be a situation where the time corresponding to a certain stage is redundant. In order to obtain a better duration of each stage, for example, to reduce the overall time of the battery test, it is still necessary to adjust at least one of the inflation time, the balancing time, and the static time, for example, to reduce one or more of the inflation time, the balancing time, and the static time, until the second sampling value is greater than the static judgment threshold.

[0112] In some examples, the initial comparison result between the second sampling value and the static judgment threshold is determined as the third result, and the third result may be, for example, that the second sampling value is greater than the static judgment threshold. At this time, the second sampling value does not meet the threshold judgment condition, and at least one of the inflation time, the balancing time, and the static time needs to be adjusted, for example, one or more of the inflation time, the balancing time, and the static time is increased until the second sampling value obtained is less than or equal to the static judgment threshold.

[0113] Based on the comparison result between the second sampling value and the static judgment threshold, the time of each stage is adjusted and the second sampling value is obtained cyclically for comparison until a comparison result different from the previous comparison result appears. In this way, the optimal time that takes into account both detection accuracy and detection efficiency can be obtained, thereby more accurately determining the time of each stage.

[0114] According to some embodiments of the present application, adjusting at least one of the inflation time, the balancing time, and the rest time includes: increasing or decreasing a fourth fixed value for at least one of the inflation time, the balancing time, and the rest time.

[0115] In some embodiments, one or more of the inflation time, the balancing time, and the rest time in the first time parameter group may be adjusted, for example, by increasing or decreasing the fourth fixed value. The fourth fixed value may be set according to the specification parameters of the detection object, the detection accuracy, and the adjustment range.

[0116] Increasing or decreasing a fixed value for at least one of the inflation time, the balancing time, and the rest time may increase flexibility of adjustment.

[0117] According to some embodiments of the present application, adjusting at least one of the inflation time, the balancing time and the rest time includes: in response to the rest time being within a preset range, increasing or decreasing the rest time by a fifth fixed value; in response to the rest time being outside of the preset range, increasing or decreasing at least one of the inflation time and the balancing time by a sixth fixed value.

[0118] In some embodiments, the range thresholds of the duration corresponding to each stage and the adjustment order of the inflation time, the balance time and the rest time when the second sampling value and the rest judgment threshold are not equal can be predetermined. Since the second sampling value is the pressure drop value after the rest stage is completed, the influence of the rest time corresponding to the rest stage on the pressure drop value is more obvious than the inflation time corresponding to the inflation stage and the balance time corresponding to the balance stage. Therefore, when adjusting the time, the rest time within the preset range can be adjusted first. If the rest time is adjusted to exceed the preset range (i.e., outside the preset range), the comparison result between the second sampling value and the rest judgment threshold still fails to change, indicating that the adjustment of the rest time within the acceptable preset range cannot meet the adjustment requirements. At this time, the inflation time corresponding to the inflation stage and / or the balance time corresponding to the balance stage are adjusted instead. The preset range of the rest time can be determined according to the parameters of the battery itself and the corresponding detection conditions. The preset range may include an upper limit value and a lower limit value. The rest time within its preset range means that the rest time is greater than or equal to the lower limit value and less than or equal to the upper limit value.

[0119] The fifth fixed value and the sixth fixed value can be set according to the specification parameters of the detection object, the detection accuracy, the adjustment range, etc., and the two can be equal or different.

[0120] Setting the adjustment sequence of the balancing time, the inflation time and the resting time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0121] According to some embodiments of the present application, in response to the standing time being outside its preset range, at least one of the inflation time and the balancing time is increased or decreased by a sixth fixed value, including: in response to the inflation time being within its preset range, the inflation time is increased or decreased by a sixth fixed value, and in response to the inflation time being outside its preset range, the balancing time is increased or decreased by a sixth fixed value.

[0122] In some embodiments, if the static time is adjusted to exceed the preset range (i.e., outside the preset range), and the comparison result between the second sampling value and the static judgment threshold value still fails to change, the inflation time of the inflation time and the balance time can be adjusted preferentially. If the inflation time is adjusted to exceed the preset range (i.e., outside the preset range), and the comparison result between the second sampling value and the static judgment threshold value still fails to change, the balance time is continued to be adjusted.

[0123] Setting the adjustment sequence of the balancing time, the inflation time and the resting time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0124] According to some embodiments of the present application, the method also includes: in response to the third result indicating that the second sampling value is less than or equal to the static judgment threshold, and the fourth result indicating that the second sampling value is greater than the static judgment threshold, using the third time parameter group corresponding to the last time the comparison result is the third result to update the time of the corresponding stage in the first time parameter group; in response to the third result indicating that the second sampling value is greater than the static judgment threshold, and the fourth result indicating that the second sampling value is less than or equal to the static judgment threshold, using the third time parameter group corresponding to the first time the comparison result is the fourth result to update the time of the corresponding stage in the first time parameter group.

[0125] In some embodiments, the adjustment of the time parameter based on the comparison result between the second sampling value and the static judgment threshold is a cyclic gradual adjustment until the cycle exit condition is met. During the adjustment period, a third time parameter group can be obtained in each cycle, as well as the second sampling value updated after executing the inflation stage, the balancing stage and the static stage according to this third time parameter group.

[0126] In some embodiments, if the third result indicates that the second sampling value is less than or equal to the static judgment threshold, at least one of the balancing time, inflation time and static time is reduced until a fourth result occurs in which the second sampling value is greater than the static judgment threshold, and then it is determined to use the last comparison result as the first result, that is, the time of each stage in the third time parameter group corresponding to the time when the second sampling value is less than or equal to the static judgment threshold to update the time of the corresponding stage in the first time parameter group.

