Apparatus for controlling and sensing moisture on a movable closure member, more particularly an electrically powered automotive window pane
First Claim
1. An apparatus for controlling and sensing a closure member movable between an open position and a closed position, more particularly an electrically powered window pane in a motor vehicle, comprising:
- a sensor having a sensor electrode generating an electric field in an opening range of the closure member and a controller connected to the sensor and detecting any change in capacitance of the sensor electrode in providing a control signal, the controller detecting a change in capacitance of the sensor electrode on the basis of the presence of film of moisture on the closure member.
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Accused Products
Abstract
An apparatus for controlling and sensing a closure member (20) movable between an open position and a closed position, more particularly an electrically powered window pane (20) of a motor vehicle (10) is provided with a sensor. The sensor comprises a sensor electrode (40) generating an electric field (F) in an opening range of the closure member (20) and a controller (22) connected to the sensor which senses any change in capacitance of the sensor electrode (40) in providing a control signal. For detecting a film of moisture (23) formed by condensation on the closing member (20) by simple and relatively low-cost means, the controller (22) detects a change in capacitance of the sensor electrode (40) caused by the presence of a film of moisture (23) on the closure member (20).
52 Citations
12 Claims
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1. An apparatus for controlling and sensing a closure member movable between an open position and a closed position, more particularly an electrically powered window pane in a motor vehicle, comprising:
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a sensor having a sensor electrode generating an electric field in an opening range of the closure member and a controller connected to the sensor and detecting any change in capacitance of the sensor electrode in providing a control signal, the controller detecting a change in capacitance of the sensor electrode on the basis of the presence of film of moisture on the closure member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification