Why can't the Volkswagen door be locked from the inside?

[OJuliet]

This is a unique safety design by Volkswagen. Except for using the "child lock" to lock the door, there is no other way to lock the door completely. Here is an introduction to the door lock actuator: 1. Introduction: The car door lock actuator is a specialized term, essentially referring to the car door lock controller. 2. Device: It is a control device that provides locking/unlocking pulse current to the door lock actuator. 3. Function: Regardless of the type of door lock actuator, the locking and unlocking of the door are achieved by changing the direction of the current supplied to the actuator, which controls the left and right movement of the linkage. The worm gear fixed on the motor output shaft meshes with the gear, and the inner cavity of the gear meshes with the swing arm. The working principle is: the vehicle's current source supplies power to the motor, the motor's rotation is converted into the swing of the swing arm, thereby completing the opening or closing cycle.