Lane Centering Pulls To Right

[scott_77]

I experience similar behavior. Daily highway driver. BlueCruise Trial centered remarkably well - and when I approached rigs on my right it'd go left in the lane. Once BC trial ended and I started using lane centering with ACC -- I noticed this immediately. It certainly favors the right line which is the opposite I want on highway if I am in the left lane. So I, too, disable it when traffic is around me (especially when semis are on my right) - would be a nice feature add to allow us a setting to set the position in the lane...

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[kennelh]

I've got 2021 Job 1 and when we got BC 1.0 it definitely pulled to the right. The upgrade to BC 1.3 seemed to lessen this but not fully fix it. Later I noticed if we drove in the center or left lane of highway it didn't pull right as much (I could literally see this). It's possible it's actually centering since I'm biased. My thought is perhaps the camera system recognizes the solid line on the right side, and so assume it's better to drift to that side there's no vehicles there?

 

[Mach-Lee]

So in my 4 plus years of owning and driving my car, it will move right to get its reference then center. If you try to fight it it will continue to pull to right. I never turn mine on when I am next to someone. I suggest you try letting it go right to the line with no one around and see if it automatically moves to center.

Yes there is a bug in the software of BlueCruise 1.3 and earlier where the power steering will treat your continued input as a pull drift compensation error, and erroneously increase counter-steering torque with time. This will continue until you let go and hit the side of the lane, forcing the pull drift compensation process to start over. Continued driver input should never cause a steering torque increase—it shouldn't ever try to fight you like it does now. It should be decreasing it. If you want to hold a position to the right side or left side of the lane, it should allow that without an increase in steering effort.

As a result of the bug, you either need to completely let go of the wheel periodically to let the drift compensation pull you to the right and start over, or just give up and disable lane centering. Cooperative steering with lane centering engaged is very frustrating with the current software. I've been hoping for a fix for a long time.

Also, this specific problem is mostly fixed in BlueCruise version 1.4 and 1.5, but I don't think that will be coming to the older Mach-Es.

 

[kennelh]

So, this specific problem is mostly fixed in BlueCruise version 1.4 and 1.5, but I don't think that will be coming to the older Mach-Es.

 

[ChrisO]

Yes there is a bug in the software of BlueCruise 1.3 and earlier where the power steering will treat your continued input as a pull drift compensation error, and erroneously increase counter-steering torque with time. This will continue until you let go and hit the side of the lane, forcing the pull drift compensation process to start over. Continued driver input should never cause a steering torque increase—it shouldn't ever try to fight you like it does now. It should be decreasing it. If you want to hold a position to the right side or left side of the lane, it should allow that without an increase in steering effort.

As a result of the bug, you either need to completely let go of the wheel periodically to let the drift compensation pull you to the right and start over, or just give up and disable lane centering. Cooperative steering with lane centering engaged is very frustrating with the current software. I've been hoping for a fix for a long time.

Also, this specific problem is mostly fixed in BlueCruise version 1.4 and 1.5, but I don't think that will be coming to the older Mach-Es.

That make sense of why I'm not/wasn't seeing it, I have been using 1.4 and 1.5.

 

[ChehRob]

I noticed this yesterday coming home from Seattle. My intuition was right, I decided to let it go that 15(?) inches further right than it should have. It seemed to correct itself, but Rick's explanation will make it easier in the future.

 

[music_cities]

Ok so first you need to ask someone you trust whether you are regularly driving too far to the left. For decades my wife told me I wasn't centred in the lane. When I bought the MachE and turned on lane keeping assist I finally had to accept that maybe she's the smart one in our relationship.

It took me several *months* to get used to where in the lane BlueCruise and Lane Keeping wanted me to be. I still fight it on occasion before relaxing, trying to see the world through my much-wiser wife's eyes, and going with the flow.

Another thing is if there is a wide paved shoulder, the car seems to be more biased to the right. It sees the big safety margin on the right and wants to take some advantage of it.

Also, it was definitely more of a real problem before I got the Bluecruise updates.

Now, after learning a bit about my own perception, trusting the wisdom of the wife, and the car itself getting smarter through updates, I don't find it a problem on a regular basis.

THAT BEING SAID there is still one road, the stretch of highway nearest to my house, where the lane keeping assist *still* pulls me way to the right. If there's no traffic and I let it do it's thing, eventually the *other* system, I think it's called lane departure warning, will get mad it and and yell at it and turn the animated lane boundary line RED on the screen. So, it's definitely not just me. Even the lane departure warning system sometimes thinks that the lane keeping pulls to the right.

So, anyway, have someone you trust judge it from the passenger seat, or, better yet, from driving behind you and watching. Don't necessarily trust your own perception. Realize that years of ingrained behaviour might be hard to change in your mind. Get your updates if you can. Nonetheless, there are still going to be a few times where you need to fight the lane keeping, or turn it off.

 

[Vgkfan]

Yes there is a bug in the software of BlueCruise 1.3 and earlier where the power steering will treat your continued input as a pull drift compensation error, and erroneously increase counter-steering torque with time. This will continue until you let go and hit the side of the lane, forcing the pull drift compensation process to start over. Continued driver input should never cause a steering torque increase—it shouldn't ever try to fight you like it does now. It should be decreasing it. If you want to hold a position to the right side or left side of the lane, it should allow that without an increase in steering effort.

As a result of the bug, you either need to completely let go of the wheel periodically to let the drift compensation pull you to the right and start over, or just give up and disable lane centering. Cooperative steering with lane centering engaged is very frustrating with the current software. I've been hoping for a fix for a long time.

