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Until automatic steering/lane keeping is enabled it doesn't make much sense to expect TACC to automatically turn on curvy roads
I would have said "semi-automatically" or something. "Manual" to me would mean nudging the speed up or down to meet the limit. Presumably you are talking about the brief tug on the stalk which resets TACC to the detected limit in a single operation.No, TACC does not adjust based on speed limit, though you can manually reset the TACC speed to the new limit.
I'm a bit confused. I'm not expecting the car to "learn" (yet ) but I'm surprised you're asserting that it won't "improve with time" despite Tesla's history of and commitment to software updates. Heck, you've offered the Mercedes example of a solution to the problem and are assuming Tesla won't at least meet that standard. Odd.
Wow, Hwy 17 seems like a pretty challenging road for TACC, I am impressed that it worked so well for you.
It seems to me that some people are using cruise control where it shouldn't really be used.
i gather it's the opposite:
the 17 is like a normal hwy.
it's just telling how tacc has not worked well, for such a common scenario.
I see you live in Vancouver. I am going to assume you are not familiar with the Hwy 17 being referred to. I can assure you it is far from "normal". I've driven it many times. It is twisty, steep, and the lanes are narrow with typically no or very little shoulder.the 17 is like a normal hwy.
I see you live in Vancouver. I am going to assume you are not familiar with the Hwy 17 being referred to. I can assure you it is far from "normal". I've driven it many times. It is twisty, steep, and the lanes are narrow with typically no or very little shoulder.
But it is a two-lane (in each direction) limited access freeway with center divider. Not what I would call twisty or steep. Yes, it's unusual *for a freeway* but it's still a freeway. It's no surprise that TACC works fine there.
If you want twisty and steep try Black Bear Pass near Telluride CO (but not in your Tesla
From the previous anecdotes, I'm not sure that's the case. I get the impression from those anecdotes that simple slight twists to get around, say mountain terrain, are often enough to throw off TACC.If the road is too curvy for TACC to work, the road is too curvy for cruise control in the first place.
I just used it on highway 17 from Santa Cruz to Los Gatos and it worked flawlessy the whole way, zero intervention from me. Medium heavy traffic, lots of weaving idiots, on a very curvy road, short wall to the left with oncoming traffic. Car distance set to 6 or 7. Starting to wonder if the poor performance people are experiencing is when the following distance is < 6.
?? 17 is a FREEWAY. I certainly expect it to work there. I find it works well enough most of the time on real lay twisty roads (think Skyline Dr or Woodside Rd west of Woodside).
Seriously, any kind of cruise control shouldn't be used on curvy roads. TACC is not autonomous driving.
I totally agree on autonomous. I like using it because it stops me from my very bad habit of zeroing in on the car in front of me because they are always going slower than I want. I actually think TACC has slowed me down and made me a more relaxed and polite driver. It's a bad habit that I just can't seem to break. Ironic, I buy a rocket ship of a car and end up driving slower than I did before. Maybe I am finally growing up!
From the previous anecdotes, I'm not sure that's the case. I get the impression from those anecdotes that simple slight twists to get around, say mountain terrain, are often enough to throw off TACC.
Certainly in the case of Highway 17 you are supposed to slow down by 5-10mph around the curves. I would say that isn't an appropriate time for cruise control, since you are constantly slowing down and speeding up. Relying on the car in front of you to slow you down isn't great if they suddenly change lanes coming into the curve. I think the poster you are replying to is saying that if the curve is sharp enough to throw off TACC you would probably have to disable CC to slow down even if there was no car in front of you.
Certainly in the case of Highway 17 you are supposed to slow down by 5-10mph around the curves...
Sorry, maybe you are calling it a "freeway" based on a map you are looking at, but it is not a freeway, the part under discussion that goes over the mountain between Los Gatos and Santa Cruz has multiple intersections that are not the "freeway limited access" type with on ramps and off ramps, and it the lanes are narrow with no shoulder at all for most of it. Not a "freeway". It is notorious for having a higher accident rate.But it is a two-lane (in each direction) limited access freeway with center divider. Not what I would call twisty or steep. Yes, it's unusual *for a freeway* but it's still a freeway. It's no surprise that TACC works fine there.