Administrator by China Associction for Science and Technology
Sponsored by China Society of Automotive Engineers
Published by AUTO FAN Magazine Co. Ltd.

Automotive Engineering ›› 2022, Vol. 44 ›› Issue (9): 1400-1409.doi: 10.19562/j.chinasae.qcgc.2022.09.011

Special Issue: 新能源汽车技术-电驱动&能量管理2022年

Previous Articles     Next Articles

Energy Management Strategy Based on TD3-PER for Hybrid Electric Tracked Vehicle

Bin Zhang,Yuan Zou(),Xudong Zhang,Guodong Du,Wenjing Sun,Wei Sun   

  1. School of Mechanical Engineering,Beijing Institute of Technology,Beijing  100081
  • Received:2021-12-30 Revised:2022-04-09 Online:2022-09-25 Published:2022-09-21
  • Contact: Yuan Zou E-mail:zouyuanbit@vip.163.com

Abstract:

To optimize the fuel economy and traction battery performance of series hybrid electric tracked vehicle (SHETV), an energy management strategy (EMS) based on twin delayed deep deterministic policy gradient with prioritized experience replay (TD3-PER) is proposed. The TD3 algorithm can achieve more precise continuous control and prevent training from falling into over-assessment. The PER algorithm can accelerate strategy training and obtain higher optimization performance. Based on the model of the SHETV including longitudinal and lateral dynamics, the framework construction and simulation verification of EMS based on TD3-PER is completed. The results show that compared with deep deterministic policy gradient algorithm, the strategy proposed reduces the fuel consumption of SHETV by 3.89%, making its fuel economy reaching 95.05% of DP algorithm as a benchmark, with a better battery SOC retention ability and working condition adaptability.

Key words: series hybrid electric tracked vehicles, twin delayed deep deterministic policy gradient, continuous control, prioritized experience replay