A parametric design method for the main section of the SL14 vehicle

Abstract

This invention discloses a parametric design method for the main cross-section of a vehicle SL14, relating to the field of automotive technology. Based on the CATIA application environment, a template for drawing the SL14 main cross-section is created. The aim is to design a template for X-sections such as the front sill. This cross-section can be quickly obtained by simply confirming and changing a few parameters. By adjusting the parameter values, different cross-sections of the same vehicle model can be generated. By changing different parameters, parametric and serialized design of the front sill cross-sections of different vehicle models can be achieved, providing selectivity. Under the premise of ensuring engineering feasibility, ergonomic requirements, and safety requirements, it improves drawing efficiency, saves drawing time, and significantly improves development efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, specifically to a parametric design method for the main cross-section of a vehicle SL14. Background Technology

[0002] Automotive development begins with styling design, followed by cross-sectional design of typical body positions to verify ergonomic, functional, and layout parameters, before detailed data design. Automotive design starts with hard point and parameter definitions; the main body cross-section is a crucial means of verifying the validity of these definitions, reflecting the hard points and structural state of key automotive components. In the early stages of automotive design, inputs are provided to the styling and body / chassis / electrical disciplines to constrain styling and engineering design, enabling feasibility analysis and verification of the main body structure, and are integrated throughout the entire process from renderings to the release of production data.

[0003] The front sill SL14 is the main cross-section of the front sill, primarily controlling dimensions such as ease of entry and exit, and the effective width and area of ​​the sill sheet metal cavity. Currently, the SL14 cross-section is manufactured manually, without a parametric or standardized design, resulting in low development efficiency. Furthermore, there is no literature documenting a parametric design method for the entire vehicle's SL14 main cross-section. Summary of the Invention

[0004] This invention addresses the problems existing in the prior art by creatively devising a parametric design method for the main cross-section of the SL14 vehicle. Based on the CATIA application environment, a template for drawing the main cross-section of the SL14 is created. By changing different parameters, the parametric and serialized design of the front sill cross-section of different vehicle models can be achieved, greatly improving development efficiency.

[0005] The technical solution adopted to realize the present invention is: a parametric design method for the main section of the SL14 vehicle, characterized in that it includes the following steps:

[0006] 1) Input the unloaded ground line data and the location of point R;

[0007] 2) Insert document instantiation and import CATIA template;

[0008] 3) Following the instructions in the CATIA template, select the unloaded ground line and point R;

[0009] 4) After confirming the unloaded ground line and R point, change the parameter values ​​and modify the basic parameters of the vehicle width, stop width, ease of getting on and off the vehicle EY1 and CZ1, and the ground clearance of the lower part of the sill according to the project requirements to generate the initial version of the cross-section data.

[0010] 5) After the initial cross-section is formed, adjust the parameters of battery height and width, distance between floor and battery, carpet thickness, and threshold guard height to meet project requirements;

[0011] 6) Determine whether the ease of getting on and off the vehicle (CZ1), the effective width of the threshold cavity, and the external visibility meet the project requirements;

[0012] 7) If the ease of getting on and off the vehicle CZ1, the effective cavity width of the threshold, and the external visibility do not meet the requirements, then re-enter step 5) to readjust; if the ease of getting on and off the vehicle CZ1, the effective cavity width of the threshold, and the external visibility meet the requirements, then generate the SL14 main section, add dimensions and annotations.

[0013] Furthermore, the CATIA template is applicable to sedans, SUVs, and MPVs.

[0014] Furthermore, the CATIA template can generate cross-sections of the same vehicle model with different designs by adjusting parameter values.

[0015] Furthermore, the CATIA template is named SL14.CATPart.

[0016] Furthermore, the dimensions that need to be controlled for the main cross-section of the SL14 include: floor carpet, door sill guard plate, door opening sealing strip, inner door sill plate, outer door sill plate, door sill reinforcement plate, door sill sealing strip, outer door panel, and inner door panel.

[0017] The beneficial effects of the parametric design method for the main cross-section of the SL14 vehicle of this invention are reflected in the following aspects:

[0018] A parametric design method for the main cross-section of the SL14 vehicle is proposed. Based on the CATIA application environment, a template for drawing the SL14 main cross-section is created. The aim is to design a template for the X-section of the front sill, etc. This cross-section can be quickly obtained by simply confirming and changing a few parameters. By adjusting the parameter values, cross-sections of different schemes for the same vehicle model can be generated. By changing different parameters, parametric and serialized design of the front sill cross-section of different vehicle models can be achieved, providing selectivity. Under the premise of ensuring engineering feasibility, ergonomic requirements, and safety requirements, the drawing efficiency is greatly improved and the drawing time is saved. Attached Figure Description

[0019] Figure 1 This is a flowchart of a parametric design method for the main cross-section of the SL14 vehicle.

[0020] Figure 2 This is a schematic diagram of the main cross-section of the SL14 vehicle.

