Adaptive cruise control is dangerous

stoopid

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Sadly, the radars aren’t very good at detecting stationary objects, as others have explained. I’m surprised and don’t understand why this is, but vision isn’t any better - just watch some Tesla crash videos. Perhaps LIDAR is better at detecting stationary objects?
Lidar is, it can also peer through fog fairly well. But even Lidar has specific limitations. None of these technologies are enough in and of themselves, and even if all combined into a single system they still have 'blind spots' in their performance/ability to 'drive'.
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stoopid

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There's a difference between slow and intolerant. My posts have essentially been the same from the start, I remain critical of these flaws in the car's system and stand by it.
Your posts have evolved, as you've been corrected (in the original thread, AND again here) and unreasonable expectations quelched. But you do you, just know that members here care enough to actually read the words you post. If you just want to gripe, contact Ford(?). Complaining here moves the needle not in getting any problems fixed.

Options as I see them for you:

1) If it's a specific technical failing with your car, get warranty support from Ford.
2) Contact Ford customer service about erratic and unsafe function of the driver assist systems in your car, whose symptoms seem consistent with other owners complaints [can even cite posts on this forum or reddit in your contact with Ford].
3) Scream into the dark hole of the intrawebs.

Your original failing to understand and acknowledge the shortcoming of the tech, and your lack of understanding of your best course for action to a solution, most certainly isn't making a contrary case for being (deliberately) obtuse. If you are 'fast' (ie -- "...not slow"), then move on with getting your problem fixed.
 
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raijinmach

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Your posts have evolved, as you've been corrected (in the original thread, AND again here) and unreasonable expectations quelched. But you do you, just know that members here care enough to actually read the words you post. If you just want to gripe, contact Ford(?). Complaining here moves the needle not in getting any problems fixed.
I gather data here, then complain to ford. I'm not sure what you mean by "evolving" but no, I am not copy and pasting my original comments over and over. In that case, yours have "evolved" too, but I don't get the point of bringing that up.
 

MacherAWD

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My posts have essentially been the same from the start, I remain critical of these flaws in the car's system and stand by it.
Its important to also realize these flaws exist in every other car manufacturer's system. The Ford system seems to be one of the safest on the road. The Ford system is likely better than the average driver but not perfect.
 

raijinmach

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Its important to also realize these flaws exist in every other car manufacturer's system. The Ford system seems to be one of the safest on the road. The Ford system is likely better than the average driver but not perfect.
Yes but this is a Ford forum. I never once said in any of my posts that X car is better.
 


stoopid

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Its important to also realize these flaws exist in every other car manufacturer's system. The Ford system seems to be one of the safest on the road. The Ford system is likely better than the average driver but not perfect.
This is my understanding as well, for being an entry level (budget) safety solution it's as good as Subaru, Kia/Hyundai, etc.
 

stoopid

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Yes but this is a Ford forum. I never once said in any of my posts that X car is better.
The point is that all these systems, by all car makers, are flawed to varying and specific degrees. The underlying point, again (again?), you aren't grasping that underpins this entire topic: NO driver assist tech can/should be 100% trusted.
 

raijinmach

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The point is that all these systems, by all car makers, are flawed to varying and specific degrees. The underlying point, again (again?), you aren't grasping that underpins this entire topic.
I think you're misunderstanding the point of this thread and my thread. It was never a comparison to other manufacturers. It was just highlighting that it can be dangerous. Just because everyone else is dangerous, it doesn't mean it's not worthwhile to bring it up. That's like saying we shouldn't talk about gun violence because we know guns are violent? Please stop this tirade
 

devmach-e

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lol I don't know why some of you are taking offense to this and trying to be subtle about being offensive. It's just a car, relax. All I'm saying is my expectations for ACC was not met. I wasn't expecting to be able to fall asleep at the wheel but I was expecting the car to warn me when it was no longer capable of driving itself, especially when it was about to collide with a cement barrier. But if your answer is, "it only keeps track of the lanes, not giant objects that could kill you" then I now understand what ACC is and is not capable of.

Oh and before anyone accuses me of being a Tesla spy again (which is a very strange delusion on this forum), I will never ever get a Tesla unless their current CEO steps down.
ACC is not BlueCruise. ACC is not lane keeping. ACC merely keeps a set speed and will automatically adjust speed if there is a car in front of you. What you seem to be describing is something akin to lane keeping failing you, not ACC itself.
 

raijinmach

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ACC is not BlueCruise. ACC is not lane keeping. ACC merely keeps a set speed and will automatically adjust speed if there is a car in front of you. What you seem to be describing is something akin to lane keeping failing you, not ACC itself.
Sure, replace all my references to ACC with lane keeping assist then. I'm not sure what that accomplishes in my discussion.
 

devmach-e

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Sure, replace all my references to ACC with lane keeping assist then. I'm not sure what that accomplishes in my discussion.
Lane keeping assist is also not meant as a substitute for BC Handsfree. You are using the wrong tool for the wrong job it sounds like. Or your expectations are not inline with what LKA is capable of.
 

raijinmach

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Lane keeping assist is also not meant as a substitute for BC Handsfree. You are using the wrong tool for the wrong job it sounds like. Or your expectations are not inline with what LKA is capable of.
I'm not re-hashing this out with someone else. You're too late to the game. I never once complained about not being able to drive hands-free with LKA.
 

devmach-e

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I'm not re-hashing this out with someone else. You're too late to the game. I never once complained about not being able to drive hands-free with LKA.
It is hard to keep up when you use two completely different technologies interchangeably. ACC is not LKA. LKA is not ACC. The two of them used in conjunction with a divided multi-lane highway that has been extensively mapped is what gives you BC HF. Sounds like you weren’t using LKA for it’s intended purpose when you had your concrete barrier issues.
 

raijinmach

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It is hard to keep up when you use two completely different technologies interchangeably. ACC is not LKA. LKA is not ACC. The two of them used in conjunction with a divided multi-lane highway that has been extensively mapped is what gives you BC HF. Sounds like you weren’t using LKA for it’s intended purpose when you had your concrete barrier issues.
I did say to replace my posts referencing ACC with LKA now that I know there is a difference. I meant LKA the entire time. I was using it properly but if detecting a concrete barrier is not within its capabilities, then there is nothing more to say - it simply was not doing what I expected it to do and if it can't, that's the way it is. But as I said before, you're jumping into this discussion mid-way so that is contributing to your confusion and I'd rather not re-hash it all over again.

Point being: LKA is not in line with my expectations which I consider dangerous at times. My opinion, you're welcome to take it or leave it.
 

A-A-Ron

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Sadly, the radars aren’t very good at detecting stationary objects
Radar is great at detecting stationary objects. Now - figuring out if a stationary object is on the side of the road, in the middle of the road, or the road itself is a much harder (and costlier) task.

Since the vast majority of radar returns are stationary (roads, signs, overpasses, walls, trees, lane marking reflectors, etc.) - the cheapest way to address it is to throw out everything moving slower than some slow speed (around 7mph in most cars). Unfortunately, it throws out objects that aren't moving in your lane, but since it's only L2 ADAS and the driver is supposed to be paying attention - Ford doesn't have to worry about the car not seeing stopped objects.
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