[0127] In some embodiments, if the third result indicates that the second sampling value is greater than the static judgment threshold, at least one of the balancing time, inflation time and static time is increased until a fourth result occurs in which the second sampling value is less than or equal to the static judgment threshold, then it is determined to use the time of each stage in the third time parameter group corresponding to the first result when the second sampling value is less than or equal to the static judgment threshold to update the time of the corresponding stage in the first time parameter group.

[0128] By selecting the adjustment amount of the duration based on the two different results obtained, more accurate time of each stage can be obtained.

[0129] According to some embodiments of the present application, the battery test also includes a test phase performed after the rest phase, the first time parameter group also includes the test time, and the test condition parameter also includes a test capability threshold as a detection judgment threshold. Figure 6 This is a flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application, see Figure 6 , the method 100 further includes:

[0130] Step 510: Obtain N voltage drop values ​​after the battery completes N battery tests based on the test condition parameters and the first time parameter group, determine a test capability index Cg according to the N voltage drop values, and use the test capability index Cg as a third sampling value, where N is any positive integer;

[0131] Step 520: compare the third sampling value with the detection judgment threshold; and

[0132] Step 530: In response to the third sampling value being not equal to the detection judgment threshold, executing a third operation, the third operation including adjusting at least one of the inflation time, the balancing time, the static time and the test time to update the first time parameter group.

[0133] The battery test may further include a test phase after the rest phase. In the battery test, the first time parameter group may further include a test time corresponding to the test phase. The test condition parameter may further include a detection judgment threshold corresponding to the test phase.

[0134] refer to Figure 2 During the test phase of the battery test, the intercommunication valve connecting the standard end and the product end remains closed, and the gases in the standard end and the product end are isolated from each other. Due to leakage at the product end, the pressure at the product end will gradually decrease.

[0135] It should be understood that at least one of the inflation time, balancing time and refinement time in the first time parameter group used in step 510 should be an updated time. Based on the inflation time, balancing time, rest time and test time, N battery tests, for example, 5 times, are completed, and N voltage drop values ​​after the battery test can be obtained. The test capability index Cg can be determined based on the obtained N voltage drop values. The test capability index Cg can be used as a third sampling value and compared with the detection judgment threshold corresponding to the test stage. The detection judgment threshold can be a predetermined test capability threshold, for example, 1.67.

[0136] The test capability index Cg of the battery test can be determined in the following manner: first, the battery is tested N times (for example, 5 times) including a charging stage, a balancing stage, a static stage and a testing stage, and N voltage drop values ​​are obtained; the average value or the average value deviation value (for example, the standard deviation) of the voltage drop is calculated using the obtained N voltage drop values, and the tolerance range of the N voltage drop values ​​obtained in the N tests is determined; the test capability index Cg is determined based on the above calculated value.

[0137] The test capability index Cg is used to characterize the capability of the measurement system. The higher the Cg value, the narrower the dispersion range of the measurement value relative to the tolerance range, the smaller the measurement variation, the higher the stability of the measurement result, and thus it is more suitable for measurement.

[0138] In some embodiments, in response to the test capability index Cg of the battery test calculated after completing N battery tests being not equal to the detection judgment threshold, a third operation is performed, which includes adjusting at least one of the filling time, the balancing time, the rest time, and the test time, so as to update the first time parameter group using at least one of the adjusted filling time, the balancing time, the rest time, and the test time.

[0139] In some embodiments, N may be a positive integer between 5 and 10 (eg, 5), and the test capability threshold may be 1.67.

[0140] In some embodiments, N may be a positive integer between 11 and 50 (eg, 32), and the test capability threshold may be 1.33.

[0141] In some embodiments, the determination and optimization of the test capability index Cg and the corresponding test capability threshold can be performed twice respectively. For example, the test capability index Cg corresponding to a small number of battery tests (for example, 5 times) is first calculated, and then compared with the test capability threshold of a preset value of 1.67, and the corresponding optimization is performed according to the comparison result. After meeting the requirements of a small number of battery tests, the test capability index Cg corresponding to a large number of battery tests (for example, 32 times) is calculated, and then compared with the test capability threshold of a preset value of 1.33, and the corresponding optimization is continued according to the comparison result.

[0142] Based on the comparison result between the third sampling value and the detection judgment threshold, the time in the first time parameter group is optimized, which can improve the detection accuracy on the one hand and the detection efficiency on the other hand.

[0143] Figure 7 Schematic diagram of the third operation of some embodiments of the present application. According to some embodiments of the present application, refer to Figure 7 , the third operation 600 includes:

[0144] Step 601: in response to the comparison result of the third sampling value and the detection judgment threshold being a fifth result, adjusting at least one of the inflation time, the balancing time, the static time and the test time to obtain a fourth time parameter group;

[0145] Step 602: Update the third sampling value according to the fourth time parameter group;

[0146] Step 603: compare the third sampling value with the detection judgment threshold; and

[0147] Repeat steps 601 to 603 until the comparison result between the third sampling value and the detection judgment threshold is a sixth result, wherein the fifth result is different from the sixth result.

[0148] In the present application, in order to improve the problem of insufficient accuracy caused by manually recommended test parameters, at least one of the inflation time, balancing time, static time and test time is adjusted for all situations where the sampling value is not equal to the detection judgment threshold.

[0149] In some examples, the initial comparison result between the third sampling value and the detection judgment threshold is determined as the fifth result, and the fifth result may be, for example, that the third sampling value is greater than or equal to the detection judgment threshold. At this time, although the third sampling value has satisfied the threshold judgment condition, in order to obtain a better duration of each stage, for example, to reduce the overall time of the battery test, it is still necessary to adjust at least one of the inflation time, the balancing time, the rest time, and the test time, for example, to reduce at least one of the inflation time, the balancing time, the rest time, and the test time, until the third sampling value is less than the detection judgment threshold.

