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[phlish] Thats what I ready had in mind just didnt explain it very well. This would be something that would not be obvious unless you were looking for it. The pattern of the tread should be absolutely identical to the rest of the tire. |
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The layering or rubber hardness differences would need to be developed in such a way as to no effect normal tire wear but this is more a trial and error type approach. The goal was a simple and effective way to gauge wear. you can currently do this by visual inspection combined with a tread depth gauge and a notebook, but this is time consuming and is generally not done as frequently as should be. Many suspension troubles can lead to uneven tire wear within a couple hundred miles, but the wear will not be obvious to the naked eye(or ear) for many thousands of miles(again usually after the tire is too worn to be saved) |
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Second part of system might also be able to tell the car what type of tires are installed so that it can better tune the ABS and Traction control settings for the tires and conditions. |
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[phlish] why out of curiosity do you think the second part is not feasible? |
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It would be vary expensive to make tires
like this. I don't know of an easy way to
cast the tires in layered colors. It might
be more feasable with pre-made rubber
bars inserted into the tire like was
mentioned, but this would still add cost
and probably reduce the strength of the
tire. |
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It might be possible to make the tires in
a spinning mold, with different colors of
rubber being added one after the other
to make thin, even coats of color. |
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Would it be possible to make a
mechanical tread depth gauge that
would work while the tire was spinning?
Maybe some type of comb-shaped
device that would run through the
grooves or channels in the tire. |
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A basic Laser system could do this as well. As to tires, they already inlay different colors into the treads(see BFG) so laying in something else should not be difficult. As to Strength these need not be large to do the job. I would think this should be fairly easy to implement. Yes it would probably cost more in the beginning but there is nothing fancy here. |
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Another reason that an optical system
would probably not work: tires would pick
up dirt from the road and become darker
as you drive. |
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I think the idea with lasers might work, but
you would have to ask yourself if it was
really worth it. |
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IT would be a seriously cool thing to be able to brag about. "my car has laser tire monitoring system that tells me when to rotate my tires". I mean if your gonna do it, why not do it with style. |
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To answer [rasberry re-tart]'s comment: the way tires are manufactured, it would not be difficult to create a tread containing multiple layers of rubber in different colors. Tires are not inflated or cast from liquid rubber, but are assembled from dozens of individually manufactured pieces of uncured rubber. The tread piece is made of a different rubber formula than the sidewall, which is different than the rim, etc. To make tread, a smooth, continuous sheet of thick, tire-width rubber moves down a conveyor and is cut into tire-circumference lengths by a moving knife. This is wrapped around the rest of the tire on a form before molding. In the mold, a bladder inflates inside the uncured tire, pressing the soft rubber into the tread patterns and text patterns in the mold. The tire is baked to vulcanize the rubber, and a tire is born. See the link for a photo. |
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The tread could be made from multiple layers of color, much as the sidewall already is. The white letters are a layer of white rubber under a very thin layer of black rubber, the top layer is ground off at the factory to reveal the white, just like the road will grind down the top layer of tread. Can-do. + |
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The only problem I have with this idea is that it is already baked to a certain degree. Depending on the brand and model, some tires actually have wear indicators that are molded horizontally between the treads to give you an indication of how much tread is actually worn away. Trained professionals know how to detect uneven tire wear and suspension problems in the early stages so if you have your car in the shop regularly you will be able to do something about the problem before it becomes a REAL problem. |
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How about layering the color of the tire, so you can see the contours of the wear, and know to change the tires when they are down to red, say? |
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Why not just layer in color, ie once 1/4" is worn off, bright yellow tire is visible. Why are car tires always black? |
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Actually those wear indicators are used to indicate when you have exceeded Minimum Tread depth. By design they will not accurately indicate a number of suspension problems as they do not occur uniformly around the tires radius. The key here is rapid diagnosis of suspension problems so small subtle changes become important. |
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