Sometimes my MS 85D reduces my speed when I go from TACC to AS. It only allows 5 mph over the recognized speed limit. I'm pretty sure that it doesn't at other times. I know this doesn't come from the speed limit offset, because I.ve tested it with various settings, but the AS limit seems to be always 5 over. Anyone know why this is?
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Speed limited with Auto-Steer
- Thread starter terrykiwi
- Start date
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- Tags
- Driving Dynamics Model S
X Fan
Active Member
Legal and safety objectives met.
Been part of SW for a while and is road dependent ( there is one here in Naples that was 5mph up until the last two updates in which it allows a much higher speed ).
Local roads are typically +5mph.
Man, my phone fingers/autocorrect are failing tonight.
Been part of SW for a while and is road dependent ( there is one here in Naples that was 5mph up until the last two updates in which it allows a much higher speed ).
Local roads are typically +5mph.
Man, my phone fingers/autocorrect are failing tonight.
Last edited:
X Fan
Active Member
Yup. Highway is gated though. Search this site for max speed...I forget the limit.
idealsol
Member
I have a roadi drive frequently that has a 50 mph limit. Unfortunately, it is incorrectly identified via Tesla’s wildly inaccurate database as a 40 mph zone
Therefore, I’m limited to 45 mph in a 50, totally useless
TACC only on that road
Therefore, I’m limited to 45 mph in a 50, totally useless
TACC only on that road
For AP1, it is not related to speed limit on divided highways, but there is a 90 mph upper limit -- go over that and AP and TACC are disabled until you stop and put the car in Park.
I honestly don't know the current limitations on non-divided roads. It used to be the speed limit plus the offset, but now it may be speed limit plus 5? I rarely use it on those roads. The database that determines what type of road you are on has also changed, so it seems a little more random as to what the limitations are.
I honestly don't know the current limitations on non-divided roads. It used to be the speed limit plus the offset, but now it may be speed limit plus 5? I rarely use it on those roads. The database that determines what type of road you are on has also changed, so it seems a little more random as to what the limitations are.
How do you set it? This is what the manual says in the USA...
Restricted Speed
Autosteer is intended for use on freeways and
highways where access is limited by entry and
exit ramps. When using Autosteer on
residential roads, a road without a center
divider, or a road where access is not limited,
Autosteer limits the driving speed. The
maximum driving speed is calculated based
on the detected speed limit plus 5 mph
(10 km/h). In situations where the speed limit
cannot be detected, speed is limited to
45 mph (70 km/h). When Autosteer is
engaged in these situations, it reduces your
driving speed and your set speed to be within
these limits. You can manually accelerate to
exceed the limited speed, but when you
release the accelerator pedal, Autosteer slows
Model S to the limited speed. When you leave
the road, or disengage Autosteer by using the
steering wheel, you can increase your set
speed again, if desired.
