Patent ID: 9294031
Filing Date: 2016-03-22
CPC Classification: E05F,E05Y,H02H,H02P

Claim Text:
1. A pinch detection apparatus for an opening-and-closing member actuated by a motor, the pinch detection apparatus comprising: a reference data storage portion calculating load data on the basis of a rotation speed of the motor and an environmental temperature which are obtained in a case where a closing operation of the opening-and-closing member is performed at a predetermined time, 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 on the basis of the rotation speed of the motor and the environmental temperature which are obtained in a case where the closing operation of the opening-and-closing member is performed after the reference load data is stored; 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 set in order to determine the pinch at the opening-and-closing member, 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 which corresponds to the reference temperature data and a drive temperature which corresponds to the environmental temperature obtained at the closing operation of the opening-and-closing member after the reference load data is stored; and wherein a comparison processing at the pinch determination portion is invalidated in a case where a difference between the reference temperature and the drive temperature is not within a predetermined range.