A generative development system and method for the entire process of electric water pumps

Abstract

This invention discloses a full-process generative development system and method for electric water pumps, belonging to the field of intelligent manufacturing technology. It includes a development system and method. The system comprises a product specification module, a parameter classification module, a parameter calculation module, a component design decision module, a batch simulation module, a database, a specification-level operation port, a digital development port, and a physical development port. The method includes steps such as receiving specification information, creating key parameters, creating basic parameters, selecting necessary and basic parts, building an electric water pump model, virtual testing, and outputting the electric water pump model. This invention can extract key parameters and key parts based on the specifications required for electric water pump development, and on this basis, fully utilize existing product data to build models in batches and conduct virtual testing for use in physical manufacturing. This improves development efficiency, meets the need for rapid product development response, and simultaneously reduces development difficulty and reliance on designers.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing technology, and in particular to a full-process generative development system and method for electric water pumps. Background Technology

[0002] In automotive systems, the device that provides thermal balance for the engine and supplies water to the vehicle body is called a water pump. Unlike traditional gasoline-powered vehicles that use mechanical water pumps, new energy vehicles often use electric water pumps. Currently, the development of electric water pumps is mainly provided by decentralized automotive suppliers, with most companies still adopting traditional methods such as prototype manufacturing, component procurement, and assembly for product development, resulting in low development efficiency. Due to the large differences in demand, short order cycles, and high customization requirements of electric water pump series products, the existing development methods are difficult to meet the requirements of rapid response and differentiated development. Summary of the Invention

[0003] To address the aforementioned shortcomings, this invention provides a full-process generative development system and method for electric water pumps. It can analyze and form design specifications based on the development requirements of electric water pumps, extract key parameters and key components, and on this basis, make full use of existing product data to build models in batches and conduct virtual testing to facilitate physical manufacturing and use. This can improve development efficiency while also reducing development difficulty.

[0004] In order to achieve the objectives of this invention, the following technologies are proposed:

[0005] A fully generative development system for electric water pumps, comprising:

[0006] The 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.

[0007] The 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 the technical parameter name and parameter value.

[0008] The parameter calculation module is used to calculate the parameter values ​​of key parameters based on the specification values.

[0009] The component design decision module is used to classify the various parts of the electric water pump;

[0010] The batch simulation module is used to build electric water pump models and test the models;

[0011] The database includes a specification and parameter mapping table, a parameter summary table, a parameter calculation function table, and a product family database. The specification and parameter mapping table stores the correspondence between each specification name and each technical parameter name. The parameter summary table stores all technical parameter names for all electric water pumps. The parameter calculation function table stores multiple calculation functions, each including a function expression, a technical parameter name, and a specification name. The product family database stores information on n existing products and a list of required parts, where n is a positive integer. The existing product information includes m required parts, and some existing product information also includes a parameter-specific part mapping table and a T... p There are m unique parts, 1 ≤ p ≤ n. The required parts table includes m required parts and a parameter-to-required parts correspondence table, where m is a positive integer. Both required and unique parts include part information, which includes part name, multiple structural variables, and a parameter-to-structure correspondence table. Structural variables include structure name, structure value, and deformation range. A full-process generative development method for electric water pumps using an electric water pump full-process generative development system includes the following steps:

[0012] S100: The product specification module receives specification information;

[0013] S200: The parameter classification module retrieves the specification names from all specification entries and queries the specification-parameter correspondence table to find all corresponding technical parameter names, and creates key parameters accordingly.

[0014] S300: The parameter classification module retrieves the names of all technical parameters except for key parameters from the parameter master table, creates basic parameters for each, and outputs them.

[0015] S400: The parameter calculation module searches for all calculation functions in the parameter calculation function table, uses all calculation functions that contain the specification name in the specification information, substitutes the specification value into the calculation, and obtains the parameter values ​​of all key parameters.

[0016] S500: The component design decision module selects all x essential parts associated with key parameters from the parameter-must-part correspondence table as the first key parts, where x is a positive integer, and treats the other essential parts as basic parts.

