Patent ID: 7541759
Filing Date: 2009-06-02
Classification: H02H

Abstract:
1. A panel member control system for controlling a panel member that is driven in an opening direction to open an opening of an opening defining member and is driven in a closing direction to close the opening of the opening defining member, the panel member control system comprising: a motor that rotates in a first rotational direction in a first driven state to drive the panel member in the opening direction and rotates in a second rotational direction in a second driven state to drive the panel member in the closing direction; a rotation detecting means for detecting a rotational speed of the motor; and a pinching detecting means for detecting an occurrence of pinching of an object by the panel member when a pinching indicative value, which is obtained based on the rotational speed of the motor detected by the rotation detecting means at the time of driving the motor in the second driven state, exceeds a pinching determination threshold, wherein the pinching detecting means includes: a disturbance detecting means for determining whether the motor is in a disturbed state based on a change in the rotational speed of the motor, which is detected by the rotation detecting means during a period of acceleration of the rotational speed of the motor in the second driven state; and a correcting means for correcting the pinching determination threshold in view of a result of the determination made by the disturbance detecting means, wherein the correcting means corrects the pinching determination threshold based on the rotational speed of the motor, which is detected by the rotation detecting means when the correcting means senses a beginning of subsequent acceleration of the rotational speed of the motor in the second driven state after the result of the determination indicates that the motor is in the disturbed state.