Entrapment detecting device for an opening/closing member
First Claim
1. An entrapment detecting device for an opening/closing member comprising:
- a driving means for driving an opening/closing member so as to be moved for opening/closing an opening defined in a fixed member; and
a controlling means for detecting, on a basis of a driving condition of the driving means, an object entrapment between the fixed member and the opening/closing member while the opening/closing member is moving to close the opening;
the controlling means;
memorizing in advance, while a predetermined condition is satisfied, a reference load data corresponding to a load applied to the opening/closing member that is closing the opening;
calculating, after memorizing the reference load data and during another movement of the opening/closing member in a direction for closing the opening, a driving data representing the driving condition of the driving means;
calculating an abnormality detecting data by subtracting from the driving data the reference load data memorized in advance; and
judging, on the basis of the abnormality detecting data, whether an object has been entrapped between the opening/closing member and the fixed member.
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Accused Products
Abstract
An entrapment detecting device for an opening/closing member includes a controller which memorizes a driving condition of a driving unit corresponding to load applied to the opening/closing member as a reference load data when a predetermined condition is satisfied during the movement of the opening/closing member for closing. The controller further calculates a driving data representing the driving condition during the movement of the opening/closing member for closing after memorizing the reference load data, and an abnormality detecting data generated by eliminating the load during the predetermined condition being satisfied from the driving data based upon the driving data and the reference load data, and the controller judges an entrapment based upon the abnormality detecting data.
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Citations
16 Claims
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1. An entrapment detecting device for an opening/closing member comprising:
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a driving means for driving an opening/closing member so as to be moved for opening/closing an opening defined in a fixed member; and
a controlling means for detecting, on a basis of a driving condition of the driving means, an object entrapment between the fixed member and the opening/closing member while the opening/closing member is moving to close the opening;
the controlling means;
memorizing in advance, while a predetermined condition is satisfied, a reference load data corresponding to a load applied to the opening/closing member that is closing the opening;
calculating, after memorizing the reference load data and during another movement of the opening/closing member in a direction for closing the opening, a driving data representing the driving condition of the driving means;
calculating an abnormality detecting data by subtracting from the driving data the reference load data memorized in advance; and
judging, on the basis of the abnormality detecting data, whether an object has been entrapped between the opening/closing member and the fixed member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of detecting an entrapment for an opening/closing member moved for opening/closing an opening defined in a fixed member comprising:
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judging whether the opening/closing member has moved to close the opening;
memorizing in advance, when a predetermined condition has been satisfied, a reference load data corresponding to a load applied to the opening/closing member that is closing the opening;
after memorizing the reference load data and during another movement of the opening/closing member in a direction for closing the opening, calculating a driving data representing a driving condition of the driving means;
calculating an abnormality detecting data by subtracting from the driving data the reference load data memorized in advance; and
judging, on a basis of the abnormality detecting data, whether the predetermined condition has been satisfied, wherein, when the predetermined condition is judged to have been satisfied, the reference load data that has been memorized in advance is updated by the driving data. - View Dependent Claims (14, 15, 16)
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Specification