bak_phy
Member
That was my first thought but wouldn't it be obvious if there was no AP? I mean even before the crash.It was probably an AP2.0 car and the salesman forgot it wasn't activated yet.
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That was my first thought but wouldn't it be obvious if there was no AP? I mean even before the crash.It was probably an AP2.0 car and the salesman forgot it wasn't activated yet.
The car was in autopilot mode. It was accelerating up the hill and he was not steering, but had his hands right near the steering wheel, per instruction.That was my first thought but wouldn't it be obvious if there was no AP? I mean even before the crash.
Not sure why that would be the case. Radars when used in autopilots or adaptive cruise control work basically on the doppler principle to understand if an object is getting closer or further away.
If I drive at 70MPH behind a car doing 70MPH, the radar sees the car in front of me as stationary, it is neither getting further away nor approaching me. The same applies at 50MPH, 20MPH or 0MPH.
The radar would be ignoring stationary vehicles in adjacent lanes, as otherwise it would be emergency braking when passing a vehicle stopped in the emergency lane next to you, it shouldn't ignore anything in your path.
So, unless you are referring to a known engineering issue, a radar would never ignore an object approaching you, it is simply not how a radar works.
Autopilot aside, why wouldn't AEB have prevented the accident in this instance?
What is AEB and how does it affect AP?
That's a huge problem. Other car manufacturers with emergency braking recognize a stationary object and bring the car to a complete stop. Looks like a Tesla fail.It sounds as if you came up over a hill, which means the radar couldn't track the car in front of you. Once you came over the hill and the radar could see the car, it was stationary, and the system doesn't track that.
That's a huge problem. Other car manufacturers with emergency braking recognize a stationary object and bring the car to a complete stop. Looks like a Tesla fail.
Yep, last time I looked when someone claimed something similar, every manual (from BMW to Mercedes to Volvo) says it may not necessarily brake in this situation.Every manual I've seen for one warns that it may not stop for a car in this situation, and my understanding is that Tesla does this better than most others. Do you have information indicating otherwise?
This is exactly the situation that 8.0/8.1 is intended to rectify, once 8.1 goes out.
Can the AEB reducing by 25 mph be adjusted to reduce even more?
That's a huge problem. Other car manufacturers with emergency braking recognize a stationary object and bring the car to a complete stop. Looks like a Tesla fail.
... The salesperson suggested that my friend not brake, letting the system do the work...
... The purpose of this post isn't to assign blame...
... I really am excited about the car and don't want to throw away months of research because of this incident. Tesla needs to address this...
Can the AEB reducing by 25 mph be adjusted to reduce even more?
Can the AEB reducing by 25 mph be adjusted to reduce even more?
One thing not mentioned, but might apply (and help your buying decision) is that there is a dashboard visualization of what the AP system "sees". I would presume in this case the car in front didn't show up in that visualization, which may be a warning that the system didn't detect the stationary car in front.The car was in autopilot mode. It was accelerating up the hill and he was not steering, but had his hands right near the steering wheel, per instruction.
This is related to the parked car and walls problem.on my test drive, on the freeway, we were in AP, and i was testing the lane change capability.. and i purposely put the blinker on when a car was in my blind spot. I had to take over to prevent lane change. Point being, I did not trust the car to not get into an accident, and I would've not listened in this case. My car speed and approach time of the stopped car would've not computed in my head, and I would've played it safe. Especially the first time with AP where my skepticism meter is higher with self driving.
But what I don't get... even with all of the explanations on here, is how an object the size of a car, stopped or not, doesn't alert the TACC to slow down. if it were a wall, would it slow down?
there is a setting where you can adjust the reaction time... early, standard, late.. i think i actually saw that this am while messing with my settings.