CFD-based vehicle connector wading virtual verification method, device and equipment

Abstract

The invention discloses a CFD-based vehicle connector wading virtual verification method, device and equipment, and relates to the technical field of vehicle production and manufacturing, and the method comprises the steps: building a vehicle connector wading simulation model based on a whole vehicle, and carrying out the setting of simulation boundary conditions; based on the vehicle connector wading simulation model based on the whole vehicle, performing simulation calculation to obtain simulation data; and fluid-solid coupling simulation calculation is carried out according to the simulation data, a simulation result is obtained, and wading performance verification of the vehicle connector is realized. According to the application, wading verification of the vehicle connector is realized in a virtual verification mode, so that the vehicle connector with proper waterproof performance can be selected more quickly and accurately.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle production and manufacturing, and specifically to a CFD-based water virtual verification method, device, and equipment for vehicle connectors. Background Art

[0002] To ensure driving safety, the electrical interfaces of electrical equipment, i.e., connectors, are selected and designed according to waterproofing specifications during the vehicle design phase. During the verification phase, the waterproofing performance of electrical equipment is tested for water to check its safety and reliability in water-related situations. However, due to the compact chassis layout of hydrogen fuel and other new energy light trucks, the electrical interfaces of specific equipment (such as the low-voltage connector of the power battery) are surrounded by many other devices, making it impossible for designers to confirm the waterproofing level requirements of the connectors through direct observation. Therefore, how to more quickly and accurately select automotive connectors with appropriate waterproofing performance through virtual verification during the design phase has become an urgent problem that needs to be solved. Summary of the Invention

[0003] The present application provides a CFD-based method, device and equipment for virtual water verification of vehicle connectors, which realizes water verification of vehicle connectors through virtual verification, thereby more quickly and accurately selecting vehicle connectors with suitable waterproof performance.

[0004] In a first aspect, an embodiment of the present application provides a CFD-based virtual water verification method for a vehicle connector, the CFD-based virtual water verification method for a vehicle connector comprising:

[0005] Establish a water-resistant simulation model for vehicle connectors based on the entire vehicle and set simulation boundary conditions;

[0006] Based on the vehicle-use connector wading simulation model based on the whole vehicle, simulation calculation is performed to obtain simulation data;

[0007] A fluid-solid coupling simulation calculation is performed based on the simulation data to obtain simulation results, thereby realizing water wading performance verification of the vehicle connector.

[0008] In conjunction with the first aspect, in one embodiment, establishing a vehicle-based vehicle connector wading simulation model specifically includes:

[0009] Use multiphase flow model to mesh the vehicle data model;

[0010] Construct the wading pool simulation calculation domain and set boundary conditions;

[0011] An electrical equipment layout model is established, and a water-resistant simulation model of the vehicle connector is constructed.

[0012] In combination with the first aspect, in one implementation, the electrical equipment layout model includes the geometric structure and positional relationship of the electrical interface.

[0013] In conjunction with the first aspect, in one embodiment, setting the simulation boundary conditions specifically includes:

[0014] Set the boundary conditions of the vehicle grid according to the speed signal of the water wading test;

[0015] Set the material properties for the water and air domains.

[0016] In combination with the first aspect, in one embodiment, performing simulation calculation based on the vehicle-based vehicle connector wading simulation model to obtain simulation data specifically includes:

[0017] A multiphase flow model is used to simulate the interaction between water and air, and vehicle motion is simulated based on dynamic mesh technology;

[0018] The instantaneous pressure distribution at the vehicle connector is calculated to obtain simulation data, where the simulation data is pressure data.

[0019] In conjunction with the first aspect, in one embodiment, performing fluid-structure coupling simulation calculation based on the simulation data to obtain simulation results specifically includes:

[0020] Based on the obtained simulation data, fluid-solid coupling simulation is performed;

[0021] Acquire the displacement and deformation simulation data of the vehicle connector and obtain the simulation results.

[0022] In conjunction with the first aspect, in one embodiment, after obtaining the simulation results, the method further includes:

[0023] Based on the obtained simulation results, determine whether the vehicle connector wading simulation meets the preset stop conditions:

[0024] If yes, the simulation results are output;

[0025] If not, a water-resistant simulation model of the vehicle connector based on the entire vehicle is established again, and the simulation boundary conditions are set, and the cycle continues.

