The present invention provides a vehicle door lock
system, including an upper lock, a middle lock, a lower lock, a first
actuator, a second
actuator, a rear lock and a limit lock, wherein the upper lock is arranged at the upper part of the vehicle door, the middle lock is arranged at the middle part of the vehicle door, and the lower lock is arranged at the lower part of the vehicle door. An upper lock release wire is arranged between the upper lock and the middle lock, a middle lock door closing wire is arranged between the middle lock and the first
actuator, a lower lock release wire is arranged between the lower lock and the middle lock, and an inner release wire is also arranged on the middle lock. Through the cooperation of the first actuator, the upper lock, the middle lock, the lower lock and the rear door lock, the front and rear
doors can be opened and closed in any order, which greatly improves the convenience and comfort of entering and exiting the vehicle, and two
system options can be provided, namely a mechanical version and an electric + mechanical version. No matter which
system is used, the vehicle door can be easily opened in an emergency, which improves comfort, practicality and safety.