Study On Optimization Decision Of New Energy Vehicles

Since 2014,the Chinese government took the subsidy phasing out policy to force the independent innovation and technological advancement of the new energy vehicles(NEVs)manufacturers.The phasing out subsidy created a multi-period decision problem for the NEVs manufacturers and caused the demand fluctuation of NEVs market as well.At the same time,if the producers invest in technological advancement,then technological advancement will increase consumer preference for NEVs.Faced with different level of subsidies in each period,uncertain demand,the manufacturer’s possible technological advancement and the resulting consumer technology preference,the NEVs manufacturer’s goal is to maximize the expected profit maximization by determining the optimal production and optimal selling price of each period.However,how much the NEVs manufacturer produce and how much the selling price in each period should be,how subsidy phasing out,technological advancement,consumer technology preference and other factors will affect the production,the selling price and the expected profit,and how these factors would interact with each other are not known.To answer the above questions,a NEVs manufacturer’s expected profit model considering subsidy phasing out,technological advancement and consumer technology preference is constructed in this paper to analyze the the above questions by developing the traditional newsvendor model based on previous research results.Based on the NEVs manufacturer’s expected profit model,the optimal solution of the selling price and the production are first solved in this paper.Next,we take sensitivity analyses about how subsidy phasing put rate,the degree of technological advancement and consumer technology preference these three kinds of key parameters affect the selling price,the production and the expected profit and the mutual influence between the three key parameters when the related properties are summarized.Again,quantitative measurement of the impact of subsidy phasing out rate,the degree of technological advancement and consumer technology preference on the model are taken by means of comparative analysis.Then,for those results caused by simultaneous change of multiple parameters that can’t be directly distinguished,they are illustrated by numerical experiments in this paper.Finally,this paper summarizes all kinds of properties and summarizes the mechanism of various influence factors in the decision-making process of the NEVs manufacturer.The conclusions of this paper can well describe the decision-making process of the NEVs manufacturer based on the study of model construction,decision variable solutions,sensitivity analysis,comparative analysis,case study and properties induction of the NEVs manufacturer’s decision-making process and further provide scientific decision-making guidance for government departments who formulate subsidy policies for NEVs,NEVs manufacturers and consumers.