Shandong Science

   

Road adaptability simulation of double-trailer trains based onvehicle dynamics

QU Huaikun 1,YAN Xincai2,QUAN Yukun2,SONG Yunlong1,LIU Qingjie1,QIU Zhaowen2*   

  1. 1. RIOH Automobile Testing Technology Co., Ltd, Beijing 101103, China; 2. School of Automobile, Chang'an University, Xi’an 710018, China
  • Received:2025-06-30 Accepted:2025-08-24 Online:2026-01-27
  • Contact: QIU Zhaowen E-mail: qzw@chd.edu.cn

Abstract: To investigate the adaptability of double-trailer trains on typical roads in China, two simulation models for double-trailer trains were developed based on vehicle dynamics. Typical road scenarios, such as freeway ramps, freeways, U-turns, interchanges, and intersections, were constructed on the Trucksim platform. The road adaptability of double-trailer trains was simulated and evaluated based on maximum swept road width and rearward amplification factor. Simulation results reveal that  both models travel normally along the target trajectory and exhibit high adaptability to the constructed scenarios, except for scenarios with excessively small turning radii or low road adhesion coefficients. A comparative analysis reveals that the rear unit of the C-double model achieves a higher degree of trajectory coincidence between the rear unit and tractor unit, thereby demonstrating better pass ability, whereas the B-double model, with wheel connections between all units, is more stable during driving.

Key words: vehicle engineering, double-trailer train, vehicle dynamics, typical road scenarios, road adaptability, rearward amplification

CLC Number: 

  • U469.5

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