Power door locking system and method of operation

摘要

An automotive locking system for an automotive vehicle has a latch (16) with a locked and unlocked position, a switch (14) having a first state and a second state and a timer (22). A controller (18) is connected to the switch (14), the latch (16) and the timer (22). The controller (18) positions the latch (16) of a door in the unlocked position if the duration the switch is in the first and second states corresponds to a valid switch signal rather than electrical noise or a shorted switch. The system may also control unlatching all the doors if the switch changes between the first and second states for predetermined durations of each state.