Structural optimization method and device for interior and exterior components of vehicle, vehicle and electronic equipment

Abstract

The invention discloses a structure optimization method and device for internal and external decoration components of a vehicle, the vehicle and electronic equipment, and relates to the technical field of structure simulation analysis. The method aims at solving the stability problem of interior and exterior components in an extreme temperature environment, and comprises the steps that modeling is conducted on the interior and exterior components based on assembly data of the interior and exterior components of a vehicle, an interior and exterior component model is obtained, and the assembly data is used for representing the structures of the interior and exterior components. Based on the interior and exterior decoration component model, deformation of the interior and exterior decoration components at the target temperature is simulated, and the target temperature is the temperature outside the preset temperature range. And optimizing the structure of the interior and exterior components based on deformation. According to the method, through the simulation model of the interior and exterior components, deformation of the interior and exterior components under the target temperature condition can be simulated, and then the interior and exterior components are structurally optimized according to the deformation.

Description

Technical Field

[0001] The present invention relates to the technical field of structural simulation analysis, and particularly to a method and device for optimizing the structure of vehicle interior and exterior trim components, a vehicle, and an electronic device. Background Art

[0002] With the rapid development of the automotive industry, consumers' requirements for the quality and visual experience of vehicles are increasing day by day, and the structural reliability and regularity of vehicle interior and exterior trim components have become key considerations.

[0003] In the related art, the optimization of the structure of automotive interior and exterior trim components mainly considers the mechanical properties of the interior and exterior trim components, that is, the performance such as strength, stiffness, and stability when the components are subjected to external forces. However, in addition to the mechanical properties, the structure of the interior and exterior trim components will also change under extreme temperature conditions, resulting in problems with the spatial matching between the interior and exterior trim components.

[0004] Therefore, how to improve the structural stability of interior and exterior trim components under extreme temperature conditions has become an urgent problem to be solved currently. Summary of the Invention

[0005] In view of this, the present invention provides a method and device for optimizing the structure of vehicle interior and exterior trim components, a vehicle, and an electronic device, which can improve the structural stability of interior and exterior trim components in an extreme temperature environment.

[0006] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0007] In a first aspect, the present application provides a method for optimizing the structure of vehicle interior and exterior trim components, the method comprising:

[0008] Based on the assembly data of the interior and exterior trim components of a vehicle, a model of the interior and exterior trim components is built to obtain an interior and exterior trim component model, wherein the assembly data is used to characterize the structure of the interior and exterior trim components. Based on the interior and exterior trim component model, the deformation of the interior and exterior trim components at a target temperature is simulated, wherein the target temperature is a temperature outside a preset temperature range. The structure of the interior and exterior trim components is optimized based on the deformation.

[0009] According to the above technical solution, by building a model of the interior and exterior trim components and simulating their deformation behavior at a temperature outside the preset range (i.e., extreme temperatures such as high temperature and low temperature), it is possible to predict and quantify in advance the structural deformation caused by high temperature or low temperature environments. Moreover, based on the deformation of the interior and exterior trim components, the structure (assembly data) of the interior and exterior trim components is optimized, which can improve the structural stability of the interior and exterior trim components. Moreover, through simulation analysis, this method can also reduce the number of mold repairs during the later production of interior and exterior trim components and save production costs.

[0010] Further, the assembly data further includes design information, and the design information includes the allowable offset values of each mounting point in the six-degree-of-freedom directions in the interior and exterior trim components. Based on the interior and exterior trim component models, simulate the deformation of the interior and exterior trim components at the target temperature, including: correcting the design information. Based on the interior and exterior trim component models and the corrected design information, simulate the deformation of the interior and exterior trim components at the target temperature.

[0011] According to the above technical solution, through simulating the corrected design information and the interior and exterior trim components, the corrected design information can be comprehensively verified, realizing the interior and exterior trim component structure optimization logic of "verification - correction - verification".

[0012] Further, correcting the design information includes: correcting the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction. Among them, the first mounting point includes the secondary positioning mounting point and / or the regular mounting point among each mounting point. The first degree-of-freedom direction corresponding to the secondary positioning mounting point is the direction in which the secondary positioning mounting point is affected by temperature in the six-degree-of-freedom directions. The first degree-of-freedom direction corresponding to the regular mounting point is the direction other than the mounting direction of the regular mounting point in the six-degree-of-freedom directions.

[0013] According to the above technical solution, by differentially correcting the allowable offset values of other degree-of-freedom directions of the interior and exterior trim components outside the six-degree-of-freedom directions of the main positioning mounting point, the degree-of-freedom directions of the secondary positioning mounting point that are not affected by temperature, and the degree-of-freedom directions corresponding to the non-mounting directions of the regular mounting points, the accuracy of correcting the allowable offset values can be improved.

[0014] Further, correcting the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction includes: based on the design information, determining a first constraint, where the first constraint is used to constrain the deformation of the second mounting point in the six-degree-of-freedom directions and the deformation of the first mounting point in the degree-of-freedom directions other than its corresponding first degree-of-freedom direction, and the second mounting point is a mounting point other than the first mounting point. Based on the first constraint, simulate the first deformation value of the first mounting point in its corresponding first degree-of-freedom direction at the target temperature. Based on the first deformation value, correct the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction.

[0015] According to the above technical solution, by simulating based on the first constraint, the analysis error caused by the coupling of multi-degree-of-freedom deformation values is reduced, and the accuracy of the first deformation value is improved. Moreover, based on the first deformation value, the allowable offset value of the first degree of freedom corresponding to the first mounting point can be corrected specifically.

