Huh! Autolocking behavior has bothered me for as long as I remember seeing it, and I’d love to believe that it improves safety against crashes (rather than notional “bad guys trying to open the door on your journey” or something). It’s only ever inconvenienced me, never helped.
I’m having trouble finding more formal explanations for what you’re describing, though. I see a lot of talk about how the latching behavior links the door’s steel into the rest of the body, but very little about the structural aspects of the locks that link the handles to the latch’s release mechanism.
I’m the farthest thing from a car engineer, but I wonder if you’d know of anyplace I could read more about this structural aspect of locking design? Every time I accidentally lock out a passenger, I get frustrated: I’d find grace and patience easier to muster if I understood how someday it might save both our lives :)
I am also not a car engineer, but from my reading of "Federal Motor Vehicle Safety Standards; Door Locks and Door Retention Components" [1] it is the latching that is meant to prevent the door opening, not the locks. However, even many modern cars have a mechanical linkage from the handle to the door. In a crash the mechanical linkage, particularly older style tension-type linkages, could unlatch the door when your body hit the door from the inside and physically moved the linkage [2]. A lot of doors use electric actuators now [3], and linkages are much better designed, but it seems like it could still be an issue, in theory.
I’m having trouble finding more formal explanations for what you’re describing, though. I see a lot of talk about how the latching behavior links the door’s steel into the rest of the body, but very little about the structural aspects of the locks that link the handles to the latch’s release mechanism.
I’m the farthest thing from a car engineer, but I wonder if you’d know of anyplace I could read more about this structural aspect of locking design? Every time I accidentally lock out a passenger, I get frustrated: I’d find grace and patience easier to muster if I understood how someday it might save both our lives :)