[0026] In conjunction with the first aspect, in one embodiment, outputting the simulation results specifically includes:

[0027] Collect the displacement and deformation simulation data of the vehicle connector and obtain the virtual test results;

[0028] The virtual test results are analyzed to determine whether there is displacement and deformation of the automotive connector, and whether the displacement and deformation will cause water leakage, thereby generating a connector water wading performance evaluation report.

[0029] In a second aspect, an embodiment of the present application provides a CFD-based vehicle connector wading virtual verification device, the CFD-based vehicle connector wading virtual verification device comprising:

[0030] Create a module for establishing a water-resistant simulation model for vehicle connectors based on the entire vehicle and setting simulation boundary conditions;

[0031] A simulation module, which is used to perform simulation calculations based on the vehicle-use connector wading simulation model based on the entire vehicle to obtain simulation data;

[0032] An execution module is used to perform fluid-solid coupling simulation calculation based on the simulation data, obtain simulation results, and realize water wading performance verification of the vehicle connector.

[0033] In the third aspect, an embodiment of the present application provides a CFD-based vehicle connector water wading virtual verification device, which includes a processor, a memory, and a CFD-based vehicle connector water wading virtual verification program stored on the memory and executable by the processor, wherein when the CFD-based vehicle connector water wading virtual verification program is executed by the processor, the steps of the above-mentioned CFD-based vehicle connector water wading virtual verification method are implemented.

[0034] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0035] (1) By using computational fluid dynamics (CFD) technology, the geometric structure of the electrical equipment on the vehicle and the location of the electrical interface of the equipment are accurately modeled, and the wading conditions at different vehicle speeds (e.g., 30-90 km / h) are simulated. This overcomes the problem of insufficient replication of existing test scenarios and improves the accuracy and reliability of simulation results.

[0036] (2) The multiphase flow model is used to simulate the interaction between water and air, and the dynamic mesh technology is used to simulate the vehicle motion. This can accurately simulate the actual force conditions of the vehicle during high-speed wading, avoiding the problem of insufficient accuracy and credibility of speed definition and speed simulation algorithms in the existing technology;

[0037] (3) It can simulate a variety of layout environments and working conditions, such as different combinations of water depths (0.3-0.6m), vehicle speeds, and water entry angles, which greatly improves test efficiency and accuracy and overcomes the limitations of environmental layout experiments during the vehicle wading test phase;

[0038] (4) Computer modeling can ensure the repeatability of data, reduce the manpower cost, material cost, time cost and other inputs for the layout of the environment for actual vehicle verification tests, and improve the economy and efficiency of the vehicle's water wading performance development. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a flow chart of the CFD-based virtual verification method for water-based vehicle connectors in this application;

[0040] Figure 2 This is a schematic diagram of the functional modules of the CFD-based vehicle connector wading virtual verification device for this application;

[0041] Figure 3 This is a schematic diagram of the hardware structure of the CFD-based vehicle connector water wading virtual verification equipment for this application. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 this application.

[0043] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0044] First, an embodiment of the present application provides a CFD-based virtual verification method for water wading of vehicle connectors. It uses CFD (Computational Fluid Dynamics) technology to simulate high-speed water wading conditions under specific environments on a computer, and simulates the instantaneous pressure distribution at the test vehicle connector, while ensuring the repeatability and reliability of the test, so that technicians can accurately simulate high-speed water wading conditions under non-real vehicle and non-laboratory conditions to confirm the waterproof level requirements of the vehicle connector.

[0045] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of the CFD-based virtual verification method for vehicle connector wading in this application. Figure 1 As shown in the figure, the CFD-based virtual verification method for automotive connector wading includes:

[0046] S1: Establish a water-resistant simulation model for vehicle connectors based on the entire vehicle and set simulation boundary conditions;

[0047] S2: performing simulation calculation based on the vehicle connector wading simulation model based on the whole vehicle to obtain simulation data;

[0048] S3: Perform fluid-solid coupling simulation calculation based on the simulation data to obtain simulation results, thereby verifying the water wading performance of the vehicle connector.