[0016] Further, the allowable offset value of the first mounting point in its corresponding first degree of freedom direction includes: a first allowable offset value corresponding to the upper boundary value of the preset temperature range, and a second allowable offset value corresponding to the lower boundary value of the preset temperature range. Based on the first deformation value, correcting the allowable offset value of the first mounting point in its corresponding first degree of freedom direction includes: determining a target allowable offset value from the first allowable offset value and the second allowable offset value based on the target temperature. Correcting the target allowable offset value based on the first deformation value.

[0017] Further, determining a target allowable offset value from the first allowable offset value and the second allowable offset value based on the target temperature includes: in response to determining that the target temperature is greater than the upper boundary value, determining the target allowable offset value as the first allowable offset value. In response to determining that the target temperature is less than the lower boundary value, determining the target allowable offset value as the second allowable offset value.

[0018] According to the above technical solution, by distinguishing the first allowable offset value of the upper boundary of the preset range temperature and the second allowable offset value of the lower boundary, it is possible to determine whether the target temperature belongs to high temperature or low temperature, and quickly determine the target allowable offset value, improving the analysis efficiency.

[0019] Further, correcting the target allowable offset value based on the first deformation value includes: in response to determining that the absolute value of the target allowable offset value is greater than or equal to the absolute value of the first deformation value, correcting the target allowable offset value to the first deformation value.

[0020] According to the above technical solution, reasonably adjusting the target allowable offset value based on the first deformation value, reducing the inaccurate design amount (i.e., the allowable offset value), makes the design parameters of the interior and exterior trim components more adaptable to the actual working conditions.

[0021] Further, based on the interior and exterior trim component model and the corrected design information, simulating the deformation of the interior and exterior trim components at the target temperature includes: based on the corrected design information, determining a second constraint, where the second constraint is used to constrain the deformation of each mounting point in six degrees of freedom directions. Based on the second constraint, simulating the deformation of the interior and exterior trim components in the target area on the interior and exterior trim component model at the target temperature.

[0022] According to the above technical solution, through the second constraint with the corrected design information and the simulation based on the second constraint, it is possible to verify the interior and exterior trim components after correcting the design information, and obtain the deformation of the target area, and the single - overall analysis idea can be realized, improving the accuracy of the entire analysis process.

[0023] According to the above technical solution, the deformation of the target area can be used as the final optimization analysis data, and optimization can be carried out based on this deformation, which can further improve the depth of the structural optimization of the interior and exterior trim components on the basis of correcting the design information.

[0024] Further, based on the deformation optimization structure, it includes: optimizing the structure in response to the deformation causing the target area not to meet the structural requirements.

[0025] In a second aspect, the present application provides a structure optimization device for vehicle interior and exterior trim components, and the device includes each functional module for the method described in the first aspect above.

[0026] In a third aspect, the present application provides a vehicle, which includes interior and exterior trim components, and among them, the interior and exterior trim components are optimized by the structure optimization device for vehicle interior and exterior trim components described in the second aspect.

[0027] In a fourth aspect, the present application provides an electronic device, which includes: a processor and a memory. The memory stores instructions executable by the processor, and when the processor is configured to execute the instructions, the electronic device realizes the method described in the first aspect above.

[0028] The beneficial effects of the second to fourth aspects above can be referred to those described in the first aspect and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a flowchart of a method for optimizing the structure of vehicle interior and exterior trim components provided by an embodiment of the present application;

[0031] Figure 2 It is a distribution diagram of the installation points of a vehicle spoiler provided by an embodiment of the present application;

[0032] Figure 3 It is an implementation flowchart of a method for optimizing the structure of vehicle interior and exterior trim components provided by an embodiment of the present application;

[0033] Figure 4 It is a composition diagram of a structure optimization device for vehicle interior and exterior trim components provided by an embodiment of the present application;

[0034] Figure 5 A block diagram of an electronic device shown according to an exemplary embodiment DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0036] It should be noted that in the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, the use of words such as "exemplarily" or "for example" is intended to present relevant concepts in a specific manner.

[0037] In order to facilitate a clear description of the technical solutions in the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and roles. Those skilled in the art can understand that the terms such as "first" and "second" do not limit the quantity and execution order.

[0038] With the development of the automotive industry, consumers' quality requirements for vehicle interior and exterior components are constantly increasing. In high-temperature and low-temperature environments, the interior and exterior components of vehicles are prone to deformation due to thermal expansion and contraction. This deformation will directly affect the dimensional parameters such as the fit clearance and surface difference between the interior and exterior components and the mating parts, and further cause problems such as interference, extrusion between components, or excessive clearance and out-of-tolerance surface difference, thus affecting the use experience of the vehicle.

[0039] Therefore, how to improve the structural stability of interior and exterior components in extreme temperature environments is an urgent problem to be solved at present.

[0040] Based on this, the present application provides a method for optimizing the structure of vehicle interior and exterior components. This method models the vehicle interior and exterior components, and uses the modeling to simulate the deformation of the interior and exterior components under extreme temperature conditions, so as to optimize the structure of the interior and exterior components based on the deformation and improve the structural stability of the interior and exterior components in extreme temperature environments.

