Re: [NTLK] ABS and stopping OT,

From: Ed Kummel (tech_ed_at_yahoo.com)
Date: Mon Apr 22 2002 - 00:08:35 EDT


Of course, once your brakes lock up, the coeficient of
friction on your tire contact on the road changes
dramatically! I read an article once that showed that
once the tire exceeds it's maximum traction, the
breakdown of the tread creates little spheres of
rubber to be formed under the tire acting like small
rubber ballbearings and creating more of a lubricant
which perpetuates the lost traction! Unfortunatly,
most drivers (in the US that is) have very little
education when it comes to driving a motor vehicle!
Heck, I had to renew my lisence last year and take the
written test. I was in and out in under 4 minutes and
didn't miss a single question! How hard could that be!
I believe that our DMV is nothing more than a joke
perpetuated against a tax paying citizenry! I
personally did not like the driving instruction I
received from my local high school (when I was 16
years old) and took a 1 week aggressive driving
training course at Bill Scott Racing up at Summit
Point in West Virginia! Now...that's where you go to
learn how to REALLY drive! (I had classmates that were
from the FBI and three different county sheriff's
departments...and me! a snot-nosed 16 year old kid!)
Ed
web/gadget guru (and avid bench racer!)

--- scOtty teCHnoir <ticknor_at_punkass.com> wrote:
>
> ABS is a great thing, especially in winter, rain,
> etc.
> But standard [let's say disc brakes, no ABS] will
> stop you sooner that
> those with ABS, *IF* you know how to use them ;) why
> do race cars not
> have ABS? because professional drivers know how to
> modulate their
> braking properly, employing what is commonly
> referred to as 'threshold
> braking' where maximum force is applied to the
> brakes while still not
> quite 'locking them up' [which increases stopping
> distance and detracts
> from handling considerably ;)]. The advantage
> standard brakes have when
> modulated properly is that they are not losing
> miniscule amounts of
> braking force every second, as they do with an ABS
> system.
>
> Just $0.02
> scOtty teCHnoir
>
> > -----Original Message-----
> > From: newtontalk-bounce_at_newtontalk.net
> [mailto:newtontalk-
> > bounce_at_newtontalk.net] On Behalf Of Karel Jansens
> > Sent: April 20, 2002 8:24 PM
> > To: newtontalk_at_newtontalk.net
> > Subject: Re: [NTLK] OT, was Re: Battery pack
> thermo switch
> >
> >
> > On Fri, 19 Apr 2002 16:19:53 -0400, scOtty
> teCHnoir wrote:
> > >
> > >Too bad anti-lock brakes generally increase
> stopping distances under
> > >normal conditions.
> > >
> >
> > I know of only one situation where ABS performs
> worse than 'regular'
> > brakes: Using slick tyres on a bone-dry surface,
> ABS will result in a
> > longer stop than slamming regular brakes shut.
> >
> > In just about every other scenario ABS will
> perform better.
> >
> > I'd add 'YMMV', but in the context that'd be a bit
> too cynical, even
> for
> > me...
> > --
> > Karel Jansens
> > kareljansens_at_tiscalinet.be
> >
> > "Anyway, it's not just thinking. You've got to be
> able to talk about
> it
> > entertainingly afterwards."
> > (Glurk of the Munrung tribe explaining philosophy
> in 'the Carpet
> People'
> > by Terry Pratchett).

=====
Any sufficiently advanced technology is indistinguishable from magic.
- Arthur C. Clarke -

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