[0017] S600: The batch simulation module calls upon the modeling software to create n x There are mx electric water pump models, each of which includes the same basic parts. Each basic part is a corresponding necessary part selected and borrowed from existing product information and input from outside the system. Each electric water pump model uses a different combination of the first key parts.

[0018] 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 it is necessary to borrow some special components as second key components.

[0019] 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 the digital model, and updating of the development module.

[0020] Furthermore, the S700 includes:

[0021] S711: The batch simulation module found c test software, where c is a positive integer, and each test software is used to test at least one key parameter;

[0022] S712: Set i=1;

[0023] S713: Load all electric water pump models into the i-th test software in sequence for testing. If there are test results that match the parameter values ​​of all key parameters tested by the test software, set the first mark for all matching electric water pump models. If there are no matching results, set the second mark for each key parameter that cannot achieve the reference value.

[0024] S714: Set i = i + 1. If i > c, then execute S715; otherwise, return to S713.

[0025] S715: If no second marker appears at this time, execute S716. If a second marker appears, find d key parameters through the second marker, where d is a positive integer. Then, execute the steps of deforming the first key part, borrowing the second key part, and deforming the second key part in sequence.

[0026] S716: Determine whether the number of electric water pump models with c first tags is 1. If yes, use the electric water pump model with c first tags for output in S800 and end S700. If no, perform the selection step to select a single electric water pump model for output in S800 and end S700.

[0027] The beneficial effects of this technical solution are as follows:

[0028] 1. It can quickly respond to differentiated development needs. Depending on the needs, the key parameters and key components extracted will also be different, which makes it easier to develop electric water pumps with different requirements. It can improve development efficiency and better assist staff in development, reducing the number of personnel required.

[0029] 2. It can make full use of some parts of existing products to develop new electronic water pumps through deformation design, reducing development difficulty. It can also conduct virtual testing based on multiple models established during the development process and adjust the borrowing of parts according to the test results. Attached Figure Description

[0030] Figure 1 The overall architecture diagram of the fully generative development system for electric water pumps according to an embodiment of this application is shown.

[0031] Figure 2 The specifications, key parameters, and basic parameter structure diagrams of the embodiments of this application are shown.

[0032] Figure 3 The diagram shows the structure of the parameter calculation function table in an embodiment of this application.

[0033] Figure 4 The diagram shows the structure of the product family database according to an embodiment of this application.

[0034] Figure 5 A component information structure diagram of an embodiment of this application is shown.

[0035] Figure 6 A flowchart illustrating the main steps of the full-process generative development method for electric water pumps according to an embodiment of this application is shown.

[0036] Figure 7 A structural diagram showing the contents of the electric water pump model according to an embodiment of this application is provided.

[0037] Figure 8 A flowchart illustrating the feedback process of an embodiment of this application is shown. Detailed Implementation

[0038] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0039] like Figures 1-5 The illustrated electric water pump end-to-end generative development system includes, as follows: Figure 1 The module shown includes the product specification module, parameter classification module, parameter calculation module, component design decision module, batch simulation module, database, specification layer operation port, digital development port, entity development port, modeling software call interface, testing software call interface, model update interface, and model update interface.

[0040] The product specification module is used to receive specification information, such as... Figure 2 As shown, the specification information includes several specification entries, each containing a specification name and a specification value. It should be noted that the value 'a' shown in the attached figure is not a fixed value, as the number of specification entries received each time may vary.

[0041] The parameter classification module is used to classify the technical parameters of electric water pumps into key parameters and basic parameters, such as... Figure 2 As shown, both key parameters and basic parameters include the technical parameter name and parameter value.

[0042] The parameter calculation module is used to calculate the parameter values ​​of key parameters based on specification values.

[0043] The component design decision module is used to classify the various parts of the electric water pump. Specifically, for the electric water pump, existing design resources are integrated, classified by module and component, and their related attributes are clarified. This serves as a basis for design decision-making processes in new product development, such as determining which components should be reused, modified, or redesigned.