[0041] In some embodiments, the execution subject of the structural optimization method for vehicle interior and exterior trim components provided in the embodiments of the present application is a structural optimization device for vehicle interior and exterior trim components. The structural optimization device for vehicle interior and exterior trim components can be a computing device, or the structural optimization device for vehicle interior and exterior trim components can also be a processor (such as a central processing unit) in a computing device. Additionally, the computing device can also be a functional module or functional unit for executing the structural optimization method for vehicle interior and exterior trim components and the structural optimization method for vehicle interior and exterior trim components. The embodiments of the present application do not limit the specific form of the structural optimization device for vehicle interior and exterior trim components.

[0042] The following specifically introduces the structural optimization method for vehicle interior and exterior trim components provided in the embodiments of the present application with reference to the accompanying drawings.

[0043] The structural optimization method for vehicle interior and exterior trim components provided in the embodiments of the present application, as Figure 1 shown, specifically includes the following steps:

[0044] S101. Based on the assembly data of the interior and exterior trim components of the vehicle, model the interior and exterior trim components to obtain an interior and exterior trim component model.

[0045] Among them, the assembly data is used to characterize the structure of the interior and exterior trim components.

[0046] It should be noted that the interior and exterior trim components of the vehicle include the interior trim components and the exterior trim components of the vehicle. Among them, the interior trim components of the vehicle can include: instrument panel, center console, door panel interior, seat trim panel, roof interior, shift panel, etc. The exterior trim components of the vehicle can include: bumper, intake grille, door handle, rearview mirror housing, roof rack, wheel hub cover, body decorative strip, spoiler, etc. The embodiments of the present application do not limit the specific form of the interior and exterior trim components of the vehicle.

[0047] In some embodiments, the assembly data of the interior and exterior trim components includes at least the following items: installation structure data, reinforcement structure data, flanging structure data, wall thickness design, material data, and draft design data.

[0048] Specifically, the installation structure data details the positions of the connection points of each component, the connection methods (such as snap fasteners, bolts, welding, etc.), and the mating tolerances. The reinforcement structure data covers the structural design parameters of reinforcement ribs, bosses, etc. to enhance the rigidity of the components. The flanging structure data describes the shape, size, and angle of the flanging at the edges of the components. The wall thickness design data specifies the thickness distribution of different parts of the components. The material data includes the type of materials that make up the interior and exterior trim components, as well as physical characteristic parameters such as thermal conductivity, coefficient of thermal expansion, and elastic modulus. The draft design data clarifies the demolding direction and angle. These data are interrelated and completely outline the structural characteristics of the interior and exterior trim components, providing accurate basic information for modeling, simulation, and structural optimization. The specific information composition of the assembly data of the interior and exterior trim components in the application embodiments is not limited.

[0049] In some embodiments, simulation software can be used to model the assembly data of the interior and exterior trim components of a vehicle. And when using the simulation software, the quality of the modeling mesh can be limited according to the assembly data of the interior and exterior trim components to ensure that the model of the interior and exterior trim components conforms to the actual dimensions of the interior and exterior trim components.

[0050] A possible implementation method is that the limiting conditions for determining the corresponding modeling mesh size based on the size of the interior and exterior trim components are: (1) Model mesh size: The mesh size of large and medium-sized components is 4 mm to 8 mm, and the mesh size of small components is 1 mm to 3 mm; (2) The aspect ratio of the model mesh ≤ 5. The specific limiting conditions for the modeling mesh size in the embodiments of the present application are not limited.

[0051] Exemplarily, the simulation software can be general finite element analysis software such as ANSYS, Abaqus, HyperWorks, Moldflow, etc., or 3D modeling software integrated with CAE functions such as CATIA, UG NX, SolidWorks.

[0052] S102. Based on the model of the interior and exterior trim components, simulate the deformation of the interior and exterior trim components at the target temperature.

[0053] Among them, the target temperature is a temperature outside the preset temperature range.

[0054] Specifically, simulating the deformation of the interior and exterior trim components at the target temperature can perform temperature field calculation in the thermal analysis module of the simulation software. After defining the target temperature and thermal convection / radiation boundary conditions, the temperature field results are transmitted to the structural analysis module through the thermal-structural coupling module, and the deformation is automatically calculated in combination with the coefficient of thermal expansion of the material. Finally, the displacement nephogram, deformation data, and other deformation results of the interior and exterior trim component model are obtained through the post-processing module. This simulation process can be implemented using existing simulation software and will not be elaborated here in detail.

[0055] It should be noted that the preset temperature range is the temperature range under normal use or conventional test scenarios of the interior and exterior trim components, while the target temperature is the temperature of the interior and exterior trim components in extreme environments, which may include extremely low temperatures or extremely high temperatures.

[0056] Exemplarily, the target temperature can be set to -40°C (low temperature environment) or 90°C (high temperature environment). During the application of the method, the target temperature can be set based on the environmental conditions of the region where the vehicle is located. The embodiments of the present application do not limit the specific value of the target temperature.

[0057] S103. Optimize the structure of the interior and exterior trim components based on the deformation.

[0058] Specifically, optimizing the structure of the interior and exterior trim components can be based on the assembly data of the interior and exterior trim components.

[0059] According to the above technical solutions (S101 - S102), it can be seen that this solution can obtain the deformation behavior of the interior and exterior trim components in extreme temperature environments by establishing a model of the interior and exterior trim components and simulating its temperature environment outside the preset range, and can achieve early prediction and quantification of the structural deformation caused by high or low temperature environments. Moreover, optimizing the structure of the interior and exterior trim components based on the deformation of the interior and exterior trim components can reduce the number of mold repairs and costs during the later production of the interior and exterior trim components, and improve the design accuracy of the interior and exterior trim components.

