FSDtester#1
Craves Electrolytes
Those are where Oscar the Grouch and family live. VRU's...Thanks. But then that makes me wonder why it did, in a couple of places.
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Those are where Oscar the Grouch and family live. VRU's...Thanks. But then that makes me wonder why it did, in a couple of places.
Any chance it was highways and V11 was in control? Or going really slowly and the parking program was doing the visualizations (I don't use that so don't know if it draws such things while searching for a parking spot.)Thanks. But then that makes me wonder why it did, in a couple of places.
I've had a number, probably less than four, over the past few weeks on 12.x. Usually it's for no discernible reason, but I'll get the "Take Over Now!" with the red hands on the display. No strikes; just FSD losing its way.TESLA PANIC MODE
Have you seen one? I experienced one today. I was on the tollway at rush hour, on the second lane from right. Up ahead was my exit, and the traffic was crawling ~15mph. In a quarter mile I was expecting FSD to switch to the rightmost lane to take the exit. I was just staring ahead when the steering started twitching left to right, and right to left 5 degrees. I was shocked. Then I looked at the right lane(the exit lane) and there were two cars that were literally fighting to be the one ahead in the lane side by side in the same lane. As soon as they figured out their sh$t, the panic attack stopped.
Holy Moly!
As described, no.It's a pretty slick move, really.
I have this happen all the time at one particular spot. Can't decide which lane to be in at a UPL, just gives up, no warning, car coasting slow.Ok, I have had FSD for over a year. This past week was the first time this has ever happened and I had it happen again today and wanted to ask about it.
I was on a straight two lane road, no other cars are close and I get a warning noise for a 4-5 seconds. A little panic from me for a second like "what was going on" and then it just stops.
I get the warning noise with no visual indicators (no blue flashing, no "take over now w/ hands on the wheel", no red car in front of mine for being too close, etc) and wanted to ask if anyone else has had this happen on 12.3.4??
Very strange as I am always watching the road and car behavior closely and every warning is obvious and generally makes sense with it being overly cautious. This recent event now happening twice with no reason for a warning noise is VERY unsettling in the moment with no indicators.
Thoughts?
I had no idea humans were that slow. 1.5 seconds is an eternity."Human Reaction Time in Emergency Situations
October 1, 2021
Reaction Time For Simple Tasks:
Reaction time is defined simply as the time between a stimulus and a response. Human reaction time is sometimes quoted as a constant number: 0.2 seconds. While 0.2 seconds may be the average measured for simple tasks, reaction time is actually more complex.
Reaction Time For Complex Tasks:
For more complex tasks such as emergency braking, human reaction time has been studied and measured as three different phases: the time to perceive or sense a danger or hazard (perception phase), the time to make a response decision (decision phase), and the time to respond (response phase). The response phase (i.e. braking) is further complicated by the physical response (i.e. apply the brakes with the foot) and the system response (i.e. the time the vehicle’s braking system requires to actually apply braking force to the wheels). Under ideal driving conditions, the entire human perception reaction time for braking has been measured to be approximately 1.5 seconds (R. Limpert)."
Note that is ideal conditions, it can be worse if you are distracted, tired, drunk, hungry, dehydrated, etc
Often humans are braking before any braking occurs (negative reaction time).I had no idea humans were that slow. 1.5 seconds is an eternity.
A kid running out into the street from behind a parked car.So what's an accident that can be avoided by that eternally vigilant computer with 50 ms reaction times, but not 500 ms reaction times? (Assuming that FSD is that delayed)
I would argue than in about 60%-80% (arbitrary) of those cases, humans would see the child's feet from a great distance away (has to be for the angles to work), before the child emerges. And then would ensure there is no close call.A kid running out into the street from behind a parked car.
In a similar situation, for me FSD saw the other car moving into the lane we were moving into, and swerved back into it's original lane. In your case, if the other guy was also on FSD, I bet FSD would have steered your both away, back to where you started. But trying that is something for a test track.... I suspect Tesla simulates such situations in their training data, rather than relying on us to supply enough real world examples. There are plenty of NHTSA reports of serious accident on which to base simulations for teaching FSD how to survive them.The v11 highway stack isn't that great. I had a scenario where fsd was changing into another lane when another car from the other side was getting into the same lane and if I hadn't disengaged, my car would have hit the other car which was another Tesla. Not sure if the other Tesla was using fsd or not.
Ah, that's much better. I knew it wasn't 1.5 seconds.Often humans are braking before any braking occurs (negative reaction time).
You’re thinking 1.5 seconds is reaction time somehow (what is being discussed).
Fortunately the perception cycle which may last 1.5 seconds often starts well before anything happens, so in many situations this leads to negative reaction time.
In worst-case situations of sudden hazards the 1.5 seconds might happen.
Compare to FSD which seems to have extremely limited ability to perceive and just has reaction, which seems to be clocked currently at 0.35s.
Check the possum video, for example (frame where timing began linked).I did not time that but in my bleary eyed (I have night vision problems) and distracted state you can see my reaction time was similar to FSD.It took 1 second for me to react (watch the brake pedal) in my compromised vision-impaired state, which is coincidentally the same as FSD (observe regen bar - note the path planner did not fully reflect the braking of the car in this case). (I would beat it handily in the daytime, assuming I saw the hazard.) And that is kind of a “sudden hazard” case.
My pedestrian case seems to have made the Dan O'Downer highlight reel. A dubious honor. I'm sad that he did not feature the Awesome Possum.
In a similar situation, for me FSD saw the other car moving into the lane we were moving into, and swerved back into it's original lane. In your case, if the other guy was also on FSD, I bet FSD would have steered your both away, back to where you started. But trying that is something for a test track.... I suspect Tesla simulates such situations in their training data, rather than relying on us to supply enough real world examples. There are plenty of NHTSA reports of serious accident on which to base simulations for teaching FSD how to survive them.