[0049] Specifically, first establish a vehicle-based vehicle-level vehicle connector wading simulation model, that is, a vehicle-level vehicle connector wading simulation model, and then set the simulation boundary conditions, perform the first round of simulation calculations, output the first round of simulation data, and then perform the second round of fluid-solid coupling simulation calculations based on the first round of simulation data to obtain simulation results, and judge whether the simulation results meet the stop conditions. If so, output the simulation results. If not, execute the vehicle connector wading virtual verification method of this application again until the stop conditions are met.

[0050] Furthermore, in one embodiment, a water wading simulation model of a vehicle connector based on a whole vehicle is established, specifically including:

[0051] S101: Use the multiphase flow model to mesh the vehicle data model;

[0052] S102: Construct a wading pool simulation calculation domain and set boundary conditions;

[0053] S103: Establishing an electrical equipment layout model to construct a vehicle connector wading simulation model, wherein the electrical equipment layout model includes the geometric structure and positional relationship of the electrical interface (ie, the connector).

[0054] Specifically, the multiphase flow model is used to mesh the vehicle data model, then the wading pool simulation calculation domain is constructed, and the boundary conditions are set. After that, the electrical equipment layout model is established, including the geometric structure and positional relationship of the electrical interface (i.e., connector).

[0055] Furthermore, in one embodiment, setting simulation boundary conditions specifically includes:

[0056] S111: Setting the boundary conditions of the vehicle grid according to the water wading test speed signal;

[0057] S112: Set the material properties of the water and air domains.

[0058] Specifically, for the setting of simulation boundary conditions, the boundary conditions of the vehicle grid are set according to the water wading test speed signal, and the material properties of the water domain and the air domain are set.

[0059] Furthermore, in one embodiment, based on the vehicle-based vehicle connector wading simulation model, simulation calculation is performed to obtain simulation data, specifically including:

[0060] S201: Use multiphase flow models to simulate the interaction between water and air, and use dynamic mesh technology to simulate vehicle motion;

[0061] S202: Calculate the instantaneous pressure distribution at the vehicle connector to obtain simulation data, where the simulation data is pressure data.

[0062] Specifically, a multiphase flow model is used to simulate the interaction between water and air, and dynamic mesh technology is used to simulate vehicle motion. Then, the instantaneous pressure distribution at the vehicle connector is calculated to obtain simulation data, namely the pressure data at the vehicle connector.

[0063] Furthermore, in one embodiment, a fluid-structure coupling simulation calculation is performed based on the simulation data to obtain a simulation result, specifically including:

[0064] S301: performing fluid-solid coupling simulation based on the obtained simulation data;

[0065] S302: Acquire displacement and deformation simulation data of the vehicle connector to obtain simulation results.

[0066] Specifically, a fluid-structure coupling simulation is performed based on the obtained simulation data, and then the vehicle motion is simulated in combination with the dynamic mesh technology to obtain the displacement and deformation simulation data of the vehicle connector.

[0067] Furthermore, in one embodiment, after obtaining the simulation results, the method further includes:

[0068] Based on the obtained simulation results, determine whether the vehicle connector wading simulation meets the preset stop conditions:

[0069] If yes, the simulation results are output;

[0070] If not, a water-resistant simulation model of the vehicle connector based on the entire vehicle is established again, and the simulation boundary conditions are set, and the cycle continues.

[0071] Specifically, after obtaining the simulation results, it is determined whether the vehicle connector wading simulation meets the preset stop conditions. If so, the simulation results are output; if not, the vehicle connector wading virtual verification method described in this application is executed again until the preset simulation stop conditions are met, that is, the corresponding simulation experiment requirements are met, and finally the simulation results are output.

[0072] In this application, simulation results are output, specifically including:

[0073] a: Collect the displacement and deformation simulation data of the vehicle connector to obtain the virtual test results;

[0074] b: Analyze the virtual test results to determine whether there is displacement and deformation of the automotive connector, and whether the displacement and deformation will cause water leakage, thereby generating a connector water wading performance evaluation report.

