Actually sensing the difference between being stopped and skidding with
all wheels locked is very simple and I'd be very surprised if they don't
do it already. When you're skidding, you're still slowing down and so
an accelerometer could easily sense this.
Matt
Chris Kotting wrote:
>
> Paul -
>
> Aha! You've discovered ABS's weak point. Allow me to ask a question:
> How does ABS know that a wheel is locked? Think about this for a second
> before reading the next line.
>
> Ready for the answer?
>
> By comparing rotional speeds of the four wheels.
>
> Now for the next question: How can an ABS system tell the difference
> between these two states (a) all four wheels locked and sliding, and (b)
> stopped?
>
> Answer? It can't.
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