Battery pack production line control method and device and electronic equipment

Abstract

The embodiment of the invention provides a battery pack production line control method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: obtaining a first size parameter of at least one group of first battery products produced by production equipment corresponding to a battery pack manufacturing process for at least one battery pack manufacturing process of a battery pack production line; the first size parameter is acquired by a first acquisition system corresponding to the production equipment; inputting the first size parameters of the at least one group of first battery products into a preset manufacturing process parameter model, and calculating manufacturing process parameters corresponding to the battery pack manufacturing process; under the condition that the manufacturing process parameters meet the first preset condition, production equipment corresponding to the battery pack manufacturing process is adjusted, closed-loop control is conducted on the battery pack manufacturing process while the battery pack manufacturing capacity of a production line is comprehensively considered, and the optimal state of the battery pack production line is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of batteries, and in particular, relates to a battery pack production line control method, device, electronic equipment and computer-readable storage medium. Background Art

[0002] With the development of battery technology and the maturity of processes, the size requirements for battery pack products produced by battery pack production lines are becoming increasingly higher.

[0003] The current process of improving the quality of battery pack product size by optimizing the battery pack production line is to compare the size of the battery pack produced by the battery pack production line with the size of the standard battery pack, and change the process on the battery pack production line according to the comparison results to improve the size quality of the produced battery pack.

[0004] However, since the size of a standard battery pack only represents the length, width and height of the standard battery pack, comparing the size of the battery pack produced by the battery pack production line with the size of the standard battery pack can only reflect the difference in size between the battery pack produced by the battery pack production line and the standard battery pack, thus resulting in inaccurate production line adjustments. Summary of the invention

[0005] The present invention provides a battery pack production line control method, device, electronic device and computer-readable storage medium to solve the problem of inaccurate production line adjustment.

[0006] In order to solve the above-mentioned technical problems, the present invention is achieved as follows:

[0007] In a first aspect, the present invention provides a battery pack production line control method, the method comprising:

[0008] For at least one battery pack process of a battery pack production line, obtaining first size parameters of at least one group of first battery products produced by production equipment corresponding to the battery pack process; the first size parameters are acquired by a first acquisition system corresponding to the production equipment;

[0009] Inputting the first size parameters of the at least one group of first battery products into a preset manufacturing process parameter model to calculate the manufacturing process parameters corresponding to the battery pack manufacturing process;

[0010] When the manufacturing process parameters meet the first preset conditions, the production equipment corresponding to the battery pack process is adjusted.

[0011] In a second aspect, the present invention provides a battery pack production process production line control device, the device comprising:

[0012] A first size acquisition module is used to acquire, for at least one battery pack process of a battery pack production line, first size parameters of at least one group of first battery products produced by a production device corresponding to the battery pack process; the first size parameters are acquired by a first acquisition system corresponding to the production device;

[0013] A first parameter determination module, used to input the first size parameter of the at least one group of first battery products into a preset manufacturing process parameter model to calculate the manufacturing process parameters corresponding to the battery pack manufacturing process;

[0014] The adjustment module is used to adjust the production equipment corresponding to the battery pack process when the manufacturing process parameters meet the first preset conditions.

[0015] In a third aspect, the present invention provides an electronic device comprising: a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned battery pack production process production line method when executing the program.

[0016] In a fourth aspect, the present invention provides a readable storage medium, which, when the instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to execute the above-mentioned battery pack production process production line method.

[0017] In an embodiment of the present invention, for at least one battery pack process of a battery pack production line, the first size parameter of at least one group of first battery products produced by the production equipment corresponding to the battery pack process is obtained; the first size parameter is acquired by a first acquisition system corresponding to the production equipment; the first size parameter of the at least one group of first battery products is input into a preset manufacturing process parameter model to calculate the manufacturing process parameter corresponding to the battery pack process; when the manufacturing process parameter meets the first preset condition, the production equipment corresponding to the battery pack process is adjusted. In an embodiment of the present invention, the manufacturing process parameter is obtained based on at least one group of first size parameters produced by at least one battery pack process. Since the manufacturing process parameter is used to reflect the manufacturing capacity of the production line to manufacture battery packs, the stability and process capacity of the battery production line are monitored in real time through the manufacturing process parameters of the production line to control data changes, and based on the first size parameter output by each battery pack process, the battery pack process corresponding to the first size parameter is closed-loop controlled to ensure the optimal state of the battery pack production line, and the battery pack production line can be adjusted more accurately so that the battery packs subsequently produced based on the batch of incoming materials meet the size quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of a battery pack production line control system provided by an embodiment of the present invention;

[0020] Figure 2 This is one of the step flow charts of a battery pack production line control method provided by an embodiment of the present invention;

[0021] Figure 3 This is a second step flow chart of a battery pack production line control method provided by an embodiment of the present invention;

[0022] Figure 4 This is a step flow chart of a battery pack production line control method provided by an embodiment of the present invention;

[0023] Figure 5 is a structural diagram of a battery pack production line control device provided by an embodiment of the present invention;

[0024] Figure 6 It is a structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1 , showing a structural schematic diagram of a battery pack production line control system 10 provided in an embodiment of the present invention.

[0027] In the implementation of the present invention, the battery pack production line control system 10 is used to detect the working condition of the battery pack production line and control the production equipment of the battery pack production line.

[0028] The battery pack production line includes at least one production equipment, each of which is used to perform at least one battery pack process. After the material is transferred to the battery pack production line, the battery pack production line processes and transfers the material based on the battery pack process. The battery pack process includes at least one process, which includes a processing process or a transfer process. When the battery pack process includes multiple processes, the multiple processes are executed in sequence according to a preset order.

[0029] The processing procedure is used to process material products, and the materials include incoming materials and / or intermediate batteries, wherein the incoming materials are the means of production received at the input end of the battery pack production line, and the means of production are, for example, at least one of battery cells, battery cells, connectors, casings, battery management systems BMS, and insulating materials, and the intermediate battery products are the products processed during the production process of the battery pack production line, such as products after stacking battery cells, products after installing the battery management system BMS, and products after installing the connector. The transmission procedure is used to transmit materials and the target battery products output by the battery pack production line after executing all battery pack processes, so as to facilitate the circulation and storage of materials and target battery products in the battery pack production line. Therefore, when the production equipment executes the battery pack process, the production equipment can at least receive the incoming materials or intermediate battery products through the transmission procedure, or at least transmit the intermediate battery products to the next production equipment through the transmission procedure, or at least transmit the target battery products through the transmission procedure, or at least process the incoming materials or the intermediate battery products corresponding to the previous processing procedure through the current processing procedure to obtain the intermediate battery products corresponding to the current processing procedure. For example, the first production equipment of the battery pack production line executes the battery pack process corresponding to the first production equipment: receiving incoming materials; the second production equipment of the battery pack production line executes the battery pack process corresponding to the second production equipment: processing the incoming materials to obtain intermediate battery products, and transmitting the intermediate battery products to the third production equipment; the third production equipment executes the battery pack process corresponding to the third production equipment: receiving the intermediate battery products transmitted by the second production equipment, processing the intermediate battery products transmitted by the second production equipment to obtain the intermediate battery products corresponding to the third production equipment; the fourth production equipment executes the battery pack process corresponding to the fourth production equipment: transmitting the intermediate battery products processed by the third production equipment, processing the intermediate battery products processed by the third production equipment to obtain the intermediate battery products processed by the fourth production equipment, and transmitting the intermediate battery products processed by the fourth production equipment to the fifth production equipment, and so on until the last production equipment of the battery pack production line outputs the target battery product.

[0030] The battery pack manufacturing process executed by each production device can be adjusted according to production needs, and the examples of the present invention are not limited to this.

[0031] The production equipment includes: automated conveying equipment: responsible for transferring materials and / or target battery products between various stations on the production line; assembly equipment: including battery cell stacking machines and module assembly machines, used to assemble battery cells into battery packs; welding equipment: used for series and parallel connections between battery cells and connection wires; packaging and storage equipment: used for packaging and storing battery modules and battery packs. The specific form of the production equipment can be implemented based on robots and servo modules. The present invention does not limit the specific form of the production equipment.

[0032] In the example of the present invention, the battery pack production line control system 10 includes: an equipment management system MMS11, a production management system MES12, an online dimension detection system inline PCD13, an automatic dimension detection system APMT14, and a first controller 15.

[0033] The online size detection system is at least one of an image acquisition system, an ultrasonic distance measurement acquisition system, a laser distance measurement acquisition system, a temperature detection system, and a quality detection system. The online size detection system collects battery pack data including at least one of the quality, size, temperature, identification code, and process corresponding to the intermediate battery product. That is, the online size detection system can collect data for any intermediate battery product after the production equipment performs the processing procedure, and obtain the battery pack data. That is, the online size detection system can collect the quality, size, temperature, and identification code of the intermediate battery products corresponding to multiple battery pack processes.

[0034] After the online size detection system collects the battery pack data, it will provide the battery pack data to the production management system.

[0035] The automatic size detection system is at least one of an image acquisition system, an ultrasonic distance measurement acquisition system, a laser distance measurement acquisition system, a temperature detection system, and a quality detection system. The automatic size detection system is used to collect battery products output from the battery pack production line. The battery pack data collected by the automatic size detection system may include at least one of the quality, size, temperature, identification code, and process of the battery pack. Therefore, the battery product collected by the automatic size detection system is located after the battery product collected by the online size detection system. Specifically, the automatic size detection system can collect battery pack data of intermediate battery products at the end of the battery pack production line, such as the battery product processed by the battery pack production line in the last processing step, or in the production equipment that performs the last transmission step. After the automatic size detection system collects the battery pack data, it will provide the battery pack data to the production management system.

[0036] The identification code is the identity data of the battery product and is used to distinguish different specifications of battery products, and different battery products under the same specification. In the embodiment of the present invention, the identification code can be set on the incoming material or the identification code can be added to the intermediate battery product by the production equipment.

[0037] In the examples of the present invention, the specific forms of the online size detection system and the automatic size detection system are not limited.

[0038] The production management system is used to store the battery pack data collected by the online size detection system and the battery pack data collected by the automatic size detection system. When the equipment management system needs the battery pack data collected by the online size detection system and / or the battery pack data collected by the automatic size detection system, the production management system will provide the battery pack data collected by the online size detection system and / or the battery pack data collected by the automatic size detection system to the equipment management system.

[0039] The production management system can aggregate the battery pack data with the same identification code, so that the equipment management system can obtain the battery pack data collected by the online size detection system and the battery pack data collected by the automatic size detection system corresponding to the identification code according to the identification code.

[0040] The equipment management system obtains the battery pack data collected by the online size detection system and the battery pack data collected by the automatic size detection system from the production management system, and analyzes the battery pack data to obtain analysis results. The equipment management system is also used to notify the first controller to control the production equipment based on the analysis results.

[0041] Figure 2 is a flowchart of a method for controlling a battery pack production line provided by an embodiment of the present invention, which is applied to an equipment management system, such as Figure 2 As shown, the method may include:

[0042] Step 101: for at least one battery pack process of a battery pack production line, obtain first dimensional parameters of at least one group of first battery products produced by production equipment corresponding to the battery pack process; the first dimensional parameters are acquired by a first acquisition system corresponding to the production equipment.

[0043] In the example of the present invention, the first battery product is an intermediate battery product obtained after the production equipment executes the battery pack process, and the first acquisition system is an online size detection system.

[0044] Since the online size detection system can collect data for any intermediate battery product after the production equipment performs the processing steps to obtain the battery pack data, the first collection system can collect the first size parameters of the intermediate battery product produced by the production equipment performing the battery pack process, and at the same time record the identification code of the first battery product and the battery pack process corresponding to the first size parameters. When the first collection system collects the first size parameters of the first battery product, it can collect at least one group of first battery products produced by the same production equipment performing the battery pack process, and can also collect at least one group of first battery products produced by different production equipment performing different battery pack processes.

[0045] The first acquisition system sends the identification code of the first battery product, the first size parameter of the first battery product, and the battery pack process corresponding to the first size parameter to the production management system, so that the production management system stores and forwards it to the equipment management system. Therefore, the equipment management system can obtain at least one set of first size parameters of the first battery product produced by the production equipment corresponding to at least one battery pack process.

[0046] The first size parameter is the distance between two points in the first battery product, such as the length, width, and height of the first battery product, the distance between different electrodes on the first battery product, the width of the electrode of the first battery product, the height of the electrode of the first battery product, the depth of the groove on the first battery product, the height of the protrusion on the first battery product, the thickness of the insulating material, the installation position of the connector of the first battery product, the thickness of the welding point of the first battery product, and the width of the welding point. In the examples of the present invention, the specific situation of the first size parameter is not limited.

[0047] Step 102: input the first size parameters of the at least one group of first battery products into a preset manufacturing process parameter model to calculate the manufacturing process parameters corresponding to the battery pack manufacturing process.

[0048] The manufacturing process parameters are used to reflect the manufacturing capability of the production line in producing battery packs. The manufacturing process parameters include: process capability index and process capability index.

[0049] The production process parameter model includes the formula of the process capability index CPK and the formula of the process capability index CP, wherein the formula of the process capability index CPK is:

[0050] CPK=MIN(USL-μ,μ-LSL) / (3*σ);

[0051] The formula for process capability index CP is:

[0052] CP = (USL - LSL) / (6*σ);

[0053] Where USL is the upper specification limit of the object, LSL is the lower specification limit of the object, σ is the standard deviation of the population data, and μ is the mean of the sampled data.

[0054] Since the cost of calculating the standard deviation of the overall data is relatively high, the value of σ is usually the standard deviation of the sampled data. Therefore, in the example of the present invention, the value of σ is the standard deviation of the sampled data.

[0055] In the example of the present invention, the upper specification limit and the lower specification limit of the object are set as needed, and the upper specification limits of the objects corresponding to different processes are different, and the lower specification limits of the objects corresponding to different processes are different.

[0056] The specifications of the object include: the qualified range of the distance between two points of the battery product. The upper limit of the specification of the object is the maximum value in the qualified range of the distance between two points of the battery product, and the upper limit of the specification of the object is the minimum value in the qualified range of the distance between two points of the battery product. Since the upper and lower limits of the specifications of the objects corresponding to different processes are different, for the first size parameter, the lower limit of the specification of the object is the lower limit of the qualified range corresponding to the value of the first size parameter, and the upper limit of the specification of the object is the upper limit of the qualified range corresponding to the value of the first size parameter.

[0057] In the example of the present invention, the upper and lower specification limits corresponding to the first dimension parameter can be determined based on the first dimension parameter. Specifically, the corresponding relationship between each first dimension parameter and the battery pack process is set in the production file, and each battery pack process processes the qualified range of the first dimension parameter. The production file can be configured in the battery pack production line control system. For example, after the production management system obtains the battery pack data, it can summarize the battery pack data into the production file.

[0058] The equipment management system can call the production file, query the battery pack data in the production file based on the identification code, and obtain the first size parameters of at least one group of first battery products produced by the production equipment corresponding to at least one battery pack process, as well as the USL and LSL corresponding to the first size parameters.

[0059] At the same time, the equipment management system takes at least one group of first dimensional parameters of the first battery product as sampling data, calculates the average value μ of the sampling data, and the standard deviation of the sampling data, and then uses the formula of the process capability index and the formula of the process capability index to calculate the process capability index and the process capability index corresponding to the sampling data.

[0060] Step 103: When the manufacturing process parameters meet the first preset conditions, adjust the control parameters of the production equipment corresponding to the battery pack process; the control parameters include: at least one of the operation position, operation time, and operation angle.

[0061] In the example of the present invention, the first preset condition is also pre-configured. For example, the first preset condition can be configured in the equipment management system. For example, the first preset condition is pre-configured in the production file. After the equipment management system calls the production file, it obtains the first preset condition according to the production file.

[0062] In the example of the present invention, in order to accurately adjust the production equipment, the equipment management system needs to determine whether the manufacturing process parameters meet the first preset conditions after obtaining the manufacturing process parameters. When the manufacturing process parameters meet the first preset conditions, it indicates that there is a need to adjust the production equipment, so that the production equipment can be accurately adjusted.

[0063] Optionally, when the manufacturing process parameter meets the first preset condition, adjusting the production equipment corresponding to the battery pack process includes:

[0064] When the process capability index is less than the first preset threshold value, the process capability index is greater than the second preset threshold value, and the process capability index is greater than the third preset threshold value, the production equipment corresponding to the battery pack process is adjusted.

[0065] Optionally, when the process capability index is greater than or equal to a first preset threshold, the production equipment is not adjusted; when the process capability index is less than the first preset threshold, it is determined whether the process capability index is greater than a second preset threshold; and the second preset threshold is less than the first preset threshold.

[0066] In the example of the present invention, when the process capability index is greater than or equal to the first preset threshold, it means that the size of the product produced by the battery pack production line is good and there is no need to adjust the production equipment. When the process capability index is less than the first preset threshold, it is necessary to further determine whether the process capability index is greater than the second preset threshold and comprehensively consider whether the production equipment needs to be adjusted.

[0067] In the example of the present invention, the battery pack process includes at least one processing step and at least one transmission step. For other situations where the battery pack process includes at least one process, reference can be made to the example of the present invention. Therefore, in the example of the present invention, when adjusting the production equipment, the control parameters of the production equipment can be adjusted, and the control parameters include: at least one of the operating position, operating time, and operating angle. The operating position is the position of the production equipment when the production equipment obtains the material, and it can also be the position of the production equipment when the material is placed at the workstation, or it can be the position of the production equipment when the material is processed; the operating time is the time when the production equipment obtains the material, and it can also be the time when the material is placed at the workstation, or it can be the time when the material is processed; the operating angle is the angle of the production equipment when the production equipment obtains the material, and it can also be the angle of the production equipment when the material is placed at the workstation, or it can be the time when the production equipment processes the material. For example, when adjusting the control parameters of the automated conveying equipment, the position of the automated conveying equipment when the automated conveying equipment obtains the material and the position of the production equipment when the material is placed at the workstation can be changed. Similarly, when adjusting the welding equipment, the position, time, and angle of the welding equipment during processing can be changed.

[0068] Optionally, step 103 adjusts the production equipment corresponding to the battery pack process, including:

[0069] Step 1031: Obtain a standard value corresponding to the first size parameter according to the first size parameter.

[0070] When setting the qualified range of dimensions of each battery pack process in the production file, the standard value of the dimensions of each battery pack process can also be set. That is, the generated file also configures the standard value of the battery product produced by the battery pack process corresponding to the first dimension parameter. Therefore, after obtaining the first dimension parameter, the equipment management system can obtain the standard value corresponding to the first dimension parameter based on the generated file.

[0071] Step 1032: Subtract the standard value from the average value of the first size parameter corresponding to the first battery product to obtain a control compensation value.

[0072] The formula for controlling the compensation value is as follows:

[0073]

[0074] Among them, inline PCD i is the first size parameter corresponding to the ith first battery product of at least one group of first battery products, n is the number of at least one group of battery products, and a is the standard value.

[0075] Step 1033: Adjust control parameters of production equipment corresponding to the battery pack process according to the control compensation value.

[0076] When adjusting the production equipment, the equipment management system determines the control compensation value for the production equipment based on the average value of at least one set of first dimensional parameters and the standard value of at least one set of first dimensional parameters, so that the size of each first battery product output by the production equipment after adjustment according to the control compensation value is more in line with the qualified range.

[0077] Optionally, after step 1032, the method further includes:

[0078] Step 1034, determining whether the control compensation value is within a preset compensation range.

[0079] After obtaining the control compensation value, it can be determined whether the control compensation value is within the preset compensation range, thereby avoiding the situation where the compensation capacity of the production equipment is limited and the size requirements cannot be met even if the production equipment is compensated according to the control compensation value; or the control compensation value is too small and the battery pack production line does not change much even if the production equipment is compensated according to the control compensation value.

[0080] In an example of the present invention, when the production equipment is adjusted according to the first size parameters corresponding to a plurality of battery pack processes, the compensation ranges corresponding to different battery pack processes are different.

[0081] Step 1035, when the control compensation value is within the compensation range, enter the step of adjusting the production equipment corresponding to the battery pack process according to the control compensation value.

[0082] When the control compensation value is within the compensation range, it indicates that the qualified range requirement can be met after compensation. Therefore, the step of adjusting the production equipment corresponding to the battery pack process according to the control compensation value is entered.

[0083] Optionally, when the control compensation value is within the compensation range, the equipment management system uses a production simulation function to simulate the adjustment of the production equipment corresponding to the battery pack process based on the control compensation value, and obtains the simulated production process parameters of the first battery product. If the simulated production process parameters of the first battery product meet the first preset conditions, the step of adjusting the production equipment corresponding to the battery pack process according to the control compensation value is entered.

[0084] In the example of the present invention, when the control compensation value is obtained, the result of adjusting the production equipment corresponding to the battery pack process based on the control compensation value can be predicted through simulation. If the simulated production of the first battery product manufacturing process parameters meets the first preset condition, it means that the effect of adjusting the production equipment is good, and the production equipment can be adjusted to adjust the battery pack production line more accurately and intelligently.

[0085] Step 1036: When the control compensation value is not within the compensation range, no compensation is performed on the production equipment.

[0086] When the control compensation value is not within the compensation range, it means that the control compensation value is too small. Even if the production equipment is compensated according to the control compensation value, the change of the battery pack production line is not significant. Therefore, the production equipment is not compensated.

[0087] Optionally, in step 1033, the following steps are included:

[0088] Step 10331: The equipment management system sends the control compensation value to the first controller corresponding to the battery pack process; the first controller is used to control the control parameters of the production equipment to adjust according to the control compensation value.

[0089] In the example of the present invention, the production equipment corresponds to a first controller, and the first controller is used to control the control parameters of the production equipment to be adjusted according to the control compensation value. Therefore, after the equipment management system obtains the control compensation value, the equipment management system can send the compensation value to the first controller to notify the first controller to control the control parameters of the production equipment to be adjusted according to the compensation value.

[0090] Optionally, the first controller includes a first programmable logic controller PLC.

[0091] In summary, in an embodiment of the present invention, for at least one battery pack process of a battery pack production line, the first size parameter of at least one group of first battery products produced by the production equipment corresponding to the battery pack process is obtained; the first size parameter is acquired by a first acquisition system corresponding to the production equipment; the first size parameter of the at least one group of first battery products is input into a preset manufacturing process parameter model to calculate the manufacturing process parameter corresponding to the battery pack process; when the manufacturing process parameter meets the first preset condition, the production equipment corresponding to the battery pack process is adjusted. In an embodiment of the present invention, the manufacturing process parameter is obtained based on at least one group of first size parameters produced by at least one battery pack process. Since the manufacturing process parameter is used to reflect the manufacturing capacity of the production line to manufacture battery packs, the stability and process capacity of the battery production line are monitored in real time through the manufacturing process parameters of the production line to control data changes. Moreover, based on the first size parameter output by each battery pack process, the battery pack process corresponding to the first size parameter is closed-loop controlled, so that the battery pack production line can be adjusted more accurately to ensure the optimal state of the battery pack production line, so that the battery packs subsequently produced based on the batch of incoming materials meet the size quality requirements.

[0092] like Figure 3 In another embodiment of the present invention, before step 101, the method further includes:

[0093] Step 201, obtaining at least one set of second size parameters of a second battery product from the production management system; the second battery product is a product output by the battery pack production line, and the second size parameters are collected by a second collection system corresponding to the end of the battery pack production line and stored in the production management system.

[0094] The second acquisition system is an automatic size detection system. The automatic size detection system collects battery pack data of the intermediate battery product at the end of the battery pack production line. Therefore, the second battery product is the target battery product output after the battery pack production line completes all processing procedures.

[0095] Step 101 includes:

[0096] Step 1011: according to the identification code corresponding to the second battery product, obtain the first size parameter of the first battery product corresponding to the identification code; the identification code corresponding to the second battery product is the same as the identification code corresponding to the first battery product.

[0097] Since the battery pack production line produces the second battery product through at least one battery pack process, and each battery pack process outputs the first battery product. Therefore, the second size parameter of the second battery product corresponds to at least one first size parameter of the first battery product. The first size parameter of the first battery product output by the battery pack process for producing the second size parameter in the battery pack production line can be determined based on the second size parameter of the second battery product. Specifically, the correspondence between the second size parameter and the battery pack process for producing the second size parameter can be configured in the production file. For example, the battery pack process corresponding to the second size parameter of the second battery pack can be configured in the production file as battery pack process 1 and / or battery pack process 2, thereby determining the battery pack process for producing the second size parameter based on the production file and the second size parameter.

