Electric water pump full-process generative development system and method

Abstract

The invention discloses a full-flow generative development system and method for an electric water pump, belongs to the technical field of intelligent manufacturing of products, and comprises a development system and a development method. The system comprises a product specification module, a parameter grading module, a parameter calculation module, a component design decision module, a batch simulation module, a database, a specification layer operation port, a digital development port and an entity development port. The method comprises the steps of receiving specification information, creating key parameters, creating basic parameters, screening necessary parts and basic parts, establishing an electric water pump model, performing virtual testing, outputting the electric water pump model and the like. Key parameters and key parts can be extracted according to specifications required by development of the electric water pump, on this basis, existing product data are fully utilized to establish models in batches, virtual testing is carried out, entity manufacturing and using are facilitated, development efficiency can be improved, quick response of product development is met, and the development cost is reduced. And meanwhile, the development difficulty can be considered and reduced, and dependence on designers is reduced.

Description

Technical Field

[0001] The present invention relates to the field of product intelligent manufacturing technology, and in particular to a full-process generative development system and method for an electric water pump. Background Art

[0002] In automotive systems, the device that provides thermal balance for the engine and water supply to the vehicle body is called a water pump. Unlike traditional fuel-powered vehicles that use mechanical water pumps, new energy vehicles often use electric water pumps. Currently, the development of electric water pumps is primarily provided by decentralized automotive suppliers. Most companies still rely on traditional product development methods such as prototyping, component procurement, and assembly, resulting in low development efficiency. Due to the wide range of demand for serialized electric water pumps, short order cycles, and high customization requirements, existing development methods are unable to meet the requirements of rapid response and differentiated development. Summary of the Invention

[0003] In response to the above-mentioned defects, the present invention provides a full-process generative development system and method for an electric water pump, which can analyze and form design specifications based on the development requirements of the electric water pump, extract key parameters and key parts, and on this basis make full use of existing product data to batch build models and conduct virtual testing to facilitate physical manufacturing and use, thereby improving development efficiency while taking into account and reducing development difficulty.

[0004] In order to achieve the purpose of the present invention, the following technologies are proposed: A full-process generative development system for electric water pumps, including: A product specification module is used to receive specification information, which includes several specification items, each of which includes a specification name and a specification value; A parameter classification module is used to classify the technical parameters of the electric water pump into key parameters and basic parameters. Both key parameters and basic parameters include technical parameter names and parameter values. Parameter calculation module, used to calculate the parameter values of key parameters based on specification values; Component design decision module, used to classify the various parts of the electric water pump; Batch simulation module, used to build electric water pump models and test the models; The database includes a table of specifications and parameters, a parameter summary table, a parameter calculation function table, and a product family database. The table of specifications and parameters stores the corresponding relationship between each specification name and each technical parameter name. The parameter summary table stores all technical parameter names of all electric water pumps. The parameter calculation function table stores multiple calculation functions. The calculation function includes a function formula, a technical parameter name, and a specification name. The product family database stores n existing product information and a necessary parts table, where n is a positive integer. The existing product information includes m necessary parts. Some existing product information also includes a parameter and unique parts correspondence table and T p There are unique parts, 1≤p≤n. The required parts table includes m required parts and a table of correspondence between parameters and required parts, where m is a positive integer. Both required parts and unique parts include part information. The part information includes part name, multiple structural variables, and a table of correspondence between parameters and structures. The structural variables include structure name, structure value, and deformation range. A full-process generative development method for electric water pumps using a full-process generative development system for electric water pumps includes the following steps: S100: The product specification module receives specification information; S200: The parameter classification module obtains specification names from all specification items, searches for all corresponding technical parameter names in the specification and parameter correspondence table, and creates key parameters for each specification name. S300: The parameter classification module obtains the names of all technical parameters except key parameters from the parameter summary table, creates basic parameters for each parameter, and outputs them; S400: The parameter calculation module searches for all calculation functions in the parameter calculation function table, uses all calculation functions containing the specification names in the specification information, substitutes the specification values for calculation, and obtains the parameter values of all key parameters; S500: The component design decision module selects all x necessary parts associated with the key parameters from the parameter and necessary parts correspondence table as first key parts, where x is a positive integer, and regards the other necessary parts as basic parts; S600: The batch simulation module calls the modeling software and establishes n x electric water pump models, each of which includes mx identical basic parts. Each basic part is a corresponding necessary part selected and borrowed from existing product information input from outside the system, and each electric water pump model uses a different combination of first key parts; S700: The batch simulation module calls the test software to test each key parameter of each electric water pump model to determine whether each first key component is borrowed from existing product information and whether some unique components need to be borrowed as second key components; S800: The batch simulation module outputs the finalized electric water pump model for parts production, assembly, testing to form finished products, prototype testing, feedback and calibration of digital models, and updating of development modules.

