The ecological niche evaluation of electric vehicle is a multi-level and multi-attribute decision-making problem with relevance.Considering the relevance and ambiguity of the ecological niche evalua-tion indexes of electric vehicle,this paper designed the evaluation index system of electric vehicle niche and constructed the ecological niche evaluation model of electric vehicle by using fuzzy measure and Cho-quet fuzzy integral operator.Electric vehicle enterprises were chosen as participants to conduct applied re-search on the niche evaluation model.The Choquet fuzzy integral operator is used to describe the correla-tion of the niche evaluation indexes in the model.The model needn't determine the weight of the indica-tors during the decision-making process,and it reduces the subjective assumptions of the decision makers in the decision-making process,w hich renders the sorting results more objective and scientific.%电动汽车企业生态位评价是一个多层次且关联性的多属性决策问题.考虑到电动汽车企业生态位评价指标的关联性和模糊性,设计了电动汽车生态位评价指标体系,并运用模糊测度和Choquet模糊积分算子构建电动汽车生态位评价模型;以4家电动汽车企业为例,对电动汽车企业生态位评价模型进行应用研究.该模型通过Choquet模糊积分算子较好地刻画了生态位评价各指标的关联性,而且决策过程中不需要确定各指标的权重,减少了决策过程中决策者的主观臆断性,使排序结果更具客观性和科学性.
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