Processing method and generating method of finite element model of whole vehicle and related equipment

Abstract

The invention discloses a whole vehicle finite element model processing method, the whole vehicle finite element model comprises a first subsystem and a second subsystem, and the method comprises the following steps: obtaining a first reference point set of the first subsystem; acquiring a second reference point set of the second subsystem; generating a preset connection unit of the first subsystem and the second subsystem based on the first reference point set and the second reference point set; generating a connection point set of the first subsystem based on the preset connection unit; and matching the first reference point set with the connection point set to realize connection between the first subsystem and the second subsystem. The invention further discloses a generation method and related equipment. The modeling efficiency of the finite element model of the whole vehicle is improved.

Description

Technical Field

[0001] The disclosed embodiments of the present application relate to the field of vehicle simulation technology, and more specifically, to a processing method, a generating method and related equipment for a whole vehicle finite element model. Background Art

[0002] As an indispensable means in vehicle R&D, finite element simulation plays a vital role in shortening the R&D cycle. How to improve the efficiency of vehicle finite element modeling has also become a focus of in-depth research by major automakers. At present, in the process of vehicle collision finite element modeling, the connection between subsystems mainly relies on engineers to manually rigidify the grids around the connection points of each subsystem, and number and name them according to certain rules. It is necessary to ensure that the connection point position numbers correspond one to one. This process is cumbersome and complicated, which greatly affects the efficiency of vehicle simulation analysis. Summary of the invention

[0003] According to the embodiments of the present application, the present application proposes a processing method, a generation method and related equipment for a whole vehicle finite element model to solve the above-mentioned problems.

[0004] The first aspect of the present application discloses a method for processing a whole vehicle finite element model, wherein the whole vehicle finite element model includes a first subsystem and a second subsystem, and the method includes: obtaining a first reference point set of the first subsystem; obtaining a second reference point set of the second subsystem; generating a preset connection unit for the first subsystem and the second subsystem based on the first reference point set and the second reference point set; generating a connection point set for the first subsystem based on the preset connection unit; and matching the first reference point set with the connection point set to achieve connection between the first subsystem and the second subsystem.

[0005] In some embodiments, generating a preset connection unit for the first subsystem and the second subsystem based on the first reference point set and the second reference point set includes: selecting a target second reference point from the second reference point set based on the first reference point in the first reference point set, and the target second reference point is used to connect the first subsystem; establishing the preset connection unit based on the first reference point and the target second reference point, wherein the preset connection unit includes a connection node, and the connection node corresponds to the first reference point in the first reference point set.

[0006] In some embodiments, generating a connection point set of the first subsystem based on the preset connection unit includes: generating a connection box based on the connection node; using the connection node located in the connection box as the connection point of the first subsystem to generate the connection point set, wherein the connection points in the connection point set include preset connection information of the connection box.

[0007] In some embodiments, generating a connection box based on the connection node includes: establishing a connection box of a preset size with the connection node as the center.

[0008] The second aspect of the present application discloses a method for generating a finite element model of a whole vehicle, wherein the finite element model of the whole vehicle includes at least two subsystems, and the method includes: obtaining preset connection information of each subsystem of the at least two subsystems; based on the preset connection information, connecting the at least two subsystems to obtain the finite element model of the whole vehicle; wherein the connection of the at least two subsystems is achieved by the processing method of the finite element model of the whole vehicle described in the first aspect.

[0009] In some embodiments, a reference point set of the subsystem is obtained; and a target node is obtained using the reference points in the reference point set of the subsystem to generate a node set of the subsystem, wherein the nodes in the node set include node connection information, and the node connection information is used to achieve self-connection of each subsystem in the at least two subsystems.

[0010] In some embodiments, the reference points include shell type points and entity type points; the target nodes include at least one of the following: nodes on the holes in the shell type points; nodes adjacent to the holes in the shell type points; nodes inside the tubes in the entity type points.

[0011] In some embodiments, whether the connection between the at least two subsystems is successful is determined based on the connection box information of the at least two subsystems.

[0012] The third aspect of the present application discloses an electronic device, comprising a memory and a processor coupled to each other, wherein the processor is used to execute program instructions stored in the memory to implement the method for generating a finite element model of the whole vehicle described in the first aspect, or to implement the method for processing the finite element model of the whole vehicle described in the second aspect.

