Commercial vehicle rear bumper design method, device and equipment and storage medium
By adopting a systematic design approach, the complexity of commercial vehicle rear bumper design was solved, standardized design was achieved, design efficiency and accuracy were improved, and costs were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional commercial vehicle rear bumper designs are cumbersome and complex, making it difficult to meet target performance requirements, resulting in high design costs and long design time.
A systematic commercial vehicle rear bumper design approach is adopted, including obtaining renderings, determining style level and structural form, conducting manufacturing feasibility analysis, overall layout verification and layout feasibility analysis, generating modification suggestions, and determining relevant engineering design parameters.
Standardize the design process to improve design efficiency, reduce design costs, minimize repeated modifications, and enhance design accuracy and efficiency.
Smart Images
Figure CN121659451A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle manufacturing technology, specifically to a design method, device, equipment, and storage medium for a commercial vehicle rear bumper. Background Technology
[0002] Early commercial vehicle rear bumpers were mostly made of metal. However, with the widespread use of engineering plastics in the automotive industry, commercial vehicle rear bumpers have gradually undergone innovation. Plastic bumpers have advantages such as light weight, high strength, corrosion resistance, and easy processing and molding. While ensuring safety, they also achieve vehicle weight reduction, reducing fuel consumption and operating costs. Plastic rear bumpers can also integrate a step function to facilitate loading and unloading of goods in commercial vehicles, combining functionality and aesthetics in a unified design.
[0003] Traditional commercial vehicle rear bumper designs often rely on benchmark vehicles and design experience, resulting in rear bumpers that fail to meet target performance requirements. This leads to repeated modifications and optimizations, and the design process is often cumbersome, complex, and unsystematic, increasing design costs and extending design time. Summary of the Invention
[0004] This application provides a method, apparatus, equipment, and storage medium for designing rear bumpers for commercial vehicles. By systematically designing rear bumpers for commercial vehicles, efficiency is increased and the goal of standardized design is achieved.
[0005] In a first aspect, embodiments of this application provide a method for designing a rear bumper for a commercial vehicle, the method comprising: Obtain the renderings drawn by the styling department, determine the style level and structural form of the rear bumper, conduct a manufacturing feasibility analysis on the renderings, and generate modification suggestions; The rear bumper overall layout is checked and its feasibility is analyzed. The rear bumper gap and discontinuity are determined, and the main structure cross-section is drawn. The relevant parameters for engineering design are determined, and the rear bumper design data is output.
[0006] In conjunction with the first aspect, in one implementation method, The style grades include bumper material, surface treatment, and whether it is equipped with radar; The structural forms include integrated bumpers, left, right, and center three-section split bumpers, bumpers with internal plastic or metal frames, sound insulation cotton bumpers, and bumpers without frames. The rear bumper structure includes an integrated injection-molded body, a metal frame, and left and right side bumper mounting brackets.
[0007] In conjunction with the first aspect, in one implementation method, the step of performing a manufacturing feasibility analysis on the rendered image and generating modification suggestions specifically includes: Based on the renderings of the rear bumper drawn by the styling department, a manufacturing feasibility analysis of the rear bumper is conducted, and modification suggestions are generated. Modify the renderings according to the suggested modifications; The proposed modifications include suggestions on component segmentation and part size, molding feasibility, cost reasonableness, and whether the appearance treatment is coordinated.
[0008] In conjunction with the first aspect, in one implementation method, the manufacturing feasibility analysis specifically includes: Analyze and evaluate the product size and required equipment and manufacturing processes, the difficulty of controlling and ensuring the quality of each component's assembly line, the assembly methods, assembly processes, and the difficulty of ensuring the quality of each related component.
[0009] In conjunction with the first aspect, in one implementation method, The overall layout verification includes ground clearance verification, rear bumper step depth verification, departure angle verification, and regulatory compliance; The feasibility analysis of the layout includes a pendulum test of the rear bumper, verification of the exhaust pipe position, verification of the rear tow hook layout, and verification of installation and maintainability.
[0010] In conjunction with the first aspect, in one implementation method, The engineering design parameters include demolding direction and demolding angle, wall thickness, stiffener thickness and height, and plastic part structural design.
[0011] In conjunction with the first aspect, in one implementation method, The rear bumper design data includes a BOM (Bill of Materials), 3D data, 2D data, DCS (Distributed Control System) file, and T-FILE file. The information in the BOM includes name, part number, assembly level, material name, and thickness; The 3D data includes the main demolding line, slider line, parting line, design datum information, modification information, and solid or surface model data; The 2D data includes important structural sections, coordinates of each control point, assembly drawings, and 2D engineering drawings.
[0012] Secondly, embodiments of this application provide a commercial vehicle rear bumper design device, the commercial vehicle rear bumper design device comprising: The design input module is used to obtain the renderings drawn by the styling department, determine the style level and structural form of the rear bumper, and perform a manufacturing feasibility analysis on the renderings to generate modification suggestions. The engineering design module is used to verify the overall layout of the rear bumper and analyze its feasibility, determine the gaps and breaks of the rear bumper, draw the main structure cross-section, and determine the relevant parameters for engineering design, thereby outputting the rear bumper design data.
[0013] Thirdly, this application provides a commercial vehicle rear bumper design device, which includes a processor, a memory, and a commercial vehicle rear bumper design program stored in the memory and executable by the processor. When the commercial vehicle rear bumper design program is executed by the processor, it implements the steps of the commercial vehicle rear bumper design method described above.
[0014] Fourthly, embodiments of this application provide a computer-readable storage medium storing a commercial vehicle rear bumper design program, wherein when the commercial vehicle rear bumper design program is executed by a processor, it implements the steps of the commercial vehicle rear bumper design method described above.
[0015] The beneficial effects of the technical solutions provided in this application include: By obtaining the renderings drawn by the styling department, the style level and structural form of the rear bumper are determined, and a manufacturing feasibility analysis is performed on the renderings to generate modification suggestions. Then, the overall layout of the rear bumper is checked and the layout feasibility analysis is performed, the gaps and breaks of the rear bumper are determined, and the main structure cross-section is drawn. The relevant parameters for engineering design are determined, thereby outputting rear bumper design data, standardizing and simplifying the rear bumper design process, improving design efficiency, reducing design costs, and reducing the occurrence of repeated design modifications due to insufficient experience. Attached Figure Description
[0016] Figure 1 This is a flowchart illustrating the design method for the rear bumper of a commercial vehicle in this application; Figure 2 Schematic diagram of the main cross-section location; Figure 3 Schematic diagram of the main cross-section location; Figure 4 This is a diagram of the corner. Figure 5 This is a schematic diagram of the functional modules of the commercial vehicle rear bumper design device in this application. Figure 6 This is a schematic diagram of the hardware structure of the commercial vehicle rear bumper design equipment for this application. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0019] Firstly, this application provides a method for designing a rear bumper for commercial vehicles. By systematically designing the rear bumper of commercial vehicles, the design time is reduced, efficiency is increased, and the goal of standardized design is achieved. Furthermore, it improves the efficiency and accuracy of designers, reduces labor costs, and reduces defects in the rear bumper design stage. At the same time, it plays a guiding and standardizing role for similar bumper designs.
[0020] In one embodiment, reference is made to Figure 1 , Figure 1 This is a flowchart illustrating the design method for the rear bumper of a commercial vehicle according to this application. Figure 1 As shown, the design methods for the rear bumper of commercial vehicles include: S1: Obtain the renderings drawn by the styling department, determine the style level and structural form of the rear bumper, and conduct a manufacturing feasibility analysis on the renderings to generate modification suggestions; S2: Perform overall layout verification and feasibility analysis of the rear bumper, determine the rear bumper gap and discontinuity, draw the main structure section, and determine the relevant parameters for engineering design, thereby outputting the rear bumper design data.
