As an optical test engineer for a company that designs exterior automotive lighting,
I can attest to the fact that the lighting you see must not only be functional, but
must also pass Federal Safety Standards as well, which isn't always an easy thing to do when you have crazy styling design engineers sitting on top of you screaming
"No! No! No! I want it to look like this! Make this work!"
LED lighting does not come without a price. We have put many man hours into the designs of thermal heatsinks, electronic drivers, optical components, etc., not
to mention thousands of hours of testing and validation. This all adds up to major cost, which is why you only see these features on high end models. As LED technology improves and ages, we will all start to see more and more of it integrated into the Mid and Base level vehicles. You folks haven't see anything yet!
Considering how the integration of LED lights on the car's exterior would conserve power and promote safety, it probably is a worthwhile addition, especially since LED prices are on the decline. The aesthetic improvements are an added bonus, as far as I'm concerned.
The inclusion of dozens or even hundreds of LEDs would not change the caddillac's "character", no matter how much they altered the appearance and style. The garish display of extravagence is made more modern, but not really any different. But as long as all of those lights don't impair the vision of other drivers they are certainly within their rights to have them. But PLEASE, don't ever make all of those lights mandatory. Some of us don't appreciate the appearance.
I find that daytime running lights are of questionable value at best, except for making insecure people believe that they are somehow safer. They put a lot more hours on the headlamp bulbs which in turn leads to more frequent burnouts, and it is far more likely that a car with a burned out headlamp is less safe than if the lamp was functioning.
Now if the running lamps only came on when the car was in a forward gear then at least they could serve some slight purpose, of warning that a car was about to enter traffic from being parked at the curb. But most DRLs come on when the engine starts, so they don't serve that purpose nearly as well.
J-allen, I believe that LED lighting (Day time running lightings) is come as a safety option for the vehicle now it has a must option in some countries in legally, So I believe that the main purpose should be address while thinking on the appearances.
I'll be darned. I did not know that Audi turned off the LED running light on the side that has the turn signal on. The car that I saw was indeed waiting at a traffic light with its left turn signal on, and the left LED strip was off. I wonder what they do when the four way hazard flashers are on?
I was an early adopter of LED automotive lighting technology. Back in 1989 when I was in college, I installed two red LEDs (and current limiting resistors) in each of the rear mudflaps on my 1977 Pontiac Firebird. I painstakingly carved a small groove for the wires and resistors, and then sealed everything up with a glue gun. The LEDs were retained with the small black circular clips, and they were wired in with the rear tail lights and were quite eye catching.
To make sure that everyone got a chance to see them, I had a well modified 455 in the car, and managed to show my tail lights to lots of cars that challenged me. :)
Exposure to the elements seemed to claim the circuitry about ever other year and I would have to rebuild them, but they were quite cool looking. I also had LEDs installed all over the interior, like only a college student could do! The import tuners today had nothing on me....
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.