[0013] The fourth aspect of the present application discloses a non-volatile computer-readable storage medium having program instructions stored thereon. When the program instructions are executed by a processor, the method for generating a finite element model of the whole vehicle described in the first aspect is implemented, or the method for processing the finite element model of the whole vehicle described in the second aspect is implemented.

[0014] The beneficial effects of the present application are: obtaining a first reference point set of a first subsystem and a second reference point set of a second subsystem, using the first reference point set and the second reference point set to generate a preset connection unit for the first subsystem and the second subsystem, generating a connection point set for the first subsystem based on the preset connection unit, and then matching the first reference point set with the connection point set to achieve connection between the first subsystem and the second subsystem, thereby improving the modeling efficiency and accuracy of the finite element model of the whole vehicle, that is, in the process of finite element modeling, there is no need to manually check the connections of the subsystems one by one, thereby improving the efficiency of the whole vehicle simulation analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application will be further described below in conjunction with the accompanying drawings and implementation methods, in which:

[0016] Figure 1 is a flow chart of a method for processing a whole vehicle finite element model according to an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of a preset connection unit in an embodiment of the present application;

[0018] Figure 3 is a schematic diagram of the effect of the whole vehicle finite element model processing of the embodiment of the present application;

[0019] Figure 4 is a flow chart of a method for generating a finite element model of a whole vehicle according to an embodiment of the present application;

[0020] Figure 5 is a schematic diagram of a target node in an embodiment of the present application;

[0021] Figure 6 is a flow chart of a method for generating a finite element model of a whole vehicle according to another embodiment of the present application;

[0022] Figure 7 is a schematic diagram of the structure of an electronic device according to an embodiment of the present application;

[0023] Figure 8 It is a schematic diagram of the structure of the non-volatile computer-readable storage medium of an embodiment of the present application. DETAILED DESCRIPTION

[0024] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there may be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship. In addition, "many" in this article means two or more than two. In addition, the term "at least one" in this article means any combination of at least two of any one or more of a variety, for example, including at least one of A, B, and C, which can represent any one or more elements selected from the set consisting of A, B, and C. In addition, the terms "first", "second", and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figure 1 , Figure 1 It is a flow chart of a method for processing a whole vehicle finite element model according to an embodiment of the present application.

[0027] The whole vehicle finite element model is a model established when using the finite element analysis method. It is a group of unit combinations that are connected only at nodes, transmit forces only at nodes, and are constrained only at nodes. It can be used to analyze the dynamic performance, static and dynamic characteristics, and structural optimization of the vehicle. The whole vehicle finite element model includes vehicle subsystems such as the body in white, doors, hoods, and subframes. In the embodiment of the present application, the whole vehicle finite element model includes a first subsystem and a second subsystem, wherein the first subsystem and the second subsystem can be any two subsystems to be connected in the vehicle subsystems such as the body in white, doors, hoods, and subframes.

[0028] The method can be performed by an electronic device with computing functions, such as a microcomputer, a server, and a mobile device such as a laptop computer or a tablet computer. It should be noted that if the results are substantially the same, the method of the present application is not limited to the above. Figure 1 The process sequence shown is limited.

[0029] In some possible implementations, the method may be implemented by a processor calling computer-readable instructions stored in a memory, such as Figure 1 As shown, the method may include the following steps:

[0030] S11: Acquire a first reference point set of the first subsystem.

[0031] Obtain a first reference point set for the first subsystem, for example, obtain the coordinate information of the connection points in the first subsystem used to connect with other subsystems, establish node points for connection through the coordinate information, and the node points constitute the first reference point set of the first subsystem; or, establish node points for connection through the coordinate information, and convert the obtained node points into A-point type points, thereby obtaining the first reference point set of the first subsystem, wherein the A-point type points include information such as the connection relationship and connection form of the node points.

[0032] For example, the first subsystem may be a door subsystem, and the first reference point set of the first subsystem includes at least one first reference point (Connect_point) in the door subsystem for connecting with other subsystems. For example, the first reference point set SET_NODE 1 includes {CP1, CP2, CP3...CPn}.

