Device for operating a wiper

US5729106A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Rainer Pientke · Achern, DE
• Hans Meier · Ottersweier, DE
• Henry Blitzke · Laufenburg (Baden), DE

Key dates

• Filing date: May 28, 1996
• Grant date: Mar 17, 1998
• Expiry date: May 28, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S318/02
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A device for operating a windshield wiper, with the device including a sensor for detecting the degree of moistness of a windshield, an evaluator for receiving a signal from the sensor, and a control unit which receives a control signal from the evaluator for operating the windshield wiper if a difference between a reference value and values derived from the sensor signal exceeds a predetermined threshold value. The evaluator includes a detector stage for determining whether the sensor signal or the values derived therefrom lie within a normal range (UGR, OGR), and a selector stage for switching to a predetermined base interval mode of operating of the wipes when the detector stage determines that the sensor signal or the values derived therefrom lie outside of the normal range.