Why the MME advanced cruise control system is not reacting on stationary objects ahead?

[Rt1AWD]

Now, having said that, I'm not sure what the problem is. I've used (hands-on) BlueCruise on city streets, and while the braking is not the smoothest, it does stop for traffic stopped ahead, so I think OP can be assured that the car won't plow into stopped traffic.

In my case it does about 50% of the time. I have to take control all the time when approaching the crossing with cars waiting the traffic light.

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[Rt1AWD]

I've changed the title only because nobody was killed and I've never tested it to the point of emergency break.

 

[Rt1AWD]

Cruise control is for tracking your cruise speed with a traveling vehicle in front of you. It's not designed to track obstacles or stopped vehicles that you're approaching. That's why you're expected to be paying attention.

I understand that. And I would completely understand if the car gets confused in some weird situation and does not act appropriately
But I am talking about a very straightforward situation:
The MME is on ACC. There is something (let's say another car standing1) on the road quite far away. And while approaching MME ignores it like it does not exist at all

 

[kltye]

No, it is the car's speed.

I had to re-read the sentence several times, and I think it’s not very clearly constructed. But I suppose referring to the car’s speed makes a bit more sense.

 

[kltye]

In my case it does about 50% of the time. I have to take control all the time when approaching the crossing with cars waiting the traffic light.

I think you’re just assuming it won’t brake in time… It does get a bit disconcerting, I agree, but it definitely stops for cars waiting at a light.

Also, image recognition is only for speed signs (at least right now). I doubt we have enough onboard processing power to do arbitrary object recognition.

 

[RickMachE]

I understand that. And I would completely understand if the car gets confused in some weird situation and does not act appropriately
But I am talking about a very straightforward situation:
The MME is on ACC. There is something (let's say another car standing1) on the road quite far away. And while approaching MME ignores it like it does not exist at all

No. Not correct. Unless the Mach-E is doing 6 miles an hour or less, it will see the car not moving. People have posted this many times. It will slow very rapidly, but it will.

 

[alexgorod]

But I am talking about a very straightforward situation:
The MME is on ACC. There is something (let's say another car standing1) on the road quite far away. And while approaching MME ignores it like it does not exist at all

It works differently (and the way you expect it to work) for me - ACC slows down when approaching a standing car in my lane, let's say at a red light.

It starts to slow down later, and more aggressively than I would. But it does.

 

[Blue highway]

I don't see a reason why it can't detect a stationary car in front. It has a radar and image recognition - i don't understand what is the problem.

ok... here is the reason. If the car stopped for stationary objects... it would slam on the brakes for road signs and overpasses. They are highly reflective of radar. False positives for autonomous braking are a real problem unless there is a minimum motion threshold.

 

[Blue highway]

I understand that. And I would completely understand if the car gets confused in some weird situation and does not act appropriately
But I am talking about a very straightforward situation:
The MME is on ACC. There is something (let's say another car standing1) on the road quite far away. And while approaching MME ignores it like it does not exist at all

because without a minimum motion threshold the car would slam on the brakes at any road sign or overpass.

 

[Scooby24]

I understand that. And I would completely understand if the car gets confused in some weird situation and does not act appropriately
But I am talking about a very straightforward situation:
The MME is on ACC. There is something (let's say another car standing1) on the road quite far away. And while approaching MME ignores it like it does not exist at all

Because it's not designed to be a collision avoidance system. It's an adaptive cruise system.

 

[Rt1AWD]

I think you’re just assuming it won’t brake in time… It does get a bit disconcerting, I agree, but it definitely stops for cars waiting at a light.

Also, image recognition is only for speed signs (at least right now). I doubt we have enough onboard processing power to do arbitrary object recognition.

I believe image recognition also participates in
- detecting the lane edges
- at night recognizing presence of cars ahead
- Recognizing the cars in front. (that is my assumption that is based on the fact that when I'm approaching that drives on my lane in the same direction ahead of me it appears on the front screen when it is still to far to be sensed by radars)

However when I approach a stationary car it does not appear on the front screen even at the point when it is close enough for a radar.

That is why I'm a little puzzled and confused.

 

[Rt1AWD]

No. Not correct. Unless the Mach-E is doing 6 miles an hour or less, it will see the car not moving. People have posted this many times. It will slow very rapidly, but it will.

That is the point. It does see the car ahead all the time on the highway. But as for stationary cars ahead it detects them about half of the times

 

[newmme]

Wait until someone in a car/tow truck/police have their vehicle not completely on the shoulder, and hanging out into the lane. The MME like any other car will smash into it. The media/NHTSB will be all over the MME like other ADAS systems. All ADAS owners manuals warn it will crash into something hanging out into the lane.

Here is one example. It will be the MME's fault, not the inattentive driver unfortunately.

ADAS Crash into police car

 

[kltye]

I believe image recognition also participates in
- detecting the lane edges
- at night recognizing presence of cars ahead
- Recognizing the cars in front. (that is my assumption that is based on the fact that when I'm approaching that drives on my lane in the same direction ahead of me it appears on the front screen when it is still to far to be sensed by radars)

However when I approach a stationary car it does not appear on the front screen even at the point when it is close enough for a radar.

That is why I'm a little puzzled and confused.

You're absolutely right about the lane lines, but I highly, highly doubt it does the others (especially the night one - why would an optical camera work better at night than the day?). The radar has pretty good range, IIRC, so it can definitely pick up an obstacle ahead such as when a car switches to your lane.

The processing capability for real-time object detection still isn't particularly trivial, and requires a substantial training set. I see none of that being referenced anywhere from Ford.

 

[Scooby24]

Fitting...

https://fordauthority.com/2022/04/new-car-owners-fail-to-fully-grasp-adaptive-cruise-control-study/

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