Automotive Wiring Harness Design Principles

Views: 213 Author: Site Editor Publish Time: 2024-03-06 Origin: Site

Automotive wiring harness is the main body of automotive circuit network. Without a wiring harness, there is no car circuit. With the improvement of people's safety, comfort, economy and emission requirements, more and more electrical appliances and functions are on the car. Therefore, the wiring harness connecting various electrical appliances has become more and more complicated, and has become a common link of modern automobile failure. Therefore, the design, production and manufacture of automobiles have received increasing attention. How to improve the comprehensive performance of automobile wiring harness has become the focus of people's attention, and it has become an inevitable trend to increase the initial development efforts together with the OEM.

Harness design process and manufacturing process?

(1) The electrical layout engineer should provide the functions, electrical loads and related special requirements of the entire vehicle electrical system. The status, installation position and connection form of the wiring harness and electrical equipment.

(2) According to the electrical functions and requirements, draw the electrical schematic diagram and circuit diagram of the whole vehicle.

(3) According to the electrical schematic diagram, distribute energy to each electrical subsystem and circuit, including the distribution of power supply ground wire and ground point.

(4) According to the distribution of the electrical components of each subsystem, determine the wiring form of the harness, the electrical components connected to each harness and the direction on the car; determine the external protection form and via protection of the harness; determine the fuse or open circuit according to the electrical load Re-coloring; according to the connector of the electrical equipment itself, determine the type of terminal and sheath on the harness and its docking.

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