Window opening and closing controller
A window opening and closing controller for stably detecting jamming without having any influence on jamming load even when power voltage is changed is to be provided. In a window opening and closing controller for detecting jamming of a foreign substance on the basis of a comparing result of a changing amount of the rotational speed of a motor for opening and closing a window and a predetermined threshold value, and controlling the operation of the motor so as to open the window when there is jamming, the threshold value is constructed by a first threshold value at a normal time and a second threshold value as a reference gentler than this first threshold value. The threshold value is changed from the first threshold value to the second threshold value on the basis of the detection of closing of a door. The threshold value is returned from the second threshold value to the first threshold value on the basis of the detection of the rotation of the motor by a predetermined rotating amount in a state in which the threshold value is set to the second threshold value.
1. A window opening and closing controller comprising:
detecting means for detecting rotational speed of a motor for opening and closing a window;
judging means for judging whether or not a foreign substance is jammed into the window on the basis of a comparing result of a changing amount of the rotational speed detected by said detecting means and a predetermined threshold value; and
control means for controlling operations of said motor so as not to close the window when it is judged by said judging means that the foreign substance is jammed;
wherein said threshold value is set to a first threshold value or a second threshold value;
wherein the window opening and closing controller further comprises:
threshold value changing means for changing said threshold value from the first threshold value to the second threshold value on the basis of the detection of closing of an opening and closing portion of a door;
threshold value returning means for returning said threshold value from the second threshold value to the first threshold value on the basis of the detection of the rotation of said motor by a predetermined rotating amount in a state in which said threshold value is set to the second threshold value;
wherein the closing of said opening and closing portion is detected by an acceleration sensor,
said threshold value changing means changes said threshold value from the first threshold value to the second threshold value when said acceleration sensor detects a constant acceleration or more, and
said threshold value returning means returns said threshold value from the second threshold value to the first threshold value on the basis of the detection of the rotation of said motor by the predetermined rotating amount after said acceleration sensor does not detect the constant acceleration or more.