[0150] In some examples, the initial comparison result between the third sampling value and the detection judgment threshold is determined as the fifth result, and the fifth result may be, for example, that the third sampling value is less than the detection judgment threshold. At this time, the second sampling value does not meet the threshold judgment condition, and at least one of the inflation time, the balancing time, the rest time, and the test time needs to be adjusted, for example, at least one of the inflation time, the balancing time, the rest time, and the test time is increased until the third sampling value obtained is greater than or equal to the detection judgment threshold.

[0151] Based on the comparison result between the third sampling value and the detection judgment threshold, the time of each stage is adjusted and the third sampling value is obtained cyclically for comparison until a comparison result different from the previous comparison result appears. In this way, the optimal time that takes into account both detection accuracy and detection efficiency can be obtained, thereby more accurately determining the time of each stage.

[0152] According to some embodiments of the present application, adjusting at least one of the inflation time, the balancing time, the static time, and the test time includes: increasing or decreasing a seventh fixed value for at least one of the inflation time, the balancing time, the static time, and the test time.

[0153] In some embodiments, the seventh fixed value may be increased or decreased for one or more of the inflation time, the balancing time, the rest time, and the test time. The seventh fixed value may be set according to the specification parameters of the detection object, the detection accuracy, and the adjustment range.

[0154] Increasing or decreasing a fixed value for at least one of the inflation time, the balancing time, the rest time, and the measuring time may increase flexibility of adjustment.

[0155] According to some embodiments of the present application, adjusting at least one of the inflation time, balancing time, rest time and test time includes: in response to the test time being within its preset range, increasing or decreasing the test time by an eighth fixed value; in response to the test time being outside its preset range, increasing or decreasing at least one of the inflation time, balancing time and rest time by a ninth fixed value.

[0156] In some embodiments, the range thresholds of the duration corresponding to each stage and the adjustment order of the test time, the inflation time, the balance time and the rest time when the third sampling value and the detection judgment threshold are not equal can be predetermined. The influence of the length of time corresponding to different stages on the detection results may be different. Considering that the length of the test time corresponding to the test stage has the most direct influence on the third sampling value of the detection, therefore, when the test time is still within its corresponding preset range, the adjustment of the length of the test time is given priority, unless it has exceeded the corresponding preset range, then consider adjusting at least one of the inflation time, the balance time and the rest time.

[0157] In some embodiments, if the test time is within its preset range, the test time may be increased or decreased by an eighth minimum fixed value. If the test time is outside its preset range, at least one of the inflation time, the balancing time, and the rest time may be increased or decreased by a ninth fixed value. The eighth and ninth fixed values ​​may be set according to the specification parameters of the detection object, the detection accuracy, and the adjustment range.

[0158] Setting the adjustment sequence of the test time, inflation time, balancing time and rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0159] According to some embodiments of the present application, in response to the test time being outside its preset range, a ninth fixed value is increased or decreased for at least one of the inflation time, the balancing time, and the rest time, including: in response to the inflation time being within its preset range, the inflation time is increased or decreased by a ninth fixed value; in response to the inflation time being outside its preset range, the at least one of the balancing time and the rest time is increased or decreased by a ninth fixed value.

[0160] In some embodiments, if the test time is outside its preset range and the inflation time is within its preset range, the inflation time may be increased or decreased by a ninth fixed value. If both the test time and the inflation time are outside the corresponding preset ranges, then the balancing time and / or the resting time may be increased or decreased by a ninth fixed value.

[0161] Setting the adjustment sequence of the test time, inflation time, balancing time and rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0162] According to some embodiments of the present application, in response to the inflation time being outside its preset range, at least one of the balancing time and the standing time is increased or decreased by a ninth fixed value, including: in response to the balancing time being within its preset range, the balancing time is increased or decreased by a ninth fixed value, and in response to the balancing time being outside its preset range, the standing time is increased or decreased by a ninth fixed value.

[0163] In some embodiments, if the test time and the inflation time are both outside the corresponding preset ranges and the balancing time is within its preset range, the balancing time may be increased or decreased by a ninth fixed value. If the test time, the inflation time, and the balancing time are all outside the corresponding preset ranges, the rest time may be increased or decreased by a ninth fixed value.

[0164] Setting the adjustment sequence of the test time, inflation time, balancing time and rest time can make the adjustment of the duration of each stage more targeted and improve the adjustment efficiency.

[0165] According to some embodiments of the present application, the method also includes: in response to the fifth result indicating that the third sampling value is greater than or equal to the detection judgment threshold, and the sixth result indicating that the third sampling value is less than the detection judgment threshold, using the fourth time parameter group corresponding to the last time the comparison result was the fifth result to update the time of the corresponding stage in the first time parameter group; in response to the fifth result indicating that the third sampling value is less than the detection judgment threshold, and the sixth result indicating that the third sampling value is greater than or equal to the detection judgment threshold, using the fourth time parameter group corresponding to the first time the comparison result was the sixth result to update the time of the corresponding stage in the first time parameter group.

[0166] In some embodiments, the adjustment of the time parameter based on the comparison result between the third sampling value and the detection judgment threshold is a cyclic gradual adjustment until the cycle exit condition is met. During the adjustment period, a fourth time parameter group can be obtained in each cycle, and the third sampling value updated after executing the inflation stage, the balancing stage, the static stage and the testing stage according to this fourth time parameter group.