[0044] The batch simulation module is used to build electric water pump models and test the models. Specifically, it simulates the performance of electric water pump components and products and optimizes the parameters.

[0045] More specifically, the batch simulation module includes a preliminary model module and a batch simulation verification module.

[0046] After requirements analysis, specification determination, parameter calculation, and component design decisions, the initial model module uses parametric modeling to generate preliminary component models and product models.

[0047] The batch simulation verification module performs performance testing on components and functional testing on products.

[0048] The database includes a specification and parameter mapping table, a parameter summary table, a parameter calculation function table, a parameter value temporary storage library, a product family database, a user information database, and a parameter and testing software mapping table. The specification and parameter mapping table stores the correspondence between each specification name and each technical parameter name, and the parameter summary table stores all technical parameter names for all electric water pumps, such as... Figure 3 As shown, the parameter calculation function table stores multiple calculation functions, including function expressions, technical parameter names, and specification names. 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 information on n existing products, as well as a list of required parts. The existing product information includes m required parts, and some existing product information also includes a parameter-specific part mapping table and a T... p There are m unique parts, 1 ≤ p ≤ n. A parameter-to-unique-parts mapping table stores the correspondence between the names of each technical parameter and the names of each unique part. A mandatory parts table includes m mandatory parts, and a parameter-to-mandatory-parts mapping table stores the correspondence between the names of each technical parameter and the names of each mandatory part. Both mandatory and unique parts include part information, such as... Figure 5As shown, the part information includes the part name, multiple structural variables, and a parameter-to-structure mapping table. Structural variables include structural name, structural value, and deformation range. The parameter-to-structure mapping table stores the correspondence between the names of each technical parameter and the structural names of each structural variable. It's important to note that the k value shown in the attached diagram is not a fixed value, as the number of structural variables may differ for each part. The user information database stores login information for users authorized to operate the system, and includes three user types: specification-level operators, digital developers, and entity developers. The parameter-to-test software mapping table stores the correspondence between the names of each technical parameter and the names of each test software. The database provides abundant original design data, facilitating data transfer across different simulation platforms and offering advantages such as cross-platform operation and data result sharing.

[0049] The specification layer operation port is used by specification layer operators to connect and interact with the system.

[0050] The digital development port is used by digital developers to connect to and interact with the system. Preferably, the digital developers also include personnel who manage the end-to-end generative development system for electric water pumps, and who can update the content in the database to continuously improve the system and further enhance its development capabilities.

[0051] The entity development port is used by entity developers to connect and interact with the system.

[0052] The modeling software call interface is used to connect to and call the modeling software in batch simulation modules.

[0053] The test software call interface is used to connect to and call the test software in batch simulation modules.

[0054] The model update interface is used to add a feedback process to correct the digital model, structural model, and performance model, and update the development process.

[0055] The overall approach to the generative development of electric water pumps using the aforementioned generative development system for the entire electric water pump process is as follows: Figure 6 As shown, follow these steps:

[0056] S100: The product specification module receives specification information input from the specification layer operation port;

[0057] S200: The parameter classification module retrieves the specification names from all specification entries and queries the specification-parameter correspondence table to find all corresponding technical parameter names, and creates key parameters accordingly.

[0058] S300: The parameter classification module retrieves the names of all technical parameters except for key parameters from the parameter master table, creates basic parameters for each, and outputs them from the digital development port.

[0059] S400: The parameter calculation module searches for all calculation functions in the parameter calculation function table, uses all calculation functions that contain the specification name in the specification information, substitutes the specification value into the calculation, and obtains the parameter values ​​of all key parameters.

[0060] Specifically, after S400 is completed, S450 is executed first: 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 the determination is made according to the standard agreed in the "product specifications".

[0061] S500: The component design decision module selects all x essential parts associated with key parameters from the parameter-must-part correspondence table and uses them as the first key parts, while the other essential parts are used as basic parts.

[0062] S600: The batch simulation module calls the modeling software through an interface to establish n x Each electric water pump model includes mx identical basic parts. Each basic part is a corresponding required part selected and borrowed from existing product information by inputting through the digital development port. Each electric water pump model uses a different combination of first key parts.

