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Decoupling control of an integrated direct cooling thermal management system for electric vehicles.

Author(s) : XU N., YE C., HU Y., SHAO J., XU X., LIN Y., WEI J.

Type of article: IJR article

Summary

As the requirement for Li-ion battery thermal management system (TMS) in electric vehicles (EVs) rises, an integrated direct cooling thermal management system with high compactness and energy efficiency has been developed. The integrated system is based on a vapor-compression refrigeration cycle, forming a dual-evaporator system, and adopts a direct cooling scheme on the battery side, which brings high coupling effects. A novel decoupling control strategy was proposed and a weight-based fuzzy logic control algorithm was applied to implement the strategy, achieving effective temperature control and reasonable refrigerant distribution between the battery side and cabin side. Experiments conducted under various scenarios demonstrated that the average temperature of both the battery pack and cabin could be stably controlled around different target values. Maximum fluctuations were effectively limited to less than 0.7 °C in different scenarios. The implementation of this decoupling control strategy has opened up new possibilities for the application of direct cooling TMS in multi-target systems.

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Pages: 165-174

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Details

  • Original title: Decoupling control of an integrated direct cooling thermal management system for electric vehicles.
  • Record ID : 30032254
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 160
  • Publication date: 2024/04
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2024.01.010

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