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Journal of Highway and Transportation Research and Development  2022, Vol. 16 Issue (3): 85-93    DOI:
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Longitudinal and Lateral Coordinated Control of Platoon Based on Improved Intelligent Driver Model
QIN Pin-pin1,2, TAN Hong-yun1,2, ZHANG Shun-feng1,2, LI Zi-ming1,2, HUANG Jun-ming1,2
1. Guangxi Key Laboratory of Manufacturing System & Advanced Manufacturing Technology, Guangxi Nanning 530004, China;
2. School of Mechanical Engineering, Guangxi University, Guangxi Nanning 530004, China
Abstract  In order to study the influence of road geometric parameters such as curve, super-elevation and slope on the longitudinal and lateral coordinated control of intelligent and connected platoon, a cooperative control system using the longitudinal velocity of the vehicle as the coupled variable of the longitudinal and lateral motion is designed. The upper acceleration model of longitudinal car-following control adopted the improved intelligent driver model to reflect the influence of road geometric parameters on the car-following behavior. Combined with the inverse longitudinal dynamics model to realize the speed following of the guided vehicle. The lateral trajectory control adopted the single-point preview model in which the preview distance follows the coupling speed change to realize the trajectory tracking of the guided vehicle, and the sliding mode controller is designed to improve trajectory tracking accuracy. The Carsim/Simulink co-simulation platform was built, then acceleration-deceleration, double shifting line and ramp conditions were adopted to verify longitudinal, lateral and cooperative control performance of the cooperative control system. The results show that (1) The longitudinal and lateral cooperative control system has good longitudinal car-following performance and high lateral trajectory tracking accuracy, it maintains high tracking accuracy for the speed and acceleration of the guided vehicle. The distance between vehicles is positively correlated with speed changes, and the inter-vehicle distance tends to be stable when the speed is stable. Meanwhile, the steering angle of the control system has a high consistency with the Carsim's built-in model, and the steering is smooth. The lateral offset is less than 0.2 meters, and the control system with sliding mode control has higher trajectory tracking accuracy. (2) The intelligent and connected platoon composed of the coordinated control system based on the IIDM has more obvious longitudinal and lateral response to the road geometric parameters than the platoon of the IDM. The specific performance is that the deceleration behavior is more obvious, the inter-vehicle distance increase by 0.55 meters, the steering angle reduce and average lateral offsets reduce by 2.51×10-6 meters, which is more conducive to the overall safety of the platoon.
Key wordsintelligent transportation      longitudinal and lateral coordinated control      improved intelligent driver model      intelligent and connected platoon      road geometric     
Received: 22 March 2021     
Fund:Supported by the Guangxi Innovation-Driven Development Special Project (No.Guike AA18242033; No.GuikeAA18242033-6); the Guangxi Manufacturing System and Advanced Manufacturing Technology Key Laboratory Project (No.19-050-44-S003); the Guangxi Science and Technology Base and Talent Special Project (No.2018AD19349)
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QIN Pin-pin
TAN Hong-yun
ZHANG Shun-feng
LI Zi-ming
HUANG Jun-ming
Cite this article:   
QIN Pin-pin,TAN Hong-yun,ZHANG Shun-feng, et al. Longitudinal and Lateral Coordinated Control of Platoon Based on Improved Intelligent Driver Model[J]. Journal of Highway and Transportation Research and Development, 2022, 16(3): 85-93.
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