Research on fuel economy of car trailing semitrailer in platoon

doi:10.3785/j.issn.1008-973X.2021.03.005

Journal of ZheJiang University (Engineering Science)

2021, Vol. 55

Issue (3): 455-461 DOI: 10.3785/j.issn.1008-973X.2021.03.005

Research on fuel economy of car trailing semitrailer in platoon

Meng-ting YU1,2,3(

),Ying-ping WANG1,2,3,Chu-qi SU1,2,3,*(

),Qi TAO1,2,3,Jian-peng SHI4

1. Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China
2. Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan 430070, China
3. Hubei Research Center for New Energy and Intelligent Connected Vehicle, Wuhan University of Technology, Wuhan 430070, China
4. Dongfeng Motor Corporation Technical Center, 430070 Wuhan, China

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Abstract

A car trailing a semitrailer was taken to research on the fuel consumption of the vehicles in platoon more accurately. The aerodynamic drag coefficient of the car in the trailing process was obtained by numerical simulation. By building the one-dimensional model of radiator and fan to simulate the heat dissipation of the car, the power of the fan was obtained. The formula of vehicle net fuel saving rate based on aerodynamic drag coefficient and fan power was derived by using vehicle driving equation, and the fuel economy of the trailing car was calculated and analyzed. Results show that the engine compartment heat dissipation has an effect on the fuel consumption of the trailing car in platoon, and the effect increases with the increase of the distance between the car and the semitrailer. The net fuel consumption reduction ratio of the trailing car decreases with the increase of the distance between two vehicles. When the distance is 0.5 to 1.0 times the length of car, the net fuel consumption reduction ratio of the car is most sensitive to the change of distance.

Key words： automobile aerodynamics platoon driving fuel consumption numerical simulation heat dissipation of engine

Received: 04 March 2020 Published: 25 April 2021

CLC:

U 461.8

Fund: 国家自然科学基金资助项目（51775395）；国家重点研发计划资助项目（2018YFB0105301）

Corresponding Authors: Chu-qi SU E-mail: yumengting1108@qq.com;suchuqi@whut.edu.cn

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Cite this article:

Meng-ting YU,Ying-ping WANG,Chu-qi SU,Qi TAO,Jian-peng SHI. Research on fuel economy of car trailing semitrailer in platoon. Journal of ZheJiang University (Engineering Science), 2021, 55(3): 455-461.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2021.03.005 OR http://www.zjujournals.com/eng/Y2021/V55/I3/455

尾随半挂车队列行进的轿车燃油经济性研究

为了精确研究队列中汽车的燃油消耗情况，以一辆轿车尾随一辆半挂车为例，对轿车队列尾随过程进行数值模拟，得到尾随过程中轿车的气动阻力系数. 建立轿车散热器-风扇一维散热模型，得到轿车风扇的功率，利用汽车行驶方程，推导得到基于气动阻力系数及风扇功率的车辆净燃油节省率公式，研究队列中尾随轿车的燃油经济性. 结果表明：发动机舱散热对尾随轿车的燃油消耗有一定影响，且间距越大影响越大；轿车的净燃油节省率随车间距的增大而减小，在间距为0.5至1.0倍轿车车长内时，轿车的净燃油节省率对间距变化最敏感.

关键词： 汽车空气动力学, 队列行驶, 燃油消耗, 数值模拟, 发动机散热

Fig.1 Schematic diagram of semitrailer and car model

Tab.1 Basic parameters of semitrailer and car model

Fig.2 Meshing schematic diagram of section y=0

Fig.3 Variation curve of aerodynamic drag coefficient of car and semitrailer

Fig.4 Pressure distributions of car driving alone and platoon at D=0.5l

Fig.5 Front and back pressure and pressure difference of car radiator under different distance

Fig.6 Variation curve of car radiator air intake speed

Fig.7 Variation curve of car radiator heat dissipation capacity

Tab.2 Main parameters of car radiator

Fig.8 One dimensional simulation model of radiator-fan

Fig.9 Variation curve of carradiator cooling air demand

Fig.10 Variation curve of car fan increased power

Fig.11 Variation curve of car power savings due to reduction of aerodynamic coefficient

Fig.12 Variation curve of car fuel consumption saving rate


[1]	JACUZZI E, GRANLUND K Passive flow control for drag reduction in vehicle platoons[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2019, 189: 104- 117 doi: 10.1016/j.jweia.2019.03.001

[2]	MAHMOUDABADBOZCHELOU M, RABIEI N, BAZARGAN M Numerical and experimental investigation of the optimization of vehicle speed and inter-vehicle distance in an automated highway car platoon to minimize fuel consumption[J]. SAE International Journal of Connected and Automated Vehicles, 2018, 1 (1): 3- 11 doi: 10.4271/12-01-01-0001

[3]	傅立敏, 贺宝琴, 吴允柱, 等队列行驶车辆间距对气动特性的影响[J]. 汽车工程, 2007, 29 (5): 365- 400 FU Li-min, HE Bao-qin, WU Yun-zhu, et al The influence of inter-vehicle distance on aerodynamic characteristic of vehicle platoon[J]. Automotive Engineering, 2007, 29 (5): 365- 400 doi: 10.3321/j.issn:1000-680X.2007.05.001

[4]	贺宝琴. 汽车队列行驶的气动特性研究[D]. 长春: 吉林大学, 2009: 75-77. HE Bao-qin. Research on automotive characteristic of platoon [D]. Changchun: Jilin University, 2009: 75-77.

