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What happens in FSD when a crash avoidance is needed?

skinzy

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I've been curious to understand what happens when driving in FSD and emergency object avoidance is needed. Does the FSD kick off and the driver takes over or will FSD perform emergency maneuvers? Anyone have insight or experience into this?
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HaulingAss

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I've been curious to understand what happens when driving in FSD and emergency object avoidance is needed. Does the FSD kick off and the driver takes over or will FSD perform emergency maneuvers? Anyone have insight or experience into this?
It will perform emergency manuevers if you let it. If you take over, then it lets you take over.
 
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I've been curious to understand what happens when driving in FSD and emergency object avoidance is needed. Does the FSD kick off and the driver takes over or will FSD perform emergency maneuvers? Anyone have insight or experience into this?
Automatic Emergency Braking is still active when using FSD.
 

Crissa

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Who does a better job?
Varies.

It will never 'kick off' - it will attempt an avoidance maneuver. The assistive collision detection is separate and may trigger on its own (and may interrupt FSD).

But it's up to you, as the captain of the ship, to make sure no collision occurs.

-Crissa

PS, if FSD doesn't think it's a hazard (like boxes or animals too small/fast to effectively dodge) or it doesn't think it can avoid the collision, it won't. We've never seen it steer into an object it recognizes to avoid hitting something, either - but sometimes that's the better choice (like hitting an aggressive driver vs hitting the median).
 


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Who does a better job?
At the moment that's not a clearly defined answer. In some situations FSD will be better (cross traffic issues), in others you will be faster to react. In the near future it's expected FSD will be faster 100% of the time.
 
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skinzy

skinzy

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From Chat GPT;

"FSD can react to many emergency situations but isn’t as reliable as a human driver for complex evasive maneuvers. It works best with clear lane markings and predictable traffic but struggles with sudden, highly dynamic hazards. Tesla continues to improve it, but it’s not a replacement for an attentive driver."
 

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I've often wondered about this, but I have not let it play out 100 percent. I love my car too much. I was in town yesterday on a 4 lane road when a truck directly to my left decided to come into my lane. I could see it before FSD reacted (and he was over the line at this point). I swerved to the right and slammed on the brakes. Knowing there was a car somewhere behind me also, I immediately goosed it when I was clear of the truck. I then had time to check my rearview and saw that other car was pretty far back and I probably didn't have to goose it after all. Ya, pretty complex maneuver, and I would love to really see how FSD would have handled it if I had let it play out.
 

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I've been curious to understand what happens when driving in FSD and emergency object avoidance is needed. Does the FSD kick off and the driver takes over or will FSD perform emergency maneuvers? Anyone have insight or experience into this?
Simply put, "it depends"

FSD will do some, AEB will do some.
And there are possibly times when FSD will red screen for the driver to take over.

There are just too many situations to be definitive.
 


REM

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There have been more instances where FSD avoided a collision than when it didn't.

But with every complex topic "it depends".
 

Sarge23060

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Varies.

It will never 'kick off' - it will attempt an avoidance maneuver. The assistive collision detection is separate and may trigger on its own (and may interrupt FSD).

But it's up to you, as the captain of the ship, to make sure no collision occurs.

-Crissa

PS, if FSD doesn't think it's a hazard (like boxes or animals too small/fast to effectively dodge) or it doesn't think it can avoid the collision, it won't. We've never seen it steer into an object it recognizes to avoid hitting something, either - but sometimes that's the better choice (like hitting an aggressive driver vs hitting the median).
Mine steered into a line of large traffic cones to avoid getting sideswiped by an 18-wheeler during a merge when the truck driver didn't see me. Good choice.
 

Crissa

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From Chat GPT;

"FSD can react to many emergency situations but isn’t as reliable as a human driver for complex evasive maneuvers. It works best with clear lane markings and predictable traffic but struggles with sudden, highly dynamic hazards. Tesla continues to improve it, but it’s not a replacement for an attentive driver."
Chat GPT wouldn't know any better than we would.

In fact. It only knows things, because we posted it, like our discussion here.

It's otherwise just matching words together that are grammatically correct. 'Hot air' or 'talking out of its hat', so to speak. It is not a reliable source of facts.

-Crissa
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