LFA can only handle gentle curves?

[chunky_mike]

Yes, it does. AFAIU, they do it by spamming the resume (or +) button every few seconds. Also they are about to enable longitudinal control on Kia/Hyundai cars. When it's released, it'll even slow down in advance for sharper curves so that you don't have to disengage and manually control the car.

I got 2, but 3 wasn't available when I bought it. As I wrote, my only complaint right now is it sometimes fails to recognize lanes correctly when driving directly into the sun. 3 is supposedly better at handling those situations? Also, it'll definitely better at recognizing the car in front of you, which will make it perform better at longitudinal control, e.g. reducing speed to full stop when it sees a stopped car ahead. And, there are a few more minor improvements, such as wider indoor camera FOV. I'd recommend 3 if you can afford it.

Thanks yes I ordered the 3- couldn’t resist Black Friday! I hope that it lasts for a long long time. That is really my only concern about my investment in the device. Thanks for all your info!

 

[lbleigh]

Question? I have only had my Telluride for 2 weeks (and so far love it!!!). I have noticed at speeds at or around 40mph going around curves the steering "takes over" like it is anticipating the curve? It was disconcerting when it first happened. I'm never anywhere near the lane markers.

 

[Tellthemride]

Question? I have only had my Telluride for 2 weeks (and so far love it!!!). I have noticed at speeds at or around 40mph going around curves the steering "takes over" like it is anticipating the curve? It was disconcerting when it first happened. I'm never anywhere near the lane markers.

Lane Keep Assist is meant to do that. If you don’t like the assist feature you can dumb it down in the instrument cluster menu to Lane Departure Warning Only or completely turn it off.

 

[originaldev]

LFA on Telluride is certainly an amazing piece of technology. It's very reliable when it works and always works in a very predictable way. That is, I can almost always predict it in advance before it gives up on some steep curves.

Speaking of which, my only gripe with it is that, it seems to have very limited range of steering angles, and thus can only handle gentle curves. I'm not talking about windy local roads or highway junctions, but about interstate level highway roads. It's not a faint lane marker issue either. The markers were relatively fresh and clearly visible. It's just the radius of the curve that seems to prevent LFA from handling the car by itself.

For the comparison, I drove my friend's Volvo XC90 yesterday, and though their ADAS (I think it's called Pilot Assist) felt clunky and quite unreliable compared to Telluride's, it could definitely navigate through the steeper curves, which my Telly had struggled with, just fine at similar speeds.

Do others feel the same way? Or, is it a problem with my Telly?

Coming from a background in ADAS (Advanced Driver Assistance Systems) Research and Development, an ASSIST system such as what's available in the Telluride is much safer only handling gentle curves. Its main purpose is only to guide the driver's inputs to smooth out the driving experience. The system is physically capable of handling much sharper curves, but safety parameters in the software prevent any steering angles past a set threshold. (This threshold is also likely linked to current velocity meaning higher speeds decrease the max steering angle the ADAS system can request)

Vision-based systems are prone to make mistakes from time to time, such as misidentifying road markings. If the ADAS system were capable of steering at sharper angles, it greatly increases the possibility of accidentally causing an accident or a rollover in the case of misidentified road markings. An example of this would be misidentifying an exit ramp as the road itself, and sharply veering the vehicle off of the highway.

Although it can be frustrating, a lot of the limits of these systems are artificially placed in software to increase safety.