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Automatic Dynamic Headlight Aiming #5422488 05/06/20 09:38 AM
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SubLGT Offline OP
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Headlight aim has a big effect on headlight performance. A change of only 0.1 degrees vertical aim has visible consequences. A car in movement obviously has variations in headlight aim, and in the future we will have real time, dynamic automatic aiming of high accuracy. But it won't come cheap.


https://www.drivingvisionnews.com/real-life-tolerances-degrade-headlight-aim/

Quote
...Good lighting requires a good headlamp, well aimed. This investigation [by Audi lighting engineers] looks at the effect on headlight aim of individual tolerance contributors from car body parameters like load, tire pressure, suspension as well as temperature parameters of chassis and plastic parts....

DVN : What technology of automatic aiming could solve the tolerance problem?
Michael Hamm: In this case a possible correct answer would be rocket science. No joke—in missiles there are precise 3D positioning devices; we should think on something similar adopted in automotive. A kind of triple gyroscopic determination of the headlamp coördinate system, the car coordinate system, and the street coördinate system. Then we would have perfect aim everytime and everywhere.

DVN: OK, but that would surely take a long time to perfect In the meantime?
M.H.: We must continue in small steps. Improve awareness, improve aiming. We should try to increase automatic levelling to reduce glare and increase ADB systems penetration because they are less influenced by vertical aiming deviations. Wherever possible, decrease tolerances and improve sensor ability. A very big milestone would be any kind of closed loop between the aiming and the resulting light distribution on the street. This is an important task, also for future digital projections on the road.

Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422504 05/06/20 09:54 AM
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Yup, we definitely need more computing power in our cars smirk2


03 Honda Interceptor
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Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422510 05/06/20 09:59 AM
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I really hope that I can keep all of my old cars running so I don't have to deal with the headlight leveling system of the future


09 Vue 2.4L 4spd AT/ 09 Flex 3.5L / 96 F150 5.0 5speed / 07 Mustang GT auto
Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422532 05/06/20 10:27 AM
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97prizm Offline
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I've driven vehicles with the self adjusting headlights and wow it makes a huge difference but the price to replace at least for now are expensive.


If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm...DEAD
1984 Mazda RX-7 Spec 7
2005 Dodge Neon
Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422550 05/06/20 10:57 AM
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mightymousetech Offline
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edit


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Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422605 05/06/20 11:56 AM
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Kawiguy454 Offline
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Ill hang on to my old fashioned statically aimed lights till they outlaw me off the driver-less roads. After 5G lands the driver-less cars will only need running lights so bitter clingers like me wont run into them. ...Car Windows will probably also be optional.

Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422707 05/06/20 01:57 PM
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Dave9 Offline
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More extra expense, weight, cost, and failure modes for people who either shouldn't be driving at night due to poor vision, or refuse to drive within the speed limits and keep their vehicle headlights functioning reasonably (which this can't fix either).

It's kind of like equipping street vehicles with tires that can handle 200MPH. Something is wrong if that is any benefit, and usually more of a detriment in some way.

More is not better unless we want to pretend this is safety related. If that's the case then it should be a prerequisite that any vehicle that gets these, has to have a proper roll cage and the driver wear a helmet, 4 pt harness and head/neck support. Then they should just be prevented from driving because nobody should be on public roads if they need their headlights to compensate for their poor driving. That is not a requirement on a driver's license so there is nothing that prevents these poor drivers from being legally able to drive a vehicle that doesn't compensate for their inability to drive safely without special help.

Heh, maybe something like that will be a driver's license class some day, "Can't Drive but can play copilot for self driving vehicle".

Last edited by Dave9; 05/06/20 02:06 PM.
Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5422713 05/06/20 02:02 PM
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Skippy722 Online Happy
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My 2011 Durango had auto-leveling headlights, though you had to set the “home” position of them, and it was more to adjust for a heavy load or trailer. Expanding on that honestly wouldn’t be that hard.


2019 Ram 1500 Classic
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Re: Automatic Dynamic Headlight Aiming [Re: 97prizm] #5422968 05/06/20 07:43 PM
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Wolf359 Online Content
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Originally Posted by 97prizm
I've driven vehicles with the self adjusting headlights and wow it makes a huge difference but the price to replace at least for now are expensive.


Both my Mercedes have the bixenon headlights. They both auto level and have the active curve illumination. I think the headlights list for around $1500 each. Haven't spent a dime on any of them. It's fun driving it on curves, you can sometimes see the beam swivel a little, they only turn about 12 degrees right or left. But there's a motor in the headlight which is why I guess they're $1500, but I think now they're down to $500-$700 for the Hella light which was the OEM maker of them. You could also get used ones in the $200 range. I don't intend to own the car forever and I'm hoping that they last for the next few years that I own it. It doesn't seem to be a very common failure item.

Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5423019 05/06/20 08:21 PM
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PimTac Offline
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Adaptive LED headlights are the way to go. No mechanical leveling or swivel mechanism


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Re: Automatic Dynamic Headlight Aiming [Re: PimTac] #5423082 05/06/20 09:48 PM
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Wolf359 Online Content
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Originally Posted by PimTac
Adaptive LED headlights are the way to go. No mechanical leveling or swivel mechanism


The price of the headlamp assembly is about the same though. And technically I've read that the bixenons are actually brighter than the LEDs, which is why they were an option not standard. No failures on mine so far, but it's only been 12 years on one and 9 years on the other.

Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5423509 05/07/20 04:04 PM
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Put me down in the "I'd rather fix up a 60's Impala or Chevelle or Vette and waste my money on that" column please. There is something fundamentally wrong with spending $1000-$2500+ per headlight on a disposable direct injected turbo 4 popper redacted censored-box that won't last as long as some pairs of boots I've owned.

Re: Automatic Dynamic Headlight Aiming [Re: SubLGT] #5423518 05/07/20 04:22 PM
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Also if every $25k-30k MSRP car is rolling around with $10-12k replacement cost of sensors, lights, camera's ect in the nose alone what's that mean for collision repair? I imagine we are coming up on a point where most any frontal collision pretty much totals the car.

Re: Automatic Dynamic Headlight Aiming [Re: GZRider] #5423563 05/07/20 05:40 PM
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Wolf359 Online Content
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Originally Posted by GZRider
Also if every $25k-30k MSRP car is rolling around with $10-12k replacement cost of sensors, lights, camera's ect in the nose alone what's that mean for collision repair? I imagine we are coming up on a point where most any frontal collision pretty much totals the car.


Don't forget those sensors include auto collision prevention. So not as many collisions to repair. Probably why insurance hasn't gone up. Plus if the driver isn't paying attention because they're texting, that's the fault of the driver and their insurance should go up if there is a collision.

And put me in the party where I prefer my 4 wheel ABS/traction control/stability control, parking sensors/cameras, bluetooth, 7-9 airbags, keyless go, pano sunroof, etc. I did ride in a friend's 69 Firebird. Yeah, not even headrests although it did have lap belts. Just am/fm radio, had to bring our own bluetooth speaker. It was a convertible so I guess that trumps my pano roof.

And for the record, IF anything happened, it would cost that much. Nothing has happened so far so it hasn't cost me anything. Plus I like the auto high beams too. Because bixenons use a shutter, it comes on and off very gradually, I have to look at the dash to see if the high beam indicator is on to tell if they're on or not as you don't notice if they've come on or not if you're not paying attention.

Re: Automatic Dynamic Headlight Aiming [Re: Wolf359] #5423586 05/07/20 06:32 PM
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ffhdriver Offline
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The bixenons/HIDs on my Z4 were instantaneous, not slow. The shutter operation was fine.

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