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S60 & V60 '18> / XC60 '17> / S90 & V90 '16> / XC90 '15> General Forum for the SPA-platform 60- and 90-series models |
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Adaptive cruise - aggressive braking?Views : 1868 Replies : 24Users Viewing This Thread : |
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Sep 19th, 2018, 11:11 | #11 |
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I find the braking can be a bit aggressive if you are in the slow lane coming up behind a lorry, it starts to brake miles before the lorry even though you plan to overtake it in another 100metres or so. As soon as you indicate, you feel the brakes immediately disengage. So I just indicate quite early for overtaking slow traffic, and it stops that effect. It was particularly noticeable in France where you are going 80-85mph, and the lorries seem to be doing about 50 :-)
You can also get the opposite effect, where the lane to overtake isn't clear, so you let the car do it braking thing, then spot a gap after you've slowed quite a bit. As soon as you indicate to overtake, the car buries the throttle now the obstruction is clear, and realises you are some way below the set speed. Can be a little disconcerting :-) Overall, I love the Pilot Assist / TACC though. Really takes some of the fatigue out of very long drives.
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Sep 19th, 2018, 12:32 | #12 | |
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Anyway I dont know where you drive Quacker, but I use one bar almost all the time (except in adverse weather) and even on one bar I am constantly having people cut into my braking distance.....
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Sep 19th, 2018, 14:50 | #13 | |
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I had a full software update on the V90 last month (I now have the orange --> red steering wheel warning on Pilot Assist), so can only assume it's a hardware upgrade?
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Sep 19th, 2018, 15:51 | #14 | |
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Where do I drive? Very early tomorrow morning I'm away from right on the West Wales coast, middle of Cardigan Bay, to Dundee. Would have gone this morning but for weather warnings. Then back to North Berwick. Saturday will be from there to Manchester. Sunday, back home. Does that answer your question?
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Sep 19th, 2018, 17:35 | #15 |
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It’s all about give and take. If I need to change lanes I am always appreciative of a large gap to use safely and in return I always travel using ACC on three bars. I agree that it makes no difference to travel time, but a great difference to comfort and anxiety.
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Sep 19th, 2018, 19:15 | #16 |
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Sadly tidy gaps don't work well on the M25
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Sep 19th, 2018, 19:25 | #17 |
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Never had an issue when I've driven around it. Obviously a safe gap varies in length proportional to forward speed.
Biggest issue is drivers keeping far too close to my arse for safety when the road is busy. The easily visible camera pointing at them from the back window has an obvious effect on many drivers when they see it. That being the case, they must have known they were tailgating unacceptably close to start with.
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Sep 19th, 2018, 19:36 | #18 | |
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Sep 19th, 2018, 19:41 | #19 | |
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Sep 19th, 2018, 20:36 | #20 |
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I've set distance to 2 bars and the braking is better although will need some time to have a proper test to account for traffic variations.
In the 18 reg V90 I've also set it to 1 bar which still maintains a reasonable distance but do feel the whole Pilot Assist and Adaptive Cruise experience to be much smoother.
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