WO2011145820A3 - Torque sensor of steering system - Google Patents

Torque sensor of steering system Download PDF

Info

Publication number
WO2011145820A3
WO2011145820A3 PCT/KR2011/003304 KR2011003304W WO2011145820A3 WO 2011145820 A3 WO2011145820 A3 WO 2011145820A3 KR 2011003304 W KR2011003304 W KR 2011003304W WO 2011145820 A3 WO2011145820 A3 WO 2011145820A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnets
axis
torque sensor
output axis
steering system
Prior art date
Application number
PCT/KR2011/003304
Other languages
French (fr)
Other versions
WO2011145820A2 (en
Inventor
Minchul Kang
Original Assignee
Lg Innotek Co., Ltd.
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 Lg Innotek Co., Ltd. filed Critical Lg Innotek Co., Ltd.
Publication of WO2011145820A2 publication Critical patent/WO2011145820A2/en
Publication of WO2011145820A3 publication Critical patent/WO2011145820A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
    • B62D6/10—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/104—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/221—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to steering wheels, e.g. for power assisted steering

Abstract

The present invention relates to a torque sensor including an input axis, an output axis and a torsion bar connecting the input axis to the output axis, the torque sensor characterized by: a plurality of magnets connected to one of the input axis and the output axis of steering system, and axially magnetized for arrangement to a circumferential direction; and a stator including a ring-shaped body connected to one of the input axis and the output axis that is not connected to the plurality of magnets and discretely arranged from the magnets, and a plurality of lugs facing an axial distal end of the magnets, whereby a conventional collector is eliminated to allow a magnetic device to be directly coupled to a stator, thereby providing an operational reliability and structural simplicity.
PCT/KR2011/003304 2010-05-20 2011-05-03 Torque sensor of steering system WO2011145820A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0047265 2010-05-20
KR1020100047265A KR101680898B1 (en) 2010-05-20 2010-05-20 Torque sensor of steering system

Publications (2)

Publication Number Publication Date
WO2011145820A2 WO2011145820A2 (en) 2011-11-24
WO2011145820A3 true WO2011145820A3 (en) 2012-03-01

Family

ID=44992169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/003304 WO2011145820A2 (en) 2010-05-20 2011-05-03 Torque sensor of steering system

Country Status (2)

Country Link
KR (1) KR101680898B1 (en)
WO (1) WO2011145820A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101814804B1 (en) * 2011-04-15 2018-01-30 엘지이노텍 주식회사 Torque sensor
US9347843B2 (en) 2014-08-28 2016-05-24 Bourns, Inc. Low-height sensor for measuring torque angle
KR102264226B1 (en) * 2014-08-29 2021-06-15 엘지이노텍 주식회사 Stator and torque angle sensor module using the same
KR102363168B1 (en) * 2017-04-25 2022-02-15 엘지이노텍 주식회사 Apparatus for sensing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581477B1 (en) * 2000-02-29 2003-06-24 Trw Inc. Torque sensor for a power assist steering system
US20050029819A1 (en) * 2003-08-06 2005-02-10 Osterberg David A. Bi-stable magnetic latch
US20050251311A1 (en) * 2004-01-30 2005-11-10 Burton Anthony W Method and apparatus for controlling an electric assist motor using a modified blending filter
US20070273241A1 (en) * 2006-05-29 2007-11-29 Jtekt Corporation Brushless motor and electric power steering system
US20080283331A1 (en) * 2007-05-15 2008-11-20 Jtekt Corporation Vehicle steering apparatus
US20090322268A1 (en) * 2006-07-31 2009-12-31 Nsk Ltd. Electric power steering apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004020527A (en) * 2002-06-20 2004-01-22 Nippon Soken Inc Torque sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581477B1 (en) * 2000-02-29 2003-06-24 Trw Inc. Torque sensor for a power assist steering system
US20050029819A1 (en) * 2003-08-06 2005-02-10 Osterberg David A. Bi-stable magnetic latch
US20050251311A1 (en) * 2004-01-30 2005-11-10 Burton Anthony W Method and apparatus for controlling an electric assist motor using a modified blending filter
US20070273241A1 (en) * 2006-05-29 2007-11-29 Jtekt Corporation Brushless motor and electric power steering system
US20090322268A1 (en) * 2006-07-31 2009-12-31 Nsk Ltd. Electric power steering apparatus
US20080283331A1 (en) * 2007-05-15 2008-11-20 Jtekt Corporation Vehicle steering apparatus

Also Published As

Publication number Publication date
KR20110127815A (en) 2011-11-28
KR101680898B1 (en) 2016-11-29
WO2011145820A2 (en) 2011-11-24

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