>> This is way off topic
>No kidding !

But I did warn you, didn't I?

>> How can a car with ABS brakes come to a stop in a hill?
>>
>> Why don't the ABS-system release the brakes when the car stops?

>The ABS system doesn't do the braking. Your foot does.

I didn't say the ABS-system do the braking. I said RELEASE the brakes.
There's a big difference.

>The ABS uses various methods to effectively make you take your foot off the
>brake for very short periods.
>One way is to pulse a very high pressure onto the line for a short time
>which pushes your foot off the pedal.

I don't think that's how it's done. If you put very high pressure on the
line you will also apply this pressure to the brakes, and they would
brake even harder. But that's not the issue here. I'm not interested
in the mechanic part of this, what I'm interested in is the electronic part.

How will the ABS system sense speed when the wheels are locked up?

I'm not sure it does.

And if this is correct, it is possible that the system could be fooled.
If a person brakes in panic and the road is *very* slippery the ABS will
start functioning. The speed is reduced and falls below the limit of
>which the ABS will deactivate (and the wheels are locked).
By coincidence the road starts to decline more at this point, and the 
speed of the car increases again. But since the ABS was deactivated and
the wheels locked it will not start functioning again until the brake
is released manually so that the wheels get rolling again.

Ok, I know this is a bit weird, but I'm interested in knowing if this
is true or not.

Feel free to take this thread private if you like.


-Oyvind