Design and Assessment of a Machine Vision System for Automatic Vehicle Wheel Alignment

International Journal of Advanced Robotic Systems

关键词: Machine Vision;    Stereovision;    Wheel Alignment;   

DOI  :  10.5772/55928

学科分类：自动化工程

来源: InTech

【 摘 要 】

Abstract Wheel alignment, consisting of properly checking the wheel characteristic angles against vehicle manufacturers' specifications, is a crucial task in the automotive field since it prevents irregular tyre wear and affects vehicle handling and safety. In recent years, systems based on Machine Vision have been widely studied in order to automatically detect wheels' characteristic angles. In order to overcome the limitations of existing methodologies, due to measurement equipment being mounted onto the wheels, the present work deals with design and assessment of a 3D machine vision-based system for the contactless reconstruction of vehicle wheel geometry, with particular reference to characteristic planes. Such planes, properly referred to as a global coordinate system, are used for determining wheel angles. The effectiveness of the proposed method was tested against a set of measurements carried out using a commercial 3D scanner; the absolute average error in measuring toe and camber angles with the ...

【 授权许可】

CC BY