diplomat33
Average guy who loves autonomous vehicles
Thanks for all that!
So, the car cannot distinguish between a green light and a red light. It just knows that there's a light and it will stop unless/until the driver says go. That's not encouraging.
No. The car can detect green and red lights. It shows them on the driver display correctly. But I guess if it is not 99.999999% reliable yet so Tesla is playing it safe by making it stop at all lights just in case it is wrong while they gather more fleet data. But like I said, Tesla will undoubtedly lift this restriction when they get confirmation from fleet data that the feature is reliable enough.
Level 3: I have to be in the driver's seat and awake but I need not pay attention. The car will alert me with a reasonable amount of time (at least half a minute) when I need to take over.
Yes. That sounds about right.
Level 4: I can take a nap in the back seat. The car will pull over safely and stop in a safe place and wake me up if I need to take over.
Yes but I would add one amendment:
L4 can completely take you to your destination while you sleep. It just depends on whether your destination is still in the car's ODD. So for example, Waymo has L4 that is geofenced. If you are traveling within the geofenced area, the L4 can take you to your destination without needing to wake you up.
Of course, what I'd really like is a car that does what a chauffeur would: Take me where I want to go and wake me when we get there.
Again, that could be L4 or L5 depending on the car's ODD.
The current L2 system has even more immediate needs for the driver to take over and has no camera-based driver monitoring.
Yes and I think Tesla should have a driver facing camera system for L2.
L3 specifically does NOT require the driver to be paying attention to the road at all
He just has to be conscious and able to take over eventually (rather than immediately on an L2 situation where he's technically the one actually driving all the time).
So L3 I can be reading a book while the car drives, and if it beeps at me appropriately I can put down my book and prepare to take over. L3 does not require me to be paying attention, at all, to the driving task- just that I be available to take over eventually.
Yes, I know what L3 is. That is why I wrote this:
L3 means that the driver does not need to pay attention in certain conditions but does need to take over when the car requests it.
The driver does need to be able to take over when the car asks them too so what happens if the driver is not able to take over when asked to? How does the car know if the driver is complying with the take over request? Without a driver facing camera, you are relying on just the torque system to detect if the driver really has taken over when requested or not. You can't have a safe L3 if the car asks the driver to take over but has no way of reliably knowing if the driver has complied or not. And yes, I am aware that a L3 car could be programmed to gradually slow down and stop if it thinks that the driver has not responded to a take over request in the allotted time. But without a driver facing camera, the take over process would not be very reliable IMO.
Basically, the driver facing camera plays a different role in L2 and L3. In L2, it monitors that the driver is paying attention to the road during operation. In L3, it does not care if the driver is paying attention to the road during operation but it does check if the driver responds to a takeover request.
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