Patent ID: 9079567
Filing Date: 2015-07-14
Classification: B60S

Abstract:
1. A wiper motor control ( 135 ) for controlling a wiper motor ( 130 ) that moves a wiper arm ( 120 ) in a pendulum motion between two turning positions (WL), said wiper motor control ( 135 ) configured to control a speed of the wiper arm ( 120 ) dependent on a position of said wiper arm ( 120 ), characterized in that the speed of the wiper arm ( 120 ) in turning regions (WB), which comprise the turning positions (WL), follows a specified progression ( 210 , 310 , 320 ) independent of the speed of the wiper arm ( 120 ) between the turning regions (WB), wherein the wiper motor ( 130 ) is coupled to the wiper arm ( 120 ) by a crank mechanism ( 125 ) and the wiper motor control ( 135 ) is equipped to maintain the rotational speed of the wiper motor ( 130 ) constant while the wiper arm ( 120 ) is situated in one of the turning regions (WB), and the rotational speed of the wiper motor ( 130 ) between the turning regions (WB) is maintained constant at a lower speed than in the turning regions (WB).