At present, there are many wire harnesses used in automobiles, and the electronic control system is closely related to the wire harness. The automobile harness is the network main body of the automobile circuit, which connects the electronic and electrical components of the automobile and makes them function. It should not only ensure the transmission of electrical signals, but also ensure the reliability of the connection circuit, supply the specified current value to the electronic and electrical components, prevent electromagnetic interference to the surrounding circuit, and eliminate electrical short circuit.
From the functional point of view, the automobile wiring harness is divided into two types: the power line that carries the power of the driving actuating element (actuator) and the signal line that transmits the input command of the sensor. Power lines are thick wires that carry large currents, while signal lines are thin wires that do not carry electricity (optical fiber communication).
With the increase of automobile functions and the widespread application of electronic control technology, there are more and more electrical components and more and more wires. The number of circuits and power consumption on the automobile increase significantly, and the harness becomes thicker and heavier. This is a big problem that needs to be solved. How to make a large number of wire harnesses more effectively and reasonably arranged in the limited automobile space, so that the automobile wire harness can play a greater role, has become a problem faced by the automobile manufacturing industry.