Just in time
Engineers working in the Bosch research center recognized the problem many years ago and came up with an ingenious sensor. The function “rain = wipers on” would have been a relatively easy problem to solve from the technical standpoint. However, how could the windshield wiper system recognize and differentiate continuous rain from drizzle, snow from water splashed by other vehicles, night from the darkness of driving through tunnels? Would it react at the right time and with the needed frequency? The endless combinations of possible scenarios and the avoidance of incorrect responses demanded an advanced and intelligent technology. Bosch was able to solve the challenge by designing a complex optical system that incorporates a microprocessor. The Bosch rain sensor is installed on the windshield of the car near the rearview mirror.
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