On Mon, 02 Feb 2009 13:18:41 +0000, Invisible wrote:

> scott wrote:
>>>> BTW ABS doesn't work below about 5 or 10 mph...
>>>
>>> Really?
>>>
>>> Any specific reason?
>> 
>> I imagine it's because if the ABS system sees all four wheels go from
>> 5mph to 0mph it can't tell whether you've actually come to a stop or
>> you are skidding on ice.  At 50mph it's obvious if the wheels all stop
>> within a fraction of a second you are skidding, at low speeds it's not
>> so easy to work out.
> 
> Mmm, OK.
> 
> I must admit, I've always wondered how the hell ABS actually works.

http://auto.howstuffworks.com/auto-parts/brakes/brake-types/anti-lock-
brake.htm

> But not as much as power steering. This, as far as I can tell, should be
> logically impossible. And yet it apparently works. How baffling!

http://auto.howstuffworks.com/steering4.htm

Jim

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