Case: The wiper power cord runs in the same direction as a Hall sensor wiring harness, and the interference pulses generated when the wiper motor is braking with energy consumption is coupled to the sensor power cord, causing the sensor power cord to be disturbed and the sensor signal to be lost.
Weak signal lines such as sensors are not routed in parallel with the power lines and ground lines of high-power inductive loads, and similar designs must be advanced to the vehicle topology design stage.
● Minimize the parallel wiring of weak signal lines with power lines and ground lines of high-power inductive loads. If it is unavoidable, it is necessary to enhance the anti-interference ability of weak signal electrical appliances.
● The high-voltage line and the low-voltage line should be arranged separately, and should be arranged vertically and intersected as much as possible when they must be close to each other.
● Reduce the winding of power cords and grounding wires, and all electrical components are powered and grounded nearby. Except for special cases, the system must share the ground, such as the camera ground back to the internal grounding of the host.