[0167] In some embodiments, if the fifth result indicates that the third sampling value is greater than or equal to the detection judgment threshold, at least one of the test time, balance time, inflation time and static time is reduced until a sixth result occurs in which the third sampling value is less than the detection judgment threshold. Then, the time of each stage in the fourth time parameter group corresponding to the time when the third sampling value is greater than or equal to the detection judgment threshold is determined to be the fifth result, that is, the time of each stage in the fourth time parameter group corresponding to the time when the third sampling value is greater than or equal to the detection judgment threshold is used to update the time of the corresponding stage in the first time parameter group.

[0168] In some embodiments, if the fifth result indicates that the third sampling value is less than the detection judgment threshold, at least one of the test time, balance time, inflation time and static time is increased until a sixth result appears in which the third sampling value is greater than or equal to the detection judgment threshold, then the time of the corresponding stage in the first time parameter group is updated using the duration of each stage in the fourth time parameter group corresponding to the first result when the third sampling value is greater than or equal to the detection judgment threshold.

[0169] By selecting the adjustment amount of the duration based on the two different results obtained, more accurate time of each stage can be obtained.

[0170] According to some embodiments of the present application, the method further includes: obtaining product parameters of the battery, the product parameters including one or more of product free volume, test specifications, and product leakage rate; and determining test condition parameters and a first time parameter group based on the product parameters.

[0171] The product parameters are related to the battery being tested, including but not limited to the battery's product leakage rate, free volume coefficient, test specification coefficient, etc.

[0172] The judgment threshold and initial duration of each stage can be determined by the product parameters of the battery itself.

[0173] The initial test parameters can be calculated using the product parameters of the battery acquired in advance.

[0174] The battery test also includes a pre-charge phase prior to the charging phase, the pre-charge phase is configured to be cut off based on a preset pressure, and the charging phase is configured to charge in a manner to keep the internal pressure of the battery constant.

[0175] Battery testing also includes a pre-charge phase prior to the aforementioned charge phase. Figure 2 In the pre-charging stage, pressure regulating valve 1 or pressure regulating valve 2 is opened to inflate the standard end and the product end. When the air pressure in the standard end and the product end reaches the preset pressure, the inflation stops.

[0176] The preset pressure can be determined according to the specification parameters of the object to be tested. Since the pressure inside the object to be tested increases after inflation, the volume of the object to be tested may expand and deform, and the expansion and deformation of the volume of the object to be tested will also cause its internal pressure to decrease. Such pressure fluctuations will affect the internal pressure drop changes of the object to be tested, thereby affecting the accuracy of the sealing performance test results. Therefore, it is necessary to connect an inflation stage after the pre-filling stage, and the inflation stage is to inflate in a way that maintains a constant pressure inside the object to be tested, and the inflation stage is based on the inflation time in the first time parameter, that is, the inflation is stopped after the constant pressure inflation method and the inflation time in the first time parameter are maintained. In this way, the object to be tested can complete volume deformation during the inflation stage, so that its volume and internal pressure can tend to be stable.

[0177] Performing a pre-charging phase based on pressure cutoff on the battery can provide corresponding test conditions for battery testing.

[0178] The pre-charging stage includes a first pre-charging stage and a second pre-charging stage. The second pre-charging stage is after the first pre-charging stage. The inflation pressure of the second pre-charging stage is lower than the inflation pressure of the first pre-charging stage.

[0179] The first pre-charging stage can be a high-pressure fast-charging stage in which pressure regulating valve 1 is used to charge the air. In this stage, the standard end and the product end can reach the desired pressure range relatively quickly. The second pre-charging stage can be a low-pressure slow-charging stage in which pressure regulating valve 2 is used to charge the air, so as to alleviate the pressure change in the standard end and the product end caused by the closure of the high-pressure charging valve.

[0180] By dividing the pre-charging stage into two stages, high-pressure fast charging and low-pressure slow charging, the inflation time can be shortened while reducing the internal pressure fluctuations caused by drastic changes in the inflation pressure, thereby helping to shorten the subsequent balancing time and improve detection efficiency.

[0181] The embodiment of the present application provides a device 700 for determining a time parameter of a battery test. Fig. 9 The device 700 for determining the time parameter of a battery test includes: a parameter acquisition module 710 , a sampling value acquisition module 720 , a comparison module 730 and a parameter adjustment module 740 .

[0182] The parameter acquisition module 710 is configured to acquire test condition parameters and a first time parameter group required for the test, wherein the test condition parameters include a balance judgment threshold corresponding to the balance stage, and the first time parameter group includes an inflation time corresponding to the inflation stage and a balance time corresponding to the balance stage;

[0183] The sampling value acquisition module 720 is configured to acquire, as a first sampling value, a voltage drop value of the battery after the battery completes the charging stage and the balancing stage based on the test condition parameter and the first time parameter group;

[0184] The comparison module 730 is configured to compare the first sampling value with the balance judgment threshold; and

[0185] The parameter adjustment module 740 is configured to execute a first operation in response to the first sampling value being not equal to the balance judgment threshold, wherein the first operation includes adjusting at least one of the inflation time and the balance time to update the first time parameter group.

[0186] The parameter acquisition module 710, the sampling value acquisition module 720, the comparison module 730 and the parameter adjustment module 740 in the battery test time parameter determination device 700 may correspond to the following respectively: Figure 1 For the sake of brevity, steps 110 to 140 in the method 100 are not described here in detail. It should be understood that, corresponding to the embodiment of the method 100, the embodiment of the apparatus 700 for determining the time parameter of a battery test may also include more modules.

[0187] It should be noted that the functions of the various modules discussed herein can be divided into multiple modules, and / or at least some functions of multiple modules can be combined into a single module. The specific module discussed herein performs an action including the specific module itself performing the action, or alternatively the specific module calls or otherwise accesses another component or module that performs the action (or performs the action in conjunction with the specific module). Therefore, the specific module that performs an action can include the specific module itself that performs the action and / or another module that the specific module calls or otherwise accesses to perform the action.

