Patent ID: 6743298
Filing Date: 2004-06-01
Classification: B60S,Y10S

Abstract:
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.