[0005] Furthermore, S700 includes: S711: The batch simulation module finds c test software, where c is a positive integer, and each test software is used to test at least one key parameter; S712: Set i=1; S713: All electric water pump models are sequentially loaded into the i-th test software for testing. If there are test results that meet the parameter values of all key parameters tested by the test software, a first flag is set for all electric water pump models that meet the requirements. If not, a second flag is set for each key parameter that cannot meet the reference value. S714: Set i=i+1. If i>c, execute S715; otherwise, return to S713. S715: If no second marker appears at this time, execute S716. If the second marker appears, find d key parameters according to the second marker, where d is a positive integer, and then sequentially execute the steps of deforming the first key component, borrowing the second key component, and deforming the second key component. S716: Determine whether the number of electric water pump models with c first marks is 1. If so, the electric water pump model with c first marks is used for output in S800 and ends S700. If not, execute the optimization step to screen out a single electric water pump model for output in S800 and end S700.

[0006] The beneficial effects of this technical solution are: 1. It can quickly respond to differentiated development needs. Depending on the different needs, the extracted key parameters and key parts are also different, which is convenient for developing electric water pumps with different requirements according to needs, can improve development efficiency, and can better assist staff in development and reduce the number of required personnel.

[0007] 2. Through deformation design, some parts of existing products can be fully utilized to develop new electronic water pumps, reducing the development difficulty. In addition, virtual testing can be carried out based on multiple models established during the development process, and the borrowing of parts can be adjusted according to the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The overall architecture diagram of the full-process generative development system of the electric water pump according to the embodiment of the present application is shown.

[0009] Figure 2The specification information, key parameters, and basic parameter structure diagram of the embodiment of this application are shown.

[0010] Figure 3 The structure diagram of the parameter calculation function table of an embodiment of the present application is shown.

[0011] Figure 4 The product family database structure diagram of the embodiment of the present application is shown.

[0012] Figure 5 The part information structure diagram of an embodiment of the present application is shown.

[0013] Figure 6 A flowchart showing the main steps of the full-process generative development method for an electric water pump according to an embodiment of the present application is shown.

[0014] Figure 7 A structural diagram showing the contents included in the electric water pump model of an embodiment of the present application is shown.

[0015] Figure 8 A flow chart of the feedback process of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0016] The present application will be further described below with reference to the accompanying drawings and examples.

[0017] like Figures 1 to 5 The full-process generative development system of an electric water pump shown in FIG. Figure 1 The product specification module, parameter grading module, parameter calculation module, component design decision module, batch simulation module, database, specification layer operation port, digital development port, physical development port, modeling software calling interface, test software calling interface, model update interface, and model update interface are shown.

[0018] The product specification module is used to receive specification information, such as Figure 2 As shown, the specification information includes several specification items, and the specification items include specification names and specification values. It should be noted that the value a marked in the figure is not a fixed value, because the number of specification items in the specification information received each time may be different.

[0019] The parameter classification module is used to classify the technical parameters of the electric water pump into key parameters and basic parameters, such as Figure 2 As shown, key parameters and basic parameters include technical parameter names and parameter values.

[0020] The parameter calculation module is used to calculate the parameter values of key parameters through specification values.

[0021] The component design decision module is used to classify the various parts of the electric water pump. Specifically, existing design resources for the electric water pump are integrated and classified by module and component. Their associated attributes are also clarified. This serves as a basis for design decision-making during new product development, such as which parts should be retained, modified, or redesigned.

[0022] The batch simulation module is used to establish an electric water pump model and test the model. Specifically, it simulates the performance of the components and products of the electric water pump and optimizes the parameters.

[0023] More specifically, the batch simulation module includes an initial model module and a batch simulation verification module.

