Speed sensing door lock feature

[oj88]

a simple timer should work. it need not be connected to the car's computer.
alas, i do not know who has this simple timer.
some toyotas have one.
perhaps some gimmick tinkerer can do the transplant?

First time I've heard of this. How does it work?

I know that timers are used to re-lock/re-arm the vehicle after about 20-30 seconds it was unlocked with the key fob (and only if none of the doors were opened). But I've seen nothing about an auto-lock feature that relied on timers while the vehicle is occupied, running or moving.