The car is mainly composed of power system, transmission system, driving system, steering system, braking system, electrical system, etc. Vehicle pipelines refer to the wire harnesses, hoses, hard pipes, cables and other pipeline-like parts in each functional system. The function of pipeline parts is to transmit electrical signals, force, oil, gas and other media between functional parts, so as to ensure that each system can achieve corresponding functions, so that the vehicle can run safely and smoothly. The whole vehicle pipeline is like the blood vessels and neural network system of the human body.