[0024] After demand analysis, specification determination, parameter calculation and component design decision-making, the preliminary model module uses parametric modeling to generate preliminary component models and product models.

[0025] Batch simulation verification module to perform performance inspection on components and functional testing on products.

[0026] The database includes a table of specifications and parameters, a parameter summary table, a parameter calculation function table, a parameter value temporary storage library, a product family database, a user information library, and a table of parameters and test software. The table of specifications and parameters stores the corresponding relationship between each specification name and each technical parameter name. The parameter summary table stores all technical parameter names of all electric water pumps, such as Figure 3 As shown, the parameter calculation function table stores multiple calculation functions, which include function formula, technical parameter name, and specification name. The parameter value temporary storage library is used to temporarily store the parameter values of each key parameter calculated by the parameter calculation module, such as Figure 4 As shown, the product family database stores n existing product information and a required parts table. The existing product information includes m required parts. Some existing product information also includes a parameter and unique parts correspondence table and T p There are unique parts, 1≤p≤n. The parameter and unique parts correspondence table stores the correspondence between the names of each technical parameter and the part names of each unique part. The required parts table includes m required parts and the parameter and required parts correspondence table. The parameter and required parts correspondence table stores the correspondence between the names of each technical parameter and the part names of each required part. Both required parts and unique parts include part information, such as Figure 5As shown, part information includes part name, multiple structural variables, and a parameter-structure correspondence table. Structural variables include structural name, structural value, and deformation range. The parameter-structure correspondence table stores the correspondence between the names of various technical parameters and the structural names of various structural variables. It should be noted that the k value marked in the figure is not a fixed value, because the number of structural variables for each part may be different. The user information database stores the login information of users who are allowed to operate the system, and there are three types of users, including specification-level operators, digital developers, and physical developers. The parameter-test software correspondence table stores the correspondence between the names of various technical parameters and the names of various test software. The database provides rich original design data, which is conducive to the flow of data on different simulation platforms and has the advantages of cross-platform operation and data sharing.

[0027] The specification layer operation port is used by specification layer operators to connect and interact with the system.

[0028] The digital development port is used for digital developers to connect and interact with the system. Preferably, the digital developers also include personnel who manage the electric water pump full-process generative development system and can update the content in the database to continuously improve the system and further enhance its development capabilities.

[0029] The entity development port is used by entity developers to connect and interact with the system.

[0030] The modeling software calling interface is used to connect batch simulation modules and call the modeling software.

[0031] The test software calling interface is used to connect batch simulation modules and call test software.

[0032] The model update interface is used to add a feedback process to provide feedback and corrections to the digital model, structural model, and performance model, and to update the development process.