[0075] The CFD-based virtual water wading verification method for vehicle connectors in the embodiment of the present application utilizes computational fluid dynamics (CFD) technology to accurately model the geometric structure of the electrical equipment on the vehicle and the location of the electrical interface of the equipment, and simulates the water wading conditions at different vehicle speeds (e.g., 30-90 km / h). This overcomes the problem of insufficient replication of existing test scenarios and improves the accuracy and reliability of simulation results. By using a multiphase flow model to simulate the interaction between water and air and combining it with dynamic mesh technology to simulate vehicle motion, it can accurately simulate the actual force conditions of the vehicle during high-speed water wading, avoiding the problems of insufficient accuracy and reliability of speed definition and speed simulation algorithms in the prior art. It can simulate a variety of layout environments and working conditions, such as combinations of different water depths (0.3-0.6 m), vehicle speeds, and water entry angles, greatly improving test efficiency and accuracy and overcoming the limitations of environmental layout experiments during the whole vehicle water wading test phase. Through computer modeling, the repeatability of data can be ensured, reducing the various investments such as manpower costs, material costs, and time costs of environmental layout for actual vehicle verification tests, thereby improving the economy and efficiency of vehicle water wading performance development.

[0076] In a second aspect, an embodiment of the present application also provides a CFD-based virtual water verification device for vehicle connectors.

[0077] In one embodiment, referring to Figure 2 , Figure 2 This is a functional module diagram of the CFD-based vehicle connector wading virtual verification device for this application. Figure 2 As shown, the CFD-based water wading virtual verification device for automotive connectors includes: a creation module, a simulation module, and an execution module.

[0078] The creation module is used to establish a water-crossing simulation model of a vehicle connector based on a whole vehicle and to set simulation boundary conditions; the simulation module is used to perform simulation calculations based on the water-crossing simulation model of the vehicle connector based on the whole vehicle to obtain simulation data; the execution module is used to perform fluid-solid coupling simulation calculations based on the simulation data to obtain simulation results and realize water-crossing performance verification of the vehicle connector.

[0079] Specifically, first establish a vehicle-based vehicle-level vehicle connector wading simulation model, that is, a vehicle-level vehicle connector wading simulation model, then set the simulation boundary conditions, perform the first round of simulation calculations, output the first round of simulation data, and then perform the second round of fluid-solid coupling simulation calculations based on the first round of simulation data to obtain simulation results. It is judged whether the simulation results meet the stop conditions. If they do, the simulation results are output. If not, the vehicle connector wading virtual verification method of this application is executed again until the stop conditions are met. Using CFD technology, high-speed wading conditions under specific environments are simulated on a computer, and the instantaneous pressure distribution at the vehicle connector is simulated and tested. At the same time, the repeatability and reliability of the test are ensured, so that technicians can accurately simulate high-speed wading conditions under non-real vehicle and non-laboratory conditions and confirm the waterproof level requirements of the vehicle connector.

[0080] In this application, a water-resistant simulation model of a vehicle connector based on a complete vehicle is established, specifically including:

[0081] Use multiphase flow model to mesh the vehicle data model;

[0082] Construct the wading pool simulation calculation domain and set boundary conditions;

[0083] An electrical equipment layout model is established, and a water-resistant simulation model of the vehicle connector is constructed.

[0084] In this application, the electrical equipment layout model includes the geometric structure and positional relationships of the electrical interfaces. Specifically, the vehicle data model is meshed using a multiphase flow model. A wading pool simulation domain is then constructed, and boundary conditions are set. Finally, the electrical equipment layout model is established, including the geometric structure and positional relationships of the electrical interfaces (i.e., connectors).

[0085] In this application, simulation boundary conditions are set, specifically including:

[0086] Set the boundary conditions of the vehicle grid according to the speed signal of the water wading test;

[0087] Set the material properties for the water and air domains.

[0088] In this application, based on the vehicle-based vehicle connector wading simulation model, simulation calculations are performed to obtain simulation data, specifically including:

[0089] A multiphase flow model is used to simulate the interaction between water and air, and vehicle motion is simulated based on dynamic mesh technology;

[0090] The instantaneous pressure distribution at the vehicle connector is calculated to obtain simulation data, where the simulation data is pressure data.

[0091] Specifically, a multiphase flow model is used to simulate the interaction between water and air, and dynamic mesh technology is used to simulate vehicle motion. Then, the instantaneous pressure distribution at the vehicle connector is calculated to obtain simulation data, namely the pressure data at the vehicle connector.

