Patent ID: 8963464
Filing Date: 2015-02-24
Classification: B60S

Abstract:
1. A control device ( 160 ) for controlling a drive unit ( 120 ) for at least one wiper arm ( 140 ) of a vehicle windshield wiper system ( 100 ), the control device ( 160 ) being designed to determine at least one load variable (L) of the drive unit ( 120 ) and to set the wiping frequency (WH) of the wiper arm ( 140 ) on the basis of a ratio of the determined load variable (L) to at least one load threshold value (LS), characterized in that the control device ( 160 ) is designed to perform the setting of the wiping frequency (WH) depending on a present traveling velocity (v) of the vehicle, and wherein the control device ( 160 ) is designed to determine the load variable (L) on the basis of a model which simulates a present load state of the drive unit ( 120 ), the control device ( 160 ) further being designed to reduce the wiping frequency (WH) when the load variable (L) determined in the process exceeds a predetermined load threshold value (LS).