An automatic wiper control system for a vehicle window determines the presence of rainfall based on window vibrations. During a vehicle driving cycle, a controller measures the window vibrations with an accelerometer attached to the window. The controller calculates a psycho-acoustic metric based on the measured vibrations, wherein the metric can be comprised of Articulation Index, Sharpness, or Roughness. The calculated metric is compared to a threshold indicative of rain impacting the window. The wiper system is activated according to a result of the comparison.
Automotive rain detector using psycho-acoustic metrics
2018-09-25
Patent
Electronic Resource
English
IPC: | B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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