Design process and manufacturing process of automotive wire harnesses

The role of automotive wiring harness in the whole car is to transfer or exchange power signals or data signals of the electrical system to realize the functions and requirements of the electrical system. It is the main body of the network of the automobile circuit, and there is no automobile circuit without the wiring harness. Automotive wiring harness design process and manufacturing process is more complex, requiring wiring harness engineers careful and meticulous, can not have a little sloppy. If the wiring harness design is not good, can not be combined with the function of each part of the organic, it is possible to make the wiring harness to become a faulty automobile links. Below, briefly talk about the specific process of automotive harness design and manufacturing.

First, the electrical layout engineer will first provide the function of the electrical system of the whole vehicle, the electrical load and related special requirements. The state of electrical parts, installation location, wiring harness and electrical parts of the form of docking. Second, according to the electrical function and requirements provided by the electrical layout engineer, you can draw the electrical schematic diagram and wiring diagram of the whole vehicle. Third, according to the electrical schematic circle for each electrical subsystem and circuit energy allocation, which includes the power supply lap wire, as well as the grounding point allocation. Fourth, according to the distribution of the electrical subsystems, to determine the wiring form of the wiring harness, each wiring harness connected to the electrical components and the direction of the car; to determine the form of external protection of the wiring harness and the protection of the over-hole; according to the electrical load to determine the fuse or circuit breaker; and then according to the amount of fuses or circuit breakers to determine the wire wire diameter; according to the function of the electrical components, based on the relevant standards to determine the wire color; according to the electrical components itself Connectors to determine the wiring harness with its terminal and sheath type. Five, drawing two-dimensional wiring harness diagram and three-dimensional wiring harness layout. Six, according to the approved three-dimensional wiring harness layout, check the two-dimensional wiring harness map, two-dimensional wiring harness map is accurate before sending the map, after approval, according to the wiring harness map trial production, production. The above 6 processes described in too general a way, the specific process of automotive wire harness design, will encounter many such and such problems, need to harness designers calmly and quietly to analyze, to ensure that the wiring harness design of the rationality and reliability, to ensure the smooth progress of the vehicle circuit design.

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