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Automotive Engineering ›› 2024, Vol. 46 ›› Issue (12): 2267-2278.doi: 10.19562/j.chinasae.qcgc.2024.12.013

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Research on Cooperative Optimization Method of Traffic Signal and Speed of Connected Vehicles

Xinyu Chen,Jian Chen,Lijun Qian(),Qidong Wang   

  1. Department of Automotive and Traffic Engineering,Hefei University of Technology,Hefei 230009
  • Received:2024-05-20 Revised:2024-06-19 Online:2024-12-25 Published:2024-12-20
  • Contact: Lijun Qian E-mail:qianlijun66@163.com

Abstract:

In order to improve the traffic efficiency at the signalized intersections and the fuel economy of vehicles, a cooperative optimization method of traffic signals and speed of connected vehicles considering the human driver error is proposed in this paper. In the traffic layer, by transforming the traffic signal optimization problem into a sequencing problem to find the optimal sequence of vehicles passing through the intersections, the optimal control model for traffic signal optimization is constructed and a traffic signal optimization algorithm based on dynamic planning is proposed. In the vehicle layer, the optimal control model for vehicle speed optimization is constructed by considering the influence of driver error, and a speed optimization algorithm based on fast stochastic model predictive control for connected vehicles is proposed. The simulation and intelligent connected micro-vehicle test results show that the co-optimization strategy proposed in this paper can effectively alleviate the deceleration and stopping of vehicles at intersections due to driver errors, and further reduce the travel time, idling time and fuel consumption of vehicles.

Key words: intelligent transportation, signalized intersections, cooperative control, human driver error