The basic content of the 3D design of the wiring harness The 3D design of the wiring harness is mainly based on the virtual data environment of the vehicle, and the wiring harness is arranged in the 3D design software, and the detailed 3D direction data of the wiring harness is designed according to the layout of the vehicle environment. In the design process, determine the direction and fixing method of the wire harness; reasonably design the wire harness supports and fasteners, select reasonable materials, and optimize the cost. At the same time, it must meet the production requirements to ensure that the wiring harness is safe and reliable on the vehicle. The basic contents of 3D design include wiring harness direction design, fixing method design and development certification of new parts, design and certification review of wiring harness protection, design of grounding and crimping point positions, design and establishment of 3D digital model library for parts, production Processing optimization design and so on.