[0060] In some embodiments, the assembly data of the interior and exterior trim components further includes design information, and the design information includes the allowable offset values of each installation point on the interior and exterior trim components in six degrees of freedom directions.

[0061] It should be noted that the six degrees of freedom of the installation point can be understood as: in a three-dimensional space, the degrees of freedom of the installation point along the x-axis direction, along the y-axis direction, along the z-axis direction, around the x-axis direction, around the y-axis direction, and around the z-axis direction.

[0062] Moreover, the allowable offset value of the degree of freedom represents the maximum range of displacement or rotation that the installation point can generate in the corresponding direction, and this value is determined comprehensively based on factors such as design requirements, material properties, and assembly accuracy. The embodiments of the present application do not limit the method for obtaining the allowable offset value of the degree of freedom of the interior and exterior trim components and its specific value.

[0063] In this case, the design information of the interior and exterior trim components can be corrected according to the deformation of the interior and exterior trim components. Step S102 can include the following steps:

[0064] S201. Correct the design information.

[0065] In some embodiments, correcting the design information can correct the allowable offset value of the degree of freedom of the installation point of the interior and exterior trim components.

[0066] It should be noted that the allowable offset value of the degree of freedom is a theoretical safety threshold set based on normal working conditions, and the interior and exterior trim components will deform due to the thermal expansion and contraction effect at the target temperature. When the deformation obtained from the simulation exceeds the preset allowable offset value, it means that the allowable offset value of the original design information may have a design deviation in extreme environments. Therefore, optimizing the allowable offset value of the installation point based on the deformed corrected design information can ensure the assembly accuracy of the interior and exterior trim structures in extreme environments.

[0067] S202. Based on the interior and exterior trim component models and the corrected design information, simulate the deformation of the interior and exterior trim components at the target temperature.

[0068] Specifically, this step re-simulates the corrected design information and the interior and exterior trim component models to obtain the deformation of the interior and exterior trim components at the target temperature based on the corrected design information. That is, it is a re-verification of the corrected interior and exterior trim components.

[0069] It should be noted that through re-verification, it can be determined whether the corrected interior and exterior trim components can meet the structural requirements of the interior and exterior trim components during deformation at the target temperature environment. And when the structural requirements are not met, optimize the structure of the interior and exterior trim components.

[0070] According to the above solution (S201 - S202), it can be seen that this solution can comprehensively verify the corrected design information by simulating the corrected design information and the interior and exterior trim components, and realize the optimization logic of the interior and exterior trim component structure of "verification - correction - verification".

[0071] The following introduces the specific process of correcting the design information in step S201.

[0072] In some embodiments, the installation points of the interior and exterior trim components can be divided into main positioning installation points, secondary positioning installation points, and conventional installation points. For main positioning installation, all six degrees of freedom need to be constrained. For secondary positioning installation points and conventional installation points, there are degrees of freedom that do not need to be constrained.

[0073] In the deformation analysis of the interior and exterior trim components, since the six degrees of freedom of the main positioning installation point need to be fully constrained, the unconstrained degrees of freedom in the secondary positioning installation points and conventional installation points can be simulated for deformation. In this case, step S201 can be specifically implemented as:

[0074] S301. Correct the allowable offset value of the first installation point in the direction of its corresponding first degree of freedom.

[0075] Among them, the first installation point includes the secondary positioning installation point and / or the conventional installation point among the installation points. The first degree-of-freedom direction corresponding to the secondary positioning installation point is the direction in which the secondary positioning installation point is affected by temperature among the six degrees of freedom. The first degree-of-freedom direction corresponding to the conventional installation point is the direction other than the installation direction of the conventional installation point among the six degrees of freedom.

[0076] According to the above solution (S301), it can be seen that this step can achieve differential correction of the allowable offset values of other degrees of freedom of the interior and exterior trim components except for the six degrees of freedom directions of the main positioning installation point, the degrees of freedom directions that are not affected by temperature in the secondary positioning installation point, and the degrees of freedom directions corresponding to the non-installation directions of the conventional installation point.

[0077] In some embodiments, the specific correction process of the allowable offset value in the first degree-of-freedom direction in step S301 may include the following steps:

[0078] S401. Based on the design information, determine the first constraint.

[0079] Among them, the first constraint is used to constrain the deformation of the second installation point in the six degrees of freedom directions and the deformation of the first installation point in the degrees of freedom directions other than its corresponding first degree-of-freedom direction. The second installation point is the installation point other than the first installation point.

[0080] It should also be noted that for the correction of the first degree of freedom of the first installation point, the degrees of freedom of all other installation points and the other degrees of freedom of the first installation point will have an interfering effect on it. If the first constraint is set, at the target temperature, the mutual coupling effect between multiple degrees of freedom will make the simulation results mixed with deformation factors in multiple directions, and it is difficult to separate the true deformation in the first degree-of-freedom direction.

[0081] For example, assume that the first degree of freedom of the first installation point is the degree of freedom along the x-axis direction. When it expands due to heat, if its rotational degree of freedom around the y-axis is not restricted, the component may rotate, resulting in the measured deformation in the x-axis direction containing displacements caused by additional angular offsets, making the correction result deviate from the actual requirements.

[0082] Therefore, by determining the first constraint to lock other degrees of freedom, the simulation can focus on a single variable, ensuring that the deformation calculation result of the first installation point in the first degree-of-freedom direction is only affected by the target temperature.

