Grounding is a prerequisite for the normal operation of the internal circuits of the car and the on-board electronic system. The quality of the ground has a significant impact on the automotive electronic system and affects the electromagnetic compatibility of the vehicle. A good grounding environment can effectively balance the battery capacity of the vehicle, and can also effectively suppress electromagnetic interference and the tolerance of anti-interference ability. The grounding technology in wiring harness design is very important for the electronic system of the whole vehicle.
When performing grounding, it is necessary to conduct a reasonable grounding design analysis based on its functions, attributes, and characteristics, so as to ensure the normal operation of the electronic system. For example, some current-sensitive electronic components, sensors, etc. need to be grounded in a separate environment. Control parts also need to be grounded in different ways to avoid interference between different signals. In the process of grounding important driving components such as generators and transmissions, it is necessary to be cautious and achieve correct design, so as to ensure the stability of the driving environment. The arrangement of the grounding points on the vehicle body should not be too dense, and a certain distance should be kept to avoid burning of the line connections caused by the aging of the insulation layer.