Apparatus for sensing vehicle seat position

Details Apparatus for sensing vehicle seat position Apparatus for sensing vehicle seat position

2005-07-26

2005-07-26

Dickson, Paul N. (Department: 3616)

Land vehicles

Wheeled

Attachment

C324S207200

Reexamination Certificate

active

06921107

ABSTRACT:
An apparatus (10) for sensing the position of a vehicle seat (12) movable between a forward position and a rearward position includes a Hall effect device (80) and a magnet (82) that produces a magnetic field that acts on the Hall effect device. A member (100) is constructed of a ferromagnetic material and has a portion (110) positioned adjacent the magnet (82). The portion (110) has a size that is unique for every different position of the vehicle seat (12) between the forward and rearward positions. The portion (110) of the member (100) alters the flux path of the magnetic field which varies the portion of the magnetic field acting on the Hall effect device (80) to a degree that depends on the size of the portion. The Hall effect device (80) provides a signal functionally related to the magnitude of the magnetic field acting on the Hall effect device.

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Research Disclosure, Jul., 1993 pp. 450-451.
Co-pending U.S. Appl. No. 09/863,858, filed May 23, 2001 entitled “Vehicle Seat Position Sensing Apparatus”.

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