CAJ | 학술논문

针对电动助力转向(Electric power steering,EPS)系统进行整车转向感觉主观评价试验,分别对转向轻便性、回正性、中间位置转向和移线性能转向感觉客观评价指标进行分析.由于单个指标与驾驶员整体转向感觉评价之间并没有直接的对应关系.通过主成分分析的方法,获得互不相关的客观综合评价指标,将主观转向感觉量化为客观评价指标值,并且对客观评价指标与驾驶员主观评价进行相关性检验,检验EPS转向感觉客观评价指标的合理性和可靠性.转向感觉客观评价指标的确定便于对EPS转向感觉进行系统全面的评定,提高设计的可预见性.
침대전동조력전향(Electric power steering,EPS)계통진행정차전향감각주관평개시험,분별대전향경편성、회정성、중간위치전향화이선성능전향감각객관평개지표진행분석.유우단개지표여가사원정체전향감각평개지간병몰유직접적대응관계.통과주성분분석적방법,획득호불상관적객관종합평개지표,장주관전향감각양화위객관평개지표치,병차대객관평개지표여가사원주관평개진행상관성검험,검험EPS전향감각객관평개지표적합이성화가고성.전향감각객관평개지표적학정편우대EPS전향감각진행계통전면적평정,제고설계적가예견성.
Based on the electric power steering(EPS)system,subjective evaluation tests of complete vehicle steering feel are carried out.The steering feel objective evaluation indexes such as steering portability,returnability,middle position steering and lane change steering are analyzed respectively.As there is no direct corresponding relation between a single index and the driver'S whole steering feel,the principal component analysis(PCA)method is chosen to obtain uncorrelated objective comprehensive evaluation indices,the subjective steering feel is quantified to objective evaluation index value:The objective evaluation index is validated by drivers'subjective evaluation.The objective indices make it possible to benchmark EPS steering feel characteristics entirel y and improve the prediction in EPS design.