[0092] In this application, a fluid-solid coupling simulation calculation is performed based on the simulation data to obtain simulation results, which specifically include:

[0093] Based on the obtained simulation data, fluid-solid coupling simulation is performed;

[0094] Acquire the displacement and deformation simulation data of the vehicle connector and obtain the simulation results.

[0095] In this application, after obtaining the simulation results, it also includes:

[0096] Based on the obtained simulation results, determine whether the vehicle connector wading simulation meets the preset stop conditions:

[0097] If yes, the simulation results are output;

[0098] If not, a water-resistant simulation model of the vehicle connector based on the entire vehicle is established again, and the simulation boundary conditions are set, and the cycle continues.

[0099] In this application, simulation results are output, specifically including:

[0100] Collect the displacement and deformation simulation data of the vehicle connector and obtain the virtual test results;

[0101] The virtual test results are analyzed to determine whether there is displacement and deformation of the automotive connector, and whether the displacement and deformation will cause water leakage, thereby generating a connector water wading performance evaluation report.

[0102] By utilizing computational fluid dynamics technology, the geometric structure of the electrical equipment on the vehicle and the location of the equipment's electrical interfaces are accurately modeled, and wading conditions at different vehicle speeds are simulated, overcoming the problem of insufficient replication of existing test scenarios and improving the accuracy and reliability of simulation results. A multiphase flow model is used to simulate the interaction between water and air, combined with dynamic mesh technology to simulate vehicle motion, which can accurately simulate the actual force conditions of the vehicle during high-speed wading, avoiding the problems of insufficient accuracy and reliability of speed definitions and speed simulation algorithms in existing technologies. A variety of layout environments and working conditions can be simulated, such as combinations of different water depths, vehicle speeds, and entry angles, greatly improving test efficiency and accuracy, and overcoming the limitations of environmental layout experiments during the whole vehicle wading test phase. Computer modeling can ensure data repeatability, reduce various investments such as manpower, material costs, and time costs in conducting environmental layout for actual vehicle verification tests, and improve the economy and efficiency of the whole vehicle's wading performance development.

[0103] On the third aspect, an embodiment of the present application provides a CFD-based vehicle connector water wading virtual verification device. The CFD-based vehicle connector water wading virtual verification device can be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0104] Reference Figure 3 , Figure 3 The hardware structure diagram of the CFD-based vehicle connector wading virtual verification device involved in the embodiment of the present application is as follows. In the embodiment of the present application, the CFD-based vehicle connector wading virtual verification device may include a processor, a memory, a communication interface, and a communication bus.

[0105] The communication bus may be of any type and is used to interconnect the processor, memory, and communication interface.

[0106] Communication interfaces include input / output (I / O), physical, and logical interfaces, which are used to interconnect components within the CFD-based vehicle connector water wading virtual verification device, as well as to interconnect the CFD-based vehicle connector water wading virtual verification device with other devices (such as other computing devices or user devices). Physical interfaces can be Ethernet, fiber, or ATM interfaces, while user devices can be displays or keyboards.

[0107] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0108] The processor may be a general-purpose processor that can call a CFD-based vehicle connector wading virtual verification program stored in a memory and execute the CFD-based vehicle connector wading virtual verification method provided in the embodiments of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the CFD-based vehicle connector wading virtual verification program is called can refer to the various embodiments of the CFD-based vehicle connector wading virtual verification method of the present application, and will not be repeated here.

[0109] Those skilled in the art will understand that Figure 3 The hardware structure shown in the figure does not constitute a limitation to the present application and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

[0110] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit the "first", "second" and "third" to different types.

[0111] In the description of the embodiments of this application, the words "exemplary," "for example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "for example," or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "for example," or "for example" is intended to present the relevant concepts in a concrete manner.

[0112] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0113] In some processes described in the embodiments of the present application, multiple operations or steps are included that appear in a specific order. However, it should be understood that these operations or steps may not be performed in the order in which they appear in the embodiments of the present application or may be performed in parallel. The sequence numbers of the operations are only used to distinguish between different operations, and the sequence numbers themselves do not represent any order of execution. In addition, these processes may include more or fewer operations, and these operations or steps may be performed in sequence or in parallel, and these operations or steps may be combined.

