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US 6,743,298 B2Granted
Method for cleaning vehicle windows
AssigneeRobert Bosch GmbH
InventorRalf Schmid
Life of this patent
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Abstract
A method for cleaning vehicle windows by means of a wiper with a wiper strip (12), whose wiper lip (16) rests against the vehicle window. The wiper strip (12) is set into oscillations lateral to its longitudinal direction (20) during the wiping operation and/or shortly before it is begun.
Claims6
A method for cleaning vehicle windows, comprising the following steps:
- providing a wiper with a wiper strip (12) with a wiper lip, wherein the wiper lip (16) rests against the vehicle window;
- providing piezoelectric elements disposed parallel to the wiper strip (12), wherein said piezoelectric elements act on a wiper blade rubber (14) in a wiping direction (24) and are controlled by an electronic control unit (30);
- providing a control unit (30);
- activating the piezoelectric elements (10) with the control unit (30) before activating a wiping operation when the wiper is first actuated after the vehicle has been parked and/or at outside temperatures below freezing;
- and
- setting the wiper strip (12) into oscillations lateral to its longitudinal direction (20) during the wiping operation and/or shortly before the wiping operation is begun.
3 more elements
Dependencies are inferred from the claim text.