off topic / traction control

[justin ivan]

Yeah there is a lot of blame to place. I personally still place a large 
portion of it on driver input. If people realized that they aren't driving 
the Honda civic they had for a first car, the roads would be a hell of a lot 
simpler. Like I said I drove a full size conversion van, and being at the 
ripe old age of 20 and 21, I did some stupid things in it. I took on/off 
ramps to quick, Dukes of Hazard slides in the dirt, I was rough on my 
throttle and steering input, hell I even got air in it once, but never, I 
mean never did I feel like I was going to tip it.
As far as tolerance stack-up, I know exactly where you are coming from on 
that one being that I designed biomedical micro-valves for a while. You 
forgot to mention that not only is a tolerance stack-up performed but that a 
factor of safety >1 should also be considered. That being said, I have heard 
that most engineering feats (specifically Buildings and bridges) factor in 1 
human death for every million dollars. Pretty odd to put a price on human 
life!


>In the Firestone/Ford case, there's a lot of blame to be assigned.  You've
>got the afforementioned driver error, compounded by a vehicle platform
>design that was marginal at best.  Then, you throw a cheap OEM tire at it,
>and recommend an inflation setting that was set for passenger comfort 
>(since
>when are *trucks* supposed to ride well?).  In engineering, you perform a
>"worst-case analysis" or "tolerance stack-up" where you take each component
>in it's worst-case situation and determine the effect on the system.  The
>whole Explorer thing was a great example of a worst-case situation.
>
>Eric Bryant
>mailto:bryante at ghsp.com
>http://www.novagate.com/~bryante
>
>
>
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