Patent ID: 9469275
Filing Date: 2016-10-18
CPC Classification: B60S

Claim Text:
1. A device for actuating a wiper system, having a drive unit ( 2 ) for driving at least one wiper arm ( 4 ), and having a control unit ( 6 ), characterized in that the control unit ( 6 ) sets a wiping frequency of the wiper arm as a function of a load variable which is dependent on the torque which is to be applied by the drive unit ( 2 ) during a wiping operation; wherein the control unit ( 6 ) reduces the wiping frequency of the wiper arm ( 4 ), from a first wiping frequency (WH 1 ) to a second reduced wiping frequency (WH 2 ) if the load variable exceeds a load threshold for a predefined time period (DT) or a predefined number of wiping cycles, and sets the wiping frequency of the wiper arm ( 4 ) to the first wiping frequency (WH 1 ) after a second load threshold has been undershot.