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US 7,067,996 B2Granted
Open-and-close control system for openable apparatus
AssigneeAsmo Co., Ltd.
InventorMotoya Yamamoto
Life of this patent
Estimating the term…
Abstract
In an automotive power window system, a controller detects positions of a window glass that moves through driving operation of a motor during the closing operation of a window. The controller reduces a rotation speed of the motor when the window glass reaches a speed altering position. It calculates the amount of reduction in the rotation speed produced by the rotation speed reducing operation. Then, it corrects a rotation speed obtained during the closing operation by compensating for the amount of reduction. It determines whether an obstruction for the closing operation is present based on the corrected rotation speed. If the obstruction is detected, it controls the motor for releasing the obstruction.
Claims18
An open-and-close control system for an openable apparatus driven by a drive motor, comprising
- a drive motor section having a drive motor for opening and closing an openable apparatus;
- an opening-and-closing operation command section that outputs a command signal for opening or closing operation of the openable apparatus;
- a drive motor control section that controls the drive motor for opening or closing the openable apparatus based on the opening or the closing operation command signal;
- a rotation speed detection section that detects a rotation speed of the drive motor;
- a rotation speed alteration section that alters the rotation speed during the closing operation of the openable apparatus;
- and
- an obstruction release control section that determines whether an obstruction is present in the openable apparatus during the closing operation and controls the drive motor for releasing the obstruction according to determination of the presence of the obstruction, wherein
- the obstruction release control section corrects a value related to the rotation speed during the closing operation by compensating for an amount of reduction in the rotation speed produced by rotation speed reducing operation of the rotation speed alteration section, and
- the obstruction release control section performs the obstruction determination based on the corrected value, wherein:
- the value is a rotation speed obtained during the closing operation;
- and
- the obstruction release control section corrects the obtained rotation speed by compensating for the amount of reduction in the rotation speed produced by the rotation speed reducing operation and performs the obstruction determination based on the corrected rotation speed.
9 more elements
An open-and-close control system for an openable apparatus driven by a drive motor, comprising
- a drive motor section having a drive motor for opening and closing an openable apparatus;
- an opening-and-closing operation command section that outputs a command signal for opening or closing operation of the openable apparatus;
- a drive motor control section that controls the drive motor for opening or closing the openable apparatus based on the opening or the closing operation command signal;
- a rotation speed detection section that detects a rotation speed of the drive motor;
- a rotation speed alteration section that alters the rotation speed during the closing operation of the openable apparatus;
- and
- an obstruction release control section that determines whether an obstruction is present in the openable apparatus during the closing operation and controls the drive motor for releasing the obstruction according to determination of the presence of the obstruction, wherein
- the obstruction release control section corrects a value related to the rotation speed during the closing operation by compensating for an amount of reduction in the rotation speed produced by rotation speed reducing operation of the rotation speed alteration section,
- the obstruction release control section performs the obstruction determination based on the corrected value,
- the value is a predetermined threshold for the obstruction determination during the closing operation;
- the obstruction release control section corrects the predetermined threshold by compensating for the amount of reduction in the rotation speed produced by the rotation speed reducing operation and performs the obstruction determination based on the corrected predetermined threshold,
- the obstruction release control section calculates a correction value;
- and
- the obstruction release control section corrects the predetermined threshold by adding the correction value thereto.
11 more elements
An open-and-close control system for an openable apparatus driven by a drive motor, comprising
- a drive motor section having a drive motor for opening and closing an openable apparatus;
- an opening-and-closing operation command section that outputs a command signal for opening or closing operation of the openable apparatus;
- a drive motor control section that controls the drive motor for opening or closing the openable apparatus based on the opening or the closing operation command signal;
- a rotation speed detection section that detects a rotation speed of the drive motor;
- a rotation speed alteration section that alters the rotation speed by altering a duty ration of power supplied to the drive motor at a predetermined position during the closing operation of the openable apparatus;
- and
- an obstruction release control section that determines whether an obstruction is present in the openable apparatus during the closing operation and controls the drive motor for releasing the obstruction according to determination of the presence of the obstruction, wherein
- the obstruction release control section corrects a value related to the rotation speed based on the altered duty during the closing operation by compensating for an amount of reduction in the rotation speed produced by rotation speed reducing operation of the rotation speed alteration section, and
- the obstruction release control section performs the obstruction determination based on the corrected value.
6 more elements
Dependencies are inferred from the claim text.