[0083] S402. Based on the first constraint, simulate the first deformation value of the first installation point in its corresponding first degree-of-freedom direction at the target temperature.

[0084] Specifically, under the first constraint, simulate the target temperature environment and only allow deformation in the first degree of freedom direction of the first installation point. By calculating the expansion or contraction amount of the material under the temperature load and combining the geometric shape of the component, deduce the actual deformation value (such as translation distance or rotation angle, etc.) in this direction.

[0085] As Figure 2 shown, the vehicle spoiler includes 15 installation points. Installation point 1 is the main positioning installation point, and installation points 2 - 15 are secondary positioning installation points. The constraints on the degrees of freedom in the y-axis direction of the secondary positioning installation points are released, that is, the deformation values of installation points 2 - 15 in the degrees of freedom in the y-axis direction are shown in Table 1.

[0086] Table 1

[0087]

[0088]

[0089] S403. Based on the first deformation value, correct the allowable offset value of the first installation point in its corresponding first degree of freedom direction.

[0090] According to the above solution (S401 - S403), it can be seen that this solution simplifies the problem to a single deformation analysis by the method of controlling variables, constraining other degrees of freedom, and reduces the complexity brought by the coupled deformation of multiple degrees of freedom. The first deformation value can be quickly obtained, and the allowable offset of the first degree of freedom can be modified, which can save computing resources.

[0091] In some embodiments, the allowable offset value of the first installation point in its corresponding first degree of freedom direction includes: a first allowable offset value corresponding to the upper boundary value of the preset temperature range, and a second allowable offset value corresponding to the lower boundary value of the preset temperature range. The first allowable offset value can be understood as the allowable offset value of the first degree of freedom in a high-temperature environment, and the second allowable offset value can be understood as the allowable offset value of the first degree of freedom in a low-temperature environment. In this case, step S402 may specifically include the following steps:

[0092] S501. Based on the target temperature, determine the target allowable offset value from the first allowable offset value and the second allowable offset value.

[0093] A possible implementation is that in response to determining that the target temperature is greater than the upper boundary value, determine that the target allowable offset value is the first allowable offset value. In response to determining that the target temperature is less than the lower boundary value, determine that the target allowable offset value is the second allowable offset value.

[0094] It should be noted that in response to determining that the target temperature is greater than the upper boundary value, determining the target allowable offset value as the first allowable offset value can also be implemented as in response to determining that the target temperature is greater than or equal to the upper boundary value, determining the target allowable offset value as the first allowable offset value. Also, in response to determining that the target temperature is less than the lower boundary value, determining the target allowable offset value as the second allowable offset value can also be implemented as in response to determining that the target temperature is less than or equal to the lower boundary value, determining the target allowable offset value as the second allowable offset value. The embodiments of the present application do not limit the determination of the equality relationship between the target temperature and the upper boundary value.

[0095] For example, assume that the preset temperature range is -40°C (lower boundary) to 90°C (upper boundary), the first allowable offset value of the installation point of the vehicle's door interior trim along the x-axis direction is 2.8 mm, and the second allowable offset value is -1.9 mm. If the target temperature is 95°C (greater than the upper boundary of 90°C), then the target allowable offset value takes the first allowable offset value of 2.8 mm. Or, if the target temperature is -40°C, then the target allowable offset value takes the second allowable offset value of -1.9 mm.

[0096] S502. Modify the target allowable offset value based on the first deformation value.

[0097] A possible implementation is that in response to determining that the absolute value of the target allowable offset value is greater than or equal to the absolute value of the first deformation value, the target allowable offset value is modified to the first deformation value. That is, |target allowable offset value| ≥ |first deformation value|.

[0098] It should be noted that in the case where the absolute value of the target allowable offset value is equal to the absolute value of the first deformation value, or in the case where the absolute value of the target allowable offset value is less than the absolute value of the first deformation value, the target allowable offset value of the first degree of freedom may not be modified.

[0099] For example, assume that the target allowable offset value of the installation point 2 of the vehicle's spoiler along the y-axis direction is 1.2, and its first deformation value in the target temperature environment is 0.72. Since |1.2| is greater than |0.72|, the first deformation value of 0.72 is set as the target allowable offset value of the installation point 2 along the y-axis direction.

[0100] For another example, assume that the target allowable offset value of the installation point 3 of the vehicle's spoiler in the y-axis direction is 1.2, and its first deformation value in the target temperature environment is 1.3. Since |1.3| is greater than |1.2|, the target allowable offset value may not be modified.

[0101] It should be understood that this implementation can reasonably adjust the target allowable offset value based on the first deformation value, reduce the inaccurate design quantity (i.e., the allowable offset value), and make the design parameters of the interior and exterior trim components more adaptable to the actual working conditions.

[0102] The following introduces specific embodiments of step S202.

[0103] In some embodiments, the above step S401 sets a first constraint on the first degree of freedom of the first mounting point of the interior and exterior trim components, such that only the deformation of the first degree of freedom in the target temperature environment is considered. And step S403 specifically corrects the allowable offset value of the first degree of freedom. After correcting the allowable offset value for any first degree of freedom of any first mounting point of the interior and exterior trim components, the design information is corrected (i.e., step S201). In this case, all degrees of freedom of all mounting points of the interior and exterior trim components after correcting the design information can be constrained (i.e., fully constrained), and the target temperature environment is simulated again to obtain the deformation of the target area. Therefore, step S202 can be specifically implemented as follows:

[0104] S601. Determine a second constraint based on the corrected design information.

