Both the cars I've had with rain sensing wipers have an adjustment switch on the stalk. The older car had 5 settings - this one only 3. And if they do anything useful, I've not found out what that is. ;-)
snow yes, ice no.
It tells the car your capitalistic desires, which being a leftie car, it ignores.
What do you mean "no"? Did your wipers try to clear ice and rip them?
water
Even if they are by the time the frost has melted to water blobs that the sensor sees as "rain" the blades won't be frozen to the screen. They might still be encased in ice but the ice/glass bond will be very weak.
How does the detector work? So whatever it does it only senses liquid water?
Scatter/reflection of infrared light from blobs of water on the screen I think. Snow and frost aren't blobs...
Clever, I thought it was just electrical resistance.
And doesn't frost reflect just like water?
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