[0063] S700: The batch simulation module uses a parameter-to-test software mapping table to find all test software associated with each key parameter, and then calls the test software through the test software call interface to test each key parameter of each electric water pump model. This determines whether each first key component borrows from existing product information and whether it needs to borrow certain unique parts as second key components. Electric water pump models with second key components are as follows: Figure 7 As shown, it includes x first key parts, y second key parts, and mx basic parts;

[0064] More specifically, the S700 includes the following detailed steps:

[0065] S711: The batch simulation module found c test software programs, each of which is used to test at least one key parameter;

[0066] S712: Set i=1;

[0067] S713: Load all electric water pump models into the i-th test software in sequence for testing. If there are test results that match the parameter values ​​of all key parameters tested by the test software, set the first mark for all matching electric water pump models. If there are no matching results, set the second mark for each key parameter that cannot achieve the reference value.

[0068] S714: Set i = i + 1. If i > c, then execute S715; otherwise, return to S713.

[0069] S715: If no second marker appears at this time, execute S716; if a second marker appears, find d key parameters through the second marker, and then execute S717.

[0070] S716: Determine whether the number of electric water pump models with c first tags is 1. If yes, use the electric water pump model with c first tags for output in S800 and end S700. If no, execute the selection step, select a single electric water pump model for output in S800 and end S700.

[0071] S717: Set j=1;

[0072] S718: Find all the first key parts corresponding to the j-th key parameter through the parameter-to-must-parts correspondence table, and find all the structural variables in these first key parts that correspond to the j-th key parameter through the parameter-to-structure correspondence table, and use them as the first key variables;

[0073] S719: Set j = j + 1. If j > d, then execute S720; otherwise, return to S718.

[0074] S720: The batch simulation module receives the deformation granularity e set from the digital development port. Specifically, the e value is expressed as a percentage. The larger the e value, the larger the granularity, and the faster the system runs, but the lower the accuracy. The smaller the e value, the smaller the granularity, and the slower the system runs, but the higher the accuracy.

[0075] S721: The batch simulation module deforms each first key variable of each first key part found by the d key parameters described in S715 within the deformation range, and generates z first deformation models according to the deformation granularity e. Specifically, these first deformation models cover all deformation situations of all first key variables of all first key parts described in this step.

[0076] S722: Initialize i=1;

[0077] S723: Load all first deformation models into the i-th test software in sequence for testing. If there are test results that match the parameter values ​​of all key parameters tested by the test software, set the third mark for all matching first deformation models. If there are no matching results, set the fourth mark for each key parameter that cannot achieve the reference value.

[0078] S724: Set i = i + 1. If i > c, then execute S725; otherwise, return to S723.

[0079] S725: If no fourth marker appears at this time, execute S726; if a fourth marker appears, find f key parameters through the fourth marker and then execute S727.

[0080] S726: Determine whether the number of first deformed models with c third marks is 1. If yes, use the first deformed model with c third marks as an electric water pump model for output in S800 and end S700. If no, execute the selection step to select a single electric water pump model for output in S800 and end S700.

[0081] S727: Set s=1;

[0082] S728: Search through the existing product information in sequence, find all the unique parts corresponding to the s-th key parameter from the parameter-unique parts correspondence table, and use them as the second key parts respectively;

[0083] S729: Set s = s + 1. If s > f, then execute S730; otherwise, return to S728.

[0084] S730: Based on all the first deformation models, the batch simulation module remodels multiple secondary test models according to all cases of adding at least one second key part;

[0085] S731: Initialize i=1;

[0086] S732: Load all secondary test models into the i-th test software in sequence for testing. If there are test results that match the parameter values ​​of all key parameters tested by the test software, set the fifth mark for all matching secondary test models. If there are no matching results, set the sixth mark for each key parameter that cannot achieve the reference value.

[0087] S733: Set i = i + 1. If i > c, then execute S734; otherwise, return to S732.