[0105] Wherein, the second constraint is used to constrain the deformation of each mounting point in the six degrees of freedom directions.

[0106] S602. Based on the second constraint, simulate the deformation of the interior and exterior trim components in the target area at the target temperature on the interior and exterior trim component model.

[0107] Specifically, the target area can be understood as the area where the interior and exterior trim components are prone to deformation, or the area of concern.

[0108] In some embodiments, the target area can also be determined by simulating the thermal cloud map of the interior and exterior trim components at the target temperature. Specifically, the area with higher or lower temperature in the thermal cloud map of the interior and exterior trim components can be determined as the target area.

[0109] Exemplarily, the target area can be the middle panel in the vehicle instrument panel (a large-area thin-walled area, prone to warping due to thermal expansion and contraction), the buckle mounting hole (hole deformation caused by stress concentration), the periphery of the air outlet (temperature-sensitive), or the display screen border in the vehicle center console (plastic softening deformation caused by the heat of electronic components), the storage box slide (wear and deformation caused by frequent pulling), the button panel (temperature affects the rebound performance), etc. The embodiments of the present application do not specifically limit the target area.

[0110] It should be noted that in S602, all degrees of freedom of each mounting point of the interior and exterior trim components are constrained, but the overall deformation of the interior and exterior trim components is retained, and the deformation of the target area in the interior and exterior trim components is obtained.

[0111] In some embodiments, through the deformation of the target area in the interior and exterior trim components, the result of the interior and exterior trim components can be optimized. In this case, step S103 can further specifically include the following steps:

[0112] S701. Optimize the structure in response to deformation causing the target area not to meet the structural requirements.

[0113] In a possible implementation, for the deformation of the target area obtained in step S602, it can be evaluated based on a preset evaluation condition. And, in the case of unqualified evaluation, adjust and optimize the assembly data of the interior and exterior trim components.

[0114] Specifically, the evaluation condition can be: compare the size and / or tolerance of the deformed target area based on the size standard and / or tolerance standard of the target area. In the case where the size and / or tolerance of the target area do not meet the corresponding standards, optimize the structure of the interior and exterior trim components. And, according to the size and tolerance of the target area after deformation, optimize the assembly data of the interior and exterior trim components.

[0115] For example, the tolerance standard for the buckle installation area of the door interior trim panel is that the assembly gap ≤ 0.5 mm. The 80°C simulation shows that the gap expands to 0.8 mm due to thermal expansion (out of tolerance by 0.3 mm), which is determined to be unqualified. Optimize the gap to 0.4 mm by increasing the depth of the buckle barb and correct the assembly data.

[0116] Another example, the designed length standard for the middle panel of the instrument panel is 500 ± 0.2 mm. The -40°C simulation shows that the length after cold shrinkage is 499.5 mm (out of the lower tolerance by 0.3 mm), which is determined to be unqualified. Adjust the panel material formula to improve the low-temperature ductility, so that the length is restored to 500 ± 0.15 mm and update the assembly data.

[0117] In some embodiments, the present application also provides an implementation process of a method for optimizing the structure of vehicle interior and exterior trim components, as Figure 3 shown, the implementation process includes:

[0118] 1. Model the assembly data of the interior and exterior trim components. Specifically, obtain the assembly data of the interior and exterior trim components and perform modeling based on the assembly data of the interior and exterior trim components.

[0119] 2. Analyze the high and low temperature deformation of the first constraint. Specifically, set corresponding first constraints for the first degrees of freedom of each first installation point in the interior and exterior trim components to obtain the deformation of each installation point of the interior and exterior trim components in each degree of freedom.

[0120] 3. Modify the design information. Specifically, compare the deformation of each installation point of the exterior trim component in each degree of freedom with the first allowable offset value and the second allowable offset value corresponding to the boundary values of the preset temperature range of the interior and exterior trim components, and modify the first allowable offset value or the second allowable offset value.

[0121] 4. Second Constraint High and Low Temperature Deformation Analysis. Specifically, based on the allowed offset values of each degree of freedom after correction, the simulation model of the interior and exterior trim components is updated, and a second constraint is performed based on the updated simulation model to obtain the deformation of the target area in the interior and exterior trim component model.

[0122] 5. Target Area Deformation Evaluation. Specifically, based on the evaluation conditions corresponding to the target area, the deformation of the target area is evaluated. In the case of unqualified evaluation, the structure of the interior and exterior trim components is optimized. In the case of qualified evaluation, the deformation analysis of the interior and exterior trim components is ended.

[0123] 6. Structure Optimization of Interior and Exterior Trim Components. Specifically, in the case of unqualified evaluation, based on the target area deformation evaluation results, the structure of the interior and exterior trim components is optimized. And steps 2 - 5 are executed again.

[0124] 7. End of Deformation Analysis of Interior and Exterior Trim Components.

[0125] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. To implement the above functions, the structure optimization device of the vehicle interior and exterior trim components includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the present application.

[0126] In an exemplary embodiment, the embodiment of the present application further provides a structure optimization device for vehicle interior and exterior trim components. This structure optimization device for vehicle interior and exterior trim components is in the form of a virtual device, as Figure 4 shown. The device includes: a modeling unit 401, a simulation unit 402, and an optimization unit 403.

[0127] The modeling unit 401 is used to model the interior and exterior trim components based on the assembly data of the vehicle interior and exterior trim components to obtain an interior and exterior trim component model, where the assembly data is used to characterize the structure of the interior and exterior trim components.

