IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v328y2025ics0360544225021437.html
   My bibliography  Save this article

Energy efficiency optimization of passenger vehicles considering aerodynamic wake flow influence in car-following scenarios

Author

Listed:
  • Lei, Zhenzhen
  • Wan, Wenjun
  • Xue, Along
  • Zeng, Chao
  • Zhang, Yuanjian
  • Chen, Zheng
  • Liu, Yonggang

Abstract

Air resistance plays a crucial role in enhancing fuel efficiency and reducing emissions in vehicle platoons. This paper examines the impact of passenger vehicle’s wake flow on drag reduction in various following scenarios and proposes an efficient following strategy to optimize fuel economy while ensuring vehicle safety. First, the outflow field of passenger vehicle queue is theoretically analyzed, and an aerodynamic simulation model is established. Next, an equivalent drag coefficient estimation method is introduced by incorporating vehicle speed and following distance. Furthermore, a following through control strategy for drag reduction is proposed based on the estimation model. To optimize both safety and drag reduction in real driving conditions, a soft constraint on the equivalent drag coefficient is applied using flexible boundary conditions. Simulation results demonstrate that the proposed following through control strategy, with adaptive drag reduction, can reduce the equivalent drag coefficient by up to 10.77 % and improve average energy efficiency by 9.76 %, highlighting the significant potential of following drag reduction in autonomous driving.

Suggested Citation

  • Lei, Zhenzhen & Wan, Wenjun & Xue, Along & Zeng, Chao & Zhang, Yuanjian & Chen, Zheng & Liu, Yonggang, 2025. "Energy efficiency optimization of passenger vehicles considering aerodynamic wake flow influence in car-following scenarios," Energy, Elsevier, vol. 328(C).
    • Handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225021437
    DOI: 10.1016/j.energy.2025.136501
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225021437
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.136501?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225021437. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.