Control device for a windscreen wiper system
First Claim
1. A control device for the drive motor of a windshield-wiper device of a vehicle, particularly a motor vehicle, including:
- a manually-operated wiper switch;
a control circuit means, which is activated by the manually-operated wiper switch, for automatically controlling the drive motor in a switching stage of the wiper switch according to a characteristic curve of wiper speed cycles versus quantity of moisture on the vehicle windshield and as a function of a signal of a rain sensor on the vehicle windshield indicating the quantity of moisture; and
wherein the control circuit means pivots the characteristic curve about an upper end point in response to a switching operation of the manually-operated control element of the wiper switch from said switching stage.
1 Assignment
0 Petitions
Accused Products
Abstract
A control device for the driving motor (10) of a windshield system. A manually operated wiper switch (18) is provided for selecting an operating mode, in at least one of which the wiper speed is automatically controlled by a characteristic curve and the signal from a rain sensor (13). To modify the characteristic curve based on the use of the system by an individual driver, the manually operated wiper switch (18) conveys control commands to an adaptation algorithm control in a control circuit (16). The control circuit (16), in response to switching out of the automatic mode, generates a new characteristic curve at a modified operating point, with the new characteristic curve incorporating the modified operating point. When the switching stage which is dependent on the quantity of rain is again activated, the diving motor (11) is controlled according to the new characteristic curve.
29 Citations
16 Claims
-
1. A control device for the drive motor of a windshield-wiper device of a vehicle, particularly a motor vehicle, including:
- a manually-operated wiper switch;
a control circuit means, which is activated by the manually-operated wiper switch, for automatically controlling the drive motor in a switching stage of the wiper switch according to a characteristic curve of wiper speed cycles versus quantity of moisture on the vehicle windshield and as a function of a signal of a rain sensor on the vehicle windshield indicating the quantity of moisture; and
wherein the control circuit means pivots the characteristic curve about an upper end point in response to a switching operation of the manually-operated control element of the wiper switch from said switching stage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- a manually-operated wiper switch;
Specification