Sensor unit for detecting the wetting of a window
First Claim
1. A sensor unit for detecting the wetting of a window, comprising:
- a first sensor for detecting internal wetting, the first sensor being located on the interior of the window; and
a second sensor for detecting external wetting, and is placed on the interior of the window.
1 Assignment
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Accused Products
Abstract
The invention relates to a sensor unit for detecting the wetting of a window. Signals from the condensation sensor are used to control an air conditioning, heating, and/or ventilation unit. The signals of the rain sensor, on the contrary, are used to control a windshield wiper or washing unit for vehicles. A sensor unit, which comprises two sensors, is placed on the interior of the window. In a preferred variant, both are coupled to a common switchable evaluation unit, so that through mutual evaluation of the two sensors or their signals, both incipient condensation on the interior of a vehicle window and the wetting of the exterior, e.g., by rain, is detected. In an improvement of the invention, both sensors are integrated into a sensor module.
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Citations
15 Claims
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1. A sensor unit for detecting the wetting of a window, comprising:
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a first sensor for detecting internal wetting, the first sensor being located on the interior of the window; and
a second sensor for detecting external wetting, and is placed on the interior of the window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for detecting interior and exterior wetting of a window, said method comprising the following steps:
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detecting interior wetting of the window by a first sensor positioned on an interior surface of the window; and
detecting, almost simultaneously, exterior wetting of the window by a second sensor positioned on the interior surface of the window, whereby an evaluation unit receives signals from said first sensor and said second sensor, makes an evaluation and outputs an output, dependent on the evaluation.
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12. A sensor unit being mounted to a first surface of a window, the sensor unit comprising:
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a condensation sensor for detecting wetting of the first surface; and
a rain sensor for detecting wetting of a second surface of a window, wherein the first surface and the second surface of the window are substantially parallel to one another. - View Dependent Claims (13, 14, 15)
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Specification