Welcome to Journal of Automotive Safety and Energy,

Journal of Automotive Safety and Energy ›› 2026, Vol. 17 ›› Issue (3): 359-368.DOI: 10.3969/j.issn.1674-8484.2026.03.008

• Automotive Energy Efficiency and Environment Protection • Previous Articles     Next Articles

Spatiotemporal path planning for energy saving of logistics delivery electric vehicles under load-speed coupling

WANG Jianqiang1(), CAO Jianzhong1, TONG Ting1, WANG Feng2   

  1. 1 School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China
    2 Gansu Xinnetcom Technology Information Co., Ltd, Lanzhou 730020, China
  • Received:2026-01-07 Revised:2026-04-05 Online:2026-06-30 Published:2026-07-02

Abstract:

A load (mass) -speed-coupling driven-energy-efficient spatiotemporal path-planning method was proposed to optimize the energy consumption of electric vehicles in logistics distribution. A load-space-time state network was constructed to characterize vehicle distribution paths in the spatiotemporal domain. The energy consumption of each arc was formulated by integrating a comprehensive power-based energy consumption model (CPEM). Functional relationship between energy consumption and speed was derived to determine the optimal economic speed under varying load conditions. A two-stage decomposed path search strategy was developed combining the Ant Colony Optimization and the Dijkstra’s algorithm to address candidate path exploration in complex delivery stages and precise energy-optimal routing in the return stage. Simulation experiments were conducted on a 10-node network and the Sioux Falls 24-node network. The results show that the proposed method reduces energy consumption by approximately 7% compared with the alternative paths under equal-distance conditions. The overall energy consumption is reduced by 13%~16% compared with the conventional shortest-path strategy.

Key words: electric vehicles, logistics distribution, route planning, vehicle energy consumption, load-space-time state network, traffic simulation

CLC Number: