Adaptive Cruise Control Feedback

[mpshizzle]

Hmmm... Is this documented somewhere by Ford?
And does this happen only in real-time? As in, as I'm actively fighting the lane centering to hold to one side it should then start trying to maintain what I'm telling it to do? Is there any long-term learning in this?

I've seen lots of people on here say that the car will stay where you place it in the lane, but I have personally never experienced that. In my car it goes where it wants to go.

On occasion, I have noticed that if I get too heavy-handed resting my hand on the steering wheel, it will start to pull to one side and I have to fight it to keep it in the center of the lane, and it won't stay there. The only way I found to make it Center itself again is to completely let go of the steering wheel for a few seconds and eventually it will go back to the middle.

I think this must be some kind of programming to deal with crosswinds

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[Jimbo]

I've seen lots of people on here say that the car will stay where you place it in the lane, but I have personally never experienced that. In my car it goes where it wants to go.

On occasion, I have noticed that if I get too heavy-handed resting my hand on the steering wheel, it will start to pull to one side and I have to fight it to keep it in the center of the lane, and it won't stay there. The only way I found to make it Center itself again is to completely let go of the steering wheel for a few seconds and eventually it will go back to the middle.

I think this must be some kind of programming to deal with crosswinds

Idk if it's to deal with crosswinds, but my experience is the same. Wondering what the magic touch is to make the car change placement in lane instead of it either fighting you back or getting mad at you for trying to correct it and saying "You never agree with me: CANCEL"

 

[Kabish]

Hold the position and count to 12, works for me every time.

As far as the braking goes.. Ya.. the car sucks balls at detecting and braking correctly IMO.. I've tired all the distance settings 4-1 and I don't find it does a dang thing. I can be driving behind a car with it set to 2, set it to 4 still in the exact same position as 2. Set it to 1, still in the same position as 4... Someone tries to slide in between, because I have like 3 car lengths, the car will abruptly brake 99% of the time, the people behind me LOVE IT!!! Other times the car is just like "oh a car" and slows a tad like a normal saine person would do and just lets the gap widen then starts to accelerate again.

I 100% do not trust the system on stopped cars when I'm at speed. Anything above 40mph or so I'll take over control. In fact, if I'm not mistaken, the manual says the car may not detect fully stopped objects. If I see traffic slowing/stopping, I disengage the system, slow down to match and then I'll turn the system back on. The car waits waaaaaaay too long to start braking for my liking.

Nothing will spice up the morning than going 75mph into dead stopped traffic to have your car notice it 50yrds away, try to stop to only have the collision warning go off.. I will admit though, there was one time where I had looked down at something and the traffic in front of me had fully stopped. Car braked pretty hard, collision warning came up, I applied more brake and I stopped about a car length away. Had the system not kicked in, I prob would had hit the guy, so it does work, just waits too long to give the driver confidence its going to stop.

At least this is the experience in my car, I'm sure everyone's could operate differently.

 

[Illinibird]

I use adaptive cruise control on my Acura MDX when we are on a trip and going over 50 MPH (usually at 65 - 70 MPH). The owners manual says it will not work at low speeds. Reading this it sounds like people are using ACC at low speeds in normal traffic on their MME; is this correct? Can I turn it on around town? Sorry if this is a dumb question but in all honesty I haven't used it yet on the Mach E.

 

[dml105]

Nothing will spice up the morning than going 75mph into dead stopped traffic to have your car notice it 50yrds away, try to stop to only have the collision warning go off.. I will admit though, there was one time where I had looked down at something and the traffic in front of me had fully stopped. Car braked pretty hard, collision warning came up, I applied more brake and I stopped about a car length away. Had the system not kicked in, I prob would had hit the guy, so it does work, just waits too long to give the driver confidence its going to stop.

What drive mode are you using? This sounds like it’s behavior in unbridled. The accel/decel is much smoother in whisper.

 

[RickMachE]

I use adaptive cruise control on my Acura MDX when we are on a trip and going over 50 MPH (usually at 65 - 70 MPH). The owners manual says it will not work at low speeds. Reading this it sounds like people are using ACC at low speeds in normal traffic on their MME; is this correct? Can I turn it on around town? Sorry if this is a dumb question but in all honesty I haven't used it yet on the Mach E.

You should read the section of the manual entitled "How Does Adaptive Cruise Control with Stop and Go Work". This feature is designed to be used in traffic, and has limitations that are clearly stated.

Then I'd recommend you spend some time watching the videos that Ford created for the Mach-E. https://www.ford.com/support/vehicle/2021/ford/Mustang Mach-E/how-to-videos/video-library

This video at 2:40 in: https://www.ford.com/support/vehicle/2021/ford/Mustang Mach-E/how-to-videos/video-library/ford-technology/6268515387001/

This video is several years old and not specific to the Mach-E

 

[dano]

I've definitely observe all three you mention pretty regularly. Overall, I like the system, but these are fair criticisms.

Your #3 (pulling into left-turn lane) (to me) seems to be an issue whenever a new lane appears and the lines it's following are widened before the new stripe appears. I notice this with a new left or right lane. The same happens when lanes merge. It's frustrating.

While not in your list, I'd add that I do appreciate that the car responds pretty well to overriding the steering. One thing that could use improvement is how to know when the car has resumed steering control.

 

[Illinibird]

You should read the section of the manual entitled "How Does Adaptive Cruise Control with Stop and Go Work". This feature is designed to be used in traffic, and has limitations that are clearly stated.