[0188] It should also be understood that various techniques may be described herein in the general context of software hardware elements or program modules. Figure 7 The modules described can be implemented in hardware or in hardware in combination with software and / or firmware. For example, these modules can be implemented as computer program code / instructions, which are configured to be executed in one or more processors and stored in a computer-readable storage medium. Alternatively, these modules can be implemented as hardware logic / circuits. Hardware logic / circuits can include integrated circuit chips (which include processors (e.g., central processing units (CPU), microcontrollers, microprocessors, digital signal processors (DSP), etc.), memory, one or more communication interfaces, and / or one or more components in other circuits), and can optionally execute the received program code and / or include embedded firmware to perform functions.

[0189] The present application embodiment provides a computer device 800, such as Fig. 9 shown. Figure 8 An example configuration of a computer device 800 that can be used to implement the methods described herein is shown. For example, the above-mentioned time parameter determination apparatus 700 for battery testing can be fully or at least partially implemented by a computer device 800 or a similar device or system.

[0190] The computer device 800 may include at least one processor 805, memory 807, (multiple) communication interfaces 802, a display device 801, other input / output (I / O) devices 803, and one or more mass storage devices 806, which can communicate with each other, such as through a system bus 804 or other appropriate connections. The memory 807 stores instructions, which, when executed by the processor 805, cause the processor 805 to perform the method as described in the above embodiments.

[0191] Computer device 800 can be a variety of different types of devices. Examples of computer device 800 include, but are not limited to, desktop computers, server computers, laptop or netbook computers, mobile devices (e.g., tablet computers, cellular or other wireless phones (e.g., smart phones), notepad computers, mobile stations), wearable devices (e.g., glasses, watches), entertainment devices (e.g., entertainment appliances, set-top boxes communicatively coupled to display devices, game consoles), televisions or other display devices, automotive computers, and the like.

[0192] The processor 805 may be a single processing unit or multiple processing units, all of which may include a single or multiple computing units or multiple cores. The processor 805 may be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, state machines, logic circuits, and / or any device that manipulates signals based on operating instructions. Among other capabilities, the processor 805 may be configured to obtain and execute computer-readable instructions stored in the memory 807, mass storage device 806, or other computer-readable media, such as program codes of an operating system 808, program codes of an application program 809, program codes of other programs 810, and the like.

[0193] The memory 807 and the mass storage device 806 are examples of computer-readable storage media for storing instructions that are executed by the processor 805 to implement the various functions described above. For example, the memory 807 may generally include both volatile memory and non-volatile memory (e.g., RAM, ROM, etc.). In addition, the mass storage device 806 may generally include a hard disk drive, a solid-state drive, a removable medium, including external and removable drives, a memory card, a flash memory, a floppy disk, an optical disk (e.g., CD, DVD), a storage array, a network attached storage, a storage area network, etc. The memory 807 and the mass storage device 806 may all be collectively referred to herein as memory or computer-readable storage media, and may be a non-transitory medium capable of storing computer-readable, processor-executable program instructions as computer program code, which may be executed by the processor 805 as a specific machine configured to implement the operations and functions described in the examples herein.

[0194] A plurality of programs may be stored on the mass storage device 806. These programs include an operating system 808, one or more application programs 809, other programs 810, and program data 811, and they may be loaded into the memory 807 for execution. Examples of such application programs or program modules may include, for example, computer program logic (e.g., computer program code or instructions) for implementing the following components / functions: a time parameter determination device 700 for battery testing (including a parameter acquisition module 710, a sampling value acquisition module 720, a comparison module 730, and a parameter adjustment module 740), method 100 (including any suitable steps of method 100), method 200 (including any suitable steps of method 200), and / or other embodiments described herein.

[0195] Although in Figure 8 800 , but operating system 808 , application programs 809 , other programs 810 , and program data 811 , or portions thereof, may be implemented using any form of computer-readable media that can be accessed by computer device 800 .

[0196] One or more communication interfaces 802 are used to exchange data with other devices, such as through a network, a direct connection, etc. Such communication interfaces can be one or more of the following: any type of network interface (e.g., a network interface card (NIC)), a wired or wireless (such as IEEE 802.11 wireless LAN (WLAN)) wireless interface, a Worldwide Interoperability for Microwave Access (Wi-MAX) interface, an Ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a Bluetooth interface, a TM The communication interface 802 may include a wireless communication interface, a near field communication (NFC) interface, etc. The communication interface 802 may facilitate communication within a variety of network and protocol types, including wired networks (e.g., LAN, cable, etc.) and wireless networks (e.g., WLAN, cellular, satellite, etc.), the Internet, etc. The communication interface 802 may also provide for communication with external storage devices (not shown) such as in a storage array, a network attached storage, a storage area network, etc.

[0197] In some examples, a display device 801 such as a monitor may be included for displaying information and images to a user. Other I / O devices 803 may be devices that receive various inputs from a user and provide various outputs to the user, and may include a touch input device, a gesture input device, a camera, a keyboard, a remote control, a mouse, a printer, an audio input / output device, and the like.

[0198] The technology described herein can be supported by these various configurations of the computer device 800, and is not limited to the specific examples of the technology described herein. For example, the functionality can also be implemented in whole or in part on the "cloud" by using a distributed system. The cloud includes and / or represents a platform for resources. The platform abstracts the underlying functions of the hardware (e.g., server) and software resources of the cloud. Resources can include applications and / or data that can be used when performing computing processing on a server away from the computer device 800. Resources can also include services provided over the Internet and / or through a subscriber network such as a cellular or Wi-Fi network. The platform can abstract resources and functions to connect the computer device 800 to other computer devices. Therefore, the implementation of the functions described herein can be distributed throughout the cloud. For example, the functions can be implemented partially on the computer device 800 and partially through a platform that abstracts the functions of the cloud.

