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 wheelsInfo
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/275—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
- G01B11/2755—Measuring 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
- G01B2210/12—Method or fixture for calibrating the wheel aligner
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
- G01B2210/14—One or more cameras or other optical devices capable of acquiring a two-dimensional image
- G01B2210/143—One or more cameras on each side of a vehicle in the main embodiment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
- G01B2210/26—Algorithms, 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.
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)
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)
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 |
-
2000
- 2000-04-12 IT IT2000MI000806A patent/IT1317227B1/en active
-
2001
- 2001-04-11 DE DE60115013T patent/DE60115013T2/en not_active Expired - Lifetime
- 2001-04-11 WO PCT/IB2001/000613 patent/WO2001077617A1/en active IP Right Grant
- 2001-04-11 AT AT01917398T patent/ATE310228T1/en not_active IP Right Cessation
- 2001-04-11 AU AU2001244473A patent/AU2001244473A1/en not_active Abandoned
- 2001-04-11 EP EP01917398A patent/EP1281041B1/en not_active Expired - Lifetime
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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