How do they work? Most of time they work fine in my car but usually it goes crazy max speed even when there’s little rain, and also at lowest speed when it’s pouring rain…
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There’s a small infrared camera usually behind the center rear view mirror, it looks at a small patch to determine the rain frequency and sets the wipers accordingly, it’s up to the software to understand the speed of rain and decide what wiper setting ti use, and it’s not a very easy to code thing, so on many vehicles it can seem kinda random at moments
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