Hella Kgaa Hueck and Company

Olaf Lüdtke

Thomas Niemann

Jürgen Palloks

Almut Schlarmann

Cevin Czsich

Jörg Stürmann

Antje Müller

Tim Petasch

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.

Method and device for detecting rain on a windshield

The invention relates to a sensor arrangement for detecting ambient conditions, in particular for a motor vehicle, with at least one carrier plate and optical elements arranged on this carrier plate, wherein several of the optical elements are arranged around a shared central region on the carrier plate, and at least two of the optical elements arranged around the central region exhibit primary action axes. These primary action axes are adjusted at a predetermined angle relative to the carrier plate, wherein the primary action axes are directed toward the shared central region. Additional sensors arranged on the carrier plate include a rain sensor, a solar sensor as well as various light sensors, which preferably are arranged on receiving surfaces of the carrier plate.

Sensor arrangement for detecting ambient conditions

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Vollersode, Germany

Olaf Lüdtke