Patent ID: 6100658
Filing Date: 2000-08-08
Classification: B60J,E05F,E05Y,H02H

Abstract:
A window opening and closing apparatus using a motor for opening and closing a window glass disposed on a door, the window opening and closing apparatus comprising:means for detecting a rotational speed of said motor;means for detecting a disturbance factor causing an abnormal change in the rotational speed of said motor besides when the window glass jams an object, said disturbance factor being different from said rotational speed of said motor;disturbance detection means for determining, based on the rotational speed of said motor and on said disturbance factor, that the window has jammed an object; andcontrol means for at least inhibiting, if jamming of said object was determined, the operation of the window glass at the time the jam was determined,wherein said disturbance factor is a door opening or closing operation, and said disturbance detection means is door opening and closing detection means.