Research On 3E Evaluation And Multi-objective Optimization Of Production Planning For New Energy Vehicles Based On The Whole Life Cycl

The world is facing a series of problems affecting human development caused by energy depletion,environmental degradation and climate warming.As the third largest energy consumption and carbon emissions,the transportation sector is also actively looking for improvement measures to achieve the goal of carbon neutrality.New energy vehicles can significantly reduce energy consumption and pollutant emissions,and can improve and alleviate such environmental problems.Therefore,great attention has been paid to the development of new energy vehicles.Based on the development of new energy vehicles in China,this paper discusses the differences in energy,environment and economy of different new energy vehicles in the whole life cycle,and optimizes the production planning scheme of new energy vehicles.Based on the goal of carbon neutrality in the transportation field,this paper analyzes the sustainable development of new energy vehicles from the perspectives of energy,environment and economy.Research on 3E evaluation of new energy vehicles in the whole life cycle.This paper studies the energy consumption and environmental emissions of different new energy vehicles based on life cycle assessment and GREET model,and analyzes the differences in energy consumption and environmental impact between different power vehicles and traditional fuel vehicles based on the fuel cycle and vehicle cycle,while the life cycle cost is used to study the differences in vehicle economy.Finally,based on energy The development potential of new energy vehicles is comprehensively evaluated by three indicators of environment and economy.The results show that compared with gasoline vehicles,methanol vehicles have higher total energy consumption in the whole life cycle.In terms of greenhouse gas emissions,compared with gasoline vehicles,methanol vehicles and compressed natural gas vehicles reduced 8.79 tons and 12.45 tons respectively.At the same time,the economic benefit of methanol vehicles is better than that of gasoline vehicles(37%),which is the same as the completed pilot projects.In addition,due to the advantages of low modification cost and low fuel price,the user cost of methanol vehicles is lower than that of electric vehicles,which makes methanol vehicles have better development potential compared with electric vehicles and compressed natural gas vehicles in the context of economic orientation and balance.Research on optimization of production plan of new energy vehicles.Based on fuzzy multi-objective optimization,this paper establishes an optimization model with enterprises as the main body,and takes into account the two objectives of enterprises to obtain maximum profits and minimum carbon emissions of automobile production,so as to find out the optimal production of new energy vehicles.The research results show that from 2022 to 2025,through multi-objective optimization calculation,the average decrease in annual carbon emissions during the automotive manufacturing phase was 38.76%,achieving significant emission reduction effects.The output of new energy vehicles in different price ranges has different proportions.The market share of BEVs with a price below 10 w yuan is the highest,accounting for 39% of the BEVs market;The proportion of PHEVs and BEVs with a capacity of more than 30 w is increasing year by year,which indicates that the middle and high-end models are becoming the main sales force in the new energy vehicle market.The sensitivity analysis further reflects the impact of government subsidy "recession" and body lightweight on the output,carbon emissions and corporate profits of new energy vehicles.To sum up,new energy vehicles have the advantages of sustainable development,and there is still a long way to go to achieve the goal of carbon neutrality in the field of transportation.It is suggested that the Chinese government coordinate with enterprises to plan the production and development of new energy vehicles,coordinate the relationship between the pursuit of profits and environmental responsibility,and gradually increase the penetration rate of new energy vehicles.