Euro model's AHS Adaptive high beam system

Hmmm... "AHS," eh? I know of a portion of Toyota Safety Sense called "AHB" -- Automatic High Beams (i.e., not "AHS," but "AHB") -- that seems to be what you're describing and I'm pretty sure is on the US version. At least, when I dial into Toyota Safety Sense, I get a web page with "Toyota Motor Sales USA" at the bottom that describes this function.

It says 25MPH minimum. Are you sure the speed threshold for you isn't 40KPH rather than 40MPH?

iPhone ? Pro

 

Interesting... Do you know what the differences are, other than 25MPH vs. 40MPH?


iPhone ? Pro

 

Does not sound better to me if you can't see whats in front of you unless you speed up.

 

On my Prime that is available...
And i use on manual....


Posted via the PriusChat mobile app.

 

Here is the Automatic/Adaptive high beams explanation: Would it make sense to buy the prime if I never intend to plug in? | Page 2 | PriusChat

According to EU Manual: "When all of the following conditions are met, the high beams will be turned on automatically and the system will operate:
1. The vehicle speed is approximately 15 km/h (9 mph) or more (* for turning 19mph or more)
2. There are no vehicles ahead with headlights or tail lights turned on.
3. The area ahead of the vehicle is dark."

So, it should work ... no idea.
Plus question: Any dazzling effect on the drivers ahead?

 

Well 40 mph,would only be about 64 kmph .
Thats not really fast and you should be able to see enough with only the low beam turned on,but if I guess you will allways be able to turn off the system and use high or low beam manually if needed .
At least you should be able to.

 

This is supposed to be the system in action,but I guess it hard for the camera to really show off the effectiveness of it.
Does anybody understand French ?

 

Interesting. I've never used the high beams just for being able to see where I'm going, at any speed on any road type (and we have some extremely severe winding roads around here). Low beams are sufficient for that at any speed I've driven (up to over 75mph). I use high beams when there might be animals near to but off the side of the road that I'd like to detect before they decide to run out in front of my car.

 

According to this, the system has 3 different patterns.

40mph is probably the limit for that low speed mode, and you are seeing that pattern switch. The low speed pattern could still be high beam when compared to traditional headlights.

The US Vehicle Code is outdated. We can't get these advanced headlight systems because of that.

The sooner you see something, the sooner you can react to it. 75mph is likely outrunning the low beams.

 

... in this case ... Phev

Here is a possible explanation (similar to Trollbait):

The AHS adjusts the brightness and illuminated area of the high beams according to the vehicle speed as follows:

In French video is mentioned: ... "we have the maximum beam width for speed 15-40 km/h" ... "and the minimum width for 80 km/h and more" ...
So, probably it works, just the illumination range is changing from the maximum width to the minimum one.

 

A bit strange the max. width beam is cut off at 40 kmph while the max. allowed speed in most European urban areas is actually 50 kmph.

 

... to be correct ... 'cca' 40 km/h (written in video)

 

Yes but that should only concern high beam,the other functions,like the width of the low beam at urban speeds should still be active .

 

And the reason we don't have adaptive high beam in the US is due to 20th century vehicle codes that prohibit any sort of "high beam" from being on in the presence of traffic? Kind of like all cars with an "automatic" transmission must provide a "B" mode to utilize engine braking to prevent brakes from overheating on long downhills?