How does Lane Departure Assist actually steer the 2025 VW Atlas. Does it drag one brake to get the vehicle on track or is the Power Steering actually turn the vehicle. Is there a standard way all car do this or does it vary by manufactuer/model?
How Does Lane Departure Assist Steer VW Atlas
- Thread starter raaizin
- Start date
The steering wheel moves on my 2020 RAV4. It's pretty cool to get on the highway and put on the cruise and see it stay in lane all by itself. Of course, it flashes a warning and shuts down if it detects your hand is not on the steering wheel. Without cruise, it mostly just beeps if you go out of the lane. It can correct a few inches back but that's about it.
I believe the Atlas has the MQB electric steering that uses servo motors to assist with turning. LDA uses these motors to keep the steering on track in conjunction with the cameras at the top of the windshield.
My 2018 MB E300 does both. You can feel the "tug" on the steering wheel, but if you ignore that, the brakes activate on one side or the other to convince you to heed the warning.
Ya I had one try to pull me into a parked car,I had to fight the wheel and slam on the brakes to avoid a crash
Which is exactly why I turned it off. If I were a habitual cell phone user while driving, I'd probably keep it on all the time!
On the Atlas it works really well. I didn't think I would use it after having it on an 2021 Audi and it was like fighting the steering wheel, I don't use it all the time but on long drives I engage it. It is very subtle on the VW in comparison
I remember talking to business person(daughters friends dad) who worked on development and sold tech to the carmakers. He said originally used braking however eventually steering input was the future which is here now.
None of car makers developed this tech, it was independent companies (couple) and sold system to OEM to tweak and self brand.
None of car makers developed this tech, it was independent companies (couple) and sold system to OEM to tweak and self brand.
WHAT
It turns the wheel.
I just took a 500 mile trip today in one - it works great.
2024 Tacoma. Turns the wheel, and it’s pretty good at it too.
I use the radar cruise a lot and find it extremely well sorted. It can be a stress reducer in bumper to bumper traffic, but it doesn’t give good “body English” at exits and merges to communicate to other drivers so it has to be babysat heavily there - BUT even if left alone the velocity management is effective if not confusing in certain moments for other drivers. The radar cruise alone is excellent.
Add the steering assist and for the most part it does really well. If one lane splits into two, it can lose its mind. It can get confused at narrow bridges. In a nasty rain it can sometimes see a well-painted road better than I can. It tries to hug the inside of a curve which I don’t like. It could be truly hands off on well-painted interstates, but the moment a line is distorted or a narrow bridge comes up where it can’t discern the edge, it can lose its mind. Thankfully it beeps to let you know it just lost track of things. If you don’t keep your hands on the wheel it will swiftly pull to the shoulder if it sees one and stop the car.
I know someone who had a medical event in a Lexus recently, and passed out while driving. The car somehow figured it out and steered him off the road and stopped. He lost some paint and a few bushes were run over. Car stopped fast.
I use the radar cruise a lot and find it extremely well sorted. It can be a stress reducer in bumper to bumper traffic, but it doesn’t give good “body English” at exits and merges to communicate to other drivers so it has to be babysat heavily there - BUT even if left alone the velocity management is effective if not confusing in certain moments for other drivers. The radar cruise alone is excellent.
Add the steering assist and for the most part it does really well. If one lane splits into two, it can lose its mind. It can get confused at narrow bridges. In a nasty rain it can sometimes see a well-painted road better than I can. It tries to hug the inside of a curve which I don’t like. It could be truly hands off on well-painted interstates, but the moment a line is distorted or a narrow bridge comes up where it can’t discern the edge, it can lose its mind. Thankfully it beeps to let you know it just lost track of things. If you don’t keep your hands on the wheel it will swiftly pull to the shoulder if it sees one and stop the car.
I know someone who had a medical event in a Lexus recently, and passed out while driving. The car somehow figured it out and steered him off the road and stopped. He lost some paint and a few bushes were run over. Car stopped fast.
Ditto for my 2020 C43. I have to admit that I like using Distronic Plus (Level 2 autonomy) on long interstate slogs as well as in stop and go traffic- below 25 mph or so the system doesn’t even require a hand on the wheel.
Yes, there are times when these things come in handy. The lane change warning can be pretty helpful at times, IF you remember to use your turn signals!
How does it work when you try to avoid accident by 'leaving your lane'?
When I have had to change lanes quickly I’ve never had an issue.
It's a little resistance-not a big deal. IT will not cause you to have an accident you otherwise would not have had.
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