Method and apparatus for determining position of motor vehicle seat
First Claim
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1. Apparatus for moving an automotive vehicle seat along a longitudinal track comprising:
- a motor;
a first sensor sensing rotation of the motor;
a binary sensor changing state when the seat passes a reference position at a mid-point of the track; and
a controller determining a seat position based upon a signal from the first sensor and calibrating the determined seat position based upon a signal from the binary sensor when the seat passes the reference position.
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Abstract
Apparatus for moving an automotive vehicle seat along a track includes a motor, a first sensor sensing rotation of the motor, and a second sensor detecting presence of the seat at a reference position along the track. A controller determines a seat position based upon signals from the first sensor and calibrates the determined seat position based upon a signal from the second sensor indicating that the seat is at the reference position. This allows any error that as accumulated in the seat position as determined by the first sensor to be eliminated each time the seat reaches the known reference position.
13 Citations
19 Claims
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1. Apparatus for moving an automotive vehicle seat along a longitudinal track comprising:
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a motor; a first sensor sensing rotation of the motor; a binary sensor changing state when the seat passes a reference position at a mid-point of the track; and a controller determining a seat position based upon a signal from the first sensor and calibrating the determined seat position based upon a signal from the binary sensor when the seat passes the reference position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Apparatus for sensing position of a seat movable along a longitudinal track by a motor comprising:
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a first sensor detecting rotation of the motor; a binary sensor detecting movement of the seat past a reference position at a mid-point of the track; and a device determining a current position of the seat along the track using the detected motor rotation and calibrating the current position to match the reference position based on a signal from the binary sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of calibrating a seat position sensing system comprising:
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determining a position of a seat along a longitudinal track by measuring rotation of a seat motor; detecting movement of the seat past a reference position at a mid-point of the track using a binary sensor; and calibrating the determined position to match the reference position. - View Dependent Claims (16, 17, 18, 19)
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Specification