[0033] The electric water pump full process generative development method using the above electric water pump full process generative development system is as follows: Figure 6 As shown, follow these steps: S100: The product specification module receives specification information input from the specification layer operation port; S200: The parameter classification module obtains specification names from all specification items, searches for all corresponding technical parameter names in the specification and parameter correspondence table, and creates key parameters for each specification name. S300: The parameter classification module obtains the names of all technical parameters except key parameters from the parameter summary table, creates basic parameters for each, and outputs them from the digital development port; S400: The parameter calculation module searches for all calculation functions in the parameter calculation function table, uses all calculation functions containing the specification names in the specification information, substitutes the specification values for calculation, and obtains the parameter values of all key parameters; Specifically, after S400 is completed, S450 is first executed: if multiple parameter values are calculated for key parameters with the same technical parameter name in S400, then after S400 is completed, only the parameter value with the smallest range is retained for each individual key parameter, or judgment is made according to the standard agreed in the "Product Specifications"; S500: The component design decision module selects all x necessary parts associated with the key parameters from the parameter and necessary parts correspondence table as the first key parts, and the other necessary parts as basic parts; S600: The batch simulation module calls the modeling software through the modeling software calling interface to establish n x electric water pump models, each of which includes mx identical basic parts, each of which uses a corresponding necessary part selected and borrowed from existing product information input through a digital development port, and each electric water pump model uses a different combination of first key parts; S700: The batch simulation module searches for all test software associated with each key parameter through the parameter and test software correspondence table, and calls the test software through the test software calling interface respectively, and tests each key parameter of each electric water pump model respectively to determine whether each first key component is borrowed from the existing product information, and whether it is necessary to borrow some unique components as the second key component. The electric water pump model with the second key component is as follows: Figure 7 As shown, it includes x first key parts, y second key parts, and mx basic parts; More specifically, S700 includes the following detailed steps: S711: The batch simulation module finds c test software, where each test software is used to test at least one key parameter; S712: Set i=1; S713: All electric water pump models are sequentially loaded into the i-th test software for testing. If there are test results that meet the parameter values of all key parameters tested by the test software, a first flag is set for all electric water pump models that meet the requirements. If not, a second flag is set for each key parameter that cannot meet the reference value. S714: Set i=i+1. If i>c, execute S715; otherwise, return to S713. S715: If no second marker appears at this time, execute S716; if the second marker appears, find d key parameters through the second marker, and then execute S717; S716: Determine whether the number of electric water pump models with c first tags is 1. If so, use the electric water pump models with c first tags for output in S800 and end S700. If not, perform a selection step to select a single electric water pump model for output in S800 and end S700. S717: Set j=1; S718: Find all first key parts corresponding to the jth key parameter through the parameter-to-essential parts correspondence table, and find all structural variables corresponding to the jth key parameter in these first key parts through the parameter-to-structure correspondence table as first key variables; S719: Set j = j + 1. If j > d, execute S720. Otherwise, return to S718. S720: The batch simulation module receives the deformation granularity e set from the digital development port. Specifically, the value of e is expressed in percentage. The larger the e value, the larger the granularity, the faster the system runs, but the lower the accuracy. The smaller the e value, the smaller the granularity, the slower the system runs, but the higher the accuracy. S721: The batch simulation module deforms each first key variable of each first key component found by the d key parameters described in S715 within a deformation range, and generates z first deformation models according to the deformation granularity e. Specifically, these first deformation models cover all deformation conditions of all first key variables of all first key components described in this step; S722: Initialize i=1; S723: All first deformation models are sequentially loaded into the i-th test software for testing. If there are test results that meet the parameter values of all key parameters tested by the test software, a third flag is set for all first deformation models that meet the requirements. If not, a fourth flag is set for each key parameter that cannot meet the reference value. S724: Set i=i+1. If i>c, execute S725; otherwise, return to S723. S725: If no fourth marker appears at this time, execute S726; if the fourth marker appears, find f key parameters according to the fourth marker, and then execute S727; S726: Determine whether the number of first deformation models with c third tags is 1. If so, use the first deformation model with c third tags as the electric water pump model for output in S800, and end S700. If not, perform a selection step to select a single electric water pump model for output in S800, and end S700. S727: Set s=1; S728: Search each existing product information in sequence, and find all unique parts corresponding to the sth key parameter from the parameter-unique parts correspondence table, and use them as the second key parts respectively; S729: Set s=s+1. If s>f, execute S730. Otherwise, return to S728. S730: Based on all the first deformation models, the batch simulation module re-models multiple secondary models to be tested according to all situations of adding at least one second key component; S731: Initialize i=1; S732: All the second-level test models are sequentially loaded into the i-th test software for testing. If there are test results that meet the parameter values of all key parameters tested by the test software, a fifth flag is set for all the second-level test models that meet the requirements. If not, a sixth flag is set for each key parameter that cannot meet the reference value. S733: Set i=i+1. If i>c, execute S734; otherwise, return to S732. S734: If no sixth marker appears at this time, execute S735. If the sixth marker appears, find g key parameters according to the sixth marker, and then execute S736. S735: Determine whether the number of the secondary models to be tested having c fifth marks is 1. If so, use the secondary models to be tested having c fifth marks as the electric water pump model for output in S800, and end S700. If not, perform a selection step to select a single electric water pump model for output in S800, and end S700. S736: Set q=1; S737: Find all structural variables corresponding to the qth key parameter in the second key component selected in S728 through the parameter-structure correspondence table, and use them as the second key variables; S738: Set q = q + 1. If q > g, execute S739. Otherwise, return to S737. S739: The batch simulation module deforms each second key variable of each second key component found by the g key parameters described in S734 within a deformation range, and generates w second deformation models according to the deformation granularity e. Specifically, these second deformation models cover all deformation conditions of all second key variables of all second key components described in this step; S740: Initialize i=1; S741: All second deformation models are sequentially loaded into the i-th test software for testing. If there are test results that meet the parameter values of all key parameters tested by the test software, a seventh flag is set for all second deformation models that meet the requirements. If no second deformation models meet the requirements, an eighth flag is set for each key parameter that cannot meet the reference value. S742: Set i=i+1. If i>c, execute S743; otherwise, return to S741. S743: If no eighth mark appears at this time, execute S744; if the eighth mark appears, find f key parameters through the eighth mark, and then execute S745; S744: Determine whether the number of electric water pump models with c seventh marks is 1. If so, use the second deformed model with c seventh marks as the electric water pump model for output in S800, and end S700. If not, perform a selection step to select a single electric water pump model for output in S800, and end S700. S745: Output all second deformation models from the digital development port, and at the same time output f key parameters for reference by digital developers to develop new parts; S746: After the digital developer develops new parts that can meet the f key parameters described in S745, these new parts are also added as additional second key parts to the single electric water pump model selected by the digital developer. The batch simulation module receives the finalized electric water pump model from the digital development port for output in S800. Specifically, since the electric water pump model is confirmed by the digital developer through external digital testing, it does not need to be returned to this system for digital testing.