[5]	傅立敏, 吴允柱, 贺宝琴队列行驶车辆的空气动力特性[J]. 吉林大学学报: 工学版, 2006, 36 (6): 871- 875 FU Li-min, WU Yun-zhu, HE Bao-qin Aerodynamic characteristic of vehicle platoon[J]. Journal of Jilin University: Engineeringand Technology Edition, 2006, 36 (6): 871- 875

[6]	ROBERTSON F H, BOURRIEZ F, HE M, et al An experimental investigation of the aerodynamic flows created by lorries travelling in a long platoon[J]. Journal of Wind Engineering andIndustrial Aerodynamics, 2019, 193: 103966 doi: 10.1016/j.jweia.2019.103966

[7]	ALTINISIK A, YEMENICI O, UMUR H Aerodynamic analysis of a passenger car at yaw angle and two-vehicle platoon[J]. Journal of Fluids Engineering-Transactions of the ASME, 2015, 137 (12): 121107 doi: 10.1115/1.4030869

[8]	SCHITO P, BRAGHIN F Numerical and experimental investigation on vehicles in platoon[J]. SAE International Journal of Commercial Vehicles, 2012, 5 (1): 63- 71 doi: 10.4271/2012-01-0175

[9]	TSUGAWA S, KATO S, AOKI K. An automated truck platoon for energy saving [C]// 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems. San Francisco: IEEE, 2011: 4109-4114.

[10]	LAMMERT M P, DURAN A, DIEZ J, et al Effect of platooning on fuel consumption of class 8 vehicles over a range of speeds, following distances, and mass[J]. SAE International Journal of Commercial Vehicles, 2014, 7 (2): 626- 639 doi: 10.4271/2014-01-2438

[11]	BONNET C, FRITZ H. Fuel consumption reduction in a platoon experimental results with two electronically coupled trucks at close spacing [C]// 2000 Future Transportation Technology Conference and Exposition. Costa Mesa: SAE, 2000.

[12]	谷正气, 龚旭, 贾新建, 等轿车尾随集装箱车外流场计算仿真分析[J]. 湖南大学学报: 自然科学版, 2009, 36 (1): 30- 34 GU Zheng-qi, GONG Xu, JIA Xin-jian, et al Numerical simulation analysis of the external flow field of automotive trailing a container truck[J]. Journal of Hunan University: Natural Sciences, 2009, 36 (1): 30- 34

[13]	王靖宇, 刘畅, 李胜, 等队列行驶三辆汽车外流场的数值模拟[J]. 重庆交通大学学报: 自然科学版, 2007, 26 (5): 138- 141 WANG Jing-yu, LIU Chang, LI Sheng, et al Numerical simulation of flow field around three-car platoon[J]. Journal of Chongqing Jiaotong University: Natural Sciences, 2007, 26 (5): 138- 141

[14]	AZIM A, GAWAD A. A flow visualization study of the aerodynamic interference between passenger cars [C]// SAE 2000 World Congress and Exhibition. Detroit: SAE, 2000: 1-12.

[15]	ELLIS M, GARGOLOFF J I, SENGUPTA R Aerodynamic drag and engine cooling effects on class 8 trucks in platooning configurations[J]. SAE International Journal of Commercial Vehicles, 2015, 8 (2): 732- 739 doi: 10.4271/2015-01-2896

[16]	袁志群, 谷正气基于多孔介质材料和仿生设计的汽车阻流板减阻机理[J]. 中国机械工程, 2019, 30 (7): 777- 785 QUAN Zhi-qun, GU Zheng-qi Aerodynamic drag reduction mechanism of automobile spoiler based on porous media and bionic design[J]. China Mechanical Engineering, 2019, 30 (7): 777- 785 doi: 10.3969/j.issn.1004-132X.2019.07.004

[17]	NIMTAN R, DOOST A K, MADANI N Simulation of air flow under the hood of a passenger car using computational fluid dynamics[J]. Research Journal of Applied Science, Engineering and Technology, 2013, 6 (24): 4583- 4594 doi: 10.19026/rjaset.6.3472

[18]	宋昕. 汽车气动升力及其对直线行驶能力影响的研究 [D]. 长沙: 湖南大学, 2012: 59-60. SONG Xin. Research on automotive aerodynamic lift and its effects on straight-line driving ability [D]. Changsha: Hunan University, 2012: 59-60.

[19]	傅立敏. 汽车空气动力学数值计算[M]. 北京: 北京理工大学出版社, 2001.

[20]	余志生. 汽车理论[M]. 5版. 北京: 机械工业出版社, 2009.

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