WO2005062983A3 - Apparatus for sensing vehicle seat position - Google Patents

Apparatus for sensing vehicle seat position Download PDF

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Publication number
WO2005062983A3
WO2005062983A3 PCT/US2004/043688 US2004043688W WO2005062983A3 WO 2005062983 A3 WO2005062983 A3 WO 2005062983A3 US 2004043688 W US2004043688 W US 2004043688W WO 2005062983 A3 WO2005062983 A3 WO 2005062983A3
Authority
WO
WIPO (PCT)
Prior art keywords
effect device
hall effect
magnetic field
target
magnet
Prior art date
Application number
PCT/US2004/043688
Other languages
French (fr)
Other versions
WO2005062983A2 (en
Inventor
David L Becker
Phillip J Shandilis
Aaron M Mills
Original Assignee
Trw Automotive Us Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trw Automotive Us Llc filed Critical Trw Automotive Us Llc
Publication of WO2005062983A2 publication Critical patent/WO2005062983A2/en
Publication of WO2005062983A3 publication Critical patent/WO2005062983A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/147—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable

Abstract

A sensor (80) for sensing the position of a ferromagnetic target (82) relative to the sensor includes a Hall effect device (184) responsive to a change in a magnetic field (240) acting on the Hall effect device. A magnet (182) produces a magnetic field (240) that acts on the Hall effect device (184). The target (82) changes the magnetic field (240) acting on the Hall effect device (184) as the position of the target relative to the sensor (80) changes. First and second flux collectors (186 and 190) are located on one side (194) of the magnet (182) for concentrating the magnetic field (240) on the Hall effect device (184) . A third flux collector (192) is located on a second side (196) of the magnet (182) opposite the one side (194) for reducing the reluctance of a magnetic flux path through the target (82).
PCT/US2004/043688 2003-12-23 2004-12-22 Apparatus for sensing vehicle seat position WO2005062983A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/745,273 US6870366B1 (en) 2003-12-23 2003-12-23 Apparatus for sensing vehicle seat position
US10/745,273 2003-12-23

Publications (2)

Publication Number Publication Date
WO2005062983A2 WO2005062983A2 (en) 2005-07-14
WO2005062983A3 true WO2005062983A3 (en) 2005-12-29

Family

ID=34274875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/043688 WO2005062983A2 (en) 2003-12-23 2004-12-22 Apparatus for sensing vehicle seat position

Country Status (2)

Country Link
US (1) US6870366B1 (en)
WO (1) WO2005062983A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0316122B1 (en) * 2002-11-12 2013-08-06 "Position sensor and sliding vehicle seat system".
JP4108531B2 (en) * 2003-05-07 2008-06-25 アルプス電気株式会社 Member position detection device
DE112005002191T5 (en) * 2004-09-08 2007-10-11 TK Holdings Inc., Farmington Hills Seat weight sensor
US20100123302A1 (en) * 2008-11-18 2010-05-20 Ford Global Technologies, Llc Inductive vehicle seat position sensor assembly
US8882200B2 (en) 2009-09-29 2014-11-11 Lear Corporation Seat assembly having a soft latch mechanism
US8831839B2 (en) 2012-01-17 2014-09-09 Ford Global Technologies, Llc Method and apparatus for determining position of motor vehicle seat
JP6735603B2 (en) * 2016-05-25 2020-08-05 三菱電機株式会社 Biological information detector
KR20230042004A (en) * 2020-06-24 2023-03-27 모투스 랩스, 엘엘씨 Magnetic field detection device, system and method
US20220204035A1 (en) * 2020-12-28 2022-06-30 Hyundai Mobis Co., Ltd. Driver management system and method of operating same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204158A (en) * 1977-04-20 1980-05-20 U.S. Philips Corporation Hall effect position detector using a single permanent magnet
US6095555A (en) * 1999-05-12 2000-08-01 Trw Inc. Apparatus for sensing a forward position of a vehicle seat

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156191A (en) 1977-10-20 1979-05-22 Gulf & Western Manufacturing Company Method and apparatus for adjusting the magnetic coupling between a Hall Effect switch and a permanent magnet
US5500589A (en) 1995-01-18 1996-03-19 Honeywell Inc. Method for calibrating a sensor by moving a magnet while monitoring an output signal from a magnetically sensitive component
US5644225A (en) 1996-04-16 1997-07-01 Honeywell Inc. Method for calibrating an angular position sensor
US6127821A (en) 1997-06-02 2000-10-03 The Cherry Corporation System for adjusting a magnetic sensor to detect the presence of ferrous objects
KR20010072038A (en) 1998-07-24 2001-07-31 추후보정 Displacement detector
DE10013196B4 (en) 2000-03-17 2004-02-26 Festo Ag & Co. Position detection device
US20020093332A1 (en) 2001-01-18 2002-07-18 Thaddeus Schroeder Magnetic field sensor with tailored magnetic response
US6577123B2 (en) 2001-06-04 2003-06-10 Delphi Technologies, Inc. Linear position sensor assembly
US6693421B2 (en) 2001-07-26 2004-02-17 Ronald J. Wolf Position sensor assembly utilizing magnetic field variations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204158A (en) * 1977-04-20 1980-05-20 U.S. Philips Corporation Hall effect position detector using a single permanent magnet
US6095555A (en) * 1999-05-12 2000-08-01 Trw Inc. Apparatus for sensing a forward position of a vehicle seat

Also Published As

Publication number Publication date
US6870366B1 (en) 2005-03-22
WO2005062983A2 (en) 2005-07-14

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