Abstract: Taking plug-in hybrid electric buses (PHEB) as the research object, this paper establishes a PHEV equivalent carbon emission model. Based on the pontriagin’s minimum principle (PMP), considering the energy consumption and equivalent carbon emissions of vehicle operation, a global optimal energy management strategy is proposed, and the objective function is solved by the target method. Through simulation analysis, the optimal power distribution and optimal compre- hensive cost are obtained: natural gas consumption per 100 km is 10.33 m 3 , electricity consumption is 49.17 kWh, equivalent carbon emissions are 53.56 kgCO2e, and the comprehensive cost per 100 km is ￥104.33.

Key words: Hybrid electric buses; Carbon emission; Energy management; Pontryagin's minimum principle

摘要： 文章以插电式混合动力公交车（PHEB）为研究对象，建立了当量碳排放模型。基于庞 特里亚金极小值原理（PMP），考虑车辆运行的能耗与当量碳排放，提出了一种全局最优的能 量管理策略，并利用打靶法对目标函数进行求解。通过仿真分析，得到了最佳功率分配和最 优综合成本：百公里天然气消耗 10.33 m 3，电耗 49.17 kWh，当量碳排放 53.56 kgCO2e，百公 里综合成本 104.33 元。

关键词: 混合动力公交车；碳排放；能量管理；庞特里亚金极小值原理