关键词: 插电式混合动力汽车；全生命周期评价；材料资源消耗；化石能源消耗

Abstract: Plug in hybrid electric vehicle (PHEV) is one of the popular models in the field of new energy vehicles. To evaluate the environmental benefits of plug-in hybrid dectric vehicles, this article adopts the theory of full life cycle assessment and selects Toyota Lexus plug-in hybrid electric vehicles as the research object. The material flow and energy flow inventory data are sorted out, and a life cycle assessment model is built based on GaBi software to evaluate their full life cycle material resource consumption and fossil energy consumption. The evaluation results indicate that plug-in hybrid electric vehicles have the highest proportion of material resource consumption in the raw material acquisition stage, with lithium batteries and main reducers consuming the largest amount of material resources. The main reason is that lithium batteries use more metal resources such as lithium and copper than other body components; Plug in hybrid electric vehicles have the highest proportion of fossil energy consumption during operation and use. After comparing nominal fuel with measured fuel, it can be concluded that the significant consumption of fuel and electricity during operation and use is the main reason for the highest proportion of fossil energy consumption during operation and use.

Key words: Plug-in hybrid electric vehicles; Life cycle assessment; Material resource consumption; Fossil energy consumption