[0034] Since there are many specific steps in S700, they are explained here: In steps S711 to S716, it is actually tested to determine whether it is possible to develop a new electric water pump product that meets the demand by borrowing only the necessary parts of existing products. If this is not possible, then: In steps S717 to S726, the deformation of certain necessary parts is actually tested to determine whether the development of a new electric water pump product that meets the requirements can be achieved by deforming only these parts. If this is still not possible, then: In steps S727 to S735, based on the above borrowing and deformation, the test is to determine whether it is possible to develop a new electric water pump product that meets the requirements by simply borrowing some unique parts of existing products without deformation. If this is still not possible, then: In steps S736 to S744, based on the above borrowing and deformation, it is actually tested whether the deformation of the above-mentioned unique parts can be used to develop a new electric water pump product that meets the needs. If it is still not possible, then: In steps S745 to S746, feedback is given outside the system, specifically to the digital developers, indicating that several new parts need to be developed to realize a new electric water pump product that meets the demand.

[0035] Through these specific steps, when developing an electric water pump, we can give priority to borrowing parts from existing products and common parts according to the principle of from easy to difficult, and give priority to not adjusting part parameters. Through multiple levels, we can improve the development efficiency of the electric water pump and improve the feasibility of development.

[0036] The above-mentioned selection steps include: Step 1: Output from the system. Specifically, output various electric water pump models from the digital development port for selection. At this time, digital developers can manually select based on factors such as material usage and cost; Step 2: The batch simulation module receives the selected single electric water pump model from the digital development port.

[0037] S800: The batch simulation module outputs the finalized electric water pump model for parts production, assembly, and testing to form finished products and prototype testing. The model feedback and calibration module uses the model update interface to provide feedback based on prototype or actual measurement results, correct the model, and update the development process.

[0038] The values of n, m, x, c, and d mentioned above are all positive integers.

[0039] Specifically, in the physical development stage, the various parts are produced first, mainly including injection molded parts such as pump housing, motor housing, end cover, stator clamp, inner housing, etc., as well as motor parts such as stator core laminations, windings, rotor magnets, etc., and then the parts are assembled into physical samples to verify the effectiveness of virtual manufacturing.

[0040] Products that have been tested and confirmed as qualified are considered finished products in product management. Once packaged, they are stored in the warehouse. Using our ERP software, we can effectively manage inventory, shipments, and orders, improving productivity in the final stages of product development.

[0041] The following briefly describes the system and method of the present application using a simple example of customer-required specifications. More complex situations can be explained by analogy.

[0042] The specifications of a customer's needs include: (1) The flow rate of the electronic water pump is not less than 45 L / min; (2) The lift of the electronic water pump shall not be less than 12 meters.

[0043] (3) Improve the efficiency of electric water pumps.

[0044] (4) Carry out lightweight design.

