AU2001244473A1 - Method and apparatus for measuring the set-up angles of a motor vehicle, in particular the toe-in and camber angles of the wheels - Google Patents

Method and apparatus for measuring the set-up angles of a motor vehicle, in particular the toe-in and camber angles of the wheels

Info

Publication number
AU2001244473A1
AU2001244473A1 AU2001244473A AU4447301A AU2001244473A1 AU 2001244473 A1 AU2001244473 A1 AU 2001244473A1 AU 2001244473 A AU2001244473 A AU 2001244473A AU 4447301 A AU4447301 A AU 4447301A AU 2001244473 A1 AU2001244473 A1 AU 2001244473A1
Authority
AU
Australia
Prior art keywords
angles
videocameras
videocamera
camber
wheel
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001244473A
Inventor
Flavio Colombo
Alessandro Ratti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gieffe Immobiliare SNC di Gianfranco Crosta and C
Original Assignee
GIEFFE IMMOBILIARE SNC DI GI
Gieffe Immobiliare SNC di Gianfranco Crosta and C
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 GIEFFE IMMOBILIARE SNC DI GI, Gieffe Immobiliare SNC di Gianfranco Crosta and C filed Critical GIEFFE IMMOBILIARE SNC DI GI
Publication of AU2001244473A1 publication Critical patent/AU2001244473A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/26Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/275Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
    • G01B11/2755Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment using photoelectric detection means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/10Wheel alignment
    • G01B2210/12Method or fixture for calibrating the wheel aligner
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/10Wheel alignment
    • G01B2210/14One or more cameras or other optical devices capable of acquiring a two-dimensional image
    • G01B2210/143One or more cameras on each side of a vehicle in the main embodiment
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/10Wheel alignment
    • G01B2210/26Algorithms, instructions, databases, computerized methods and graphical user interfaces employed by a user in conjunction with the wheel aligner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

Method for checking the set-up of the suspension of motor vehicles, in particular for measuring the total toe-in and camber angles of the wheels. Two or preferably four videocameras in predetermined fixed positions are used, said videocameras being able to define a fixed spatial reference system, each videocamera being associated with a respective wheel. The method comprises the steps of: identifying, for each wheel, its profile projected onto the optical sensor plane of the respective videocamera, as the locus of the points of greatest variation in luminous intensity; calculating mathematically, using the least square fit method, the conic section which best approximates the profile thus obtained; calculating, from the equation of this conic section and from the known coordinates of the position of the videocameras in the fixed spatial system, the two angles which define - with respect to a vertical longitudinal plane and with respect to a horizontal plane - the orientation of a bundle of parallel planes which intersect, in the form of a set of circles, the cone obtained projecting into space the conic section "viewed" by the videocamera, these angles representing the total toe-in and the camber of the wheel, respectively.
AU2001244473A 2000-04-12 2001-04-11 Method and apparatus for measuring the set-up angles of a motor vehicle, in particular the toe-in and camber angles of the wheels Abandoned AU2001244473A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2000MI000806A IT1317227B1 (en) 2000-04-12 2000-04-12 PROCEDURE AND EQUIPMENT FOR THE MEASUREMENT OF THE CORNERS OF A CAR VEHICLE, IN PARTICULAR OF CONVERGENCE AND CHAMBER OF THE
ITMI200A000806 2000-04-12
PCT/IB2001/000613 WO2001077617A1 (en) 2000-04-12 2001-04-11 Measuring vehicle wheel alignment with video cameras and repeated approximation calculations

Publications (1)

Publication Number Publication Date
AU2001244473A1 true AU2001244473A1 (en) 2001-10-23

Family

ID=11444835

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001244473A Abandoned AU2001244473A1 (en) 2000-04-12 2001-04-11 Method and apparatus for measuring the set-up angles of a motor vehicle, in particular the toe-in and camber angles of the wheels

Country Status (6)

Country Link
EP (1) EP1281041B1 (en)
AT (1) ATE310228T1 (en)
AU (1) AU2001244473A1 (en)
DE (1) DE60115013T2 (en)
IT (1) IT1317227B1 (en)
WO (1) WO2001077617A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0202870A (en) * 2002-07-25 2004-05-25 Meritor Do Brasil Ltda Divisao Wheel shape and alignment control system and wheel alignment and control process
DE102004013441A1 (en) * 2004-03-18 2005-10-13 Beissbarth Gmbh Measuring method and measuring device for determining the spatial position of a wheel rim and wheel alignment device
US7538864B2 (en) 2005-03-24 2009-05-26 Hunter Engineering Company Vehicle wheel alignment system scanned beam imaging sensor
ITFI20060196A1 (en) 2006-08-04 2008-02-05 Fasep 2000 S R L METHOD AND DEVICE FOR MEASURING WITHOUT CONTACT WITH WHEEL ALIGNMENT OF MOTOR VEHICLES
DE102006041821A1 (en) * 2006-09-06 2008-03-27 Beissbarth Gmbh Method for the relative positioning of a measuring object and a motor vehicle to a measuring device and measuring device and chassis measuring device
EP3060879B1 (en) * 2013-10-22 2021-09-22 Arora, Pooja Optical device and method for wheel alignment
CN113645390B (en) * 2021-08-20 2023-07-21 重庆交通大学 River benthonic animal investigation statistical means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948573A1 (en) * 1979-12-03 1981-06-04 Siemens AG, 1000 Berlin und 8000 München Contactless measurement of vehicle wheel and steering geometry - uses electronic evaluation of elliptical video images of wheels
DE69622530T2 (en) * 1996-04-23 2003-03-06 G.S. S.R.L., Correggio Procedure for determining vehicle wheel alignment
US5812256A (en) * 1996-08-13 1998-09-22 Merilab, Inc. Vision system for wheel alignment

Also Published As

Publication number Publication date
ATE310228T1 (en) 2005-12-15
WO2001077617A1 (en) 2001-10-18
WO2001077617A8 (en) 2002-01-03
ITMI20000806A1 (en) 2001-10-12
EP1281041A1 (en) 2003-02-05
DE60115013T2 (en) 2006-08-10
EP1281041B1 (en) 2005-11-16
DE60115013D1 (en) 2005-12-22
ITMI20000806A0 (en) 2000-04-12
IT1317227B1 (en) 2003-05-27

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