And of course it is based on the good old fashioned Teutonic atitude
that crickets live only to keep man happy and safe. So it has a strong
psychological component also. Hence it it VERY expensive to work on as
the wrench need to be well versed in sonic physics, psychology, and
very small animal husbandry. As we all know, crickets are sensitive to
temperature. Specificaly, their output of sonic energy is proportional
to their temperature, with each cricket having a different constant of
proportionality which introduces even further complexity and expense
into this system. What happens is that a little cricket house gets
built on each axel of the kar. This house is sort of like the houses
used in reality shows in that there are sonic pick-ups in each room. As
the velocity of the kar increases, the friction on the bottom of the
house increases and so does the sonic output of the cricket. This is
picked up and transmitted to the central computer which has to be
factory calibrated for the different cricket sound frequencies,
intensity, and basal rates of emission. Then any deviation from the
normal is simply converted to pressure on the brakes in that wheel. Of
course there are some problems with the colder climates where these may
be used, but that is covered by the use of the famous freezer crickets
of the Swedish bikini team. In fact, it was the late development of
these crickets in Sweden which delayed this safety development by
several decades.

mcbrue explainingly under the bridge in the trailer down by the river

96 S420

Many thanks, good explanation there.  What they don't make to clear is how
they ascertain that the wheel has slowed down too fast.  quite easy to do
though, likely some kind of induced voltage which increases with rate of
deceleration of the cog wheel/sensor ....

On ice, I assume, this mechanism would need some kind of fine tuning....

cheers, guenter