[0128] The simulation unit 402 is used to simulate the deformation of the interior and exterior trim components at the target temperature based on the interior and exterior trim component model, where the target temperature is a temperature outside the preset temperature range.

[0129] The optimization unit 403 is used to optimize the structure of the interior and exterior trim components based on the deformation.

[0130] Further, the assembly data further includes design information, where the design information includes the allowable offset values of each mounting point in the six-degree-of-freedom directions in the interior and exterior trim components. Based on the interior and exterior trim component models, simulate the deformation of the interior and exterior trim components at the target temperature. The simulation unit 402 is specifically configured to: modify the design information. Based on the interior and exterior trim component models and the modified design information, simulate the deformation of the interior and exterior trim components at the target temperature.

[0131] Further, to modify the design information, the simulation unit 402 is specifically configured to: modify the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction. Wherein, the first mounting points include the secondary positioning mounting points and / or the regular mounting points among the mounting points. The first degree-of-freedom direction corresponding to the secondary positioning mounting point is the direction in which the secondary positioning mounting point is affected by temperature in the six-degree-of-freedom directions. The first degree-of-freedom direction corresponding to the regular mounting point is the direction other than the mounting direction of the regular mounting point in the six-degree-of-freedom directions.

[0132] Further, to modify the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction, the simulation unit 402 is specifically configured to: based on the design information, determine a first constraint, where the first constraint is used to constrain the deformation of the second mounting point in the six-degree-of-freedom directions and the deformation of the first mounting point in the degree-of-freedom directions other than its corresponding first degree-of-freedom direction, and the second mounting point is a mounting point other than the first mounting point. Based on the first constraint, simulate the first deformation value of the first mounting point in its corresponding first degree-of-freedom direction at the target temperature. Based on the first deformation value, modify the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction.

[0133] Further, the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction includes: a first allowable offset value corresponding to the upper boundary value of the preset temperature range, and a second allowable offset value corresponding to the lower boundary value of the preset temperature range. For modifying the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction based on the first deformation value, the simulation unit 402 is specifically configured to: based on the target temperature, determine a target allowable offset value from the first allowable offset value and the second allowable offset value. Modify the target allowable offset value based on the first deformation value.

[0134] Further, to determine the target allowable offset value from the first allowable offset value and the second allowable offset value based on the target temperature, the simulation unit 402 is specifically configured to: in response to determining that the target temperature is greater than the upper boundary value, determine the target allowable offset value as the first allowable offset value. In response to determining that the target temperature is less than the lower boundary value, determine the target allowable offset value as the second allowable offset value.

[0135] Further, the target allowable offset value is corrected based on the first deformation value. Specifically, the simulation unit 402 is configured to: in response to determining that the absolute value of the target allowable offset value is greater than or equal to the absolute value of the first deformation value, correct the target allowable offset value to the first deformation value.

[0136] Further, based on the interior and exterior trim component model and the corrected design information, the deformation of the interior and exterior trim components at the target temperature is simulated. Specifically, the simulation unit 402 is configured to determine a second constraint based on the corrected design information, where the second constraint is used to constrain the deformation of each mounting point in six degrees of freedom directions. Based on the second constraint, the deformation of the interior and exterior trim components in the target area at the target temperature is simulated on the interior and exterior trim component model.

[0137] Further, based on the deformation optimization structure, the optimization unit 403 is specifically configured to optimize the structure in response to the deformation causing the target area not to meet the structural requirements.

[0138] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated herein.

[0139] In an exemplary embodiment, the present application further provides a vehicle, which includes interior and exterior trim components. Among them, the interior and exterior trim components are optimized by using the structure optimization device for vehicle interior and exterior trim components.

[0140] Figure 5 A block diagram of an electronic device according to an exemplary embodiment is shown. As Figure 5 shown, the electronic device 500 includes, but is not limited to: a processor 501 and a memory 502.

[0141] Among them, the above-mentioned memory 502 is used to store the executable instructions of the above-mentioned processor 501. It can be understood that the above-mentioned processor 501 is configured to execute instructions to implement the structure optimization method for vehicle interior and exterior trim components in the above embodiments.

[0142] It should be noted that those skilled in the art can understand that Figure 5 the structure of the electronic device shown in Figure 5 does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than those shown in

[0143] The processor 501 is the control center of the electronic device, connecting various parts of the entire electronic device through various interfaces and circuits. By running or executing software programs and / or modules stored in the memory 502, and by calling the data stored in the memory 502, it executes various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 501 may include one or more processing units. Optionally, the processor 501 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 501 either.

[0144] The memory 502 can be used to store software programs and various data. The memory 502 mainly includes a program storage area and a data storage area. Among them, the program storage area can store the operating system, application programs required by at least one functional module (such as a processing unit), etc. In addition, the memory 502 can include high-speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0145] In an exemplary embodiment, there is also provided a computer-readable storage medium including instructions, such as the memory 502 including instructions. The above instructions can be executed by the processor 501 of the electronic device 500 to implement the structural optimization method of the vehicle interior and exterior trim components in the above embodiment.

[0146] In actual implementation, Figure 4 the functions of the modeling unit 401, the simulation unit 402, and the optimization unit 403 in Figure 5 can all be implemented by the processor 501 in

[0147] calling the computer program stored in the memory 502. The specific execution process can refer to the description of the structural optimization method of the vehicle interior and exterior trim components in the above embodiment, which will not be elaborated here.