[0088] S734: If no sixth marker appears at this time, execute S735; if a sixth marker appears, find g key parameters through the sixth marker and then execute S736.

[0089] S735: Determine whether the number of secondary test models with c fifth labels is 1. If yes, use the secondary test model with c fifth labels as an electric water pump model for output in S800 and end S700. If no, execute the selection step to select a single electric water pump model for output in S800 and end S700.

[0090] S736: Set q=1;

[0091] S737: Find all structural variables corresponding to the q-th key parameter in the second key part selected in S728 through the parameter-structure correspondence table, and use them as the second key variables;

[0092] S738: Set q = q + 1. If q > g, then execute S739; otherwise, return to S737.

[0093] S739: The batch simulation module deforms each second key variable of each second key part found by the g key parameters described in S734 within the deformation range, and generates w second deformation models according to the deformation granularity e. Specifically, these second deformation models cover all deformation situations of all second key variables of all second key parts described in this step.

[0094] S740: Initialize i=1;

[0095] S741: Load all second deformation models into the i-th test software in sequence for testing. If there are test results that match the parameter values ​​of all key parameters tested by the test software, set the seventh mark for all matching second deformation models. If there are no matching results, set the eighth mark for each key parameter that cannot achieve the reference value.

[0096] S742: Set i = i + 1. If i > c, then execute S743; otherwise, return to S741.

[0097] S743: If no eighth marker appears at this time, execute S744; if an eighth marker appears, find f key parameters through the eighth marker and then execute S745.

[0098] S744: Determine if the number of electric water pump models with c seventh marks is 1. If yes, use the second deformation model with c seventh marks as the electric water pump model for output in S800 and end S700. If no, perform the selection step to select a single electric water pump model for output in S800 and end S700.

[0099] S745: Outputs all second-deformation models from the digital development port, along with f key parameters for digital developers to reference in developing new parts;

[0100] S746: After the digital developers develop 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 developers. 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 digitally tested and confirmed by the digital developers externally, it does not need to return to this system for digital testing.

[0101] Due to the large number of steps involved in the S700 process, the details are explained here:

[0102] Steps S711 to S716 essentially involve testing to determine whether a new electric water pump that meets the requirements can be developed using only the necessary parts from existing products. If this is not possible, then:

[0103] In steps S717~S726, the actual process involves deforming certain necessary parts and testing to determine whether it is possible to develop a new electric water pump that meets the requirements solely through the deformation of these parts. If it is still not possible, then:

[0104] Steps S727 to S735, based on the above borrowing and modification, involve testing to determine whether it is possible to develop a new electric water pump that meets the requirements by simply borrowing some unique parts from existing products without modifying those parts. If this is still not possible, then:

[0105] Steps S736 to S744, based on the above borrowing and modification, involve testing to determine whether a new electric water pump product meeting the requirements can be developed by modifying the aforementioned unique parts. If this is still not possible, then:

[0106] In steps S745-S746, feedback is sent outside the system, specifically to the digital developers, indicating the need to develop several new parts to achieve a new electric water pump product that meets the requirements.

[0107] These specific steps enable the development of electric water pumps to proceed from easy to difficult, prioritizing the use of parts from existing products and common parts, and avoiding adjustments to part parameters. Through multiple levels, the development efficiency and feasibility of electric water pumps can be improved.

[0108] The above selection steps include:

[0109] Step 1: Output from the system. Specifically, output various electric water pump models from the digital development port for selection. At this point, the digital developers can manually select based on factors such as material usage and cost.

[0110] Step 2: The batch simulation module receives the selected single electric water pump model from the digital development port.

[0111] 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 provides feedback through the model update interface based on the prototype or actual test results, corrects the model, and updates the development process.

[0112] The values ​​of n, m, x, c, and d mentioned above are all positive integers.

[0113] Specifically, in the physical development phase, each part is first produced, 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, and rotor magnets. The parts are then assembled into physical samples to verify the effectiveness of virtual manufacturing.