[0033] S12: Acquire a second reference point set of the second subsystem.

[0034] Obtain a second reference point set for the second subsystem. For example, obtain the coordinate information of the connection points in the second subsystem used to connect with other subsystems, establish nodes (node ​​points) for connection through the coordinate information, and the node points constitute the second reference point set of the second subsystem; or, establish node points for connection through the coordinate information, convert the obtained node points into A-point points to obtain the second reference point set of the second subsystem.

[0035] For example, the second subsystem may be a body-in-white subsystem, and the second reference point set of the second subsystem includes at least one second reference point (Connect_point) in the body-in-white subsystem for connecting with other subsystems. For example, the second reference point set SET_NODE 2 includes {CP1', CP2', CP3'...CPn'}.

[0036] S13: Based on the first reference point set and the second reference point set, generate a preset connection unit for the first subsystem and the second subsystem.

[0037] Based on the first reference point set of the first subsystem and the second reference point set of the second subsystem, a preset connection unit is generated, and the preset connection unit is used to connect the first subsystem and the second subsystem. For example, the preset connection unit can be a beam unit, wherein the beam unit can be used to simulate bolt connections between systems, etc.

[0038] S14: Generate a connection point set of the first subsystem based on the preset connection unit.

[0039] A connection point set of the first subsystem is generated based on a preset connection unit. For example, the connection nodes (node ​​points) on the preset connection unit are processed to obtain connection box (BOX) type data of the connection nodes on the preset connection unit, and the connection nodes located in the BOX are used as connection points of the first subsystem, thereby generating a connection point set of the first subsystem, for example, the connection point set SET_NODE 3 includes {N1, N2, N3...Nn}.

[0040] S15: Matching the first reference point set with the connection point set to achieve connection between the first subsystem and the second subsystem.

[0041] The first reference point set is used to match the connection point set. For example, if the first reference point CP1 in the first reference point set is successfully matched with the connection point N1 in the connection point set (for example, the first reference point CP1 coincides with the connection point N1), the first reference point CP1 has a connection attribute consistent with the connection point N1, and then the first reference point CP1 on the first subsystem can be connected to the second subsystem. The first reference point set and the connection point set are identified and matched in turn, so that the connection between the first subsystem and the second subsystem can be achieved, wherein the preset connection information includes the *CONSTRAINED_NODAL_RIGID_BODY connection information in the finite element software, etc.

[0042] In this embodiment, a first reference point set of the first subsystem and a second reference point set of the second subsystem are obtained, preset connection units of the first subsystem and the second subsystem are generated based on the first reference point set and the second reference point set, and a connection point set of the first subsystem is generated based on the preset connection units. Then, the preset connection units and the connection point sets are used to connect the subsystems, thereby improving the modeling efficiency and accuracy of the finite element model of the whole vehicle. That is, in the process of finite element modeling, there is no need to manually check the connections of the subsystems one by one, thereby improving the efficiency of the simulation analysis of the whole vehicle.

[0043] In some embodiments, based on the first reference point set and the second reference point set, a preset connection unit for the first subsystem and the second subsystem is generated, including: based on the first reference point in the first reference point set, selecting a target second reference point from the second reference point set, the target second reference point is used to connect the first subsystem; based on the first reference point and the target second reference point, establishing a preset connection unit, wherein the preset connection unit includes a connection node, and the connection node corresponds to the first reference point in the first reference point set.

[0044] Based on the first reference point in the first reference point set, a target second reference point is selected from the second reference point set, and the target second reference point is used to connect the first subsystem. For example, a connection node is generated based on the first reference point, and the second reference point used to connect with the first subsystem is selected in the second reference point set in turn according to the connection node. Further, a preset connection unit is established based on the first reference point and the target second reference point, for example, a beam unit for connecting the first subsystem and the second subsystem is established using the connection node corresponding to the first reference point and the target second reference point, wherein the beam unit can be used to simulate bolt connections between systems, etc.

[0045] It can be understood that in the relevant application, taking the processing of the second subsystem as an example, the position information of the first reference point is obtained by importing the first reference point set of the first subsystem, and then the connection node (node ​​point) is mapped and generated at the corresponding position in the second subsystem. At this time, the preset connection unit can be generated by the connection node corresponding to the first reference point and the corresponding second reference point, such as Figure 2 As shown, Figure 2 It is a schematic diagram of a preset connection unit of an embodiment of the present application, and a corresponding beam unit is generated by selecting a connection node n1 mapped by the first reference point CP1 in the second subsystem and a second reference point CP1' in the second subsystem for connecting with the first reference point CP1.

[0046] Further, in some embodiments, based on the preset connection unit, a connection point set of the first subsystem is generated, including: generating a connection box based on the connection node; using the connection node located in the connection box as the connection point of the first subsystem to generate a connection point set, wherein the connection point in the connection point set includes preset connection information of the connection box.

[0047] A connection box (BOX) is generated based on the connection nodes mapped by the first reference point on the preset connection unit. The connection nodes located in the connection box are used as the connection points of the first subsystem to generate a connection point set of the first subsystem, wherein the connection points in the connection point set include the preset connection information of the connection box, for example, a connection point set SET_NODE 3 is constructed based on the connection nodes falling into the BOX, and a *CONSTRAINED_NODAL_RIGID_BODY connection about the BOX is created based on the connection point set SET_NODE 3, so that the connection points in the connection point set SET_NODE 3 include the connection information of the BOX, wherein the preset connection information of the connection box is the *CONSTRAINED_NODAL_RIGID_BODY connection information of the connection box relative to other systems, and the *CONSTRAINED_NODAL_RIGID_BODY connection information between the connection nodes falling into the same BOX. The connection points in the connection point set can be understood as connection nodes with connection information of the connection box.

[0048] For example, in the second subsystem, the first reference point set of the first subsystem is imported, and the connection node n1 is generated by mapping the first reference point CP1 of the first subsystem, and then the beam unit of the connection node n1 and the second reference point CP1' is established. At the same time, BOX1 is generated based on the connection node n1, and the *CONSTRAINED_NODAL_RIGID_BODY connection about BOX 1 is automatically created for the connection node n1, that is, the connection point N1 is obtained.

[0049] When establishing the connection between the first subsystem and the second subsystem, the first reference point set S1 of the first subsystem, the second reference point set S2 of the second subsystem, and the connection point set S3 of the first subsystem are respectively imported, wherein S1 includes the first reference point CP1, S2 includes the second reference point CP1', and S3 includes the connection point N1. Figure 3 As shown, Figure 3 It is a schematic diagram of the effect of processing the finite element model of the whole vehicle in an embodiment of the present application. Since the first reference point CP1 falls on BOX 1 (in some cases, the first reference point CP1 coincides with the connection point N1), the connection point set S3 created based on BOX 1 will be automatically updated, that is, the first reference point CP1 will also be added to S3, and then the related *CONSTRAINED_NODAL_RIGID_BODY connection will be automatically updated, so that CP1 also has the same BOX 1 connection information as N1. Therefore, the first reference point CP1 has the same connection attributes as the connection point N1. Further, the first reference point CP1 can be connected to the second reference point CP1'.

[0050] In this embodiment, a connection box is generated by utilizing the connection nodes on a preset connection unit, and the connection nodes located in the connection box are used as connection points of the first subsystem to generate a connection point set for the first subsystem, wherein the connection points in the connection point set include preset connection information of the connection box, so that the connection nodes falling into the connection box are automatically connected, thereby improving the modeling efficiency and accuracy of the finite element model of the entire vehicle.

[0051] In some embodiments, the connection box is connected based on the connection node, including establishing a connection box of a preset size with the connection node as the center. For example, a 1mm×1mm×1mm BOX is established with the connection node n1 as the center, and a *CONSTRA INED_NODAL_RIGID_BODY connection about BOX is created for the connection node n1. It can be understood that the connection point set is defined by the BOX type data, so that the connection nodes that fall into the BOX later have corresponding connection attributes.

[0052] See also Figure 4 , Figure 4 The flowchart of the method for generating the whole vehicle finite element model of the embodiment of the present application is shown in FIG. 1 . The method can be applied to electronic devices with computing functions. The whole vehicle finite element model includes at least two subsystems. For example, the whole vehicle finite element model includes vehicle subsystems such as the body in white, doors, hood, and subframe. It should be noted that if there are substantially the same results, the method of the present application is not based on Figure 4 The process sequence shown is limited.

[0053] In some possible implementations, the method may be implemented by a processor calling computer-readable instructions stored in a memory, such as Figure 4 As shown, the method may include the following steps:

[0054] S41: Acquire preset connection information of each subsystem in at least two subsystems.

[0055] The preset connection information of the subsystem includes at least the reference point set information, connection point set information, corresponding *CONSTRAINED_NODAL_RIGID_BODY connection information, etc. of the subsystem.

[0056] S42: Based on the preset connection information, at least two subsystems are connected to obtain a finite element model of the entire vehicle.

[0057] For example, the preset connection information of all subsystems of the whole vehicle finite element model is obtained to connect all subsystems, thereby completing the construction of the whole vehicle finite element model, wherein the connection of each subsystem in all subsystems is achieved through the above-mentioned processing method of the whole vehicle finite element model, which will not be repeated here.

[0058] Further, in some embodiments, a reference point set of a subsystem is obtained; and a target node is obtained using the reference points in the reference point set of the subsystem to generate a node set of the subsystem, wherein the nodes in the node set include node connection information, and the node connection information is used to achieve self-connection of each subsystem in at least two subsystems.

[0059] Obtain the reference point set of the subsystem, for example, obtain the coordinate information of the connection points in the subsystem used to connect with other subsystems, establish the node points used for connection through the coordinate information, and convert the obtained node points into A-point type points, thereby obtaining the reference point set of the subsystem, wherein the A-point type points include the connection relationship of the node points, the connection form and other information.

[0060] The reference points in the reference point set of the subsystem are used to obtain the target node to generate the node set of the subsystem. For example, in the subsystem, the target node is selected by using the reference point identification, that is, the nodes that meet the conditions around the reference point are used as the target node, and a *CONSTRAINED_NODAL_RIGID_BODY connection is created for the obtained target node of the subsystem, thereby generating the node set of the subsystem. The nodes in the node set include node connection information, for example, the nodes include their corresponding *CONSTRAINED_NODAL_RIGID_BODY connection information, and the node connection information is used to realize the self-connection of each subsystem in at least two subsystems.

[0061] In some embodiments, the reference points include shell type points and entity type points; wherein the target node includes at least one of the following: a node on a hole in the shell type point; a node adjacent to the hole in the shell type point; a node inside a pipe in the entity type point.

[0062] The subsystem's reference points include at least shell (SHELL) type points and solid (SOLID) type points. For example, in the corresponding subsystem, nodes that meet the conditions around the reference point are used as target nodes, and the target nodes include at least one of the nodes on the hole in the shell type point, the nodes adjacent to the hole in the shell type point, and the nodes in the tube in the solid type point. For example, for a shell type unit (shell type point), if a hole (Hole) is identified at a certain distance around the reference point, the node on the hole is used as the target node, and the hole can be a hole on a component such as a hinge; for a shell type unit, if a washer is identified, the node on the hole corresponding to the washer is used as the target node; for a solid type unit (solid type point), if a tube (Tube) is identified at a certain distance around the reference point, the node in the tube is used as the target node.

[0063] For example, for a shell type unit, if a hole is identified at a certain distance around the reference point, the node on the hole is used as the target node, such as Figure 5 As shown, Figure 5 is a schematic diagram of the target node of the embodiment of the present application, identifying a hole H1 at a certain distance around the reference point CP, and then determining multiple nodes n' in the hole H1 as target nodes, and creating a *CONSTRAINED_NODAL_RIGID_BODY connection for the identified target node (such as Figure 5 The node set of the subsystem is obtained, and the reference points in the subsystem are processed in sequence to realize the self-connection of the subsystem. The self-connection can be understood as the rigid connection of the components in the subsystem.

[0064] Furthermore, in some embodiments, it is determined whether the connection between the at least two subsystems is successful based on the connection box information of the at least two subsystems.

[0065] For example, after completing the connection of all subsystems of the vehicle finite element model, the connection box information of all subsystems is obtained, such as determining the number of nodes in the connection box to determine whether the connection between at least two subsystems is successful.