[0098] After determining the battery pack process for making the second size parameter of the second battery product, the equipment management system obtains at least one group of identification codes corresponding to the second battery product from the battery pack production line control system, and determines the first size parameter of the first battery product corresponding to the group of identification codes by the production equipment corresponding to the battery pack process for making the second size parameter according to the identification code corresponding to the at least one group of second battery products. Among them, the identification code can be set on the incoming material, and the identification code will not be destroyed during the process of producing the battery pack on the battery pack production line. When different acquisition systems collect data during the process of producing the battery pack on the battery pack production line, the identification code and the size parameters of the battery pack can be collected at the same time, and a corresponding relationship between the identification code and the data collected by the acquisition system can be established. The acquisition system can store the identification code and the corresponding relationship between the identification code and the size parameters collected by the acquisition system in the battery pack production line control system, so that the subsequent equipment management system can determine the identification code according to the first size parameter or the second size parameter, or the subsequent equipment management system can determine the first size parameter or the second size parameter according to the identification code. Specifically, the acquisition system can store the identification code and the corresponding relationship between the identification code and the data collected by the acquisition system in the battery pack production line control system, which can be stored in the production management system or the equipment management system.

[0099] In the example of the present invention, the second dimension parameter is the distance between two points in the second battery product, for example, the length, width, and height of the second battery product, and the distance between different electrodes on the second battery product, and the width of the electrode of the second battery product, and the height of the electrode of the second battery product, and the depth of the groove on the second battery product, and the height of the protrusion on the second battery product, and the thickness of the insulating material, and the installation position of the connector of the first battery product. In the example of the present invention, the specific situation of the second dimension parameter is not limited.

[0100] In the example of the present invention, after the battery pack production line produces the target battery product, it is considered that the second dimensional parameter will be determined through the first article inspection (FAI). The first article inspection refers to the inspection of the first product, which aims to verify whether the production process meets the design requirements and ensure the quality of the first batch of products produced.

[0101] Therefore, in the example of the present invention, in addition to the equipment management system acquiring the first dimension parameter collected by the first collection system sent by the production management system, the equipment management system can also query the first dimension parameter collected by the first collection system according to the second dimension parameter collected by the second collection system. The second dimension parameter determined by the first article inspection can be stored in the production management system and sent by the production management system to the equipment management system.

[0102] In yet another embodiment of the present invention, before step 101, the method further includes:

[0103] Step 202: Determine an offset parameter between the first acquisition system and a second acquisition system corresponding to the production equipment according to the first size parameter and the second size parameter.

[0104] Since the first size parameter is acquired through the first acquisition system, and the second size parameter is acquired through the second acquisition system, the first size parameter and the second size parameter are acquired through different acquisition systems, and the values ​​of different acquisition systems may be different, resulting in a deviation between the first size parameter and the second size parameter. For example, the focal length of the first acquisition system is different from the focal length of the second acquisition system, resulting in a deviation between the first size parameter and the second size parameter. Of course, there are other values ​​of acquisition systems, which will also cause different acquisition results when different acquisition systems acquire the same object, and the examples of the present invention are not limited to this.

[0105] Step 203: When the offset parameter does not meet the second preset condition, the first acquisition system is compensated.

[0106] In order to reduce or avoid the deviation between the first size parameter and the second size parameter and ensure that the two points on the first battery product corresponding to the first size parameter are the same as the two points on the second battery product corresponding to the second size parameter, it can be determined whether the offset parameter meets the second preset condition. The second preset condition can be input by the user in the system interface.

[0107] The second preset condition is the first value; when the offset parameter is greater than the first value, the offset parameter does not meet the second preset condition; when the offset parameter is less than the first value, the offset parameter meets the second preset condition; when the offset parameter does not meet the second preset condition, the first acquisition system and / or the second acquisition system can be compensated. Since the second acquisition system corresponds to the end of the battery pack production line, the second acquisition system can collect dimensions produced by different battery pack processes. If the second acquisition system is compensated, it is necessary to modify the first acquisition system corresponding to multiple corresponding production equipment. Therefore, preferably, the first acquisition system is compensated.

[0108] Optionally, compensating the first acquisition system includes:

[0109] Step 2031: subtract the average value of the first size parameter corresponding to the first battery product from the average value of the second size parameter of the second battery product to obtain an offset compensation value.

[0110] Step 2032: Perform offset compensation on the first acquisition system according to the offset compensation value.

[0111] When it is determined that the first acquisition needs to be adjusted, the average value of the first size parameter corresponding to the first battery product is subtracted from the average value of the second size parameter of the second battery product to obtain an offset compensation value, and the first acquisition system is offset compensated based on the offset compensation value. Specifically, after receiving the offset compensation value, the first acquisition system subtracts the offset compensation value from the currently used template value to obtain a new template value. After obtaining the new template value, the first size parameter is re-acquired, and then step 202 is executed.

[0112] The offset compensation value is obtained by the following formula:

[0113]

[0114] Where n is the number of battery products in at least one group of first battery products, APMT i is the second size parameter corresponding to the i-th second battery product in at least one group of second battery products, inline PCD i is a first size parameter corresponding to the i-th first battery product in at least one group of first battery products, and the number of battery products in at least one group of first battery products is the same as the number of battery products in at least one group of second battery products.

[0115] Optionally, before step 2031, the method further includes:

[0116] Step 301, determine that the process capability index of the first dimensional parameter is greater than the fourth preset threshold and the second dimensional parameter is greater than the fourth preset threshold, and execute the step of subtracting the average value of the first dimensional parameter corresponding to the first battery product from the average value of the second dimensional parameter of the second battery product to obtain the offset compensation value.

[0117] When the process capability index of the first dimensional parameter is greater than the fourth preset threshold and the process capability index of the second dimensional parameter is greater than the fourth preset threshold, it means that both the first dimensional parameter and the second dimensional parameter have good process capability indexes, and therefore, the offset compensation value can be obtained.

[0118] If at least one of the process capability index of the first dimensional parameter and the process capability index of the second dimensional parameter is less than or equal to the fourth preset threshold, it means that the process capability index is poor, and an alarm signal is sent to the second controller. The second controller controls the battery pack production line to stop and turns on the three-color light to alarm, prompting manual offline judgment and analysis again.

[0119] Optionally, step 202 includes:

[0120] Step 2021: subtract the second size parameter of the second battery product from the first size parameter corresponding to the first battery product to obtain a plurality of parameter differences.

[0121] Since the first size parameter is the size parameter of at least one group of first battery products, and the second size parameter is the size parameter of at least one group of second battery products, subtracting the second size parameter of the second battery product from the first size parameter corresponding to the first battery product will obtain multiple parameter differences.