[0021] In this application, the market positioning and structural form are determined based on the market positioning of the vehicle by the marketing department and the external renderings by the styling department. The style level and structural form of the rear bumper are determined accordingly. Style level includes bumper material (plastic, metal), surface treatment (whether it has a leather texture, whether it is painted, etc.), and whether it includes radar, etc. Structural forms include one-piece bumpers, three-section (left, right, and center) split bumpers, bumpers with internal plastic or metal frames, sound insulation bumpers, and bumpers without frames, etc. The rear bumper structure includes a one-piece injection-molded body, a metal frame, and left and right side bumper mounting brackets.
[0022] Furthermore, in one embodiment, a manufacturing feasibility analysis is performed on the rendered image to generate modification suggestions, specifically including: S101: Based on the renderings of the rear bumper drawn by the styling department, conduct a manufacturing feasibility analysis of the rear bumper and generate modification suggestions; S102: Modify the rendering according to the modification suggestions; The proposed modifications include suggestions on component segmentation and part size, molding feasibility, cost reasonableness, and whether the appearance treatment is coordinated.
[0023] Specifically, a manufacturing feasibility analysis is conducted based on the renderings drawn by the styling department, and modification suggestions are provided for the styling department to revise the renderings. These suggestions generally include component breakdown and part size recommendations, molding feasibility, cost rationality, and appearance coordination. For commercial vehicles, economic practicality is the primary consideration.
[0024] In this application, the manufacturing feasibility analysis specifically includes: Analyze and evaluate the product size and required equipment and manufacturing processes, the difficulty of controlling and ensuring the quality of each component's assembly line, the assembly methods, assembly processes, and the difficulty of ensuring the quality of each related component.
[0025] In this application, the overall layout verification includes ground clearance verification, rear bumper step depth verification, departure angle verification, and regulatory compliance verification. The layout feasibility analysis includes a pendulum test of the rear bumper, exhaust pipe position verification, rear tow hook layout verification, and installation and maintainability verification.
[0026] For the pendulum test of the rear bumper, according to relevant requirements, the bumper should play a corresponding protective role during the collision test. The center misalignment between the anti-collision beam and the collision surface of the bumper should not exceed 20mm, and the height of the collision surface from the ground should be (450±40)mm.
[0027] For exhaust pipe position verification, the general safety clearance between the rear bumper and the exhaust pipe is designed to be >25mm.
[0028] For the rear tow hook arrangement check, the single-sided gap of the tow hook should be more than 5 mm, and there should be no contact or scraping between the tow bar or the tow rope and the bumper. After most tow hooks are installed, the hook part is outside the rear bumper, so the hook will not interfere with the rear bumper. When the hook is located inside the rear bumper (mostly using a rope), it is necessary to check whether the towing rope interferes with the rear bumper.
[0029] For installation and maintenance checks, space feasibility should be considered when removing and installing the rear bumper. The main inspection items are shown in Table 1 below.
[0030] Table 1
[0031] In this application, the rear bumper gap and discontinuity are determined during the styling stage and the dimensional department. The rear bumper gap and discontinuity diagram is determined and drawn, and then input into the styling production model. The determination of the gap and discontinuity is mainly based on the dimensional department's benchmarking against competitors, combined with the production and technical processes of different OEMs, and the gap surface difference is calculated through the dimensional chain.
[0032] In this application, the main structural section is drawn during the modeling stage based on the design brief and the initial CAS (Design for All Structures) drawing of the rear bumper's main structural section. The location of the main section is as follows: Figure 2 and Figure 3 As shown, different colors are used to distinguish them.
[0033] It should be noted that most components of the rear bumper system are injection molded, so attention must be paid to the rationality of the manufacturing process in the structural design. Relevant engineering design parameters include demolding direction and angle, wall thickness, rib thickness and height, and the structural design of the plastic parts.
[0034] For the demolding direction and demolding angle, the main demolding direction needs to be determined during the 3D engineering design of the bumper. The demolding direction of the front and rear bumper bodies forms an angle of 3 to 5 degrees with the positive X direction. The determination of the main demolding direction of other components should follow the principle of keeping the parting surface as simple as possible.
