Device for operating a windshield wiper

A device (10) for operating a windshield wiper (12) is proposed, with a moisture sensor (22) for detecting the wetness of a window that in addition to detecting rain and droplets also detects fog and drizzle. The measured values (Us) of the moisture sensor (22) are allocated incremental values (Ink)...

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Bibliographic Details
Main Authors BUEHREN HARALD, BLITZKE HENRY, MICHENFELDER GEBHARD, KROENINGER MARIO
Format Patent
LanguageEnglish
Published 16.01.2001
Edition7
Subjects
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
PERFORMING OPERATIONS
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
TRANSPORTING
VEHICLES IN GENERAL
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Summary:A device (10) for operating a windshield wiper (12) is proposed, with a moisture sensor (22) for detecting the wetness of a window that in addition to detecting rain and droplets also detects fog and drizzle. The measured values (Us) of the moisture sensor (22) are allocated incremental values (Ink) by the control unit (16). The difference between two successive incremental values (Ink) is to be added, with a sign (+ or -), in the memory (28) to a sum (SIGMA) of differences formed previously in the same way, and when a threshold (S) is reached by the sum (SIGMA) stored in the memory (28), the control unit (16) trips a wiper operating mode.
Bibliography:Application Number: US19990402413