Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (12): 3452-3457.doi: 10.1329/j.cnki.jdxbgxb.20230186

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Simulation on energy consumption of truck fleet on expressway under background of vehicle⁃infrastructure cooperative environment

Zhi-fa YANG1(),Bo SUN1,Xian-jun FAN1,Wen-cai SUN1(),Jing-jing TIAN2,Ning SUN2   

  1. 1.College of Transportation，Jilin University，Changchun 130022，China
    2.China Institute of Standardization，Beijing 102200，China
  • Received:2023-03-02 Online:2023-12-01 Published:2024-01-12
  • Contact: Wen-cai SUN E-mail:yangzf@jlu.edu.cn;swcai@163.com

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Abstract:

In order to study the issue of how to form a more energy-efficient platoon of trucks under the background of vehicle road collaboration， three classic truck models were selected as the research objects and simulation parameters were set with driving speed of 22 m/s and spacing of 4.4 m. Single vehicle （homogeneous） and multiple vehicle （heterogeneous） queues of single， two， and three vehicles were simulated， an ideal simulation calculation domain to analyze the overall energy consumption and energy-saving effect of platoon through XFlow was established. The results showed that the platoon with the highest and lowest energy efficiency rates among the two platoon were the 2-2z and 6-2z fleets， with queue energy efficiency rates of 20.67% and 3.12%， respectively. The teams with the highest and lowest energy efficiency rates among the three platoon are the 2-2z and 6-6-2z fleets， respectively， with queue energy efficiency rates of 31.08% and 3.22%.

Key words: engineering of communications and transportation system, vehicle-infrastructure cooperative, homogenous platoon, heterogeneous platoon, energy saving rate, fluid dynamics simulation

CLC Number: 

  • U491

Fig.1

Three types of truck model"

Table 1

Basic parameters of three types of truck model"

参数车辆名称
2z3z6z
总长/m69.5515
总宽/m2.442.552.55
总高/m33.954
迎风面积/m26.398.547.98
额定载货质量/t4.52549

Fig.2

Determining the distance between vehicles"

Table 2

CdA value when the vehicle is driven alone"

车辆类型行驶状态CdA/m2
2z单独行驶4.20
3z单独行驶5.17
6z单独行驶4.52

Table 3

Energy saving rate of two vehicle platoon"

排布

方式

队列节能率/%

排布

方式

队列节能率/%

排布

方式

队列节能率/%
2-2z20.673-3z9.926-6z7.21
3-2z14.052-6z7.416-3z4.14
2-3z11.793-6z7.276-2z3.12

Fig.3

Velocity field vector diagram of the 2-2z fleet and the 6-2z fleet on the longitudinal central symmetry plane"

Fig.4

Static field diagram of the 2-2z fleet and 6-2z fleet on the longitudinal central symmetry plane"

Table 4

Energy saving rate of three vehicle platoon"

排布方式节能率/%排布方式节能率/%排布方式节能率/%
2-2-2z31.083-2-6z12.606-3-3z7.84
3-2-2z22.696-2-2z11.876-6-3z7.48
2-2-3z21.373-3-6z11.283-6-3z7.13
2-3-2z20.052-3-6z11.083-6-6z6.44
2-3-3z17.412-6-2z10.426-2-6z6.42
3-3-2z15.792-6-3z9.982-6-6z6.35
3-2-3z14.156-3-2z9.706-3-6z4.19
3-3-3z14.026-2-3z9.466-6-6z4.07
2-2-6z13.403-6-2z9.396-6-2z3.22

Fig.5

Static field diagram of the 3-2-6z fleet and the 3-6-2z fleet on the longitudinal central symmetry plane"

Fig.6

Velocity field vector diagram of the 3-2-6z fleet and the 3-6-2z fleet on the longitudinal central symmetry plane"

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