[0114] Products that have passed testing and verification are referred to as finished products in product management. After packaging, they are stored in the warehouse. Using the company's ERP software, inventory, shipping, and orders can all be effectively managed, improving productivity in the final stage of product development.

[0115] The following is a brief explanation of the system and method of this application, using a simple example of a customer's specifications. For more complex situations, analogies can be drawn.

[0116] A customer's required specifications include:

[0117] (1) The flow rate of the electronic water pump shall not be less than 45 L / min;

[0118] (2) The head of the electronic water pump shall not be less than 12 meters.

[0119] (3) Improve the efficiency of electric water pumps.

[0120] (4) Implement lightweight design.

[0121] The product specification module analyzes customer requirements and, combined with the company's actual situation, further formulates practical and specific product development specifications for actual development. As follows:

[0122] (1) The rated power of the electric water pump motor is 100W. This means that when optimizing the electromagnetic model parameters of the motor, the electromagnetic parameters should be reasonably determined, such as the number of turns of the motor winding, the thickness of the magnet, and the air gap distance. According to the formula for centrifugal pump shaft power, flow rate, and head in the parameter calculation function table, a key parameter will be calculated. The technical parameter name of this key parameter is power:

[0123] Power = 1100 × 9.8 × 45 / 1000 / 60 × 12 = 97.02 W.

[0124] In the formula, 1100 is the density of the water-based ethylene glycol coolant, 9.8 is the acceleration due to gravity, and 45 and 12 are specification parameters. Since the unit of flow rate for centrifugal pumps is m³ / s... 3 / s, depending on the unit conversion requirements, needs to be divided by 1000 and 60. Preferably, in S400, a safety margin can be added through the digital development port to make the rated power 100 W.

[0125] (2) The working efficiency of the electric water pump can reach 30%.

[0126] (3) The electric water pump is 5% lighter than the existing 60W pump. This means that the materials used for the casing and other components need to be selected, and low-density, high-temperature resistant materials such as nylon should be chosen. Based on the key parameter, namely power, the first key components are selected, including the impeller, motor rotor, and motor stator. Other components are necessary for manufacturing the electric water pump but will not affect the key parameters. As basic components, there are many of these components, which will not be listed here. The basic components are directly selected by the digital development team.

[0127] Next, the software is used to model and conduct multiple rounds of testing through detailed steps in S700 to determine the individual parts. For example, Siemens NX software is used for modeling, Maxwell is selected as the motor simulation and optimization software, Motor-CAD software is selected as the thermal analysis software, and ANSYS is selected as the water pump motor vibration analysis software.

[0128] Preferably, although the parameters have been verified and the parts have been adjusted after S700, it is still necessary to check the risks in the manufacturing process. Therefore, after S700, CAPP (Computer-Aided Process Planning) software can be used to virtually verify the processing technology.

[0129] After virtual verification, the physical manufacturing stage begins. Based on the prototype test results, the simulation results from the digital verification stage are compared to analyze the error magnitude and causes. The electromagnetic model, thermal model, and vibration model of the electric water pump are calibrated, and the digital model and generative development process are updated to better realize the next design.

[0130] For example: Prototype test results are used to verify and improve digital verification (see digital verification process). Figure 8 Steps ①-④), assess model accuracy and calibrate parameters (see Figure 8 Steps ⑤-⑩). Although the methods and software differ, the verification and calibration of electromagnetic, thermal, and vibration models follow the same process: verification, feedback, calibration, and updating. According to the enterprise 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.

[0131] For example, initially, the thermal model of the electric water pump (in Motor-CAD software) considered electromagnetic heat dissipation through air gap and convection cooling. However, prototype testing showed that increased vibration under operating conditions led to increased mechanical losses, reduced efficiency, and airflow disturbances. Based on test feedback, the thermal model related to friction and drag loss coefficients was recalibrated. The updated model accurately represents the actual situation.

