[fate9834]

Today I was driving on a freeway using DAP steering assist. I noticed that the lane centering function gave me more left and right wiggle than before the 11/2023 update. Then I realized my car was trying mimic the car in front of me within the lane, like if the car in front drifted towards the left edge the my car would move closer to the left edge too.

Wondering if anyone else have also noticed this behavior. I assume it is working as intended (like following the car in front avoiding a pole hole). But IMO it does work as well in North America as that in Germany since a lot more stupid drivers here lol.

[Mattl0806]

Originally Posted by fate9834

Today I was driving on a freeway using DAP steering assist. I noticed that the lane centering function gave me more left and right wiggle than before the 11/2023 update. Then I realized my car was trying mimic the car in front of me within the lane, like if the car in front drifted towards the left edge the my car would move closer to the left edge too.

Wondering if anyone else have also noticed this behavior. I assume it is working as intended (like following the car in front avoiding a pole hole). But IMO it does work as well in North America as that in Germany since a lot more stupid drivers here lol.

Maybe the car in front was also a bmw running its DAP?

[fate9834]

Originally Posted by Mattl0806

Maybe the car in front was also a bmw running its DAP?

haha it wasn't, some old Japanese hatchback. And the driver clearly don't drive very well as the car bounces left to right a lot.

[TurtleBoy]

How fast were you going? Following the vehicle in front has always been a function of Cruise with Steering and Lane control. I think the upper limit was 40mph or so. This is to help when going through construction, around obstacles, etc.

[fate9834]

Originally Posted by TurtleBoy

How fast were you going? Following the vehicle in front has always been a function of Cruise with Steering and Lane control. I think the upper limit was 40mph or so. This is to help when going through construction, around obstacles, etc.

I was going around 80MPH since it's freeway. I too think this is by design and now that you mentioned it, I remember experiencing this behavior before on local road. I just don't remember DAP favoring the front car over true centering at freeway speed.

[TurtleBoy]

Originally Posted by fate9834

I was going around 80MPH since it's freeway. I too think this is by design and now that you mentioned it, I remember experiencing this behavior before on local road. I just don't remember DAP favoring the front car over true centering at freeway speed.

I don't ever remember it happening at higher speeds but will keep an eye on it since I updated to 11/2023 the other week.

[MattAu]

Mine is also like that. And if the car in front change lanes or exit to the right, I feel like the car tries to follow before it corrects itself. This is the case when I am not using the nav or using Waze.

[eluded]

DAP can't even keep the car dead center on a straight road, it's always moving around a bit like a drunk. Any curves, and the car likes to move to the outside edge before it corrects. Often the passenger's notice and yell at my driving, to which I respond, I'm not really driving which does not calm them.

[Marty in NY]

Originally Posted by fate9834

Today I was driving on a freeway using DAP steering assist. I noticed that the lane centering function gave me more left and right wiggle than before the 11/2023 update. Then I realized my car was trying mimic the car in front of me within the lane, like if the car in front drifted towards the left edge the my car would move closer to the left edge too.

Wondering if anyone else have also noticed this behavior. I assume it is working as intended (like following the car in front avoiding a pole hole). But IMO it does work as well in North America as that in Germany since a lot more stupid drivers here lol.

Talking like a parent to a kid.. .. so if the car in front of you jumps off a cliff, are you going to jump too?

Ok, so what iDrive version were you on before going to 11/2023? I'm still on 3/2022.52 and mine does not exhibit that behavior. In fact, there is no wiggle/ping ponging, its dead straight in its lane using DAP.

[LDT]

Originally Posted by Marty in NY

Talking like a parent to a kid.. .. so if the car in front of you jumps off a cliff, are you going to jump too?

Ok, so what iDrive version were you on before going to 11/2023? I'm still on 3/2022.52 and mine does not exhibit that behavior. In fact, there is no wiggle/ping ponging, its dead straight in its lane using DAP.

Agree. Running v 11/2023.42 here and DAP works perfectly.