[0199] An embodiment of the present application also provides a computer-readable storage medium having instructions stored thereon. When the instructions are executed individually or collectively by one or more processors of a computing device, the computing device executes a method as described in any of the above embodiments.

[0200] Computer-readable storage media include volatile and nonvolatile, removable and non-removable media implemented by any method or technology for storing information, such as computer-readable instructions, data structures, program modules or other data. Computer-readable storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD), or other optical storage devices, magnetic cassettes, magnetic tapes, magnetic disk storage devices or other magnetic storage devices, or any other non-transmission media that can be used to store information for access by a computer device.

[0201] An embodiment of the present application also provides a computer program product, including instructions, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to execute a method as described in any of the above embodiments.

[0202] Fig.10 This is a flow chart of a method for determining time parameters of a battery test according to some embodiments of the present application. Fig.10 According to some embodiments of the present application, a method for determining a time parameter of a battery test is provided. In the method for determining a time parameter:

[0203] Obtain the product parameters of the battery under test, including but not limited to the battery package leakage rate coefficient, free volume coefficient, product specification coefficient, etc.

[0204] The test condition parameters and the first time parameters are determined based on the obtained product parameters of the battery. The test condition parameters include a preset pressure threshold corresponding to the pre-charging stage, a balance judgment threshold corresponding to the balance stage, a rest judgment threshold corresponding to the rest stage, and a detection judgment threshold corresponding to the test stage. The first time parameters include inflation time, balance time, rest time, and test time.

[0205] The method first proceeds to the first pre-charging stage, i.e., high-pressure fast charging, using high-pressure gas to inflate the product end and the standard end until the air pressure in the product end and the standard end reaches the preset pressure corresponding to the first pre-charging stage, and then enters the second pre-charging stage.

[0206] The second pre-charging stage is a low-pressure slow charging stage, in which low-pressure gas is used to inflate the product end and the standard end to alleviate the pressure changes in the product end and the standard end caused by the closure of the high-pressure inflation valve, until the air pressure in the product end and the standard end reaches the preset pressure corresponding to the second pre-charging stage, and then enters the inflation stage.

[0207] During the inflation phase, the product end and the standard end are inflated in a manner that maintains a constant internal pressure at the product end until the preset inflation time is reached, and then the balancing phase is entered.

[0208] In the balance stage, no external gas is filled into the standard end and the product end, but the intercommunication valve connecting the two is still in an open state, that is, the standard end and the product end are interconnected. At this time, the gases in the standard end and the product end will gradually mix and tend to stabilize. When the time of the balance stage reaches the preset balance time, the current pressure drop value inside the product end (i.e., the battery) is obtained as the first sampling value. The first sampling value is compared with the preset balance judgment threshold. The first sampling value less than or greater than the balance judgment threshold is considered to be the result "NG". Specifically, if the first sampling value is greater than the balance judgment threshold, it means that the current pressure drop inside the battery has not met expectations. This situation may be caused by insufficient time in the previous inflation stage or the balance stage, and the pressure drop inside the battery has not reached a stable state. At least one of the inflation time and the balance time in the first time parameter group can be adjusted to make the battery state more stable, thereby obtaining a more accurate pressure drop value for judging the sealing performance of the battery and improving the accuracy of the detection. If the first sampling value is less than the balance judgment threshold, it means that the current voltage drop inside the battery meets the design requirements. There may be a problem of excess detection time, which is not conducive to improving the detection efficiency. Therefore, the corresponding first operation can also be performed to adjust at least one of the inflation time and the balance time in the first time parameter group, optimize the time corresponding to different stages in the first time parameter group, and further improve the detection efficiency. Use the adjusted time of the corresponding stage to update the corresponding time in the first time parameter group.

[0209] Afterwards, the updated first time parameter group is used to complete the pre-charging stage, the inflation stage, the balance stage and reach the static stage. In the static stage, the intercommunication valve connecting the standard end and the product end is closed, and the gas in the standard end and the product end is isolated from each other. Since the air pressure in the standard end is maintained constant, and there is a leak in the product end, there will be a pressure difference between the two. When the time of the static stage reaches the preset static time, the current pressure drop value inside the product end (i.e., the battery) is obtained as the second sampling value. The second sampling value is compared with the static judgment threshold. Similar to the balance stage, the second sampling value less than or greater than the static judgment threshold is considered to be the result "NG". Specifically, if the second sampling value is greater than the static judgment threshold, it means that the current pressure drop inside the battery fails to meet expectations. This situation may be caused by the fact that the duration of the previous inflation stage, the balance stage or the static stage is not enough, and the pressure drop inside the battery fails to reach a stable state. At least one of the inflation time, the balance time and the static time in the first time parameter group can be adjusted so that the state of the battery can be more stable, thereby obtaining a more accurate pressure drop value for judging the sealing performance of the battery and improving the accuracy of the detection. If the second sampling value is less than the static judgment threshold, it means that the current voltage drop inside the battery meets the design requirements, but there may be a problem of excess detection time, which is not conducive to improving the detection efficiency. Therefore, the corresponding second operation can also be performed to adjust at least one of the inflation time, balance time and static time in the first time parameter group, optimize the time corresponding to different stages in the first time parameter group, and further improve the detection efficiency. Use the adjusted time of the corresponding stage to update the corresponding time in the first time parameter group.