[0132] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A fully generative development system for electric water pumps, characterized in that, include: The 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. The 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 the technical parameter name and parameter value. The parameter calculation module is used to calculate the parameter values ​​of key parameters based on the specification values. The component design decision module is used to classify the various parts of the electric water pump; The batch simulation module is used to build electric water pump models and test the models; The database includes a specification and parameter mapping table, a parameter summary table, a parameter calculation function table, and a product family database. The specification and parameter mapping table stores the correspondence between each specification name and each technical parameter name. The parameter summary table stores all technical parameter names for all electric water pumps. The parameter calculation function table stores multiple calculation functions, each including a function expression, a technical parameter name, and a specification name. The product family database stores information on n existing products and a list of required parts, where n is a positive integer. The existing product information includes m required parts, and some existing product information also includes a parameter-specific part mapping table and a T... p There are m unique parts, 1≤p≤n. The required parts table includes m required parts and a parameter-to-required parts correspondence table, where m is a positive integer. Both required parts and unique parts include part information, which includes part name, multiple structural variables, and a parameter-to-structure correspondence table. Structural variables include structure name, structure value, and deformation range.

2. The electric water pump full-process generative development system according to claim 1, characterized in that, The database also includes a user information repository, which stores login information for users authorized to operate the system. It includes three user types: specification layer operators, digital developers, and entity developers. The system also includes: The specification layer operation port is used by specification layer operators to connect and interact with the system. The digital development port is used by digital developers to connect and interact with the system. The entity development port is 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, characterized in that, Also includes: The modeling software calling interface is used to connect to and call the modeling software in the batch simulation module. The test software call interface is used to connect to and call the test software in batch simulation modules. The model update interface is used to add a feedback process, providing feedback and corrections to the digital model, structural model, and performance model, and updating the development process.

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

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

6. A fully generative development method for electric water pumps, characterized in that, The electric water pump full-process generative development system according to any one of claims 1 to 5 includes the following steps: S100: The product specification module receives specification information; S200: The parameter classification module retrieves the specification names from all specification entries and queries the specification-parameter correspondence table to find all corresponding technical parameter names, and creates key parameters accordingly. S300: The parameter classification module retrieves the names of all technical parameters except for key parameters from the parameter master table, creates basic parameters for each, and outputs them. S400: The parameter calculation module searches for all calculation functions in the parameter calculation function table, uses all calculation functions that contain the specification name in the specification information, substitutes the specification value into the calculation, and obtains the parameter values ​​of all key parameters. S500: The component design decision module selects all x essential parts associated with key parameters from the parameter-must-part correspondence table as the first key parts, where x is a positive integer, and treats the other essential parts as basic parts. S600: The batch simulation module calls upon the modeling software to create n x There are mx electric water pump models, each of which includes the same basic parts. Each basic part is a corresponding necessary part selected and borrowed from existing product information and input from outside the system. Each electric water pump model uses a different combination of the 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 it is necessary to borrow some special components 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 the digital model, and updating of the development module.

7. The fully generative development method for electric water pumps according to claim 6, characterized in that, The steps between S400 and S500 also include: S450: If multiple parameter values ​​are calculated for key parameters with the same technical parameter name in S400, then after S400 ends, only the parameter value with the smallest range is retained for each individual key parameter.

8. The fully generative development method for electric water pumps according to claim 6, characterized in that, The S700 includes: S711: The batch simulation module found 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: Load all electric water pump models into the i-th test software in sequence for testing. If there are test results that match the parameter values ​​of all key parameters tested by the test software, set the first mark for all matching electric water pump models. If there are no matching results, set the second mark for each key parameter that cannot achieve the reference value. S714: Set i = i + 1. If i > c, then execute S715; otherwise, return to S713. S715: If no second marker appears at this time, execute S716. If a second marker appears, find d key parameters through the second marker, where d is a positive integer. Then, execute the steps of deforming the first key part, borrowing the second key part, and deforming the second key part in sequence. S716: Determine whether the number of electric water pump models with c first tags is 1. If yes, use the electric water pump model with c first tags for output in S800 and end S700. If no, perform the selection step to select a single electric water pump model for output in S800 and end S700.

9. The fully generative development method for electric water pumps according to claim 8, characterized in that, The selection process includes: 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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