Method for obtaining a criterion for detecting obstacles to the closure of an opening
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United States of America Patent
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Mar 5, 2013
Grant Date -
Dec 23, 2010
app pub date -
Jun 18, 2010
filing date -
Jun 19, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a method for obtaining a criterion for detecting obstacles in a closure movement of a motor-driven opening. The obtaining method includes the step of determining a speed of rotation of a motor shaft and the step of determining a quantity representative of a motor voltage. The detection criterion is then obtained by a step for calculating the criterion according to the speed of rotation of the motor shaft and the quantity representative of the motor voltage. This makes it possible to obtain a criterion, which is both robust and inexpensive, for detecting obstacles in a closure movement of a motor-driven opening.
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