[0066] The connection box information includes the number of BOXes used for connection in the vehicle finite element model, the number of BOXes with 0 nodes, the number of BOXes with 1 nodes, the number of BOXes with 2 nodes, the number of BOXes with more than 2 nodes, etc. Among them, you can check how many connection nodes fall into the BOX to determine whether the connection is successful. For example, if there are two points in the BOX, it is the correct state; if there is only one point or no point, an error is reported during calculation and it needs to be checked and modified; if there are more than two points, there may be multiple connections to the surrounding parts. The check function can be used to quickly locate the error type and make corrections.

[0067] Among them, if the number of connection nodes in the BOX is 2, it can be judged that the connection box is normal and the subsystem is connected successfully. Taking the connection between the first subsystem and the second subsystem as an example, the first reference point set of the first subsystem and the second reference point set of the second subsystem are obtained, as well as the connection point set about the first subsystem generated in the second subsystem, wherein a beam unit is established between the connection point in the connection point set of the first subsystem and the second reference point in the second reference point set, and the connection point includes the preset connection information of the corresponding connection box. When connecting the first subsystem to the second subsystem, only the first reference point of the first subsystem will fall in the same connection box with the corresponding connection point, and then the first reference point is successfully connected to the corresponding second reference point.

[0068] For ease of understanding, the connection between the first subsystem and the second subsystem in the embodiment of the present application is illustrated by way of example. Figure 6 As shown, Figure 6 It is a flow chart of a method for generating a whole vehicle finite element model according to another embodiment of the present application.

[0069] S61: Acquire a first reference point set and a first node set of a first subsystem.

[0070] In the first system, a first reference point set and a first node set are obtained by processing the first subsystem, wherein the first node set is obtained by searching based on the first reference point set and is used for self-connection of the first subsystem.

[0071] S62: Acquire a second reference point set and a second node set of the second subsystem, and a connection point set of the first subsystem.

[0072] In the second system, the second subsystem is processed to obtain a second reference point set and a second node set, wherein the second node set is obtained based on the search of the second reference point set and is used to perform self-connection of the second subsystem. Further, the first reference point set of the first subsystem is obtained, and the first reference point set and the second reference point set are used to generate a preset connection unit of the first subsystem and the second subsystem, thereby generating a connection point set of the first subsystem.

[0073] S63: Establish a connection between the first subsystem and the second subsystem.

[0074] The first node set is used for self-connection of the first subsystem, and the second node set is used for self-connection of the second subsystem. The first reference point set is matched with the connection point set so that the reference points in the first reference point set have the connection properties of the connection points in the connection point set, thereby realizing the connection between the first subsystem and the second subsystem.

[0075] It should be noted that the operation steps in this application such as identifying / selecting connection nodes, creating *CONST RAINED_NODAL_RIGID_BODY connections, generating preset connection units for the first subsystem and the second subsystem can be implemented in relevant hardware / software by compiling scripts in a programming language (for example, Python, etc.).

[0076] Those skilled in the art will appreciate that, in the above method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0077] See also Figure 7 , Figure 7: is a schematic diagram of the structure of an electronic device of an embodiment of the present application. The electronic device 70 includes a memory 71 and a processor 72 coupled to each other, and the processor 72 is used to execute program instructions stored in the memory 71 to implement the steps of the above-mentioned embodiment of the processing method of the whole vehicle finite element model, or to implement the steps of the above-mentioned embodiment of the method for generating the whole vehicle finite element model. In a specific implementation scenario, the electronic device 70 may include but is not limited to: a microcomputer, a server, which is not limited here.

[0078] Specifically, the processor 72 is used to control itself and the memory 71 to implement the steps of the above-mentioned processing method embodiment of the whole vehicle finite element model, or to implement the steps of the above-mentioned generation method embodiment of the whole vehicle finite element model. The processor 72 can also be called a CPU (Central Processing Unit), and the processor 72 may be an integrated circuit chip with signal processing capabilities. The processor 72 can also be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. In addition, the processor 72 can be implemented by an integrated circuit chip.

