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Mobile WebSite1: including its electrical performance, material spatter, temperature resistance, etc., are higher than the general requirements of the wiring harness, especially related to the security aspects: such as the direction of the control system, brake these important components of the wiring harness, more stringent requirements The
2: automotive wiring harness function: In modern cars, car wiring harness particularly large, electronic control system and wiring harness is closely related. Someone has played an image of the metaphor: If the computer, the sensor and the implementation of the function of the components with the human metaphor, it can be said that the computer is equivalent to the human brain, the sensor is equivalent to the sensory organs, the implementation of components equivalent to the movement tube, then the harness is the nerve And blood vessels.
3: car wiring harness is the main body of the car circuit, connecting the electrical and electronic components of the car and make it function, there is no wiring harness does not exist in the car circuit. At present, whether it is a luxury car or an economy car, the wiring harness is basically the same form, are composed of wires, connectors and wrapping tape, it is necessary to ensure that the transmission of electrical signals, but also to ensure that the connection circuit The reliability of the supply of electrical and electronic components to the provisions of the current value to prevent the electromagnetic interference around the circuit, and to exclude electrical short circuit.
4: car harness from the function points, there are carriers to drive the implementation of components (actuator) power lines and transmission of the sensor input command signal line two. The power line is a thick wire that carries a large current, and the signal line is a fine wire (optical fiber communication) that does not carry electricity. For example, the signal circuit has a conductor cross-section of 0.3 and 0.5 mm2.
5: in the motor, the implementation of the conductor with a cross-sectional area of 0.85,1.25 mm2, and power supply circuit with a cross-sectional area of 2,3,5 mm2; and special circuits (starter, alternator, engine ground, etc.) 8,10,15,20 mm2 different specifications. The larger the cross-sectional area of the wire, the greater the current capacity. The choice of wire, in addition to considering the electrical performance, but also by the physical performance of the vehicle when the constraints, so its wide range of options. For example, the frequent opening / closing of the car on the car and across the body between the wires should be composed of good bending performance of the wire. In the high temperature of the use of the wire, the general use of insulation and heat resistance of vinyl chloride, polyethylene coated wire. In recent years, weak signal circuit using electromagnetic shielding lines are also increasing.
6: With the increase in the function of the car, the general application of electronic control technology, more and more electrical parts, the wire will be more and more cars on the number of circuits and electricity significantly increased, the wiring harness becomes thicker Heavier. This is a big problem to be solved, how to make a large number of wiring harness in a limited car space how to more effectively rational layout, the car harness to play a greater function, has become a car manufacturing industry problems.