[0122] In the equipment management system, the first size parameters of at least one group of first battery products can be expressed in the form of a matrix. For example, the first battery product 1, the first battery product 2, and the first battery product 3 constitute a group of first battery products. The first size parameter of the first battery product 1 is 4, the first size parameter of the first battery product 2 is 7, and the first size parameter of the first battery product 3 is 10. Then, the first size parameters of a group of first battery products are represented by matrix 1 (4, 7, 10).

[0123] Similarly, the second battery product 1, the second battery product 2, and the second battery product 3 constitute a group of second battery products, the second size parameter of the second battery product 1 is 1, the second size parameter of the second battery product 2 is 2, and the second size parameter of the second battery product 3 is 3, and the second size parameters of a group of second battery products are represented by matrix 2 (1, 2, 3). Among them, the identification code of the first battery product 1 is the same as the identification code of the second battery product 1, the identification code of the first battery product 2 is the same as the identification code of the second battery product 2, and the identification code of the first battery product 3 is the same as the identification code of the second battery product 3.

[0124] In the present invention, when subtracting, the second size parameter of the battery pack with the same identification code is subtracted from the first size parameter. For example, matrix 1 is subtracted from matrix 2 to obtain matrix 3 (3, 5, 7), and each element in matrix 3 represents a parameter difference.

[0125] Step 2022: Divide the sum of the multiple parameter differences by the tolerance parameter corresponding to the battery pack process and the number of first battery products to obtain the offset parameter.

[0126] In order to accurately determine the deviation between the first dimensional parameter and the second dimensional parameter, the sum of multiple parameter differences can be divided by the tolerance parameter corresponding to the battery pack process and the number of first battery products to obtain the offset parameter, and the deviation between the first dimensional parameter and the second dimensional parameter can be determined based on the offset parameter.

[0127] In the example of the present invention, the production file includes a tolerance parameter, and the specific value of the tolerance parameter can be configured by the user in the production file as needed. In the example of the present invention, the value range of the tolerance parameter can be 0.1-0.5. The offset parameter calculated for the above matrix 3 = 15 ÷ 0.5 ÷ 3 = 10.

[0128] Specifically, the offset parameter is obtained by the following formula:

[0129]

[0130] Where n is the number of battery products in at least one group of first battery products, b is the tolerance parameter, APMT i is the second size parameter corresponding to the i-th second battery product of at least one group of second battery products, inline PCD i is the first size parameter corresponding to the i-th first battery product in at least one group of first battery products. The number of battery products in at least one group of first battery products is the same as the number of battery products in at least one group of second battery products.

[0131] In another example of the present invention, the compensation range is determined according to USL, LSL, and the second preset condition in the production file. When the difference between USL and LSL multiplied by the offset parameter is greater than the control compensation value, the control compensation value is not within the compensation range. When the difference between USL and LSL multiplied by the offset parameter is less than the control compensation value, the control compensation value is within the compensation range. By determining the specific value of the compensation range, it can be more accurately determined whether the production equipment corresponding to the battery pack process needs to be adjusted based on the control compensation value.

[0132] In another example of the present invention, when the process capability index is less than the second preset threshold, an alarm signal is sent to the second controller, the second controller controls the battery pack production line to stop, and turns on the three-color light alarm, prompting manual offline judgment and analysis again.

[0133] In another example of the present invention, when the process capability index is less than the third preset threshold, an alarm signal is sent to the second controller, the second controller controls the battery pack production line to stop, and turns on the three-color light to alarm, prompting manual offline judgment and analysis again.

[0134] In another example of the present invention, when the offset parameter meets the second preset condition, the method includes:

[0135] When the second size parameter is greater than the upper limit of the specification of the object in the production file, or the second size parameter is less than the lower limit of the specification of the object in the production file, the influencing factors are analyzed. The influencing factors include: incoming material size, production equipment transmission process positioning, and the most influential influencing factors are screened out from multiple influencing factors, so as to facilitate manual offline re-judgment and analysis of the most influential influencing factors.

[0136] When the second size parameter is greater than the lower specification limit of the object in the production file and less than the upper specification limit of the object in the production file, step 102 is performed.

[0137] In the example of the present invention, by judging the second dimensional parameter, it is determined whether the battery product finally produced meets the lower specification limit and the upper specification limit, so as to determine whether it is necessary to execute the step of determining the manufacturing process parameters. When the second dimensional parameter is greater than the lower specification limit of the object in the production document and less than the upper specification limit of the object in the production document, it means that the second dimensional parameter is qualified and the production equipment can be adjusted.

[0138] In another embodiment of the present invention, the production equipment is not adjusted, including:

[0139] Generate and save logs;

[0140] The first acquisition device is notified to acquire at least one set of first size data again, and the second acquisition device is notified to acquire at least one set of second size data again.

[0141] In the example of the present invention, when the production equipment is not adjusted, a log is recorded to facilitate subsequent query of activity information of the equipment management system, and the log includes all activity information of the equipment management system.

[0142] In another embodiment of the present invention, the control compensation value may be determined according to the second size parameter. Specifically, the production equipment corresponding to the battery pack process is adjusted, including:

[0143] According to the second size parameter, obtaining a standard value corresponding to the first size parameter;

[0144] Subtract the standard value from the average value of the first size parameter corresponding to the second battery product to obtain a control compensation value;

[0145] According to the control compensation value, the production equipment corresponding to the battery pack process is adjusted. The method for determining the standard value can be referred to above and will not be repeated here.

[0146] According to the second size parameter, the standard value corresponding to the first size parameter is obtained; the average value of the first size parameter corresponding to the second battery product is subtracted from the standard value to obtain the control compensation value, which can be obtained by the following formula:

[0147]

[0148] Among them, APMTi is the second size parameter corresponding to the i-th second battery product in at least one group of second battery products, n is the number of battery products in at least one group of second battery products, and a is the standard value.

[0149] The following is based on Figure 4 Describe the specific examples of this application.

[0150] S1, the battery pack production line produces at least one group of second battery products; the second battery products are the products output by the battery pack production line.

[0151] S2. The device management system obtains at least one set of second size parameters of a second battery product.

[0152] When the battery pack production line produces at least one group of second battery products, the second acquisition system will collect the second size parameters of at least one group of second battery products and send them to the production management equipment, which will then send them to the equipment management system.

[0153] S3, the device management system obtains the first size parameter of the first battery product according to the identification code corresponding to the second battery product.

[0154] When the equipment management system obtains the second size parameters of the second battery product, it can obtain the battery pack process of the second size parameters and the identification code of the second battery product according to the production document, and obtain the first size parameters of the first battery product according to the corresponding identification code of the second battery product.