[0035] Regarding wall thickness, it should be made as uniform as possible to avoid defects such as shrinkage cavities, bubbles, and collapses caused by variations in wall thickness, which could affect product quality. If structurally required, the wall thickness non-uniformity should be between 1:1.5 and 1:2.
[0036] Regarding the thickness and height of the reinforcing ribs, the thickness of the reinforcing ribs is generally 1 / 3 of the material thickness, and the height of the ribs should generally not exceed 40mm.
[0037] For the structural design of plastic parts, to avoid stress concentration at corners, rounded transitions should be used. This is beneficial for mold manufacturing and service life. Generally, each connection of a plastic part should have a 0.5~1mm rounded corner, while corners can use... Figure 4 The fillet radius shown is used to reduce internal stress and ensure consistent wall thickness.
[0038] In this application, the rear bumper design data includes a BOM (Bill of Materials) table, 3D data, 2D data, a DCS (Distributed Control System) file, and a T-FILE (a binary file format for storing aggregate logs) file.
[0039] The BOM (Bill of Materials) includes information such as name, part number, assembly level, material name, and thickness; 3D data includes main demolding line, slider line, parting line, design datum information, change information, and solid or surface model data (consistent with the actual object); 2D data includes important structural sections (gap, discontinuity), coordinates of each control point, assembly drawing, and 2D engineering drawing.
[0040] The commercial vehicle rear bumper design method of this application embodiment obtains the renderings drawn by the styling department, determines the style level and structural form of the rear bumper, performs a manufacturing feasibility analysis on the renderings, generates modification suggestions, then performs overall layout verification and layout feasibility analysis of the rear bumper, determines the rear bumper gaps and discontinuities, and draws the main structure cross-section, and determines the relevant engineering design parameters, thereby outputting rear bumper design data, standardizing and simplifying the rear bumper design process, improving design efficiency, reducing design costs, and reducing the occurrence of repeated design modifications due to insufficient experience.
[0041] Secondly, embodiments of this application also provide a design device for a rear bumper of a commercial vehicle.
[0042] In one embodiment, reference is made to Figure 5 , Figure 5 This is a schematic diagram of the functional modules of the commercial vehicle rear bumper design device in this application. Figure 5 As shown, the commercial vehicle rear bumper design device includes: a design input module and an engineering design module.
[0043] The design input module is used to obtain the renderings drawn by the styling department, determine the style level and structural form of the rear bumper, and perform a manufacturing feasibility analysis on the renderings to generate modification suggestions. The engineering design module is used to check the overall layout of the rear bumper and perform layout feasibility analysis, determine the gaps and breaks of the rear bumper, draw the main structure cross-section, and determine the relevant parameters for engineering design, thereby outputting the rear bumper design data.
[0044] In this application, the style grades include bumper material, surface treatment method, and whether radar is included; the structural forms include one-piece bumpers, three-section split bumpers (left, right, and center), bumpers with internal plastic or metal frames, sound insulation cotton bumpers, and bumpers without frames; wherein, the structure of the rear bumper includes an one-piece injection molded body, a metal frame, and left and right side bumper mounting brackets.
[0045] Specifically, based on the marketing department's market positioning of the entire vehicle and the styling department's external renderings, the style and structural form of the rear bumper are determined. Style and grade include bumper material (plastic, metal), surface treatment (whether it has a leather texture, is painted, etc.), and whether it includes radar. Structural forms include one-piece bumpers, three-section (left, right, and center) bumpers, bumpers with internal plastic or metal frames, sound-insulating bumpers, and bumpers without frames. The rear bumper structure includes a one-piece injection-molded body, a metal frame, and left and right side bumper mounting brackets.
[0046] In this application, the step of performing a manufacturing feasibility analysis on the rendered image and generating modification suggestions specifically includes: Based on the renderings of the rear bumper drawn by the styling department, a manufacturing feasibility analysis of the rear bumper is conducted, and modification suggestions are generated. Modify the renderings according to the suggested modifications; The proposed modifications include suggestions on component segmentation and part size, molding feasibility, cost reasonableness, and whether the appearance treatment is coordinated.
