1：What is it used for?
Electric power-closing doors automatically close the door when it is not fully shut, avoiding safety hazards caused by improperly closed doors.
2：Advantages
The doors are heavy, but even passengers with less strength can close them easily.
When hands are occupied and one needs to close the door using the shoulder or body, no force is required. Simply leaning on the door will suffice.
3：Common misconception
It is not a complete electric closing system. The door needs to be almost closed for the automatic suction to engage.
4：Did you know?
Some vehicle models also feature electric power-closing rear tailgates.
5：Technical principle
Electric power-closing doors work by controlling the closure of the door through the switching of power supply. When power is supplied, a magnetic force is generated, causing the door to close. When the power is cut off, the magnetic force disappears, allowing the door to open. Electromagnetic coils are installed on the door frame (or door panel edges). When the door is open, an electric current flows through the coils, creating an electromagnetic field. Due to the magnetic force, when the door is close to the door frame, it will be automatically drawn shut.