Also, this specific problem is mostly fixed in BlueCruise version 1.4 and 1.5, but I don't think that will be coming to the older Mach-Es.

Thank you Lee. These things don’t bother me near as much if I know why they are the way they are.

 

[rugedraw]

I know you aren't afraid of a little FAFO action. I have always wondered what would happen if you side-load the IPMA strategy files for BC 1.4 onto a Mach E while keeping the existing calibration and config files that are particular to the Mach E. If it works, it would technically mean it has BC 1.4. I tried loading the files from a 2024 Navigator onto a 2022 to see if we can get lane change to work, and we were able to get it to partially work. No TRON is involved. If I had one of these, I would have tried it a long time ago.

We would need a guinea pig to try it. If it doesn't work, then you'd have to reflash the BC 1.3 files on it or PMI it with FDRS.

 

[kennelh]

I know you aren't afraid of a little FAFO action. I have always wondered what would happen if you side-load the IPMA strategy files for BC 1.4 onto a Mach E while keeping the existing calibration and config files that are particular to the Mach E. If it works, it would technically mean it has BC 1.4. I tried loading the files from a 2024 Navigator onto a 2022 to see if we can get lane change to work, and we were able to get it to partially work. No TRON is involved. If I had one of these, I would have tried it a long time ago.

We would need a guinea pig to try it. If it doesn't work, then you'd have to reflash the BC 1.3 files on it or PMI it with FDRS.

So this would be the Lightning BC 1.4 strategy files using FDRS? I'd have to see if the spouse would object to me FAFOing. I'm amazed she lets me do any FDRS updates, but this might be a bridge too far.

 

[rugedraw]

So this would be the Lightning BC 1.4 strategy files using FDRS? I'd have to see if the spouse would object to me FAFOing. I'm amazed she lets me do any FDRS updates, but this might be a bridge too far.

Correct, but it would be done with FORScan; not FDRS.

 

[kamorela]

Ok so first you need to ask someone you trust whether you are regularly driving too far to the left. For decades my wife told me I wasn't centred in the lane. When I bought the MachE and turned on lane keeping assist I finally had to accept that maybe she's the smart one in our relationship.

It took me several *months* to get used to where in the lane BlueCruise and Lane Keeping wanted me to be. I still fight it on occasion before relaxing, trying to see the world through my much-wiser wife's eyes, and going with the flow.

Another thing is if there is a wide paved shoulder, the car seems to be more biased to the right. It sees the big safety margin on the right and wants to take some advantage of it.

Also, it was definitely more of a real problem before I got the Bluecruise updates.

Now, after learning a bit about my own perception, trusting the wisdom of the wife, and the car itself getting smarter through updates, I don't find it a problem on a regular basis.

THAT BEING SAID there is still one road, the stretch of highway nearest to my house, where the lane keeping assist *still* pulls me way to the right. If there's no traffic and I let it do it's thing, eventually the *other* system, I think it's called lane departure warning, will get mad it and and yell at it and turn the animated lane boundary line RED on the screen. So, it's definitely not just me. Even the lane departure warning system sometimes thinks that the lane keeping pulls to the right.

So, anyway, have someone you trust judge it from the passenger seat, or, better yet, from driving behind you and watching. Don't necessarily trust your own perception. Realize that years of ingrained behaviour might be hard to change in your mind. Get your updates if you can. Nonetheless, there are still going to be a few times where you need to fight the lane keeping, or turn it off.

I've sometimes used my outside rearview mirrors to see my car's position in the lane where there are clear lane markings. Although the right side mirror distorts size, it's still possible for me to gauge relative position to the lane edge and compare to what the left mirror is showing.

 

[chuckles]

Ever since my job 1 2021’s first BC OTA, our stubborn pony has never correctly positioned in the lane. 2 lane highway? It hugs the double yellow. Separated freeway in lane 1? Let’s snug up to lane 2! After fighting me to be in the middle, when I let go, it’ll sidle right next to the lane lines, then slowly return to the middle. Naughty stubborn pony.

What’s especially frustrating is the car as built had the feature that if you positioned the car in the lane, it would maintain that relative position automatically. It was excellent.

 

[zenophobe]

I've been meaning to write about this for some time now. I bought a 24 AWD ER Premium (Job 2) in November last year. I use Adaptive Cruise Control most of the time and I particularly like the lane-centering feature. However, it has a peculiarity that I find troubling and potentially dangerous: when I engage it while driving, it often - but not always - pulls the car firmly to the right.

When it does this, and if I'm in traffic with a car travelling next to me on my right, I'm afraid I'll run into them so I fight the pull and manually steer my car, but the steering wheel continues to exert a pull to the right. After a bit of time it may or may not release and return to normal straight-ahead steering. If the pull remains for too long I have to turn lane centering off to relieve this tug of war with my car. And sometimes if I turn it off and back on again, it then acts normally - i.e. no pull to the right - but again not always. If no traffic to my right, sometimes I'll just let the car do its thing to gain insight into its behavior. It always returns to center-lane but only after brushing the right lane marking, maybe even riding the line.

It's been this way since I drove it home new, this isn't a new issue. Does the system need recalibrating or something? Has anyone else experienced this?

The same. Had it at the dealer for speaker replacement and they said all was well. Could not reproduce the event.

 

[MetalCord]

My '24 GT pulls to the right. Done it since day 1.

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