公开(公告)号：US20160114764A1

公开(公告)日：2016-04-28

申请号：US14757482

申请日：2015-12-23

Applicant: Hella KGaA Hueck & Co.

Inventor： Thomas Niemann ,  Olaf Lüdtke ,  Almut Schlarmann ,  Jürgen Palloks ,  Cevin Czsich ,  Jörg Sturmann

IPC: B60S1/08 ,  G01N29/24

CPC classification number: B60S1/0859 ,  G01N29/2437 ,  G01N2291/02809 ,  G01W1/14

Abstract: In a method for detecting rain on a windshield, whose degree of wetting is determined with at least one sensor value, it is provided that the sensor value is determined piezoelectrically, wherein vibrations on the windshield are detected, which change depending on the degree of wetting or raindrops hitting the windshield. As a result, the entire windshield serves as a detection surface, thereby yielding a high accuracy.