An Eco-Driving Signal Control Model for Divisible Electric Platoons in Cooperative Vehicle-Infrastructure Systems

This paper proposed an eco-driving model for divisible electric platoons at a signalized intersection in the environment of cooperative vehicle-infrastructure systems (CVIS). Platoon releasing plan and signal control scheme are obtained through platoon splitting and speed guidance. One main contribution of the method is the proposal of a new multi-objective optimization model with the objective functions aiming at minimizing platoon passing time and energy consumption, as well as the optimal solution is obtained by Matlab programs. According to the optimal scheme, the platoons are split up, and speed guidance is conducted. Combining with the phase plan, the platoons are released at the signalized intersection. The simulation of the proposed eco-driving platoon control model (EPCM) and actuated platoon control model (APCM) are conducted with Matlab and Simulation of Urban Mobility (SUMO) invoked by Python. The simulation results show that the average waiting time of vehicles decreased by 8.97%, the maximum queuing time of vehicles in four directions decreased from 38.1% to 54.3%, respectively, and the total energy consumption decreased by 21.3%, which indicate that the EPCM can effectively reduce the energy consumption of electric platoons while through the intersection. The passing efficiency can be ensured, and the average waiting time at the stop line can be reduced in the meantime.