Then I'd recommend you spend some time watching the videos that Ford created for the Mach-E. https://www.ford.com/support/vehicle/2021/ford/Mustang Mach-E/how-to-videos/video-library

This video at 2:40 in: https://www.ford.com/support/vehicle/2021/ford/Mustang Mach-E/how-to-videos/video-library/ford-technology/6268515387001/

This video is several years old and not specific to the Mach-E

Thank you for that; I hadn't seen the video. After turning on ACC for Stop and Go and setting the bars for how close to follow it says something about setting the speed. In stop and go you would not need to do that; correct? I can see setting speed on the highway as I do that all the time with my other car. From some of the posts it sounds like the feature doesn't always work. I guess I'm too old fashioned and do things manually at lower speeds so I'll have to give this a try. I've had the car a year this coming April so I guess it's time to try it out. ?

 

[RickMachE]

Thank you for that; I hadn't seen the video. After turning on ACC for Stop and Go and setting the bars for how close to follow it says something about setting the speed. In stop and go you would not need to do that; correct? I can see setting speed on the highway as I do that all the time with my other car. From some of the posts it sounds like the feature doesn't always work. I guess I'm too old fashioned and do things manually at lower speeds so I'll have to give this a try. I've had the car a year this coming April so I guess it's time to try it out. ?

No, not correct. Cruise control of any type requires you to set the speed. States that right in the video.

So, you get on a road that has a speed limit of 70, and set your speed for that, and for a following distance. As cars slow, your car slows. If cars start to creep, your car starts to creep. If they stop, it stops. If it stops for too long, you have to hit resume. As traffic moves again, it speeds up, continuing until it reaches the set speed. This works on a 70mph road, or in your downtown with a 35 mph speed limit.

Since you don't have your car yet, I'd recommend you spend time watch all the videos in the Mach-E section of the website.

 

[Illinibird]

No, not correct. Cruise control of any type requires you to set the speed. States that right in the video.

So, you get on a road that has a speed limit of 70, and set your speed for that, and for a following distance. As cars slow, your car slows. If cars start to creep, your car starts to creep. If they stop, it stops. If it stops for too long, you have to hit resume. As traffic moves again, it speeds up, continuing until it reaches the set speed. This works on a 70mph road, or in your downtown with a 35 mph speed limit.

Since you don't have your car yet, I'd recommend you spend time watch all the videos in the Mach-E section of the website.

I've had the MME nearly a year but haven't used the ACC on it in lower speed traffic (I may have just turned it on once on the highway at 70 MPH to see if it worked). I have watched many videos since October 2020 but missed this one. So to recap, if I'm on a road in town with a speed limit of 45 MPH I'd set ACC to 45? I just want to be sure I'm understanding you correctly.

 

[RickMachE]

I've had the MME nearly a year but haven't used the ACC on it in lower speed traffic (I may have just turned it on once on the highway at 70 MPH to see if it worked). I have watched many videos since October 2020 but missed this one. So to recap, if I'm on a road in town with a speed limit of 45 MPH I'd set ACC to 45? I just want to be sure I'm understanding you correctly.

You would set it to whatever speed you want to go at. That might be 45, might be 50. It works the exact same way as it does on the the highway.

One thing to note - on the highway, you may be comfortable with a certain following distance that you're not comfortable with locally. Also, like the highway, if you're doing the speed limit, and the car way in front of you stops, your vehicle is going to slow and then stop when it senses the other vehicle. In English - if you're doing 45 on a local road, and there's a red light up ahead with a car there, and you wait for your car to brake, it's going to be a lot closer than you might feel comfortable with, and more sudden.

 

[Illinibird]

You would set it to whatever speed you want to go at. That might be 45, might be 50. It works the exact same way as it does on the the highway.

One thing to note - on the highway, you may be comfortable with a certain following distance that you're not comfortable with locally. Also, like the highway, if you're doing the speed limit, and the car way in front of you stops, your vehicle is going to slow and then stop when it senses the other vehicle. In English - if you're doing 45 on a local road, and there's a red light up ahead with a car there, and you wait for your car to brake, it's going to be a lot closer than you might feel comfortable with, and more sudden.

Good point and I probably wouldn’t be comfortable in that scenario.

 

[RickMachE]

Good point and I probably wouldn’t be comfortable in that scenario.

I love Stop and Go. As to being comfortable, you have the ability to make your own decisions using the brake pedal. That disengages Cruise Control. I'm not comfortable going from 45 to zero either. But I love sitting at a light, setting my Cruise on 45, and then hitting the button to come up to speed and maintain distance.

 

[Woeo]

I don't know how far ahead the car sees,

When an image of the rear half of a vehicle appears on the screen above the blue bubble (or above the blue semi-circle) the car is “seeing” a car in front of you. This image is of a MME using BlueCruise but it works the same with ACC.

 

[Neil4Real]

I've seen lots of people on here say that the car will stay where you place it in the lane, but I have personally never experienced that. In my car it goes where it wants to go.

On occasion, I have noticed that if I get too heavy-handed resting my hand on the steering wheel, it will start to pull to one side and I have to fight it to keep it in the center of the lane, and it won't stay there. The only way I found to make it Center itself again is to completely let go of the steering wheel for a few seconds and eventually it will go back to the middle.

I think this must be some kind of programming to deal with crosswinds

On my Premium, I had lane centering set to aggressive, or whatever the max setting is, and it would always pull to either side of the lane very hard. On my GT PE, I left it on normal and it lane centers wayyy better. Not sure if it also just got updates that fixed this, but you should look at that and see what your setting is on.

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