What are the characteristics of automobile design? Brief introduction of automobile design process

The engineering design stage mainly includes the following aspects:

1. General plan design, which refines and accurately determines the size and position of each component on the previous general plan sketch. Determine the detailed structure, characteristic parameters and quality requirements of each component. Including engine compartment, chassis, interior decoration, exterior decoration and automobile electrical appliances.

2. Volume modeling data: After the sludge model is completed, the sludge model is measured with a three-dimensional measuring instrument, and the data generated by the measurement is called point cloud. Engineers use curve software such as Catia and UG imageware to construct the shape of automobile products according to point clouds.

3. Engine engineering design. General new car development will choose the original mature engine powertrain, and then arrange and match the engines according to the characteristics and requirements of the new car. This process continues until the prototype testing stage synchronized with chassis engineering design.

4. BIW engineering design. The design of body-in-white is based on the body modeling structure. The so-called body-in-white refers to the welded assembly of body structural parts and covering parts, including the unpainted body including hood, fender, side wall, door and trunk lid. The body-in-white is a closed structure to ensure the strength of the whole vehicle. These components are still constructed by using three-dimensional digital and simulation software, such as UG and CATIA, and material selection, process analysis, welding and assembly analysis are carried out.

5. Chassis engineering design, including transmission system, traveling system, steering system and braking system design. The main work includes: the definition and calculation of size, structure, process function and parameters, and the completion of three-dimensional mathematical model according to the calculation data; Then, according to the three-dimensional mathematical model, simulation experiments and sample preparation of parts are carried out; Complete the design and assembly drawing according to the three-dimensional drawing.

6. Indoor and outdoor decoration engineering design. The main design of interior includes dashboard, steering wheel, seat, seat belt, airbag, carpet, side wall interior, sun visor, armrest, interior rearview mirror, etc.

7. Electrical design, electrical engineering is responsible for all electrical design of the whole vehicle, including wiper system, air conditioning system, various instruments, vehicle switch, front and rear lights and interior lighting system.

After completing the design and engineering design stages of the above assembly system, the vehicle design scheme is finally determined. At this point, you can prepare detailed product technical specifications and detailed parts list to verify the regulations. After determining the performance of the whole vehicle, the production process of each assembly is sorted and synthesized.

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