Automotive Interior mainly refers to the car products used in the interior modification of the car, involving all aspects of the car interior, such as car steering wheel cover, car seat cushion, car floor mat, car , car pendant, interior decoration, storage box, etc. And so on are car interior products. The automotive interior system is an important part of the car body, and the design workload of the interior system accounts for more than 60% of the design workload of the car, far exceeding the shape of the car, and it is one of the most important parts of the body. Each OEM typically has a large automotive interior team that does the bulk of the engineering work related to the interior. The body design is divided into two parts: modeling design and engineering design. In the engineering design, the design workload of the body-in-white is the largest, followed by the design of the interior system, and the design of the body exterior cover is the last. This may not be thought of by ordinary people or non-industry people. The automotive interior mainly includes the following subsystems: instrument panel system, sub-instrument panel system, door inner guard panel system, ceiling system, seat system, pillar guard panel system, other cab fitting systems, cab air circulation system, luggage Interior trim systems, engine compartment trim systems, carpets, seat belts, airbags, steering wheels, as well as interior lighting, interior acoustic systems, and more.