Pinch detection apparatus for opening-and-closing member, and opening-and-closing member apparatus
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United States of America Patent
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Mar 22, 2016
Grant Date -
Aug 28, 2014
app pub date -
Jan 9, 2014
filing date -
Feb 28, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A pinch detection apparatus for an opening-and-closing member actuated by a motor, the pinch detection apparatus includes a reference data storage portion calculating load data on the basis of a rotation speed of the motor and an environmental temperature, the reference data storage portion storing the load data and the environmental temperature as reference load data and reference temperature data, respectively, a drive load calculation portion calculating drive load data, and a pinch determination portion configured to determine an occurrence of pinch on the basis of a comparison result obtained by comparing a difference between the reference load data and the drive load data with a threshold, the pinch determination portion configured to correct a relative relation between the difference between the reference load data and the drive load data, and the threshold on the basis of a relative relation between a reference temperature and a drive temperature.
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