Has this been posted before on here? First time I have seen it and then only by chance as I was looking at one of my own.
Any comments on the long discussion started by Derahy Eirann re the DAS system which I, long retired, have not heard of before?
121 views and no replies. 
Does no-one know if DAS is obligatory in Europe?
Must say though, makes me feel better in my ignorance. 
yourhavingalarf:
The video…Has been posted before.
Thank you, still no opinion or information on DAS though,if it exists, if it is obligatory in some places.
What’s DAS?
Spardo:
121 views and no replies.
Does no-one know if DAS is obligatory in Europe?
Must say though, makes me feel better in my ignorance.
Is DAS another name for AEBS? Advanced Emergency Braking System. Sensors are fitted to the front of the vehicle and if they “see” an object they automatically apply the brakes.
That is now compulsory here on new vehicles. Older ones have an off switch, but rules on that might be changing.
They see some things but not necessarily everything, like pedestrians.
They also see things that arent a problem, like street signs on curves and overhead bridges! They are affected by dirt and snow etc. But Ive little doubt they will get better.
youtube.com/watch?v=ridS396W2BY
dailymotion.com/video/x39hb1v
Seems to be a global standard under UN rules?
Franglais:
Spardo:
121 views and no replies.
Does no-one know if DAS is obligatory in Europe?
Must say though, makes me feel better in my ignorance.Is DAS another name for AEBS? Advanced Emergency Braking System. Sensors are fitted to the front of the vehicle and if they “see” an object they automatically apply the brakes.
That is now compulsory here on new vehicles. Older ones have an off switch, but rules on that might be changing.They see some things but not necessarily everything, like pedestrians.
They also see things that arent a problem, like street signs on curves and overhead bridges! They are affected by dirt and snow etc. But Ive little doubt they will get better.youtube.com/watch?v=ridS396W2BY
dailymotion.com/video/x39hb1vSeems to be a global standard under UN rules?
I think it is, not sure which axles are involved in the braking phase, presumably all to have such a remarkable effect, but I can’t help but feel some unease at the loss of control for the driver. If that experiment had been made on a wet or very cold day, on a bend and, not to save a car but a plastic bag blowing in the wind, would we be so welcoming of it? Every incident is different and taking away the expert’s (the driver’s) decision to take another course of action is worrying.
This bloke apparently fainted, but that is surely rare. Can a completely aware driver take overriding action when he realises that full on braking is not appropriate?
Spardo:
I think it is, not sure which axles are involved in the braking phase, presumably all to have such a remarkable effect, but I can’t help but feel some unease at the loss of control for the driver. If that experiment had been made on a wet or very cold day, on a bend and, not to save a car but a plastic bag blowing in the wind, would we be so welcoming of it? Every incident is different and taking away the expert’s (the driver’s) decision to take another course of action is worrying.This bloke apparently fainted, but that is surely rare. Can a completely aware driver take overriding action when he realises that full on braking is not appropriate?
There are several threads talking about AEBS, but to summarise:
Yes, it can be turned off in current trucks but that may be changing soon.
It gives a quick flash of warning before applying itself, so a driver can choose to override it with input to brakes to “manually” brake, or by shoving down on the gas keep it from operating.
Anti skid braking on current trucks is pretty good at skid avoidance, and is better in dry conditions too.
youtube.com/watch?v=Vo6C3HEpfsQ
If the road is icy I don`t think it adjusts to looking further ahead in wet/cold weather, so might not stop in time to avoid a collision, but probably a lot slower collision than if not applied at all.
Not perfect by any means, and bloody annoying when it gets it wrong…but…probably a good thing.
Others have different opinions…of course!
Franglais:
Yes, it can be turned off in current trucks but that may be changing soon.
Possibly legislation…
To ensure they’re always switched on?
That’s a whole new can of worms. Drivers relying on auto-braking and then ploughing into stationary vehicles when the inevitable malfunction occurs. I’ve played with Mercs auto-brake feature and it didn’t give me any confidence at all. Approaching standing traffic it leaves it until the very last second to kick in, then it nose dives the whole lot and there’s your £6 Costa all over the dash.
Braking, possibly the most crucial part of what we do left to silicone chips, nah, I’ll pass mate.
yourhavingalarf:
Franglais:
Yes, it can be turned off in current trucks but that may be changing soon.Possibly legislation…
To ensure they’re always switched on?
Can`t remember where now, but summat about the “off switch” needing to be reset every 15minutes?
I could be wrong.
I`ve driven trucks with it fitted but would never rely on it.
It is there as an emergency back-up, not as an everyday tool.
Franglais:
yourhavingalarf:
Franglais:
Yes, it can be turned off in current trucks but that may be changing soon.Possibly legislation…
To ensure they’re always switched on?
Can`t remember where now, but summat about the “off switch” needing to be reset every 15minutes?
I could be wrong.I`ve driven trucks with it fitted but would never rely on it.
It is there as an emergency back-up, not as an everyday tool.
Gotta love it…
Let’s make braking complicated and throw in a few different parameters.
