Vehicle Engineering

Energy Management Strategies for Fuel Cell Vehicle Considering Air Conditioning Systems

  • ZHAO Youqun ,
  • XU Zhou ,
  • YU Zhihao ,
  • LIN Fen ,
  • HE Kunpeng ,
  • YOU Qingshen
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  • 1.School of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China
    2.Chery New Energy Vehicle Co. ,Ltd. ,Wuhu 241002,Anhui,China

Received date: 2024-08-04

  Online published: 2024-12-13

Supported by

the National Natural Science Foundation of China(52472411)

Abstract

In the actual operation of fuel cell hybrid electric vehicles, the air conditioning system provides a comfortable environment for drivers and passengers. However, the performance of the air conditioning system interacts with the vehicle’s energy distribution during operation. Therefore, it is necessary to integrate the air conditioning system into the energy management strategy, and design an energy management strategy that ensures the cabin temperature comfort requirements while also considering the overall hydrogen consumption efficiency of the vehicle. Firstly, based on the vehicle dynamics model, the heat balance equation was used to establish the heat pump air-conditioning system model and heat load model. Then, the dual delay depth deterministic strategy gradient (TD3-PER) algorithm combining the double Q network and the depth deterministic strategy gradient was used to establish the energy management strategy considering the energy consumption of the air conditioning system and the vehicle operation demand. Simulation under the typical NEDC driving cycle shows that with the TD3-PER energy management strategy, the air conditioning system can rapidly bring the cabin temperature to and maintain it within the comfortable range of 22 ℃ to 26 ℃ in 100 seconds, ensuring cooling/heating performance to maintain cabin comfort. This validates the feasibility of the TD3-PER energy management strategy when considering the air conditioning system. During cooling/heating operation, compared to the traditional Deep Deterministic Policy Gradient (DDPG) algorithm, the power distribution strategy based on the TD3-PER algorithm can extend the lifespan of both the fuel cell and the battery. Additionally, in terms of hydrogen consumption, the TD3-PER-based strategy can improve fuel economy by 2.59 percentage points during cooling and 3.58 percentage points during heating. This demonstrates that the TD3-PER algorithm-based energy management strategy offers significant advantages over traditional algorithms in terms of reducing hydrogen consumption and improving overall vehicle efficiency.

Cite this article

ZHAO Youqun , XU Zhou , YU Zhihao , LIN Fen , HE Kunpeng , YOU Qingshen . Energy Management Strategies for Fuel Cell Vehicle Considering Air Conditioning Systems[J]. Journal of South China University of Technology(Natural Science), 2025 , 53(6) : 56 -65 . DOI: 10.12141/j.issn.1000-565X.240396

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