So... what car do you guys drive when not flying?

[Scarlett]

If you have the Adaptive (radar) Cruise Control on, then on models with road sign recognition enabled, it will adjust the speed to what it sees as you go along. I expect this is what happened to the OP.

Cheers,
Matt

I often have ACC enabled. It detects and displays the road side speed signs to me on the dash, but does not change the cruise speed I have it set to. If it was automatically increasing or decreasing my speed based on what it was ‘seeing’ I’d be turning that functionality off.

The camera recognition is quite good, in that it picks up temporary speed signs such as at road work sites, but doesn’t display those with the yellow background and black text, even with the numbers in a circle format.

 

[dairyfloss]

I often have ACC enabled. It detects and displays the road side speed signs to me on the dash, but does not change the cruise speed I have it set to. If it was automatically increasing or decreasing my speed based on what it was ‘seeing’ I’d be turning that functionality off.

The camera recognition is quite good, in that it picks up temporary speed signs such as at road work sites, but doesn’t display those with the yellow background and black text, even with the numbers in a circle format.

Yes - I’m the same. Would never use the sign recognition together with ACC, but it is an option (at least in some markets). I needed to enable speed sign recognition on mine using an OBD coding tool, as it wasn’t available/enabled by default on the AU model of my car at launch. It’s more seamlessly integrated in the same EU stock

 

[TheRealTMA]

If you have the Adaptive (radar) Cruise Control on, then on models with road sign recognition enabled, it will adjust the speed to what it sees as you go along. I expect this is what happened to the OP.

Cheers,
Matt

Not quite correct. Adaptive speed control generally, IME on multiple vehicles, warns you of the change of speed limit but you have to actively manually correct the speed or at least press the active speed button to get it to adopt the new speed limit. Some better systems have adaptive speed and speed limit (very useful for 40km city driving) with two seperate remembered settings so one can flick between adaptive and limit easily.

 

[dairyfloss]

Not quite correct. Adaptive speed control generally, IME on multiple vehicles, warns you of the change of speed limit but you have to actively manually correct the speed or at least press the active speed button to get it to adopt the new speed limit. Some better systems have adaptive speed and speed limit (very useful for 40km city driving) with two seperate remembered settings so one can flick between adaptive and limit easily.

I think it’s market dependent; possibly it’s not in AU without modification/coding? In EU delivered models I’ve read in manuals and forums you can set the car to automatically predict & react to speed limits with both road signs and GPS data, within ACC. Sounds like a nightmare to me, but someone must like the idea!

Here’s a video of what I’m talking about with my model of car

 

[Happy Dude]

The camera recognition is quite good, in that it picks up temporary speed signs such as at road work sites, but doesn’t display those with the yellow background and black text, even with the numbers in a circle format.

I was impressed with the Ford Ranger's ability to do that, that I'd rented recently. Picked up the roadworks near Gundagai very accurately. Probably due to its age, my 2017 Bimmer doesn't recognise speed zones, permanent or otherwise. Neither does it auto-adjust for the "new" speed zone - I have to do that. It can get a little worrying if I've missed a speed sign.

The Ranger was a thirsty ride though. Drank way more (~22%) than the Kluger rented two weeks later to do pretty much the same 1000km trip. I have recollections that, say 30 years ago, diesel was approx half the price of unleaded and diesels used fewer litres, making them tremendous value even though they required a bit regular maintenance. Was that ever the case, or close to it?

 

[Quickstatus]

it will adjust the speed to what it sees as you go along.

Not necessarily. The speed limit recognition also relies on stored map data. And interesting scenarios have been know. To occur such as driving under an overpass where the car thinks it should use the overpass speed limit.

Lots of forums suggest that it is not a foolproof as it may appear to be.
The other one is flashing 40km/h signs in school buses and also school zones.

 

[Flashback]

Not necessarily. The speed limit recognition also relies on stored map data. And interesting scenarios have been know. To occur such as driving under an overpass where the car thinks it should use the overpass speed limit.

Lots of forums suggest that it is not a foolproof as it may appear to be.
The other one is flashing 40km/h signs in school buses and also school zones.

Also I often find the in car system vs G Maps can display different limits .. and sometimes both be wrong!

 

[Quickstatus]

G Maps

While GMaps might provide the user visible interface, I think a lot of manufacturers use OpenStreetMap or MapBox for the underlying Map data.

 

[ausfox]

My Kia reads the speed signs including temporary construction beginning and finishing.