I’d imagine that auto braking probably has already saved lives and will continue to do so among a certain contingent of our “less gifted or attentive “ brethren.
As a pro driver it can be a PITA sometimes. The one that irks is when I’m following a vehicle for example on a s/c and it starts to indicate to turn left or right ahead. I’m already subconsciously doing the mental calculations because I don’t want to brake if it’s avoidable so I’m off the gas early and coasting on the overrun, the vehicle ahead has successfully started it’s manoeuvre and I KNOW that I’m not going to have to brake at all when suddenly the truck sounds the alarm and savagely hits the brakes! The worst part is that it will not give me any throttle whatsoever until a second or two has passed.
It makes me look like a berk to anyone following 
the maoster:
It makes me look like a berk to anyone following
Unless…
Of course they use the same techniques as yourself and will understand exactly what’s happening.
yourhavingalarf:
Franglais:
Yes, it can be turned off in current trucks but that may be changing soon.Possibly legislation…
To ensure they’re always switched on?
That’s a whole new can of worms. Drivers relying on auto-braking and then ploughing into stationary vehicles when the inevitable malfunction occurs. I’ve played with Mercs auto-brake feature and it didn’t give me any confidence at all. Approaching standing traffic it leaves it until the very last second to kick in, then it nose dives the whole lot and there’s your £6 Costa all over the dash.
Braking, possibly the most crucial part of what we do left to silicone chips, nah, I’ll pass mate.
Which Merc is that? I rely on it regularly quite happily.
stu675:
yourhavingalarf:
Franglais:
Yes, it can be turned off in current trucks but that may be changing soon.Possibly legislation…
To ensure they’re always switched on?
That’s a whole new can of worms. Drivers relying on auto-braking and then ploughing into stationary vehicles when the inevitable malfunction occurs. I’ve played with Mercs auto-brake feature and it didn’t give me any confidence at all. Approaching standing traffic it leaves it until the very last second to kick in, then it nose dives the whole lot and there’s your £6 Costa all over the dash.
Braking, possibly the most crucial part of what we do left to silicone chips, nah, I’ll pass mate.
Which Merc is that? I rely on it regularly quite happily.
You rely on the AEBS? Are we at cross purposes here?
We aren`t talking about the ACC (Active Cruise Control) which maintains a constant distance from the vehicle in front, but the Advanced Emergency Braking System. The clue is in the name.
Franglais:
You rely on the AEBS? Are we at cross purposes here?
We aren`t talking about the ACC (Active Cruise Control) which maintains a constant distance from the vehicle in front, but the Advanced Emergency Braking System. The clue is in the name.
Whatever it’s called, if I was still driving wagons the thought of someone, or something, taking over my decisions on the road is frightening.
Spardo:
Franglais:
You rely on the AEBS? Are we at cross purposes here?
We aren`t talking about the ACC (Active Cruise Control) which maintains a constant distance from the vehicle in front, but the Advanced Emergency Braking System. The clue is in the name.Whatever it’s called, if I was still driving wagons the thought of someone, or something, taking over my decisions on the road is frightening.
The idea of this system isnt to be an everyday driving aid. It is as the name says an Emergency system that steps in at the last possible moment to avoid a last line of safety. When a driver faints, or is checking his phone rather than looking through the windscreen! Sure, it may be related to systems that are about full automation, but that isnt what this one is. It might have prevented the video at the top of the thread.
There may be many instances of low level annoyance (and there are!) but that has to be balanced against rare but devastating cases like this: bbc.com/news/uk-england-37823457
Franglais:
The idea of this system isnt to be an everyday driving aid. It is as the name says an Emergency system that steps in at the last possible moment to avoid a last line of safety. When a driver faints, or is checking his phone rather than looking through the windscreen! Sure, it may be related to systems that are about full automation, but that isnt what this one is. It might have prevented the video at the top of the thread.
There may be many instances of low level annoyance (and there are!) but that has to be balanced against rare but devastating cases like this: bbc.com/news/uk-england-37823457
I understand that but such instances are, as you say, extremely rare. My worry is that emergency braking in a non threatening situation could cause an accident due to the violent action involved. In the case of the video you post, if the technology exists to detect inattention (as it certainly does, the ‘driverless’ cars being tested where the driver touches nothing but must keep looking ahead through the screen), surely a very loud noise to alert the driver would be better than slamming on all the brakes.
Perhaps I am too long in the tooth and away from the game, but the thought of violent braking on a slippery surface is the last thing I would want to happen.
I think I did ask earlier and I don’t think it was answered, but is the braking on all wheels or does it avoid the all important drive axle?
I should imagine with the up to date, ABS tech, it would apply braking to all axles.
Star down under.:
I should imagine with the up to date, ABS tech, it would apply braking to all axles.
Yes, I would have thought so, is ABS so good these days that jacknifing is a thing of the past then? I would doubt it as on a slippery surface wheels can slide aside (exactly what causes a jacknife) at the lightest touch on the brakes and the fact that they are released momentarily and immediately would be too late.
But as I inferred, am I too old and out of it? 