Fuel-Optimal Vehicle Throttle Control: Model Logic and Preliminary Testing

Acceleration is an integral part of driving and consumes a significant portion of a vehicle’s fuel. While some studies have suggested that accelerating mildly minimizes the vehicle fuel consumption levels, this study demonstrates that this is not the case. The research presented in this paper develops a dynamic programming and path-finding algorithm to compute the fuel-optimal throttle level input for acceleration maneuvers. A constant throttle model is compared with two variable throttle models that are based on state-of-the-art path-finding algorithms: namely, the Dijkstra and the A-star algorithms. These methods were compared using two measures of effectiveness . model accuracy and computational efficiency. The results demonstrate that a variable throttle model minimizes the fuel consumed relative to a constant throttle model, but is computationally complex. The optimum solution computed using a constant throttle model is up to 10 percent fuel saving than the way one normally drives. It can also be seen that the A-star algorithm is a trade-off between the fast and less accurate constant throttle model and the slow and more accurate Dijkstra model.

  • Availability:
  • Supplemental Notes:
    • Abstract used with permission of ITS Japan. Paper No. 4136.
  • Corporate Authors:

    ITS Japan

    Tokyo,   Japan 
  • Authors:
    • Kamalanathsharma, Raj Kishore
    • Rakha, Hesham A
  • Conference:
  • Publication Date: 2013

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 12p
  • Monograph Title: 20th ITS World Congress, Tokyo 2013. Proceedings

Subject/Index Terms

Filing Info

  • Accession Number: 01538867
  • Record Type: Publication
  • ISBN: 9784990493981
  • Files: TRIS
  • Created Date: Sep 5 2014 9:51AM