[0155] S4: Whether the offset parameter between the first size parameter and the second size parameter satisfies a second preset condition.

[0156] S5, when the offset parameter between the first dimension parameter and the second dimension parameter meets the second preset condition, determining whether the second dimension parameter meets the specification. Specifically, determining whether the second dimension parameter is less than the lower specification limit or greater than the upper specification limit. When the second dimension parameter is greater than the lower specification limit and greater than the upper specification limit, the second dimension parameter meets the specification.

[0157] S6, the equipment management system determines the process capability index and the operation capability index corresponding to the first dimension parameter. The specific process of determining the process capability index and the operation capability index can be referred to above and will not be described again.

[0158] S7, judging that the process capability index is greater than a first preset threshold;

[0159] S8, when the process capability index is less than the first preset threshold, determine that the process capability index is greater than the second preset threshold, wherein the first preset threshold is greater than the second preset threshold.

[0160] S9, when the process capability index is greater than the second preset threshold, determine that the process capability index is greater than the third preset threshold.

[0161] S10, the equipment management system calculates the control compensation value. The specific calculation process of the control compensation value is as mentioned above and will not be described in detail here.

[0162] S11, the equipment management system determines whether the control compensation value is within the compensation range;

[0163] S12, the control compensation value is within the compensation range, and the equipment management system feeds back the control compensation value to the first controller;

[0164] S13, the first controller compensates the production equipment according to the control compensation value;

[0165] S14, end.

[0166] The method further comprises:

[0167] When the process capability index is greater than the first preset threshold, S15 is executed;

[0168] S15: When the process capability index is greater than the first preset threshold, no compensation is performed, the equipment management system generates and saves a log, and enters step S1.

[0169] The method further comprises:

[0170] When the process capability index is less than the second preset threshold, perform the following steps:

[0171] S16, the equipment management system sends an alarm signal to the second controller;

[0172] S17, the second controller controls the battery pack production line to stop and makes the three-color light alarm;

[0173] S18, manual offline re-judgment and analysis;

[0174] S14, end.

[0175] The method further comprises:

[0176] When the process capability index is less than the third preset threshold, the following steps are performed:

[0177] S16, the equipment management system sends an alarm signal to the second controller

[0178] The method further comprises: performing the following steps when the second size parameter does not meet the specification:

[0179] S19, when the second size parameter does not meet the specification, analyze the influencing factors;

[0180] S20, screening impact factors;

[0181] S18, manual offline re-evaluation and analysis.

[0182] The method further comprises:

[0183] When the offset parameter between the first size parameter and the second size parameter does not satisfy the second preset condition, the following steps are performed:

[0184] S21, determining that both the first size parameter and the second size parameter are greater than a fourth preset threshold;

[0185] S22, when the first size parameter and the second size parameter are both greater than a fourth preset threshold, the device management system calculates an offset compensation value;

[0186] S23, the device management system sends the offset compensation value to the first acquisition system, receives a feedback signal from the first acquisition system based on the offset compensation, and enters S2.

[0187] The method further comprises:

[0188] When at least one of the first size parameter and the second size parameter is less than a fourth preset threshold, perform the following steps:

[0189] S24, the equipment management system sends an alarm signal to the second controller;

[0190] S14, end.

[0191] Exemplary Devices

[0192] Based on the same concept as the method embodiment of the present invention, the embodiment of the present invention further provides a battery pack production line control device 70, including:

[0193] A first size acquisition module 701 is used to acquire, for at least one battery pack process of a battery pack production line, first size parameters of at least one group of first battery products produced by a production device corresponding to the battery pack process; the first size parameters are acquired by a first acquisition system corresponding to the production device;

[0194] A first parameter determination module 702, configured to input the first size parameter of the at least one group of first battery products into a preset manufacturing process parameter model, and calculate the manufacturing process parameters corresponding to the battery pack manufacturing process;

[0195] The adjustment module 703 is used to adjust the production equipment corresponding to the battery pack process when the manufacturing process parameters meet the first preset conditions.

[0196] The device further comprises:

[0197] A second size acquisition module, used to acquire at least one set of second size parameters of a second battery product from the production management system; the second battery product is a product output by the battery pack production line, and the second size parameters are acquired by a second acquisition system corresponding to the end of the battery pack production line and stored in the production management system;

[0198] The first acquisition module is used to acquire the first size parameter of the first battery product corresponding to the identification code according to the identification code corresponding to the second battery product; the identification code corresponding to the second battery product is the same as the identification code corresponding to the first battery product.

[0199] The device further comprises:

[0200] A first determining module, configured to determine an offset parameter between the first acquisition system and a second acquisition system corresponding to the production equipment according to the first size parameter and the second size parameter;

[0201] The first compensation module is used to compensate the first acquisition system when the offset parameter does not meet the second preset condition.

[0202] The first determining module includes:

[0203] A first determining submodule subtracts a second size parameter of the second battery product from a first size parameter corresponding to the first battery product to obtain a plurality of parameter differences;

[0204] The second determination submodule divides the sum of the multiple parameter differences by the tolerance parameter corresponding to the battery pack process and the number of first battery products to obtain the offset parameter.

[0205] The first compensation module comprises:

[0206] A first compensation submodule, configured to obtain an offset compensation value by subtracting an average value of a first size parameter corresponding to the first battery product from an average value of a second size parameter of the second battery product;

[0207] The second compensation submodule is used to perform offset compensation on the first acquisition system according to the offset compensation value.

[0208] The adjustment module comprises:

[0209] A first adjustment submodule, configured to obtain a standard value corresponding to the first size parameter according to the first size parameter;

[0210] A second adjustment submodule, configured to obtain a control compensation value by subtracting the standard value from the average value of the first size parameter corresponding to the first battery product;

[0211] The third adjustment submodule is used to adjust the production equipment corresponding to the battery pack process according to the control compensation value.

[0212] The device further comprises:

[0213] A second compensation module, used to determine whether the control compensation value is within a preset compensation range;

[0214] A third compensation module, configured to adjust the production equipment corresponding to the battery pack process according to the control compensation value when the control compensation value is within the compensation range;

[0215] The fourth compensation module is used for not compensating the production equipment when the control compensation value is not within the compensation range.

[0216] The third adjustment submodule is specifically used to send the control compensation value to the first controller corresponding to the battery pack process through the equipment management system; the first controller is used to control the production equipment to make adjustments according to the compensation value.