[0079] See also Figure 8 , Figure 8 Schematic diagram of the structure of a non-volatile computer-readable storage medium according to an embodiment of the present application. The non-volatile computer-readable storage medium 80 is used to store a computer program 801. When the computer program 801 is executed by a processor, for example, Figure 7 When the processor 72 in the embodiment is executed, it is used to implement the steps of the above-mentioned embodiment of the processing method for the whole vehicle finite element model, or to implement the steps of the above-mentioned embodiment of the method for generating the whole vehicle finite element model.

[0080] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0081] In the several embodiments provided in the present application, it should be understood that the disclosed methods and related devices can be implemented in other ways. For example, the above-described related device implementations are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication disconnection shown or discussed can be through some interfaces, indirect coupling or communication disconnection of devices or units, which can be electrical, mechanical or other forms.

[0082] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0083] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of each implementation method of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk.

[0084] It is easy for a person skilled in the art to know that many modifications and changes can be made to the device and method while maintaining the teaching content of the present application. Therefore, the above disclosure should be considered as limited only by the scope of the appended claims.

Claims

1. A method for processing a vehicle finite element model, characterized in that: The whole vehicle finite element model includes a first subsystem and a second subsystem, and the method includes: Acquire a first reference point set of the first subsystem; Acquire a second reference point set of the second subsystem; Based on the first reference point set and the second reference point set, generating a preset connection unit between the first subsystem and the second subsystem; Based on the preset connection unit, generating a connection point set of the first subsystem; The first reference point set is matched with the connection point set to achieve connection between the first subsystem and the second subsystem.

2. The method according to claim 1, characterized in that The generating a preset connection unit between the first subsystem and the second subsystem based on the first reference point set and the second reference point set includes: Based on a first reference point in the first reference point set, selecting a target second reference point from the second reference point set, wherein the target second reference point is used to connect the first subsystem; The preset connection unit is established based on the first reference point and the target second reference point, wherein the preset connection unit includes a connection node, and the connection node corresponds to the first reference point in the first reference point set.

3. The method according to claim 2, characterized in that The step of generating a connection point set of the first subsystem based on the preset connection unit includes: generating a connection box based on the connection node; The connection nodes located in the connection box are used as the connection points of the first subsystem to generate the connection point set, wherein the connection points in the connection point set include the preset connection information of the connection box.

4. The method according to claim 3, characterized in that The generating a connection box based on the connection node comprises: A connection box of a preset size is established with the connection node as the center.

5. A method for generating a finite element model of a whole vehicle, characterized in that: The whole vehicle finite element model includes at least two subsystems, and the method includes: Acquire preset connection information of each subsystem of the at least two subsystems; Based on the preset connection information, the at least two subsystems are connected to obtain the whole vehicle finite element model; Wherein, the connection of the at least two subsystems is achieved by the processing method of the whole vehicle finite element model according to any one of claims 1 to 5.

6. The method according to claim 5, characterized in that Also includes: Acquire a reference point set of the subsystem; The target node is acquired by using the reference points in the reference point set of the subsystem to generate the node set of the subsystem, wherein the nodes in the node set include node connection information, and the node connection information is used to realize the self-connection of each subsystem in the at least two subsystems.

7. The method according to claim 6, characterized in that The reference points include shell type points and entity type points; The target node includes at least one of the following: Nodes on holes in shell type points; Nodes adjacent to the hole in the shell type point; Nodes within a tube of entity type point.

8. The method according to claim 5, characterized in that Further including: Whether the connection between the at least two subsystems is successful is determined according to the connection box information of the at least two subsystems.

9. An electronic device, characterized in that: It comprises a memory and a processor coupled to each other, wherein the processor is used to execute program instructions stored in the memory to implement the method for processing the finite element model of the whole vehicle as described in any one of claims 1 to 4, or to implement the method for generating the finite element model of the whole vehicle as described in any one of claims 5 to 8.

10. A non-volatile computer-readable storage medium having program instructions stored thereon, characterized in that: When the program instructions are executed by the processor, the processing method of the whole vehicle finite element model described in any one of claims 1 to 4 is implemented, or the generation method of the whole vehicle finite element model described in any one of claims 5 to 8 is implemented.

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