The electric pull in door is the use of electromagnetic force to completely close and lock the nearly closed door. Generally, only luxury cars are equipped with electric pull in doors, such as Mercedes Benz S-Class, BMW 7-Series, Audi A8, etc.
Chinese name
Electric closing door
Advantages
It doesn't have to be very powerful when closing the door
Features
Increases comfort and makes movements more elegant
The automatic soft door closing system, namely the electric pull in door, can gently close the door. This technology is designed to meet those car owners who do not want to see their car doors fall.The R&D concept behind the technology is simple: just close any door lightly, the system will automatically take over the rest of the work without any noise.[1]
working principle
Announce
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Electric closing door: also called magnetic closing door.The closing of the door is mainly controlled by the power supply.Power on to generate magnetic force, and the door is closed.When the power is cut off, the magnetic force disappears and the door opens.An electromagnetic coil is installed on the door frame (or the edge of the door panel). When the door is opened, there will be current in the coil, which will form an electromagnetic field. In this way, because of the magnetic force, when the door is closed close to the door frame, the door will be automatically attracted.
The two key points of the electric pull in door are the sensor and the motor.Whenever the door is closed, as long as the action is not too violent, the sensor can detect it.For example, when the door is half closed (about 6mm from the door lock), the sensor will detect this situation.
The sensor can detect the intention of closing the door. Once the door lock locks the handle, the motor (installed on each door, including the trunk) will open.The main task of the motor is to pull and close the door firmly without any noise.
