基于模糊层次分析法的汽车驾驶性主观评价

发布时间：2018-03-25 10:01

  本文选题：模糊层次分析法　切入点：驾驶性　出处：《中国工程机械学报》2016年02期

【摘要】：基于模糊层次分析方法(Fuzzy Analytic Hierarchy Process,FAHP),构建汽车驾驶性综合评价指标体系和层次分析结构模型,重点分析驾驶性评价的5个主要方面:全负荷响应、部分负荷响应、加速踏板感觉、换挡平顺性以及发动机"启/停"与"急踩/松加速踏板"两种工况下的瞬态响应,并据此建立评价准则层和指标层.采用成对比较法获得模糊一致判断矩阵,计算出准则层和指标层的各评价指标权重系数.对某三款C级别乘用车型进行主观评价道路试验,驾评人员对各车型底层指标进行主观评分,结合已确定的准则层和指标层权重系数,得到整车驾驶性模糊综合评分.研究结果表明:所构建的综合评价指标体系与层次分析模型可以客观准确地反映驾驶性多指标评价特征;指标权重系数的确定及重要性标度排序识别了驾驶性关键影响因素;通过对某三款C级别乘用车型进行道路试验和模糊综合评价,提出了各车型的设计特征、存在问题及改进方向,实例分析表明了模糊层次分析法应用于汽车驾驶性综合评价的有效性和实用性.
[Abstract]:Based on the fuzzy Analytic Hierarchy process analysis method, a comprehensive evaluation index system of automobile driving performance and a hierarchical analysis structure model are constructed. Five main aspects of driving performance evaluation are emphatically analyzed: full load response, partial load response, acceleration pedal feeling, etc. The gearshift comfort and the transient response of the engine under "start / stop" and "pressing / loosening accelerator pedal" are analyzed. Based on this, the evaluation criterion layer and index layer are established, and the fuzzy consistent judgment matrix is obtained by using pairwise comparison method. The weight coefficients of each evaluation index of the criterion layer and the index layer are calculated. The subjective evaluation road test is carried out on a certain three C-class passenger vehicles, and the driver assessors carry out subjective evaluation on the bottom indicators of each vehicle model. Combined with the established weight coefficients of the criterion and indicator layers, The result shows that the comprehensive evaluation index system and AHP model can objectively and accurately reflect the characteristics of multi-index evaluation of driving. The determination of index weight coefficient and the ranking of importance scale identify the key influencing factors of driving, through the road test and fuzzy comprehensive evaluation of three C-class passenger vehicles, the design characteristics of each type are put forward. The existing problems and improvement direction are analyzed by examples. The effectiveness and practicability of fuzzy analytic hierarchy process (AHP) applied to the comprehensive evaluation of automobile driving performance are demonstrated.
【作者单位】： 同济大学新能源汽车工程中心;
【分类号】：U461
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本文编号：1662626