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The anti-lock system can change the brake pressure
faster
than
any
driver could. The computer is
programmed to make the most of available tire and
road conditions.
Here’s how anti-lock works. Let’s say the road is wet.
You’re driving safely. Suddenly an animal jumps out
in
front of you.
You slam on the brakes. Here’s what happens with
ABS.
A
computer senses that wheels are slowing down. If one
of
the wheels
is
about to stop rolling, the computer will
separately work the brakes at each front wheel and at the
rear
wheels.
You can steer around the obstacle while braking hard.
As
you brake, your computer keeps receiving updates on
wheel speed and controls braking pressure accordingly.
4-8
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