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ACC and Traffic Jam Assist

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Old 08-14-2017, 10:40 AM
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Originally Posted by DB22
Is there a setting using vag com to extend this duration? I have done it in my A6.
i would like to know this as well
Old 08-15-2017, 04:32 AM
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Originally Posted by DB22
Is there a setting using vag com to extend this duration? I have done it in my A6.
As far as I know, nobody has found the coding for the Q7 to extend the 3 second automatic go timeout. What's the coding for the A6? Perhaps that will help us track it down for the Q7.
Old 08-15-2017, 05:23 AM
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Would be good to find the 15 second for TJA.
Old 08-15-2017, 06:24 AM
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Originally Posted by DB22
Most modern vehicles can pull between .75 and 1.0g's but most drivers have a problem using half of that capability. There is not a speed limit in the country that you need to slow down to to go around a bend.
Maybe not I’m the US! Here in the UK, the speed limit on most twisty country roads is usually 60mph. The ACC does a great job on the whole in slowing down for the sharper corners. Without it, you would quickly be upside down in a ditch
Old 08-15-2017, 06:28 AM
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In a car and driver comparison test they commented that the Q was the only one that let them know there was a sharp turn coming up in a fog bank. They really appreciated that feature.
Old 08-15-2017, 06:32 AM
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Originally Posted by srbsq7
Maybe not I’m the US! Here in the UK, the speed limit on most twisty country roads is usually 60mph. The ACC does a great job on the whole in slowing down for the sharper corners. Without it, you would quickly be upside down in a ditch
In the US, the speed limit for the road would be defined by that turn, so it would be fine to drive the speed limit around any turn, and the speed limit would seem unusually slow for the rest of the road.
Old 08-15-2017, 06:38 AM
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What is the difference between TJA with ACC and cars that have lane assist and acc that allows the car to go to zero mph? It seems that Audi has two features that other cars can do in a single feature.
Old 08-15-2017, 06:49 AM
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Lane-assist will vibrate the steering wheel if you go over a line. It can nudge the wheel.

TJA self-steers and fully drives the car up to 40 MPH hands-free for up to 15 seconds at a time.
Old 08-15-2017, 06:54 AM
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TJA looks several cars ahead and is not just tracking the lines but cars around it, and for me in the UK, TJA hands free is nearly a minute compared to 15 seconds or so for active lane assist.

TJA is also supposed to steer round obstacles such as a broken down car but when I tried it I took ver as wasn’t convinced it wasn’t going to hit it!
Old 08-15-2017, 06:59 AM
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I have a rule to plan to buy every safety feature. DAP has safety stuff.


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