Robert Boschgmbh

Hubertus Karcher

Florian Tisch

The invention relates to a method for controlling the movement of a wiper blade over a wiping surface, including the steps of moving the wiper blade up and down over the wiping surface between a lower turning position and an upper turning position, detecting a requirement to stop the wiper blade, moving the wiper blade downward into a lower end position and from there upward into a first parking position in the event that a reversing signal is present, and stopping the wiper blade. To this end, the wiper blade is moved into the lower end position only if previously thereto low mechanical resistance against the movement of the wiper blade over the wiping surface was determined.

Wiper control

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

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Buehl, Germany

Hubertus Karcher