[0021] In the picture: 1. Door sill seal, 2. Outer door panel, 3. Inner door panel, 4. Door opening seal, 5. Door sill guard, 6. Carpet, 7. Floor, 8. Battery, 9. Wiring, 10. Inner door sill panel, 11. Door sill reinforcement plate, 12. Outer door sill panel. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-2 The present invention will be further described in detail below with reference to specific embodiments. In order to make the purpose, technical solution and advantages of the embodiments clearer, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0023] As attached Figure 1 As shown, a parametric design method for the main section of the SL14 vehicle is characterized by comprising the following steps:

[0024] 1) Input the unloaded ground line data and the location of point R;

[0025] 2) Insert document instantiation and import CATIA template;

[0026] 3) Following the instructions in the CATIA template, select the unloaded ground line and point R;

[0027] 4) After confirming the unloaded ground line and R point, change the parameter values ​​and modify the basic parameters of the vehicle width, stop width, ease of getting on and off the vehicle EY1 and CZ1, and the ground clearance of the lower part of the sill according to the project requirements to generate the initial version of the cross-section data.

[0028] 5) After the initial cross-section is formed, adjust the parameters of battery height and width, distance between floor and battery, carpet thickness, and threshold guard height to meet project requirements;

[0029] 6) Determine whether the ease of getting on and off the vehicle (CZ1), the effective width of the threshold cavity, and the external visibility meet the project requirements;

[0030] 7) If the ease of getting on and off the vehicle CZ1, the effective cavity width of the threshold, and the external visibility do not meet the requirements, then re-enter step 5) to readjust; if the ease of getting on and off the vehicle CZ1, the effective cavity width of the threshold, and the external visibility meet the requirements, then generate the SL14 main section, add dimensions and annotations.

[0031] As attached Figure 2 A schematic diagram of the main cross-section of the SL14 vehicle shows the dimensions that need to be controlled:

[0032] Floor 7 Carpet 6: Positioning is performed according to the battery 8 input platform and the NVH professional carpet 6 requirements;

[0033] Threshold guard plate 5: Adjusted according to the R point position, ease of getting on and off CZ1, and the wiring harness 9 input by professionals; Door opening sealing strip 4: Determined according to the sealing strip type and stop width input by professionals;

[0034] Inner sill plate 10: Positioned according to the location of the door opening sealing strip 4, the battery 8, and the ground clearance of the lower part of the sill; Outer sill plate 12: Adjusted according to the location of the door opening sealing strip 4, the ease of getting on and off the vehicle EY1, and the ground clearance of the lower part of the sill;

[0035] Threshold reinforcement plate 11: determined based on the inner threshold plate 10, the effective cavity width required for safety, and the outer threshold plate 12;

[0036] Threshold sealing strip 1: Determined based on the sealing strip type and threshold outer plate 12 as required by professional specifications;

[0037] Door outer panel 3: Adjusted according to the overall vehicle width, the bottom height of the door from the ground, and the door sill outer panel 12.

[0038] Inner door panel 2: Adjusted according to the outer door panel 3 and the door sill sealing strip 1.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A parametric design method for the main section of the SL14 vehicle, characterized in that, It includes the following steps: 1) Input the unloaded ground line data and the location of point R; 2) Insert document instantiation and import CATIA template; 3) Following the instructions in the CATIA template, select the unloaded ground line and point R; 4) After confirming the unloaded ground line and R point, change the parameter values ​​and modify the basic parameters of the vehicle width, stop width, ease of getting on and off the vehicle EY1 and CZ1, and the ground clearance of the lower part of the sill according to the project requirements to generate the initial version of the cross-section data. 5) After the initial cross-section is formed, adjust the parameters of battery height and width, distance between floor and battery, carpet thickness, and threshold guard height to meet project requirements; 6) Determine whether the ease of getting on and off the vehicle (CZ1), the effective width of the threshold cavity, and the external visibility meet the project requirements; 7) If the ease of getting on and off the vehicle CZ1, the effective cavity width of the threshold, and the external visibility do not meet the requirements, then re-enter step 5) to readjust; if the ease of getting on and off the vehicle CZ1, the effective cavity width of the threshold, and the external visibility meet the requirements, then generate the SL14 main section, add dimensions and annotations.

2. The parametric design method for the main section of the SL14 vehicle according to claim 1, characterized in that, The CATIA template described is applicable to sedans, SUVs, and MPVs.

3. The parametric design method for the main section of the SL14 vehicle according to claim 1, characterized in that, The CATIA template can generate cross-sections of the same vehicle model with different designs by adjusting parameter values.

4. The parametric design method for the main section of the SL14 vehicle according to claim 1, characterized in that, The CATIA template is named SL14.CATPart.

5. The parametric design method for the main section of the SL14 vehicle according to claim 1, characterized in that, The dimensions that need to be controlled for the main cross-section of SL14 include: floor carpet, door sill guard, door opening sealing strip, inner door sill panel, outer door sill panel, door sill reinforcement plate, door sill sealing strip, outer door panel, and inner door panel.

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