[0047] In this application, the manufacturing feasibility analysis specifically includes: Analyze and evaluate the product size and required equipment and manufacturing processes, the difficulty of controlling and ensuring the quality of each component's assembly line, the assembly methods, assembly processes, and the difficulty of ensuring the quality of each related component.
[0048] In this application, the overall layout verification includes ground clearance verification, rear bumper step depth verification, departure angle verification, and regulatory compliance; The feasibility analysis of the layout includes a pendulum test of the rear bumper, verification of the exhaust pipe position, verification of the rear tow hook layout, and verification of installation and maintainability.
[0049] In this application, the engineering design-related parameters include demolding direction and demolding angle, wall thickness, stiffener thickness and height, and plastic part structural design.
[0050] In this application, the rear bumper design data includes a BOM (Bill of Materials), 3D data, 2D data, a DCS (Distributed Control System) file, and a T-FILE file; The information in the BOM includes name, part number, assembly level, material name, and thickness; The 3D data includes the main demolding line, slider line, parting line, design datum information, modification information, and solid or surface model data; The 2D data includes important structural sections, coordinates of each control point, assembly drawings, and 2D engineering drawings.
[0051] The commercial vehicle rear bumper design device of this application embodiment obtains the renderings drawn by the styling department, determines the style level and structural form of the rear bumper, performs a manufacturing feasibility analysis on the renderings, generates modification suggestions, then performs overall layout verification and layout feasibility analysis of the rear bumper, determines the rear bumper gaps and discontinuities, and draws the main structure cross-section, and determines the relevant parameters for engineering design, thereby outputting rear bumper design data, standardizing and simplifying the rear bumper design process, improving design efficiency, reducing design costs, and reducing the occurrence of repeated design modifications due to insufficient experience.
[0052] Thirdly, this application provides a commercial vehicle rear bumper design device, which can be a personal computer (PC), laptop computer, server or other device with data processing capabilities.
[0053] Reference Figure 6 , Figure 6 This is a schematic diagram of the hardware structure of the commercial vehicle rear bumper design device involved in the embodiments of this application. In this embodiment, the commercial vehicle rear bumper design device may include a processor, a memory, a communication interface, and a communication bus.
[0054] The communication bus can be of any type and is used to interconnect the processor, memory, and communication interface.
[0055] The communication interface includes input / output (I / O) interfaces, physical interfaces, and logical interfaces used for interconnecting components within the commercial vehicle rear bumper design equipment, as well as interfaces used for interconnecting the commercial vehicle rear bumper design equipment with other devices (such as other computing devices or user equipment). Physical interfaces can be Ethernet interfaces, fiber optic interfaces, ATM interfaces, etc.; user equipment can be displays, keyboards, etc.
[0056] Memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.
[0057] The processor can be a general-purpose processor, which can call the commercial vehicle rear bumper design program stored in memory and execute the commercial vehicle rear bumper design method provided in the embodiments of this application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed when the commercial vehicle rear bumper design program is called can be referred to in the various embodiments of the commercial vehicle rear bumper design method of this application, and will not be repeated here.
[0058] Those skilled in the art will understand that Figure 6 The hardware structure shown does not constitute a limitation of this application and may include more or fewer components than shown, or combine certain components, or have different component arrangements.
[0059] Fourthly, embodiments of this application also provide a computer-readable storage medium.
[0060] The present application provides a computer-readable storage medium storing a commercial vehicle rear bumper design program, wherein when the commercial vehicle rear bumper design program is executed by a processor, it implements the steps of the commercial vehicle rear bumper design method described above.
[0061] The method implemented when the commercial vehicle rear bumper design procedure is executed can be referred to in the various embodiments of the commercial vehicle rear bumper design method of this application, and will not be repeated here.
[0062] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus. The terms "first," "second," and "third," etc., are used to distinguish different objects, etc., and do not indicate a sequence, nor do they limit "first," "second," and "third" to different types.
[0063] In the description of the embodiments of this application, terms such as "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a concrete manner.
[0064] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more.
