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XBimmers | BMW X3 Forum BMW X3/X4 Forums Third Generation BMW X3 (G01) General Forum (2017+) Video: X3 drives itself using Lane Keep Assist

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      12-15-2017, 03:33 AM   #1
Keweenawbee
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Video: X3 drives itself using Lane Keep Assist

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Non exec pak with full assist. Can't wait to try this out.



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      12-15-2017, 07:59 AM   #2
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I gave a quick review here.

http://x3.xbimmers.com/forums/showpo...&postcount=611

Mine tends to hug the right side of the lane a little more than I'd like, but I bet it can be recalibrated.
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      12-15-2017, 09:26 AM   #3
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Quote:
Originally Posted by azf100 View Post
I gave a quick review here.

http://x3.xbimmers.com/forums/showpo...&postcount=611

Mine tends to hug the right side of the lane a little more than I'd like, but I bet it can be recalibrated.
I think there must be a calibration, because on a test drive, I found that it was too close to the centre of the road. Neither one is ideal. I wonder if the dealer needs to calibrate or if this is something that the user can do.
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      12-15-2017, 10:40 AM   #4
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I observed in an area with wide lanes that it tends to just wander in the lane and sort of bounce off the lines, a bit like a bowling ball with gutter guards. The effect is normally fairly subtle but I can see a very slightly tilted road, tramlining, or even alignment issues making it feel like it is hugging one side. There probably is also some calibration in regards to how sharply it corrects, etc, just thinking about other factors as well.
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      12-15-2017, 11:27 AM   #5
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Mine tends to bounce of the centerline.
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      12-15-2017, 12:33 PM   #6
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Quote:
Originally Posted by sor View Post
I observed in an area with wide lanes that it tends to just wander in the lane and sort of bounce off the lines, a bit like a bowling ball with gutter guards. The effect is normally fairly subtle but I can see a very slightly tilted road, tramlining, or even alignment issues making it feel like it is hugging one side. There probably is also some calibration in regards to how sharply it corrects, etc, just thinking about other factors as well.
That has been my experience as well. I let it drive for a couple minutes on a fairly empty toll road and it did fairly well.

But I tried it today on a local county road and didn't like how it tracked at all. Despite giving me the green steering wheel, etc., it had a problem keeping in the lane when the curve was fairly tight and I had to intervene before I ran off the road. There is also one right hand curve that is fairly sharp that has an intersection coming in from the left, kind of a Y junction. A left turn lane begins just before the Y. The lane keeping assist did not track the main lane around the corner to the right but seemed to want to follow the middle stripe into the left turn lane, which would have resulted in a head on collision had I not intervened.

So I'd definitely be cautious about over-relying on the system. Good for longer trips if I'm feeling fatigued or when I want to fiddle with the radio or something, but not something I'll routinely use.
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      12-15-2017, 01:10 PM   #7
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Quote:
Originally Posted by sor View Post
I observed in an area with wide lanes that it tends to just wander in the lane and sort of bounce off the lines, a bit like a bowling ball with gutter guards. The effect is normally fairly subtle but I can see a very slightly tilted road, tramlining, or even alignment issues making it feel like it is hugging one side. There probably is also some calibration in regards to how sharply it corrects, etc, just thinking about other factors as well.
Interesting. Sounds like it needs some further development.
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      12-15-2017, 01:12 PM   #8
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Looks like an admin modified my post? No worries! So do/can folks leave this on and just drive normally? I selected it to keep me from being drowsy on very boring sections of highway.
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      12-15-2017, 01:17 PM   #9
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Quote:
Originally Posted by Slalom View Post
I think there must be a calibration, because on a test drive, I found that it was too close to the centre of the road. Neither one is ideal. I wonder if the dealer needs to calibrate or if this is something that the user can do.
I'm not sure if the lane keep uses both the sensor in the lower grill and the cameras through the windshield, but I believe if you have your windshield replaced for example, it needs re calibrated. At least this is the case with other brands.
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      12-15-2017, 01:58 PM   #10
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Quote:
Originally Posted by Keweenawbee View Post
Looks like an admin modified my post? No worries! So do/can folks leave this on and just drive normally? I selected it to keep me from being drowsy on very boring sections of highway.
Yes you can definitely drive normally with it on. You will feel a pull in the steering, but it is not so strong that you worry about being able to "overpower" it. It is stronger than the lane departure warning vibration, but not too strong.

In all, I think that you made a good choice.
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      12-15-2017, 02:04 PM   #11
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I'm excited about this for use in boring traffic jams. Country roads with tight bends I am grateful for
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      12-15-2017, 02:10 PM   #12
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      12-15-2017, 02:11 PM   #13
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It's just a gimmick at this stage, not a mature tech you can rely on. Give it a couple more generations, and let it develop safely.
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      12-15-2017, 02:15 PM   #14
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Quote:
Originally Posted by Keweenawbee View Post
Looks like an admin modified my post? No worries! So do/can folks leave this on and just drive normally? I selected it to keep me from being drowsy on very boring sections of highway.
Perfect for drive-bys!
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      12-15-2017, 03:20 PM   #15
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      12-15-2017, 03:25 PM   #16
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Quote:
Originally Posted by ron_jeremy View Post
It's just a gimmick at this stage, not a mature tech you can rely on. Give it a couple more generations, and let it develop safely.
I agree. Which is why I didnít tick that option box. It would be cool to show off to people though
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      12-15-2017, 03:41 PM   #17
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This tech works really well for what it was intended to do...keep you in lane on long relativley straight / slightly curved roads at highway speeds or in any kind of stop and go traffic. Stretch your arms and legs or take off your jacket etc.

Not quite ready yet for city/urban hands free driving.
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      12-15-2017, 04:30 PM   #18
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I buy a BMW to drive.. and not have something else drive/park for me. Isn't that the reason people buy the ultimate driving machines?
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      12-15-2017, 05:50 PM   #19
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Quote:
Originally Posted by Lorde View Post
Perfect for drive-bys!


Quote:
Originally Posted by Maverik259 View Post
Blaring Music leaves a bit to be desired
Agree.

Blaring musing with cuss words and racial slurs definitely not good for a wide spectrum of viewers.

Quote:
Originally Posted by Keweenawbee View Post
Looks like an admin modified my post? No worries!.
While I may love and adore the Hip hop Station on XM radio... the choice of it (or perhaps the lack of recognition of what was playing) will certainly limit the audience that will appreciate your video
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Last edited by M3 Adjuster; 12-15-2017 at 05:57 PM.
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      12-15-2017, 06:40 PM   #20
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Quote:
Originally Posted by Calvin36 View Post
I buy a BMW to drive.. and not have something else drive/park for me. Isn't that the reason people buy the ultimate driving machines?
Yes, but sitting in stop and go for 45 min. per day never getting above 30MPH to me doesn't allow me to drive it the way it was meant to be driven. Being hands/feet free for a good 25min of that ride for the last week has made my daily commute more relaxing..
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      12-15-2017, 07:32 PM   #21
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Quote:
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I buy a BMW to drive.. and not have something else drive/park for me. Isn't that the reason people buy the ultimate driving machines?
It used to be.
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      12-15-2017, 08:10 PM   #22
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I don't care for the way it operates, so I don't use it. Waste of money.
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