Patent ID: 7073291
Filing Date: 2006-07-11
Classification: E05F,E05Y

Abstract:
1. A device for automatically controlling an opening and closing of a slide door for a vehicle, wherein the slide door is adapted to open and close along a guide track installed in a body of the vehicle, the device comprising: a drive device having a reversible motor and adapted to drive the slide door, a motor load detection means for detecting a motor load value of the drive device, a position detection means for detecting a position of the slide door guided by the guide track within a range from a position where the slide door is fully opened to a position where the slide door is fully closed, a memory means for storing sampling region motor load values detected by the motor load detection means at various positions of the slide door in respective sampling regions along the guide track in which the door enters as the door moves alone the guide track, a correspondence data study means for correcting, when the motor load detection means detects a new motor load value at a present position of the door, the stored sampling region motor load value stored in the memory means for the sampling region corresponding to the present door position based on said new motor load value by storing the new motor load value as a correction result in the memory means for the sampling region corresponding to the present door position, and a pinch judgment means for reading the stored sampling region motor load value of a sampling region corresponding to a predetermined door position in advance of the sampling region corresponding to the present door position in a door movement direction for calculating a forecast motor load value based on the stored sampling region motor load value of the sampling region corresponding to the predetermined door position and a present motor load value of the present door position, and for judging whether a pinch exists based on a deviation between the forecast motor load value and the present motor load value of the present door position.