| 电动助力转向的转向感觉客观综合评价 |
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| 引用本文： | 张昕,施国标,林逸.电动助力转向的转向感觉客观综合评价[J].机械工程学报,2009,45(6). |
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| 作者姓名： | 张昕 施国标 林逸 |
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| 作者单位： | 1. 北京交通大学机械与电子控制工程学院,北京,100044
2. 北京理工大学机械与车辆工程学院,北京,100081 |
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| 基金项目： | 国家自然科学基金(50705008);;教育部新教师基金(200800041013)资助项目 |
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| 摘 要： | 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。
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| 关 键 词： | 电动助力转向 转向感觉 客观评价 主成分分析 |
Objective Evaluation of Electric Power Steering Steering Feel |
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| ZHANG Xin,SHI Guobiao,LIN Yi.Objective Evaluation of Electric Power Steering Steering Feel[J].Chinese Journal of Mechanical Engineering,2009,45(6). |
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| Authors: | ZHANG Xin SHI Guobiao LIN Yi |
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| Affiliation: | 1. School of Mechanical Electric and Control Engineering;Beijing Jiaotong University;Beijing 100044;2. School of Mechanical and Vehicular Engineering;Beijing Institute of Technology;Beijing 100081 |
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| Abstract: | 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. |
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| Keywords: | Electric power steering Steering feel Objective evaluation Principal component analysis |
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