[0114] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device to execute the methods described in each embodiment of the present application.

[0115] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A CFD-based water-jet virtual verification method for vehicle connectors, characterized in that: The CFD-based water wading virtual verification method for vehicle connectors includes: Establish a water-resistant simulation model for vehicle connectors based on the entire vehicle and set simulation boundary conditions; Based on the vehicle-use connector wading simulation model based on the whole vehicle, simulation calculation is performed to obtain simulation data; A fluid-solid coupling simulation calculation is performed based on the simulation data to obtain simulation results, thereby realizing water wading performance verification of the vehicle connector.

2. A CFD-based water-resistant virtual verification method for vehicle connectors according to claim 1, characterized in that: The establishment of a vehicle-use connector wading simulation model based on a whole vehicle specifically includes: Use multiphase flow model to mesh the vehicle data model; Construct the wading pool simulation calculation domain and set boundary conditions; An electrical equipment layout model is established, and a water-resistant simulation model of the vehicle connector is constructed.

3. A CFD-based water-resistant virtual verification method for vehicle connectors as claimed in claim 2, characterized in that: The electrical equipment layout model includes the geometric structure and positional relationship of the electrical interfaces.

4. A CFD-based water-resistant virtual verification method for vehicle connectors as claimed in claim 2, characterized in that: The simulation boundary condition setting specifically includes: Set the boundary conditions of the vehicle grid according to the speed signal of the water wading test; Set the material properties for the water and air domains.

5. The CFD-based water-resistant virtual verification method for vehicle connectors according to claim 1, characterized in that: The simulation data is obtained by performing simulation calculation based on the vehicle connector wading simulation model based on the whole vehicle, specifically including: A multiphase flow model is used to simulate the interaction between water and air, and vehicle motion is simulated based on dynamic mesh technology; The instantaneous pressure distribution at the vehicle connector is calculated to obtain simulation data, where the simulation data is pressure data.

6. A CFD-based water-crossing virtual verification method for vehicle connectors according to claim 5, characterized in that: The performing of fluid-solid coupling simulation calculation according to the simulation data to obtain simulation results specifically includes: Based on the obtained simulation data, fluid-solid coupling simulation is performed; Acquire the displacement and deformation simulation data of the vehicle connector and obtain the simulation results.

7. A CFD-based water-crossing virtual verification method for vehicle connectors according to claim 6, characterized in that: After obtaining the simulation results, it also includes: Based on the obtained simulation results, determine whether the vehicle connector wading simulation meets the preset stop conditions: If yes, the simulation results are output; If not, a water-resistant simulation model of the vehicle connector based on the entire vehicle is established again, and the simulation boundary conditions are set, and the cycle continues.

8. The CFD-based water-crossing virtual verification method for a vehicle connector according to claim 7, characterized in that: The output of simulation results specifically includes: Collect the displacement and deformation simulation data of the vehicle connector and obtain the virtual test results; The virtual test results are analyzed to determine whether there is displacement and deformation of the automotive connector, and whether the displacement and deformation will cause water leakage, thereby generating a connector water wading performance evaluation report.

9. A CFD-based water-proof virtual verification device for vehicle connectors, characterized in that: The CFD-based vehicle connector wading virtual verification device includes: Create a module for establishing a water-resistant simulation model for vehicle connectors based on the entire vehicle and setting simulation boundary conditions; A simulation module, which is used to perform simulation calculations based on the vehicle-use connector wading simulation model based on the entire vehicle to obtain simulation data; An execution module is used to perform fluid-solid coupling simulation calculation based on the simulation data, obtain simulation results, and realize water wading performance verification of the vehicle connector.

10. A CFD-based water-proof virtual verification device for vehicle connectors, characterized in that: The CFD-based vehicle connector water wading virtual verification device includes a processor, a memory, and a CFD-based vehicle connector water wading virtual verification program stored on the memory and executable by the processor, wherein when the CFD-based vehicle connector water wading virtual verification program is executed by the processor, the steps of the CFD-based vehicle connector water wading virtual verification method as described in any one of claims 1 to 8 are implemented.

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