What is the Function of Central Locking?

[AdrianaLee]

Central locking, short for central control door lock, is an automotive accessory that allows doors to be locked and unlocked remotely without inserting a key into the lock cylinder. It consists of a door lock switch, an actuator, and a controller. Functions of Central Locking: Central Control: When the driver locks the door beside them, all other doors are simultaneously locked. The driver can unlock all doors at once using the door lock switch or open a specific door individually. Speed Control: When the vehicle reaches a certain speed, all doors automatically lock to prevent passengers from accidentally opening the doors by operating the door handles. Individual Control: In addition to the driver's door, separate spring lock switches are installed on other doors, allowing independent control over the locking and unlocking of each door. Principle of Central Locking: A weak radio wave is emitted from the vicinity of the vehicle owner, received by the car's antenna. The electronic control unit (ECU) identifies the signal code, and the system's actuator (motor or electromagnetic coil) executes the locking or unlocking action.