[0217] The manufacturing process parameters include: process capability index and operation capability index;

[0218] The adjustment module is specifically used to adjust the production equipment corresponding to the battery pack process when the process capability index is less than a first preset threshold value, the process capability index is greater than a second preset threshold value, and the process capability index is greater than a third preset threshold value.

[0219] The adjustment module also includes

[0220] A fourth adjustment module, configured to not adjust the production equipment when the process capability index is greater than or equal to a first preset threshold;

[0221] The fifth adjustment module is used to determine whether the process capability index is greater than a second preset threshold when the process capability index is less than the first preset threshold.

[0222] The present invention also provides an electronic device, see Figure 6 , including: a processor 801, a memory 802, and a computer program 8021 stored in the memory and executable on the processor, wherein when the processor executes the program, the battery pack production process production line control method of the aforementioned embodiment is implemented.

[0223] The present invention also provides a readable storage medium. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device can execute the battery pack production process production line control method of the aforementioned embodiment.

[0224] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0225] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing such systems. In addition, the present invention is not directed to any specific programming language either. It should be understood that various programming languages ​​can be utilized to realize the content of the present invention described herein, and the description of the above specific languages ​​is for disclosing the best mode of the present invention.

[0226] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0227] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following intention: that the claimed invention requires more features than the features explicitly recited in each claim. More specifically, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present invention.

[0228] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this manner may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0229] The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the sorting device according to the present invention. The present invention may also be implemented as a device or apparatus program for executing part or all of the methods described herein. Such a program for implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0230] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

[0231] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0232] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0233] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A battery pack production line control method, characterized in that: The method comprises: For at least one battery pack process of a battery pack production line, obtaining first size parameters of at least one group of first battery products produced by production equipment corresponding to the battery pack process; the first size parameters are acquired by a first acquisition system corresponding to the production equipment; Inputting the first size parameters of the at least one group of first battery products into a preset manufacturing process parameter model to calculate the manufacturing process parameters corresponding to the battery pack manufacturing process; When the manufacturing process parameters meet the first preset conditions, the control parameters of the production equipment corresponding to the battery pack process are adjusted; the control parameters include: at least one of the operating position, operating time, and operating angle.

2. The method according to claim 1, characterized in that Before obtaining the first size parameters of at least one group of first battery products produced by the production equipment corresponding to the battery pack process, the method further includes: Acquire at least one set of second size parameters of a second battery product from the production management system; the second battery product is a product output by the battery pack production line, and the second size parameters are acquired by a second acquisition system corresponding to the end of the battery pack production line and stored in the production management system; The obtaining of first size parameters of at least one group of first battery products produced by production equipment corresponding to the battery pack process includes: According to the identification code corresponding to the second battery product, the first size parameter of the first battery product corresponding to the identification code is obtained; the identification code corresponding to the second battery product is the same as the identification code corresponding to the first battery product.

3. The method according to claim 2, characterized in that Before inputting the first size parameters of the at least one group of first battery products into a preset manufacturing process parameter model to calculate the manufacturing process parameters corresponding to the battery pack manufacturing process, the method further includes: Determining an offset parameter between the first acquisition system and a second acquisition system corresponding to the production equipment according to the first size parameter and the second size parameter; When the offset parameter does not meet the second preset condition, the first acquisition system is compensated.

4. The method according to claim 3, characterized in that The step of determining an offset parameter between the first acquisition system and a second acquisition system corresponding to the production equipment according to the first size parameter and the second size parameter includes: subtracting a second size parameter of the second battery product from a first size parameter corresponding to the first battery product to obtain a plurality of parameter differences; The sum of the multiple parameter differences is divided by the tolerance parameter corresponding to the battery pack process and the number of first battery products to obtain the offset parameter.

5. The method according to claim 3, characterized in that: Compensating the first acquisition system includes: Subtract the average value of the first size parameter corresponding to the first battery product from the average value of the second size parameter of the second battery product to obtain an offset compensation value; The first acquisition system is subjected to offset compensation according to the offset compensation value.

6. The method according to claim 1, characterized in that The adjusting of the control parameters of the production equipment corresponding to the battery pack process includes: According to the first size parameter, obtaining a standard value corresponding to the first size parameter; Subtract the standard value from the average value of the first size parameter corresponding to the first battery product to obtain a control compensation value; According to the control compensation value, the control parameters of the production equipment corresponding to the battery pack process are adjusted.

7. The method according to claim 6, characterized in that After obtaining the control compensation value, the method further includes: Determining whether the control compensation value is within a preset compensation range; When the control compensation value is within the compensation range, entering the step of adjusting the production equipment corresponding to the battery pack process according to the control compensation value; When the control compensation value is not within the compensation range, no compensation is performed on the production equipment.

8. The method according to claim 6, characterized in that The step of adjusting control parameters of production equipment corresponding to the battery pack process according to the control compensation value includes: The equipment management system sends the control compensation value to the first controller corresponding to the battery pack process; the first controller is used to control the control parameters of the production equipment to adjust according to the control compensation value.

9. The method according to claim 1, characterized in that: The manufacturing process parameters include: process capability index and operation capability index; When the manufacturing process parameters meet the first preset condition, adjusting the production equipment corresponding to the battery pack process includes: When the process capability index is less than the first preset threshold value, the process capability index is greater than the second preset threshold value, and the process capability index is greater than the third preset threshold value, the production equipment corresponding to the battery pack process is adjusted.

10. The method according to claim 9, characterized in that The method further comprises: When the process capability index is greater than or equal to a first preset threshold, the production equipment is not adjusted; When the process capability index is less than the first preset threshold, it is determined whether the process capability index is greater than a second preset threshold.

11. A battery pack production line control device, characterized in that: A first size acquisition module, for acquiring, for at least one battery pack process of a battery pack production line, first size parameters of at least one group of first battery products produced by production equipment corresponding to the battery pack process; The first size parameter is acquired by collecting through a first collection system corresponding to the production equipment; A first parameter determination module, used to input the first size parameter of the at least one group of first battery products into a preset manufacturing process parameter model to calculate the manufacturing process parameters corresponding to the battery pack manufacturing process; The adjustment module is used to adjust the production equipment corresponding to the battery pack process when the manufacturing process parameters meet the first preset conditions.

12. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; Memory, used to store computer programs; A processor, for implementing any of the methods described in claims 1-10 when executing a program stored in a memory.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 10 is implemented.

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