[0065] In some processes described in the embodiments of this application, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this application, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.
[0066] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device to execute the methods described in the various embodiments of this application.
[0067] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A design method for a rear bumper of a commercial vehicle, characterized in that, The commercial vehicle rear bumper design method includes: Obtain the renderings drawn by the styling department, determine the style level and structural form of the rear bumper, conduct a manufacturing feasibility analysis on the renderings, and generate modification suggestions; The rear bumper overall layout is checked and its feasibility is analyzed. The rear bumper gap and discontinuity are determined, and the main structure cross-section is drawn. The relevant parameters for engineering design are determined, and the rear bumper design data is output.
2. The commercial vehicle rear bumper design method as described in claim 1, characterized in that: The style grades include bumper material, surface treatment, and whether it is equipped with radar; The structural forms include integrated bumpers, left, right, and center three-section split bumpers, bumpers with internal plastic or metal frames, sound insulation cotton bumpers, and bumpers without frames. The rear bumper structure includes an integrated injection-molded body, a metal frame, and left and right side bumper mounting brackets.
3. The commercial vehicle rear bumper design method as described in claim 1, characterized in that, The process of performing a manufacturing feasibility analysis on the rendered image and generating modification suggestions specifically includes: Based on the renderings of the rear bumper drawn by the styling department, a manufacturing feasibility analysis of the rear bumper is conducted, and modification suggestions are generated. Modify the renderings according to the suggested modifications; The proposed modifications include suggestions on component segmentation and part size, molding feasibility, cost reasonableness, and whether the appearance treatment is coordinated.
4. The commercial vehicle rear bumper design method as described in claim 3, characterized in that, For manufacturing feasibility analysis, the specific components include: Analyze and evaluate the product size and required equipment and manufacturing processes, the difficulty of controlling and ensuring the quality of each component's assembly line, the assembly methods, assembly processes, and the difficulty of ensuring the quality of each related component.
5. The commercial vehicle rear bumper design method as described in claim 1, characterized in that: The overall layout verification includes ground clearance verification, rear bumper step depth verification, departure angle verification, and regulatory compliance. The feasibility analysis of the layout includes a pendulum test of the rear bumper, verification of the exhaust pipe position, verification of the rear tow hook layout, and verification of installation and maintainability.
6. The commercial vehicle rear bumper design method as described in claim 1, characterized in that: The engineering design parameters include demolding direction and demolding angle, wall thickness, stiffener thickness and height, and plastic part structural design.
7. The commercial vehicle rear bumper design method as described in claim 1, characterized in that: The rear bumper design data includes a BOM (Bill of Materials), 3D data, 2D data, DCS (Distributed Control System) file, and T-FILE file. The information in the BOM includes name, part number, assembly level, material name, and thickness; The 3D data includes the main demolding line, slider line, parting line, design datum information, modification information, and solid or surface model data; The 2D data includes important structural sections, coordinates of each control point, assembly drawings, and 2D engineering drawings.
8. A design device for a rear bumper of a commercial vehicle, characterized in that, The commercial vehicle rear bumper design device includes: The design input module is used to obtain the renderings drawn by the styling department, determine the style level and structural form of the rear bumper, and perform a manufacturing feasibility analysis on the renderings to generate modification suggestions. The engineering design module is used to verify the overall layout of the rear bumper and analyze its feasibility, determine the gaps and breaks of the rear bumper, draw the main structure cross-section, and determine the relevant parameters for engineering design, thereby outputting the rear bumper design data.
9. A device for designing rear bumpers for commercial vehicles, characterized in that, The commercial vehicle rear bumper design device includes a processor, a memory, and a commercial vehicle rear bumper design program stored in the memory and executable by the processor, wherein when the commercial vehicle rear bumper design program is executed by the processor, it implements the steps of the commercial vehicle rear bumper design method as described in any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a commercial vehicle rear bumper design program, wherein when the commercial vehicle rear bumper design program is executed by a processor, it implements the steps of the commercial vehicle rear bumper design method as described in any one of claims 1 to 7.