[0210] Afterwards, the updated first time parameter group is used to complete the pre-charging stage, the inflation stage, the balancing stage, the rest stage and reach the test stage. When the time of the test stage reaches the preset test time, the test capability index Cg of the battery test at this time can be calculated as the third sampling value. The third sampling value is compared with the detection judgment threshold. The third sampling value is less than or greater than the detection judgment threshold and is considered to be the result "NG". Specifically, if the third sampling value is less than the detection judgment threshold, it means that the stability of the current battery test fails to meet expectations. This may be caused by the insufficient duration of the previous inflation stage or the balancing stage or the rest stage or the test time. At least one of the test time, inflation time, balancing time and rest time in the first time parameter group can be adjusted to make the battery state more stable. If the third sampling value is greater than the detection judgment threshold, it means that the stability of the current battery test meets the design requirements, but there may be a problem of excess detection time, which is not conducive to the improvement of detection efficiency. Therefore, at least one of the test time, inflation time, balancing time and rest time in the first time parameter group can also be adjusted to optimize the time corresponding to different stages in the first time parameter group to further improve the detection efficiency. The corresponding time in the first time parameter group is updated using the adjusted time of the corresponding stage, and the time parameters in the updated first time parameter group are used as the determined time parameters of the battery test, and the steps are ended.

[0211] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for determining time parameters of a battery test, wherein the battery test includes a gas filling phase and a balance phase performed after the gas filling phase, characterized in that: include: Acquire test condition parameters and a first time parameter group required for the test, wherein the test condition parameters include a balance judgment threshold corresponding to the balance stage, and the first time parameter group includes an inflation time corresponding to the inflation stage and a balance time corresponding to the balance stage; Acquire a voltage drop value of the battery after the battery completes the charging stage and the balancing stage based on the test condition parameter and the first time parameter group as a first sampling value; comparing the first sampling value with the balance judgment threshold; as well as In response to the first sampling value being unequal to the balance judgment threshold, a first operation is performed, wherein the first operation includes adjusting at least one of the inflation time and the balance time to update the first time parameter group.

2. The method according to claim 1, characterized in that The first operation includes: In response to a comparison result between the first sampling value and the balance judgment threshold being a first result, adjusting at least one of the inflation time and the balance time to obtain a second time parameter group; Updating the first sampling value according to the second time parameter group; comparing the first sampling value with the balance judgment threshold; and The above steps are repeated until a comparison result between the first sampling value and the balance judgment threshold is a second result, wherein the first result is different from the second result.

3. The method according to claim 2, characterized in that The adjusting at least one of the inflation time and the balancing time comprises: At least one of the inflation time and the equilibration time is increased or decreased by a first fixed value.

4. The method according to claim 2, characterized in that: The adjusting at least one of the inflation time and the balancing time comprises: In response to the balancing time being within a preset range, increasing or decreasing the balancing time by a second fixed value, In response to the balancing time being outside of a preset range, the inflation time is increased or decreased by a third fixed value.

5. The method according to any one of claims 2 to 4, characterized in that The method further comprises: In response to the first result indicating that the first sampling value is less than or equal to the balance judgment threshold, and the second result indicating that the first sampling value is greater than the balance judgment threshold, updating the first time parameter group using the second time parameter group corresponding to the last time the comparison result was the first result; In response to the first result indicating that the first sampling value is greater than the balance judgment threshold, and the second result indicating that the first sampling value is less than or equal to the balance judgment threshold, the second time parameter group corresponding to the second result when the comparison result is the first time updated the time of the corresponding stage in the first time parameter group.

6. The method according to any one of claims 1 to 5, characterized in that The battery test further includes a rest phase after the balancing phase, the first time parameter group further includes a rest time, the test condition parameter further includes a rest judgment threshold corresponding to the rest phase, and the method further includes: Acquire a voltage drop value of the battery after the battery completes the charging stage, the balancing stage, and the resting stage based on the test condition parameters and the first time parameter group as a second sampling value; comparing the second sampling value with the static determination threshold; and In response to the second sampling value being not equal to the static judgment threshold, a second operation is performed, wherein the second operation includes adjusting at least one of the inflation time, the balance time, and the static time to update the first time parameter group.

7. The method according to claim 6, characterized in that The second operation includes: In response to a comparison result between the second sampling value and the static judgment threshold being a third result, adjusting at least one of the inflation time, the balancing time, and the static time to obtain a third time parameter group; Updating the second sampling value according to the third time parameter group; comparing the second sampling value with the static determination threshold; and Repeat the above steps until the comparison result of the second sampling value and the static determination threshold is a fourth result, wherein the third result is different from the fourth result.

8. The method according to claim 7, characterized in that The adjusting at least one of the inflation time, the balance time and the rest time comprises: A fourth fixed value is increased or decreased for at least one of the inflation time, the balancing time, and the rest time.

9. The method according to claim 7, characterized in that: The adjusting at least one of the inflation time, the balance time and the rest time comprises: In response to the static time being within the preset range, increasing or decreasing the static time by a fifth fixed value, In response to the rest time being outside its preset range, at least one of the inflation time and the balancing time is increased or decreased by a sixth fixed value.

10. The method according to claim 9, characterized in that In response to the static time being outside a preset range, increasing or decreasing a sixth fixed value for at least one of the inflation time and the balancing time comprises: In response to the inflation time being within a preset range, increasing or decreasing the inflation time by a sixth fixed value, In response to the inflation time being outside its preset range, the balancing time is increased or decreased by a sixth fixed value.

