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Automobile wheel positioner TDOF (three degrees of freedom) calibrating system with extended wide-area visual field space

A calibration system and aligner technology, applied in wheel testing, instruments, measuring devices, etc., can solve problems such as undiscovered reports, and achieve the effects of fewer machining processes, adjustable position and angle, and reliable performance

Inactive Publication Date: 2013-11-06
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, no relevant reports have been found at home and abroad

Method used

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  • Automobile wheel positioner TDOF (three degrees of freedom) calibrating system with extended wide-area visual field space
  • Automobile wheel positioner TDOF (three degrees of freedom) calibrating system with extended wide-area visual field space
  • Automobile wheel positioner TDOF (three degrees of freedom) calibrating system with extended wide-area visual field space

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0030] The invention adopts the structure of longitudinal and transverse guide rails and a rotary workbench, so that the calibration plate can move at any position and angle in the space determined by the wheelbase and wheelbase of the automobile, and when the calibration plate is in each moving position, the calibration plate can be calibrated by the sensor. The world coordinates of the feature points on the board relative to the origin of the initial world coordinate system realize the purpose of extending the small calibration board in the wide field of view space. The system has the characteristics of small size, adjustable position and angle of the calibration plate, easy operation, reliable performance, strong versatility, easy installation, low manufacturing cost and high precision. A three-degree-of-freedom calibration system for automobile wheel aligners...

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PUM

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Abstract

The invention discloses an automobile wheel positioner TDOF (three degrees of freedom) calibrating system with an extended wide-area visual field space and aims at solving the problem that a visual detection system cannot perform calibration in a large visual field space determined by the wheel span and axle base of an automobile. The system comprises a bottom plate (1), a longitudinal guide rail (2), a sliding block (3), a transversal connecting plate (4), a transversal guide rail (5), a calibration board (6), a stay wire displacement sensor (7), a sensor mounting rack (8), a workbench connecting seat (9), a calibration board connecting seat (10) and a workbench (11).

Description

technical field [0001] The invention relates to a calibration device in the field of the automobile industry, more specifically, it relates to a three-degree-of-freedom calibration system for an automobile wheel aligner extended in a wide field of view space. Background technique [0002] In order to ensure the handling stability of the car, the installation between the wheels, steering knuckle and axle shaft of the car has a certain relative position, which is called wheel alignment. Whether the vehicle wheel parameters are accurate or not has an important impact on the driving safety, handling stability and fuel economy of the vehicle. The wheel aligner is an important testing device for checking the safety of the vehicle. At present, there are more than 30,000 wheel aligners in the country alone, and the number is increasing at an annual rate of 30%. [0003] Stereo vision measurement of wheel alignment parameters can realize non-contact detection, and the vision system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/013G01B11/00
Inventor 徐观苏建李晓韬邹秀清蓝志坤潘洪达张立斌陈熔刘玉梅戴建国林慧英苏丽俐王秀刚田广东张栋林宫海彬曹晓宁牛贝妮
Owner JILIN UNIV
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