Research On Measurement And Evaluation System Of Automotive Handling Comfort Based On Mechanical Characteristics

With the development of economy and advancement of human society,more and more attention has been paid to automotive comfort,as well as automotive dynamics and security.Given that automotive testing technologies,such as vibration comfort and riding comfort,have stepped into a relatively mature stage, measuring,evaluating and improving handling comfort has become one of the most important means for enterprises to improve their products competitiveness.In allusion to the deficiencies in the current testing and evaluation system of handling comfort such as unreasonable methods,high cost,low efficiency,and inaccurate results,the mechanical bases of handling comfort and the important influence of the force on the handling comfort have been studied deeply,with the researched object of the human vehicle closed-loop system in the handling process.Moreover, a measurement and evaluation theory system of automotive handling comfort based on mechanical characteristics was established.Then,based on the detailed analysis on the model of automotive inner manipulation organs,the objective evaluation index of abnormal-point number,force-journey rigidity,time rate of force change was established and weights were distributed with the variation coefficient method. Meanwhile,a comprehensive evaluation system according to enterprises' empirical data was established.In the end,combined with the utilization of PISO-813 data acquisition board,a measurement and evaluation system of automotive handling comfort based on mechanical characteristics was established with the object oriented technique,and thus the feasibility of the theory in this paper was validated.