Optimized design of cam steering structure for carbon-free car based on Sobol method
SHUI Guomin
ZHAO Wangchu
LI Ce
JIANG Bin
WANG Ruiqing
Abstract：[Objective]The calibration of carbon-free vehicles typically necessitates repeated adjustments to mitigate trajectory deviations,resulting in low operational efficiency.Conducting an error analysis on the vehicle enables tracing the sources of trajectory deviations,thereby facilitating the structural optimization through the error source identification.This approach transforms conventional trial-and-error calibration into a data-driven design methodology.[Methods]Sobol sensitivity analysis was implemented to evaluate structural parameters of the cam steering mechanism.Based on analytical outcomes,the vehicle's structure was optimized,manufacturing methods were adjusted,and the fabrication precision of critical components was enhanced.The optimization effectiveness was subsequently validated through both simulation models and physical prototypes.[Results]The results demonstrate that the optimized vehicle's target acquisition performance is improved significantly,with scoring points increasing from a maximum of 6 to a stable range of 8 to 9.It provides a foundation and engineering insights for performance optimization of both new energy vehicles and carbon-free vehicles.
Keywords：Carbon-free carError analysisCam steering structureGlobal sensitivity analysisStructural optimizationSobol method
Publication Date：2025-09-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 72-78 )