[0148] In an exemplary embodiment, the embodiments of the present application also provide a computer program product including one or more instructions. The one or more instructions can be executed by the processor of the electronic device to complete the vehicle driving scenario recognition method in the above embodiment.

[0149] It should be noted that when one or more instructions in the above-mentioned computer-readable storage medium or in the computer program product are executed by the processor of the electronic device, the various processes of the above-mentioned embodiment of the vehicle driving scenario recognition method are implemented, and the same technical effects as those of the above-mentioned vehicle driving scenario recognition method can be achieved. To avoid repetition, details are not described here again.

[0150] From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0151] In several embodiments provided in the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical or other forms.

[0152] The units described as separate components may or may not be physically separated. The components displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0153] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0154] When 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 readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions for causing a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the methods of the various embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0155] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A structural optimization method for vehicle interior and exterior components, characterized in that, The method includes: Based on the assembly data of the interior and exterior components of a vehicle, modeling the interior and exterior components to obtain an interior and exterior component model, where the assembly data is used to characterize the structure of the interior and exterior components; Based on the interior and exterior component model, simulating the deformation of the interior and exterior components at a target temperature, where the target temperature is a temperature outside a preset temperature range; Optimizing the structure of the interior and exterior components based on the deformation.

2. The method according to claim 1, wherein The assembly data further includes design information, and the design information includes the allowable offset values of each mounting point in the six-degree-of-freedom directions in the interior and exterior components; The simulating the deformation of the interior and exterior components at a target temperature based on the interior and exterior component model includes: Correcting the design information; Based on the interior and exterior component model and the corrected design information, simulating the deformation of the interior and exterior components at a target temperature.

3. The method according to claim 2, wherein The correcting the design information includes: Correcting the allowable offset value of a first mounting point in its corresponding first degree-of-freedom direction; Wherein, the first mounting point includes a secondary positioning mounting point and / or a conventional mounting point among the mounting points; The first degree-of-freedom direction corresponding to the secondary positioning mounting point is the direction in which the secondary positioning mounting point is affected by temperature among the six-degree-of-freedom directions; The first degree-of-freedom direction corresponding to the conventional mounting point is the direction other than the mounting direction of the conventional mounting point among the six-degree-of-freedom directions.

4. The method according to claim 3, wherein The correcting the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction includes: Based on the design information, determining a first constraint, where the first constraint is used to constrain the deformation of a second mounting point in the six-degree-of-freedom directions and the deformation of the first mounting point in the degree-of-freedom directions other than its corresponding first degree-of-freedom direction, and the second mounting point is a mounting point other than the first mounting point; Based on the first constraint, simulating the first deformation value of the first mounting point in its corresponding first degree-of-freedom direction at the target temperature; Based on the first deformation value, correcting the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction.

5. The method according to claim 4, characterized in that, The allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction includes: a first allowable offset value corresponding to the upper boundary value of the preset temperature range, and a second allowable offset value corresponding to the lower boundary value of the preset temperature range; The correcting the allowable offset value of the first mounting point in its corresponding first degree-of-freedom direction based on the first deformation value includes: Based on the target temperature, determining a target allowable offset value from the first allowable offset value and the second allowable offset value; Correcting the target allowable offset value based on the first deformation value.

6. The method according to claim 5, characterized in that The determining the target allowable offset value from the first allowable offset value and the second allowable offset value based on the target temperature includes: In response to determining that the target temperature is greater than the upper boundary value, determining the target allowable offset value as the first allowable offset value; In response to determining that the target temperature is less than the lower boundary value, determining the target allowable offset value as the second allowable offset value.

7. The method according to claim 5, wherein The correcting the target allowable offset value based on the first deformation value includes: In response to determining that the absolute value of the target allowable offset value is greater than or equal to the absolute value of the first deformation value, correct the target allowable offset value to the first deformation value.

8. The method according to claim 2, wherein Based on the interior and exterior trim component model and the corrected design information, simulating the deformation of the interior and exterior trim components at the target temperature includes: Based on the corrected design information, determine a second constraint, where the second constraint is used to constrain the deformation of each of the mounting points in the six degrees of freedom directions; Based on the second constraint, simulate the deformation of the interior and exterior trim components in the target area at the target temperature on the interior and exterior trim component model.

9. The method according to claim 8, characterized in that Optimizing the structure based on the deformation includes: In response to the deformation causing the target area not to meet the structural requirements, optimize the structure.

10. A structural optimization device for vehicle interior and exterior components, characterized in that, The device includes: a modeling unit, a simulation unit, and an optimization unit; The modeling unit, based on the assembly data of the interior and exterior trim components of the vehicle, models the interior and exterior trim components to obtain an interior and exterior trim component model, where the assembly data is used to characterize the structure of the interior and exterior trim components; The simulation unit, based on the interior and exterior trim component model, simulates the deformation of the interior and exterior trim components at the target temperature, where the target temperature is a temperature outside a preset temperature range; The optimization unit, based on the deformation, optimizes the structure of the interior and exterior trim components.

11. A vehicle, characterized in that, The vehicle includes interior and exterior trim components; the interior and exterior trim components are optimized using the structure optimization device as claimed in claim 10.

12. An electronic device, characterized in that, Comprising: A processor and a memory; The memory stores instructions executable by the processor; A memory for storing instructions executable by the processor; When the processor is configured to execute the instructions, the electronic device is caused to implement the method as claimed in any one of claims 1-9.

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