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#4457793 - 07/12/17 11:34 PM ADB for Everyone?
SubLGT Offline


Registered: 01/31/06
Posts: 2646
Loc: Idaho
Over at DrivingVisionNews, Daniel Stern wrote an interesting article/editorial about Adaptive Driving Beam (ADB), and whether we will see it in all cars or just luxury cars.

Some excerpts:

Quote:
The inadequacy of the [conventional ] low beam is at the conceptual level. Consider: despite decades of trying, nobody has ever demonstrated a practical safety benefit to SAE or ECE headlamps. The list of theoretical relative merits and drawbacks is a long one: less glare from the ECE low beam, less backscatter (stray light) from the SAE low beam, longer seeing distance on the left side with ECE, longer seeing distance on the right side with SAE, etc. But even big theoretical differences don't show up in practical safety differences. Why? Probably because we are just comparing two varieties of inadequate headlamp. They simply cannot do the job we require of them…

In ADB we have technology and technique to fix the problem by giving drivers 30 metres' additional seeing distance without increasing glare. It's a seeing/glare balance much better than any low beam can achieve, and it will take big bites out of problems as serious as the alarming nighttime pedestrian hit-and-kill rate, and as annoying and intractable as the tendency of drivers in China to use their high beams even in traffic. But relying on the short-term-profit mentality that would offer ADB as an extra-cost luxury item stands a good chance of relegating ADB to HID's low take rates, and then it won't save lives because it's not on the roads. We must not allow that to happen….

Consider the lesson of the HID headlamp: when it was introduced in the early 1990s, we all congratulated ourselves on the superior new technology and the safety benefit it offered, and predicted the end of the halogen headlamp within a decade. That never even came close to happening, and it never will. From this we may draw an important warning: If we are to make real progress in leveraging our community's vast recent technical progress toward headlamps that can radically reduce traffic fatalities, we will have to think in radically different ways. To wit: we must all urgently work hard toward every vehicle coming with good ADB as standard equipment….

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#4457799 - 07/12/17 11:39 PM Re: ADB for Everyone? [Re: SubLGT]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Is the ADB the leveling mechanism? Because when one of those vehicles with a leveling beam is behind me on a hilly road at night I get blinded by it a lot
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#4457800 - 07/12/17 11:41 PM Re: ADB for Everyone? [Re: SubLGT]
SubLGT Offline


Registered: 01/31/06
Posts: 2646
Loc: Idaho
http://www.lrc.rpi.edu/programs/transportation/TLA/pdf/TLA-2016-01.pdf

An excerpt from the abstract in the above 2016 technical paper:

Quote:
Recent developments in solid-state lighting, sensor and control technologies are making new configurations for vehicle forward lighting feasible. Building on systems that automatically switch from high- to low-beam headlights in the presence of oncoming vehicles, adaptive driving beam (ADB) systems can detect both oncoming headlights and preceding taillights and reduce their intensity only in the direction of the other lights while maintaining higher levels of illumination throughout the remainder of the field of view. The nominal benefit of ADB systems is the provision of high-beam levels of illumination in the forward scene while reducing glare to oncoming and preceding drivers, who perceive low-beam illumination levels….

...The findings from both experiments are consistent with previous analytical and static field tests and suggest that ADB systems can offer safety benefits compared to conventional headlight systems. Despite these potential benefits, ADB systems are not presently defined in North American headlighting standards...


Edited by SubLGT (07/12/17 11:44 PM)

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#4457801 - 07/12/17 11:43 PM Re: ADB for Everyone? [Re: L_Sludger]
SubLGT Offline


Registered: 01/31/06
Posts: 2646
Loc: Idaho
Originally Posted By: L_Sludger
Is the ADB the leveling mechanism?


No. See the definition of ADB in my post #2

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#4457810 - 07/13/17 12:12 AM Re: ADB for Everyone? [Re: SubLGT]
SubLGT Offline


Registered: 01/31/06
Posts: 2646
Loc: Idaho
This short 2016 video from Mercedes Benz shows their ADB headlamps in the new E-Class sedan:

https://www.youtube.com/watch?v=0OJjvYPV3oc

And an older (2014) but still interesting video from Hella:

https://www.youtube.com/watch?v=xYSix5r38qY

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#4457826 - 07/13/17 01:12 AM Re: ADB for Everyone? [Re: SubLGT]
Wolf359 Offline


Registered: 04/27/12
Posts: 4741
Loc: MA
Yeah, I have them in my E-350. Seems to work pretty well. It actually comes on somewhat slowly so unless I'm looking for it, you don't notice when it goes from low to high. They still have it as an option in the new models, they're now LED instead of bixenons, but it's an extra cost lighting package. Also gives you active curve illumination.

