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[Varche]

General question.

Where does predictive cruise obtain what it thinks is the prevailing speed limit? It isn’t from sat nav as not a paid for option. ( unless it is still there but invisible?)

Mostly it is correct but sometimes has spurious figure. I also note differences  sometimes between car and maps ( both google and Apple)

[Andy B]

never heard of predictive cruise .... do mean you adaptive cruise?

My ML has a camera that reads speed signs to tell you what the limit is .... it's not always correct as it sometimes sees signs on side roads & confuses it with the limit on the main road that I'm travelling on. Other times it tells me the limit is NSL ... I've yet to find out what it's looking at 

But I believe some sat-navs get their limits from Google maps but AFAIK that's not tied to speed limiters 

[johnnydog]

https://news.motability.co.uk/motoring/predictive-cruise-control-explained/

[Andy B]

https://news.motability.co.uk/motoring/predictive-cruise-control-explained/

TA .....I'd never heard of it. Sounds like yet another step towards autonomous cars & another reason to keep the car I already have. 

[johnnydog]

https://news.motability.co.uk/motoring/predictive-cruise-control-explained/

TA .....I'd never heard of it. Sounds like yet another step towards autonomous cars & another reason to keep the car I already have. 

I drive a lot of various 'newer' cars in connection with work. Many of the driver assistance systems are actually  taking away the actual pleasure of driving. Personally I still enjoy driving (depending what the car is of course) but it just makes me want to keep my 'older' cars without these 'new fangled' so called driver assistance systems.

[Varche]

https://news.motability.co.uk/motoring/predictive-cruise-control-explained/

That is it.
With all this stuff you can of course turn it off but it is every time you start the car.

You do have to have your wits about you for what I call spurious speed reductions. Eg driving at 70 and suddenly it reduces to 50 for no obvious reason.

One thing that I do think is clever is in Spain we have a lower limit on motorways for bad weather eg rain. The two limits show on your dash with the correct one more prominent. If it rains and you use your wipers, then it reverses and puts the lower limit prominent.

All sort of clever stuff but sucks the joy out of motoring as johnnydog and Andy say.

[TheBoy]

Most work from speed sign recognition, reverting back to map data if necessary and available.

Her's has automatic speed warnings, but its old enough to be able to disable once in the menus, not every journey as per new cars.

[Migv6 le Frog Fan]

I despair.