Position initialization for a vehicle power closure system
First Claim
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1. A method of determining an initialization position of a moveable panel on a vehicle that is moved by a motor, comprising the steps of:
- (A) determining that the panel is in a closed position;
(B) energizing the motor to urge the panel toward the closed position to reduce any slack between the motor and the panel; and
(C) determining the initialization position when there is no slack.
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Abstract
A power closure system (40) for a vehicle panel (22, 24) includes position initialization techniques that ensure accurate position initialization. According to this invention, any slack in a coupling (62) between the vehicle panel and a motor (42) for moving the vehicle panel is removed prior to obtaining an initialization position reading when the panel (22, 24) is in a closed position. The inventive arrangement also includes determining a desired torque at which to operate the motor (42) during a position initialization procedure.
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Citations
23 Claims
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1. A method of determining an initialization position of a moveable panel on a vehicle that is moved by a motor, comprising the steps of:
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(A) determining that the panel is in a closed position;
(B) energizing the motor to urge the panel toward the closed position to reduce any slack between the motor and the panel; and
(C) determining the initialization position when there is no slack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for moving a moveable panel, comprising:
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a motor;
a coupling that couples the motor to the panel and includes a varying tension between the motor and the panel;
a position sensor associated with the coupling that provides an indication of the panel position;
an indicator that provides an indication when the panel is in a closed position; and
a controller that energizes the motor responsive the closed position indication to urge the panel toward the closed position to reduce any slack between the motor and the panel, the controller obtaining an initialization position indication from the position sensor when there is no slack. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification