Measurement error analysis of the 3D four-wheel aligner

Qiancheng Zhao; Tianlong Yang; Dongzhao Huang; Xun Ding

doi:10.1117/12.2035870

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10 October 2013 Measurement error analysis of the 3D four-wheel aligner

Qiancheng Zhao, Tianlong Yang, Dongzhao Huang, Xun Ding

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Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 89162C (2013) https://doi.org/10.1117/12.2035870
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China

Abstract

Positioning parameters of four-wheel have significant effects on maneuverabilities, securities and energy saving abilities of automobiles. Aiming at this issue, the error factors of 3D four-wheel aligner, which exist in extracting image feature points, calibrating internal and exeternal parameters of cameras, calculating positional parameters and measuring target pose, are analyzed respectively based on the elaborations of structure and measurement principle of 3D four-wheel aligner, as well as toe-in and camber of four-wheel, kingpin inclination and caster, and other major positional parameters. After that, some technical solutions are proposed for reducing the above error factors, and on this basis, a new type of aligner is developed and marketed, it’s highly estimated among customers because the technical indicators meet requirements well.

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Qiancheng Zhao, Tianlong Yang, Dongzhao Huang, and Xun Ding "Measurement error analysis of the 3D four-wheel aligner", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 89162C (10 October 2013); https://doi.org/10.1117/12.2035870

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