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Sean D
 
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Default Re: Disabling ABS - 01-21-2006 , 03:14 AM







"jim beam" <nospam (AT) example (DOT) net> wrote

Quote:
Sean D wrote:
"flobert" <nomail (AT) here (DOT) NOT> wrote in message
news:i0k2t1t94gr91ve2nj0183ejkaptgk1mm2 (AT) 4ax (DOT) com...

On Sat, 14 Jan 2006 20:50:40 -0500, "Sean D" <sdonaher (AT) sympatico (DOT) ca
wrote:


"jim beam" <nospam (AT) example (DOT) net> wrote in message
news:McWdnZWvKfZRFFTeRVn-qw (AT) speakeasy (DOT) net...

Professor wrote:

You are all overlooking a key feature of ABS... that nobody has
mentioned. It's the ability to steer after you stomp on the brake in

a

panic situation. This steering ability could be key in crash
avoidance...

Professor
www.telstar-electronics.com


dude,

"you can /only/ steer if you have sufficient adhesion."

Exactly, it's anti-LOCK brakes, not anti-skid brakes. If you are doing

30

miles per hour on an icy turn and you slam on the brakes, the wheel may

not

lock but there is a decent chance the car's inertia will make you slide

on

the ice because of the sudden deceleration, front tires without
traction
don't steer, even if they are turning.

Mr. Professor seems to assume that all people slam on the brakes with

full

force in a panic situation. There are some of us who have had driver
training and learned "threshold braking".

Actually, its properly called Cadence braking


If you'd bothered to google both terms you'd know that they are both
equally
accepted terms for basically the same technique.

not really. cadence, like abs, is where you pass /through/ the
threshold of adhesion, lock and have to release. threshold is where you
brake /at/ the adhesion limit, but don't pass through it.

So cadence braking is "pumping" the brake where you lock and unlock, whereas
threshold is where you constantly apply the max pressure without locking to
get the most out of the brakes, right? The technique I learned was
threshold braking, where you hit the brakes hard, when you feel the wheel
starting to lock, release the slightest amount of pressure to prevent
locking, then gradually apply more pressure to brake as you slow down,
always staying on the verge of locking. As I said earlier, a properly
performed threshold brake will outperform ABS because there is no release in
brake pressure. I still use threshold braking on my car. ABS just prevents
locking if I accidentally apply too much pressure. It's a safeguard, but I
don't depend in it.

P.S. My apologies to the poster I responsed to earlier. My response was
snotty. I'd just gotten off work and was in a rotten mood.


Quote:

It's basically the manual way of
doing what ABS is doing. There's called skills. ABS was invented to
protect the people who don't know that technique. As for the
professor's
question in an earlier post about some being able to outperform the
computer, properly exacuted threshold braking can stop a car in a
shorter
distance than ABS.

No computer system will ever be able to outperform a skilled driver.
The
key word being "skilled". Not everyone is. This is why ABS exist.



because you have abs doesn't mean you can steer. all that abs

achieves,

and my grandmother is a great example of this, is some hope of
crash-avoidance in a situation where a panicking driver locks the

wheels

and won't release them again. /you/ seem to be overlooking the key
disclaimer of the owners manual.






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