11. The method according to any one of claims 7 to 10, characterized in that The method further comprises: In response to the third result indicating that the second sampling value is less than or equal to the static judgment threshold, and the fourth result indicating that the second sampling value is greater than the static judgment threshold, the time of the corresponding stage in the first time parameter group is updated using the third time parameter group corresponding to the last time when the comparison result is the third result; In response to the third result indicating that the second sampling value is greater than the static judgment threshold, the fourth result indicates that the second sampling value is less than or equal to the static judgment threshold, the third time parameter group corresponding to the fourth result when the comparison result is first used to update the time of the corresponding stage in the first time parameter group.

12. The method according to any one of claims 6 to 11, characterized in that The battery test further includes a test phase performed after the rest phase, the first time parameter group further includes a test time, the test condition parameter further includes a test capability threshold as a detection judgment threshold, and the method further includes: Obtaining N voltage drop values ​​after the battery completes N battery tests based on the test condition parameters and the first time parameter group, determining a test capability index Cg according to the N voltage drop values, and using the test capability index Cg as a third sampling value, wherein N is an arbitrary positive integer; comparing the third sampling value with the detection judgment threshold; and In response to the third sampling value being unequal to the detection judgment threshold, a third operation is performed, wherein the third operation includes adjusting at least one of the inflation time, the balance time, the static time, and the test time to update the first time parameter group.

13. The method according to claim 12, characterized in that The third operation includes: In response to a comparison result between the third sampling value and the detection judgment threshold being a fifth result, adjusting at least one of the inflation time, the balancing time, the rest time, and the test time to obtain a fourth time parameter group; Updating the third sampling value according to the fourth time parameter group; comparing the third sampling value with the detection judgment threshold; and Repeat the above steps until the comparison result of the third sampling value and the detection judgment threshold is a sixth result, wherein the fifth result is different from the sixth result.

14. The method according to claim 13, characterized in that The adjusting at least one of the inflation time, the balancing time, the rest time and the test time comprises: A seventh fixed value is increased or decreased for at least one of the inflation time, the balancing time, the rest time, and the test time.

15. The method according to claim 13, characterized in that The adjusting at least one of the inflation time, the balancing time, the rest time and the test time comprises: In response to the test time being within a preset range, increasing or decreasing the test time by an eighth fixed value, In response to the test time being outside its preset range, at least one of the inflation time, the balancing time and the rest time is increased or decreased by a ninth fixed value.

16. The method according to claim 15, characterized in that In response to the test time being outside its preset range, increasing or decreasing a ninth fixed value for at least one of the inflation time, the balancing time, and the rest time comprises: In response to the inflation time being within the preset range, increasing or decreasing the inflation time by a ninth fixed value, In response to the inflation time being outside its preset range, at least one of the balancing time and the resting time is increased or decreased by a ninth fixed value.

17. The method according to claim 16, characterized in that In response to the inflation time being outside a preset range, increasing or decreasing a ninth fixed value of at least one of the balancing time and the resting time comprises: In response to the balancing time being within a preset range, increasing or decreasing the balancing time by a ninth fixed value, In response to the balancing time being outside a preset range, the rest time is increased or decreased by a ninth fixed value.

18. The method according to any one of claims 13 to 17, characterized in that The method further comprises: In response to the fifth result indicating that the third sampling value is greater than or equal to the detection judgment threshold, and the sixth result indicating that the third sampling value is less than the detection judgment threshold, the fourth time parameter group corresponding to the last time the comparison result is the fifth result is used to update the time of the corresponding stage in the first time parameter group; In response to the fifth result indicating that the third sampling value is less than the detection judgment threshold, the sixth result indicating that the third sampling value is greater than or equal to the detection judgment threshold, the fourth time parameter group corresponding to the sixth result when the comparison result is first used to update the time of the corresponding stage in the first time parameter group.

19. The method according to any one of claims 1 to 18, characterized in that The method further comprises: Acquire product parameters of the battery, wherein the product parameters include one or more of product free volume, test specifications, and product leakage rate; The test condition parameters and the first time parameter group are determined according to the product parameters.

20. The method according to any one of claims 1 to 20, characterized in that The battery test further includes a pre-filling stage prior to the filling stage, the pre-filling stage being configured to be cut off based on a preset pressure, and the filling stage being configured to fill in a manner to keep the internal pressure of the battery constant.

21. The method according to claim 20, characterized in that The pre-filling stage includes a first pre-filling stage and a second pre-filling stage, the second pre-filling stage is after the first pre-filling stage, and the inflation pressure of the second pre-filling stage is lower than the inflation pressure of the first pre-filling stage.

22. A device for determining time parameters of a battery test, wherein the battery test comprises a gas filling phase and a balance phase performed after the gas filling phase, characterized in that: include: a parameter acquisition module, configured to acquire test condition parameters and a first time parameter group required for the test, wherein the test condition parameters include a balance judgment threshold corresponding to the balance stage, and the first time parameter group includes an inflation time corresponding to the inflation stage and a balance time corresponding to the balance stage; a sampling value acquisition module, configured to acquire, as a first sampling value, a voltage drop value of the battery after the battery completes the charging stage and the balancing stage based on the test condition parameter and the first time parameter group; a comparison module, configured to compare the first sampling value with the balance judgment threshold; as well as The parameter adjustment module is configured to execute a first operation in response to the first sampling value being not equal to the balance judgment threshold, wherein the first operation includes adjusting at least one of the inflation time and the balance time to update the first time parameter group.

23. A computer device, characterized in that: include: at least one processor; as well as At least one memory is communicatively connected to the at least one processor, the at least one memory stores instructions, and when the instructions are executed by the at least one processor individually or collectively, the computing device performs the method of any one of claims 1 to 21.

24. A computer-readable storage medium, characterized in that: Instructions are stored, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to perform the method of any one of claims 1 to 21.

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