Method and system for controlling double door locks

Abstract

The invention provides a method and a system for controlling double door locks. The method includes: detecting whether or not a first door lock and a second door lock are locked synchronously within a preset first time interval when the situation that the first door lock is at a secondary lock position is detected; when the situation that the first door lock and the second door lock are at the secondary lock position simultaneously is detected, respectively controlling the first door lock and the second door lock to move to a primary lock position from the secondary lock position according to a determined PWM (pulse-width modulation) duty ratio; judging whether or not the first door lock and the second door lock are at the primary position simultaneously within a preset second time interval; when the first door lock and the second door lock fail to be at the primary lock position simultaneously, controlling the first door lock and the second door lock to stop locking, so that damage to a rear door and a body of an automobile due to asynchronous locking of the double door locks and excessively high locking motor voltage can be reduced.

Description

technical field [0001] The present invention relates to the technical field of door lock control, and more specifically, relates to a double door lock control method and system. Background technique [0002] At present, the electric tailgate of automobiles is generally locked by double door locks. The double door locks include a first door lock and a second door lock. The first door lock and the second door lock are respectively installed on the left and right sides of the rear tailgate. The principle of the lock is that when the door motor drives the door to the closed position, the lock bolt first enters the secondary lock position. The turn or return spring pulls the drive mechanism back to its normal position. [0003] The inventor found through research that due to the design and installation errors of the door lock or the distortion and deformation of the rear tailgate itself, the first door lock and the second door lock will be asymmetrical. During the locking proces...

AI Technical Summary

Problems solved by technology

[0003] The inventor found through research that due to the design and installation errors of the door lock or the distortion and deformation of the rear tailgate itself, the first door lock and the second door lock will be asymmetrical. During the locking process, the first door lock and the second door lock will be asymmetrical The second door lock may be locked out of synchronization. If the first door lock and the second door lock are out of synchronization, it will cause certain damage to the rear tailgate and body of the car, and the lock motor will When the voltage at both ends is high, the damage to the car will be more serious due to the fast speed of the locking motor

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