基于模糊層次分析法的汽車駕駛性主觀評價
發(fā)布時間:2018-03-25 10:01
本文選題:模糊層次分析法 切入點(diǎn):駕駛性 出處:《中國工程機(jī)械學(xué)報》2016年02期
【摘要】:基于模糊層次分析方法(Fuzzy Analytic Hierarchy Process,FAHP),構(gòu)建汽車駕駛性綜合評價指標(biāo)體系和層次分析結(jié)構(gòu)模型,重點(diǎn)分析駕駛性評價的5個主要方面:全負(fù)荷響應(yīng)、部分負(fù)荷響應(yīng)、加速踏板感覺、換擋平順性以及發(fā)動機(jī)"啟/停"與"急踩/松加速踏板"兩種工況下的瞬態(tài)響應(yīng),并據(jù)此建立評價準(zhǔn)則層和指標(biāo)層.采用成對比較法獲得模糊一致判斷矩陣,計(jì)算出準(zhǔn)則層和指標(biāo)層的各評價指標(biāo)權(quán)重系數(shù).對某三款C級別乘用車型進(jìn)行主觀評價道路試驗(yàn),駕評人員對各車型底層指標(biāo)進(jìn)行主觀評分,結(jié)合已確定的準(zhǔn)則層和指標(biāo)層權(quán)重系數(shù),得到整車駕駛性模糊綜合評分.研究結(jié)果表明:所構(gòu)建的綜合評價指標(biāo)體系與層次分析模型可以客觀準(zhǔn)確地反映駕駛性多指標(biāo)評價特征;指標(biāo)權(quán)重系數(shù)的確定及重要性標(biāo)度排序識別了駕駛性關(guān)鍵影響因素;通過對某三款C級別乘用車型進(jìn)行道路試驗(yàn)和模糊綜合評價,提出了各車型的設(shè)計(jì)特征、存在問題及改進(jìn)方向,實(shí)例分析表明了模糊層次分析法應(yīng)用于汽車駕駛性綜合評價的有效性和實(shí)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.
【作者單位】: 同濟(jì)大學(xué)新能源汽車工程中心;
【分類號】:U461
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本文編號:1662626
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