Volume 43 Issue 1
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ZHANG Xi, SONG Mingtao, HUANG Yanni, CHEN Feng. Analysis of the Autonomous Truck Platoon's Fuel Consumption Considering Morphological Parameters[J]. Journal of Transport Information and Safety, 2025, 43(1): 152-160. doi: 10.3963/j.jssn.1674-4861.2025.01.014
Citation: ZHANG Xi, SONG Mingtao, HUANG Yanni, CHEN Feng. Analysis of the Autonomous Truck Platoon's Fuel Consumption Considering Morphological Parameters[J]. Journal of Transport Information and Safety, 2025, 43(1): 152-160. doi: 10.3963/j.jssn.1674-4861.2025.01.014
shu

Analysis of the Autonomous Truck Platoon's Fuel Consumption Considering Morphological Parameters

doi: 10.3963/j.jssn.1674-4861.2025.01.014
  • 1.

    Institute of Transportation Safety Research, Shenzhen Technology Institute of Urban Public Safety, Shenzhen 518000, Guangdong, China

  • 2.

    School of Architecture, Harbin Institute of Technology(Shenzhen), Shenzhen 518000, Guangdong, China

  • 3.

    Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China

  • Received Date: 2024-07-03
    Available Online: 2025-06-27
    Abstract
  • Air drag and fuel consumption of an autonomous truck platoon are critically influenced by its morphological parameters: longitudinal interval, lateral offset, lateral distribution mode, and number of vehicles. A comprehensive analysis of morphological parameters' impact on truck platoon fuel consumption can facilitate the rational formulation of truck platoon, optimize fuel-saving rates, and provide data for further evaluation of economic benefits. Based on the driving data, 343 two-truck platoons and 2 401 three-truck platoons with different morphological parameters are proposed. Using a three-dimensional unstructured grid modeling method, models of all these truck platoons have been developed. Air drag coefficients of all platoons are calculated by computational fluid dynamics simulations. With these air drag coefficients and a method for calculating fuel consumption, fuel consumption estimation of all platoons has been analyzed using Monte Carlo simulation. The results show that smaller longitudinal intervals and lateral offsets are more conducive to reducing the fuel consumption of a platoon, and a three-truck platoon exhibit superior fuel-saving performance compared to a two-truck platoon. For a two-truck platoon, air drag coefficients of its leader truck and its tail truck are 87.43%~100.6% and 58.0%~76.30% of that of a single truck respectively. For a three-truck platoon, the air drag coefficients of the leader truck, the middle truck and the tail truck are 84.19%~100.9%, 45.65%~81.19% and 45.24%~77.20% of that of a single truck respectively. For a dynamic truck platoon, adverse effect caused by lateral offset has been eliminated by the proposed lateral distribution mode. While the longitudinal interval equals six meters and lateral offset distributes within 90 cm with a normal distribution, average fuel saving rates of a two-truck platoon and a three-truck platoon are 10.71% and 15.65%, respectively.

     

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