Interesting SCC behavior

[TheDr9669]

Has anyone noticed that if you have your cruise control set, (In my case the smarty pants type.) that when going around a nice big sweeper curve at say 80mph, the cruise control "backs off" and the car slows down? Example; cruising along at say 80mph and get to an interchange, as you go around the corner the car will coast down to 70 or even 65. As soon as the wheel is straightened out the car will then accelerate back to your set point.
I have done a little research and found nothing on this "feature". Would this be a function of the SCC, the ESC, or a combination? Does this "feature carry over to the 2nd gen as well?

 

[dmitriylm]

It's nice but also an obvious feature. It was handy when I was driving to Portland from San Francisco through the mountains and I could leave the maximum cruise speed alone as the car would automatically slow down when the steering angle reached a threshold. I could have taken the corners at full speed but passengers tend to be happier when you slow down a bit. It's a smart feature but given that the steering angle sensor is already in the car to facilitate other functions it would be lazy not to include it with SCC.

 

[FastDEW1]

I have noticed this on my 14 R-Spec as well. I notice that the curve has to be a certain amount before it will do it. Seems to be connected to either a lateral G force or more likely steering wheel angle sensor. But it seems to work well. I like it.

 

[Buford T Justice]

I know it's not on my 2013 base model. I take a "35" mph exit ramp quite often at 70 because I don't turn off cruise.

 

[amartz]

Has anyone noticed that if you have your cruise control set, (In my case the smarty pants type.) that when going around a nice big sweeper curve at say 80mph, the cruise control "backs off" and the car slows down?

If you want a classic example of this, try I-77 south out of Charleston, West Virginia. I-77 is very twisty thru there, and this "feature" makes the cruise control absolutely worthless thru that section of road. I can't turn the SCC back on until I'm off the West Virginia turnpike, and out of the twisties. I don't know if it's the steering angle, or the amount the car is leaning, or what, but I despise the behavior.

 

[Bill K]

In a turn, the SCC "sees" the edge of the road, and "thinks" that there is "something" in front of you. It slows down just enough to keep that "thing" at a proper distance.
If you have you SCC at three bars, you will take the turn slower than if you have it set to one bar.

 

[flynblind]

I have noticed that there are safety features with the Adaptive Cruise Control on my 2013.

I was cruising along at highway speeds. My family had fallen asleep and I was not a happy camper. I wanted some rest also. The family being asleep made me tired. So out of frustration, I gave the wheel a hard movement to the left then back to the right to get back in my lane.

This sudden change in direction actually turned the cruise control off.

I have also noticed that the cruise will coast down while going through sweeping turns at speed.

 

[dmitriylm]

In a turn, the SCC "sees" the edge of the road, and "thinks" that there is "something" in front of you. It slows down just enough to keep that "thing" at a proper distance.
If you have you SCC at three bars, you will take the turn slower than if you have it set to one bar.

I think this particular function relies more on the steering angle sensor and current speed as inputs than radar.

 

[amartz]

I think this particular function relies more on the steering angle sensor and current speed as inputs than radar.

+1

 

[TheDr9669]

If you want a classic example of this, try I-77 south out of Charleston, West Virginia. I-77 is very twisty thru there, and this "feature" makes the cruise control absolutely worthless thru that section of road. I can't turn the SCC back on until I'm off the West Virginia turnpike, and out of the twisties. I don't know if it's the steering angle, or the amount the car is leaning, or what, but I despise the behavior.

I do feel you on this one. I know that I have the cruise control set and know where I am driving, I don't want something trying to be a nanny over me.

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