Wiper control arrangement
AssigneeVolkswagen Aktiengesellschaft
InventorWolfgang Ostrowski
Life of this patent
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Abstract
A wiper control arrangement for vehicles has a motor with a reversible direction of rotation and a driven shaft to which a wiper is rigidly coupled, and a position regulator which receives a wiper drive control signal and a driven shaft position signal detected by a detector of the position of the driven shaft and supplies a regulating variable to the motor. The signal from a vehicle speed sensor and/or wiping angular speed sensor associated with the wiper control arrangement are supplied to the position regulator, the wiper drive control and/or the driven shaft position detector in order to reduce the wiping angle of the wiper at higher speeds of the vehicle and/or higher wiping angular speeds.
Claims9
A wiper control arrangement for vehicles comprising:
- a single drive motor with a reversible direction of rotation;
- a driven shaft to which a wiper is rigidly coupled;
- a detector for detecting the position of the driven shaft;
- a wiper position regulator which receives a wiper drive control signal and an actual driven shaft position signal and supplies a regulating control signal to the drive motor for controlling the wiping speed and wiping angle of the wiper;
- and
- a sensor for detecting at least one of vehicle speed and angular wiping speed and supplying a signal to the position regulator for modifying the regulation control signal so that the wiping angle of the wiper is reduced at at least one of a higher speed of the vehicle and a higher angular wiping speed.
Dependencies are inferred from the claim text.