Efficiency-oriented vehicle relocation of shared autonomous electric fleet in station-based car-sharing system  

作　　者：Ning Wang Hangqi Tian Jiahui Guo Huahua Wu Jian Lyu 

机构地区：[1]School of Automotive Studies,Tongji University,Shanghai 201804,China [2]State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310007,China [3]State Grid Zhejiang Electric Vehicle Service Co.,Ltd.,Hangzhou 310012,China

出　　处：《Journal of Traffic and Transportation Engineering(English Edition)》2024年第4期681-699,共19页交通运输工程学报（英文版）

基　　金：supported by the Science and Technology Project of State Grid Corporation of China“Research on urban power grid dispatching technology for large-scale electric vehicles integration”(grant number 5108202119040A-0-0-00)。

摘　　要：Long waiting delays for users and significant imbalances in vehicle distribution are bothering traditional station-based one-way electric car-sharing system operators.To address the problems above,a“demand forecast-station status judgement-vehicle relocation”multistage dynamic relocation algorithm based on the automatic formation cruising technology was proposed in this study.In stage one,a novel trip demand forecast model based on the long short-term memory network was established to predict users'car-pickup and car-return order volumes at each station.In stage two,a dynamic threshold interval was determined by combining the forecast results with the actual vehicle distribution among stations to evaluate the status of each station.Then vehicle-surplus,vehicleinsufficient,vehicle-normal stations,and the number of surplus or insufficient vehicles for each station were counted.In stage three,setting driving mileage and carbon emission as the optimization objectives,an integer linear programming mathematical model was constructed and the optimal vehicle relocation scheme was obtained by the commercial solver Gurobi.Setting 43 stations and 187 vehicles in Jiading District,Shanghai,China,as a case study,results showed that rapid vehicle rebalancing among stations with minimum carbon emissions could be realized within 15 min and the users’car-pickup and car-return demands could be fully satisfied without any refusal.

关 键 词：Sustainable transportation One-way car-sharing Shared autonomous electric fleet Multistage dynamic relocation algorithm 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程] U491[自动化与计算机技术—控制科学与工程]