[0045] The product specification module analyzes the specifications of customer needs and combines them with the actual situation of the enterprise to further form feasible, specific and clear product development specifications for actual development. (1) The rated power table of the electric water pump motor is: 100W. This means that when optimizing the electromagnetic model parameters of the motor, it is necessary to reasonably determine the electromagnetic parameters, such as the number of motor winding turns, magnetic steel thickness, air gap distance, etc. According to the centrifugal pump shaft power, flow rate and head formula in the parameter calculation function table, a key parameter will be calculated. The technical parameter name of this key parameter is power: Power = 1100 × 9.8 × 45 / 1000 / 60 × 12 = 97.02 W.

[0046] Where 1100 is the density of the coolant water-based ethylene glycol, 9.8 is the acceleration of gravity, 45 and 12 are the specification parameters, since the unit of the centrifugal pump flow is m 3 / s, and needs to be divided by 1000 and 60 according to the unit conversion requirements. Preferably, a safety margin can be added in the S400 through the digital development port to make the rated power 100 W.

[0047] (2) The working efficiency of the electric water pump can reach 30%.

[0048] (3) The weight of the electric water pump is reduced by 5% compared to the existing 60W model. This means that the material for the housing and other components needs to be selected, such as nylon, which has low density and high temperature resistance. Based on the key parameter, namely power, the first key components are selected, including the impeller, motor rotor, and motor stator. Other parts are necessary for manufacturing the electronic water pump but do not affect the key parameters. As basic parts, there are many of these parts and they are not listed here. The basic parts are directly selected by the digital developers.

[0049] Next, the S700 detailed steps involved software modeling and multiple rounds of testing to determine the performance of each component. For example, Siemens NX software was used for modeling, Maxwell was selected for motor simulation and optimization, Motor-CAD software for thermal analysis, and ANSYS for water pump motor vibration analysis.

[0050] Preferably, although the parameters are verified and the parts are adjusted after S700, it is still necessary to check the risks in the manufacturing process. Therefore, CAPP (Computer Aided Process Planning) software can be used to virtually verify the processing technology after S700.

[0051] After virtual verification, the physical manufacturing phase begins. Based on the prototype test results, the simulation results from the digital verification phase are compared, the error amplitude and cause are analyzed, the electromagnetic model, thermal model, vibration model, etc. of the electric water pump are calibrated, and the digital model and generative development process are updated to better implement the next design.

[0052] Example: Prototype test results are used to verify and improve digital verification (digital verification process, see Figure 8 Steps ①-④), evaluate the model accuracy and calibrate the parameters (see Figure 8 Although the methods and software differ, the verification and calibration of electromagnetic, thermal, and vibration models follow the same process: verification, feedback, calibration, and update. According to the company standard for electric water pump simulation verification, a simulation error of less than 5% is considered highly reliable, 5%-10% indicates fine-tuning, and more than 15% indicates verification failure.

[0053] For example, the thermal model of an electric water pump (in Motor-CAD software) initially accounted for electromagnetic heat dissipation through the air gap and convection cooling. However, prototype testing revealed that increased vibration under operating conditions led to increased mechanical losses, reduced efficiency, and airflow disturbances. Based on test feedback, the thermal model was recalibrated to account for friction and windage loss coefficients. The updated model now represents the actual conditions with high accuracy.

[0054] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A full-process generative development system for electric water pumps, characterized by: include: A product specification module is used to receive specification information, which includes several specification items, each of which includes a specification name and a specification value; A parameter classification module is used to classify the technical parameters of the electric water pump into key parameters and basic parameters. Both key parameters and basic parameters include technical parameter names and parameter values. Parameter calculation module, used to calculate the parameter values of key parameters based on specification values; Component design decision module, used to classify the various parts of the electric water pump; Batch simulation module, used to build electric water pump models and test the models; The database includes a table of specifications and parameters, a parameter summary table, a parameter calculation function table, and a product family database. The table of specifications and parameters stores the corresponding relationship between each specification name and each technical parameter name. The parameter summary table stores all technical parameter names of all electric water pumps. The parameter calculation function table stores multiple calculation functions. The calculation function includes a function formula, a technical parameter name, and a specification name. The product family database stores n existing product information and a necessary parts table, where n is a positive integer. The existing product information includes m necessary parts. Some existing product information also includes a parameter and unique parts correspondence table and T p unique parts, 1≤p≤n, the required parts table includes m required parts and a table of correspondence between parameters and required parts, m is a positive integer, both required parts and unique parts include part information, the part information includes part name, multiple structure variables, a table of correspondence between parameters and structures, and the structure variables include structure name, structure value, and deformation range.