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#4457836 - 07/13/17 02:21 AM Re: ADB for Everyone? [Re: SubLGT]
Claud Offline


Registered: 02/11/14
Posts: 593
Loc: Margate England
If everyone ud=sed halogen sealed beam or European spec H4 lights PROPERLY ALIGNED then there wouldn't be the current arms race reducing road safety at night.
If your night vision can't cope with such a system you have no business driving at night.

Claud.

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#4457872 - 07/13/17 05:29 AM Re: ADB for Everyone? [Re: Claud]
Trav Offline


Registered: 11/20/06
Posts: 18829
Loc: MA, Mittelfranken.de
The biggest problem I have is with the morons and their bro trucks that cant/wont align the headlights down enough to not blind anyone in front of them. I don't think you have these idiots in the UK, the toilet would never get an MOT.
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#4457882 - 07/13/17 05:52 AM Re: ADB for Everyone? [Re: SubLGT]
Falcon_LS Offline


Registered: 10/03/08
Posts: 4053
Loc: Kuwait
Biggest issue at this end is all the idiots with cheap, Chinese HIDs in halogen headlight housings that blind the living day lights out of you. The roads are extremely well lit, but they only do it for the "cool" factor and flash to pass.
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#4458010 - 07/13/17 08:51 AM Re: ADB for Everyone? [Re: Wolf359]
SubLGT Offline


Registered: 01/31/06
Posts: 2646
Loc: Idaho
Originally Posted By: Wolf359
Yeah, I have them in my E-350. Seems to work pretty well. It actually comes on somewhat slowly so unless I'm looking for it, you don't notice when it goes from low to high. They still have it as an option in the new models, they're now LED instead of bixenons, but it's an extra cost lighting package. Also gives you active curve illumination.


The E350 does not have ADB. No USA market vehicle has it. ADB is not yet legal in the USA. It is still under scrutiny by NHTSA. Sounds like your E350 has automatic high beams, and curve illumination. ADB goes beyond that.

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#4458110 - 07/13/17 10:39 AM Re: ADB for Everyone? [Re: Claud]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: Claud
then there wouldn't be the current arms race reducing road safety at night.
If your night vision can't cope with such a system you have no business driving at night.


AGREED!!

I'm so sick and tired of idiots with lights (even on "low") that blind me oncoming.

"current arms race" concerning headlights is an apt description.
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#4458183 - 07/13/17 11:45 AM Re: ADB for Everyone? [Re: SubLGT]
Wolf359 Offline


Registered: 04/27/12
Posts: 4741
Loc: MA
Originally Posted By: SubLGT
Originally Posted By: Wolf359
Yeah, I have them in my E-350. Seems to work pretty well. It actually comes on somewhat slowly so unless I'm looking for it, you don't notice when it goes from low to high. They still have it as an option in the new models, they're now LED instead of bixenons, but it's an extra cost lighting package. Also gives you active curve illumination.


The E350 does not have ADB. No USA market vehicle has it. ADB is not yet legal in the USA. It is still under scrutiny by NHTSA. Sounds like your E350 has automatic high beams, and curve illumination. ADB goes beyond that.


Oh yeah, Europe has lots of stuff that the US doesn't have and it might be years more til something happens. And yes, it's automatic high beams. Seems to work well. Still a rare option even in the new models as it's part of the lighting package.

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#4458250 - 07/13/17 01:02 PM Re: ADB for Everyone? [Re: SubLGT]
Vikas Offline


Registered: 07/22/05
Posts: 11249
Loc: NorthEast
ADB for everybody? Isn't that like communism? :-)

But seriously, why not just go with the LED headlights? If I am not mistaken current Corolla and Prius come with (or has an option) of LED headlamps. If Corolla can managed to put LED projector, there is no reason why all new models could not be mandated to come with them.


Edited by Vikas (07/13/17 01:02 PM)

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#4488074 - 08/14/17 06:44 AM Re: ADB for Everyone? [Re: SubLGT]
SeaJay Offline


Registered: 03/05/15
Posts: 1079
Loc: New York City
Lights that blind others are the new cool feature to have.

If anyone asks, we tell them it is strictly for safety to see better. But if it wasn't cool looking, we wouldn't bother.

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#4488385 - 08/14/17 01:07 PM Re: ADB for Everyone? [Re: SubLGT]
Brons2 Offline


Registered: 09/16/03
Posts: 3042
Loc: Austin, Texas
Originally Posted By: SubLGT
Originally Posted By: Wolf359
Yeah, I have them in my E-350. Seems to work pretty well. It actually comes on somewhat slowly so unless I'm looking for it, you don't notice when it goes from low to high. They still have it as an option in the new models, they're now LED instead of bixenons, but it's an extra cost lighting package. Also gives you active curve illumination.


The E350 does not have ADB. No USA market vehicle has it. ADB is not yet legal in the USA. It is still under scrutiny by NHTSA. Sounds like your E350 has automatic high beams, and curve illumination. ADB goes beyond that.


Watching the video, the MB system sure did exactly what you claimed in post 3.
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