Journal
TRANSPORTATION RESEARCH RECORD
Volume 2676, Issue 8, Pages 657-669Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/03611981221084683
Keywords
operations; ITS
Funding
- National Key R&D Program of China [2021TFB1600500]
- Key R&D Program of Jiangsu Province in China [BE2020013]
- Opening Project of Key Laboratory of Intelligent Transportation Systems Technologies, Ministry of Communications, P.R. China [2020-8501]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX21_0062]
- Zhishan Young Scholar Support Program of Southeast University [2019-ZJKJ-ZDZX02-2]
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This paper proposes an adaptive eco-driving method for electric vehicles using reinforcement learning technology. It considers factors such as safety, traffic mobility, energy consumption, and comfort, and achieves balanced and stable performance in simulation studies.
One problem associated with the operation of electric vehicles (EVs) is the limited battery, which cannot guarantee their endurance. The increasing electricity consumption will also impose a burden on economy and ecology of the vehicles. To achieve energy saving, this paper proposes an adaptive eco-driving method in the environment of signalized corridors. The framework with adaptive and real-time control is implemented by the reinforcement learning technique. First, the operation of EVs in the proximity of intersections is defined as a Markov Decision Process (MDP) to apply the twin delayed deep deterministic policy gradient (TD3) algorithm, to deal with the decision process with continuous action space. Therefore, the speed of the vehicle can be adjusted continuously. Second, safety, traffic mobility, energy consumption, and comfort are all considered by designing a comprehensive reward function for the MDP. Third, the simulation study takes Aoti Street in Nanjing City with several consecutive signalized intersections as the research road network, and the state representation in MDP considers the information from consecutive downstream traffic signals. After the parameter tuning procedure, simulations are carried out for three typical eco-driving scenarios, including free flow, car following, and congestion flow. By comparing with default car-following behavior in the simulation platform SUMO and several state-of-the-art deep reinforcement learning algorithms, the proposed strategy shows a balanced and stable performance.
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