2. The electric water pump full-process generative development system according to claim 1 is characterized in that: The database also includes a user information library, which stores the login information of users who are allowed to operate the system. There are three types of users, including specification layer operators, digital developers, and physical developers. The system also includes: Specification layer operation port, used by specification layer operators to connect and interact with the system; A digital development port for digital developers to connect and interact with the system; Entity development port, used by entity developers to connect and interact with the system.

3. The electric water pump full-process generative development system according to claim 1 is characterized in that: Also includes: Modeling software calling interface, used for batch simulation module connection and calling modeling software; Test software calling interface, used for batch simulation module connection and calling test software; The model update interface is used to increase the feedback process, provide feedback and corrections to the digital model, structural model, and performance model, and update the development process.

4. The electric water pump full-process generative development system according to claim 1 is characterized in that: The database also includes a parameter and test software correspondence table, which stores the correspondence between each technical parameter name and each test software name.

5. The electric water pump full-process generative development system according to claim 1 is characterized in that: The parameter and required parts correspondence table stores the correspondence between the names of each technical parameter and the part names of each required part, the parameter and unique parts correspondence table stores the correspondence between the names of each technical parameter and the part names of each unique part, and the parameter and structure correspondence table stores the correspondence between the names of each technical parameter and the structure name of each structure variable.

6. A full-process generative development method for an electric water pump, characterized in that: The electric water pump full-process generative development system according to any one of claims 1 to 5 comprises the following steps: S100: The product specification module receives specification information; S200: The parameter classification module obtains specification names from all specification items, searches for all corresponding technical parameter names in the specification and parameter correspondence table, and creates key parameters for each specification name. S300: The parameter classification module obtains the names of all technical parameters except key parameters from the parameter summary table, creates basic parameters for each parameter, and outputs them; S400: The parameter calculation module searches for all calculation functions in the parameter calculation function table, uses all calculation functions containing the specification names in the specification information, substitutes the specification values for calculation, and obtains the parameter values of all key parameters; S500: The component design decision module selects all x necessary parts associated with the key parameters from the parameter and necessary parts correspondence table as first key parts, where x is a positive integer, and regards the other necessary parts as basic parts; S600: The batch simulation module calls the modeling software and establishes n x electric water pump models, each of which includes mx identical basic parts. Each basic part is a corresponding necessary part selected and borrowed from existing product information input from outside the system, and each electric water pump model uses a different combination of first key parts; S700: The batch simulation module calls the test software to test each key parameter of each electric water pump model to determine whether each first key component is borrowed from existing product information and whether some unique components need to be borrowed as second key components; S800: The batch simulation module outputs the finalized electric water pump model for parts production, assembly, testing to form finished products, prototype testing, feedback and calibration of digital models, and updating of development modules.

7. The full-process generative development method for an electric water pump according to claim 6 is characterized in that: The steps between S400 and S500 are as follows: S450: If multiple parameter values are calculated for the key parameter with the same technical parameter name in S400, then after S400 is completed, only the parameter value with the smallest range is retained for each individual key parameter.

8. The full-process generative development method for an electric water pump according to claim 6 is characterized in that: The S700 includes: S711: The batch simulation module finds c test software, where c is a positive integer, and each test software is used to test at least one key parameter; S712: Set i=1; S713: All electric water pump models are sequentially loaded into the i-th test software for testing. If there are test results that meet the parameter values of all key parameters tested by the test software, a first flag is set for all electric water pump models that meet the requirements. If not, a second flag is set for each key parameter that cannot meet the reference value. S714: Set i=i+1. If i>c, execute S715; otherwise, return to S713. S715: If no second marker appears at this time, execute S716. If the second marker appears, find d key parameters according to the second marker, where d is a positive integer, and then sequentially execute the steps of deforming the first key component, borrowing the second key component, and deforming the second key component. S716: Determine whether the number of electric water pump models with c first marks is 1. If so, the electric water pump model with c first marks is used for output in S800 and ends S700. If not, execute the optimization step to screen out a single electric water pump model for output in S800 and end S700.

9. The full-process generative development method for an electric water pump according to claim 8, characterized in that: The selection steps include: Step 1: Output various electric water pump models from the system for selection; Step 2: The batch simulation module receives the selected single electric water pump model.

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