Windshield wiper system with a self-locking device that is active when the wiper drive is in a non-operating state

US7895702B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Florian Tisch · Lenggries, DE
• Hubertus Karcher · Laufenburg (Baden), DE

Key dates

• Filing date: Sep 25, 2006
• Grant date: Mar 1, 2011
• Expiry date: Jan 22, 2028

Classification

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

Abstract

In order to ensure, when the drive (1) is in a non-operating state, a self-locking that counters a change in position of the wiper (5), an electronically implemented self-locking is provided. To this end, the controller (S) of the wiper system monitors the wiper (5) during the non-operating state of the drive (1) by evaluating the position sensor signals for a change in position and, in response to the position monitoring, activates the drive (1) in order to return the wiper (5) into a set position (U, P).