On Wednesday 31 August 2005 12:18 pm, Olin Lathrop scribbled:
> David Van Horn wrote:
> > You can measure pressure in the brake lines though, which should do the
> > job.
>
> Theoretically that would work, but that's one part of a car you shouldn't
> mess with.  I would look for ways to detect how far the pedal has been
> pressed or some other part of the linkage has been moved without breaking
> any connections or getting "into" the system.


I'd agree, but the braking system is quite reliable and easy to mess with.  In 
fact, the brake light switch is quite often a pressure switch itself.  Most 
cars nowadays (built in the last few decades) also come with a split braking 
system such that if pressure is lost in one half, the prop valve will shut 
off that side and the other 2 wheels will still brake.

Cheers,
-Neil.


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