[fate9834]

Originally Posted by Marty in NY

Talking like a parent to a kid.. .. so if the car in front of you jumps off a cliff, are you going to jump too?

Ok, so what iDrive version were you on before going to 11/2023? I'm still on 3/2022.52 and mine does not exhibit that behavior. In fact, there is no wiggle/ping ponging, its dead straight in its lane using DAP.

Apparently "following the car in front" is just one of the weighted inputs. It shouldn't follow it off a cliff (hopefully). But IMO the weight of other cars is perhaps a bit too heavy. It should respect the lane markings better.

I went from 07/2019 straight to 07/2023 then to 11/2023. I remember 07/2019 has simpler, better lane centering on highway (not following other cars) but cannot pass through local intersections without interruption when losing lane marking. 07/2023 had the following behavior too, handling local intersections better (less interruption when following through intersections) but lane centering was less consistent in general.

[Marty in NY]

Originally Posted by fate9834

Apparently "following the car in front" is just one of the weighted inputs. It shouldn't follow it off a cliff (hopefully). But IMO the weight of other cars is perhaps a bit too heavy. It should respect the lane markings better.

I went from 07/2019 straight to 07/2023 then to 11/2023. I remember 07/2019 has simpler, better lane centering on highway (not following other cars) but cannot pass through local intersections without interruption when losing lane marking. 07/2023 had the following behavior too, handling local intersections better (less interruption when following through intersections) but lane centering was less consistent in general.

I can imagine how difficult it is to program all the permutations needed to do its job and prevent an accident...mind boggling. Following the car ahead of us is sort of ok, till it decides to do something unsafe, ie: drunk driver, construction vehicle, etc and following the lines on the road is also ok, well, till it isn't, ie: construction zones, worn off lines, etc.
While DAP works quite well on mine, I will never trust it 100% but it certainly covers me when I need both hand to open a water bottle, put my sunglasses on, etc. As humans we just need to know when not to do those sort of things, like around curves, in construction zones, etc. I can tell you though that DAP allows me to drive 10+ hours without arm fatigue which I appreciate!

[10101X5]

If you're on Navi route, will DAP take you to your destination similar to Tesla's FSD?

[djohn]

Originally Posted by Marty in NY

I can imagine how difficult it is to program all the permutations needed to do its job and prevent an accident...mind boggling. Following the car ahead of us is sort of ok, till it decides to do something unsafe, ie: drunk driver, construction vehicle, etc and following the lines on the road is also ok, well, till it isn't, ie: construction zones, worn off lines, etc.

My understanding from talking to engineers that work in this area is that autonomous driving tech is primarily a sensor fusion problem. The decision making part can be quite simple (especially for lower levels of autonomy), but fusing together the various inputs is incredibly complex.

[TurtleBoy]

Originally Posted by 10101X5

If you're on Navi route, will DAP take you to your destination similar to Tesla's FSD?

No.

[NOMRW8NG]

Originally Posted by TurtleBoy

No.

No, but if you have the right options turned on, it will slow the car down and tell you to move right (in the US) as you approach your exit.

[5ive7even]

We have a 2024 X5 40i with DAP. Our lane keep while using cruise control is pretty good. I have noticed a tendency to mimic the car in front of me.

On a side note, is there a setting in Idrive 8.5 to have the acc adjust the speed based on the speed limit? If so, is there a way to add a few miles over to the current limit by default?

[TurtleBoy]

Originally Posted by 5ive7even

We have a 2024 X5 40i with DAP. Our lane keep while using cruise control is pretty good. I have noticed a tendency to mimic the car in front of me.

On a side note, is there a setting in Idrive 8.5 to have the acc adjust the speed based on the speed limit? If so, is there a way to add a few miles over to the current limit by default?

In the US there is no way to have it do it automatically but rather hitting the Set button. There are two different addition settings you can use, the standard one and one for under 40mph. Check under driver assistance settings for the Speed Limit.