Device for operating a windshield wiper in intermittent and continuous modes
First Claim
1. An improved device for operating a windshield wiper in the intermittent and continuous modes, the device having at least one sensor that emits signals, depending on the moisture coating or the amount of rain on a windshield to be cleaned, and having an electronic control system for controlling the windshield wiper operation in dependence on the sensor signals, wherein the improvement comprises:
- the electronic control system includes evaluating mechanism means (14) for recording the number of sensor signals (E) per wiping interval (WP) as a control signal, and changeover device means (21,
22) for switching between the intermittent mode and the continuous mode, depending on whether at least one threshold value (S1, S2) is exceeded or not reached by the control signal (n) or a signal (M1, M2) that is derived from control signals.
1 Assignment
0 Petitions
Accused Products
Abstract
Proposed is a device for operating a windshield wiper in the intermittent and continuous modes. To do this, at least one sensor (12) is provided, which emits signals in dependence on the coat of moisture or the amount of rain on a windshield to be cleaned, as well as an electronic control (16) for operating the windshield wiper (11) in dependence of the signal from sensor (12). The number for the sensor signals (E) per wiping interval (WP) is recorded as control signal (n) in one evaluating mechanism (14). Furthermore and depending on whether at least one threshold value (S1, S2) is exceeded or not reached by the control signal (n) or a signal (M1, M2), derived from control signals, there is a changeover between intermittent and continuous modes by means of a changeover device (21, 22).
21 Citations
20 Claims
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1. An improved device for operating a windshield wiper in the intermittent and continuous modes, the device having at least one sensor that emits signals, depending on the moisture coating or the amount of rain on a windshield to be cleaned, and having an electronic control system for controlling the windshield wiper operation in dependence on the sensor signals, wherein the improvement comprises:
the electronic control system includes evaluating mechanism means (14) for recording the number of sensor signals (E) per wiping interval (WP) as a control signal, and changeover device means (21,
22) for switching between the intermittent mode and the continuous mode, depending on whether at least one threshold value (S1, S2) is exceeded or not reached by the control signal (n) or a signal (M1, M2) that is derived from control signals.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device for operating a windshield wiper, comprising:
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a sensor to sense water on the windshield and generate a sensor signal in response thereto; a motor, operatively connected to the windshield wiper, to move the windshield wiper back and forth in windshield wiper cycles; an electronic control unit to drive the motor in an intermittent mode or a continuous mode in response to control unit input signals; and means for generating the control unit input signals in response to the sensor signal, the means for generating including evaluating means for evaluating the sensor signal during each of a sequence of windshield wiper cycles to ascertain the amount of water sensed in each windshield wiper cycle of the sequence. - View Dependent Claims (18, 19, 20)
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Specification